/* ==========================================================================
   掌中世界机场官网 (zhangzhongshijie.sbs) - 极简纯白亮色版 (Light Mode Design System)
   ========================================================================== */

:root {
  --bg-dark: #ffffff;
  --bg-subtle: #f8fafc;
  --bg-card: #ffffff;
  --bg-card-hover: #ffffff;
  
  --border-light: #e2e8f0;
  --border-focus: #3b82f6;
  
  --primary-blue: #2563eb;
  --primary-indigo: #4f46e5;
  --primary-cyan: #0284c7;
  --primary-pink: #ec4899;
  --accent-green: #10b981;
  
  --text-main: #0f172a;
  --text-muted: #475569;
  --text-dim: #94a3b8;
  
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --gradient-main: linear-gradient(135deg, #2563eb 0%, #4f46e5 100%);
  --gradient-badge: linear-gradient(135deg, rgba(37, 99, 235, 0.08) 0%, rgba(79, 70, 229, 0.08) 100%);
  --shadow-sm: 0 2px 4px rgba(0,0,0,0.02);
  --shadow-card: 0 10px 30px -5px rgba(15, 23, 42, 0.06), 0 4px 12px -2px rgba(15, 23, 42, 0.03);
  --shadow-hover: 0 20px 35px -5px rgba(37, 99, 235, 0.12), 0 10px 15px -3px rgba(37, 99, 235, 0.06);
  
  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-sm: 8px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  background-color: var(--bg-dark);
  color: var(--text-main);
  font-family: var(--font-sans);
}

body {
  overflow-x: hidden;
  line-height: 1.6;
  position: relative;
  background: radial-gradient(circle at 10% 10%, rgba(37, 99, 235, 0.03) 0%, transparent 50%),
              radial-gradient(circle at 90% 90%, rgba(14, 165, 233, 0.04) 0%, transparent 50%),
              var(--bg-dark);
}

/* 鼠标尾翼 Canvas 悬浮层 */
#trail-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 9999;
}

/* 统一容器 */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* 通用按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1.8rem;
  font-weight: 600;
  font-size: 1rem;
  border-radius: 50px;
  text-decoration: none;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: var(--gradient-main);
  color: #ffffff;
  box-shadow: 0 4px 15px rgba(37, 99, 235, 0.3);
  position: relative;
  overflow: hidden;
}

.btn-primary::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.3), transparent);
  transform: rotate(45deg);
  transition: all 0.6s ease;
}

.btn-primary:hover::before {
  left: 100%;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(37, 99, 235, 0.45);
}

.btn-secondary {
  background: #ffffff;
  color: var(--text-main);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
  background: var(--bg-subtle);
  border-color: var(--primary-blue);
  color: var(--primary-blue);
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.45rem 1.1rem;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 600;
  background: var(--gradient-badge);
  border: 1px solid rgba(37, 99, 235, 0.2);
  color: var(--primary-blue);
  margin-bottom: 1.2rem;
}

.badge-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--accent-green);
  box-shadow: 0 0 8px var(--accent-green);
  animation: pulse 1.8s infinite;
}

@keyframes pulse {
  0% { transform: scale(0.95); opacity: 0.8; }
  50% { transform: scale(1.2); opacity: 1; }
  100% { transform: scale(0.95); opacity: 0.8; }
}

/* ==========================================================================
   Header 导航栏 (纯白清爽风格)
   ========================================================================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-light);
  transition: all 0.3s ease;
}

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

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: var(--text-main);
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -0.5px;
}

.logo-icon {
  width: 40px;
  height: 40px;
}

.brand-text span {
  color: var(--primary-blue);
}

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

.nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  transition: color 0.3s ease;
  position: relative;
}

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

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0%;
  height: 2px;
  background: var(--gradient-main);
  transition: width 0.3s ease;
  border-radius: 2px;
}

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

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  color: var(--text-main);
  font-size: 1.5rem;
  cursor: pointer;
}

/* ==========================================================================
   Hero 主视觉与全球矢量网络区域
   ========================================================================== */
.hero-section {
  padding-top: 140px;
  padding-bottom: 80px;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 3rem;
  align-items: center;
}

