/* ==========================================================================
   NPC Cloud (npccloud.cyou) - Apple White Minimalist & High-Tech Style
   Design Theme: 极简苹果白 (商务、稳定、清爽) + 全局纯黑边框 (2px Solid Black Frames)
   ========================================================================== */

:root {
  --bg-primary: #ffffff;
  --bg-secondary: #fbfbfd;
  --bg-tertiary: #f5f5f7;
  --text-main: #000000;
  --text-muted: #555555;
  --text-light: #888888;
  --border-black: #000000;
  --border-thin: #1d1d1f;
  --accent-color: #000000;
  --accent-hover: #222222;
  --accent-gold: #ffb703;
  --accent-green: #00b4d8;
  --card-shadow: 4px 4px 0px #000000;
  --card-shadow-hover: 6px 6px 0px #000000;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --font-sans: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "Helvetica Neue", Arial, sans-serif;
  --font-mono: "SF Mono", "Fira Code", "Courier New", monospace;
  --transition-fast: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-smooth: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

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

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

body {
  font-family: var(--font-sans);
  background-color: var(--bg-secondary);
  color: var(--text-main);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Typography & Headings */
h1, h2, h3, h4, h5, h6 {
  color: var(--text-main);
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.02em;
}

h1 {
  font-size: clamp(2rem, 4vw + 1rem, 3.2rem);
  font-weight: 900;
  margin-bottom: 1.2rem;
}

h2 {
  font-size: clamp(1.6rem, 3vw + 0.8rem, 2.4rem);
  margin-bottom: 1rem;
}

h3 {
  font-size: clamp(1.3rem, 2.2vw + 0.5rem, 1.8rem);
  margin-bottom: 0.8rem;
}

h4 {
  font-size: clamp(1.1rem, 1.8vw + 0.4rem, 1.4rem);
  margin-bottom: 0.6rem;
}

p {
  margin-bottom: 1rem;
  color: var(--text-muted);
  font-size: 1.05rem;
}

a {
  color: var(--text-main);
  text-decoration: none;
  transition: var(--transition-fast);
}

a:hover {
  text-decoration: underline;
}

/* Black Frame Box Component System - 所有框架都改为黑框 */
.black-frame {
  background: var(--bg-primary);
  border: 2px solid var(--border-black);
  border-radius: var(--radius-md);
  box-shadow: var(--card-shadow);
  transition: var(--transition-smooth);
}

.black-frame:hover {
  box-shadow: var(--card-shadow-hover);
  transform: translateY(-2px);
}

.black-frame-sharp {
  background: var(--bg-primary);
  border: 2px solid var(--border-black);
  border-radius: 0px;
  box-shadow: 4px 4px 0px #000000;
}

/* Buttons */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1.8rem;
  font-weight: 700;
  font-size: 1.05rem;
  color: #ffffff;
  background-color: var(--border-black);
  border: 2px solid var(--border-black);
  border-radius: var(--radius-sm);
  cursor: pointer;
  box-shadow: 3px 3px 0px #333333;
  transition: var(--transition-fast);
  text-decoration: none !important;
}

.btn-primary:hover {
  background-color: var(--accent-hover);
  box-shadow: 5px 5px 0px #000000;
  transform: translateY(-2px);
  color: #ffffff;
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1.8rem;
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--text-main);
  background-color: #ffffff;
  border: 2px solid var(--border-black);
  border-radius: var(--radius-sm);
  cursor: pointer;
  box-shadow: 3px 3px 0px #000000;
  transition: var(--transition-fast);
  text-decoration: none !important;
}

.btn-outline:hover {
  background-color: #000000;
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: 5px 5px 0px #000000;
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.9rem;
}

/* Layout Utilities */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section {
  padding: 4.5rem 0;
  border-bottom: 2px solid var(--border-black);
  background: var(--bg-primary);
}

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

.section-header {
  text-align: center;
  max-width: 800px;
  margin: 0 auto 3rem auto;
}

.section-header p {
  font-size: 1.15rem;
  color: var(--text-muted);
}

.badge {
  display: inline-block;
  padding: 0.3rem 0.8rem;
  font-size: 0.8rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-main);
  background: #ffffff;
  border: 2px solid var(--border-black);
  border-radius: 20px;
  margin-bottom: 0.8rem;
  box-shadow: 2px 2px 0px #000;
}

