/* ===================================================================
   桔子云机场 - 官方技术布道与架构知识库
   Design System: Vintage Retro (复古怀旧典雅风格)
   Domain: juzicloudjc.homes
   =================================================================== */

:root {
  --bg-primary: #f6efe2;
  --bg-secondary: #fbf8f2;
  --bg-card: #fffdf9;
  --bg-parchment: #f0e6d2;
  --bg-code: #251d18;
  
  --text-primary: #2d2117;
  --text-secondary: #5e4f43;
  --text-muted: #8c7b6e;
  --text-light: #fefdfb;

  --accent-brown: #6e3914;
  --accent-warm: #8c4a1e;
  --accent-amber: #c86826;
  --accent-gold: #c99354;
  --accent-border: #bfa386;
  --accent-light: #faeeda;
  --accent-glow: rgba(200, 104, 38, 0.18);

  --font-serif: "Songti SC", "Noto Serif SC", "Source Han Serif SC", "STSong", "Playfair Display", Georgia, "Times New Roman", serif;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-mono: "Fira Code", "Cascadia Code", "JetBrains Mono", Consolas, Courier, monospace;

  --border-radius: 4px;
  --shadow-subtle: 0 4px 16px rgba(58, 38, 22, 0.06);
  --shadow-card: 0 8px 24px rgba(58, 38, 22, 0.10);
  --shadow-hover: 0 16px 36px rgba(58, 38, 22, 0.16);
  --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  background-color: var(--bg-primary);
  background-image: 
    radial-gradient(var(--accent-glow) 1px, transparent 1px),
    linear-gradient(to bottom, #fbf7f0 0%, #f6efe2 100%);
  background-size: 28px 28px, 100% 100%;
  color: var(--text-primary);
  font-family: var(--font-sans);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* 顶部阅读进度条 */
.reading-progress-bar {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent-brown), var(--accent-amber), var(--accent-gold));
  width: 0%;
  z-index: 9999;
  transition: width 0.1s ease-out;
}

/* 页面容器 */
.container {
  width: 100%;
  max-width: 1220px;
  margin: 0 auto;
  padding: 0 24px;
}

/* 复古边框与角标装饰 */
.retro-frame {
  position: relative;
  border: 1px solid var(--accent-border);
  padding: 24px;
  background-color: var(--bg-card);
  box-shadow: var(--shadow-subtle);
}

.retro-frame::before,
.retro-frame::after {
  content: "";
  position: absolute;
  width: 12px;
  height: 12px;
  pointer-events: none;
}

.retro-frame::before {
  top: -1px;
  left: -1px;
  border-top: 3px solid var(--accent-brown);
  border-left: 3px solid var(--accent-brown);
}

.retro-frame::after {
  bottom: -1px;
  right: -1px;
  border-bottom: 3px solid var(--accent-brown);
  border-right: 3px solid var(--accent-brown);
}

.retro-corners {
  position: relative;
}

.retro-corners::before {
  content: "";
  position: absolute;
  top: -1px;
  right: -1px;
  width: 12px;
  height: 12px;
  border-top: 3px solid var(--accent-brown);
  border-right: 3px solid var(--accent-brown);
  pointer-events: none;
}

.retro-corners::after {
  content: "";
  position: absolute;
  bottom: -1px;
  left: -1px;
  width: 12px;
  height: 12px;
  border-bottom: 3px solid var(--accent-brown);
  border-left: 3px solid var(--accent-brown);
  pointer-events: none;
}

/* 顶部导航栏 */
.header-nav {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: rgba(246, 239, 226, 0.94);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--accent-border);
  box-shadow: 0 2px 10px rgba(58, 38, 22, 0.05);
}

.nav-wrapper {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--accent-brown);
}

.logo-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border: 1.5px solid var(--accent-warm);
  background: var(--bg-parchment);
  color: var(--accent-warm);
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 1.15rem;
  box-shadow: inset 0 0 4px rgba(110, 57, 20, 0.2);
}

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

.brand-name {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  color: var(--accent-brown);
}

.brand-sub {
  font-size: 0.72rem;
  color: var(--text-muted);
  letter-spacing: 1px;
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 24px;
  align-items: center;
}

.nav-links a {
  text-decoration: none;
  color: var(--text-primary);
  font-size: 0.98rem;
  font-weight: 500;
  padding: 6px 4px;
  position: relative;
  transition: var(--transition);
}

.nav-links a::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 2px;
  background-color: var(--accent-amber);
  transition: width 0.25s ease;
}

