/* ====================================================================
   LinkCube绿叶 (linkcube.blog) 核心样式表
   规范：AG WEBSITE GENERATION SPECIFICATION 2026 VERSION 4.0
   设计模式：DEFAULT DESIGN FALLBACK (系统字体栈、克制高对比祖母绿科技配色)
   ==================================================================== */

:root {
  /* 基础与背景色彩体系 */
  --bg-body: #f8fafc;
  --bg-surface: #ffffff;
  --bg-subtle: #f1f5f9;
  --bg-highlight: #ecfdf5;
  
  /* 边框与分割线体系 */
  --border-color: #e2e8f0;
  --border-subtle: #cbd5e1;
  --border-focus: #10b981;
  
  /* 文字与排版色彩体系 (WCAG AAA 高对比度) */
  --text-main: #0f172a;       /* 高饱和深冷岩灰，接近黑色但更显柔和高级 */
  --text-secondary: #334155;  /* 正文与叙述文字 */
  --text-muted: #64748b;      /* 辅助信息、日期与标签 */
  
  /* 品牌主色系 (清新克制的祖母绿科技感) */
  --primary: #059669;
  --primary-hover: #047857;
  --primary-active: #065f46;
  --primary-light: #d1fae5;
  --primary-subtle: #ecfdf5;
  
  /* 功能状态与警告色彩 */
  --accent-amber: #d97706;
  --accent-blue: #2563eb;
  
  /* 圆角规范 (克制自然，避免夸张大圆角堆砌) */
  --radius-xs: 4px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  
  /* 阴影规范 (精细承载层级，杜绝模糊大脏影) */
  --shadow-sm: 0 1px 2px 0 rgba(15, 23, 42, 0.05);
  --shadow-card: 0 1px 3px 0 rgba(15, 23, 42, 0.08), 0 1px 2px -1px rgba(15, 23, 42, 0.08);
  --shadow-hover: 0 10px 15px -3px rgba(15, 23, 42, 0.08), 0 4px 6px -4px rgba(15, 23, 42, 0.04);
  
  /* 布局参数 */
  --max-width: 1140px;
  --header-height: 64px;
  
  /* 默认设计回退系统字体栈 (杜绝中文字体外链破坏 LCP) */
  --font-sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

/* 基础重置 */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font-sans);
  background-color: var(--bg-body);
  color: var(--text-main);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  padding-bottom: 72px; /* 为移动端吸底 CTA 留出空间 */
}

@media (min-width: 768px) {
  body {
    padding-bottom: 0;
  }
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color 0.15s ease, border-color 0.15s ease;
}

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

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

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

/* 无障碍聚焦环 */
:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

/* 容器规范 */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: 20px;
  padding-right: 20px;
}

/* ====================================================================
   全站导航栏 (Header)
   ==================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border-color);
  height: var(--header-height);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.site-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-main);
}

.logo-leaf {
  width: 28px;
  height: 28px;
  background-color: var(--primary);
  color: #ffffff;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  font-weight: 800;
}

.nav-menu {
  display: none;
}

@media (min-width: 768px) {
  .nav-menu {
    display: flex;
    align-items: center;
    gap: 28px;
    list-style: none;
  }
}

.nav-link {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-secondary);
}

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

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

/* 按钮规范 (实心克制，无夸张动效与多余箭头) */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 9px 20px;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  transition: all 0.15s ease;
  white-space: nowrap;
  border: 1px solid transparent;
}

.btn-primary {
  background-color: var(--primary);
  color: #ffffff;
}

.btn-primary:hover {
  background-color: var(--primary-hover);
  color: #ffffff;
}

.btn-primary:active {
  background-color: var(--primary-active);
}

.btn-secondary {
  background-color: #ffffff;
  color: var(--text-main);
  border-color: var(--border-subtle);
}

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

.btn-lg {
  padding: 13px 28px;
  font-size: 1.05rem;
}

.btn-block {
  width: 100%;
}

/* 移动端汉堡切换按钮 */
.menu-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  color: var(--text-main);
}