/* Top Announcement Bar */
.top-bar {
  background-color: #000000;
  color: #ffffff;
  font-size: 0.88rem;
  padding: 0.5rem 1rem;
  text-align: center;
  font-weight: 600;
  border-bottom: 2px solid var(--border-black);
}

.top-bar a {
  color: #ffb703;
  text-decoration: underline;
  margin-left: 0.5rem;
}

/* Header & Navigation */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 2px solid var(--border-black);
  padding: 0.8rem 0;
}

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

.logo-wrapper {
  display: flex;
  align-items: center;
  gap: 0.8rem;
}

.logo-wrapper img {
  height: 42px;
  width: auto;
  display: block;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
}

.nav-link {
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--text-main);
  position: relative;
  padding: 0.4rem 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 2px;
  background-color: var(--border-black);
  transition: width 0.25s ease;
}

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

.nav-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

/* Hero Section (H1 Brand Title) */
.hero-section {
  padding: 5rem 0 4rem 0;
  background: linear-gradient(180deg, #ffffff 0%, #f7f7f9 100%);
  border-bottom: 2px solid var(--border-black);
  position: relative;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 3rem;
  align-items: center;
}

.hero-content {
  z-index: 2;
}

.hero-h1 {
  font-size: clamp(2.2rem, 4.5vw, 3.4rem);
  font-weight: 900;
  letter-spacing: -0.03em;
  color: #000000;
  line-height: 1.15;
  margin-bottom: 1.5rem;
}

.hero-h1 span.highlight {
  background: #000000;
  color: #ffffff;
  padding: 0.1em 0.3em;
  border-radius: 4px;
  display: inline-block;
  box-shadow: 3px 3px 0px #555;
}

.hero-subtitle {
  font-size: 1.2rem;
  color: #333333;
  margin-bottom: 2rem;
  line-height: 1.7;
}

.hero-tags-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-bottom: 2.2rem;
}

.keyword-tag {
  font-size: 0.85rem;
  font-weight: 700;
  color: #000000;
  background-color: #f0f0f3;
  border: 1.5px solid #000000;
  padding: 0.3rem 0.75rem;
  border-radius: 4px;
  box-shadow: 2px 2px 0px #000000;
  transition: var(--transition-fast);
}

.keyword-tag:hover {
  background-color: #000000;
  color: #ffffff;
  transform: translateY(-1px);
}

.hero-cta-group {
  display: flex;
  align-items: center;
  gap: 1.2rem;
  flex-wrap: wrap;
}

.hero-visual {
  position: relative;
}

.hero-card {
  background: #ffffff;
  border: 2px solid #000000;
  border-radius: var(--radius-md);
  padding: 1.8rem;
  box-shadow: 6px 6px 0px #000000;
}

.hero-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 2px solid #000000;
  padding-bottom: 1rem;
  margin-bottom: 1.2rem;
}

.hero-card-title {
  font-weight: 800;
  font-size: 1.1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.status-dot {
  width: 10px;
  height: 10px;
  background-color: #10b981;
  border-radius: 50%;
  box-shadow: 0 0 8px #10b981;
  animation: pulse-green 2s infinite;
}

@keyframes pulse-green {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7); }
  70% { transform: scale(1.05); box-shadow: 0 0 0 8px rgba(16, 185, 129, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

.hero-stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.stat-item {
  border: 2px solid #000000;
  padding: 1rem;
  border-radius: var(--radius-sm);
  background: #f9f9fb;
  box-shadow: 3px 3px 0px #000000;
}

.stat-value {
  font-size: 1.6rem;
  font-weight: 900;
  color: #000000;
  font-family: var(--font-mono);
}

.stat-label {
  font-size: 0.82rem;
  font-weight: 700;
  color: #555;
  text-transform: uppercase;
}

/* ==========================================================================
   指令4: H2 套餐内容做成动态并排可以滑动的 (Horizontal Scrollable Carousel)
   ========================================================================== */
.pricing-section {
  padding: 5rem 0;
  background: #ffffff;
  border-bottom: 2px solid var(--border-black);
}

