/* ==========================================================================
   泰山 (Taishan) - 极简原生 CSS 样式表（浅色清新主题）
   纯 CSS 实现，零外部依赖，支持响应式单栏适配与高对比度视觉体验
   ========================================================================== */

:root {
  --bg-primary: #ffffff;
  --bg-secondary: #f8fafc;
  --bg-card: #ffffff;
  --bg-card-hover: #f8fafc;
  --border-color: #e2e8f0;
  --border-accent: rgba(2, 132, 199, 0.35);
  --text-primary: #0f172a;
  --text-secondary: #334155;
  --text-muted: #64748b;
  --accent-primary: #0284c7;
  --accent-secondary: #059669;
  --accent-gold: #d97706;
  --btn-gradient: linear-gradient(135deg, #0284c7 0%, #2563eb 100%);
  --btn-gradient-hover: linear-gradient(135deg, #0ea5e9 0%, #1d4ed8 100%);
  --shadow-sm: 0 2px 8px -2px rgba(15, 23, 42, 0.06),
    0 1px 3px rgba(15, 23, 42, 0.04);
  --shadow-lg: 0 20px 36px -14px rgba(15, 23, 42, 0.12);
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --max-width: 1140px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB",
    "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.65;
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

ul,
ol {
  list-style: none;
}

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* 顶部导航栏 */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 70px;
  gap: 16px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  color: var(--text-primary);
}

.brand-icon {
  width: 34px;
  height: 34px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  background: var(--btn-gradient);
  color: #ffffff;
  font-size: 1.08rem;
  font-weight: 800;
  line-height: 1;
  flex-shrink: 0;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-links a {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color 0.2s ease;
}

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

.nav-links a.active {
  font-weight: 600;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* 按钮规范：高对比度、大触控热区 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 46px;
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  font-size: 0.98rem;
  font-weight: 600;
  line-height: 1.2;
  cursor: pointer;
  transition: transform 0.18s ease, box-shadow 0.2s ease, background 0.2s ease,
    border-color 0.2s ease;
  text-align: center;
  white-space: nowrap;
}

.btn-sm {
  min-height: 42px;
  padding: 10px 18px;
  font-size: 0.92rem;
}

.btn-primary {
  background: var(--btn-gradient);
  color: #ffffff;
  border: 1px solid transparent;
  box-shadow: 0 8px 20px -6px rgba(2, 132, 199, 0.45);
}

.btn-primary:hover {
  background: var(--btn-gradient-hover);
  transform: translateY(-2px);
  box-shadow: 0 12px 24px -6px rgba(37, 99, 235, 0.5);
}

.btn-outline {
  background-color: #ffffff;
  color: var(--text-primary);
  border: 1px solid #cbd5e1;
}

.btn-outline:hover {
  background-color: #f1f5f9;
  border-color: var(--accent-primary);
  color: var(--accent-primary);
}

.btn-block {
  width: 100%;
}

/* 主视觉区 Hero */
.hero {
  position: relative;
  padding: 88px 0 72px;
  background: radial-gradient(
      circle at 50% 0%,
      rgba(2, 132, 199, 0.1) 0%,
      rgba(248, 250, 252, 0) 62%
    ),
    var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
}

.hero-content {
  max-width: 820px;
  margin: 0 auto;
  text-align: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  margin-bottom: 24px;
  border-radius: 999px;
  background-color: rgba(2, 132, 199, 0.08);
  border: 1px solid rgba(2, 132, 199, 0.24);
  color: var(--accent-primary);
  font-size: 0.88rem;
  font-weight: 600;
}

.hero-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--accent-secondary);
  box-shadow: 0 0 6px rgba(5, 150, 105, 0.5);
}

.hero h1 {
  font-size: 3.1rem;
  font-weight: 800;
  line-height: 1.22;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
  color: var(--text-primary);
}

.hero h1 span {
  background: linear-gradient(120deg, #0284c7 0%, #059669 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--text-secondary);
  max-width: 680px;
  margin: 0 auto 36px;
}

.hero-cta-group {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 52px;
}

.hero-cta-group .btn {
  min-height: 52px;
  padding: 14px 32px;
  font-size: 1.05rem;
}

.hero-media {
  max-width: 920px;
  margin: 0 auto 32px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-lg);
  background-color: #e2e8f0;
}

.hero-media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  padding: 24px;
  border-radius: var(--radius-md);
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
}