@media (min-width: 768px) {
  .menu-toggle {
    display: none;
  }
}

/* 移动端导航抽屉 */
.mobile-nav {
  display: none;
  position: absolute;
  top: var(--header-height);
  left: 0;
  right: 0;
  background-color: #ffffff;
  border-bottom: 1px solid var(--border-color);
  padding: 20px;
  box-shadow: var(--shadow-hover);
}

.mobile-nav.is-open {
  display: block;
}

.mobile-nav-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.mobile-nav-link {
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-main);
  display: block;
  padding: 6px 0;
}

/* ====================================================================
   首屏模块 (Hero Section)
   ==================================================================== */
.hero-section {
  padding: 60px 0 48px;
  border-bottom: 1px solid var(--border-color);
  background-color: #ffffff;
}

@media (min-width: 768px) {
  .hero-section {
    padding: 80px 0 64px;
  }
}

.hero-wrap {
  max-width: 860px;
  margin: 0 auto;
  text-align: center;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  background-color: var(--primary-subtle);
  color: var(--primary);
  border: 1px solid var(--primary-light);
  border-radius: var(--radius-xs);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 20px;
}

.hero-title {
  font-size: 2.2rem;
  line-height: 1.25;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text-main);
  margin-bottom: 20px;
}

@media (min-width: 768px) {
  .hero-title {
    font-size: 3.2rem;
  }
}

.hero-subtitle {
  font-size: 1.1rem;
  line-height: 1.65;
  color: var(--text-secondary);
  max-width: 680px;
  margin: 0 auto 32px;
}

.hero-actions {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
  margin-bottom: 32px;
}

@media (min-width: 640px) {
  .hero-actions {
    flex-direction: row;
    gap: 16px;
  }
}

.hero-meta-strip {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 20px;
  padding-top: 24px;
  border-top: 1px solid var(--border-color);
  font-size: 0.88rem;
  color: var(--text-muted);
}

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

.hero-meta-item svg {
  width: 16px;
  height: 16px;
  color: var(--primary);
}

/* ====================================================================
   通用区块标题 (Section Header)
   ==================================================================== */
.section {
  padding: 60px 0;
}

@media (min-width: 768px) {
  .section {
    padding: 80px 0;
  }
}

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 48px;
}

.section-subtitle-tag {
  color: var(--primary);
  font-size: 0.9rem;
  font-weight: 700;
  margin-bottom: 8px;
  display: block;
}

.section-title {
  font-size: 1.8rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--text-main);
  margin-bottom: 12px;
}

@media (min-width: 768px) {
  .section-title {
    font-size: 2.2rem;
  }
}

.section-desc {
  font-size: 1rem;
  color: var(--text-secondary);
}

/* ====================================================================
   优势解析 (Benefits Section)
   ==================================================================== */
.benefits-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

@media (min-width: 640px) {
  .benefits-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .benefits-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

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

.benefit-card:hover {
  border-color: var(--border-subtle);
  box-shadow: var(--shadow-hover);
}

.benefit-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background-color: var(--primary-subtle);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}

.benefit-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 8px;
}

.benefit-text {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ====================================================================
   核心特性模块 (Features Section - 4张特性卡)
   ==================================================================== */
.features-section {
  background-color: #ffffff;
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

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

@media (min-width: 768px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.feature-card {
  background-color: var(--bg-body);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 32px 28px;
  display: flex;
  flex-direction: column;
  height: 100%;
}

.feature-card-header {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 16px;
}

.feature-badge {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--primary);
  background-color: var(--primary-subtle);
  border: 1px solid var(--primary-light);
  padding: 4px 8px;
  border-radius: var(--radius-xs);
  flex-shrink: 0;
}

.feature-heading {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-main);
  line-height: 1.35;
}

.feature-body {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 20px;
  flex-grow: 1;
}

.feature-points {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 0.9rem;
  color: var(--text-muted);
  border-top: 1px solid var(--border-color);
  padding-top: 16px;
}

.feature-point-item {
  display: flex;
  align-items: center;
  gap: 8px;
}

.feature-point-item svg {
  width: 14px;
  height: 14px;
  color: var(--primary);
  flex-shrink: 0;
}

/* ====================================================================
   流媒体与 AI 工具支持矩阵 (Streaming & AI)
   ==================================================================== */
.support-matrix {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

@media (min-width: 768px) {
  .support-matrix {
    grid-template-columns: repeat(2, 1fr);
  }
}

