/* ========================================
   体育博彩策略网站 - 暗黑科技风主题
   配色：暗紫#1B1B2F 炭灰#353535 荧光青#00FFC6
   ======================================== */

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

/* CSS Variables */
:root {
  --primary-dark: #1B1B2F;
  --secondary-dark: #353535;
  --accent-cyan: #00FFC6;
  --accent-cyan-dim: rgba(0, 255, 198, 0.3);
  --accent-cyan-glow: rgba(0, 255, 198, 0.15);
  --text-primary: #E8E8E8;
  --text-secondary: #A0A0A0;
  --text-muted: #6A6A6A;
  --border-color: rgba(0, 255, 198, 0.12);
  --card-bg: rgba(53, 53, 53, 0.6);
  --card-hover-bg: rgba(53, 53, 53, 0.85);
  --danger-red: #FF4757;
  --warning-yellow: #FFC107;
  --success-green: #00FFC6;
  --font-heading: 'Rajdhani', 'Noto Sans SC', sans-serif;
  --font-body: 'Noto Sans SC', 'HarmonyOS Sans', sans-serif;
}

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

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

body {
  font-family: var(--font-body);
  background-color: var(--primary-dark);
  color: var(--text-primary);
  line-height: 1.8;
  overflow-x: hidden;
  min-height: 100vh;
}

/* Matrix Rain Canvas */
#matrix-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
  opacity: 0.06;
}

/* Main Content Wrapper */
.site-wrapper {
  position: relative;
  z-index: 1;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.3;
  color: var(--text-primary);
}

h1 { font-size: 2.5rem; margin-bottom: 1rem; }
h2 { font-size: 2rem; margin-bottom: 0.8rem; }
h3 { font-size: 1.5rem; margin-bottom: 0.6rem; }
h4 { font-size: 1.25rem; margin-bottom: 0.5rem; }
h5 { font-size: 1.1rem; margin-bottom: 0.4rem; }
h6 { font-size: 1rem; margin-bottom: 0.3rem; }

p {
  margin-bottom: 1rem;
  color: var(--text-secondary);
}

a {
  color: var(--accent-cyan);
  text-decoration: none;
  transition: all 0.3s ease;
}

a:hover {
  color: #fff;
  text-shadow: 0 0 10px var(--accent-cyan);
}

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ========================================
   HEADER & NAVIGATION
   ======================================== */
.site-header {
  background: rgba(27, 27, 47, 0.95);
  border-bottom: 1px solid var(--border-color);
  padding: 15px 0;
  position: relative;
  z-index: 100;
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.site-logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.site-logo img {
  width: 40px;
  height: 40px;
}

.site-logo span {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent-cyan);
  letter-spacing: 1px;
}

/* Desktop Nav */
.main-nav {
  display: flex;
  align-items: center;
}

.main-nav ul {
  display: flex;
  list-style: none;
  gap: 5px;
}

.main-nav ul li a {
  display: block;
  padding: 8px 16px;
  color: var(--text-secondary);
  font-size: 0.95rem;
  border-radius: 4px;
  transition: all 0.3s ease;
  white-space: nowrap;
}

.main-nav ul li a:hover,
.main-nav ul li a.active {
  color: var(--accent-cyan);
  background: var(--accent-cyan-glow);
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 5px;
  background: none;
  border: none;
}

.mobile-menu-toggle span {
  display: block;
  width: 25px;
  height: 2px;
  background: var(--accent-cyan);
  transition: all 0.3s ease;
}

/* ========================================
   BREADCRUMB
   ======================================== */
.breadcrumb {
  padding: 15px 0;
  font-size: 0.85rem;
}

