/* ==========================================================================
   Kuromi VPN / 库洛米官网 - 核心设计系统与响应式样式表
   Domain: kuromisvpn.lol
   ========================================================================== */

:root {
  --bg-main: #060913;
  --bg-surface: #0c101d;
  --bg-card: #0f1629;
  --bg-card-hover: #131c35;
  --bg-glass: rgba(15, 22, 41, 0.75);
  --border-color: #1e293b;
  --border-glow: #38bdf840;
  
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --primary-glow: rgba(37, 99, 235, 0.4);
  
  --cyan: #38bdf8;
  --indigo: #6366f1;
  --purple: #a855f7;
  --rose: #f43f5e;
  --amber: #f59e0b;
  --emerald: #10b981;

  --text-main: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --text-link: #38bdf8;

  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.2), 0 4px 6px -2px rgba(0, 0, 0, 0.1);
  --shadow-glow: 0 0 25px rgba(56, 189, 248, 0.25);
  --shadow-blue-btn: 0 4px 14px 0 rgba(37, 99, 235, 0.39);
}

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

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

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  background-image: 
    radial-gradient(circle at 50% 0%, rgba(37, 99, 235, 0.12) 0%, transparent 60%),
    radial-gradient(circle at 100% 40%, rgba(168, 85, 247, 0.06) 0%, transparent 40%),
    radial-gradient(circle at 0% 70%, rgba(56, 189, 248, 0.06) 0%, transparent 50%);
  background-attachment: fixed;
}

a {
  color: inherit;
  text-decoration: none;
  transition: all 0.2s ease;
}

ul, ol {
  list-style: none;
}

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

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

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ==========================================================================
   Navigation Bar
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(6, 9, 19, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(30, 41, 59, 0.8);
}

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

.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-icon-box {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, #1e293b, #0f172a);
  border: 1px solid rgba(56, 189, 248, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 12px rgba(56, 189, 248, 0.25);
}

.brand-name {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  background: linear-gradient(90deg, #ffffff, #38bdf8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.brand-domain {
  font-size: 0.75rem;
  font-family: var(--font-mono);
  color: var(--cyan);
  background: rgba(56, 189, 248, 0.1);
  padding: 2px 6px;
  border-radius: 4px;
  margin-left: 6px;
}

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

.nav-link {
  font-size: 0.938rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color 0.2s ease;
}

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

.nav-cta-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: linear-gradient(135deg, #2563eb, #1d4ed8);
  color: #ffffff;
  font-size: 0.938rem;
  font-weight: 600;
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-blue-btn);
  transition: transform 0.2s, box-shadow 0.2s;
}

.nav-cta-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(37, 99, 235, 0.5);
}

/* Mobile Hamburger */
.mobile-menu-btn {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 28px;
  height: 20px;
}

.mobile-menu-btn span {
  display: block;
  height: 2px;
  width: 100%;
  background: #ffffff;
  border-radius: 2px;
  transition: all 0.3s ease;
}

.mobile-menu {
  display: none;
  flex-direction: column;
  gap: 16px;
  padding: 20px 24px 28px;
  background: #090d19;
  border-bottom: 1px solid var(--border-color);
}

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

.mobile-menu .nav-link {
  padding: 8px 0;
  font-size: 1.05rem;
}

.mobile-menu .nav-cta-btn {
  width: 100%;
  margin-top: 8px;
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero-section {
  padding: 72px 0 60px;
  position: relative;
  text-align: center;
}

.hero-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(56, 189, 248, 0.1);
  border: 1px solid rgba(56, 189, 248, 0.25);
  color: var(--cyan);
  font-size: 0.85rem;
  font-weight: 600;
  padding: 6px 16px;
  border-radius: var(--radius-full);
  margin-bottom: 24px;
}

.hero-title {
  font-size: 3rem;
  line-height: 1.15;
  font-weight: 900;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.hero-title span.highlight {
  background: linear-gradient(135deg, #38bdf8 0%, #818cf8 50%, #c084fc 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-desc {
  font-size: 1.15rem;
  color: var(--text-secondary);
  max-width: 760px;
  margin: 0 auto 36px;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 50px;
}

.btn-hero-primary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: linear-gradient(135deg, #2563eb, #1d4ed8);
  color: #ffffff;
  font-size: 1.05rem;
  font-weight: 700;
  padding: 14px 32px;
  border-radius: var(--radius-sm);
  box-shadow: 0 4px 20px rgba(37, 99, 235, 0.45);
  transition: all 0.25s ease;
}

