/* ============================================
   全站样式 - 移动端优先响应式设计
   独特配色: 深蓝渐变 + 金色强调 + 红色CTA
   ============================================ */

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

:root {
  --primary-dark: #0a0f2e;
  --primary-mid: #141a3e;
  --primary-light: #1e2650;
  --accent-gold: #ffd700;
  --accent-gold-light: #ffe44d;
  --accent-red: #dc2828;
  --accent-red-hover: #ef4444;
  --text-white: #ffffff;
  --text-light: #d1d5db;
  --text-muted: #9ca3af;
  --border-subtle: rgba(255,255,255,0.08);
  --card-bg: rgba(20,26,62,0.85);
  --card-hover: rgba(30,38,80,0.95);
  --shadow-gold: 0 0 20px rgba(255,215,0,0.15);
  --shadow-card: 0 8px 32px rgba(0,0,0,0.3);
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --radius-xl: 32px;
  --font-main: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
  --transition-fast: 0.2s ease;
  --transition-mid: 0.35s ease;
}

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

body {
  font-family: var(--font-main);
  background: var(--primary-dark);
  color: var(--text-white);
  line-height: 1.7;
  overflow-x: hidden;
  min-height: 100vh;
}

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

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

a:hover {
  color: var(--accent-gold-light);
}

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

h1 { font-size: 1.75rem; margin-bottom: 1rem; }
h2 { font-size: 1.5rem; margin-bottom: 0.875rem; color: var(--accent-gold); }
h3 { font-size: 1.25rem; margin-bottom: 0.75rem; }
h4 { font-size: 1.1rem; margin-bottom: 0.625rem; }

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

/* Container */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
}

/* ============================================
   Header / Navigation (非sticky)
   ============================================ */
.site-header {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary-mid));
  border-bottom: 2px solid var(--accent-gold);
  position: relative;
  z-index: 100;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1rem;
  max-width: 1200px;
  margin: 0 auto;
}

.site-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

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

.nav-toggle {
  display: flex;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.nav-toggle span {
  display: block;
  width: 26px;
  height: 3px;
  background: var(--accent-gold);
  border-radius: 2px;
  transition: var(--transition-fast);
}

.main-nav {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--primary-mid);
  border-bottom: 2px solid var(--accent-gold);
  z-index: 99;
}

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

.nav-list {
  list-style: none;
  padding: 0.5rem 0;
}

.nav-list li {
  border-bottom: 1px solid var(--border-subtle);
}

.nav-list li:last-child {
  border-bottom: none;
}

.nav-list a {
  display: block;
  padding: 0.875rem 1.25rem;
  color: var(--text-white);
  font-size: 0.95rem;
  font-weight: 500;
  transition: background var(--transition-fast), color var(--transition-fast);
}

.nav-list a:hover,
.nav-list a.active {
  background: rgba(255,215,0,0.1);
  color: var(--accent-gold);
}

/* ============================================
   Breadcrumb
   ============================================ */
.breadcrumb {
  padding: 0.75rem 1rem;
  font-size: 0.85rem;
  color: var(--text-muted);
  background: rgba(0,0,0,0.2);
}

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

.breadcrumb a:hover {
  color: var(--accent-gold);
}

.breadcrumb span {
  margin: 0 0.4rem;
}

/* ============================================
   Hero Section
   ============================================ */
.hero-section {
  position: relative;
  overflow: hidden;
}

.hero-section img {
  width: 100%;
  height: auto;
  display: block;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(10,15,46,0.3), rgba(10,15,46,0.7));
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 1rem;
}

.hero-overlay h1 {
  font-size: 1.5rem;
  color: var(--accent-gold);
  text-shadow: 0 2px 12px rgba(0,0,0,0.5);
  margin-bottom: 0.5rem;
}

.hero-overlay p {
  color: var(--text-white);
  font-size: 0.95rem;
  max-width: 600px;
}

/* ============================================
   CTA Buttons
   ============================================ */
.btn-cta {
  display: inline-block;
  padding: 0.875rem 2rem;
  background: linear-gradient(135deg, var(--accent-red), #b91c1c);
  color: var(--text-white);
  font-size: 1rem;
  font-weight: 700;
  border-radius: var(--radius-xl);
  border: none;
  cursor: pointer;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
  text-align: center;
  box-shadow: 0 4px 16px rgba(220,40,40,0.4);
}

.btn-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(220,40,40,0.6);
  color: var(--text-white);
}

.btn-gold {
  background: linear-gradient(135deg, var(--accent-gold), #b8860b);
  color: var(--primary-dark);
  box-shadow: 0 4px 16px rgba(255,215,0,0.3);
}