.breadcrumb ol {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
}

.breadcrumb ol li {
  display: flex;
  align-items: center;
  gap: 5px;
}

.breadcrumb ol li::after {
  content: '>';
  color: var(--text-muted);
}

.breadcrumb ol li:last-child::after {
  content: '';
}

.breadcrumb ol li a {
  color: var(--text-muted);
}

.breadcrumb ol li a:hover {
  color: var(--accent-cyan);
}

.breadcrumb ol li.current {
  color: var(--accent-cyan);
}

/* ========================================
   HERO SECTION (Module 1)
   ======================================== */
.hero-section {
  position: relative;
  padding: 80px 0 60px;
  background: linear-gradient(135deg, var(--primary-dark) 0%, #0D0D1A 100%);
  border-bottom: 1px solid var(--border-color);
  overflow: hidden;
}

.hero-section::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle at 30% 50%, var(--accent-cyan-glow) 0%, transparent 50%);
  animation: heroGlow 8s ease-in-out infinite alternate;
}

@keyframes heroGlow {
  0% { transform: translate(0, 0); }
  100% { transform: translate(5%, 3%); }
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.hero-warning-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 80px;
  height: 80px;
  background: rgba(255, 193, 7, 0.15);
  border: 2px solid var(--warning-yellow);
  border-radius: 50%;
  margin-bottom: 25px;
  font-size: 2.5rem;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(255, 193, 7, 0.4); }
  50% { box-shadow: 0 0 0 20px rgba(255, 193, 7, 0); }
}

.hero-content h1 {
  font-size: 3rem;
  margin-bottom: 20px;
  background: linear-gradient(90deg, var(--accent-cyan), #fff);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-content .hero-subtitle {
  font-size: 1.2rem;
  color: var(--text-secondary);
  margin-bottom: 30px;
}

.hero-cta {
  display: inline-block;
  padding: 14px 40px;
  background: transparent;
  border: 2px solid var(--accent-cyan);
  color: var(--accent-cyan);
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 600;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.3s ease;
  text-transform: uppercase;
  letter-spacing: 2px;
}

.hero-cta:hover {
  background: var(--accent-cyan);
  color: var(--primary-dark);
  box-shadow: 0 0 30px var(--accent-cyan-dim);
}

/* ========================================
   SECTION COMMON STYLES
   ======================================== */
.section {
  padding: 60px 0;
  border-bottom: 1px solid var(--border-color);
}

.section-header {
  text-align: center;
  margin-bottom: 50px;
}

.section-header h2 {
  position: relative;
  display: inline-block;
  padding-bottom: 15px;
}

.section-header h2::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  background: var(--accent-cyan);
}

.section-header p {
  margin-top: 15px;
  font-size: 1.05rem;
}

/* ========================================
   CARD STYLES
   ======================================== */
.card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 30px;
  transition: all 0.4s ease;
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  border-radius: 8px;
  border: 1px solid transparent;
  transition: border-color 0.4s ease;
  pointer-events: none;
}

.card:hover {
  background: var(--card-hover-bg);
  transform: translateY(-5px);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
}

.card:hover::before {
  border-color: var(--accent-cyan);
  box-shadow: 0 0 15px var(--accent-cyan-dim), inset 0 0 15px var(--accent-cyan-glow);
}

.card-icon {
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-cyan-glow);
  border: 1px solid var(--accent-cyan-dim);
  border-radius: 8px;
  margin-bottom: 20px;
  font-size: 1.8rem;
}

.card h3 {
  margin-bottom: 12px;
}

.card p {
  font-size: 0.95rem;
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  margin-top: 15px;
  color: var(--accent-cyan);
  font-weight: 500;
  font-size: 0.9rem;
}

.card-link:hover {
  gap: 10px;
}

/* ========================================
   TOOLBOX GRID (Module 2)
   ======================================== */
.toolbox-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 25px;
}

.tool-card {
  text-align: center;
  padding: 35px 20px;
}

.tool-card .card-icon {
  margin: 0 auto 20px;
  width: 70px;
  height: 70px;
  font-size: 2rem;
}

