@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700&family=Noto+Sans+SC:wght@300;400;500;700&display=swap');

/* Desert Style System - CSS Variables */
:root {
  --bg-base: #FAF6F0;
  --bg-surface: #F3EADE;
  --bg-surface-light: #FBF9F6;
  --bg-card: #FFFFFF;
  --bg-glass: rgba(251, 249, 246, 0.85);
  
  --color-primary: #B87D4B;      /* Warm Terracotta Sand */
  --color-primary-hover: #9E6535;
  --color-primary-rgb: 184, 125, 75;
  
  --color-secondary: #D4A373;    /* Golden Sand */
  --color-accent: #E6CCB2;       /* Light Beige */
  --color-text-main: #3E342B;    /* Deep Charcoal-Brown */
  --color-text-muted: #7A6E63;   /* Clay Gray */
  --color-border: #E8DEC9;       /* Sand Border */
  --color-border-light: #F0E8D9;
  
  --shadow-sm: 0 4px 6px -1px rgba(62, 52, 43, 0.05), 0 2px 4px -1px rgba(62, 52, 43, 0.03);
  --shadow-md: 0 10px 15px -3px rgba(62, 52, 43, 0.08), 0 4px 6px -2px rgba(62, 52, 43, 0.04);
  --shadow-lg: 0 20px 25px -5px rgba(62, 52, 43, 0.1), 0 10px 10px -5px rgba(62, 52, 43, 0.04);
  
  --font-main: 'Outfit', 'Noto Sans SC', sans-serif;
  --transition-normal: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
}

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

html {
  scroll-behavior: smooth;
  font-family: var(--font-main);
  background-color: var(--bg-base);
  color: var(--color-text-main);
  line-height: 1.6;
}

body {
  overflow-x: hidden;
  min-height: 100vh;
  position: relative;
}

/* Sandstorm Particle Canvas background */
#sandstorm-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: -1;
  pointer-events: none;
}

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

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

/* Common Layout Components */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 80px 0;
  position: relative;
  z-index: 1;
}

.section-title {
  text-align: center;
  margin-bottom: 48px;
}

.section-title h2 {
  font-size: 2.25rem;
  font-weight: 700;
  color: var(--color-text-main);
  margin-bottom: 12px;
  position: relative;
  display: inline-block;
}

.section-title h2::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 4px;
  background: linear-gradient(90deg, var(--color-secondary), var(--color-primary));
  border-radius: 2px;
}

.section-title p {
  color: var(--color-text-muted);
  font-size: 1.125rem;
  max-width: 600px;
  margin: 0 auto;
}

/* Navigation Header */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  background-color: transparent;
  border-bottom: 1px solid transparent;
  transition: var(--transition-normal);
}

header.scrolled {
  background-color: var(--bg-glass);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--color-text-main);
}

.logo span {
  color: var(--color-primary);
}


.nav-menu {
  display: flex;
  list-style: none;
  gap: 32px;
  align-items: center;
}

.nav-link {
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--color-text-muted);
  position: relative;
  padding: 8px 0;
}

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

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-primary);
  transition: var(--transition-normal);
}

.nav-link:hover::after, .nav-link.active::after {
  width: 100%;
}

.btn-header {
  padding: 8px 20px;
  background-color: var(--color-primary);
  color: #fff;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.9rem;
  box-shadow: 0 4px 12px rgba(184, 125, 75, 0.2);
}

.btn-header:hover {
  background-color: var(--color-primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(184, 125, 75, 0.35);
}

/* Burger Mobile Menu */
.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  z-index: 101;
}

.mobile-menu-btn span {
  width: 25px;
  height: 3px;
  background-color: var(--color-text-main);
  border-radius: 3px;
  transition: var(--transition-normal);
}

/* Button & Micro-interaction styles */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  color: #fff !important;
  font-weight: 600;
  border-radius: var(--radius-md);
  box-shadow: 0 8px 20px rgba(184, 125, 75, 0.25);
  border: none;
  cursor: pointer;
  transition: var(--transition-normal);
  position: relative;
  overflow: hidden;
  z-index: 1;
}

.btn-primary::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, var(--color-secondary), var(--color-primary));
  opacity: 0;
  transition: opacity 0.5s ease;
  z-index: -1;
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 28px rgba(184, 125, 75, 0.4);
}

.btn-primary:hover::before {
  opacity: 1;
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  background-color: var(--bg-card);
  color: var(--color-text-main) !important;
  font-weight: 600;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
  cursor: pointer;
  transition: var(--transition-normal);
}