.btn-gold:hover {
  box-shadow: 0 6px 24px rgba(255,215,0,0.5);
  color: var(--primary-dark);
}

.btn-outline {
  background: transparent;
  border: 2px solid var(--accent-gold);
  color: var(--accent-gold);
  box-shadow: none;
}

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

/* ============================================
   Section Styles
   ============================================ */
.section {
  padding: 2.5rem 0;
}

.section-alt {
  background: linear-gradient(180deg, var(--primary-mid), var(--primary-dark));
}

.section-title {
  text-align: center;
  margin-bottom: 2rem;
}

.section-title h2 {
  font-size: 1.5rem;
  position: relative;
  display: inline-block;
  padding-bottom: 0.75rem;
}

.section-title h2::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  background: var(--accent-gold);
  border-radius: 2px;
}

.section-title p {
  margin-top: 0.75rem;
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* ============================================
   Video Section
   ============================================ */
.video-wrapper {
  position: relative;
  width: 100%;
  max-width: 800px;
  margin: 0 auto;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  cursor: pointer;
}

.video-wrapper img {
  width: 100%;
  display: block;
}

.video-play-btn {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0,0,0,0.35);
  transition: background var(--transition-mid);
}

.video-play-btn:hover {
  background: rgba(0,0,0,0.15);
}

.play-circle {
  width: 64px;
  height: 64px;
  background: var(--accent-red);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 30px rgba(220,40,40,0.5);
  transition: transform var(--transition-mid);
}

.video-play-btn:hover .play-circle {
  transform: scale(1.1);
}

.play-circle::after {
  content: '';
  display: block;
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 12px 0 12px 22px;
  border-color: transparent transparent transparent #fff;
  margin-left: 4px;
}

.video-container {
  display: none;
  position: relative;
  width: 100%;
  max-width: 800px;
  margin: 0 auto;
  border-radius: var(--radius-md);
  overflow: hidden;
}

.video-container video {
  width: 100%;
  display: block;
}

/* ============================================
   Game Cards Grid
   ============================================ */
.games-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

.game-card {
  background: var(--card-bg);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: transform var(--transition-mid), box-shadow var(--transition-mid);
  border: 1px solid var(--border-subtle);
}

.game-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-gold);
  border-color: rgba(255,215,0,0.3);
}

.game-card figure {
  margin: 0;
  overflow: hidden;
}

.game-card figure img {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
  transition: transform var(--transition-mid);
}

.game-card:hover figure img {
  transform: scale(1.05);
}

.game-card-body {
  padding: 0.875rem;
}

.game-card-body h3 {
  font-size: 1rem;
  margin-bottom: 0.375rem;
}

.game-card-body p {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 0.625rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.game-card-body .btn-cta {
  display: block;
  padding: 0.5rem;
  font-size: 0.85rem;
  text-align: center;
}

/* ============================================
   Review Cards
   ============================================ */
.review-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

.review-card {
  background: var(--card-bg);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  border: 1px solid var(--border-subtle);
  transition: border-color var(--transition-mid);
}

.review-card:hover {
  border-color: rgba(255,215,0,0.2);
}

.review-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}

.review-header img {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 2px solid var(--accent-gold);
}

.review-meta {
  flex: 1;
}

.review-meta strong {
  display: block;
  font-size: 0.95rem;
}

.review-meta small {
  color: var(--text-muted);
  font-size: 0.8rem;
}

.review-stars {
  color: var(--accent-gold);
  font-size: 1rem;
  margin-bottom: 0.5rem;
}

.review-text {
  font-size: 0.9rem;
  color: var(--text-light);
  line-height: 1.6;
}

/* ============================================
   FAQ Accordion
   ============================================ */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  background: var(--card-bg);
  border-radius: var(--radius-sm);
  margin-bottom: 0.75rem;
  border: 1px solid var(--border-subtle);
  overflow: hidden;
}

.faq-question {
  width: 100%;
  padding: 1rem 1.25rem;
  background: none;
  border: none;
  color: var(--text-white);
  font-size: 0.95rem;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-main);
  transition: background var(--transition-fast);
}

.faq-question:hover {
  background: rgba(255,215,0,0.05);
}

.faq-question::after {
  content: '+';
  font-size: 1.25rem;
  color: var(--accent-gold);
  transition: transform var(--transition-fast);
  flex-shrink: 0;
  margin-left: 0.75rem;
}

.faq-item.active .faq-question::after {
  content: '−';
}

.faq-answer {
  display: none;
  padding: 0 1.25rem 1rem;
  color: var(--text-light);
  font-size: 0.9rem;
  line-height: 1.7;
}