/* ========================================
   PLATFORM RATING (Module 3)
   ======================================== */
.platform-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 25px;
}

.platform-card {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 25px;
}

.platform-logo {
  width: 70px;
  height: 70px;
  border-radius: 12px;
  object-fit: cover;
  border: 1px solid var(--border-color);
}

.platform-info h3 {
  font-size: 1.2rem;
  margin-bottom: 5px;
}

.safety-score {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 4px 12px;
  background: rgba(0, 255, 198, 0.1);
  border: 1px solid var(--accent-cyan-dim);
  border-radius: 20px;
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--accent-cyan);
}

.safety-score-bar {
  width: 100%;
  height: 6px;
  background: var(--secondary-dark);
  border-radius: 3px;
  margin-top: 10px;
  overflow: hidden;
}

.safety-score-bar .fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent-cyan), #00CC9E);
  border-radius: 3px;
  transition: width 1s ease;
}

/* ========================================
   BIAS COMPARISON (Module 5)
   ======================================== */
.bias-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 25px;
}

.bias-card {
  padding: 0;
  overflow: hidden;
}

.bias-card-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
}

.bias-myth, .bias-truth {
  padding: 25px;
}

.bias-myth {
  background: rgba(255, 71, 87, 0.08);
  border-right: 1px solid var(--border-color);
}

.bias-truth {
  background: rgba(0, 255, 198, 0.05);
}

.bias-label {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 3px;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 12px;
}

.bias-myth .bias-label {
  background: rgba(255, 71, 87, 0.2);
  color: var(--danger-red);
}

.bias-truth .bias-label {
  background: rgba(0, 255, 198, 0.15);
  color: var(--accent-cyan);
}

/* ========================================
   WEEKLY DEEP DIVE (Module 6)
   ======================================== */
.deep-dive-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  overflow: hidden;
}

.deep-dive-image {
  position: relative;
  min-height: 300px;
  overflow: hidden;
}

.deep-dive-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.deep-dive-content {
  padding: 40px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.deep-dive-tag {
  display: inline-block;
  padding: 4px 12px;
  background: var(--accent-cyan-glow);
  border: 1px solid var(--accent-cyan-dim);
  border-radius: 3px;
  font-size: 0.8rem;
  color: var(--accent-cyan);
  margin-bottom: 15px;
  width: fit-content;
}

/* ========================================
   INNER PAGE STYLES
   ======================================== */
.page-hero {
  padding: 50px 0 40px;
  background: linear-gradient(135deg, var(--primary-dark), #0D0D1A);
  border-bottom: 1px solid var(--border-color);
  text-align: center;
}

.page-hero h1 {
  font-size: 2.2rem;
  margin-bottom: 15px;
}

.page-hero .page-meta {
  color: var(--text-muted);
  font-size: 0.9rem;
}

.article-content {
  max-width: 900px;
  margin: 0 auto;
  padding: 50px 20px;
}

.article-content h2 {
  margin-top: 40px;
  padding-top: 20px;
  border-top: 1px solid var(--border-color);
}

.article-content h3 {
  margin-top: 30px;
  color: var(--accent-cyan);
}

.article-content p {
  font-size: 1.05rem;
  line-height: 1.9;
}

.article-content ul, .article-content ol {
  margin: 15px 0;
  padding-left: 25px;
  color: var(--text-secondary);
}

.article-content li {
  margin-bottom: 8px;
  line-height: 1.7;
}

.article-content blockquote {
  margin: 25px 0;
  padding: 20px 25px;
  border-left: 3px solid var(--accent-cyan);
  background: var(--accent-cyan-glow);
  border-radius: 0 8px 8px 0;
}

.article-content blockquote p {
  color: var(--text-primary);
  margin-bottom: 0;
}

.formula-box {
  background: rgba(53, 53, 53, 0.8);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 25px;
  margin: 25px 0;
  font-family: 'Courier New', monospace;
  text-align: center;
  font-size: 1.1rem;
  color: var(--accent-cyan);
}