.carousel-controls {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.8rem;
  margin-bottom: 1.5rem;
}

.carousel-btn {
  width: 44px;
  height: 44px;
  border: 2px solid var(--border-black);
  background: #ffffff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1.2rem;
  font-weight: bold;
  box-shadow: 3px 3px 0px #000000;
  transition: var(--transition-fast);
}

.carousel-btn:hover {
  background: #000000;
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: 5px 5px 0px #000000;
}

.pricing-carousel-wrapper {
  position: relative;
  overflow: hidden;
  padding: 1rem 0 2rem 0;
}

.pricing-cards-container {
  display: flex;
  gap: 1.8rem;
  overflow-x: auto;
  scroll-behavior: smooth;
  scroll-snap-type: x mandatory;
  padding: 0.5rem 0.5rem 1.5rem 0.5rem;
  -webkit-overflow-scrolling: touch;
}

/* Hide scrollbar for Chrome, Safari and Opera */
.pricing-cards-container::-webkit-scrollbar {
  height: 8px;
}
.pricing-cards-container::-webkit-scrollbar-track {
  background: #f1f1f1;
  border: 1px solid #000;
  border-radius: 4px;
}
.pricing-cards-container::-webkit-scrollbar-thumb {
  background: #000;
  border-radius: 4px;
}

.plan-card {
  flex: 0 0 320px;
  scroll-snap-align: start;
  background: #ffffff;
  border: 2px solid var(--border-black);
  border-radius: var(--radius-md);
  padding: 2rem 1.8rem;
  box-shadow: 5px 5px 0px #000000;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
  transition: var(--transition-smooth);
}

.plan-card:hover {
  transform: translateY(-4px);
  box-shadow: 8px 8px 0px #000000;
}

.plan-card.popular {
  background: #fafafa;
  border: 3px solid #000000;
  box-shadow: 7px 7px 0px #000000;
}

.popular-badge {
  position: absolute;
  top: -14px;
  right: 20px;
  background: #000000;
  color: #ffffff;
  font-size: 0.78rem;
  font-weight: 800;
  padding: 0.25rem 0.8rem;
  border-radius: 20px;
  border: 1.5px solid #000000;
  letter-spacing: 0.5px;
}

.plan-header {
  border-bottom: 2px solid var(--border-black);
  padding-bottom: 1.2rem;
  margin-bottom: 1.5rem;
}

.plan-name {
  font-size: 1.4rem;
  font-weight: 900;
  margin-bottom: 0.4rem;
}

.plan-desc {
  font-size: 0.88rem;
  color: #666;
}

.plan-price-box {
  margin-bottom: 1.5rem;
  display: flex;
  align-items: baseline;
  gap: 0.3rem;
}

.plan-price-currency {
  font-size: 1.4rem;
  font-weight: 900;
  color: #000;
}

.plan-price-amount {
  font-size: 2.8rem;
  font-weight: 900;
  letter-spacing: -1px;
  line-height: 1;
  color: #000;
  font-family: var(--font-mono);
}

.plan-price-period {
  font-size: 0.9rem;
  color: #666;
  font-weight: 700;
}

.plan-features {
  list-style: none;
  margin-bottom: 2rem;
  flex-grow: 1;
}

.plan-features li {
  font-size: 0.95rem;
  font-weight: 600;
  color: #333;
  margin-bottom: 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.plan-features li::before {
  content: "✓";
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  background: #000000;
  color: #ffffff;
  border-radius: 50%;
  font-size: 0.75rem;
  font-weight: 900;
  flex-shrink: 0;
}

/* ==========================================================================
   指令5: H3 文章由上往下 顺序排列可以滑动的 我不要传统滑块的 我要科技感
   (Futuristic Tech-Inspired Vertical Dynamic Stream / Feed)
   ========================================================================== */
.articles-section {
  padding: 5rem 0;
  background: #f9f9fb;
  border-bottom: 2px solid var(--border-black);
  position: relative;
}

.tech-feed-container {
  max-width: 960px;
  margin: 0 auto;
  position: relative;
}

.tech-feed-timeline-line {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 28px;
  width: 3px;
  background: #000000;
  z-index: 1;
}

