/* ============================================
   全局样式 - 暗金奢华主题
   独特配色：深紫黑底 + 金色强调 + 红色CTA
   字体组合：思源黑体 + 系统字体栈
   ============================================ */

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

:root {
  --clr-bg-primary: #0d0b1a;
  --clr-bg-secondary: #1a1530;
  --clr-bg-card: #221d3a;
  --clr-bg-elevated: #2d2650;
  --clr-gold: #f0c040;
  --clr-gold-light: #ffe680;
  --clr-gold-dark: #c89b20;
  --clr-red: #e63946;
  --clr-red-hover: #ff4d5a;
  --clr-text: #e8e6f0;
  --clr-text-muted: #9a95b0;
  --clr-text-dim: #6b6580;
  --clr-border: #3a3460;
  --clr-accent-teal: #2dd4bf;
  --clr-accent-purple: #a78bfa;
  --font-main: 'Source Han Sans SC', 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --font-display: 'Source Han Serif SC', 'Noto Serif SC', 'STSong', serif;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 30px;
  --shadow-card: 0 4px 24px rgba(0,0,0,0.4);
  --shadow-glow: 0 0 20px rgba(240,192,64,0.15);
  --transition-fast: 0.2s ease;
  --transition-normal: 0.35s ease;
  --max-width: 1200px;
}

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

body {
  font-family: var(--font-main);
  background-color: var(--clr-bg-primary);
  color: var(--clr-text);
  line-height: 1.75;
  overflow-x: hidden;
  min-height: 100vh;
}

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

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

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

/* ============================================
   Layout Utilities
   ============================================ */
.site-container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 16px;
}

.section-block {
  padding: 48px 0;
}

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

.section-heading {
  font-family: var(--font-display);
  font-size: 1.8rem;
  color: var(--clr-gold);
  text-align: center;
  margin-bottom: 12px;
  position: relative;
  padding-bottom: 16px;
}

.section-heading::after {
  content: '';
  display: block;
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--clr-gold), var(--clr-red));
  margin: 12px auto 0;
  border-radius: 2px;
}

.section-subtitle {
  text-align: center;
  color: var(--clr-text-muted);
  font-size: 0.95rem;
  margin-bottom: 32px;
}

/* ============================================
   Header / Navigation (Non-sticky)
   ============================================ */
.site-header {
  background: linear-gradient(180deg, #0d0b1a 0%, #1a1530 100%);
  border-bottom: 1px solid var(--clr-border);
  position: relative;
  z-index: 100;
}

.header-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 0;
}

.site-logo {
  display: flex;
  align-items: center;
  gap: 8px;
}

.site-logo img {
  height: 48px;
  width: auto;
}

.header-cta {
  display: flex;
  gap: 10px;
  align-items: center;
}

.btn {
  display: inline-block;
  padding: 10px 24px;
  border-radius: var(--radius-xl);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  text-align: center;
  transition: all var(--transition-fast);
  line-height: 1.4;
}

.btn--primary {
  background: linear-gradient(135deg, var(--clr-red), #c0392b);
  color: #fff;
}

.btn--primary:hover {
  background: linear-gradient(135deg, var(--clr-red-hover), var(--clr-red));
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(230,57,70,0.4);
}

.btn--gold {
  background: linear-gradient(135deg, var(--clr-gold), var(--clr-gold-dark));
  color: #1a1530;
}

.btn--gold:hover {
  background: linear-gradient(135deg, var(--clr-gold-light), var(--clr-gold));
  transform: translateY(-1px);
  box-shadow: var(--shadow-glow);
}

.btn--outline {
  background: transparent;
  border: 2px solid var(--clr-gold);
  color: var(--clr-gold);
}

.btn--outline:hover {
  background: var(--clr-gold);
  color: #1a1530;
}

/* Main Nav */
.main-nav {
  background: var(--clr-bg-secondary);
  border-top: 1px solid var(--clr-border);
}

.nav-list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0;
}

.nav-list li a {
  display: block;
  padding: 14px 18px;
  color: var(--clr-text);
  font-size: 0.92rem;
  font-weight: 500;
  position: relative;
  transition: color var(--transition-fast), background var(--transition-fast);
}

.nav-list li a:hover,
.nav-list li a.active {
  color: var(--clr-gold);
  background: rgba(240,192,64,0.08);
}

