/* 
 * Electronic Enterprise Theme - 电子模块企业官网主题
 * 大气科技风格
 */

/* ===== 变量定义 ===== */
:root {
  --primary-color: #0066cc;
  --primary-dark: #0052a3;
  --primary-light: #3384d6;
  --secondary-color: #00c8ff;
  --accent-color: #ff6b35;
  --dark-bg: #0a1628;
  --dark-surface: #1a2332;
  --dark-card: #243047;
  --text-primary: #ffffff;
  --text-secondary: #b8c5d6;
  --text-muted: #7a8fa6;
  --border-color: rgba(255, 255, 255, 0.1);
  --gradient-primary: linear-gradient(135deg, #0066cc 0%, #00c8ff 100%);
  --gradient-dark: linear-gradient(180deg, #0a1628 0%, #1a2332 100%);
  --shadow-lg: 0 20px 60px rgba(0, 102, 204, 0.3);
  --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.15);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===== 基础样式 ===== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  background: var(--dark-bg);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

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

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

ul, ol {
  list-style: none;
}

/* ===== 容器 ===== */
.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 20px;
}

.container-lg {
  max-width: 1600px;
  margin: 0 auto;
  padding: 0 40px;
}

/* ===== 头部导航 ===== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(10, 22, 40, 0.95);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-color);
  transition: var(--transition);
}

.header.scrolled {
  background: rgba(10, 22, 40, 0.98);
  box-shadow: var(--shadow-sm);
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 24px;
  font-weight: 700;
  color: var(--text-primary);
}

.logo-icon {
  width: 48px;
  height: 48px;
  background: var(--gradient-primary);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
}

.logo-text span {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* 主导航 */
.main-nav {
  display: flex;
  align-items: center;
  gap: 40px;
}

.nav-link {
  position: relative;
  font-size: 16px;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 8px 0;
  transition: var(--transition);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-primary);
  transition: var(--transition);
}

.nav-link:hover {
  color: var(--text-primary);
}

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

.nav-link.active {
  color: var(--secondary-color);
}

.nav-link.active::after {
  width: 100%;
}

/* 移动端菜单按钮 */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  cursor: pointer;
  padding: 10px;
}

.menu-toggle span {
  width: 28px;
  height: 2px;
  background: var(--text-primary);
  transition: var(--transition);
}

/* ===== Hero 区域 ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 0 80px;
  background: var(--gradient-dark);
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    radial-gradient(circle at 20% 50%, rgba(0, 102, 204, 0.15) 0%, transparent 50%),
    radial-gradient(circle at 80% 50%, rgba(0, 200, 255, 0.15) 0%, transparent 50%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
}

.hero-badge {
  display: inline-block;
  padding: 8px 20px;
  background: rgba(0, 200, 255, 0.15);
  border: 1px solid rgba(0, 200, 255, 0.3);
  border-radius: 50px;
  font-size: 14px;
  color: var(--secondary-color);
  margin-bottom: 24px;
  animation: fadeInUp 0.8s ease;
}

.hero-title {
  font-size: 56px;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 24px;
  animation: fadeInUp 0.8s ease 0.2s both;
}

.hero-title span {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-desc {
  font-size: 20px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 40px;
  animation: fadeInUp 0.8s ease 0.4s both;
}

.hero-buttons {
  display: flex;
  gap: 20px;
  animation: fadeInUp 0.8s ease 0.6s both;
}

/* 按钮样式 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 32px;
  font-size: 16px;
  font-weight: 600;
  border-radius: 8px;
  cursor: pointer;
  transition: var(--transition);
  border: none;
}

.btn-primary {
  background: var(--gradient-primary);
  color: var(--text-primary);
  box-shadow: var(--shadow-lg);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 30px 70px rgba(0, 102, 204, 0.4);
}

.btn-secondary {
  background: transparent;
  color: var(--text-primary);
  border: 2px solid var(--border-color);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--primary-color);
}

.btn-lg {
  padding: 16px 40px;
  font-size: 18px;
}

/* Hero 装饰元素 */
.hero-visual {
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 50%;
  max-width: 700px;
  opacity: 0.8;
}

.hero-particles {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  overflow: hidden;
  pointer-events: none;
}

