/* ==========================================================================
   Gatern - 官方极速网络加速落地页样式表
   纯原生 CSS 构建，零外部依赖，极速秒开体验，移动端优先响应式设计
   ========================================================================== */

:root {
  --bg-primary: #0a0e17;
  --bg-secondary: #111827;
  --bg-card: rgba(17, 24, 39, 0.75);
  --bg-card-hover: rgba(30, 41, 59, 0.85);
  --border-color: rgba(255, 255, 255, 0.08);
  --border-highlight: rgba(99, 102, 241, 0.35);
  
  --primary: #6366f1;
  --primary-hover: #4f46e5;
  --primary-glow: rgba(99, 102, 241, 0.4);
  --accent-cyan: #06b6d4;
  --accent-emerald: #10b981;
  --accent-amber: #f59e0b;
  
  --text-main: #f3f4f6;
  --text-muted: #9ca3af;
  --text-dim: #6b7280;
  
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 9999px;
  
  --shadow-card: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 25px -5px var(--primary-glow);
  --transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

/* 基础重置 */
*, *::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: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-main);
  line-height: 1.6;
  overflow-x: hidden;
  background-image: 
    radial-gradient(circle at 15% 15%, rgba(99, 102, 241, 0.12) 0%, transparent 45%),
    radial-gradient(circle at 85% 65%, rgba(6, 182, 212, 0.09) 0%, transparent 40%),
    radial-gradient(circle at 50% 90%, rgba(16, 185, 129, 0.06) 0%, transparent 50%);
  background-attachment: fixed;
}

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

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

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* 头部导航栏 */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 14, 23, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-color);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  color: #ffffff;
}

.brand-icon {
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, var(--primary), var(--accent-cyan));
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 18px;
  box-shadow: 0 0 12px var(--primary-glow);
}

.brand-badge {
  font-size: 0.75rem;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  background: rgba(99, 102, 241, 0.2);
  color: #a5b4fc;
  border: 1px solid rgba(99, 102, 241, 0.4);
  font-weight: 600;
}

.nav-menu {
  display: none;
  list-style: none;
  gap: 28px;
  font-size: 0.95rem;
  color: var(--text-muted);
}

.nav-menu a:hover {
  color: #ffffff;
}

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

/* 按钮通用组件 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: var(--transition);
  text-align: center;
  white-space: nowrap;
  border: 1px solid transparent;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), #4338ca);
  color: #ffffff;
  box-shadow: 0 4px 18px var(--primary-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(99, 102, 241, 0.6);
  background: linear-gradient(135deg, #7175f8, #4f46e5);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-main);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
}

.btn-sm {
  padding: 8px 18px;
  font-size: 0.88rem;
}

.btn-lg {
  padding: 15px 32px;
  font-size: 1.05rem;
}

.btn-block {
  width: 100%;
}

/* 主视觉区 (Hero Section) */
.hero-section {
  padding: 60px 0 80px;
  position: relative;
}

.hero-grid {
  display: flex;
  flex-direction: column;
  gap: 40px;
  align-items: center;
}

.hero-content {
  width: 100%;
  text-align: center;
}

.pill-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: var(--radius-full);
  background: rgba(99, 102, 241, 0.12);
  border: 1px solid rgba(99, 102, 241, 0.35);
  font-size: 0.85rem;
  color: #c7d2fe;
  margin-bottom: 24px;
}

.pill-dot {
  width: 8px;
  height: 8px;
  background: var(--accent-emerald);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--accent-emerald);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7); }
  70% { transform: scale(1.1); box-shadow: 0 0 0 8px rgba(16, 185, 129, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

.hero-title {
  font-size: 2.25rem;
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: 20px;
  letter-spacing: -0.5px;
}

.text-gradient {
  background: linear-gradient(135deg, #ffffff 30%, #a5b4fc 70%, var(--accent-cyan) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 620px;
  margin: 0 auto 32px;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  flex-direction: column;
  gap: 14px;
  justify-content: center;
  margin-bottom: 36px;
}

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  padding-top: 24px;
  border-top: 1px solid var(--border-color);
  max-width: 580px;
  margin: 0 auto;
}

