/* ============================================
   AICO 艾可家纺官网 - 全局样式
   高端艺术极简风
   ============================================ */

:root {
  --aico-bg: #faf8f5;
  --aico-bg-alt: #f5f1ec;
  --aico-white: #ffffff;
  --aico-primary: #2c2c2c;
  --aico-secondary: #6b6b6b;
  --aico-accent: #8b5a3c;
  --aico-accent-light: #a67c5b;
  --aico-gold: #c9a96e;
  --aico-border: #e5e0d8;
  --aico-text-light: #999;
  --aico-shadow: 0 4px 20px rgba(0,0,0,0.06);
  --aico-shadow-hover: 0 8px 30px rgba(0,0,0,0.1);
  --transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Noto Serif SC', 'Songti SC', Georgia, serif;
  background: var(--aico-bg);
  color: var(--aico-primary);
  line-height: 1.8;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

body.en {
  font-family: 'Playfair Display', Georgia, serif;
}

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 40px;
}

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

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

/* ============================================
   顶部导航
   ============================================ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(250, 248, 245, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--aico-border);
  transition: var(--transition);
}

.site-header.scrolled {
  box-shadow: var(--aico-shadow);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}

.site-logo {
  font-size: 28px;
  font-weight: 700;
  letter-spacing: 4px;
  color: var(--aico-primary);
}

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

.main-nav ul {
  display: flex;
  list-style: none;
  gap: 40px;
}

.main-nav a {
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 1px;
  color: var(--aico-primary);
  position: relative;
  padding: 5px 0;
}

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

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

.main-nav a:hover,
.main-nav a.active {
  color: var(--aico-accent);
}

.header-right {
  display: flex;
  align-items: center;
  gap: 20px;
}

.lang-switch {
  display: flex;
  gap: 8px;
  font-size: 13px;
}

.lang-switch button {
  background: none;
  border: 1px solid var(--aico-border);
  padding: 4px 12px;
  cursor: pointer;
  font-size: 12px;
  letter-spacing: 1px;
  color: var(--aico-secondary);
  transition: var(--transition);
  font-family: inherit;
}

.lang-switch button.active {
  background: var(--aico-primary);
  color: var(--aico-white);
  border-color: var(--aico-primary);
}

.btn-quote {
  background: var(--aico-primary);
  color: var(--aico-white);
  padding: 10px 24px;
  font-size: 13px;
  letter-spacing: 2px;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  font-family: inherit;
}

.btn-quote:hover {
  background: var(--aico-accent);
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  font-size: 24px;
  cursor: pointer;
  color: var(--aico-primary);
}

/* ============================================
   Hero 首屏
   ============================================ */
.hero {
  position: relative;
  height: 100vh;
  min-height: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  margin-top: 0;
}

.hero-slider {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.hero-slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
  opacity: 0;
  transition: opacity 1.5s ease-in-out;
}

.hero-slide.active {
  opacity: 1;
}

.hero-slide::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(44,44,44,0.55) 0%, rgba(44,44,44,0.3) 100%);
}

.hero-content {
  position: relative;
  z-index: 10;
  text-align: center;
  color: var(--aico-white);
  max-width: 800px;
  padding: 0 20px;
}

.hero-subtitle {
  font-size: 14px;
  letter-spacing: 6px;
  text-transform: uppercase;
  margin-bottom: 24px;
  opacity: 0.9;
}

.hero-title {
  font-size: 56px;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 24px;
  letter-spacing: 2px;
}

.hero-desc {
  font-size: 18px;
  line-height: 2;
  margin-bottom: 40px;
  opacity: 0.9;
  font-weight: 300;
}

.hero-buttons {
  display: flex;
  gap: 20px;
  justify-content: center;
}

.btn-light {
  display: inline-block;
  padding: 14px 40px;
  background: var(--aico-white);
  color: var(--aico-primary);
  font-size: 13px;
  letter-spacing: 3px;
  text-transform: uppercase;
  transition: var(--transition);
}

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

.btn-outline {
  display: inline-block;
  padding: 14px 40px;
  background: transparent;
  color: var(--aico-white);
  border: 1px solid var(--aico-white);
  font-size: 13px;
  letter-spacing: 3px;
  text-transform: uppercase;
  transition: var(--transition);
}

