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

/* --- Design Tokens & Variables --- */
:root {
  --bg-primary: #F3FFF8;
  --bg-secondary: #ECFFF4;
  --bg-card: #FFFFFF;
  --primary: #19C37D;
  --primary-hover: #16A36A;
  --accent: #00B894;
  --accent-light: #DFFFEF;
  --text-title: #102A23;
  --text-body: #35544A;
  --text-light: #5A7D71;
  --border-color: rgba(25, 195, 125, 0.12);
  --border-color-hover: rgba(25, 195, 125, 0.3);
  --shadow-sm: 0 4px 12px rgba(25, 195, 125, 0.04);
  --shadow-md: 0 10px 30px rgba(25, 195, 125, 0.06);
  --shadow-lg: 0 20px 40px rgba(16, 42, 35, 0.08);
  --font-sans: 'Inter', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --max-width: 1200px;
  --header-height: 70px;
}

/* --- Base Resets --- */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-body);
  line-height: 1.625;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  color: var(--text-title);
  font-weight: 700;
  line-height: 1.3;
}

h1 { font-size: 2.25rem; }
h2 { font-size: 1.85rem; margin-bottom: 1.5rem; text-align: center; position: relative; }
h3 { font-size: 1.35rem; }
h4 { font-size: 1.1rem; }

a {
  color: var(--primary);
  text-decoration: none;
  transition: all 0.25s ease;
}
a:hover {
  color: var(--primary-hover);
}

ul {
  list-style: none;
}

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

/* --- Layout Elements --- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

section {
  padding: 5rem 0;
  position: relative;
}

.section-bg-alt {
  background-color: var(--bg-secondary);
}

/* Section Titles with Green Line */
h2.section-title::after {
  content: '';
  display: block;
  width: 50px;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  margin: 0.75rem auto 0 auto;
  border-radius: 2px;
}

.section-subtitle {
  text-align: center;
  color: var(--text-light);
  max-width: 700px;
  margin: -1rem auto 3rem auto;
  font-size: 1.05rem;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.8rem 1.8rem;
  font-size: 1rem;
  font-weight: 600;
  border-radius: 50px;
  transition: all 0.3s cubic-bezier(0.165, 0.84, 0.44, 1);
  cursor: pointer;
  border: none;
  gap: 0.5rem;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #FFFFFF;
  box-shadow: 0 4px 15px rgba(25, 195, 125, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(25, 195, 125, 0.45);
  color: #FFFFFF;
}

.btn-secondary {
  background-color: var(--accent-light);
  color: var(--primary-hover);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover {
  background-color: rgba(25, 195, 125, 0.18);
  transform: translateY(-2px);
  color: var(--primary-hover);
}

.btn-outline {
  background-color: transparent;
  color: var(--text-title);
  border: 1px solid var(--border-color);
}

.btn-outline:hover {
  background-color: #FFFFFF;
  border-color: var(--primary);
  transform: translateY(-2px);
  color: var(--primary-hover);
}

.btn-sm {
  padding: 0.5rem 1.2rem;
  font-size: 0.875rem;
}

/* --- Navigation Bar --- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  background-color: rgba(243, 255, 248, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  z-index: 1000;
  transition: background-color 0.3s ease;
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  font-size: 1.3rem;
  color: var(--text-title);
}

.logo-icon {
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 900;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.nav-link {
  color: var(--text-title);
  font-weight: 500;
  font-size: 0.95rem;
  padding: 0.4rem 0.6rem;
  position: relative;
}

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

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background-color: var(--primary);
  transition: all 0.3s ease;
  transform: translateX(-50%);
}

.nav-link:hover::after {
  width: 80%;
}

.nav-btn {
  margin-left: 0.5rem;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 26px;
  height: 19px;
  background: transparent;
  border: none;
  cursor: pointer;
  z-index: 1001;
}

.nav-toggle span {
  width: 100%;
  height: 2.5px;
  background-color: var(--text-title);
  border-radius: 2px;
  transition: all 0.3s ease;
}

