/* 
  Editorial Tech / 暖白编辑式科技风 样式表
  Brand: 快雷GO 网络加速器 / 代理服务
*/

:root {
  --bg-main: #F7F5F0;          /* 暖白主背景 */
  --bg-card: #FFFFFF;          /* 纯白卡片背景 */
  --bg-subtle: #EFECE6;        /* 辅助浅暖灰背景 */
  --bg-highlight: #F1ECE3;     /* 局部高亮背景 */
  
  --text-primary: #17252D;     /* 深海蓝黑 */
  --text-secondary: #61717A;   /* 灰蓝 */
  --text-muted: #8E9EA7;       /* 浅灰蓝 */
  
  --accent-terracotta: #C86B4A;/* 陶土橙 */
  --accent-terracotta-hover: #B25939;
  --accent-terracotta-light: #F9EFEB;
  
  --accent-sage: #789083;      /* 鼠尾草绿 */
  --accent-sage-dark: #586F63;
  --accent-sage-light: #EEF2F0;
  
  --border-color: #E6E2DA;     /* 浅暖灰边框 */
  --border-strong: #D4CEBF;    /* 强调边框 */
  
  --shadow-sm: 0 2px 8px rgba(23, 37, 45, 0.03);
  --shadow-md: 0 10px 30px rgba(23, 37, 45, 0.05);
  --shadow-lg: 0 20px 45px rgba(23, 37, 45, 0.08);
  
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --radius-full: 9999px;
  
  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;

  --max-width: 1240px;
  --header-height: 76px;
}

/* Reset & Base */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  background-color: var(--bg-main);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 1.05rem; /* 比常见模板大5% */
  line-height: 1.68;
  letter-spacing: 0.01em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

a {
  color: var(--accent-terracotta);
  text-decoration: none;
  transition: color 0.2s ease, opacity 0.2s ease;
}

a:hover {
  color: var(--accent-terracotta-hover);
}

ul, ol {
  list-style: none;
}

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
}

/* Layout Utilities */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}

.section-padding {
  padding-top: 80px;
  padding-bottom: 80px;
}

@media (max-width: 768px) {
  .section-padding {
    padding-top: 50px;
    padding-bottom: 50px;
  }
  .container {
    padding-left: 18px;
    padding-right: 18px;
  }
}

/* Header & Nav */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: rgba(247, 245, 240, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  height: var(--header-height);
  display: flex;
  align-items: center;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.logo-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.35rem;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

.logo-icon {
  width: 34px;
  height: 34px;
  background: var(--accent-terracotta);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 800;
  font-size: 1.1rem;
  box-shadow: 0 4px 12px rgba(200, 107, 74, 0.25);
}

.logo-badge {
  font-size: 0.72rem;
  font-weight: 600;
  padding: 2px 8px;
  background-color: var(--accent-sage-light);
  color: var(--accent-sage-dark);
  border-radius: var(--radius-full);
  margin-left: 4px;
}

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

.nav-link {
  color: var(--text-secondary);
  font-size: 0.98rem;
  font-weight: 500;
  transition: color 0.2s;
}

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

.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

/* Button Component */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  font-size: 0.98rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  transition: all 0.22s cubic-bezier(0.16, 1, 0.3, 1);
  cursor: pointer;
  border: 1px solid transparent;
  white-space: nowrap;
}

.btn-primary {
  background-color: var(--accent-terracotta);
  color: #FFFFFF;
  box-shadow: 0 4px 14px rgba(200, 107, 74, 0.28);
}

.btn-primary:hover {
  background-color: var(--accent-terracotta-hover);
  color: #FFFFFF;
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(200, 107, 74, 0.35);
}

.btn-secondary {
  background-color: var(--bg-card);
  color: var(--text-primary);
  border-color: var(--border-color);
  box-shadow: var(--shadow-sm);
}

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

.btn-outline {
  background-color: transparent;
  color: var(--text-primary);
  border-color: var(--border-color);
}

.btn-outline:hover {
  border-color: var(--accent-terracotta);
  color: var(--accent-terracotta);
}

.btn-sm {
  padding: 8px 16px;
  font-size: 0.9rem;
  border-radius: 6px;
}

.btn-lg {
  padding: 15px 32px;
  font-size: 1.08rem;
  border-radius: 10px;
}

/* Mobile Nav Drawer */
.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
  color: var(--text-primary);
}

