/* ============================================
   博彩棋牌游戏平台 - 全站样式
   配色方案: 深紫金主题 (与众不同的设计)
   ============================================ */

/* CSS Variables */
:root {
  --primary-dark: #0d0a1f;
  --primary-mid: #1a1040;
  --primary-light: #2d1b69;
  --accent-gold: #f0c040;
  --accent-gold-light: #ffe066;
  --accent-red: #e63946;
  --accent-green: #2ecc71;
  --accent-blue: #3498db;
  --text-white: #f5f5f5;
  --text-gray: #b8b8c8;
  --text-muted: #8888a0;
  --card-bg: rgba(30, 20, 60, 0.85);
  --card-border: rgba(240, 192, 64, 0.2);
  --shadow-gold: 0 4px 20px rgba(240, 192, 64, 0.15);
  --shadow-dark: 0 8px 32px rgba(0, 0, 0, 0.4);
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --font-main: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
  --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
  --transition-fast: 0.2s ease;
  --transition-normal: 0.35s ease;
}

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

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: 1.75;
  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);
}

ul, ol {
  list-style: none;
}

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

h1 { font-size: 2.2rem; margin-bottom: 1rem; }
h2 { font-size: 1.8rem; margin-bottom: 0.85rem; }
h3 { font-size: 1.4rem; margin-bottom: 0.7rem; }
h4 { font-size: 1.15rem; margin-bottom: 0.6rem; }

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

/* Container */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 16px;
}

/* ============================================
   Header & Navigation (非sticky)
   ============================================ */
.site-header {
  background: linear-gradient(180deg, var(--primary-mid), var(--primary-dark));
  padding: 12px 0;
  border-bottom: 2px solid var(--card-border);
  position: relative;
  z-index: 100;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
}

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

.main-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-wrap: wrap;
}

.main-nav a {
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text-gray);
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.main-nav a:hover,
.main-nav a.active {
  color: var(--accent-gold);
  background: rgba(240, 192, 64, 0.1);
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: 2px solid var(--accent-gold);
  color: var(--accent-gold);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  font-size: 1.2rem;
  cursor: pointer;
}

/* ============================================
   Hero Section
   ============================================ */
.hero-section {
  position: relative;
  overflow: hidden;
  padding: 0;
}

.hero-section .hero-img {
  width: 100%;
  height: auto;
  min-height: 200px;
  object-fit: cover;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(to bottom, rgba(13,10,31,0.3), rgba(13,10,31,0.8));
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 20px;
}

.hero-overlay h1 {
  font-size: 2.5rem;
  color: var(--accent-gold);
  text-shadow: 0 2px 15px rgba(240, 192, 64, 0.5);
  margin-bottom: 12px;
}

.hero-overlay p {
  font-size: 1.15rem;
  color: var(--text-white);
  max-width: 600px;
}

.cta-btn {
  display: inline-block;
  padding: 14px 36px;
  background: linear-gradient(135deg, var(--accent-gold), #d4a020);
  color: var(--primary-dark);
  font-weight: 700;
  font-size: 1.05rem;
  border-radius: 50px;
  margin-top: 18px;
  transition: all var(--transition-normal);
  box-shadow: 0 4px 15px rgba(240, 192, 64, 0.4);
}

.cta-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 25px rgba(240, 192, 64, 0.6);
  color: var(--primary-dark);
}

/* ============================================
   Section Common
   ============================================ */
.section {
  padding: 50px 0;
}

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

.section-title {
  text-align: center;
  margin-bottom: 36px;
}

.section-title h2 {
  color: var(--accent-gold);
  position: relative;
  display: inline-block;
  padding-bottom: 12px;
}

.section-title h2::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--accent-gold), transparent);
}

.section-title p {
  margin-top: 10px;
  color: var(--text-muted);
}

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

.video-wrapper img {
  width: 100%;
  transition: transform var(--transition-normal);
}

.video-wrapper:hover img {
  transform: scale(1.03);
}

.video-wrapper video {
  width: 100%;
  display: none;
  border-radius: var(--radius-md);
}

.video-wrapper.playing img {
  display: none;
}

.video-wrapper.playing video {
  display: block;
}

/* ============================================
   Game Cards Grid
   ============================================ */
.games-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.game-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all var(--transition-normal);
}

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

.game-card img {
  width: 100%;
  height: 180px;
  object-fit: cover;
}

.game-card-body {
  padding: 16px;
}

.game-card-body h3 {
  font-size: 1.1rem;
  color: var(--accent-gold);
  margin-bottom: 8px;
}

.game-card-body p {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-bottom: 12px;
  line-height: 1.6;
}