.nav-links a:hover {
  color: var(--accent-amber);
}

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

.nav-cta-btn {
  background-color: var(--accent-brown);
  color: var(--text-light) !important;
  padding: 9px 20px !important;
  border: 1px solid var(--accent-warm);
  font-weight: 600 !important;
  letter-spacing: 0.5px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  box-shadow: 0 3px 8px rgba(110, 57, 20, 0.25);
  transition: var(--transition) !important;
}

.nav-cta-btn::after {
  display: none !important;
}

.nav-cta-btn:hover {
  background-color: var(--accent-amber);
  transform: translateY(-1px);
  box-shadow: 0 5px 14px rgba(200, 104, 38, 0.35);
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: 1px solid var(--accent-border);
  padding: 8px 12px;
  cursor: pointer;
  font-size: 1.2rem;
  color: var(--accent-brown);
}

/* 英雄区域 (Hero) */
.hero-section {
  padding: 60px 0 40px;
  text-align: center;
  position: relative;
}

.vintage-header-tag {
  display: inline-block;
  font-family: var(--font-serif);
  font-size: 0.85rem;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--accent-warm);
  padding: 4px 16px;
  border-top: 1px solid var(--accent-border);
  border-bottom: 1px solid var(--accent-border);
  margin-bottom: 20px;
}

.hero-title {
  font-family: var(--font-serif);
  font-size: 2.75rem;
  font-weight: 800;
  color: var(--accent-brown);
  line-height: 1.3;
  margin-bottom: 20px;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--text-secondary);
  max-width: 820px;
  margin: 0 auto 32px;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 36px;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background-color: var(--accent-brown);
  color: #ffffff;
  padding: 13px 30px;
  font-size: 1.05rem;
  font-weight: 600;
  text-decoration: none;
  border: 1px solid var(--accent-warm);
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(110, 57, 20, 0.25);
  transition: var(--transition);
}

.btn-primary:hover {
  background-color: var(--accent-amber);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(200, 104, 38, 0.35);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background-color: var(--bg-card);
  color: var(--accent-brown);
  padding: 13px 26px;
  font-size: 1.05rem;
  font-weight: 600;
  text-decoration: none;
  border: 1px solid var(--accent-border);
  cursor: pointer;
  box-shadow: var(--shadow-subtle);
  transition: var(--transition);
}

.btn-secondary:hover {
  border-color: var(--accent-warm);
  background-color: var(--bg-parchment);
  transform: translateY(-2px);
}

/* 关键指标看板 */
.hero-metrics {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  max-width: 980px;
  margin: 20px auto 0;
}

.metric-item {
  background: var(--bg-card);
  border: 1px solid var(--accent-border);
  padding: 18px 12px;
  text-align: center;
}

.metric-num {
  font-family: var(--font-serif);
  font-size: 1.7rem;
  font-weight: 700;
  color: var(--accent-warm);
  margin-bottom: 4px;
}

.metric-label {
  font-size: 0.82rem;
  color: var(--text-secondary);
  letter-spacing: 0.5px;
}

/* 核心章节标题与装饰 */
.section-header {
  text-align: center;
  margin-bottom: 40px;
  position: relative;
}

.section-tag {
  font-family: var(--font-serif);
  font-size: 0.8rem;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: var(--accent-amber);
  margin-bottom: 8px;
  display: block;
}

.section-title {
  font-family: var(--font-serif);
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--accent-brown);
  position: relative;
  display: inline-block;
  padding-bottom: 12px;
}

.section-title::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 2px;
  background-color: var(--accent-gold);
}

.section-desc {
  font-size: 1rem;
  color: var(--text-secondary);
  max-width: 720px;
  margin: 12px auto 0;
}

/* 套餐模块 (Pricing Cards - 复刻图1 + 复古图2风格) */
.pricing-section {
  padding: 60px 0;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 40px;
}

.pricing-card {
  background-color: #ffffff;
  border: 1.5px solid #dfcbbd;
  padding: 32px 28px;
  position: relative;
  display: flex;
  flex-direction: column;
  transition: var(--transition);
  box-shadow: 0 4px 14px rgba(80, 50, 30, 0.05);
}

.pricing-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card);
  border-color: var(--accent-warm);
}

.pricing-card.featured {
  border: 2px solid #eb5e28;
  background-color: #fffbf9;
  box-shadow: 0 10px 28px rgba(235, 94, 40, 0.12);
}