.matrix-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 32px 28px;
  box-shadow: var(--shadow-card);
}

.matrix-title {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.matrix-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-bottom: 20px;
}

.matrix-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.matrix-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  background-color: var(--bg-subtle);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xs);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-main);
}

.matrix-pill.pill-active {
  background-color: var(--primary-subtle);
  border-color: var(--primary-light);
  color: var(--primary);
}

/* ====================================================================
   使用场景卡 (Scenario Cards - 3张卡)
   ==================================================================== */
.scenarios-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

@media (min-width: 768px) {
  .scenarios-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.scenario-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 28px;
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
}

.scenario-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.scenario-device {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-muted);
  background-color: var(--bg-subtle);
  padding: 3px 8px;
  border-radius: var(--radius-xs);
}

.scenario-title {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 12px;
}

.scenario-desc {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.65;
  flex-grow: 1;
}

/* ====================================================================
   定价区 (Pricing - 3档对应人群)
   ==================================================================== */
.pricing-section {
  background-color: #ffffff;
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.pricing-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  align-items: stretch;
}

@media (min-width: 900px) {
  .pricing-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

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

.price-card.popular {
  border: 2px solid var(--primary);
  box-shadow: 0 4px 20px rgba(5, 150, 105, 0.12);
}

.popular-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background-color: var(--primary);
  color: #ffffff;
  font-size: 0.78rem;
  font-weight: 700;
  padding: 3px 12px;
  border-radius: 9999px;
  letter-spacing: 0.04em;
}

.price-header {
  margin-bottom: 20px;
}

.price-tier-name {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 4px;
}

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

.price-amount-wrap {
  display: flex;
  align-items: baseline;
  gap: 4px;
  margin: 20px 0;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border-color);
}

.price-currency {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-main);
}

.price-number {
  font-size: 2.8rem;
  font-weight: 800;
  line-height: 1;
  color: var(--text-main);
}

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

.price-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 32px;
  flex-grow: 1;
  font-size: 0.92rem;
  color: var(--text-secondary);
}

.price-feature-item {
  display: flex;
  align-items: center;
  gap: 10px;
}

.price-feature-item svg {
  width: 16px;
  height: 16px;
  color: var(--primary);
  flex-shrink: 0;
}

/* ====================================================================
   常见问题 (FAQ - 抽选6题)
   ==================================================================== */
.faq-wrap {
  max-width: 820px;
  margin: 0 auto;
}

.faq-item {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  margin-bottom: 14px;
  overflow: hidden;
  transition: border-color 0.15s ease;
}

.faq-item:hover {
  border-color: var(--border-subtle);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  text-align: left;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-main);
  gap: 16px;
}

.faq-icon {
  width: 20px;
  height: 20px;
  color: var(--text-muted);
  transition: transform 0.2s ease;
  flex-shrink: 0;
}

.faq-item.is-open .faq-icon {
  transform: rotate(180deg);
  color: var(--primary);
}

.faq-answer {
  display: none;
  padding: 0 24px 22px;
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.7;
  border-top: 1px solid var(--border-color);
  padding-top: 16px;
}

.faq-item.is-open .faq-answer {
  display: block;
}

/* ====================================================================
   Final CTA 模块
   ==================================================================== */
.final-cta-section {
  padding: 64px 0;
  background-color: var(--bg-highlight);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  text-align: center;
}

.final-cta-wrap {
  max-width: 680px;
  margin: 0 auto;
}

.final-cta-title {
  font-size: 2rem;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 16px;
}

.final-cta-desc {
  font-size: 1.05rem;
  color: var(--text-secondary);
  margin-bottom: 28px;
}

/* ====================================================================
   页脚 (Footer)
   ==================================================================== */
.site-footer {
  background-color: #ffffff;
  border-top: 1px solid var(--border-color);
  padding: 56px 0 32px;
  font-size: 0.9rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
  margin-bottom: 40px;
}

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr 1fr;
  }
}

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

.footer-desc {
  color: var(--text-secondary);
  line-height: 1.6;
  max-width: 320px;
}

.footer-heading {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 14px;
}

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

.footer-link {
  color: var(--text-muted);
}

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

.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: center;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.85rem;
}