.tech-feed-list {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  position: relative;
  z-index: 2;
}

.tech-article-card {
  display: grid;
  grid-template-columns: 60px 1fr;
  gap: 1.5rem;
  align-items: start;
}

.article-node-indicator {
  width: 56px;
  height: 56px;
  background: #ffffff;
  border: 2px solid #000000;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-weight: 900;
  font-size: 1.1rem;
  box-shadow: 3px 3px 0px #000000;
  z-index: 3;
}

.tech-article-body {
  background: #ffffff;
  border: 2px solid var(--border-black);
  border-radius: var(--radius-md);
  padding: 1.8rem;
  box-shadow: 5px 5px 0px #000000;
  transition: var(--transition-smooth);
}

.tech-article-body:hover {
  transform: translateX(4px);
  box-shadow: 8px 8px 0px #000000;
}

.article-tech-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.8rem;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.article-code-tag {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 800;
  color: #000000;
  background: #eee;
  padding: 0.2rem 0.6rem;
  border: 1px solid #000000;
  border-radius: 4px;
}

.article-date {
  font-size: 0.85rem;
  color: #777;
  font-weight: 600;
}

.article-title-link {
  font-size: 1.35rem;
  font-weight: 800;
  color: #000;
  display: block;
  margin-bottom: 0.8rem;
  line-height: 1.3;
}

.article-title-link:hover {
  color: #222;
  text-decoration: underline;
}

.article-excerpt {
  font-size: 0.98rem;
  color: #444;
  margin-bottom: 1.2rem;
  line-height: 1.65;
}

.article-footer-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1.5px dashed #000000;
  padding-top: 1rem;
  margin-top: 1rem;
}

.article-keywords-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.article-kw-chip {
  font-size: 0.78rem;
  font-weight: 700;
  background: #ffffff;
  border: 1px solid #000;
  padding: 0.15rem 0.5rem;
  border-radius: 3px;
}

/* ==========================================================================
   指令6: H4 添加用户评价会自动跳转的 右边添加节点测速会自动刷新的
   ========================================================================== */
.h4-interactive-section {
  padding: 5rem 0;
  background: #ffffff;
  border-bottom: 2px solid var(--border-black);
}

.h4-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
}

/* Left: Auto-jumping Testimonials */
.testimonials-box {
  background: #ffffff;
  border: 2px solid var(--border-black);
  border-radius: var(--radius-md);
  padding: 2rem;
  box-shadow: 6px 6px 0px #000000;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
  min-height: 400px;
}

.testimonials-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 2px solid #000000;
  padding-bottom: 1rem;
  margin-bottom: 1.5rem;
}

.testimonials-header h4 {
  margin-bottom: 0;
  font-size: 1.25rem;
  font-weight: 800;
}

.auto-jump-indicator {
  font-size: 0.8rem;
  font-weight: 700;
  color: #000000;
  background: #f0f0f3;
  padding: 0.25rem 0.6rem;
  border: 1.5px solid #000000;
  border-radius: 20px;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.auto-jump-indicator span.spin-dot {
  width: 8px;
  height: 8px;
  background: #000000;
  border-radius: 50%;
  animation: pulse-dot 1.5s infinite;
}

@keyframes pulse-dot {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.4); opacity: 0.5; }
}

.testimonial-card-item {
  display: none;
  animation: fadeIn 0.4s ease-in-out forwards;
}

.testimonial-card-item.active {
  display: block;
}

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

.user-profile {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.2rem;
}

.avatar-frame {
  width: 52px;
  height: 52px;
  border: 2px solid #000000;
  border-radius: 50%;
  background: #000000;
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  font-size: 1.2rem;
  box-shadow: 2px 2px 0px #333;
}

.user-info-meta h5 {
  font-size: 1.05rem;
  font-weight: 800;
}

.user-info-meta p {
  margin-bottom: 0;
  font-size: 0.82rem;
  color: #666;
}

.star-rating {
  color: #ffb703;
  font-size: 1.1rem;
  margin-bottom: 1rem;
}

.review-text {
  font-size: 1.05rem;
  color: #222222;
  line-height: 1.7;
  font-style: italic;
  background: #f9f9fb;
  border: 1.5px solid #000000;
  padding: 1.2rem;
  border-radius: 8px;
  margin-bottom: 1.5rem;
  box-shadow: 3px 3px 0px #000000;
}