.hero-content h1 {
  font-size: 3.3rem;
  font-weight: 800;
  line-height: 1.18;
  margin-bottom: 1.2rem;
  letter-spacing: -1px;
  color: var(--text-main);
}

.hero-content h1 .gradient-text {
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-desc {
  font-size: 1.15rem;
  color: var(--text-muted);
  margin-bottom: 2rem;
  max-width: 580px;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  margin-bottom: 2.5rem;
  flex-wrap: wrap;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-light);
}

.stat-item h3 {
  font-size: 1.85rem;
  font-weight: 800;
  color: var(--primary-blue);
}

.stat-item p {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* 矢量全球网络展示区 */
.network-dashboard-wrapper {
  position: relative;
  width: 100%;
  height: 460px;
  background: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  overflow: hidden;
}

#network-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

.dashboard-float-card {
  position: relative;
  z-index: 2;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 0.85rem 1.2rem;
  box-shadow: 0 10px 25px rgba(0,0,0,0.05);
  display: flex;
  align-items: center;
  gap: 0.85rem;
  max-width: 240px;
}

.dashboard-float-card.top-right {
  align-self: flex-end;
}

.dashboard-float-card.bottom-left {
  align-self: flex-start;
}

.card-icon-box {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(37, 99, 235, 0.1);
  color: var(--primary-blue);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
}

.card-text h5 {
  font-size: 0.85rem;
  color: var(--text-main);
  margin-bottom: 0.1rem;
}

.card-text p {
  font-size: 0.75rem;
  color: var(--accent-green);
  font-weight: 600;
}

/* ==========================================================================
   套餐价格区 (一排并列排版 - Light Mode)
   ========================================================================== */
.section-header {
  text-align: center;
  max-width: 750px;
  margin: 0 auto 3.5rem auto;
}

.section-title {
  font-size: 2.4rem;
  font-weight: 800;
  margin-bottom: 0.8rem;
  letter-spacing: -0.5px;
  color: var(--text-main);
}

.section-subtitle {
  color: var(--text-muted);
  font-size: 1.05rem;
}

.pricing-section {
  padding: 80px 0;
  background: var(--bg-subtle);
  border-top: 1px solid var(--border-light);
  border-bottom: 1px solid var(--border-light);
}

/* 核心要求：价格卡片在横向并列成一排 */
.pricing-row-container {
  width: 100%;
  overflow-x: auto;
  padding: 1rem 0 2rem 0;
  scrollbar-width: thin;
  scrollbar-color: var(--primary-blue) transparent;
}

.pricing-row-container::-webkit-scrollbar {
  height: 6px;
}

.pricing-row-container::-webkit-scrollbar-thumb {
  background: var(--primary-blue);
  border-radius: 10px;
}

.pricing-row {
  display: grid;
  grid-template-columns: repeat(4, minmax(260px, 1fr));
  gap: 1.5rem;
  align-items: stretch;
}

.price-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 2.2rem 1.6rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  box-shadow: var(--shadow-card);
}

.price-card.popular {
  border-color: var(--primary-blue);
  box-shadow: var(--shadow-hover);
  transform: translateY(-6px);
}

.price-card.popular::before {
  content: '热门推荐';
  position: absolute;
  top: -14px;
  right: 20px;
  background: var(--gradient-main);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.2rem 0.85rem;
  border-radius: 50px;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

.price-card:hover {
  border-color: var(--primary-blue);
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
}

.plan-header h3 {
  font-size: 1.4rem;
  color: var(--text-main);
  margin-bottom: 0.4rem;
}

.plan-header p {
  font-size: 0.85rem;
  color: var(--text-muted);
  min-height: 40px;
}

.plan-price {
  margin: 1.5rem 0;
  display: flex;
  align-items: baseline;
  gap: 0.25rem;
}

.price-currency {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-blue);
}

.price-amount {
  font-size: 3rem;
  font-weight: 800;
  color: var(--text-main);
  line-height: 1;
}