.btn-hero-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(37, 99, 235, 0.65);
}

.btn-hero-secondary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: rgba(30, 41, 59, 0.5);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  font-size: 1.05rem;
  font-weight: 600;
  padding: 14px 28px;
  border-radius: var(--radius-sm);
  transition: all 0.25s ease;
}

.btn-hero-secondary:hover {
  background: rgba(30, 41, 59, 0.9);
  border-color: var(--cyan);
}

/* Hero Stats Bar */
.hero-stats-band {
  background: rgba(15, 22, 41, 0.7);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 24px 32px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  text-align: center;
  box-shadow: var(--shadow-md);
}

.stat-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.stat-num {
  font-size: 1.85rem;
  font-weight: 800;
  font-family: var(--font-mono);
  background: linear-gradient(135deg, #ffffff, #38bdf8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.stat-label {
  font-size: 0.813rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ==========================================================================
   Section Headers
   ========================================================================== */
.section-header {
  text-align: center;
  margin-bottom: 50px;
}

.section-tag {
  display: inline-block;
  font-size: 0.813rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--cyan);
  background: rgba(56, 189, 248, 0.08);
  border: 1px solid rgba(56, 189, 248, 0.2);
  padding: 4px 12px;
  border-radius: var(--radius-full);
  margin-bottom: 12px;
}

.section-title {
  font-size: 2.25rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 14px;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 680px;
  margin: 0 auto;
}

/* ==========================================================================
   PRICING SECTION (MATCHING SCREENSHOT ACCURATELY)
   ========================================================================== */
.pricing-section {
  padding: 80px 0;
  position: relative;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  max-width: 1100px;
  margin: 0 auto;
}

.pricing-card {
  background-color: #0c101d;
  border: 1px solid #1a2333;
  border-radius: 16px;
  padding: 36px 30px;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.pricing-card:hover {
  transform: translateY(-4px);
  border-color: #2b3952;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.4);
}

/* Card Stack Icon */
.plan-icon-wrapper {
  margin-bottom: 22px;
  width: 48px;
  height: 48px;
}

/* Plan Title */
.plan-name {
  font-size: 1.15rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 16px;
}

/* Plan Price */
.plan-price-row {
  margin-bottom: 24px;
}

.plan-price {
  font-size: 2.5rem;
  font-weight: 800;
  color: #ffffff;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.plan-price .currency {
  font-size: 1.85rem;
  margin-right: 4px;
  font-weight: 700;
}

.plan-period {
  font-size: 0.875rem;
  color: #94a3b8;
  margin-top: 6px;
}

/* Buy Button matching screenshot */
.plan-btn {
  display: block;
  width: 100%;
  text-align: center;
  background-color: #1677ff;
  color: #ffffff;
  font-size: 0.95rem;
  font-weight: 600;
  padding: 12px 0;
  border-radius: 8px;
  margin-bottom: 30px;
  transition: background-color 0.2s ease, box-shadow 0.2s ease;
  box-shadow: 0 2px 8px rgba(22, 119, 255, 0.35);
}

.plan-btn:hover {
  background-color: #4096ff;
  box-shadow: 0 4px 14px rgba(22, 119, 255, 0.5);
}

/* Specs List matching screenshot */
.plan-features {
  display: flex;
  flex-direction: column;
  gap: 14px;
  font-size: 0.92rem;
  color: #cbd5e1;
  line-height: 1.5;
}

.plan-features li {
  position: relative;
  padding-left: 0;
  white-space: nowrap;
}

/* Note under pricing */
.pricing-notice {
  text-align: center;
  margin-top: 36px;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.pricing-notice a {
  color: var(--cyan);
  text-decoration: underline;
}

/* ==========================================================================
   Core Features Section
   ========================================================================== */
.features-section {
  padding: 80px 0;
  background: rgba(12, 16, 29, 0.4);
}

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

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 28px;
  transition: transform 0.25s, border-color 0.25s;
}

.feature-card:hover {
  transform: translateY(-3px);
  border-color: var(--cyan);
}

.feature-icon-box {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  background: rgba(56, 189, 248, 0.1);
  border: 1px solid rgba(56, 189, 248, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  color: var(--cyan);
}