/* --- Hero Section --- */
.hero {
  padding-top: calc(var(--header-height) + 3rem);
  padding-bottom: 5rem;
  overflow: hidden;
  background: radial-gradient(circle at top right, rgba(0, 184, 148, 0.08), transparent 45%),
              radial-gradient(circle at bottom left, rgba(25, 195, 125, 0.05), transparent 45%),
              var(--bg-primary);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 3.5rem;
  align-items: center;
}

.hero-content h1 {
  font-size: 2.6rem;
  margin-bottom: 1.25rem;
  line-height: 1.25;
  background: linear-gradient(135deg, var(--text-title) 60%, var(--primary-hover));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-desc {
  font-size: 1.1rem;
  color: var(--text-body);
  margin-bottom: 2rem;
  max-width: 620px;
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 2.5rem;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-body);
  padding: 0.4rem 1rem;
  border-radius: 30px;
  font-size: 0.875rem;
  font-weight: 500;
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s ease;
}

.hero-tag:hover {
  transform: translateY(-2px);
  border-color: var(--primary);
}

.hero-tag-dot {
  width: 6px;
  height: 6px;
  background-color: var(--primary);
  border-radius: 50%;
  display: inline-block;
  box-shadow: 0 0 8px var(--primary);
  animation: pulse 1.8s infinite alternate;
}

.hero-btns {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

/* Hero Right Tech Card */
.hero-card-wrapper {
  position: relative;
}

.hero-card {
  background: rgba(255, 255, 255, 0.75);
  backdrop-filter: blur(15px);
  -webkit-backdrop-filter: blur(15px);
  border: 1px solid rgba(255, 255, 255, 0.5);
  box-shadow: var(--shadow-lg);
  border-radius: 20px;
  padding: 2.25rem;
  position: relative;
  z-index: 2;
  overflow: hidden;
}

.hero-card::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: linear-gradient(45deg, transparent, rgba(25, 195, 125, 0.05), transparent);
  transform: rotate(45deg);
  animation: shine 6s infinite linear;
}

.hero-card-title {
  font-size: 1.25rem;
  margin-bottom: 1.5rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.hero-card-list {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
  margin-bottom: 1.5rem;
}

.hero-card-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-size: 0.95rem;
}

.hero-card-item svg {
  color: var(--primary);
  flex-shrink: 0;
  margin-top: 2px;
}

.hero-card-item strong {
  color: var(--text-title);
  display: block;
}

.hero-card-apps {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1.5rem;
  padding-top: 1.2rem;
  border-top: 1px solid var(--border-color);
}

.hero-app-badge {
  background-color: var(--accent-light);
  color: var(--text-title);
  padding: 0.25rem 0.6rem;
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 500;
  border: 1px solid rgba(25, 195, 125, 0.1);
}

/* Background floating shield and pulse */
.floating-shield {
  position: absolute;
  top: -20px;
  right: -20px;
  width: 60px;
  height: 60px;
  background: var(--bg-card);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-color);
  animation: float 4s ease-in-out infinite;
  z-index: 3;
}

/* --- Core Advantages Section --- */
.advantages-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
}

.advantage-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 2.25rem;
  box-shadow: var(--shadow-sm);
  transition: all 0.3s cubic-bezier(0.165, 0.84, 0.44, 1);
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.advantage-card:hover {
  transform: translateY(-6px);
  border-color: var(--primary);
  box-shadow: var(--shadow-lg);
}

.advantage-icon-box {
  width: 50px;
  height: 50px;
  border-radius: 12px;
  background-color: var(--accent-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.3s ease;
}

.advantage-card:hover .advantage-icon-box {
  transform: scale(1.1) rotate(5deg);
  background-color: var(--primary);
  color: white;
}

.advantage-card h3 {
  margin-top: 0.25rem;
}

/* --- Section Divider CTA Banner --- */
.cta-banner {
  background: linear-gradient(135deg, #102A23, #16A36A);
  color: #FFFFFF;
  border-radius: 20px;
  padding: 3rem 2.5rem;
  margin-top: 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  box-shadow: var(--shadow-lg);
}