.testimonial-navigation {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 2px solid #000;
  padding-top: 1rem;
}

.testimonial-dots {
  display: flex;
  gap: 0.5rem;
}

.t-dot {
  width: 12px;
  height: 12px;
  border: 1.5px solid #000;
  border-radius: 50%;
  cursor: pointer;
  background: #fff;
  transition: var(--transition-fast);
}

.t-dot.active {
  background: #000;
}

/* Right: Auto-Refreshing Node Speed Test Dashboard */
.speed-test-box {
  background: #ffffff;
  border: 2px solid var(--border-black);
  border-radius: var(--radius-md);
  padding: 2rem;
  box-shadow: 6px 6px 0px #000000;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 400px;
}

.speed-test-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 2px solid #000000;
  padding-bottom: 1rem;
  margin-bottom: 1.2rem;
}

.speed-test-header h4 {
  margin-bottom: 0;
  font-size: 1.25rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.live-refresh-badge {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 800;
  background: #000000;
  color: #ffffff;
  padding: 0.25rem 0.6rem;
  border-radius: 4px;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.refresh-spinner {
  display: inline-block;
  width: 10px;
  height: 10px;
  border: 2px solid #ffffff;
  border-top-color: transparent;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.node-list-container {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-bottom: 1.2rem;
}

.node-item-row {
  display: grid;
  grid-template-columns: 1.2fr 80px 100px 70px;
  align-items: center;
  padding: 0.65rem 0.9rem;
  background: #fbfbfd;
  border: 1.5px solid #000000;
  border-radius: 6px;
  font-size: 0.88rem;
  font-weight: 700;
  box-shadow: 2px 2px 0px #000000;
  transition: var(--transition-fast);
}

.node-item-row:hover {
  background: #ffffff;
  transform: scale(1.01);
}

.node-name {
  display: flex;
  align-items: center;
  gap: 0.5rem;

  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.node-ping {
  font-family: var(--font-mono);
  color: #000000;
  text-align: right;
}

.node-ping.ping-green { color: #059669; }
.node-ping.ping-yellow { color: #d97706; }

.node-speed {
  font-family: var(--font-mono);
  color: #000000;
  text-align: right;
}

.node-status-tag {
  font-size: 0.72rem;
  text-align: center;
  background: #000;
  color: #fff;
  padding: 0.15rem 0.4rem;
  border-radius: 3px;
}

.speed-test-footer {
  border-top: 2px solid #000;
  padding-top: 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* FAQ Section */
.faq-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.8rem;
}

.faq-item {
  background: #ffffff;
  border: 2px solid #000000;
  border-radius: var(--radius-md);
  padding: 1.8rem;
  box-shadow: 4px 4px 0px #000000;
}

.faq-question {
  font-size: 1.15rem;
  font-weight: 800;
  margin-bottom: 0.8rem;
  color: #000000;
}

.faq-answer {
  font-size: 0.98rem;
  color: #444;
  line-height: 1.65;
}

/* Footer Section */
.footer {
  background: #000000;
  color: #ffffff;
  padding: 4rem 0 2rem 0;
  border-top: 3px solid #000000;
}

.footer a {
  color: #cccccc;
}

.footer a:hover {
  color: #ffffff;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand-col p {
  color: #aaaaaa;
  margin-top: 1rem;
  font-size: 0.95rem;
}

.footer-heading {
  font-size: 1rem;
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 1.2rem;
  text-transform: uppercase;
  letter-spacing: 1px;
}

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

.footer-links li {
  margin-bottom: 0.6rem;
}

.footer-links a {
  font-size: 0.9rem;
  color: #bbbbbb;
}

.footer-bottom {
  border-top: 1px solid #333333;
  padding-top: 1.8rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.88rem;
  color: #888888;
}

/* Responsive Media Queries */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }
  .h4-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .nav-menu {
    display: none;
  }
  .tech-article-card {
    grid-template-columns: 1fr;
  }
  .article-node-indicator {
    display: none;
  }
  .tech-feed-timeline-line {
    display: none;
  }
  .faq-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
}