.price-period {
  color: var(--text-muted);
  font-size: 0.85rem;
}

.plan-features {
  list-style: none;
  margin-bottom: 2rem;
}

.plan-features li {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.plan-features li svg {
  width: 18px;
  height: 18px;
  color: var(--accent-green);
  flex-shrink: 0;
}

.plan-features li.disabled {
  opacity: 0.4;
  text-decoration: line-through;
}

.plan-features li.disabled svg {
  color: var(--text-dim);
}

/* ==========================================================================
   实时节点与节点状态展示
   ========================================================================== */
.nodes-section {
  padding: 80px 0;
}

.nodes-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.node-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-sm);
}

.node-card:hover {
  border-color: var(--primary-blue);
  box-shadow: var(--shadow-card);
}

.node-info {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.node-flag {
  font-size: 1.8rem;
  line-height: 1;
}

.node-details h4 {
  font-size: 1rem;
  margin-bottom: 0.2rem;
  color: var(--text-main);
}

.node-details p {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.node-ping {
  text-align: right;
}

.ping-value {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--accent-green);
}

.ping-status {
  font-size: 0.75rem;
  color: var(--text-dim);
}

/* ==========================================================================
   文章与知识库区 (SEO 800-1500字文章集锦)
   ========================================================================== */
.articles-section {
  padding: 90px 0;
  background: var(--bg-subtle);
  border-top: 1px solid var(--border-light);
}

.articles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2rem;
}

.article-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 1.8rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-card);
}

.article-card:hover {
  border-color: var(--primary-blue);
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}

.article-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 0.75rem;
  font-size: 0.8rem;
  color: var(--primary-blue);
  font-weight: 500;
}

.article-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.8rem;
  line-height: 1.4;
  color: var(--text-main);
}

.article-snippet {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.article-tags {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 1.2rem;
}

.tag {
  font-size: 0.75rem;
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
  background: rgba(37, 99, 235, 0.06);
  color: var(--primary-blue);
  border: 1px solid rgba(37, 99, 235, 0.15);
  font-weight: 500;
}

.article-read-btn {
  color: var(--primary-blue);
  font-weight: 600;
  font-size: 0.9rem;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  cursor: pointer;
  background: none;
  border: none;
  padding: 0;
}

.article-read-btn:hover {
  color: var(--primary-indigo);
}

/* 全屏/弹窗文章阅读器 */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(8px);
  z-index: 10000;
  display: flex;
  justify-content: center;
  align-items: center;
  opacity: 0;
  pointer-events: none;
  transition: all 0.3s ease;
  padding: 2rem;
}

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

.modal-container {
  background: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 900px;
  max-height: 85vh;
  overflow-y: auto;
  padding: 2.5rem;
  position: relative;
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.15);
}

.modal-close-btn {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  background: var(--bg-subtle);
  border: 1px solid var(--border-light);
  color: var(--text-main);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  font-size: 1.2rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s;
}

.modal-close-btn:hover {
  background: var(--primary-pink);
  color: #fff;
  border-color: var(--primary-pink);
}

.article-body-content {
  color: var(--text-muted);
  font-size: 1.05rem;
  line-height: 1.85;
  margin-top: 1.5rem;
}

.article-body-content h2 {
  color: var(--text-main);
  font-size: 1.6rem;
  margin: 1.8rem 0 1rem 0;
  border-left: 4px solid var(--primary-blue);
  padding-left: 0.8rem;
}

.article-body-content h3 {
  color: var(--primary-blue);
  font-size: 1.25rem;
  margin: 1.4rem 0 0.8rem 0;
}

.article-body-content p {
  margin-bottom: 1.2rem;
}

.article-body-content ul, .article-body-content ol {
  margin: 1rem 0 1.5rem 1.5rem;
}

.article-body-content li {
  margin-bottom: 0.5rem;
}

.article-body-content a {
  color: var(--primary-blue);
  text-decoration: underline;
  font-weight: 500;
}

.article-body-content .internal-callout {
  background: rgba(37, 99, 235, 0.05);
  border: 1px solid rgba(37, 99, 235, 0.2);
  border-radius: var(--radius-md);
  padding: 1.2rem;
  margin: 1.5rem 0;
}