@media (max-width: 1024px) {
  .main-nav {
    display: none;
  }
  .mobile-menu-btn {
    display: block;
  }
}

.mobile-drawer {
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--bg-main);
  z-index: 999;
  padding: 24px;
  display: none;
  flex-direction: column;
  gap: 20px;
  overflow-y: auto;
  border-top: 1px solid var(--border-color);
}

.mobile-drawer.open {
  display: flex;
}

.mobile-nav-link {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text-primary);
  padding: 12px 0;
  border-bottom: 1px solid var(--border-color);
}

/* Typography & Section Titles */
.section-tag {
  display: inline-block;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-terracotta);
  background-color: var(--accent-terracotta-light);
  padding: 4px 12px;
  border-radius: var(--radius-full);
  margin-bottom: 14px;
}

.section-tag-sage {
  color: var(--accent-sage-dark);
  background-color: var(--accent-sage-light);
}

.section-title {
  font-size: 2.25rem;
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  margin-bottom: 16px;
}

.section-desc {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 680px;
  margin-bottom: 40px;
}

@media (max-width: 768px) {
  .section-title {
    font-size: 1.75rem;
  }
  .section-desc {
    font-size: 1rem;
    margin-bottom: 28px;
  }
}

/* Hero Section */
.hero-section {
  padding-top: 60px;
  padding-bottom: 80px;
  position: relative;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}

@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
}

.hero-content h1 {
  font-size: 3rem;
  font-weight: 800;
  line-height: 1.18;
  letter-spacing: -0.035em;
  color: var(--text-primary);
  margin-bottom: 20px;
}

.hero-content h1 span.highlight {
  color: var(--accent-terracotta);
  position: relative;
}

.hero-lead {
  font-size: 1.18rem;
  color: var(--text-secondary);
  margin-bottom: 32px;
  line-height: 1.7;
}

.hero-ctas {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 36px;
}

.hero-highlights {
  display: flex;
  align-items: center;
  gap: 24px;
  padding-top: 24px;
  border-top: 1px solid var(--border-color);
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.highlight-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 500;
}

.highlight-item svg {
  color: var(--accent-sage);
}

@media (max-width: 768px) {
  .hero-content h1 {
    font-size: 2.15rem;
  }
  .hero-lead {
    font-size: 1.05rem;
  }
  .hero-highlights {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }
}

/* Dashboard Mockup (Hero Right) */
.hero-dashboard {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-lg);
  position: relative;
}

.dashboard-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 20px;
}

.dashboard-dots {
  display: flex;
  gap: 6px;
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background-color: var(--border-color);
}

.dot.red { background-color: #E57373; }
.dot.yellow { background-color: #FFB74D; }
.dot.green { background-color: #81C784; }

.dashboard-status {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--accent-sage-dark);
  background-color: var(--accent-sage-light);
  padding: 4px 10px;
  border-radius: var(--radius-full);
}

.status-pulse {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--accent-sage-dark);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(1.2); }
  100% { opacity: 1; transform: scale(1); }
}

.dashboard-body {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.node-selector-card {
  background: var(--bg-main);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 16px;
}

.node-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  margin-bottom: 8px;
  border: 1px solid var(--border-color);
}

.node-row:last-child {
  margin-bottom: 0;
}

.node-row.active {
  border-color: var(--accent-terracotta);
  background-color: var(--accent-terracotta-light);
}

.node-info {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.92rem;
  font-weight: 600;
}

.node-flag {
  font-size: 1.1rem;
}

.node-tag {
  font-size: 0.75rem;
  padding: 2px 6px;
  background: #EFECE6;
  border-radius: 4px;
  color: var(--text-secondary);
}

.node-ping {
  font-size: 0.85rem;
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--accent-sage-dark);
}

.scenario-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 8px;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  padding: 5px 10px;
  border-radius: var(--radius-sm);
  background-color: var(--bg-main);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  font-weight: 500;
}

.chip.active {
  background-color: var(--text-primary);
  color: #fff;
  border-color: var(--text-primary);
}

/* Bento Grid Layout (Core Advantages) */
.bento-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 24px;
}

.bento-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-sm);
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.bento-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--border-strong);
}