.cta-banner-content h3 {
  color: #FFFFFF;
  font-size: 1.6rem;
  margin-bottom: 0.5rem;
}

.cta-banner-content p {
  color: rgba(255, 255, 255, 0.85);
  font-size: 1.05rem;
  max-width: 600px;
}

.cta-banner .btn {
  flex-shrink: 0;
}

/* --- Pricing Section --- */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  align-items: stretch;
}

.pricing-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 2.5rem 2rem;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  position: relative;
  transition: all 0.3s cubic-bezier(0.165, 0.84, 0.44, 1);
}

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

.pricing-card.popular {
  border: 2px solid var(--primary);
  background: linear-gradient(180deg, var(--bg-card) 0%, rgba(25, 195, 125, 0.02) 100%);
}

.popular-badge {
  position: absolute;
  top: -15px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #FFFFFF;
  padding: 0.3rem 1.2rem;
  font-size: 0.8rem;
  font-weight: 700;
  border-radius: 30px;
  letter-spacing: 1px;
  box-shadow: 0 4px 10px rgba(25, 195, 125, 0.3);
}

.pricing-header {
  text-align: center;
  margin-bottom: 1.75rem;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 1.5rem;
}

.pricing-name {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-title);
  margin-bottom: 0.25rem;
}

.pricing-desc {
  font-size: 0.875rem;
  color: var(--text-light);
  min-height: 40px;
}

.pricing-price {
  margin: 1.25rem 0;
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--primary-hover);
  display: flex;
  align-items: baseline;
  justify-content: center;
}

.pricing-price span {
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-light);
  margin-left: 0.25rem;
}

.pricing-features {
  margin-bottom: 2rem;
  flex-grow: 1;
}

.pricing-features li {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.85rem;
  font-size: 0.95rem;
}

.pricing-features svg {
  color: var(--primary);
  flex-shrink: 0;
}

.pricing-card .btn {
  width: 100%;
}

.pricing-footer-note {
  text-align: center;
  margin-top: 3rem;
  color: var(--text-light);
  font-size: 0.9rem;
  padding: 1rem;
  background-color: var(--bg-card);
  border-radius: 10px;
  border: 1px solid var(--border-color);
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

/* --- Tutorials Section --- */
.tutorials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
}

.tutorial-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 2rem;
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
}

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

.tutorial-title-box {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.tutorial-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background-color: var(--accent-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
}

.tutorial-card p {
  font-size: 0.925rem;
  color: var(--text-light);
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

.tutorial-card .btn {
  width: 100%;
}

/* --- Reviews/Evaluation Section --- */
.reviews-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.reviews-intro h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.reviews-intro p {
  margin-bottom: 1.5rem;
  font-size: 1.05rem;
}

.reviews-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

.review-item {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
  transition: transform 0.25s ease;
}

.review-item:hover {
  transform: translateX(5px);
  border-left: 4px solid var(--primary);
}

.review-item h4 {
  margin-bottom: 0.5rem;
  color: var(--text-title);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.review-item h4::before {
  content: '✦';
  color: var(--primary);
}

.review-item p {
  font-size: 0.925rem;
  color: var(--text-body);
}

/* --- Articles Section --- */
.articles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 2rem;
}

.article-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  transition: all 0.3s cubic-bezier(0.165, 0.84, 0.44, 1);
}

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

.article-card-content {
  padding: 2rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.article-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-size: 0.8rem;
  color: var(--text-light);
  margin-bottom: 0.75rem;
}

.article-tag {
  background-color: var(--accent-light);
  color: var(--primary-hover);
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
  font-weight: 600;
}

.article-card h3 {
  font-size: 1.2rem;
  margin-bottom: 0.75rem;
  line-height: 1.4;
  color: var(--text-title);
}

.article-card h3 a {
  color: var(--text-title);
}

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

.article-excerpt {
  font-size: 0.9rem;
  color: var(--text-body);
  margin-bottom: 1.5rem;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  flex-grow: 1;
}

