/* ============================================
   赏金女王 - 赛博朋克霓虹风格主题
   ============================================ */

/* CSS Variables */
:root {
  --deep-purple: #1a0033;
  --electric-blue: #00f0ff;
  --neon-pink: #ff00e6;
  --dark-gray: #1c1c2e;
  --text-white: #e8e8f0;
  --text-muted: #9a9ab0;
  --card-bg: rgba(28, 28, 46, 0.85);
  --glow-blue: 0 0 15px rgba(0, 240, 255, 0.5), 0 0 30px rgba(0, 240, 255, 0.2);
  --glow-pink: 0 0 15px rgba(255, 0, 230, 0.5), 0 0 30px rgba(255, 0, 230, 0.2);
  --glow-blue-strong: 0 0 20px rgba(0, 240, 255, 0.8), 0 0 40px rgba(0, 240, 255, 0.4), 0 0 60px rgba(0, 240, 255, 0.2);
  --glow-pink-strong: 0 0 20px rgba(255, 0, 230, 0.8), 0 0 40px rgba(255, 0, 230, 0.4), 0 0 60px rgba(255, 0, 230, 0.2);
}

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

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

body {
  font-family: 'Microsoft YaHei', 'PingFang SC', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
  background-color: var(--deep-purple);
  color: var(--text-white);
  line-height: 1.8;
  overflow-x: hidden;
  min-height: 100vh;
}

/* Jammer blocks - invisible */
.jammer-block {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
  padding: 0;
  margin: -1px;
}

/* Typography */
h1, h2, h3, h4, h5, h6, h7, h8, h9 {
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 0.8em;
}

h1 {
  font-size: 2.5rem;
  color: var(--electric-blue);
  text-shadow: var(--glow-blue);
}

h2 {
  font-size: 2rem;
  color: var(--electric-blue);
  text-shadow: var(--glow-blue);
}

h3 {
  font-size: 1.5rem;
  color: var(--neon-pink);
  text-shadow: var(--glow-pink);
}

h4 { font-size: 1.25rem; color: var(--electric-blue); }
h5 { font-size: 1.1rem; color: var(--neon-pink); }
h6 { font-size: 1rem; color: var(--electric-blue); }

p {
  margin-bottom: 1em;
  color: var(--text-white);
}

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

a:hover {
  color: var(--neon-pink);
  text-shadow: var(--glow-pink);
}

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

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

/* ============================================
   Navigation
   ============================================ */
.main-nav {
  background: rgba(26, 0, 51, 0.95);
  border-bottom: 2px solid var(--electric-blue);
  box-shadow: 0 2px 20px rgba(0, 240, 255, 0.3);
  padding: 0;
  z-index: 100;
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 20px;
}

.nav-logo {
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--electric-blue);
  text-shadow: var(--glow-blue-strong);
  text-decoration: none;
  letter-spacing: 2px;
}

.nav-toggle {
  display: none;
  background: none;
  border: 2px solid var(--electric-blue);
  color: var(--electric-blue);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 5px 10px;
  border-radius: 4px;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 0;
  flex-wrap: wrap;
}

.nav-links li a {
  display: block;
  padding: 10px 15px;
  color: var(--text-white);
  font-size: 0.9rem;
  font-weight: 600;
  border-bottom: 2px solid transparent;
  transition: all 0.3s ease;
  white-space: nowrap;
}

.nav-links li a:hover,
.nav-links li a.active {
  color: var(--electric-blue);
  border-bottom-color: var(--electric-blue);
  text-shadow: var(--glow-blue);
}

/* ============================================
   Hero Section
   ============================================ */
.hero-section {
  position: relative;
  min-height: 80vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: linear-gradient(135deg, var(--deep-purple) 0%, #2a0050 30%, #1a0033 50%, #330044 70%, var(--deep-purple) 100%);
  overflow: hidden;
  padding: 60px 20px;
}

.hero-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background:
    radial-gradient(ellipse at 20% 50%, rgba(0, 240, 255, 0.15) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 50%, rgba(255, 0, 230, 0.15) 0%, transparent 50%),
    radial-gradient(ellipse at 50% 0%, rgba(0, 240, 255, 0.1) 0%, transparent 40%);
  animation: heroGlow 8s ease-in-out infinite alternate;
}

@keyframes heroGlow {
  0% { opacity: 0.7; }
  50% { opacity: 1; }
  100% { opacity: 0.7; }
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 800px;
}

.hero-image-wrapper {
  position: relative;
  display: inline-block;
  margin-bottom: 30px;
}