.info-table {
  width: 100%;
  border-collapse: collapse;
  margin: 25px 0;
}

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

.info-table th {
  background: rgba(0, 255, 198, 0.08);
  color: var(--accent-cyan);
  font-weight: 600;
}

.info-table td {
  color: var(--text-secondary);
}

.info-table tr:hover td {
  background: rgba(53, 53, 53, 0.4);
}

/* Rating Score Display */
.rating-display {
  text-align: center;
  padding: 40px;
  margin: 30px 0;
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 12px;
}

.rating-circle {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  border: 4px solid var(--accent-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 15px;
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--accent-cyan);
  box-shadow: 0 0 30px var(--accent-cyan-dim);
}

.rating-label {
  font-size: 1.2rem;
  color: var(--text-secondary);
}

/* ========================================
   FOOTER
   ======================================== */
.site-footer {
  background: #0D0D1A;
  border-top: 1px solid var(--border-color);
  padding: 60px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
  margin-bottom: 40px;
}

.footer-col h4 {
  color: var(--accent-cyan);
  font-family: var(--font-heading);
  margin-bottom: 20px;
  font-size: 1.1rem;
}

.footer-col ul {
  list-style: none;
}

.footer-col ul li {
  margin-bottom: 10px;
}

.footer-col ul li a {
  color: var(--text-muted);
  font-size: 0.9rem;
  transition: color 0.3s;
}

.footer-col ul li a:hover {
  color: var(--accent-cyan);
}

.footer-social {
  display: flex;
  gap: 12px;
  margin-top: 15px;
}

.footer-social a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: 1px solid var(--border-color);
  border-radius: 50%;
  color: var(--text-muted);
  transition: all 0.3s;
}

.footer-social a:hover {
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
  box-shadow: 0 0 10px var(--accent-cyan-dim);
}

.footer-warning {
  padding: 25px;
  margin: 0 -20px;
  background: rgba(255, 71, 87, 0.08);
  border: 1px solid rgba(255, 71, 87, 0.2);
  border-radius: 8px;
  margin-bottom: 30px;
}

.footer-warning h4 {
  color: var(--danger-red);
  margin-bottom: 10px;
}

.footer-warning p {
  color: var(--text-muted);
  font-size: 0.85rem;
  line-height: 1.7;
}

.footer-bottom {
  padding: 20px 0;
  border-top: 1px solid var(--border-color);
  text-align: center;
}

.footer-bottom p {
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* ========================================
   APP DOWNLOAD PAGE
   ======================================== */
.app-hero {
  text-align: center;
  padding: 80px 0;
}

.app-hero h1 {
  margin-bottom: 20px;
}

.app-buttons {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-top: 30px;
  flex-wrap: wrap;
}

.app-btn {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 14px 30px;
  border: 2px solid var(--accent-cyan);
  border-radius: 8px;
  color: var(--accent-cyan);
  font-weight: 600;
  transition: all 0.3s;
}

.app-btn:hover {
  background: var(--accent-cyan);
  color: var(--primary-dark);
}

.app-btn .btn-icon {
  font-size: 1.5rem;
}

.app-features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 25px;
  margin-top: 60px;
}

/* ========================================
   PRIVACY PAGE
   ======================================== */
.legal-content {
  max-width: 800px;
  margin: 0 auto;
  padding: 50px 20px;
}

.legal-content h2 {
  margin-top: 35px;
  color: var(--accent-cyan);
}

.legal-content p {
  font-size: 0.95rem;
}

/* ========================================
   RESPONSIVE DESIGN
   ======================================== */
@media (max-width: 1024px) {
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .deep-dive-card {
    grid-template-columns: 1fr;
  }

