:root {
  --primary-color: #FFD700; /* Gold */
  --secondary-color: #8B0000; /* Dark Red */
  --text-light: #f0f0f0;
  --text-dark: #333;
  --header-offset: 110px; /* Desktop: header-top (60px) + main-nav (50px) */
}

@media (max-width: 768px) {
  :root {
    --header-offset: 114px; /* Mobile: header-top (60px) + mobile-nav-buttons (54px) */
  }
}

body {
  margin: 0;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
  color: var(--text-dark);
  padding-top: var(--header-offset);
  overflow-x: hidden;
}

a {
  text-decoration: none;
  color: inherit;
}

/* Base Container Styling */
.header-container, .nav-container, .footer-container {
  max-width: 1200px;
  margin: 0 auto;
  padding-left: 20px;
  padding-right: 20px;
  box-sizing: border-box;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 10px 20px;
  border-radius: 5px;
  font-weight: bold;
  text-align: center;
  transition: background-color 0.3s ease, color 0.3s ease;
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
}

.btn-register {
  background-color: var(--primary-color);
  color: var(--secondary-color);
  border: 1px solid var(--primary-color);
}
.btn-register:hover {
  background-color: var(--secondary-color);
  color: var(--primary-color);
  border-color: var(--secondary-color);
}

.btn-login {
  background-color: var(--secondary-color);
  color: var(--primary-color);
  border: 1px solid var(--secondary-color);
}
.btn-login:hover {
  background-color: var(--primary-color);
  color: var(--secondary-color);
  border-color: var(--primary-color);
}

/* Header Styling */
.site-header {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 1000;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.header-top {
  background-color: var(--secondary-color); /* Dark Red */
  color: var(--text-light);
  padding: 15px 0;
}

.header-top .header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 28px;
  font-weight: bold;
  color: var(--primary-color); /* Gold */
  text-transform: uppercase;
  letter-spacing: 1px;
}

.desktop-nav-buttons {
  display: flex;
  gap: 10px;
  align-items: center;
}

.mobile-nav-buttons {
  display: none; /* Hidden on desktop */
}

.main-nav {
  background-color: var(--primary-color); /* Gold */
  padding: 10px 0;
  display: flex; /* Desktop default: flex */
}

.main-nav .nav-container {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 25px;
}

.nav-link {
  color: var(--secondary-color); /* Dark Red */
  font-weight: bold;
  padding: 5px 0;
  transition: color 0.3s ease;
  white-space: nowrap;
}

.nav-link:hover {
  color: #fff;
}

/* Hamburger Menu (Mobile Only) */
.hamburger-menu {
  display: none; /* Hidden on desktop */
  width: 30px;
  height: 20px;
  position: relative;
  cursor: pointer;
  z-index: 1001;
  flex-shrink: 0;
  margin-right: 15px; /* Space from logo */
}

.hamburger-menu span {
  display: block;
  height: 3px;
  width: 100%;
  background-color: var(--primary-color);
  position: absolute;
  left: 0;
  transition: all 0.3s ease;
}

.hamburger-menu span:nth-child(1) { top: 0; }
.hamburger-menu span:nth-child(2) { top: 8px; }
.hamburger-menu span:nth-child(3) { top: 16px; }

.hamburger-menu.active span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}
.hamburger-menu.active span:nth-child(2) {
  opacity: 0;
}
.hamburger-menu.active span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

/* Mobile Menu Overlay */
.mobile-menu-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

.mobile-menu-overlay.active {
  opacity: 1;
  visibility: visible;
}

/* Footer Styling */
.site-footer {
  background-color: #1a1a1a; /* Dark Gray */
  color: var(--text-light);
  padding: 40px 0 20px;
  font-size: 14px;
}

.site-footer a {
  color: var(--primary-color);
}
.site-footer a:hover {
  text-decoration: underline;
}

.footer-container {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 30px;
  padding-bottom: 30px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-col {
  flex: 1;
  min-width: 200px;
}

.footer-logo {
  font-size: 24px;
  font-weight: bold;
  color: var(--primary-color);
  text-transform: uppercase;
  margin-bottom: 15px;
  display: block;
}

.footer-col h3 {
  color: var(--primary-color);
  font-size: 18px;
  margin-bottom: 15px;
}

.footer-col ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

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

.footer-bottom {
  text-align: center;
  padding-top: 20px;
  color: #aaa;
}

/* Responsive Styles */
@media (max-width: 768px) {
  .header-container, .nav-container, .footer-container {
    padding-left: 15px;
    padding-right: 15px;
    max-width: none; /* Ensure full width on mobile */
    width: 100%;
  }