.bento-span-8 { grid-column: span 8; }
.bento-span-4 { grid-column: span 4; }
.bento-span-6 { grid-column: span 6; }
.bento-span-12 { grid-column: span 12; }

.bento-card-subtle {
  background: var(--bg-subtle);
  border: 1px solid var(--border-color);
}

.bento-card-accent {
  background: var(--text-primary);
  color: #FFFFFF;
  border: none;
}

.bento-card-accent .bento-title {
  color: #FFFFFF;
}

.bento-card-accent .bento-desc {
  color: #A9B7C0;
}

.bento-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: var(--accent-terracotta-light);
  color: var(--accent-terracotta);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.bento-card-accent .bento-icon {
  background: rgba(255, 255, 255, 0.1);
  color: var(--accent-terracotta);
}

.bento-title {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 12px;
}

.bento-desc {
  font-size: 0.98rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

.bento-feature-list {
  margin-top: 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.bento-feature-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.92rem;
  color: var(--text-primary);
}

.bento-card-accent .bento-feature-item {
  color: #DDE5EA;
}

@media (max-width: 1024px) {
  .bento-span-8, .bento-span-4, .bento-span-6 {
    grid-column: span 12;
  }
}

/* Node Network Section */
.network-list-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}

.node-region-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 24px;
  transition: border-color 0.2s;
}

.node-region-card:hover {
  border-color: var(--accent-terracotta);
}

.region-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.region-title {
  font-size: 1.15rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 8px;
}

.region-badge {
  font-size: 0.75rem;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 4px;
  background-color: var(--accent-sage-light);
  color: var(--accent-sage-dark);
}

.region-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.55;
}

/* AI & Streaming Section */
.scenario-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

@media (max-width: 768px) {
  .scenario-grid {
    grid-template-columns: 1fr;
  }
}

.scenario-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-sm);
}

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

.scenario-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: var(--accent-sage-light);
  color: var(--accent-sage-dark);
  display: flex;
  align-items: center;
  justify-content: center;
}

.scenario-title {
  font-size: 1.3rem;
  font-weight: 700;
}

.scenario-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}

.tag-item {
  font-size: 0.82rem;
  font-weight: 500;
  padding: 4px 10px;
  background: var(--bg-main);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
}

/* Pricing Plans Section */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  align-items: stretch;
}

@media (max-width: 1024px) {
  .pricing-grid {
    grid-template-columns: 1fr;
    max-width: 480px;
    margin-left: auto;
    margin-right: auto;
  }
}

.pricing-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
  box-shadow: var(--shadow-sm);
  transition: transform 0.25s, box-shadow 0.25s;
}

.pricing-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.pricing-card.featured {
  border: 2px solid var(--accent-terracotta);
  box-shadow: var(--shadow-md);
}

.featured-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--accent-terracotta);
  color: #fff;
  font-size: 0.78rem;
  font-weight: 700;
  padding: 4px 14px;
  border-radius: var(--radius-full);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.plan-name {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.plan-desc {
  font-size: 0.88rem;
  color: var(--text-secondary);
  margin-bottom: 24px;
  min-height: 40px;
}

.plan-price {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--text-primary);
  font-family: var(--font-mono);
  margin-bottom: 24px;
}

.plan-price span.unit {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-secondary);
  font-family: var(--font-body);
}

.plan-features {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 32px;
  border-top: 1px solid var(--border-color);
  padding-top: 20px;
}

.plan-feature {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.92rem;
  color: var(--text-primary);
}

.plan-feature svg {
  color: var(--accent-sage-dark);
  flex-shrink: 0;
}

.price-disclaimer {
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 24px;
}

/* Articles Grid Section */
.articles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

@media (max-width: 1024px) {
  .articles-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .articles-grid {
    grid-template-columns: 1fr;
  }
}

.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: border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

.article-card:hover {
  border-color: var(--accent-terracotta);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.article-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.article-category {
  color: var(--accent-terracotta);
  font-weight: 600;
  background: var(--accent-terracotta-light);
  padding: 2px 8px;
  border-radius: 4px;
}

.article-card-title {
  font-size: 1.12rem;
  font-weight: 700;
  line-height: 1.4;
  color: var(--text-primary);
  margin-bottom: 10px;
}

.article-card-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 20px;
}

.article-card-link {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--accent-terracotta);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