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

.hero-scroll {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 10;
  color: var(--aico-white);
  font-size: 12px;
  letter-spacing: 3px;
  text-align: center;
  animation: bounce 2s infinite;
}

@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(10px); }
}

.hero-dots {
  position: absolute;
  bottom: 80px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 10;
  display: flex;
  gap: 12px;
}

.hero-dot {
  width: 30px;
  height: 2px;
  background: rgba(255,255,255,0.4);
  cursor: pointer;
  transition: var(--transition);
}

.hero-dot.active {
  background: var(--aico-white);
}

/* ============================================
   通用板块
   ============================================ */
.section {
  padding: 100px 0;
}

.section-alt {
  background: var(--aico-bg-alt);
}

.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-label {
  font-size: 12px;
  letter-spacing: 6px;
  text-transform: uppercase;
  color: var(--aico-accent);
  margin-bottom: 16px;
}

.section-title {
  font-size: 36px;
  font-weight: 700;
  margin-bottom: 20px;
  letter-spacing: 2px;
}

.section-divider {
  width: 60px;
  height: 2px;
  background: var(--aico-accent);
  margin: 0 auto 24px;
}

.section-desc {
  font-size: 16px;
  color: var(--aico-secondary);
  max-width: 600px;
  margin: 0 auto;
  line-height: 2;
}

/* ============================================
   优势板块
   ============================================ */
.advantages-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
}

.advantage-card {
  background: var(--aico-white);
  padding: 40px 30px;
  text-align: center;
  transition: var(--transition);
  border: 1px solid var(--aico-border);
}

.advantage-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--aico-shadow-hover);
  border-color: var(--aico-accent);
}

.advantage-icon {
  width: 60px;
  height: 60px;
  margin: 0 auto 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  color: var(--aico-accent);
  border: 1px solid var(--aico-accent);
  border-radius: 50%;
}

.advantage-card h3 {
  font-size: 18px;
  margin-bottom: 16px;
  letter-spacing: 1px;
}

.advantage-card p {
  font-size: 14px;
  color: var(--aico-secondary);
  line-height: 1.8;
}

/* ============================================
   关于我们
   ============================================ */
.about-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.about-image {
  position: relative;
}

.about-image img {
  width: 100%;
  height: 500px;
  object-fit: cover;
}

.about-image::after {
  content: '';
  position: absolute;
  top: 20px;
  left: 20px;
  right: -20px;
  bottom: -20px;
  border: 1px solid var(--aico-accent);
  z-index: -1;
}

.about-content h2 {
  font-size: 32px;
  margin-bottom: 24px;
  letter-spacing: 2px;
}

.about-content .section-divider {
  margin: 0 0 24px;
}

.about-content p {
  font-size: 15px;
  color: var(--aico-secondary);
  line-height: 2;
  margin-bottom: 20px;
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  margin-top: 40px;
  padding-top: 40px;
  border-top: 1px solid var(--aico-border);
}

.stat-item {
  text-align: center;
}

.stat-number {
  font-size: 36px;
  font-weight: 700;
  color: var(--aico-accent);
  margin-bottom: 8px;
}

.stat-label {
  font-size: 13px;
  color: var(--aico-secondary);
  letter-spacing: 1px;
}

/* ============================================
   产品中心
   ============================================ */
.products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.product-card {
  position: relative;
  overflow: hidden;
  cursor: pointer;
  background: var(--aico-white);
  transition: var(--transition);
}

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

.product-image {
  position: relative;
  height: 320px;
  overflow: hidden;
}

.product-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.8s ease;
}

.product-card:hover .product-image img {
  transform: scale(1.08);
}

.product-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(44,44,44,0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: var(--transition);
}

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

.product-overlay span {
  color: var(--aico-white);
  font-size: 13px;
  letter-spacing: 3px;
  text-transform: uppercase;
  border: 1px solid var(--aico-white);
  padding: 10px 30px;
}

.product-info {
  padding: 24px;
  text-align: center;
}

.product-info h3 {
  font-size: 18px;
  margin-bottom: 8px;
  letter-spacing: 1px;
}