.nav-list li a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--clr-gold);
  transition: all var(--transition-normal);
  transform: translateX(-50%);
}

.nav-list li a:hover::after,
.nav-list li a.active::after {
  width: 70%;
}

/* Mobile hamburger */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.nav-toggle span {
  display: block;
  width: 26px;
  height: 3px;
  background: var(--clr-gold);
  margin: 5px 0;
  border-radius: 2px;
  transition: var(--transition-fast);
}

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

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

.hero-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 30px;
  background: linear-gradient(transparent, rgba(13,11,26,0.9));
  text-align: center;
}

.hero-overlay h1 {
  font-size: 2rem;
  color: var(--clr-gold);
  font-family: var(--font-display);
}

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

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

.video-module .video-poster-wrap {
  position: relative;
}

.video-module .play-btn-overlay {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 80px;
  height: 80px;
  background: rgba(230,57,70,0.85);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-normal);
}

.video-module:hover .play-btn-overlay {
  background: rgba(230,57,70,1);
  transform: translate(-50%, -50%) scale(1.1);
}

.play-btn-overlay::after {
  content: '';
  display: block;
  width: 0;
  height: 0;
  border-left: 22px solid #fff;
  border-top: 14px solid transparent;
  border-bottom: 14px solid transparent;
  margin-left: 4px;
}

/* ============================================
   Card Grid
   ============================================ */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}

.card-grid--3 {
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
}

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

.game-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-glow), var(--shadow-card);
  border-color: var(--clr-gold-dark);
}

.game-card__img {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
}

.game-card__body {
  padding: 16px;
}

.game-card__title {
  font-size: 1.1rem;
  color: var(--clr-gold);
  margin-bottom: 8px;
  font-weight: 600;
}

.game-card__desc {
  font-size: 0.88rem;
  color: var(--clr-text-muted);
  margin-bottom: 14px;
  line-height: 1.6;
}

.game-card__cta {
  display: inline-block;
  padding: 8px 20px;
  background: linear-gradient(135deg, var(--clr-red), #c0392b);
  color: #fff;
  border-radius: var(--radius-xl);
  font-size: 0.85rem;
  font-weight: 600;
}

.game-card__cta:hover {
  color: #fff;
  background: linear-gradient(135deg, var(--clr-red-hover), var(--clr-red));
}

/* ============================================
   Promo / Recharge Banner
   ============================================ */
.promo-banner {
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  margin: 0 auto;
  max-width: 800px;
}

.promo-banner img {
  width: 100%;
  height: auto;
}

/* ============================================
   Lottery Module
   ============================================ */
.lottery-module {
  background: var(--clr-bg-card);
  border-radius: var(--radius-md);
  padding: 24px;
  border: 1px solid var(--clr-border);
  box-shadow: var(--shadow-card);
}

.lottery-module img {
  width: 100%;
  border-radius: var(--radius-sm);
}

/* ============================================
   Article List
   ============================================ */
.article-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}

.article-item {
  background: var(--clr-bg-card);
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--clr-border);
  transition: transform var(--transition-normal);
}

.article-item:hover {
  transform: translateY(-4px);
}

.article-item__img {
  width: 100%;
  aspect-ratio: 16/10;
  object-fit: cover;
}

.article-item__body {
  padding: 16px;
}

.article-item__title {
  font-size: 1rem;
  color: var(--clr-gold);
  margin-bottom: 8px;
}

.article-item__excerpt {
  font-size: 0.85rem;
  color: var(--clr-text-muted);
  line-height: 1.6;
}

.article-item__meta {
  font-size: 0.78rem;
  color: var(--clr-text-dim);
  margin-top: 10px;
}

/* ============================================
   Reviews
   ============================================ */
.review-card {
  background: var(--clr-bg-card);
  border-radius: var(--radius-md);
  padding: 20px;
  border: 1px solid var(--clr-border);
}

.review-card__header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.review-card__avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  flex-shrink: 0;
}

.review-card__info {
  flex: 1;
}

.review-card__name {
  font-weight: 600;
  color: var(--clr-text);
  font-size: 0.95rem;
}

.review-card__meta {
  font-size: 0.78rem;
  color: var(--clr-text-dim);
}

.review-card__stars {
  color: var(--clr-gold);
  font-size: 1rem;
  margin-bottom: 8px;
}