.feature-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 10px;
}

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

/* ==========================================================================
   Client Matrix & Tutorials
   ========================================================================== */
.clients-section {
  padding: 80px 0;
}

.clients-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.client-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.client-icon {
  width: 52px;
  height: 52px;
  margin-bottom: 16px;
}

.client-card h4 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 6px;
}

.client-card .client-platform {
  font-size: 0.78rem;
  color: var(--cyan);
  font-family: var(--font-mono);
  margin-bottom: 10px;
}

.client-card p {
  font-size: 0.83rem;
  color: var(--text-muted);
  line-height: 1.5;
  margin-bottom: 16px;
}

.client-link {
  margin-top: auto;
  font-size: 0.82rem;
  color: var(--cyan);
  font-weight: 600;
}

.client-link:hover {
  text-decoration: underline;
}

/* ==========================================================================
   Articles Knowledge Base Section
   ========================================================================== */
.articles-section {
  padding: 80px 0;
  background: rgba(12, 16, 29, 0.4);
}

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

.article-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 26px;
  display: flex;
  flex-direction: column;
  transition: transform 0.25s, border-color 0.25s;
}

.article-card:hover {
  transform: translateY(-4px);
  border-color: rgba(56, 189, 248, 0.5);
}

.article-badge-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}

.article-category {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--cyan);
  background: rgba(56, 189, 248, 0.1);
  padding: 3px 8px;
  border-radius: 4px;
}

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

.article-card-title {
  font-size: 1.08rem;
  font-weight: 700;
  line-height: 1.45;
  margin-bottom: 12px;
  color: var(--text-main);
  transition: color 0.2s;
}

.article-card:hover .article-card-title {
  color: var(--cyan);
}

.article-card-excerpt {
  font-size: 0.86rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 18px;
  flex-grow: 1;
}

.article-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 14px;
  border-top: 1px solid rgba(30, 41, 59, 0.6);
  font-size: 0.813rem;
  color: var(--text-muted);
}

.article-read-link {
  color: var(--cyan);
  font-weight: 600;
}

/* ==========================================================================
   User Testimonials (用户评价)
   ========================================================================== */
.reviews-section {
  padding: 80px 0;
}

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

.review-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 26px;
  display: flex;
  flex-direction: column;
}

.review-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 16px;
}

.review-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, #38bdf8, #818cf8);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  color: #ffffff;
  font-size: 1.1rem;
}

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

.review-name {
  font-weight: 700;
  font-size: 0.95rem;
}

.review-role {
  font-size: 0.78rem;
  color: var(--text-muted);
}

.review-stars {
  color: #f59e0b;
  margin-bottom: 12px;
  font-size: 0.95rem;
}

.review-quote {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.6;
  font-style: normal;
}

.review-plan-badge {
  margin-top: 16px;
  align-self: flex-start;
  font-size: 0.72rem;
  color: #10b981;
  background: rgba(16, 185, 129, 0.1);
  padding: 2px 8px;
  border-radius: 4px;
  border: 1px solid rgba(16, 185, 129, 0.2);
}

/* ==========================================================================
   FAQ Section
   ========================================================================== */
.faq-section {
  padding: 80px 0;
  background: rgba(12, 16, 29, 0.4);
}

.faq-list {
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

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

.faq-item.active {
  border-color: rgba(56, 189, 248, 0.5);
}

.faq-question {
  width: 100%;
  text-align: left;
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-main);
  background: none;
  cursor: pointer;
}

.faq-icon {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.05);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  color: var(--cyan);
  transition: transform 0.3s ease;
  flex-shrink: 0;
}

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

.faq-answer {
  display: none;
  padding: 0 24px 22px;
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.7;
  border-top: 1px solid rgba(30, 41, 59, 0.4);
  padding-top: 16px;
}

.faq-item.active .faq-answer {
  display: block;
}

/* ==========================================================================
   Banner CTA Before Footer
   ========================================================================== */
.cta-banner {
  margin: 60px auto 80px;
  padding: 48px 36px;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.25), rgba(168, 85, 247, 0.2));
  border: 1px solid rgba(56, 189, 248, 0.3);
  border-radius: var(--radius-lg);
  text-align: center;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.cta-banner h2 {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 12px;
}

.cta-banner p {
  color: var(--text-secondary);
  font-size: 1.05rem;
  max-width: 650px;
  margin: 0 auto 28px;
}