.plan-label {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 1px;
  color: #8c7b6e;
  text-transform: uppercase;
  margin-bottom: 8px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.featured-pill {
  background: #eb5e28;
  color: #ffffff;
  font-family: var(--font-sans);
  font-size: 0.72rem;
  font-weight: 600;
  padding: 3px 9px;
  border-radius: 2px;
  letter-spacing: 0.5px;
}

.plan-name {
  font-family: var(--font-serif);
  font-size: 1.95rem;
  font-weight: 800;
  color: #2b1f17;
  margin-bottom: 8px;
}

.plan-desc {
  font-size: 0.9rem;
  color: #6d5d52;
  min-height: 48px;
  line-height: 1.5;
  margin-bottom: 22px;
}

.plan-features {
  list-style: none;
  margin-bottom: 28px;
  flex-grow: 1;
}

.plan-features li {
  font-size: 0.95rem;
  color: #3f3127;
  padding: 8px 0;
  display: flex;
  align-items: center;
  gap: 10px;
  border-bottom: 1px dashed #eedfce;
}

.plan-features li .check-icon {
  color: #10b981;
  font-weight: 800;
  font-size: 1.05rem;
}

.plan-price-wrap {
  border-top: 1px solid #ebdcd0;
  padding-top: 20px;
  margin-bottom: 22px;
  display: flex;
  align-items: baseline;
}

.price-currency {
  font-size: 1.25rem;
  font-weight: 800;
  color: #2b1f17;
  margin-right: 2px;
}

.price-value {
  font-family: var(--font-serif);
  font-size: 2.3rem;
  font-weight: 900;
  color: #2b1f17;
  letter-spacing: -0.5px;
}

.price-period {
  font-size: 0.85rem;
  color: #8c7b6e;
  margin-left: 4px;
}

.plan-btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 13px 20px;
  background-color: #faf5ed;
  color: #eb5e28;
  border: 1px solid #f1cfbd;
  text-decoration: none;
  font-size: 1rem;
  font-weight: 700;
  transition: var(--transition);
}

.plan-btn:hover {
  background-color: #eb5e28;
  color: #ffffff;
  border-color: #eb5e28;
}

.pricing-card.featured .plan-btn {
  background-color: #eb5e28;
  color: #ffffff;
  border-color: #eb5e28;
}

.pricing-card.featured .plan-btn:hover {
  background-color: #cf4d1c;
}

/* 扩展方案矩阵（包含模块第十位的定制按需与备用卡片） */
.extra-plans-wrapper {
  margin-top: 36px;
  background: var(--bg-card);
  border: 1px solid var(--accent-border);
  padding: 30px;
}

.extra-plans-title {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  color: var(--accent-brown);
  margin-bottom: 18px;
  text-align: center;
}

.plans-mini-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
}

.plan-mini-card {
  background: var(--bg-primary);
  border: 1px solid var(--accent-border);
  padding: 16px 20px;
  border-radius: var(--border-radius);
  position: relative;
}

.plan-mini-card.tenth-slot {
  background: #fff8f0;
  border: 2px solid var(--accent-amber);
  box-shadow: 0 4px 16px rgba(200, 104, 38, 0.15);
}

.plan-mini-card.tenth-slot::before {
  content: "模块第十位 · 极客与团队推荐";
  position: absolute;
  top: -11px;
  left: 16px;
  background: var(--accent-amber);
  color: #fff;
  font-size: 0.68rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 2px;
}

.mini-name {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--accent-brown);
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.mini-price {
  font-weight: 800;
  color: var(--accent-warm);
}

.mini-desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 12px;
}

.mini-btn {
  display: inline-block;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--accent-brown);
  text-decoration: none;
  border-bottom: 1px solid var(--accent-brown);
  transition: var(--transition);
}

.mini-btn:hover {
  color: var(--accent-amber);
  border-color: var(--accent-amber);
}

/* 核心技术优势展开 */
.advantages-section {
  padding: 60px 0;
}

.advantages-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.adv-card {
  background: var(--bg-card);
  border: 1px solid var(--accent-border);
  padding: 28px 24px;
  position: relative;
  transition: var(--transition);
}

.adv-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent-warm);
  box-shadow: var(--shadow-card);
}

.adv-icon-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background-color: var(--bg-parchment);
  border: 1px solid var(--accent-border);
  color: var(--accent-warm);
  font-size: 1.3rem;
  margin-bottom: 16px;
}

.adv-title {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--accent-brown);
  margin-bottom: 10px;
}