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

.metric-value {
  font-size: 1.45rem;
  font-weight: 800;
  color: #ffffff;
  display: block;
}

.metric-label {
  font-size: 0.8rem;
  color: var(--text-dim);
}

/* 主视觉区动态图卡 (Hero Visual Card) */
.hero-visual {
  width: 100%;
  max-width: 480px;
  margin: 0 auto;
}

.dashboard-card {
  background: linear-gradient(145deg, rgba(26, 34, 53, 0.8), rgba(15, 23, 42, 0.9));
  border: 1px solid var(--border-highlight);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: 0 20px 40px -15px rgba(0, 0, 0, 0.7), var(--shadow-glow);
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(12px);
}

.card-header-status {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--border-color);
}

.status-badge {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.82rem;
  color: var(--accent-emerald);
  font-weight: 600;
  background: rgba(16, 185, 129, 0.1);
  padding: 4px 10px;
  border-radius: var(--radius-full);
}

.node-selector {
  font-size: 0.82rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 6px;
}

.speedometer {
  text-align: center;
  padding: 20px 0 10px;
  position: relative;
}

.speed-display {
  font-size: 3.2rem;
  font-weight: 900;
  color: #ffffff;
  line-height: 1;
  font-feature-settings: "tnum";
  font-variant-numeric: tabular-nums;
  background: linear-gradient(180deg, #ffffff, #a5b4fc);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.speed-unit {
  font-size: 0.95rem;
  color: var(--text-muted);
  margin-top: 4px;
  display: block;
}

.speed-ping-row {
  display: flex;
  justify-content: space-around;
  margin-top: 24px;
  padding: 14px;
  background: rgba(0, 0, 0, 0.25);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
}

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

.ping-val {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--accent-cyan);
}

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

.live-wave {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  height: 24px;
  margin-top: 18px;
}

.wave-bar {
  width: 4px;
  background: var(--primary);
  border-radius: 2px;
  animation: wave 1.2s infinite ease-in-out;
}

.wave-bar:nth-child(1) { height: 8px; animation-delay: 0.0s; }
.wave-bar:nth-child(2) { height: 16px; animation-delay: 0.2s; }
.wave-bar:nth-child(3) { height: 22px; animation-delay: 0.4s; }
.wave-bar:nth-child(4) { height: 14px; animation-delay: 0.1s; }
.wave-bar:nth-child(5) { height: 24px; animation-delay: 0.3s; }
.wave-bar:nth-child(6) { height: 18px; animation-delay: 0.5s; }
.wave-bar:nth-child(7) { height: 10px; animation-delay: 0.2s; }

@keyframes wave {
  0%, 100% { transform: scaleY(0.4); opacity: 0.4; }
  50% { transform: scaleY(1); opacity: 1; }
}

/* 核心优势板块 */
.section {
  padding: 80px 0;
  border-top: 1px solid var(--border-color);
}

.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 50px;
}

.section-tag {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--primary);
  margin-bottom: 12px;
}

.section-title {
  font-size: 1.85rem;
  font-weight: 800;
  margin-bottom: 14px;
  color: #ffffff;
}

.section-desc {
  font-size: 0.98rem;
  color: var(--text-muted);
}

.features-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.feature-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-highlight);
  background: var(--bg-card-hover);
  box-shadow: var(--shadow-card);
}

.feature-icon-wrap {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  margin-bottom: 22px;
}

.icon-purple {
  background: rgba(99, 102, 241, 0.15);
  border: 1px solid rgba(99, 102, 241, 0.3);
  color: #a5b4fc;
}

.icon-cyan {
  background: rgba(6, 182, 212, 0.15);
  border: 1px solid rgba(6, 182, 212, 0.3);
  color: #67e8f9;
}

.icon-emerald {
  background: rgba(16, 185, 129, 0.15);
  border: 1px solid rgba(16, 185, 129, 0.3);
  color: #6ee7b7;
}

.feature-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: #ffffff;
}

.feature-text {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 20px;
}

.feature-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.feature-list li {
  font-size: 0.88rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 8px;
}

.feature-list li svg {
  color: var(--accent-emerald);
  flex-shrink: 0;
}

/* 流媒体与 AI 支持图卡 */
.media-ai-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