.particle {
  position: absolute;
  width: 4px;
  height: 4px;
  background: var(--secondary-color);
  border-radius: 50%;
  opacity: 0.5;
  animation: float 15s infinite ease-in-out;
}

@keyframes float {
  0%, 100% {
    transform: translateY(0) translateX(0);
  }
  25% {
    transform: translateY(-30px) translateX(15px);
  }
  50% {
    transform: translateY(-60px) translateX(-15px);
  }
  75% {
    transform: translateY(-30px) translateX(30px);
  }
}

/* ===== 特性区块 ===== */
.features-section {
  padding: 100px 0;
  background: var(--dark-surface);
}

.section-header {
  text-align: center;
  max-width: 800px;
  margin: 0 auto 60px;
}

.section-badge {
  display: inline-block;
  padding: 6px 16px;
  background: rgba(0, 200, 255, 0.1);
  border-radius: 50px;
  font-size: 14px;
  color: var(--secondary-color);
  margin-bottom: 16px;
}

.section-title {
  font-size: 42px;
  font-weight: 700;
  margin-bottom: 16px;
}

.section-desc {
  font-size: 18px;
  color: var(--text-secondary);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
}

.feature-card {
  position: relative;
  padding: 40px;
  background: var(--dark-card);
  border-radius: 16px;
  border: 1px solid var(--border-color);
  transition: var(--transition);
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-primary);
  opacity: 0;
  transition: var(--transition);
}

.feature-card:hover {
  transform: translateY(-8px);
  border-color: rgba(0, 200, 255, 0.3);
  box-shadow: var(--shadow-lg);
}

.feature-card:hover::before {
  opacity: 1;
}

.feature-icon {
  width: 64px;
  height: 64px;
  background: rgba(0, 200, 255, 0.15);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  margin-bottom: 24px;
}

.feature-title {
  font-size: 24px;
  font-weight: 600;
  margin-bottom: 12px;
}

.feature-desc {
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ===== 产品展示区 ===== */
.products-section {
  padding: 100px 0;
  background: var(--dark-bg);
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 30px;
}

.product-card {
  position: relative;
  background: var(--dark-card);
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--border-color);
  transition: var(--transition);
}

.product-card:hover {
  transform: translateY(-8px);
  border-color: var(--primary-color);
  box-shadow: var(--shadow-lg);
}

.product-image {
  position: relative;
  height: 220px;
  background: var(--gradient-primary);
  overflow: hidden;
}

.product-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}

.product-card:hover .product-image img {
  transform: scale(1.1);
}

.product-tag {
  position: absolute;
  top: 16px;
  right: 16px;
  padding: 6px 14px;
  background: rgba(255, 255, 255, 0.95);
  color: var(--primary-color);
  font-size: 12px;
  font-weight: 600;
  border-radius: 50px;
}

.product-info {
  padding: 24px;
}

.product-title {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 8px;
}

.product-desc {
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.6;
  margin-bottom: 16px;
}

.product-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  border-top: 1px solid var(--border-color);
}

.product-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--secondary-color);
  font-size: 14px;
  font-weight: 500;
}

.product-link:hover {
  gap: 10px;
}

/* ===== 新闻资讯 ===== */
.news-section {
  padding: 100px 0;
  background: var(--dark-surface);
}

.news-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 30px;
}

.news-card {
  position: relative;
  background: var(--dark-card);
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--border-color);
  transition: var(--transition);
}

.news-card:hover {
  transform: translateY(-8px);
  border-color: rgba(0, 200, 255, 0.3);
  box-shadow: var(--shadow-lg);
}

.news-image {
  height: 200px;
  overflow: hidden;
}

.news-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}

.news-card:hover .news-image img {
  transform: scale(1.1);
}

.news-content {
  padding: 24px;
}

.news-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 12px;
  font-size: 14px;
  color: var(--text-muted);
}

.news-date {
  display: flex;
  align-items: center;
  gap: 6px;
}

.news-category {
  padding: 4px 12px;
  background: rgba(0, 200, 255, 0.15);
  border-radius: 50px;
  color: var(--secondary-color);
  font-size: 12px;
}

.news-title {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 12px;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-excerpt {
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 16px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ===== 关于我们 ===== */
.about-section {
  padding: 100px 0;
  background: var(--dark-bg);
}