.product-info p {
  font-size: 13px;
  color: var(--aico-secondary);
}

/* ============================================
   品牌矩阵
   ============================================ */
.brand-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.brand-card {
  background: var(--aico-white);
  padding: 50px 30px;
  text-align: center;
  border: 1px solid var(--aico-border);
  transition: var(--transition);
}

.brand-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--aico-shadow-hover);
}

.brand-logo {
  font-size: 32px;
  font-weight: 700;
  letter-spacing: 4px;
  margin-bottom: 20px;
  color: var(--aico-primary);
}

.brand-card.featured .brand-logo {
  color: var(--aico-accent);
}

.brand-tag {
  display: inline-block;
  font-size: 11px;
  letter-spacing: 2px;
  color: var(--aico-accent);
  border: 1px solid var(--aico-accent);
  padding: 4px 16px;
  margin-bottom: 20px;
  text-transform: uppercase;
}

.brand-card h3 {
  font-size: 20px;
  margin-bottom: 16px;
}

.brand-card p {
  font-size: 14px;
  color: var(--aico-secondary);
  line-height: 1.8;
  margin-bottom: 20px;
}

/* ============================================
   时间轴
   ============================================ */
.timeline {
  position: relative;
  max-width: 900px;
  margin: 0 auto;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 1px;
  background: var(--aico-border);
  transform: translateX(-50%);
}

.timeline-item {
  position: relative;
  width: 50%;
  padding: 20px 40px;
  margin-bottom: 30px;
}

.timeline-item:nth-child(odd) {
  left: 0;
  text-align: right;
}

.timeline-item:nth-child(even) {
  left: 50%;
}

.timeline-dot {
  position: absolute;
  top: 28px;
  width: 14px;
  height: 14px;
  background: var(--aico-accent);
  border-radius: 50%;
  border: 3px solid var(--aico-bg);
}

.timeline-item:nth-child(odd) .timeline-dot {
  right: -7px;
}

.timeline-item:nth-child(even) .timeline-dot {
  left: -7px;
}

.timeline-year {
  font-size: 24px;
  font-weight: 700;
  color: var(--aico-accent);
  margin-bottom: 8px;
}

.timeline-content h4 {
  font-size: 16px;
  margin-bottom: 8px;
}

.timeline-content p {
  font-size: 14px;
  color: var(--aico-secondary);
  line-height: 1.6;
}

/* ============================================
   荣誉墙
   ============================================ */
.honors-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.honor-item {
  background: var(--aico-white);
  padding: 30px;
  text-align: center;
  border: 1px solid var(--aico-border);
  transition: var(--transition);
}

.honor-item:hover {
  border-color: var(--aico-gold);
  box-shadow: var(--aico-shadow);
}

.honor-icon {
  font-size: 32px;
  color: var(--aico-gold);
  margin-bottom: 16px;
}

.honor-item h4 {
  font-size: 15px;
  margin-bottom: 8px;
  line-height: 1.5;
}

.honor-item p {
  font-size: 12px;
  color: var(--aico-text-light);
}

/* ============================================
   新闻动态
   ============================================ */
.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.news-card {
  background: var(--aico-white);
  overflow: hidden;
  transition: var(--transition);
  border: 1px solid var(--aico-border);
}

.news-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--aico-shadow-hover);
}

.news-image {
  height: 220px;
  overflow: hidden;
}

.news-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.8s ease;
}

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

.news-content {
  padding: 24px;
}

.news-date {
  font-size: 12px;
  color: var(--aico-accent);
  letter-spacing: 2px;
  margin-bottom: 12px;
}

.news-content h3 {
  font-size: 17px;
  margin-bottom: 12px;
  line-height: 1.5;
}

.news-content p {
  font-size: 14px;
  color: var(--aico-secondary);
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-more {
  display: inline-block;
  margin-top: 16px;
  font-size: 13px;
  color: var(--aico-accent);
  letter-spacing: 2px;
}

.news-more:hover {
  letter-spacing: 4px;
}

/* ============================================
   联系我们
   ============================================ */
.contact-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
}