.article-readmore {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--primary);
}

.article-readmore:hover {
  gap: 0.5rem;
}

/* --- Testimonials Section --- */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.testimonial-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 2rem;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
}

.testimonial-card::after {
  content: '“';
  position: absolute;
  top: 1rem;
  right: 1.5rem;
  font-size: 4rem;
  color: rgba(25, 195, 125, 0.08);
  font-family: Georgia, serif;
  line-height: 1;
}

.testimonial-content {
  font-size: 0.95rem;
  color: var(--text-body);
  margin-bottom: 1.5rem;
  font-style: italic;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.author-avatar {
  width: 42px;
  height: 42px;
  background: linear-gradient(135deg, var(--accent-light), var(--primary));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: bold;
  font-size: 0.9rem;
}

.author-info h4 {
  font-size: 0.95rem;
  color: var(--text-title);
}

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

/* --- FAQ Section --- */
.faq-list {
  max-width: 850px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.faq-item {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: border-color 0.3s ease;
}

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

.faq-item summary {
  padding: 1.25rem 1.5rem;
  font-weight: 600;
  color: var(--text-title);
  cursor: pointer;
  outline: none;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  user-select: none;
  font-size: 1.05rem;
}

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

.faq-icon-toggle {
  width: 18px;
  height: 18px;
  position: relative;
  transition: transform 0.3s ease;
}

.faq-icon-toggle::before,
.faq-icon-toggle::after {
  content: '';
  position: absolute;
  background-color: var(--primary);
  transition: transform 0.3s ease;
}

.faq-icon-toggle::before {
  top: 8px;
  left: 0;
  width: 18px;
  height: 2px;
}

.faq-icon-toggle::after {
  top: 0;
  left: 8px;
  width: 2px;
  height: 18px;
}

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

.faq-content {
  padding: 0 1.5rem 1.5rem 1.5rem;
  color: var(--text-body);
  font-size: 0.95rem;
  border-top: 1px solid rgba(25, 195, 125, 0.05);
  animation: slideDown 0.3s ease;
}

/* --- Keyword Cloud Section --- */
.keywords-section {
  padding: 4rem 0;
  background-color: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
}

.keywords-container h3 {
  font-size: 1.25rem;
  margin-bottom: 1.5rem;
  text-align: center;
}

.keywords-cloud {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.5rem 0.75rem;
  max-width: 1000px;
  margin: 0 auto;
}

.keyword-tag {
  background-color: var(--bg-card);
  color: var(--text-body);
  border: 1px solid var(--border-color);
  padding: 0.35rem 0.8rem;
  border-radius: 4px;
  font-size: 0.85rem;
  transition: all 0.2s ease;
}

.keyword-tag:hover {
  background-color: var(--accent-light);
  color: var(--primary-hover);
  border-color: var(--primary);
  transform: translateY(-1.5px);
}

/* --- Footer --- */
.footer {
  background-color: #102A23;
  color: rgba(255, 255, 255, 0.75);
  padding: 5rem 0 2rem 0;
  border-top: 4px solid var(--primary);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr 1.2fr 0.8fr;
  gap: 3rem;
  margin-bottom: 3.5rem;
}

.footer-col h4 {
  color: #FFFFFF;
  margin-bottom: 1.5rem;
  font-size: 1.1rem;
  position: relative;
  padding-bottom: 0.5rem;
}

.footer-col h4::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 30px;
  height: 2px;
  background-color: var(--primary);
}

.footer-about p {
  font-size: 0.9rem;
  line-height: 1.7;
  margin-bottom: 1.5rem;
}

.footer-links li {
  margin-bottom: 0.75rem;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.75);
  font-size: 0.9rem;
}

.footer-links a:hover {
  color: var(--primary);
  padding-left: 4px;
}

.footer-disclaimer {
  font-size: 0.825rem;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.55);
  background-color: rgba(0, 0, 0, 0.15);
  padding: 1.25rem;
  border-radius: 8px;
  border-left: 3px solid var(--primary);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.875rem;
}