.review-card__text {
  font-size: 0.88rem;
  color: var(--clr-text-muted);
  line-height: 1.65;
}

.review-card__date {
  font-size: 0.75rem;
  color: var(--clr-text-dim);
  margin-top: 10px;
  text-align: right;
}

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

.faq-item {
  border-bottom: 1px solid var(--clr-border);
}

.faq-question {
  width: 100%;
  background: none;
  border: none;
  padding: 18px 40px 18px 0;
  font-size: 1rem;
  color: var(--clr-text);
  text-align: left;
  cursor: pointer;
  font-family: var(--font-main);
  position: relative;
  font-weight: 500;
  transition: color var(--transition-fast);
}

.faq-question:hover {
  color: var(--clr-gold);
}

.faq-question::after {
  content: '+';
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.4rem;
  color: var(--clr-gold);
  transition: transform var(--transition-fast);
}

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

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s ease;
  padding: 0 0;
}

.faq-item.open .faq-answer {
  max-height: 500px;
  padding: 0 0 18px;
}

.faq-answer p {
  font-size: 0.9rem;
  color: var(--clr-text-muted);
  line-height: 1.7;
}

/* ============================================
   Payment Methods
   ============================================ */
.payment-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: center;
}

.payment-grid img {
  height: 60px;
  width: auto;
  border-radius: var(--radius-sm);
}

/* ============================================
   Author / E-E-A-T Box
   ============================================ */
.author-box {
  display: flex;
  gap: 20px;
  background: var(--clr-bg-card);
  border-radius: var(--radius-md);
  padding: 24px;
  border: 1px solid var(--clr-border);
  align-items: flex-start;
}

.author-box__avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  flex-shrink: 0;
  border: 3px solid var(--clr-gold);
}

.author-box__name {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--clr-gold);
  margin-bottom: 4px;
}

.author-box__title {
  font-size: 0.85rem;
  color: var(--clr-text-dim);
  margin-bottom: 8px;
}

.author-box__bio {
  font-size: 0.88rem;
  color: var(--clr-text-muted);
  line-height: 1.65;
}

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

.license-section img {
  max-width: 200px;
  margin: 0 auto 16px;
}

/* ============================================
   Support Section
   ============================================ */
.support-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 20px;
  text-align: center;
}

.support-item {
  background: var(--clr-bg-card);
  border-radius: var(--radius-md);
  padding: 24px 16px;
  border: 1px solid var(--clr-border);
  transition: transform var(--transition-fast);
}

.support-item:hover {
  transform: translateY(-3px);
}

.support-item img {
  width: 56px;
  height: 56px;
  margin: 0 auto 12px;
}

.support-item__title {
  font-weight: 600;
  color: var(--clr-text);
  margin-bottom: 6px;
}

.support-item__desc {
  font-size: 0.82rem;
  color: var(--clr-text-muted);
}

/* ============================================
   About Section
   ============================================ */
.about-content {
  max-width: 800px;
  margin: 0 auto;
}

.about-content p {
  margin-bottom: 16px;
  text-indent: 2em;
}

/* ============================================
   Breadcrumb
   ============================================ */
.breadcrumb {
  padding: 12px 0;
  font-size: 0.82rem;
  color: var(--clr-text-dim);
}

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

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

.breadcrumb span {
  margin: 0 6px;
  color: var(--clr-text-dim);
}

/* ============================================
   Inner Page Content
   ============================================ */
.page-content {
  max-width: 900px;
  margin: 0 auto;
}

.page-content h1 {
  font-size: 1.8rem;
  color: var(--clr-gold);
  font-family: var(--font-display);
  margin-bottom: 16px;
  line-height: 1.4;
}

.page-content h2 {
  font-size: 1.4rem;
  color: var(--clr-gold-light);
  margin: 28px 0 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--clr-border);
}

.page-content h3 {
  font-size: 1.15rem;
  color: var(--clr-accent-teal);
  margin: 20px 0 10px;
}

.page-content p {
  margin-bottom: 14px;
  text-indent: 2em;
  line-height: 1.8;
}

.page-content ul, .page-content ol {
  margin: 12px 0 12px 2em;
}

.page-content li {
  margin-bottom: 6px;
  line-height: 1.7;
}

.page-content img {
  border-radius: var(--radius-sm);
  margin: 16px 0;
  box-shadow: var(--shadow-card);
}