.game-card-body .cta-btn {
  padding: 10px 24px;
  font-size: 0.9rem;
  display: inline-block;
}

/* ============================================
   Promo / Recharge Section
   ============================================ */
.promo-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.promo-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all var(--transition-normal);
}

.promo-card:hover {
  box-shadow: var(--shadow-gold);
}

.promo-card img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.promo-card-body {
  padding: 18px;
}

.promo-card-body h3 {
  color: var(--accent-gold);
  margin-bottom: 8px;
}

/* ============================================
   Author / Expert Section
   ============================================ */
.author-box {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  padding: 24px;
  margin-bottom: 30px;
}

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

.author-info h4 {
  color: var(--accent-gold);
}

.author-info .author-title {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 6px;
}

/* ============================================
   Articles Grid
   ============================================ */
.articles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 20px;
}

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

.article-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-gold);
}

.article-card img {
  width: 100%;
  height: 180px;
  object-fit: cover;
}

.article-card-body {
  padding: 16px;
}

.article-card-body h3 {
  font-size: 1.05rem;
  color: var(--accent-gold);
  margin-bottom: 8px;
}

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

.article-card-body .read-more {
  display: inline-block;
  margin-top: 10px;
  color: var(--accent-gold);
  font-size: 0.9rem;
}

/* ============================================
   Download Section
   ============================================ */
.download-section {
  text-align: center;
}

.download-flex {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 40px;
  flex-wrap: wrap;
}

.download-qr img {
  width: 180px;
  height: 180px;
  border: 4px solid var(--accent-gold);
  border-radius: var(--radius-sm);
}

.download-badges {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.download-badges img {
  height: 50px;
  width: auto;
}

/* ============================================
   Payment Section
   ============================================ */
.payment-icons {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: center;
  margin-top: 20px;
}

.payment-icons img {
  height: 55px;
  width: auto;
  border-radius: var(--radius-sm);
  transition: transform var(--transition-fast);
}

.payment-icons img:hover {
  transform: scale(1.1);
}

/* ============================================
   License Section
   ============================================ */
.license-box {
  display: flex;
  align-items: center;
  gap: 30px;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  padding: 30px;
  flex-wrap: wrap;
}

.license-box img {
  width: 200px;
  flex-shrink: 0;
}

.license-info h3 {
  color: var(--accent-gold);
  margin-bottom: 10px;
}

/* ============================================
   Support Section
   ============================================ */
.support-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.support-item {
  text-align: center;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  padding: 24px 16px;
  transition: all var(--transition-normal);
}

.support-item:hover {
  border-color: var(--accent-gold);
  box-shadow: var(--shadow-gold);
}

.support-item img {
  width: 60px;
  height: 60px;
  margin: 0 auto 12px;
  border-radius: 50%;
}

.support-item h4 {
  color: var(--accent-gold);
  font-size: 1rem;
}

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

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

.faq-item {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  margin-bottom: 12px;
  overflow: hidden;
}

.faq-question {
  padding: 18px 20px;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: 600;
  color: var(--text-white);
  transition: background var(--transition-fast);
}

.faq-question:hover {
  background: rgba(240, 192, 64, 0.05);
}

.faq-question .faq-icon {
  color: var(--accent-gold);
  font-size: 1.2rem;
  transition: transform var(--transition-fast);
}

.faq-item.open .faq-icon {
  transform: rotate(45deg);
}

.faq-answer {
  padding: 0 20px;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s ease;
}

.faq-item.open .faq-answer {
  padding: 0 20px 18px;
  max-height: 500px;
}

.faq-answer p {
  color: var(--text-gray);
  line-height: 1.7;
}

/* ============================================
   Reviews Section
   ============================================ */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}

.review-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  padding: 22px;
  transition: all var(--transition-normal);
}

.review-card:hover {
  border-color: var(--accent-gold);
}

.review-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 12px;
}

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

.review-meta h4 {
  font-size: 0.95rem;
  color: var(--text-white);
}

.review-meta .review-badge {
  font-size: 0.75rem;
  color: var(--accent-gold);
  background: rgba(240, 192, 64, 0.15);
  padding: 2px 8px;
  border-radius: 20px;
  display: inline-block;
  margin-top: 2px;
}

.review-stars {
  color: var(--accent-gold);
  font-size: 0.9rem;
  margin-bottom: 8px;
}

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

.review-date {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-top: 10px;
}

/* ============================================
   About Section
   ============================================ */
.about-content {
  max-width: 900px;
  margin: 0 auto;
}