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

.about-image {
  position: relative;
  border-radius: 16px;
  overflow: hidden;
}

.about-image img {
  width: 100%;
  height: auto;
  border-radius: 16px;
}

.about-stats {
  position: absolute;
  bottom: -20px;
  right: -20px;
  background: var(--dark-card);
  padding: 30px;
  border-radius: 12px;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-lg);
}

.stat-number {
  font-size: 48px;
  font-weight: 700;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-label {
  font-size: 14px;
  color: var(--text-secondary);
  margin-top: 4px;
}

.about-content h2 {
  font-size: 42px;
  font-weight: 700;
  margin-bottom: 24px;
}

.about-content p {
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 16px;
}

.about-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-top: 32px;
}

.about-feature {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.about-feature-icon {
  width: 40px;
  height: 40px;
  background: rgba(0, 200, 255, 0.15);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.about-feature-text h4 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 4px;
}

.about-feature-text p {
  font-size: 14px;
  color: var(--text-muted);
  margin: 0;
}

/* ===== 企业招聘 ===== */
.careers-section {
  padding: 100px 0;
  background: var(--dark-surface);
}

.jobs-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
  max-width: 1000px;
  margin: 0 auto;
}

.job-item {
  background: var(--dark-card);
  padding: 30px;
  border-radius: 12px;
  border: 1px solid var(--border-color);
  transition: var(--transition);
  cursor: pointer;
}

.job-item:hover {
  border-color: var(--primary-color);
  box-shadow: var(--shadow-sm);
}

.job-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 16px;
}

.job-title {
  font-size: 22px;
  font-weight: 600;
}

.job-salary {
  font-size: 24px;
  font-weight: 700;
  color: var(--accent-color);
}

.job-meta {
  display: flex;
  gap: 20px;
  margin-bottom: 16px;
}

.job-meta-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  color: var(--text-secondary);
}

.job-tags {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.job-tag {
  padding: 6px 12px;
  background: rgba(0, 200, 255, 0.1);
  border-radius: 50px;
  font-size: 12px;
  color: var(--secondary-color);
}

/* ===== 联系我们 ===== */
.contact-section {
  padding: 100px 0;
  background: var(--dark-bg);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
}

.contact-info h2 {
  font-size: 42px;
  font-weight: 700;
  margin-bottom: 24px;
}

.contact-info p {
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 40px;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.contact-icon {
  width: 48px;
  height: 48px;
  background: rgba(0, 200, 255, 0.15);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-text h4 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 4px;
}

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

.contact-form {
  background: var(--dark-card);
  padding: 40px;
  border-radius: 16px;
  border: 1px solid var(--border-color);
}

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

.form-label {
  display: block;
  margin-bottom: 8px;
  font-size: 14px;
  font-weight: 500;
}

.form-input {
  width: 100%;
  padding: 12px 16px;
  background: var(--dark-surface);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  color: var(--text-primary);
  font-size: 15px;
  transition: var(--transition);
}

.form-input:focus {
  outline: none;
  border-color: var(--primary-color);
}

.form-input::placeholder {
  color: var(--text-muted);
}

textarea.form-input {
  min-height: 120px;
  resize: vertical;
}

/* ===== 页脚 ===== */
.footer {
  background: var(--dark-surface);
  padding: 80px 0 40px;
  border-top: 1px solid var(--border-color);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 60px;
  margin-bottom: 60px;
}

.footer-brand {
  max-width: 300px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 20px;
}

.footer-desc {
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 24px;
}

.footer-social {
  display: flex;
  gap: 12px;
}

.social-link {
  width: 40px;
  height: 40px;
  background: var(--dark-card);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: var(--transition);
}

.social-link:hover {
  background: var(--gradient-primary);
  color: var(--text-primary);
}

.footer-column h4 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 24px;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-link {
  color: var(--text-secondary);
  font-size: 15px;
  transition: var(--transition);
}

.footer-link:hover {
  color: var(--secondary-color);
  transform: translateX(4px);
}

.footer-bottom {
  padding-top: 40px;
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-copyright {
  color: var(--text-muted);
  font-size: 14px;
}