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

/* ============================================
   Payment Section
   ============================================ */
.payment-icons {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
}

.payment-icons img {
  height: 50px;
  width: auto;
  border-radius: var(--radius-sm);
  transition: transform var(--transition-fast);
}

.payment-icons img:hover {
  transform: scale(1.08);
}

/* ============================================
   Author/Expert Section
   ============================================ */
.author-box {
  display: flex;
  gap: 1rem;
  background: var(--card-bg);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  border-left: 4px solid var(--accent-gold);
  margin: 1.5rem 0;
}

.author-box img {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  border: 2px solid var(--accent-gold);
  flex-shrink: 0;
}

.author-info h4 {
  color: var(--accent-gold);
  margin-bottom: 0.25rem;
}

.author-info p {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 0.25rem;
}

/* ============================================
   Game Review Module
   ============================================ */
.review-module-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

.review-module-card {
  display: flex;
  flex-direction: column;
  background: var(--card-bg);
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border-subtle);
}

.review-module-card figure {
  margin: 0;
}

.review-module-card figure img {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
}

.review-module-content {
  padding: 1rem;
}

.review-module-content h3 {
  color: var(--accent-gold);
  margin-bottom: 0.5rem;
}

.odds-badge {
  display: inline-block;
  background: rgba(255,215,0,0.15);
  color: var(--accent-gold);
  padding: 0.25rem 0.75rem;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

/* ============================================
   Promo / Deposit Section
   ============================================ */
.promo-banner {
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  margin: 1rem 0;
}

.promo-banner img {
  width: 100%;
  display: block;
}

/* ============================================
   License Section
   ============================================ */
.license-box {
  text-align: center;
  background: var(--card-bg);
  border-radius: var(--radius-md);
  padding: 2rem 1rem;
  border: 1px solid rgba(255,215,0,0.2);
}

.license-box img {
  max-width: 200px;
  margin: 0 auto 1rem;
}

/* ============================================
   Support Section
   ============================================ */
.support-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

.support-item {
  background: var(--card-bg);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  text-align: center;
  border: 1px solid var(--border-subtle);
  transition: border-color var(--transition-mid);
}

.support-item:hover {
  border-color: rgba(255,215,0,0.3);
}

.support-item img {
  width: 48px;
  height: 48px;
  margin: 0 auto 0.75rem;
}

.support-item h4 {
  font-size: 0.95rem;
  margin-bottom: 0.375rem;
}

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

/* ============================================
   About Section
   ============================================ */
.about-content {
  background: var(--card-bg);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  border: 1px solid var(--border-subtle);
}

.about-content h3 {
  color: var(--accent-gold);
  margin-top: 1.5rem;
}

.about-content h3:first-child {
  margin-top: 0;
}

/* ============================================
   Responsible Gaming
   ============================================ */
.responsible-box {
  background: linear-gradient(135deg, rgba(220,40,40,0.1), rgba(220,40,40,0.05));
  border: 1px solid rgba(220,40,40,0.3);
  border-radius: var(--radius-md);
  padding: 1.5rem;
}

.responsible-box h3 {
  color: var(--accent-red);
}

/* ============================================
   Footer
   ============================================ */
.site-footer {
  background: linear-gradient(180deg, var(--primary-mid), #050816);
  border-top: 2px solid var(--accent-gold);
  padding: 2.5rem 0 1.5rem;
  margin-top: 2rem;
}

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

.footer-col h4 {
  color: var(--accent-gold);
  font-size: 1rem;
  margin-bottom: 0.75rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border-subtle);
}

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

.footer-col ul li {
  margin-bottom: 0.375rem;
}

.footer-col ul li a {
  color: var(--text-muted);
  font-size: 0.85rem;
  transition: color var(--transition-fast);
}

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

.footer-social {
  display: flex;
  gap: 0.75rem;
  margin-top: 0.5rem;
}

.footer-social img {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  transition: transform var(--transition-fast);
}

.footer-social img:hover {
  transform: scale(1.1);
}

.footer-payment {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.5rem;
}

.footer-payment img {
  height: 32px;
  width: auto;
}

.footer-bottom {
  text-align: center;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-subtle);
}

.footer-bottom p {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 0.375rem;
}

.footer-age {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 0.5rem;
}

.footer-age img {
  width: 40px;
  height: 40px;
}

/* ============================================
   Inner Page Styles
   ============================================ */
.page-hero {
  position: relative;
  overflow: hidden;
}

.page-hero img {
  width: 100%;
  height: auto;
}

.page-hero-overlay {
  position: absolute;
  inset: 0;
  background: rgba(10,15,46,0.5);
  display: flex;
  align-items: center;
  justify-content: center;
}