.stat-item {
  text-align: center;
  padding: 4px 8px;
}

.stat-value {
  display: block;
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--accent-primary);
  margin-bottom: 4px;
}

.stat-label {
  font-size: 0.88rem;
  color: var(--text-muted);
}

/* 通用区块样式 */
.section {
  padding: 80px 0;
  background-color: var(--bg-primary);
}

.section-alt {
  background-color: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 48px;
}

.section-tag {
  display: inline-block;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-primary);
  margin-bottom: 10px;
}

.section-title {
  font-size: 2.15rem;
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.section-desc {
  font-size: 1.02rem;
  color: var(--text-muted);
}

/* 核心优势网格 */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

.card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 28px;
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s ease, border-color 0.2s ease,
    box-shadow 0.2s ease;
}

.card:hover {
  transform: translateY(-3px);
  border-color: var(--border-accent);
  box-shadow: var(--shadow-lg);
}

.card-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background-color: rgba(2, 132, 199, 0.1);
  color: var(--accent-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
}

.card-icon.green {
  background-color: rgba(5, 150, 105, 0.1);
  color: var(--accent-secondary);
}

.card h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text-primary);
}

.card p {
  font-size: 0.96rem;
  color: var(--text-secondary);
}

/* 流媒体与 AI 支持 */
.unlock-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.unlock-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 16px;
}

.unlock-header h3 {
  margin-bottom: 0;
  font-size: 1.32rem;
}

.pill-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 20px 0 22px;
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  border-radius: 999px;
  background-color: #f1f5f9;
  border: 1px solid var(--border-color);
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-primary);
}

.pill::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: var(--accent-secondary);
}

.unlock-note {
  padding-top: 16px;
  border-top: 1px solid var(--border-color);
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* 套餐价格卡片 + 对比表 */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 48px;
  align-items: stretch;
}

.pricing-card {
  position: relative;
  display: flex;
  flex-direction: column;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 32px 26px;
  box-shadow: var(--shadow-sm);
}

.pricing-card.featured {
  border-color: var(--accent-primary);
  background: linear-gradient(
    180deg,
    rgba(2, 132, 199, 0.05) 0%,
    #ffffff 100%
  );
  box-shadow: var(--shadow-lg);
}

.popular-badge {
  position: absolute;
  top: -13px;
  right: 24px;
  background: var(--btn-gradient);
  color: #ffffff;
  font-size: 0.78rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 999px;
}

.plan-name {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 6px;
  color: var(--text-primary);
}

.plan-subtitle {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 20px;
}

.plan-price {
  display: flex;
  align-items: baseline;
  gap: 4px;
  margin-bottom: 22px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border-color);
}

.plan-currency {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--accent-primary);
}

.plan-amount {
  font-size: 2.5rem;
  font-weight: 800;
  line-height: 1;
  color: var(--text-primary);
}

.plan-period {
  font-size: 0.92rem;
  color: var(--text-muted);
}

.plan-features {
  flex: 1;
  margin-bottom: 26px;
}

.plan-features li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-bottom: 12px;
}

.check-icon {
  color: var(--accent-secondary);
  font-weight: 700;
  flex-shrink: 0;
}

/* 套餐对比表格 */
.table-wrapper {
  width: 100%;
  overflow-x: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  background-color: var(--bg-card);
  box-shadow: var(--shadow-sm);
}

.compare-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 640px;
  text-align: left;
}

.compare-table th,
.compare-table td {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-color);
  font-size: 0.95rem;
}

.compare-table th {
  background-color: #f1f5f9;
  font-weight: 700;
  color: var(--text-primary);
}

.compare-table td {
  color: var(--text-secondary);
}

.compare-table tr:last-child td {
  border-bottom: none;
}

.compare-table .highlight-col {
  color: var(--accent-primary);
  font-weight: 600;
}

.pricing-footnote {
  text-align: center;
  margin-top: 18px;
  font-size: 0.88rem;
  color: var(--text-muted);
}

/* 用户评价 */
.review-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.stars {
  color: var(--accent-gold);
  font-size: 1rem;
  letter-spacing: 2px;
  margin-bottom: 14px;
}

.review-text {
  font-size: 0.96rem;
  color: var(--text-secondary);
  margin-bottom: 20px;
}

.review-author {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-top: 16px;
  border-top: 1px solid var(--border-color);
}

.avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, #e0f2fe 0%, #bae6fd 100%);
  border: 1px solid rgba(2, 132, 199, 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: var(--accent-primary);
  flex-shrink: 0;
}