.adv-text {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* 文章知识库模块 & 首页动态点缀 */
.articles-section {
  padding: 60px 0;
}

.article-showcase-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.article-card {
  background: var(--bg-card);
  border: 1px solid var(--accent-border);
  padding: 24px;
  position: relative;
  display: flex;
  flex-direction: column;
  transition: var(--transition);
  overflow: hidden;
}

/* 首页文章动态点缀微动效 (Dynamic Accent) */
.article-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 60%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(200, 104, 38, 0.08),
    transparent
  );
  transform: skewX(-25deg);
  transition: 0.75s ease;
  pointer-events: none;
}

.article-card:hover::before {
  left: 150%;
}

.article-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-hover);
  border-color: var(--accent-warm);
}

.article-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-bottom: 12px;
  border-bottom: 1px dashed var(--accent-border);
  padding-bottom: 8px;
}

.article-tag {
  color: var(--accent-amber);
  font-weight: 600;
}

.article-card-title {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--accent-brown);
  line-height: 1.45;
  margin-bottom: 12px;
}

.article-card-title a {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s;
}

.article-card-title a:hover {
  color: var(--accent-amber);
}

.article-excerpt {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 18px;
  flex-grow: 1;
}

.article-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 12px;
  border-top: 1px solid rgba(191, 163, 134, 0.35);
  font-size: 0.82rem;
}

.read-more-link {
  color: var(--accent-warm);
  font-weight: 700;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: var(--transition);
}

.read-more-link:hover {
  color: var(--accent-amber);
  transform: translateX(3px);
}

.article-stats {
  color: var(--text-muted);
}

/* 常见问题模块 (50 FAQ 知识库与实时搜索) */
.faq-section {
  padding: 60px 0;
  background: var(--bg-secondary);
  border-top: 1px solid var(--accent-border);
  border-bottom: 1px solid var(--accent-border);
}

.faq-search-box {
  max-width: 640px;
  margin: 0 auto 36px;
  position: relative;
}

.faq-search-input {
  width: 100%;
  padding: 14px 20px 14px 44px;
  background: #ffffff;
  border: 1.5px solid var(--accent-border);
  font-size: 1rem;
  color: var(--text-primary);
  border-radius: var(--border-radius);
  outline: none;
  transition: var(--transition);
}

.faq-search-input:focus {
  border-color: var(--accent-warm);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.faq-search-icon {
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: 1.1rem;
}

.faq-category-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  margin-bottom: 28px;
}

.category-pill {
  padding: 6px 14px;
  background: var(--bg-card);
  border: 1px solid var(--accent-border);
  font-size: 0.85rem;
  color: var(--text-secondary);
  cursor: pointer;
  border-radius: 20px;
  transition: var(--transition);
}

.category-pill:hover,
.category-pill.active {
  background: var(--accent-brown);
  color: #ffffff;
  border-color: var(--accent-brown);
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-width: 960px;
  margin: 0 auto;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--accent-border);
  transition: var(--transition);
}

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

.faq-question {
  padding: 18px 24px;
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--accent-brown);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  user-select: none;
}

.faq-icon-toggle {
  font-size: 1.25rem;
  font-weight: 400;
  color: var(--accent-amber);
  transition: transform 0.3s ease;
}

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

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease-out;
  padding: 0 24px;
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.75;
}

.faq-item.open .faq-answer {
  max-height: 500px;
  padding: 0 24px 20px 24px;
}

/* 文章详情页专用排版系统 (深度技术博客) */
.article-detail-wrap {
  padding: 50px 0 80px;
}

.article-header {
  text-align: center;
  max-width: 920px;
  margin: 0 auto 40px;
  padding-bottom: 28px;
  border-bottom: 1.5px solid var(--accent-border);
}

.article-main-title {
  font-family: var(--font-serif);
  font-size: 2.35rem;
  font-weight: 800;
  color: var(--accent-brown);
  line-height: 1.35;
  margin-bottom: 20px;
}

.article-meta-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
  font-size: 0.88rem;
  color: var(--text-muted);
}

.article-meta-bar span {
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.article-content {
  max-width: 860px;
  margin: 0 auto;
  font-size: 1.05rem;
  line-height: 1.9;
  color: var(--text-primary);
}

.article-content p {
  margin-bottom: 1.6rem;
  text-align: justify;
}

.article-content h2 {
  font-family: var(--font-serif);
  font-size: 1.7rem;
  font-weight: 700;
  color: var(--accent-brown);
  margin: 2.4rem 0 1.2rem;
  padding-left: 14px;
  border-left: 4px solid var(--accent-amber);
}