  /* Header Top Mobile */
  .header-top .header-container {
    justify-content: flex-start; /* Align hamburger to left, logo will center with flex:1 */
    padding-left: 15px;
    padding-right: 15px;
    min-height: 60px;
  }

  .hamburger-menu {
    display: block;
    order: 0;
  }

  .logo {
    flex: 1 !important; /* Take remaining space */
    display: flex !important;
    justify-content: center !important; /* Center the logo */
    align-items: center !important;
    font-size: 24px;
    order: 1;
    /* No max-width here as there are no elements on the right to balance */
  }

  .desktop-nav-buttons {
    display: none;
  }

  /* Mobile Nav Buttons */
  .mobile-nav-buttons {
    display: flex !important;
    width: 100%; max-width: 100%;
    box-sizing: border-box;
    padding: 10px 15px;
    overflow: hidden;
    gap: 10px;
    flex-wrap: nowrap;
    background-color: var(--secondary-color);
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
  }
  .mobile-nav-buttons .btn {
    flex: 1; min-width: 0;
    max-width: calc(50% - 5px);
    box-sizing: border-box;
    padding: 8px 12px;
    font-size: 13px;
    white-space: normal;
    word-wrap: break-word;
    overflow-wrap: break-word;
  }

  /* Main Nav Mobile */
  .main-nav {
    display: none; /* Hidden by default */
    position: fixed;
    top: var(--header-offset); /* Position below header */
    left: 0;
    width: 80%; /* Menu width */
    max-width: 300px; /* Limit mobile menu width */
    height: calc(100% - var(--header-offset));
    background-color: var(--primary-color);
    box-shadow: 2px 0 10px rgba(0, 0, 0, 0.2);
    transform: translateX(-100%); /* Slide out to the left */
    transition: transform 0.3s ease;
    overflow-y: auto;
    z-index: 1000;
  }

  .main-nav.active {
    display: block; /* Show menu */
    transform: translateX(0); /* Slide in */
  }

  .main-nav .nav-container {
    flex-direction: column;
    align-items: flex-start;
    padding: 20px 15px;
    gap: 15px;
  }

  .nav-link {
    width: 100%;
    padding: 10px 0;
    border-bottom: 1px solid rgba(139, 0, 0, 0.2); /* Subtle separator */
    color: var(--secondary-color);
  }
  .nav-link:last-child {
    border-bottom: none;
  }

  /* Footer Mobile */
  .footer-container {
    flex-direction: column;
    text-align: center;
  }
  .footer-col {
    min-width: auto;
    width: 100%;
  }
  .footer-col h3 {
    margin-top: 20px;
  }
  .footer-col ul {
    margin-bottom: 20px;
  }

  /* Mobile content overflow prevention */
  .page-content img {
    max-width: 100% !important;
    height: auto !important;
    display: block;
  }
  .page-content {
    overflow-x: hidden;
    max-width: 100%;
  }
  body {
    overflow-x: hidden;
  }
}

/* No-scroll class for body when mobile menu is open */
body.no-scroll {
  overflow: hidden;
}
/* Payment Methods 图标容器样式 */
.payment-icons {
  display: flex;
  flex-wrap: wrap;
  flex-direction: row;
  align-items: flex-start;
  gap: 5px;
}

.payment-icons img,
.payment-icon {
  max-height: 50px;
  height: auto;
  width: auto;
  display: block;
}

/* Game Providers 图标容器样式 */
.game-providers-icons {
  display: flex;
  flex-wrap: wrap;
  flex-direction: row;
  align-items: flex-start;
  gap: 8px;
  width: 100%;
}

.game-providers-icons img,
.game-provider-icon {
  max-height: 50px;
  height: auto;
  width: auto;
  display: block;
}

/* Social Media 图标容器样式 */
.social-media-icons {
  display: flex;
  flex-wrap: wrap;
  flex-direction: row;
  align-items: flex-start;
  gap: 8px;
  width: 100%;
}

.social-media-icons img,
.social-media-icon {
  max-height: 50px;
  height: auto;
  width: auto;
  display: block;
}
/* 移动端内容区防溢出（系统追加，请勿删除） */
@media (max-width: 768px) {
  .page-content img {
    max-width: 100% !important;
    height: auto !important;
    display: block;
  }
  .page-content {
    overflow-x: hidden;
    max-width: 100%;
  }
  body {
    overflow-x: hidden;
  }
}