.media-card {
  background: linear-gradient(145deg, rgba(20, 27, 45, 0.7), rgba(15, 23, 42, 0.9));
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  transition: var(--transition);
}

.media-card:hover {
  border-color: var(--border-highlight);
  box-shadow: var(--shadow-card);
}

.media-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 18px;
}

.media-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
}

.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 20px;
}

.tag-pill {
  padding: 6px 14px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  font-size: 0.82rem;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 6px;
}

.tag-pill.hot {
  border-color: rgba(99, 102, 241, 0.4);
  background: rgba(99, 102, 241, 0.12);
  color: #c7d2fe;
}

/* 价格套餐板块 */
.pricing-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

.pricing-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  position: relative;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.pricing-card.popular {
  border-color: var(--primary);
  background: linear-gradient(180deg, rgba(99, 102, 241, 0.12) 0%, rgba(17, 24, 39, 0.85) 100%);
  box-shadow: 0 10px 30px -5px rgba(99, 102, 241, 0.3);
}

.popular-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, var(--primary), var(--accent-cyan));
  color: #ffffff;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 16px;
  border-radius: var(--radius-full);
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.plan-name {
  font-size: 1.3rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 6px;
}

.plan-desc {
  font-size: 0.85rem;
  color: var(--text-dim);
  margin-bottom: 20px;
}

.plan-price-wrap {
  margin-bottom: 24px;
  display: flex;
  align-items: baseline;
  gap: 4px;
}

.plan-currency {
  font-size: 1.35rem;
  font-weight: 700;
  color: #ffffff;
}

.plan-price {
  font-size: 2.8rem;
  font-weight: 900;
  color: #ffffff;
  line-height: 1;
}

.plan-period {
  font-size: 0.9rem;
  color: var(--text-dim);
}

.plan-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 30px;
  flex-grow: 1;
}

.plan-features li {
  font-size: 0.9rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 10px;
}

.plan-features li svg {
  color: var(--accent-emerald);
  flex-shrink: 0;
}

/* 9篇 SEO 文章板块 (图卡形式位于价格板块下方) */
.articles-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

.article-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: var(--transition);
  position: relative;
}

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

.article-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.78rem;
  color: var(--text-dim);
  margin-bottom: 12px;
}

.article-tag {
  background: rgba(99, 102, 241, 0.15);
  color: #a5b4fc;
  padding: 2px 10px;
  border-radius: var(--radius-full);
  font-weight: 600;
}

.article-title {
  font-size: 1.12rem;
  font-weight: 700;
  line-height: 1.45;
  color: #ffffff;
  margin-bottom: 10px;
}

.article-excerpt {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 18px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.article-link {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.article-link:hover {
  color: #a5b4fc;
  gap: 9px;
}

/* 用户评价板块 */
.reviews-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.review-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 24px;
}

.review-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}

.user-info {
  display: flex;
  align-items: center;
  gap: 12px;
}

.user-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, #4f46e5, #06b6d4);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.9rem;
  color: #ffffff;
}

.user-name {
  font-size: 0.95rem;
  font-weight: 700;
  color: #ffffff;
}

.user-role {
  font-size: 0.78rem;
  color: var(--text-dim);
}

.review-stars {
  color: var(--accent-amber);
  font-size: 0.9rem;
  letter-spacing: 2px;
}

.review-text {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* 常见问题 (FAQ) */
.faq-wrap {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

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

.faq-item[open] {
  border-color: var(--border-highlight);
  background: var(--bg-card-hover);
}

.faq-question {
  padding: 20px 24px;
  font-size: 1.02rem;
  font-weight: 600;
  color: #ffffff;
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

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

.faq-question::after {
  content: "+";
  font-size: 1.4rem;
  font-weight: 300;
  color: var(--primary);
  transition: var(--transition);
}

.faq-item[open] .faq-question::after {
  transform: rotate(45deg);
}

.faq-answer {
  padding: 0 24px 22px;
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.7;
}

/* 页脚 (Footer) - 严格满足要求 */
.site-footer {
  border-top: 1px solid var(--border-color);
  background: #070a10;
  padding: 50px 0 35px;
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 32px;
  margin-bottom: 30px;
}