.author-name {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
}

.author-role {
  font-size: 0.82rem;
  color: var(--text-muted);
}

/* 常见问题解答 FAQ (纯原生 details/summary) */
.faq-list {
  max-width: 820px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.faq-item {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: border-color 0.2s ease;
}

.faq-item[open] {
  border-color: var(--border-accent);
}

.faq-item summary {
  list-style: none;
  padding: 20px 24px;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-primary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: "+";
  font-size: 1.4rem;
  font-weight: 400;
  color: var(--accent-primary);
  line-height: 1;
  transition: transform 0.2s ease;
}

.faq-item[open] summary::after {
  content: "−";
}

.faq-answer {
  padding: 14px 24px 20px;
  font-size: 0.96rem;
  color: var(--text-secondary);
  border-top: 1px solid #f1f5f9;
}

/* 底部行动号召 */
.cta-banner {
  background: linear-gradient(
    135deg,
    rgba(2, 132, 199, 0.08) 0%,
    rgba(5, 150, 105, 0.08) 100%
  );
  border: 1px solid var(--border-accent);
  border-radius: var(--radius-lg);
  padding: 48px 32px;
  text-align: center;
}

.cta-banner h2 {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.cta-banner p {
  font-size: 1.04rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 28px;
}

/* 页脚：严格仅保留四个标题链接，打开新页面展示 */
.site-footer {
  background-color: #f1f5f9;
  border-top: 1px solid var(--border-color);
  padding: 36px 0;
}

.footer-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 36px;
}

.footer-nav a {
  font-size: 0.98rem;
  font-weight: 600;
  color: var(--text-secondary);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  transition: color 0.2s ease, background-color 0.2s ease;
}

.footer-nav a:hover {
  color: var(--accent-primary);
  background-color: rgba(2, 132, 199, 0.08);
}

/* 子页面（关于我们 / 服务条款 / 隐私政策 / 网站地图）排版 */
.subpage-main {
  padding: 64px 0 88px;
  min-height: calc(100vh - 170px);
  background-color: var(--bg-secondary);
}

.article-box {
  max-width: 840px;
  margin: 0 auto;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-sm);
}

.article-box h1 {
  font-size: 2.1rem;
  font-weight: 800;
  margin-bottom: 10px;
  color: var(--text-primary);
}

.article-meta {
  font-size: 0.9rem;
  color: var(--text-muted);
  padding-bottom: 24px;
  margin-bottom: 28px;
  border-bottom: 1px solid var(--border-color);
}

.article-section {
  margin-bottom: 30px;
}

.article-section:last-child {
  margin-bottom: 0;
}

.article-section h2 {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--accent-primary);
  margin-bottom: 12px;
}

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

.article-list {
  padding-left: 20px;
  list-style: disc;
  color: var(--text-secondary);
}

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

.sitemap-links {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  margin-top: 12px;
}

.sitemap-links a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  border-radius: var(--radius-sm);
  background-color: #f8fafc;
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  font-weight: 500;
  transition: border-color 0.2s ease, color 0.2s ease, background-color 0.2s ease;
}

.sitemap-links a:hover {
  border-color: var(--accent-primary);
  color: var(--accent-primary);
  background-color: #f0f9ff;
}

/* ==========================================================================
   高科技网格卡片 (Grid Cards) - 推荐咨询 12 篇 SEO 专栏布局
   ========================================================================== */
.tech-section-head {
  margin-top: 44px;
  margin-bottom: 24px;
  padding-top: 32px;
  border-top: 1px solid var(--border-color);
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.tech-section-head h2 {
  font-size: 1.65rem;
  font-weight: 800;
  color: var(--text-primary);
}

.tech-section-head p {
  font-size: 0.94rem;
  color: var(--text-muted);
}

.tech-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  margin-top: 20px;
}

.tech-card {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: transform 0.22s ease, border-color 0.22s ease,
    box-shadow 0.22s ease;
}

.tech-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, #0284c7 0%, #2563eb 50%, #059669 100%);
  opacity: 0.85;
}

.tech-card:hover {
  transform: translateY(-4px);
  border-color: rgba(2, 132, 199, 0.48);
  box-shadow: 0 18px 34px -14px rgba(2, 132, 199, 0.22);
}

.tech-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 14px;
}

.tech-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 6px;
  background-color: rgba(2, 132, 199, 0.09);
  border: 1px solid rgba(2, 132, 199, 0.22);
  color: var(--accent-primary);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.03em;
}