.btn-secondary:hover {
  background-color: var(--bg-surface);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* Hero Section */
.hero {
  padding-top: 150px;
  padding-bottom: 80px;
  text-align: center;
  position: relative;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 16px;
  background-color: var(--color-accent);
  color: #7A5330;
  font-weight: 600;
  font-size: 0.85rem;
  border-radius: 50px;
  margin-bottom: 24px;
  box-shadow: var(--shadow-sm);
}

.hero h1 {
  font-size: 3.5rem;
  line-height: 1.2;
  font-weight: 800;
  color: var(--color-text-main);
  max-width: 850px;
  margin: 0 auto 24px auto;
}

.hero h1 span {
  background: linear-gradient(135deg, var(--color-primary), #8C5B32);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-description {
  font-size: 1.25rem;
  color: var(--color-text-muted);
  max-width: 650px;
  margin: 0 auto 36px auto;
  line-height: 1.7;
}

.hero-buttons {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-bottom: 48px;
}

.hero-metrics {
  display: flex;
  justify-content: center;
  gap: 64px;
  max-width: 800px;
  margin: 0 auto;
  padding-top: 48px;
  border-top: 1px dashed var(--color-border);
}

.metric-item h3 {
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--color-primary);
}

.metric-item p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  font-weight: 500;
}

/* Core Advantages */
.advantages-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 32px;
}

.advantage-card {
  background-color: var(--bg-card);
  padding: 40px 32px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border-light);
  box-shadow: var(--shadow-sm);
  transition: var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.advantage-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-secondary);
}

.advantage-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(180deg, var(--color-primary), var(--color-secondary));
  opacity: 0;
  transition: var(--transition-normal);
}

.advantage-card:hover::before {
  opacity: 1;
}

.advantage-icon {
  width: 60px;
  height: 60px;
  border-radius: var(--radius-md);
  background-color: rgba(184, 125, 75, 0.08);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  margin-bottom: 24px;
  font-weight: bold;
}

.advantage-card h3 {
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--color-text-main);
}

.advantage-card p {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* Pricing Section */
.pricing-toggle {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 16px;
  margin-bottom: 48px;
}

.pricing-toggle span {
  font-weight: 600;
  font-size: 1rem;
  color: var(--color-text-muted);
  cursor: pointer;
}

.pricing-toggle span.active {
  color: var(--color-text-main);
}

.toggle-switch {
  width: 60px;
  height: 32px;
  background-color: var(--bg-surface);
  border-radius: 30px;
  position: relative;
  cursor: pointer;
  border: 1px solid var(--color-border);
}

.toggle-knob {
  width: 24px;
  height: 24px;
  background-color: var(--color-primary);
  border-radius: 50%;
  position: absolute;
  top: 3px;
  left: 3px;
  transition: var(--transition-normal);
}

.pricing-toggle.active .toggle-knob {
  left: 31px;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 28px;
}

.pricing-card {
  background-color: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  border: 1px solid var(--color-border-light);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  position: relative;
  transition: var(--transition-normal);
}

.pricing-card.featured {
  border: 2px solid var(--color-primary);
  box-shadow: var(--shadow-lg);
}

.pricing-card.featured::after {
  content: '推荐';
  position: absolute;
  top: 16px;
  right: 16px;
  padding: 4px 12px;
  background-color: var(--color-primary);
  color: #fff;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 700;
}

.pricing-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.plan-name {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-text-main);
  margin-bottom: 8px;
}

.plan-traffic {
  font-size: 0.95rem;
  color: var(--color-primary);
  font-weight: 600;
  background-color: rgba(184, 125, 75, 0.08);
  padding: 4px 12px;
  border-radius: 50px;
  display: inline-block;
  align-self: flex-start;
  margin-bottom: 24px;
}

.plan-price-wrapper {
  margin-bottom: 30px;
}

.plan-price {
  font-size: 2.75rem;
  font-weight: 800;
  color: var(--color-text-main);
  line-height: 1;
}

.plan-price span {
  font-size: 1rem;
  color: var(--color-text-muted);
  font-weight: 500;
}

.plan-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-bottom: 36px;
  flex-grow: 1;
}

.plan-features li {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  gap: 10px;
}

.plan-features li::before {
  content: '✓';
  color: var(--color-primary);
  font-weight: 900;
}

.btn-plan {
  width: 100%;
  text-align: center;
  padding: 12px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  transition: var(--transition-normal);
  display: block;
}

.pricing-card.featured .btn-plan {
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  color: #fff;
  box-shadow: 0 4px 12px rgba(184, 125, 75, 0.2);
}

.pricing-card.featured .btn-plan:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(184, 125, 75, 0.35);
}

.pricing-card:not(.featured) .btn-plan {
  background-color: var(--bg-surface);
  color: var(--color-text-main);
  border: 1px solid var(--color-border);
}