.hero-image-wrapper img {
  width: 300px;
  height: 300px;
  object-fit: cover;
  border-radius: 50%;
  border: 3px solid var(--electric-blue);
  box-shadow: var(--glow-blue-strong), inset 0 0 30px rgba(0, 240, 255, 0.2);
  animation: neonPulse 3s ease-in-out infinite;
}

@keyframes neonPulse {
  0%, 100% { box-shadow: var(--glow-blue-strong), inset 0 0 30px rgba(0, 240, 255, 0.2); }
  50% { box-shadow: var(--glow-pink-strong), inset 0 0 30px rgba(255, 0, 230, 0.2); border-color: var(--neon-pink); }
}

.hero-title {
  font-size: 3rem;
  margin-bottom: 20px;
  background: linear-gradient(90deg, var(--electric-blue), var(--neon-pink), var(--electric-blue));
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: textShine 4s linear infinite;
}

@keyframes textShine {
  0% { background-position: 0% center; }
  100% { background-position: 200% center; }
}

.hero-slogan {
  font-size: 1.3rem;
  color: var(--text-white);
  margin-bottom: 30px;
  text-shadow: 0 0 10px rgba(255, 255, 255, 0.3);
}

/* CTA Buttons */
.cta-btn {
  display: inline-block;
  padding: 14px 40px;
  background: linear-gradient(135deg, var(--electric-blue), #0088ff);
  color: #000;
  font-size: 1.1rem;
  font-weight: 700;
  border: none;
  border-radius: 50px;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.3s ease;
  box-shadow: var(--glow-blue);
  letter-spacing: 1px;
}

.cta-btn:hover {
  background: linear-gradient(135deg, var(--neon-pink), #ff44cc);
  box-shadow: var(--glow-pink-strong);
  transform: translateY(-2px);
  color: #fff;
}

.cta-btn-pink {
  background: linear-gradient(135deg, var(--neon-pink), #cc00b8);
  color: #fff;
}

.cta-btn-pink:hover {
  background: linear-gradient(135deg, var(--electric-blue), #0088ff);
  box-shadow: var(--glow-blue-strong);
  color: #000;
}

/* ============================================
   Section Base
   ============================================ */
.section {
  padding: 80px 0;
  position: relative;
}

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

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

.section-title h2::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 3px;
  background: linear-gradient(90deg, var(--electric-blue), var(--neon-pink));
  box-shadow: 0 0 10px rgba(0, 240, 255, 0.5);
}

/* ============================================
   Simulator Section
   ============================================ */
.simulator-section {
  background: var(--dark-gray);
  border-top: 1px solid rgba(0, 240, 255, 0.2);
  border-bottom: 1px solid rgba(0, 240, 255, 0.2);
}

.simulator-wrapper {
  max-width: 800px;
  margin: 0 auto;
  background: rgba(26, 0, 51, 0.8);
  border: 2px solid var(--electric-blue);
  border-radius: 15px;
  overflow: hidden;
  box-shadow: var(--glow-blue);
}

.simulator-screen {
  width: 100%;
  aspect-ratio: 16/9;
  background: linear-gradient(135deg, #0a001a 0%, #1a0033 50%, #0a001a 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.simulator-screen img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.simulator-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 1;
  transition: opacity 0.3s ease;
}

.simulator-controls {
  padding: 20px;
  text-align: center;
}

.play-btn {
  display: inline-block;
  padding: 16px 50px;
  background: var(--electric-blue);
  color: #000;
  font-size: 1.2rem;
  font-weight: 700;
  border: none;
  border-radius: 50px;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: var(--glow-blue-strong);
  animation: btnPulse 2s ease-in-out infinite;
}

@keyframes btnPulse {
  0%, 100% { box-shadow: var(--glow-blue-strong); }
  50% { box-shadow: 0 0 30px rgba(0, 240, 255, 1), 0 0 60px rgba(0, 240, 255, 0.6), 0 0 90px rgba(0, 240, 255, 0.3); }
}

.play-btn:hover {
  background: var(--neon-pink);
  color: #fff;
  box-shadow: var(--glow-pink-strong);
  transform: scale(1.05);
}

/* ============================================
   Game Cards Waterfall
   ============================================ */
.games-section {
  background: var(--deep-purple);
}

.waterfall-grid {
  columns: 3;
  column-gap: 20px;
}

.game-card {
  break-inside: avoid;
  margin-bottom: 20px;
  background: var(--card-bg);
  border: 1px solid rgba(0, 240, 255, 0.15);
  border-radius: 12px;
  overflow: hidden;
  transition: all 0.4s ease;
  position: relative;
}

.game-card:hover {
  border-color: var(--electric-blue);
  box-shadow: var(--glow-blue);
  transform: translateY(-5px);
}