.footer-link {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-muted);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.footer-link:hover {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.05);
}

/* 页脚 PBN 友好外链与版权 */
.footer-pbn-section {
  text-align: center;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.pbn-links-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 16px;
  margin-bottom: 16px;
  font-size: 0.9rem;
}

.pbn-label {
  color: var(--text-dim);
  font-weight: 500;
}

/* PBN 链接显色处理，醒目且不影响美观，严格保持 dofollow */
.pbn-link {
  color: #38bdf8;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  background: rgba(56, 189, 248, 0.08);
  border: 1px solid rgba(56, 189, 248, 0.2);
  transition: var(--transition);
}

.pbn-link:hover {
  color: #ffffff;
  background: rgba(56, 189, 248, 0.25);
  border-color: #38bdf8;
  box-shadow: 0 0 12px rgba(56, 189, 248, 0.3);
}

.pbn-link.link-cyan {
  color: #22d3ee;
  border-color: rgba(34, 211, 238, 0.25);
  background: rgba(34, 211, 238, 0.08);
}

.pbn-link.link-indigo {
  color: #818cf8;
  border-color: rgba(129, 140, 248, 0.25);
  background: rgba(129, 140, 248, 0.08);
}

.copyright-text {
  font-size: 0.82rem;
  color: var(--text-dim);
}

/* 文章详情页通用样式 */
.article-page {
  padding: 50px 0 80px;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.88rem;
  color: var(--text-dim);
  margin-bottom: 30px;
}

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

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

.article-content-wrap {
  max-width: 860px;
  margin: 0 auto;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 36px 24px;
}

.post-header {
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 24px;
  margin-bottom: 32px;
}

.post-title {
  font-size: 1.85rem;
  font-weight: 800;
  line-height: 1.35;
  color: #ffffff;
  margin-bottom: 16px;
}

.post-meta-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 0.85rem;
  color: var(--text-dim);
}

.post-body {
  font-size: 1.02rem;
  color: #d1d5db;
  line-height: 1.85;
}

.post-body h2 {
  font-size: 1.45rem;
  color: #ffffff;
  margin: 40px 0 18px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border-color);
}

.post-body h3 {
  font-size: 1.2rem;
  color: #f3f4f6;
  margin: 28px 0 14px;
}

.post-body p {
  margin-bottom: 20px;
}

.post-body ul, .post-body ol {
  margin: 0 0 24px 24px;
}

.post-body li {
  margin-bottom: 8px;
}

.post-body a {
  color: #38bdf8;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.post-body a:hover {
  color: #7dd3fc;
}

.post-body blockquote {
  border-left: 4px solid var(--primary);
  background: rgba(99, 102, 241, 0.08);
  padding: 16px 20px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin: 24px 0;
  color: #e0e7ff;
}

.post-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 28px 0;
  font-size: 0.92rem;
}

.post-body th, .post-body td {
  padding: 12px 14px;
  border: 1px solid var(--border-color);
  text-align: left;
}

.post-body th {
  background: rgba(255, 255, 255, 0.05);
  color: #ffffff;
  font-weight: 700;
}

.article-cta-box {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.15), rgba(6, 182, 212, 0.15));
  border: 1px solid rgba(99, 102, 241, 0.35);
  border-radius: var(--radius-md);
  padding: 28px;
  text-align: center;
  margin: 36px 0;
}

/* 响应式断点 (移动端优先扩展) */
@media (min-width: 640px) {
  .hero-actions {
    flex-direction: row;
  }
  
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .media-ai-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .articles-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .reviews-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 900px) {
  .nav-menu {
    display: flex;
  }
  
  .hero-grid {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
  
  .hero-content {
    text-align: left;
    max-width: 600px;
  }
  
  .hero-subtitle {
    margin: 0 0 32px 0;
  }
  
  .hero-actions {
    justify-content: flex-start;
  }
  
  .hero-metrics {
    margin: 0;
  }
  
  .features-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .pricing-grid {
    grid-template-columns: repeat(4, 1fr);
  }
  
  .articles-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .article-content-wrap {
    padding: 48px;
  }
  
  .hero-title {
    font-size: 3rem;
  }
}