.contact-info h3 {
  font-size: 24px;
  margin-bottom: 30px;
}

.contact-item {
  display: flex;
  gap: 20px;
  margin-bottom: 24px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--aico-border);
}

.contact-item:last-child {
  border-bottom: none;
}

.contact-icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--aico-bg-alt);
  color: var(--aico-accent);
  font-size: 18px;
  flex-shrink: 0;
}

.contact-item h4 {
  font-size: 14px;
  margin-bottom: 6px;
  color: var(--aico-secondary);
}

.contact-item p {
  font-size: 15px;
  color: var(--aico-primary);
}

.contact-form {
  background: var(--aico-white);
  padding: 40px;
  border: 1px solid var(--aico-border);
}

.contact-form h3 {
  font-size: 24px;
  margin-bottom: 30px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 13px;
  color: var(--aico-secondary);
  margin-bottom: 8px;
  letter-spacing: 1px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--aico-border);
  background: var(--aico-bg);
  font-size: 14px;
  font-family: inherit;
  color: var(--aico-primary);
  transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--aico-accent);
  background: var(--aico-white);
}

.form-group textarea {
  resize: vertical;
  min-height: 100px;
}

.btn-submit {
  width: 100%;
  padding: 14px;
  background: var(--aico-primary);
  color: var(--aico-white);
  border: none;
  font-size: 14px;
  letter-spacing: 3px;
  cursor: pointer;
  transition: var(--transition);
  font-family: inherit;
}

.btn-submit:hover {
  background: var(--aico-accent);
}

/* ============================================
   页面 Banner（内页）
   ============================================ */
.page-banner {
  height: 400px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: var(--aico-white);
  position: relative;
  background-size: cover;
  background-position: center;
  margin-top: 80px;
}

.page-banner::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(44,44,44,0.6);
}

.page-banner-content {
  position: relative;
  z-index: 1;
}

.page-banner h1 {
  font-size: 42px;
  margin-bottom: 16px;
  letter-spacing: 4px;
}

.page-banner p {
  font-size: 16px;
  opacity: 0.9;
  letter-spacing: 2px;
}

.breadcrumb {
  margin-top: 20px;
  font-size: 13px;
  opacity: 0.8;
}

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

.breadcrumb span {
  margin: 0 10px;
}

/* ============================================
   生产实力
   ============================================ */
.manufacturing-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  margin-bottom: 80px;
}

.mfg-stat {
  text-align: center;
  padding: 30px;
  background: var(--aico-white);
  border: 1px solid var(--aico-border);
}

.mfg-stat .number {
  font-size: 42px;
  font-weight: 700;
  color: var(--aico-accent);
  margin-bottom: 8px;
}

.mfg-stat .label {
  font-size: 14px;
  color: var(--aico-secondary);
}

.process-flow {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 10px;
  margin-bottom: 80px;
}

.process-step {
  text-align: center;
  padding: 20px 10px;
  background: var(--aico-white);
  border: 1px solid var(--aico-border);
  position: relative;
}

.process-step .step-num {
  font-size: 24px;
  font-weight: 700;
  color: var(--aico-accent);
  margin-bottom: 8px;
}

.process-step .step-name {
  font-size: 13px;
  color: var(--aico-primary);
}

.workshop-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
}

.workshop-card {
  background: var(--aico-white);
  overflow: hidden;
  border: 1px solid var(--aico-border);
  transition: var(--transition);
}

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

.workshop-card img {
  width: 100%;
  height: 250px;
  object-fit: cover;
}

.workshop-info {
  padding: 30px;
}

.workshop-info h3 {
  font-size: 20px;
  margin-bottom: 12px;
}

.workshop-info p {
  font-size: 14px;
  color: var(--aico-secondary);
  line-height: 1.8;
}

/* ============================================
   研发设计
   ============================================ */
.rnd-features {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 40px;
}

.rnd-card {
  display: flex;
  gap: 24px;
  padding: 30px;
  background: var(--aico-white);
  border: 1px solid var(--aico-border);
  transition: var(--transition);
}

.rnd-card:hover {
  border-color: var(--aico-accent);
  box-shadow: var(--aico-shadow);
}