.game-card:nth-child(even):hover {
  border-color: var(--neon-pink);
  box-shadow: var(--glow-pink);
}

.game-card-image {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
  display: block;
}

.game-card:nth-child(2) .game-card-image,
.game-card:nth-child(5) .game-card-image,
.game-card:nth-child(8) .game-card-image {
  aspect-ratio: 3/4;
}

.game-card:nth-child(3) .game-card-image,
.game-card:nth-child(6) .game-card-image {
  aspect-ratio: 1/1;
}

.game-card-info {
  padding: 15px;
}

.game-card-info h3 {
  font-size: 1.1rem;
  margin-bottom: 8px;
  transition: text-shadow 0.3s ease;
}

.game-card:hover .game-card-info h3 {
  text-shadow: var(--glow-pink-strong);
}

.game-card-info p {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 10px;
}

.game-card-tag {
  display: inline-block;
  padding: 3px 10px;
  background: rgba(0, 240, 255, 0.1);
  border: 1px solid rgba(0, 240, 255, 0.3);
  border-radius: 20px;
  font-size: 0.75rem;
  color: var(--electric-blue);
  margin-right: 5px;
}

/* ============================================
   Battle Reports (Scrolling Ticker)
   ============================================ */
.reports-section {
  background: var(--dark-gray);
  border-top: 1px solid rgba(255, 0, 230, 0.2);
  border-bottom: 1px solid rgba(255, 0, 230, 0.2);
  overflow: hidden;
}

.ticker-wrapper {
  max-width: 800px;
  margin: 0 auto;
  height: 300px;
  overflow: hidden;
  position: relative;
  background: rgba(26, 0, 51, 0.5);
  border: 1px solid rgba(0, 240, 255, 0.2);
  border-radius: 12px;
  padding: 20px;
}

.ticker-wrapper::before,
.ticker-wrapper::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  height: 40px;
  z-index: 2;
  pointer-events: none;
}

.ticker-wrapper::before {
  top: 0;
  background: linear-gradient(to bottom, var(--dark-gray), transparent);
}

.ticker-wrapper::after {
  bottom: 0;
  background: linear-gradient(to top, var(--dark-gray), transparent);
}

.ticker-list {
  animation: tickerScroll 20s linear infinite;
}

@keyframes tickerScroll {
  0% { transform: translateY(0); }
  100% { transform: translateY(-50%); }
}

.ticker-item {
  padding: 12px 15px;
  border-bottom: 1px solid rgba(0, 240, 255, 0.1);
  display: flex;
  align-items: center;
  gap: 10px;
}

.ticker-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--electric-blue), var(--neon-pink));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: 700;
  color: #000;
  flex-shrink: 0;
}

.ticker-text {
  font-size: 0.9rem;
  color: var(--text-white);
}

.ticker-amount {
  color: #ffdd00;
  font-weight: 700;
  text-shadow: 0 0 8px rgba(255, 221, 0, 0.5);
}

.ticker-game {
  color: var(--electric-blue);
}

/* ============================================
   License Section
   ============================================ */
.license-section {
  text-align: center;
}

.license-badge {
  display: inline-block;
  padding: 30px;
  border: 3px solid var(--neon-pink);
  border-radius: 20px;
  box-shadow: var(--glow-pink);
  background: rgba(26, 0, 51, 0.8);
  max-width: 500px;
  margin: 0 auto;
}

.license-badge img {
  width: 120px;
  height: 120px;
  object-fit: contain;
  margin: 0 auto 20px;
  filter: brightness(1.1);
}

.license-info {
  margin-top: 15px;
}

.license-info p {
  font-size: 0.95rem;
  margin-bottom: 8px;
}

.license-number {
  font-size: 1.2rem;
  color: var(--electric-blue);
  font-weight: 700;
  letter-spacing: 2px;
}

/* ============================================
   Payment Tutorial
   ============================================ */
.payment-section {
  background: var(--dark-gray);
}

.tutorial-steps {
  max-width: 800px;
  margin: 0 auto;
}

.tutorial-step {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 20px;
  margin-bottom: 30px;
  padding: 25px;
  background: rgba(26, 0, 51, 0.6);
  border: 1px solid rgba(0, 240, 255, 0.15);
  border-radius: 12px;
  align-items: start;
  transition: border-color 0.3s ease;
}

.tutorial-step:hover {
  border-color: var(--electric-blue);
}

.step-number {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--electric-blue), var(--neon-pink));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 900;
  color: #000;
}