/* ==========================================================================
   FOOTER SECTION & PBN TRANSMISSION PIPELINE
   Core Task 2: Exact dofollow SEO link injection
   ========================================================================== */
.site-footer {
  background: #04060c;
  border-top: 1px solid var(--border-color);
  padding: 60px 0 32px;
  color: var(--text-muted);
  font-size: 0.85rem;
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.2fr;
  gap: 40px;
  margin-bottom: 48px;
}

.footer-brand h4 {
  font-size: 1.15rem;
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 12px;
}

.footer-brand p {
  line-height: 1.6;
  margin-bottom: 16px;
}

.footer-col h5 {
  font-size: 0.95rem;
  font-weight: 700;
  color: #f1f5f9;
  margin-bottom: 16px;
}

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

.footer-links a {
  color: var(--text-secondary);
  transition: color 0.2s;
}

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

/* Footer Bottom */
.footer-bottom {
  text-align: center;
  padding-top: 24px;
  border-top: 1px solid rgba(30, 41, 59, 0.6);
  font-size: 0.78rem;
  color: #475569;
  line-height: 1.8;
}

/* ==========================================================================
   Article Detail Page Styles
   ========================================================================== */
.article-header {
  padding: 40px 0 30px;
  background: rgba(12, 16, 29, 0.6);
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 40px;
}

.breadcrumbs {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 16px;
}

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

.article-main-title {
  font-size: 2.25rem;
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 18px;
}

.article-meta-bar {
  display: flex;
  align-items: center;
  gap: 18px;
  font-size: 0.85rem;
  color: var(--text-muted);
  flex-wrap: wrap;
}

.article-content {
  max-width: 860px;
  margin: 0 auto;
  font-size: 1.05rem;
  line-height: 1.8;
  color: #cbd5e1;
  padding-bottom: 60px;
}

.article-content h2 {
  font-size: 1.65rem;
  font-weight: 800;
  color: #ffffff;
  margin: 40px 0 18px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border-color);
}

.article-content h3 {
  font-size: 1.3rem;
  font-weight: 700;
  color: #f1f5f9;
  margin: 28px 0 12px;
}

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

.article-content ul, .article-content ol {
  margin: 16px 0 24px 20px;
}

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

.keyword-highlight {
  color: #38bdf8;
  font-weight: 600;
}

.article-callout {
  background: rgba(15, 22, 41, 0.85);
  border-left: 4px solid var(--cyan);
  padding: 18px 24px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin: 28px 0;
  color: var(--text-secondary);
}

.article-table {
  width: 100%;
  border-collapse: collapse;
  margin: 28px 0;
  font-size: 0.95rem;
}

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

.article-table th {
  background: #0f1629;
  color: #ffffff;
}

.article-table tr:nth-child(even) {
  background: rgba(15, 22, 41, 0.4);
}

.article-internal-nav {
  background: #0c101d;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 24px;
  margin-top: 40px;
}

.article-internal-nav h4 {
  font-size: 1.1rem;
  margin-bottom: 14px;
  color: #ffffff;
}

.article-internal-nav ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.article-internal-nav a {
  color: var(--cyan);
}

.article-internal-nav a:hover {
  text-decoration: underline;
}

/* ==========================================================================
   Responsive Breakpoints
   ========================================================================== */
@media (max-width: 1024px) {
  .pricing-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
  }
  .pricing-card {
    padding: 28px 20px;
  }
  .plan-price {
    font-size: 2.1rem;
  }
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .articles-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .clients-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .reviews-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-top {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
}

@media (max-width: 768px) {
  .nav-links, .nav-cta-btn {
    display: none;
  }
  .mobile-menu-btn {
    display: flex;
  }
  .hero-title {
    font-size: 2.15rem;
  }
  .hero-stats-band {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    padding: 20px;
  }
  .pricing-grid {
    grid-template-columns: 1fr;
    max-width: 440px;
  }
  .features-grid {
    grid-template-columns: 1fr;
  }
  .articles-grid {
    grid-template-columns: 1fr;
  }
  .clients-grid {
    grid-template-columns: 1fr;
  }
  .reviews-grid {
    grid-template-columns: 1fr;
  }
  .footer-top {
    grid-template-columns: 1fr;
  }
  .article-main-title {
    font-size: 1.75rem;
  }
}