  .deep-dive-image {
    min-height: 200px;
  }
}

@media (max-width: 768px) {
  html { font-size: 15px; }

  h1 { font-size: 2rem; }
  h2 { font-size: 1.6rem; }

  .hero-content h1 { font-size: 2.2rem; }

  .main-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(27, 27, 47, 0.98);
    border-bottom: 1px solid var(--border-color);
    padding: 20px;
  }

  .main-nav.active {
    display: block;
  }

  .main-nav ul {
    flex-direction: column;
    gap: 0;
  }

  .main-nav ul li a {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-color);
  }

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

  .hero-section {
    padding: 50px 0 40px;
  }

  .section {
    padding: 40px 0;
  }

  .toolbox-grid {
    grid-template-columns: 1fr 1fr;
  }

  .platform-list {
    grid-template-columns: 1fr;
  }

  .bias-card-inner {
    grid-template-columns: 1fr;
  }

  .bias-myth {
    border-right: none;
    border-bottom: 1px solid var(--border-color);
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .page-hero h1 {
    font-size: 1.8rem;
  }
}

@media (max-width: 480px) {
  html { font-size: 14px; }

  .toolbox-grid {
    grid-template-columns: 1fr;
  }

  .app-buttons {
    flex-direction: column;
    align-items: center;
  }

  .hero-content h1 {
    font-size: 1.8rem;
  }
}

/* ========================================
   UTILITY CLASSES
   ======================================== */
.text-cyan { color: var(--accent-cyan); }
.text-red { color: var(--danger-red); }
.text-yellow { color: var(--warning-yellow); }
.text-center { text-align: center; }
.mt-20 { margin-top: 20px; }
.mt-40 { margin-top: 40px; }
.mb-20 { margin-bottom: 20px; }
.mb-40 { margin-bottom: 40px; }

/* Terminal Style Box */
.terminal-box {
  background: #0a0a0a;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 20px;
  margin: 20px 0;
  font-family: 'Courier New', monospace;
  font-size: 0.9rem;
  color: var(--accent-cyan);
  position: relative;
}

.terminal-box::before {
  content: '$ ';
  color: var(--accent-cyan);
}

/* Glow Effect */
.glow-text {
  text-shadow: 0 0 10px var(--accent-cyan-dim), 0 0 20px var(--accent-cyan-glow);
}

/* Image Lazy Load Placeholder */
img[loading="lazy"] {
  background: var(--secondary-dark);
}

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

/* Scrollbar */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--primary-dark);
}

::-webkit-scrollbar-thumb {
  background: var(--secondary-dark);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--accent-cyan-dim);
}

/* Knowledge Hub Page */
.knowledge-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 25px;
}

/* Steps List */
.steps-list {
  counter-reset: step-counter;
  list-style: none;
  padding: 0;
  margin: 25px 0;
}

.steps-list li {
  counter-increment: step-counter;
  position: relative;
  padding: 15px 15px 15px 60px;
  margin-bottom: 15px;
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  color: var(--text-secondary);
}

.steps-list li::before {
  content: counter(step-counter);
  position: absolute;
  left: 15px;
  top: 50%;
  transform: translateY(-50%);
  width: 32px;
  height: 32px;
  background: var(--accent-cyan-glow);
  border: 1px solid var(--accent-cyan-dim);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--accent-cyan);
  font-size: 0.9rem;
}

/* Pros and Cons */
.pros-cons {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin: 25px 0;
}

.pros, .cons {
  padding: 20px;
  border-radius: 8px;
}

.pros {
  background: rgba(0, 255, 198, 0.05);
  border: 1px solid rgba(0, 255, 198, 0.15);
}

.cons {
  background: rgba(255, 71, 87, 0.05);
  border: 1px solid rgba(255, 71, 87, 0.15);
}

.pros h4 { color: var(--accent-cyan); }
.cons h4 { color: var(--danger-red); }

@media (max-width: 600px) {
  .pros-cons {
    grid-template-columns: 1fr;
  }
}