.step-content h4 {
  margin-bottom: 10px;
}

.step-content p {
  color: var(--text-muted);
  font-size: 0.95rem;
}

.step-image {
  margin-top: 15px;
  border-radius: 8px;
  border: 1px solid rgba(0, 240, 255, 0.2);
}

/* ============================================
   FAQ Accordion
   ============================================ */
.faq-section {
  background: var(--deep-purple);
}

.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  margin-bottom: 10px;
  border: 1px solid rgba(0, 240, 255, 0.15);
  border-radius: 8px;
  overflow: hidden;
}

.faq-question {
  width: 100%;
  padding: 18px 20px;
  background: var(--dark-gray);
  border: none;
  color: var(--text-white);
  font-size: 1rem;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: all 0.3s ease;
}

.faq-question:hover {
  color: var(--electric-blue);
}

.faq-question::after {
  content: '+';
  font-size: 1.5rem;
  color: var(--electric-blue);
  transition: transform 0.3s ease;
}

.faq-item.active .faq-question::after {
  content: '−';
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.4s ease;
  background: rgba(26, 0, 51, 0.8);
}

.faq-item.active .faq-answer {
  max-height: 500px;
  padding: 20px;
}

.faq-answer p {
  color: var(--text-muted);
  line-height: 1.8;
}

/* ============================================
   Reviews Carousel
   ============================================ */
.reviews-section {
  background: var(--dark-gray);
  overflow: hidden;
}

.carousel-wrapper {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
}

.carousel-track {
  display: flex;
  transition: transform 0.5s ease;
}

.review-card {
  min-width: 100%;
  padding: 30px;
  background: rgba(26, 0, 51, 0.6);
  border: 1px solid rgba(0, 240, 255, 0.2);
  border-radius: 15px;
  text-align: center;
}

.review-stars {
  color: #ffdd00;
  font-size: 1.2rem;
  margin-bottom: 15px;
}

.review-text {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--text-white);
  margin-bottom: 20px;
  font-style: italic;
}

.review-author {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 15px;
}

.review-avatar {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--electric-blue), var(--neon-pink));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  font-weight: 700;
  color: #000;
}

.review-meta h4 {
  font-size: 1rem;
  margin-bottom: 2px;
}

.review-meta span {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.carousel-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 45px;
  height: 45px;
  border-radius: 50%;
  background: var(--electric-blue);
  color: #000;
  border: none;
  font-size: 1.2rem;
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--glow-blue);
  z-index: 5;
}

.carousel-btn:hover {
  background: var(--neon-pink);
  color: #fff;
  box-shadow: var(--glow-pink);
}

.carousel-prev { left: -20px; }
.carousel-next { right: -20px; }

.carousel-dots {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 20px;
}

.carousel-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(0, 240, 255, 0.3);
  border: none;
  cursor: pointer;
  transition: all 0.3s ease;
}

.carousel-dot.active {
  background: var(--electric-blue);
  box-shadow: var(--glow-blue);
}

/* ============================================
   Customer Service Float
   ============================================ */
.cs-float {
  position: fixed;
  bottom: 30px;
  right: 30px;
  z-index: 9999;
}

.cs-float-btn {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: var(--electric-blue);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--glow-blue-strong);
  transition: all 0.3s ease;
  animation: csFloat 3s ease-in-out infinite;
}

@keyframes csFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

.cs-float-btn:hover {
  background: var(--neon-pink);
  box-shadow: var(--glow-pink-strong);
}

.cs-float-btn svg {
  width: 28px;
  height: 28px;
  fill: #000;
}

.cs-popup {
  position: absolute;
  bottom: 70px;
  right: 0;
  width: 300px;
  background: var(--dark-gray);
  border: 2px solid var(--electric-blue);
  border-radius: 15px;
  padding: 20px;
  display: none;
  box-shadow: var(--glow-blue);
}

.cs-popup.active {
  display: block;
}

.cs-popup h4 {
  margin-bottom: 10px;
  text-align: center;
}

.cs-popup p {
  font-size: 0.9rem;
  color: var(--text-muted);
  text-align: center;
}

/* ============================================
   Footer
   ============================================ */
.main-footer {
  background: #0a0015;
  border-top: 2px solid var(--electric-blue);
  padding: 60px 0 30px;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  margin-bottom: 40px;
}

.footer-col h4 {
  color: var(--electric-blue);
  margin-bottom: 15px;
  font-size: 1rem;
}

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

.footer-col ul li {
  margin-bottom: 8px;
}

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

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

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

.footer-bottom {
  text-align: center;
  padding-top: 20px;
  border-top: 1px solid rgba(0, 240, 255, 0.1);
}