/* ==========================================================================
   用户评价 Section
   ========================================================================== */
.reviews-section {
  padding: 80px 0;
}

.reviews-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.8rem;
}

.review-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 1.8rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: var(--shadow-card);
}

.review-stars {
  color: #f59e0b;
  margin-bottom: 1rem;
  font-size: 1.1rem;
}

.review-text {
  font-size: 0.95rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
  font-style: italic;
}

.review-author {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.author-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--gradient-main);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: #fff;
  font-size: 1.1rem;
}

.author-info h5 {
  font-size: 0.95rem;
  color: var(--text-main);
  margin-bottom: 0.1rem;
}

.author-info p {
  font-size: 0.78rem;
  color: var(--text-dim);
}

/* ==========================================================================
   常见问题 FAQ Section
   ========================================================================== */
.faq-section {
  padding: 80px 0;
  background: var(--bg-subtle);
  border-top: 1px solid var(--border-light);
}

.faq-list {
  max-width: 850px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color 0.3s;
  box-shadow: var(--shadow-sm);
}

.faq-item.active {
  border-color: var(--primary-blue);
}

.faq-question {
  padding: 1.25rem 1.5rem;
  font-size: 1.05rem;
  font-weight: 600;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  user-select: none;
  color: var(--text-main);
}

.faq-icon {
  font-size: 1.2rem;
  transition: transform 0.3s;
  color: var(--primary-blue);
}

.faq-item.active .faq-icon {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.35s ease;
  padding: 0 1.5rem;
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.7;
}

.faq-item.active .faq-answer {
  padding: 0 1.5rem 1.25rem 1.5rem;
  max-height: 300px;
}

/* ==========================================================================
   【核心任务 2】：PBN 权重精准输血页脚 (Footer 纯白精美小字号区)
   ========================================================================== */
footer.site-footer {
  background: #ffffff;
  border-top: 1px solid var(--border-light);
  padding: 3.5rem 0 2rem 0;
  position: relative;
  z-index: 10;
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  gap: 2.5rem;
  margin-bottom: 2.5rem;
}

.footer-brand p {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-top: 0.8rem;
  max-width: 320px;
}

.footer-col h4 {
  font-size: 1rem;
  color: var(--text-main);
  margin-bottom: 1.2rem;
  font-weight: 700;
}

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

.footer-links li {
  margin-bottom: 0.6rem;
}

.footer-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.88rem;
  transition: color 0.25s;
}

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

/* PBN 低调微缩小字号友情链接区 */
.pbn-link-pipe {
  border-top: 1px dashed var(--border-light);
  padding-top: 1.5rem;
  margin-top: 2rem;
  text-align: center;
}

.pbn-title {
  font-size: 0.78rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 0.8rem;
  font-weight: 600;
}

.pbn-links-flex {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.8rem 1.4rem;
}

.pbn-links-flex a {
  font-size: 0.8rem;
  color: #64748b;
  text-decoration: none;
  transition: color 0.2s ease;
}

.pbn-links-flex a:hover {
  color: var(--primary-blue);
  text-decoration: underline;
}

.footer-bottom {
  margin-top: 2rem;
  text-align: center;
  font-size: 0.82rem;
  color: var(--text-dim);
}

/* ==========================================================================
   移动端响应式适配 (Mobile Responsiveness)
   ========================================================================== */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .hero-content h1 {
    font-size: 2.6rem;
  }
  
  .hero-desc {
    margin-left: auto;
    margin-right: auto;
  }
  
  .hero-actions {
    justify-content: center;
  }
  
  .network-dashboard-wrapper {
    height: 380px;
  }
  
  .footer-top {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }
  
  .mobile-menu-btn {
    display: block;
  }
  
  .hero-content h1 {
    font-size: 2.1rem;
  }
  
  .hero-stats {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  
  .pricing-row {
    grid-template-columns: repeat(4, 280px);
  }
  
  .footer-top {
    grid-template-columns: 1fr;
  }

  .modal-container {
    padding: 1.5rem;
  }
}