.footer-bottom-links {
  display: flex;
  gap: 24px;
}

.footer-bottom-links a {
  color: var(--text-muted);
  font-size: 14px;
}

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

/* ===== 列表页面 ===== */
.page-header {
  padding: 160px 0 80px;
  background: var(--gradient-dark);
  text-align: center;
}

.page-title {
  font-size: 48px;
  font-weight: 700;
  margin-bottom: 16px;
}

.page-desc {
  font-size: 18px;
  color: var(--text-secondary);
}

.breadcrumb {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-top: 24px;
  font-size: 14px;
  color: var(--text-muted);
}

.breadcrumb a {
  color: var(--text-secondary);
}

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

.list-container {
  padding: 60px 0;
  background: var(--dark-bg);
}

.list-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 30px;
}

/* 分页 */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 12px;
  margin-top: 60px;
}

.page-num {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--dark-card);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  color: var(--text-secondary);
  font-size: 14px;
  transition: var(--transition);
}

.page-num:hover,
.page-num.active {
  background: var(--gradient-primary);
  border-color: transparent;
  color: var(--text-primary);
}

/* ===== 内容页 ===== */
.article-container {
  padding: 60px 0;
  background: var(--dark-bg);
}

.article-wrapper {
  max-width: 900px;
  margin: 0 auto;
}

.article-header {
  margin-bottom: 40px;
}

.article-category {
  display: inline-block;
  padding: 6px 14px;
  background: rgba(0, 200, 255, 0.15);
  border-radius: 50px;
  font-size: 14px;
  color: var(--secondary-color);
  margin-bottom: 16px;
}

.article-title {
  font-size: 42px;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 24px;
}

.article-meta {
  display: flex;
  align-items: center;
  gap: 24px;
  color: var(--text-secondary);
  font-size: 14px;
}

.article-meta-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

.article-cover {
  width: 100%;
  border-radius: 16px;
  overflow: hidden;
  margin-bottom: 40px;
}

.article-cover img {
  width: 100%;
  height: auto;
}

.article-content {
  color: var(--text-primary);
  font-size: 17px;
  line-height: 1.9;
}

.article-content h2 {
  font-size: 32px;
  font-weight: 600;
  margin: 40px 0 20px;
}

.article-content h3 {
  font-size: 26px;
  font-weight: 600;
  margin: 32px 0 16px;
}

.article-content p {
  margin-bottom: 20px;
  color: var(--text-secondary);
}

.article-content img {
  border-radius: 12px;
  margin: 30px 0;
}

.article-content ul,
.article-content ol {
  margin: 20px 0;
  padding-left: 30px;
}

.article-content li {
  margin-bottom: 10px;
  color: var(--text-secondary);
}

.article-content code {
  background: var(--dark-card);
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 15px;
}

.article-content pre {
  background: var(--dark-card);
  padding: 20px;
  border-radius: 12px;
  overflow-x: auto;
  margin: 20px 0;
}

/* ===== 动画 ===== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

/* ===== 响应式设计 ===== */
@media (max-width: 1200px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }
}

@media (max-width: 992px) {
  .about-grid,
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .hero-title {
    font-size: 42px;
  }
  
  .section-title {
    font-size: 36px;
  }
  
  .hero-visual {
    display: none;
  }
}

@media (max-width: 768px) {
  .menu-toggle {
    display: flex;
  }
  
  .main-nav {
    position: fixed;
    top: 80px;
    left: 0;
    right: 0;
    background: rgba(10, 22, 40, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 30px 20px;
    gap: 20px;
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    transition: var(--transition);
  }
  
  .main-nav.active {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  
  .hero {
    padding: 100px 0 60px;
  }
  
  .hero-title {
    font-size: 32px;
  }
  
  .hero-desc {
    font-size: 16px;
  }
  
  .hero-buttons {
    flex-direction: column;
  }
  
  .features-grid,
  .products-grid,
  .news-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  
  .footer-bottom {
    flex-direction: column;
    gap: 20px;
    text-align: center;
  }
  
  .page-title {
    font-size: 36px;
  }
  
  .article-title {
    font-size: 32px;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }
  
  .hero-title {
    font-size: 28px;
  }
  
  .section-title {
    font-size: 28px;
  }
  
  .feature-card,
  .product-info,
  .news-content {
    padding: 24px;
  }
}