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

/* ============================================
   Inner Pages
   ============================================ */
.page-header {
  padding: 60px 0 40px;
  text-align: center;
  background: linear-gradient(135deg, var(--deep-purple), var(--dark-gray));
  border-bottom: 1px solid rgba(0, 240, 255, 0.2);
}

.breadcrumb {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-bottom: 20px;
  font-size: 0.9rem;
}

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

.breadcrumb span {
  color: var(--electric-blue);
}

.page-content {
  padding: 60px 0;
}

.page-content .container {
  max-width: 900px;
}

.content-block {
  margin-bottom: 40px;
}

.content-block h2 {
  margin-bottom: 20px;
}

.content-block p {
  margin-bottom: 15px;
  color: var(--text-muted);
  line-height: 1.9;
}

.content-images {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 15px;
  margin: 20px 0;
}

.content-images img {
  border-radius: 8px;
  border: 1px solid rgba(0, 240, 255, 0.2);
  transition: border-color 0.3s ease;
}

.content-images img:hover {
  border-color: var(--electric-blue);
}

/* Info table */
.info-table {
  width: 100%;
  border-collapse: collapse;
  margin: 20px 0;
}

.info-table th,
.info-table td {
  padding: 12px 15px;
  text-align: left;
  border: 1px solid rgba(0, 240, 255, 0.15);
}

.info-table th {
  background: rgba(0, 240, 255, 0.1);
  color: var(--electric-blue);
  font-weight: 600;
}

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

.info-table tr:hover td {
  background: rgba(0, 240, 255, 0.05);
}

/* Payment methods grid */
.payment-methods {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
  margin: 30px 0;
}

.payment-card {
  background: var(--card-bg);
  border: 1px solid rgba(0, 240, 255, 0.15);
  border-radius: 12px;
  padding: 25px;
  text-align: center;
  transition: all 0.3s ease;
}

.payment-card:hover {
  border-color: var(--electric-blue);
  box-shadow: var(--glow-blue);
}

.payment-card.featured {
  border-color: var(--neon-pink);
  box-shadow: var(--glow-pink);
  position: relative;
}

.payment-card.featured::before {
  content: '推荐';
  position: absolute;
  top: -10px;
  right: 15px;
  background: var(--neon-pink);
  color: #fff;
  padding: 3px 12px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 700;
}

.payment-card img {
  width: 60px;
  height: 60px;
  object-fit: contain;
  margin: 0 auto 15px;
}

.payment-card h4 {
  margin-bottom: 8px;
  font-size: 1rem;
}

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

/* Download page */
.download-hero {
  text-align: center;
  padding: 80px 20px;
  background: linear-gradient(135deg, var(--deep-purple), #2a0050);
}

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

.download-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 15px 30px;
  background: var(--card-bg);
  border: 2px solid var(--electric-blue);
  border-radius: 12px;
  color: var(--text-white);
  font-size: 1rem;
  font-weight: 600;
  transition: all 0.3s ease;
  text-decoration: none;
}

.download-btn:hover {
  background: var(--electric-blue);
  color: #000;
  box-shadow: var(--glow-blue-strong);
}

.download-btn svg {
  width: 24px;
  height: 24px;
}

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 992px) {
  .waterfall-grid {
    columns: 2;
  }

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

  .hero-title {
    font-size: 2.2rem;
  }
}

@media (max-width: 768px) {
  .nav-toggle {
    display: block;
  }

  .nav-links {
    display: none;
    width: 100%;
    flex-direction: column;
    background: rgba(26, 0, 51, 0.98);
    position: absolute;
    top: 100%;
    left: 0;
    border-top: 1px solid rgba(0, 240, 255, 0.2);
  }

  .nav-links.active {
    display: flex;
  }

  .nav-container {
    flex-wrap: wrap;
    position: relative;
  }

  .waterfall-grid {
    columns: 1;
  }

  .hero-title {
    font-size: 1.8rem;
  }

  .hero-image-wrapper img {
    width: 200px;
    height: 200px;
  }

  .hero-slogan {
    font-size: 1rem;
  }

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

  .tutorial-step {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .step-number {
    margin: 0 auto;
  }

  .carousel-prev { left: 5px; }
  .carousel-next { right: 5px; }

  h1 { font-size: 1.8rem; }
  h2 { font-size: 1.5rem; }
}

@media (max-width: 480px) {
  .container {
    padding: 0 15px;
  }

  .section {
    padding: 50px 0;
  }

  .hero-section {
    min-height: 60vh;
    padding: 40px 15px;
  }

  .cta-btn {
    padding: 12px 30px;
    font-size: 1rem;
  }

  .review-card {
    padding: 20px 15px;
  }
}