.footer-copyright {
  color: rgba(255, 255, 255, 0.5);
}

/* --- Article Details Layout Styling --- */
.article-header {
  padding-top: calc(var(--header-height) + 3rem);
  padding-bottom: 3rem;
  background: radial-gradient(circle at top right, rgba(0, 184, 148, 0.05), transparent 40%), var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
}

.article-title-container {
  max-width: 900px;
  margin: 0 auto;
}

.breadcrumbs {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: var(--text-light);
  margin-bottom: 1.5rem;
}

.breadcrumbs a {
  color: var(--text-light);
}

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

.article-h1 {
  font-size: 2.4rem;
  color: var(--text-title);
  margin-bottom: 1.5rem;
  line-height: 1.3;
}

.article-meta-large {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.5rem;
  font-size: 0.9rem;
  color: var(--text-light);
  border-top: 1px solid rgba(25, 195, 125, 0.1);
  padding-top: 1.25rem;
}

.article-body-layout {
  display: grid;
  grid-template-columns: 1.8fr 0.7fr;
  gap: 3.5rem;
  padding: 4rem 0;
}

.article-main-content {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 3rem 2.5rem;
  box-shadow: var(--shadow-sm);
}

.article-introduction {
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--text-title);
  line-height: 1.7;
  padding: 1.25rem 1.5rem;
  background-color: var(--bg-primary);
  border-left: 4px solid var(--primary);
  border-radius: 0 8px 8px 0;
  margin-bottom: 2rem;
}

/* Typography elements in Article body */
.article-richtext h2 {
  font-size: 1.6rem;
  text-align: left;
  margin-top: 2.5rem;
  margin-bottom: 1.25rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid rgba(25, 195, 125, 0.15);
}

.article-richtext h2::after {
  display: none;
}

.article-richtext h3 {
  font-size: 1.25rem;
  margin-top: 1.75rem;
  margin-bottom: 0.75rem;
}

.article-richtext p {
  font-size: 1.05rem;
  color: var(--text-body);
  margin-bottom: 1.5rem;
  line-height: 1.75;
}

.article-richtext ul, .article-richtext ol {
  margin-bottom: 1.5rem;
  padding-left: 1.5rem;
}

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

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

.article-richtext li {
  margin-bottom: 0.5rem;
  font-size: 1.05rem;
}

.article-richtext blockquote {
  border-left: 4px solid var(--accent);
  background-color: var(--bg-secondary);
  padding: 1rem 1.5rem;
  margin: 1.5rem 0;
  border-radius: 0 8px 8px 0;
  font-style: italic;
}

.article-richtext blockquote p {
  margin-bottom: 0;
}

.article-richtext a {
  text-decoration: underline;
  font-weight: 500;
}

.article-richtext table {
  width: 100%;
  border-collapse: collapse;
  margin: 2rem 0;
  font-size: 0.95rem;
}

.article-richtext th, .article-richtext td {
  border: 1px solid var(--border-color);
  padding: 0.75rem 1rem;
  text-align: left;
}

.article-richtext th {
  background-color: var(--bg-secondary);
  font-weight: 700;
  color: var(--text-title);
}

.article-richtext tr:nth-child(even) {
  background-color: rgba(243, 255, 248, 0.5);
}

/* Article Sidebar */
.article-sidebar {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.sidebar-widget {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 1.75rem;
  box-shadow: var(--shadow-sm);
}

.sidebar-widget h3 {
  font-size: 1.15rem;
  margin-bottom: 1.25rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--accent-light);
  color: var(--text-title);
}

.sidebar-cta {
  background: linear-gradient(135deg, #102A23, #16A36A);
  color: #FFFFFF;
  border: none;
}

.sidebar-cta h3 {
  color: #FFFFFF;
  border-bottom: 1px solid rgba(255, 255, 255, 0.15);
  padding-bottom: 0.75rem;
  margin-bottom: 1rem;
}