.about-content h3 {
  color: var(--accent-gold);
  margin-top: 24px;
}

/* ============================================
   Breadcrumb
   ============================================ */
.breadcrumb {
  padding: 12px 0;
  font-size: 0.85rem;
}

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

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

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

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

/* ============================================
   Responsible Gaming
   ============================================ */
.responsible-box {
  background: rgba(230, 57, 70, 0.1);
  border: 1px solid rgba(230, 57, 70, 0.3);
  border-radius: var(--radius-md);
  padding: 24px;
  margin-top: 20px;
}

.responsible-box h3 {
  color: var(--accent-red);
  margin-bottom: 12px;
}

/* ============================================
   Footer
   ============================================ */
.site-footer {
  background: linear-gradient(180deg, var(--primary-mid), #050310);
  padding: 50px 0 20px;
  border-top: 2px solid var(--card-border);
}

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

.footer-col h4 {
  color: var(--accent-gold);
  margin-bottom: 16px;
  font-size: 1rem;
}

.footer-col a {
  display: block;
  color: var(--text-muted);
  font-size: 0.88rem;
  padding: 4px 0;
  transition: color var(--transition-fast);
}

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

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

.footer-social img {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  transition: transform var(--transition-fast);
}

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

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

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

.footer-payment {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin: 14px 0;
  flex-wrap: wrap;
}

.footer-payment img {
  height: 35px;
  border-radius: 6px;
}

.footer-age {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-top: 10px;
}

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

/* ============================================
   Inner Page Content
   ============================================ */
.page-content {
  padding: 30px 0 50px;
}

.page-content article {
  max-width: 900px;
  margin: 0 auto;
}

.page-content article h1 {
  color: var(--accent-gold);
  margin-bottom: 20px;
}

.page-content article h2 {
  color: var(--accent-gold);
  margin-top: 30px;
}

.page-content article h3 {
  color: var(--accent-gold-light);
  margin-top: 20px;
}

.content-img {
  border-radius: var(--radius-md);
  margin: 20px 0;
  box-shadow: var(--shadow-dark);
}

.info-table {
  width: 100%;
  border-collapse: collapse;
  margin: 20px 0;
  background: var(--card-bg);
  border-radius: var(--radius-md);
  overflow: hidden;
}

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

.info-table th {
  background: rgba(240, 192, 64, 0.1);
  color: var(--accent-gold);
  font-weight: 600;
}

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

/* ============================================
   App Download Page
   ============================================ */
.app-hero {
  text-align: center;
  padding: 60px 20px;
  background: linear-gradient(135deg, var(--primary-mid), var(--primary-light));
  border-radius: var(--radius-lg);
  margin: 20px 0;
}

.app-features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin: 30px 0;
}

.app-feature-item {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  padding: 24px;
  text-align: center;
  transition: all var(--transition-normal);
}

.app-feature-item:hover {
  border-color: var(--accent-gold);
  box-shadow: var(--shadow-gold);
}

.app-feature-item h4 {
  color: var(--accent-gold);
  margin-bottom: 8px;
}

/* ============================================
   Animations
   ============================================ */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

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

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

/* ============================================
   Responsive Design - Mobile First
   ============================================ */
@media (max-width: 992px) {
  .games-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .support-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .app-features {
    grid-template-columns: repeat(2, 1fr);
  }
}

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

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

  .header-inner {
    flex-wrap: wrap;
  }

  .main-nav {
    display: none;
    width: 100%;
    flex-direction: column;
    background: var(--primary-mid);
    border-radius: var(--radius-sm);
    padding: 10px;
    margin-top: 8px;
  }

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

  .main-nav a {
    width: 100%;
    text-align: center;
    padding: 12px;
  }

  .mobile-menu-btn {
    display: block;
  }

  .hero-overlay h1 {
    font-size: 1.6rem;
  }

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

  .promo-cards {
    grid-template-columns: 1fr;
  }

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

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

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

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

  .download-flex {
    flex-direction: column;
  }

  .app-features {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 35px 0;
  }
}

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

  .container {
    padding: 0 12px;
  }

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

  .game-card img {
    height: 150px;
  }
}

/* ============================================
   Utility Classes
   ============================================ */
.text-center { text-align: center; }
.text-gold { color: var(--accent-gold); }
.text-muted { color: var(--text-muted); }
.mt-20 { margin-top: 20px; }
.mb-20 { margin-bottom: 20px; }
.mt-30 { margin-top: 30px; }
.mb-30 { margin-bottom: 30px; }

/* Scrollbar */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: var(--primary-dark);
}
::-webkit-scrollbar-thumb {
  background: var(--primary-light);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--accent-gold);
}