.page-hero-overlay h1 {
  color: var(--accent-gold);
  font-size: 1.75rem;
  text-shadow: 0 2px 8px rgba(0,0,0,0.5);
}

.content-area {
  padding: 2rem 0;
}

.content-area article {
  background: var(--card-bg);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  border: 1px solid var(--border-subtle);
}

.content-area article h2 {
  color: var(--accent-gold);
  margin-top: 1.5rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border-subtle);
}

.content-area article h2:first-child {
  margin-top: 0;
  padding-top: 0;
  border-top: none;
}

.content-area article figure {
  margin: 1.25rem 0;
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.content-area article figure img {
  width: 100%;
}

.content-area article figure figcaption {
  padding: 0.5rem;
  font-size: 0.8rem;
  color: var(--text-muted);
  text-align: center;
  background: rgba(0,0,0,0.3);
}

.content-area article ul,
.content-area article ol {
  padding-left: 1.25rem;
  margin-bottom: 1rem;
  color: var(--text-light);
}

.content-area article li {
  margin-bottom: 0.375rem;
  font-size: 0.9rem;
}

.content-area article table {
  width: 100%;
  border-collapse: collapse;
  margin: 1rem 0;
  font-size: 0.85rem;
}

.content-area article table th,
.content-area article table td {
  padding: 0.625rem;
  border: 1px solid var(--border-subtle);
  text-align: left;
}

.content-area article table th {
  background: rgba(255,215,0,0.1);
  color: var(--accent-gold);
  font-weight: 600;
}

/* ============================================
   App Download Page
   ============================================ */
.app-hero {
  text-align: center;
  padding: 2.5rem 1rem;
  background: linear-gradient(135deg, var(--primary-dark), #1a0a30);
}

.app-hero h1 {
  color: var(--accent-gold);
  margin-bottom: 0.75rem;
}

.app-screenshot {
  max-width: 280px;
  margin: 1.5rem auto;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.app-screenshot img {
  width: 100%;
}

.download-buttons {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  align-items: center;
  margin: 1.5rem 0;
}

.download-buttons .btn-cta {
  min-width: 240px;
}

.qr-section {
  text-align: center;
  margin: 2rem 0;
}

.qr-section img {
  width: 180px;
  height: 180px;
  margin: 0 auto;
  border-radius: var(--radius-sm);
  border: 3px solid var(--accent-gold);
}

.app-features {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin: 2rem 0;
}

.app-feature-card {
  background: var(--card-bg);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  text-align: center;
  border: 1px solid var(--border-subtle);
}

.app-feature-card h3 {
  color: var(--accent-gold);
  font-size: 1rem;
  margin-bottom: 0.5rem;
}

.app-feature-card p {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* ============================================
   Animations
   ============================================ */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}

.animate-in {
  animation: fadeInUp 0.6s ease forwards;
}

.pulse-animation {
  animation: pulse 2s infinite;
}

/* ============================================
   Desktop Responsive (min-width: 768px)
   ============================================ */
@media (min-width: 768px) {
  h1 { font-size: 2.25rem; }
  h2 { font-size: 1.75rem; }
  h3 { font-size: 1.375rem; }

  .container {
    padding: 0 2rem;
  }

  .nav-toggle {
    display: none;
  }

  .main-nav {
    display: block;
    position: static;
    background: none;
    border: none;
  }

  .nav-list {
    display: flex;
    gap: 0;
    padding: 0;
  }

  .nav-list li {
    border-bottom: none;
  }

  .nav-list a {
    padding: 0.5rem 0.875rem;
    font-size: 0.875rem;
    border-radius: var(--radius-sm);
  }

  .hero-overlay h1 {
    font-size: 2.5rem;
  }

  .hero-overlay p {
    font-size: 1.1rem;
  }

  .games-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem;
  }

  .review-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .review-module-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .support-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .footer-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .section {
    padding: 3.5rem 0;
  }

  .download-buttons {
    flex-direction: row;
    justify-content: center;
  }

  .app-features {
    grid-template-columns: repeat(3, 1fr);
  }

  .review-module-card {
    flex-direction: row;
  }

  .review-module-card figure {
    width: 45%;
    flex-shrink: 0;
  }

  .review-module-card figure img {
    height: 100%;
    aspect-ratio: auto;
  }
}

@media (min-width: 1024px) {
  .games-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
  }

  .review-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ============================================
   Utility Classes
   ============================================ */
.text-center { text-align: center; }
.text-gold { color: var(--accent-gold); }
.text-red { color: var(--accent-red); }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.hidden { display: none; }