.page-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0;
}

.page-content table th,
.page-content table td {
  padding: 10px 14px;
  border: 1px solid var(--clr-border);
  text-align: left;
  font-size: 0.9rem;
}

.page-content table th {
  background: var(--clr-bg-elevated);
  color: var(--clr-gold);
  font-weight: 600;
}

.page-content table td {
  color: var(--clr-text-muted);
}

/* ============================================
   Disclaimer
   ============================================ */
.disclaimer-box {
  background: rgba(230,57,70,0.08);
  border: 1px solid rgba(230,57,70,0.3);
  border-radius: var(--radius-md);
  padding: 20px;
  margin: 24px 0;
}

.disclaimer-box h3 {
  color: var(--clr-red);
  margin-bottom: 10px;
}

.disclaimer-box p, .disclaimer-box li {
  font-size: 0.88rem;
  color: var(--clr-text-muted);
}

/* ============================================
   APP Download Page
   ============================================ */
.app-hero {
  text-align: center;
  padding: 40px 0;
}

.app-hero img {
  max-width: 400px;
  margin: 0 auto 24px;
}

.download-btns {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.download-btns img {
  height: 60px;
  width: auto;
  cursor: pointer;
  transition: transform var(--transition-fast);
}

.download-btns img:hover {
  transform: scale(1.05);
}

/* ============================================
   Footer
   ============================================ */
.site-footer {
  background: linear-gradient(180deg, var(--clr-bg-secondary), #0a0818);
  border-top: 1px solid var(--clr-border);
  padding: 40px 0 20px;
  margin-top: 40px;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 30px;
  margin-bottom: 30px;
}

.footer-col h4 {
  color: var(--clr-gold);
  font-size: 1rem;
  margin-bottom: 14px;
  font-weight: 600;
}

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

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

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

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

.footer-social {
  display: flex;
  gap: 10px;
  margin-top: 10px;
}

.footer-social img {
  width: 36px;
  height: 36px;
  border-radius: 6px;
  transition: transform var(--transition-fast);
}

.footer-social img:hover {
  transform: scale(1.15);
}

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

.footer-bottom p {
  font-size: 0.8rem;
  color: var(--clr-text-dim);
  margin-bottom: 6px;
}

.footer-payments {
  display: flex;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
  margin: 12px 0;
}

.footer-payments img {
  height: 32px;
  width: auto;
  border-radius: 4px;
}

.footer-age {
  display: inline-block;
  margin: 8px 0;
}

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

/* ============================================
   Responsive - Mobile First Optimization
   ============================================ */
@media (max-width: 768px) {
  html {
    font-size: 15px;
  }

  .site-container {
    padding: 0 12px;
  }

  .header-top {
    padding: 10px 0;
  }

  .site-logo img {
    height: 36px;
  }

  .nav-toggle {
    display: block;
  }

  .nav-list {
    display: none;
    flex-direction: column;
    width: 100%;
  }

  .nav-list.open {
    display: flex;
  }

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

  .section-heading {
    font-size: 1.4rem;
  }

  .section-block {
    padding: 32px 0;
  }

  .card-grid {
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 16px;
  }

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

  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

  .author-box {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  .hero-overlay h1 {
    font-size: 1.4rem;
  }

  .page-content h1 {
    font-size: 1.4rem;
  }

  .page-content h2 {
    font-size: 1.2rem;
  }

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

  .review-card {
    padding: 16px;
  }

  .btn {
    padding: 8px 18px;
    font-size: 0.85rem;
  }
}

@media (max-width: 480px) {
  .card-grid {
    grid-template-columns: 1fr;
  }

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

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

  .download-btns {
    flex-direction: column;
    align-items: center;
  }

  .payment-grid img {
    height: 45px;
  }
}

/* ============================================
   Animations
   ============================================ */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

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

.gold-shimmer {
  background: linear-gradient(90deg, var(--clr-gold-dark), var(--clr-gold-light), var(--clr-gold-dark));
  background-size: 200% 100%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: shimmer 3s linear infinite;
}

/* ============================================
   Print Styles
   ============================================ */
@media print {
  .site-header, .site-footer, .nav-toggle {
    display: none;
  }
  body {
    background: #fff;
    color: #000;
  }
}