.pricing-card:not(.featured) .btn-plan:hover {
  background-color: var(--color-accent);
  transform: translateY(-2px);
}

/* Target Audience */
.audience-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 28px;
}

.audience-card {
  background-color: var(--bg-card);
  padding: 32px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-light);
  box-shadow: var(--shadow-sm);
  text-align: center;
}

.audience-card h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.audience-card p {
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

/* Tutorials Hub Section */
.tutorials-hub-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 32px;
}

.tutorial-hub-card {
  background-color: var(--bg-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border-light);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.tutorial-hub-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.tutorial-header {
  padding: 32px 32px 20px 32px;
  border-bottom: 1px solid var(--color-border-light);
}

.tutorial-logo {
  font-size: 2rem;
  margin-bottom: 16px;
}

.tutorial-header h3 {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--color-text-main);
}

.tutorial-body {
  padding: 24px 32px;
  flex-grow: 1;
}

.tutorial-steps {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 24px;
}

.tutorial-steps li {
  font-size: 0.925rem;
  color: var(--color-text-muted);
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.tutorial-steps li strong {
  color: var(--color-text-main);
  background-color: var(--bg-surface);
  border-radius: 50%;
  width: 20px;
  height: 20px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  flex-shrink: 0;
  margin-top: 2px;
}

.btn-tutorial-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--color-primary);
  font-weight: 700;
  font-size: 0.95rem;
}

.btn-tutorial-link:hover {
  gap: 10px;
}

/* User Reviews (Testimonials) */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 32px;
}

.review-card {
  background-color: var(--bg-card);
  padding: 32px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-light);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
}

.review-stars {
  color: #E29547;
  font-size: 1.1rem;
  margin-bottom: 16px;
}

.review-content {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  font-style: italic;
  margin-bottom: 24px;
  flex-grow: 1;
}

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

.user-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background-color: var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: var(--color-text-main);
}

.user-info h4 {
  font-size: 0.95rem;
  font-weight: 700;
}

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

/* FAQ Accordion */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

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

.faq-item.active {
  border-color: var(--color-secondary);
  box-shadow: var(--shadow-sm);
}

.faq-header {
  padding: 20px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--color-text-main);
  background: none;
  border: none;
  width: 100%;
  text-align: left;
}

.faq-icon {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background-color: var(--bg-surface);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  color: var(--color-text-muted);
  transition: var(--transition-normal);
}

.faq-item.active .faq-icon {
  transform: rotate(45deg);
  background-color: var(--color-primary);
  color: #fff;
}

.faq-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease-out;
}

.faq-content {
  padding: 0 24px 24px 24px;
  color: var(--color-text-muted);
  font-size: 0.95rem;
  line-height: 1.7;
}

/* Articles Section */
.articles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 32px;
}

.article-card {
  background-color: var(--bg-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border-light);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  transition: var(--transition-normal);
}

.article-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.article-img-placeholder {
  height: 180px;
  background: linear-gradient(135deg, var(--bg-surface), var(--color-accent));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  color: var(--color-primary);
  opacity: 0.8;
}

.article-info {
  padding: 24px;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.article-meta {
  display: flex;
  gap: 16px;
  font-size: 0.8rem;
  color: var(--color-text-muted);
  margin-bottom: 12px;
}

.article-info h3 {
  font-size: 1.15rem;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 12px;
  color: var(--color-text-main);
}

.article-info h3 a:hover {
  color: var(--color-primary);
}

.article-excerpt {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin-bottom: 20px;
  flex-grow: 1;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.article-more-btn {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--color-primary);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.article-more-btn:hover {
  gap: 8px;
}

/* Call To Action Box */
.cta-banner {
  background: linear-gradient(135deg, var(--color-text-main), #1A1512);
  border-radius: var(--radius-lg);
  padding: 60px 40px;
  text-align: center;
  color: #fff;
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
}

.cta-banner::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at 80% 20%, rgba(184, 125, 75, 0.15), transparent 50%);
  pointer-events: none;
}

.cta-banner h2 {
  font-size: 2.25rem;
  font-weight: 800;
  margin-bottom: 16px;
}

.cta-banner p {
  font-size: 1.1rem;
  color: var(--color-accent);
  max-width: 600px;
  margin: 0 auto 32px auto;
}

/* Detailed Article Page Structure & Breadcrumb */
.breadcrumb-container {
  padding-top: 100px;
  padding-bottom: 10px;
}

.breadcrumb {
  display: flex;
  list-style: none;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.breadcrumb-item + .breadcrumb-item::before {
  content: '>';
  color: var(--color-border);
  margin-right: 8px;
}