.sidebar-cta p {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 1.5rem;
}

.sidebar-cta .btn {
  width: 100%;
}

.sidebar-list {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.sidebar-list-item a {
  color: var(--text-body);
  font-size: 0.925rem;
  display: block;
  line-height: 1.4;
}

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

/* Related Recommendations (Bottom of Article) */
.related-recommendations {
  margin-top: 3.5rem;
  padding-top: 2.5rem;
  border-top: 1px solid rgba(25, 195, 125, 0.15);
}

.related-recommendations h3 {
  font-size: 1.35rem;
  margin-bottom: 1.5rem;
}

.related-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

.related-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
  transition: all 0.25s ease;
}

.related-card:hover {
  transform: translateY(-3px);
  border-color: var(--primary);
  box-shadow: var(--shadow-md);
}

.related-card h4 {
  font-size: 1.05rem;
  margin-bottom: 0.5rem;
}

.related-card h4 a {
  color: var(--text-title);
}

.related-card h4 a:hover {
  color: var(--primary);
}

.related-card p {
  font-size: 0.85rem;
  color: var(--text-light);
  margin-bottom: 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* --- Animations --- */
@keyframes pulse {
  0% {
    box-shadow: 0 0 4px var(--primary);
    transform: scale(0.95);
  }
  100% {
    box-shadow: 0 0 12px var(--primary);
    transform: scale(1.05);
  }
}

@keyframes shine {
  0% {
    left: -100%;
    top: -100%;
  }
  100% {
    left: 100%;
    top: 100%;
  }
}

@keyframes float {
  0% {
    transform: translateY(0px) rotate(0deg);
  }
  50% {
    transform: translateY(-8px) rotate(3deg);
  }
  100% {
    transform: translateY(0px) rotate(0deg);
  }
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* --- Responsive Media Queries --- */
@media (max-width: 1024px) {
  h1 { font-size: 2rem; }
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  .hero-content {
    text-align: center;
  }
  .hero-desc {
    margin-left: auto;
    margin-right: auto;
  }
  .hero-tags {
    justify-content: center;
  }
  .hero-btns {
    justify-content: center;
  }
  .pricing-grid {
    grid-template-columns: 1fr;
    max-width: 550px;
    margin: 0 auto;
    gap: 2.5rem;
  }
  .testimonials-grid {
    grid-template-columns: 1fr;
    max-width: 550px;
    margin: 0 auto;
    gap: 1.5rem;
  }
  .footer-grid {
    grid-template-columns: 1.2fr 0.8fr;
    gap: 2.5rem;
  }
  .article-body-layout {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
}

@media (max-width: 768px) {
  :root {
    --header-height: 60px;
  }
  section {
    padding: 3.5rem 0;
  }
  
  /* Responsive Navigation Menu */
  .nav-toggle {
    display: flex;
  }
  
  .nav-menu {
    position: fixed;
    top: var(--header-height);
    left: -100%;
    width: 100%;
    height: calc(100vh - var(--header-height));
    background-color: var(--bg-card);
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    padding: 2.5rem 1.5rem;
    gap: 1.5rem;
    box-shadow: 0 10px 15px rgba(0, 0, 0, 0.05);
    transition: left 0.3s cubic-bezier(0.165, 0.84, 0.44, 1);
    overflow-y: auto;
    z-index: 999;
  }
  
  .nav-menu.active {
    left: 0;
  }
  
  .nav-link {
    font-size: 1.15rem;
    width: 100%;
    text-align: center;
    padding: 0.6rem 0;
  }
  
  .nav-btn {
    width: 100%;
    margin-left: 0;
    margin-top: 1rem;
  }

  .nav-toggle.active span:nth-child(1) {
    transform: translateY(8.5px) rotate(45deg);
  }

  .nav-toggle.active span:nth-child(2) {
    opacity: 0;
  }

  .nav-toggle.active span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
  }

  .cta-banner {
    flex-direction: column;
    text-align: center;
    padding: 2.5rem 1.75rem;
  }

  .cta-banner .btn {
    width: 100%;
  }

  .reviews-container {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  
  .related-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}