.tech-index {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-muted);
}

.tech-card h3 {
  font-size: 1.08rem;
  font-weight: 700;
  line-height: 1.45;
  color: var(--text-primary);
  margin-bottom: 10px;
}

.tech-card h3 a:hover {
  color: var(--accent-primary);
}

.tech-card-excerpt {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 18px;
}

.tech-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-top: 14px;
  border-top: 1px dashed var(--border-color);
  font-size: 0.84rem;
  color: var(--text-muted);
}

.tech-read-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-weight: 700;
  color: var(--accent-primary);
  min-height: 36px;
  padding: 4px 10px;
  border-radius: 6px;
  background-color: rgba(2, 132, 199, 0.08);
  transition: background-color 0.2s ease, color 0.2s ease;
}

.tech-read-link:hover {
  background-color: var(--accent-primary);
  color: #ffffff;
}

/* SEO 文章内页正文与返回按钮 */
.seo-article-body p {
  color: var(--text-secondary);
  margin-bottom: 16px;
  line-height: 1.8;
  font-size: 1.01rem;
}

.seo-article-body h2 {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 28px 0 12px;
  padding-left: 12px;
  border-left: 4px solid var(--accent-primary);
}

.seo-article-body h3 {
  font-size: 1.12rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 20px 0 10px;
}

.seo-article-body ul,
.seo-article-body ol {
  padding-left: 22px;
  margin-bottom: 18px;
  color: var(--text-secondary);
}

.seo-article-body ul {
  list-style: disc;
}

.seo-article-body ol {
  list-style: decimal;
}

.seo-article-body li {
  margin-bottom: 8px;
  line-height: 1.7;
}

.seo-article-body a {
  color: var(--accent-primary);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.seo-article-body a:hover {
  color: #1d4ed8;
}

.article-back-wrap {
  margin-top: 36px;
  padding-top: 24px;
  border-top: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 14px;
}

/* ==========================================================================
   响应式媒体查询 (@media)：确保手机端完美单栏显示，按钮适合手指点击
   ========================================================================== */

@media (max-width: 1060px) {
  .pricing-grid,
  .tech-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 960px) {
  .nav-inner {
    flex-wrap: wrap;
    padding: 10px 0;
  }

  .nav-links {
    order: 3;
    width: 100%;
    gap: 18px;
    padding-top: 10px;
    border-top: 1px solid var(--border-color);
    overflow-x: auto;
    white-space: nowrap;
    -webkit-overflow-scrolling: touch;
  }

  .grid-3 {
    grid-template-columns: 1fr;
  }

  .hero-stats {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .container {
    padding: 0 18px;
  }

  .nav-inner {
    min-height: 64px;
  }

  .nav-actions .btn-outline {
    display: none;
  }

  .hero {
    padding: 56px 0 48px;
  }

  .hero h1 {
    font-size: 2rem;
  }

  .hero-subtitle {
    font-size: 1rem;
    margin-bottom: 28px;
  }

  .hero-cta-group {
    flex-direction: column;
    width: 100%;
    gap: 12px;
    margin-bottom: 36px;
  }

  .hero-cta-group .btn {
    width: 100%;
    min-height: 52px;
  }

  .hero-stats {
    grid-template-columns: 1fr;
    gap: 12px;
    padding: 18px;
  }

  .stat-item {
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 10px;
  }

  .stat-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
  }

  .section {
    padding: 56px 0;
  }

  .section-title {
    font-size: 1.65rem;
  }

  .grid-2,
  .grid-3,
  .pricing-grid,
  .tech-grid,
  .sitemap-links {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .article-back-wrap .btn {
    width: 100%;
  }

  .card,
  .pricing-card {
    padding: 24px 20px;
  }

  .btn {
    min-height: 50px;
    font-size: 1rem;
  }

  .cta-banner {
    padding: 36px 20px;
  }

  .cta-banner h2 {
    font-size: 1.55rem;
  }

  .cta-banner .btn {
    width: 100%;
  }

  .faq-item summary {
    padding: 18px;
    font-size: 1rem;
  }

  .faq-answer {
    padding: 12px 18px 18px;
  }

  .footer-nav {
    flex-direction: column;
    gap: 10px;
  }

  .footer-nav a {
    width: 100%;
    text-align: center;
    padding: 12px 16px;
  }

  .article-box {
    padding: 26px 20px;
  }

  .article-box h1 {
    font-size: 1.65rem;
  }
}