.article-content h3 {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--accent-warm);
  margin: 1.8rem 0 0.9rem;
}

.article-content ul,
.article-content ol {
  margin: 1rem 0 1.6rem 1.8rem;
}

.article-content li {
  margin-bottom: 0.6rem;
}

.article-content blockquote {
  background: var(--bg-parchment);
  border-left: 4px solid var(--accent-warm);
  padding: 16px 22px;
  margin: 1.8rem 0;
  font-style: italic;
  color: var(--text-secondary);
}

/* 数据对比表格 */
.table-container {
  overflow-x: auto;
  margin: 2rem 0;
  border: 1px solid var(--accent-border);
  box-shadow: var(--shadow-subtle);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.92rem;
  background: #ffffff;
}

.data-table th {
  background: var(--bg-parchment);
  color: var(--accent-brown);
  font-family: var(--font-serif);
  font-weight: 700;
  padding: 12px 16px;
  border-bottom: 1.5px solid var(--accent-border);
}

.data-table td {
  padding: 12px 16px;
  border-bottom: 1px solid rgba(191, 163, 134, 0.4);
  color: var(--text-secondary);
}

.data-table tr:hover {
  background: #fdfaf5;
}

/* 代码块配置 */
.code-block-wrap {
  margin: 1.8rem 0;
  background: var(--bg-code);
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.15);
}

.code-header {
  background: #1c1511;
  padding: 8px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid #3d2f26;
}

.code-title {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: #dfcbbd;
}

.copy-btn {
  background: transparent;
  border: 1px solid #5a473c;
  color: #dfcbbd;
  font-size: 0.75rem;
  padding: 3px 8px;
  border-radius: 3px;
  cursor: pointer;
  transition: var(--transition);
}

.copy-btn:hover {
  background: #5a473c;
  color: #ffffff;
}

.code-block-wrap pre {
  padding: 16px;
  overflow-x: auto;
  margin: 0;
}

.code-block-wrap code {
  font-family: var(--font-mono);
  font-size: 0.88rem;
  color: #f7eedf;
  line-height: 1.6;
}

/* 文章内部跳转与导航导流 */
.article-internal-links {
  margin: 3rem 0;
  padding: 24px;
  background: var(--bg-parchment);
  border: 1px solid var(--accent-border);
}

.internal-links-title {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--accent-brown);
  margin-bottom: 12px;
}

.internal-links-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 12px;
}

.internal-link-card {
  background: #ffffff;
  padding: 10px 14px;
  border: 1px solid var(--accent-border);
  text-decoration: none;
  color: var(--text-primary);
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: var(--transition);
}

.internal-link-card:hover {
  border-color: var(--accent-warm);
  color: var(--accent-amber);
  transform: translateX(3px);
}

/* 页脚 (Footer) */
.site-footer {
  background: #251b14;
  color: #d1c0b3;
  padding: 60px 0 30px;
  border-top: 3px solid var(--accent-warm);
  font-size: 0.9rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 36px;
  margin-bottom: 40px;
}

.footer-col h4 {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  color: #f6efe2;
  margin-bottom: 16px;
  letter-spacing: 0.5px;
}

.footer-col p {
  line-height: 1.7;
  color: #a89485;
}

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

.footer-links li {
  margin-bottom: 8px;
}

.footer-links a {
  color: #a89485;
  text-decoration: none;
  transition: var(--transition);
}

.footer-links a:hover {
  color: #e59866;
}

.footer-bottom {
  text-align: center;
  padding-top: 24px;
  border-top: 1px solid #3c2f25;
  color: #7b695c;
  font-size: 0.8rem;
}

/* 响应式适配 */
@media (max-width: 992px) {
  .pricing-grid,
  .advantages-grid,
  .article-showcase-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .hero-metrics {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .pricing-grid,
  .advantages-grid,
  .article-showcase-grid {
    grid-template-columns: 1fr;
  }
  .nav-links {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    width: 100%;
    background: var(--bg-card);
    flex-direction: column;
    padding: 20px;
    border-bottom: 2px solid var(--accent-warm);
    box-shadow: 0 8px 20px rgba(0,0,0,0.1);
  }
  .nav-links.active {
    display: flex;
  }
  .mobile-menu-btn {
    display: block;
  }
  .hero-title {
    font-size: 2rem;
  }
  .hero-metrics {
    grid-template-columns: 1fr 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
}