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

.article-layout {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 40px;
  padding-bottom: 80px;
}

.article-content {
  background-color: var(--bg-card);
  padding: 48px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border-light);
  box-shadow: var(--shadow-sm);
}

.article-content h1 {
  font-size: 2.25rem;
  font-weight: 800;
  margin-bottom: 16px;
  line-height: 1.3;
}

.article-content-meta {
  display: flex;
  gap: 20px;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  border-bottom: 1px solid var(--color-border-light);
  padding-bottom: 20px;
  margin-bottom: 30px;
}

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

.article-body p {
  margin-bottom: 24px;
}

.article-body h2 {
  font-size: 1.6rem;
  font-weight: 700;
  margin-top: 40px;
  margin-bottom: 16px;
  color: var(--color-text-main);
  border-left: 4px solid var(--color-primary);
  padding-left: 12px;
}

.article-body h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-top: 28px;
  margin-bottom: 12px;
  color: var(--color-text-main);
}

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

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

.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 32px 0;
  font-size: 0.95rem;
}

.article-body th, .article-body td {
  border: 1px solid var(--color-border);
  padding: 12px 16px;
  text-align: left;
}

.article-body th {
  background-color: var(--bg-surface);
  font-weight: 700;
}

.article-body tr:nth-child(even) {
  background-color: var(--bg-surface-light);
}

/* Related articles sidebar */
.sidebar {
  display: flex;
  flex-direction: column;
  gap: 30px;
}

.sidebar-widget {
  background-color: var(--bg-card);
  padding: 24px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-light);
  box-shadow: var(--shadow-sm);
}

.sidebar-widget h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 16px;
  border-bottom: 2px solid var(--color-accent);
  padding-bottom: 8px;
}

.sidebar-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.sidebar-list li a {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  display: block;
}

.sidebar-list li a:hover {
  color: var(--color-primary);
}

/* Footer style */
footer {
  background-color: #1E1A17;
  color: #fff;
  padding: 80px 0 30px 0;
  position: relative;
  z-index: 1;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 48px;
  margin-bottom: 60px;
}

.footer-brand h3 {
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 16px;
  color: #fff;
}

.footer-brand h3 span {
  color: var(--color-primary);
}

.footer-brand p {
  color: #A69C92;
  font-size: 0.9rem;
  margin-bottom: 24px;
  line-height: 1.6;
}

.footer-links h4 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 20px;
  color: #fff;
}

.footer-links ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-links ul li a {
  font-size: 0.9rem;
  color: #A69C92;
}

.footer-links ul li a:hover {
  color: var(--color-secondary);
}

.footer-copyright {
  text-align: center;
  font-size: 0.85rem;
  color: #7D7267;
  border-top: 1px solid #332B25;
  padding-top: 30px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-legal-links {
  display: flex;
  gap: 20px;
}

.footer-legal-links a:hover {
  color: var(--color-secondary);
}

/* Mobile Styling Rules (Responsive) */
@media (max-width: 992px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
  
  .article-layout {
    grid-template-columns: 1fr;
  }
  
  .sidebar {
    order: 2;
  }
  
  .hero h1 {
    font-size: 2.75rem;
  }
}

@media (max-width: 768px) {
  .header-container {
    padding: 0 16px;
  }
  
  .nav-menu {
    position: fixed;
    top: 70px;
    left: -100%;
    width: 100%;
    height: calc(100vh - 70px);
    background-color: var(--bg-base);
    flex-direction: column;
    padding: 40px 24px;
    gap: 24px;
    align-items: stretch;
    transition: var(--transition-normal);
    box-shadow: var(--shadow-lg);
    border-top: 1px solid var(--color-border);
    overflow-y: auto;
  }
  
  .nav-menu.active {
    left: 0;
  }
  
  .mobile-menu-btn {
    display: flex;
  }
  
  /* Menu icon active state transitions */
  .mobile-menu-btn.active span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
  }
  
  .mobile-menu-btn.active span:nth-child(2) {
    opacity: 0;
  }
  
  .mobile-menu-btn.active span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
  }
  
  .hero h1 {
    font-size: 2.25rem;
  }
  
  .hero-buttons {
    flex-direction: column;
    align-items: stretch;
    max-width: 320px;
    margin: 0 auto 36px auto;
  }
  
  .hero-metrics {
    flex-direction: column;
    gap: 24px;
  }
  
  .section {
    padding: 60px 0;
  }
  
  .pricing-toggle {
    margin-bottom: 32px;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  
  .footer-copyright {
    flex-direction: column;
    gap: 16px;
  }
  
  .article-content {
    padding: 24px;
  }
  
  .article-content h1 {
    font-size: 1.75rem;
  }
}