@media (min-width: 640px) {
  .footer-bottom {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}

/* ====================================================================
   移动端吸底 CTA 条 (Mobile Sticky Bar)
   ==================================================================== */
.mobile-sticky-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 99;
  background-color: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-top: 1px solid var(--border-color);
  padding: 10px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  box-shadow: 0 -4px 12px rgba(15, 23, 42, 0.06);
  transition: transform 0.25s ease, opacity 0.25s ease;
  transform: translateY(100%);
  opacity: 0;
  pointer-events: none;
}
.mobile-sticky-bar.is-visible {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
}

@media (min-width: 768px) {
  .mobile-sticky-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 99;
  background-color: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-top: 1px solid var(--border-color);
  padding: 10px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  box-shadow: 0 -4px 12px rgba(15, 23, 42, 0.06);
  transition: transform 0.25s ease, opacity 0.25s ease;
  transform: translateY(100%);
  opacity: 0;
  pointer-events: none;
}
.mobile-sticky-bar.is-visible {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
}
}

.sticky-info {
  display: flex;
  flex-direction: column;
}

.sticky-brand {
  font-weight: 700;
  font-size: 0.88rem;
  color: var(--text-main);
}

.sticky-sub {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.sticky-btn {
  padding: 8px 18px;
  font-size: 0.9rem;
}

/* ====================================================================
   文章与通用内容页排版 (Articles & Content Pages)
   ==================================================================== */
.article-header {
  padding: 48px 0 28px;
  background-color: #ffffff;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 40px;
}

.article-meta-wrap {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-top: 16px;
}

.article-content-container {
  max-width: 820px;
  margin: 0 auto;
  padding-bottom: 64px;
}

.article-lead {
  font-size: 1.15rem;
  line-height: 1.7;
  color: var(--text-secondary);
  background-color: #ffffff;
  border-left: 4px solid var(--primary);
  padding: 16px 20px;
  margin-bottom: 32px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  box-shadow: var(--shadow-sm);
}

.article-body {
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--text-secondary);
}

.article-body h2 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-main);
  margin: 40px 0 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border-color);
}

.article-body h3 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-main);
  margin: 28px 0 12px;
}

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

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

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

.article-body strong {
  color: var(--text-main);
}

.article-body blockquote {
  border-left: 3px solid var(--border-subtle);
  padding: 12px 20px;
  margin: 24px 0;
  background-color: var(--bg-subtle);
  color: var(--text-secondary);
  border-radius: 0 var(--radius-xs) var(--radius-xs) 0;
}

.article-body code {
  font-family: var(--font-mono);
  font-size: 0.9em;
  background-color: var(--bg-subtle);
  padding: 2px 6px;
  border-radius: var(--radius-xs);
  border: 1px solid var(--border-color);
}

.article-cta-box {
  background-color: #ffffff;
  border: 2px solid var(--primary-light);
  border-radius: var(--radius-md);
  padding: 32px;
  margin: 48px 0;
  text-align: center;
  box-shadow: var(--shadow-card);
}

.article-cta-title {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 8px;
}

.article-cta-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-bottom: 20px;
}

.article-internal-links {
  background-color: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 24px;
  margin: 40px 0;
}

.internal-links-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 12px;
}

.internal-links-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

/* 指南与网站地图卡片列表 */
.guides-grid, .sitemap-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  margin: 32px 0 56px;
}

@media (min-width: 640px) {
  .guides-grid, .sitemap-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.guide-item-card, .sitemap-card {
  background-color: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 24px;
  box-shadow: var(--shadow-card);
  transition: all 0.15s ease;
}

.guide-item-card:hover, .sitemap-card:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-hover);
}

.guide-card-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 8px;
}

.guide-card-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* 面包屑导航样式 */
.breadcrumb-nav {
  margin-bottom: 20px;
  font-size: 0.88rem;
}
.breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  list-style: none;
}
.breadcrumb-item a {
  color: var(--text-muted);
}
.breadcrumb-item a:hover {
  color: var(--primary);
}
.breadcrumb-item.active {
  color: var(--text-main);
  font-weight: 600;
}
.breadcrumb-separator {
  color: var(--border-subtle);
  font-size: 0.8rem;
}