/* Testimonials Section */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

@media (max-width: 768px) {
  .testimonials-grid {
    grid-template-columns: 1fr;
  }
}

.testimonial-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;
}

.testimonial-body {
  font-size: 0.95rem;
  color: var(--text-primary);
  line-height: 1.65;
  margin-bottom: 20px;
  font-style: italic;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 12px;
}

.avatar-placeholder {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--accent-sage-light);
  color: var(--accent-sage-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.95rem;
}

.author-info h4 {
  font-size: 0.92rem;
  font-weight: 700;
}

.author-info p {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.demo-notice {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 8px;
}

/* FAQ Section */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  max-width: 860px;
  margin-left: auto;
  margin-right: auto;
}

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

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

.faq-summary {
  padding: 20px 24px;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  user-select: none;
  list-style: none;
}

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

.faq-icon {
  width: 20px;
  height: 20px;
  color: var(--text-secondary);
  transition: transform 0.2s ease;
}

.faq-item[open] .faq-icon {
  transform: rotate(180deg);
  color: var(--accent-terracotta);
}

.faq-content {
  padding: 0 24px 20px 24px;
  font-size: 0.96rem;
  color: var(--text-secondary);
  line-height: 1.7;
  border-top: 1px dashed var(--border-color);
  padding-top: 16px;
}

/* Article Detail Layout */
.article-page {
  padding-top: 40px;
  padding-bottom: 80px;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-bottom: 24px;
  flex-wrap: wrap;
}

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

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

.article-header {
  max-width: 820px;
  margin-bottom: 40px;
}

.article-header h1 {
  font-size: 2.4rem;
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  margin-bottom: 16px;
}

.article-post-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 0.88rem;
  color: var(--text-secondary);
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border-color);
}

.article-content {
  max-width: 820px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-sm);
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--text-primary);
}

@media (max-width: 768px) {
  .article-header h1 {
    font-size: 1.85rem;
  }
  .article-content {
    padding: 24px;
  }
}

.article-content h2 {
  font-size: 1.6rem;
  font-weight: 700;
  margin-top: 36px;
  margin-bottom: 16px;
  color: var(--text-primary);
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border-color);
}

.article-content h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-top: 24px;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.article-content p {
  margin-bottom: 18px;
}

.article-content ul, .article-content ol {
  margin-bottom: 20px;
  padding-left: 24px;
}

.article-content ul {
  list-style-type: disc;
}

.article-content ol {
  list-style-type: decimal;
}

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

.article-content blockquote {
  border-left: 4px solid var(--accent-terracotta);
  background: var(--bg-main);
  padding: 16px 20px;
  margin: 24px 0;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--text-secondary);
  font-style: italic;
}

.article-cta-box {
  background: var(--accent-terracotta-light);
  border: 1px solid rgba(200, 107, 74, 0.2);
  border-radius: var(--radius-md);
  padding: 28px;
  margin: 36px 0;
  text-align: center;
}

.article-cta-box h3 {
  font-size: 1.3rem;
  color: var(--accent-terracotta-hover);
  margin-top: 0;
  margin-bottom: 10px;
}

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

/* Related Articles Box */
.related-articles {
  max-width: 820px;
  margin-top: 48px;
}

.related-articles h3 {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 20px;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

@media (max-width: 640px) {
  .related-grid {
    grid-template-columns: 1fr;
  }
}

/* Footer Section */
.site-footer {
  background-color: var(--text-primary);
  color: #A9B7C0;
  padding-top: 60px;
  padding-bottom: 40px;
  font-size: 0.92rem;
  border-top: 1fr solid var(--border-color);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 40px;
  margin-bottom: 40px;
}

@media (max-width: 1024px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 640px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

.footer-brand h3 {
  color: #FFFFFF;
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.footer-brand p {
  line-height: 1.6;
  max-width: 320px;
  margin-bottom: 20px;
}

.footer-col h4 {
  color: #FFFFFF;
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 16px;
}

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

.footer-links a {
  color: #A9B7C0;
  transition: color 0.2s;
}

.footer-links a:hover {
  color: #FFFFFF;
}

.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 0.85rem;
}

.external-friends {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.external-friends span {
  color: #61717A;
}

.external-friends a {
  color: #8E9EA7;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.external-friends a:hover {
  color: var(--accent-terracotta);
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}