.rnd-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--aico-bg-alt);
  color: var(--aico-accent);
  font-size: 24px;
  flex-shrink: 0;
}

.rnd-content h3 {
  font-size: 18px;
  margin-bottom: 10px;
}

.rnd-content p {
  font-size: 14px;
  color: var(--aico-secondary);
  line-height: 1.8;
}

.design-process {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 60px;
}

.design-step {
  text-align: center;
  padding: 30px 20px;
  background: var(--aico-white);
  border-top: 3px solid var(--aico-accent);
}

.design-step h4 {
  font-size: 16px;
  margin-bottom: 10px;
}

.design-step p {
  font-size: 13px;
  color: var(--aico-secondary);
  line-height: 1.7;
}

/* ============================================
   底部
   ============================================ */
.site-footer {
  background: #1f1f1f;
  color: #999;
  padding: 70px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 50px;
  margin-bottom: 50px;
}

.footer-brand h3 {
  font-size: 24px;
  color: var(--aico-white);
  margin-bottom: 20px;
  letter-spacing: 4px;
}

.footer-brand h3 span {
  color: var(--aico-accent);
}

.footer-brand p {
  font-size: 14px;
  line-height: 2;
  margin-bottom: 20px;
}

.footer-col h4 {
  font-size: 15px;
  color: var(--aico-white);
  margin-bottom: 24px;
  letter-spacing: 2px;
}

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

.footer-col li {
  margin-bottom: 12px;
}

.footer-col a {
  font-size: 14px;
  color: #999;
  transition: var(--transition);
}

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

.footer-contact li {
  display: flex;
  gap: 10px;
  font-size: 14px;
  line-height: 1.8;
}

.footer-bottom {
  border-top: 1px solid #333;
  padding: 24px 0;
  text-align: center;
  font-size: 13px;
  color: #666;
}

.footer-bottom p {
  margin-bottom: 6px;
}

/* ============================================
   返回顶部
   ============================================ */
.back-to-top {
  position: fixed;
  bottom: 40px;
  right: 40px;
  width: 48px;
  height: 48px;
  background: var(--aico-primary);
  color: var(--aico-white);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  z-index: 999;
  border: none;
  font-size: 18px;
}

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

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

/* ============================================
   响应式
   ============================================ */
@media (max-width: 1024px) {
  .container {
    padding: 0 24px;
  }
  .hero-title {
    font-size: 42px;
  }
  .advantages-grid,
  .manufacturing-stats {
    grid-template-columns: repeat(2, 1fr);
  }
  .products-grid,
  .news-grid,
  .honors-grid,
  .brand-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .process-flow {
    grid-template-columns: repeat(4, 1fr);
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .main-nav {
    display: none;
    position: fixed;
    top: 80px;
    left: 0;
    right: 0;
    background: var(--aico-white);
    padding: 20px;
    box-shadow: var(--aico-shadow);
  }
  .main-nav.open {
    display: block;
  }
  .main-nav ul {
    flex-direction: column;
    gap: 16px;
  }
  .mobile-menu-btn {
    display: block;
  }
  .btn-quote {
    display: none;
  }
  .hero-title {
    font-size: 32px;
  }
  .hero-desc {
    font-size: 15px;
  }
  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }
  .section {
    padding: 60px 0;
  }
  .section-title {
    font-size: 28px;
  }
  .about-wrap,
  .contact-wrap,
  .workshop-grid,
  .rnd-features {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .about-image img {
    height: 350px;
  }
  .advantages-grid,
  .products-grid,
  .news-grid,
  .honors-grid,
  .brand-grid,
  .manufacturing-stats,
  .design-process {
    grid-template-columns: 1fr;
  }
  .process-flow {
    grid-template-columns: repeat(2, 1fr);
  }
  .timeline::before {
    left: 20px;
  }
  .timeline-item {
    width: 100%;
    left: 0 !important;
    text-align: left !important;
    padding-left: 50px;
    padding-right: 0;
  }
  .timeline-dot {
    left: 13px !important;
    right: auto !important;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  .page-banner {
    height: 300px;
  }
  .page-banner h1 {
    font-size: 28px;
  }
  .about-stats {
    grid-template-columns: 1fr;
    gap: 20px;
  }
}