:root {
  --primary: #C61F1F;
  --secondary: #E53030;
  --btn-gradient: linear-gradient(180deg, #FFB04A 0%, #D86A14 100%);
  --card-bg: #2A1212;
  --page-bg: #140C0C;
  --text-main: #FFF1E8;
  --border-color: #6A1E1E;
  --gold: #F3C54D;
  --deep-red: #7E0D0D;
  --header-offset: 166px;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  background-color: var(--page-bg);
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  padding-top: var(--header-offset);
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  box-shadow: 0 2px 10px rgba(0,0,0,0.6);
  background-color: transparent;
}

.header-top {
  background-color: var(--primary);
  width: 100%;
  min-height: 68px;
}

.header-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 30px;
  min-height: 68px;
}

.logo {
  display: inline-block;
  text-decoration: none;
  font-size: 2.2rem;
  font-weight: 900;
  color: var(--gold);
  text-transform: uppercase;
  letter-spacing: 1px;
  background: linear-gradient(180deg, #ffd700 0%, #b8860b 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  text-shadow: 0 2px 4px rgba(0,0,0,0.3);
}

.desktop-nav-buttons {
  display: flex;
  gap: 12px;
  align-items: center;
}

.btn {
  display: inline-block;
  padding: 10px 24px;
  border-radius: 50px;
  font-weight: 700;
  font-size: 1rem;
  text-decoration: none;
  transition: all 0.3s ease;
  border: 2px solid transparent;
  line-height: normal;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(0,0,0,0.4);
}

.btn-register {
  background: var(--btn-gradient);
  color: #fff;
  border-color: var(--gold);
}

.btn-login {
  background: transparent;
  color: #fff;
  border: 2px solid #fff;
}

.btn-login:hover {
  background: #fff;
  color: var(--primary);
}

.main-nav {
  background-color: var(--deep-red);
  width: 100%;
  display: flex;
  min-height: 52px;
  border-top: 2px solid var(--border-color);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-direction: row;
  justify-content: center;
  align-items: center;
  gap: 0;
  padding: 8px 20px;
  width: 100%;
}

.nav-container a {
  color: var(--text-main);
  text-decoration: none;
  font-size: 1rem;
  font-weight: 600;
  padding: 10px 16px;
  border-radius: 6px;
  transition: all 0.3s ease;
  white-space: nowrap;
  display: inline-block;
  border-bottom: 2px solid transparent;
}

.nav-container a:hover {
  color: var(--gold);
  background-color: rgba(243, 197, 77, 0.1);
  border-bottom-color: var(--gold);
}

.nav-container a:first-child {
  font-weight: 800;
  color: var(--gold);
}

.nav-container a:first-child:hover {
  background-color: transparent;
  border-bottom-color: transparent;
}

.hamburger-menu {
  display: none;
}

.mobile-menu-overlay {
  display: none;
}

.mobile-actions {
  display: none;
}

.site-footer {
  background: linear-gradient(135deg, #1a0a0a, var(--deep-red));
  color: var(--text-main);
  border-top: 3px solid var(--border-color);
  padding: 60px 20px 0;
  margin-top: 60px;
}

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-column {
  flex: 1;
  min-width: 250px;
}

.footer-column:first-child {
  flex: 2;
}

.footer-logo {
  font-size: 2rem;
  font-weight: 900;
  color: var(--gold);
  text-decoration: none;
  text-transform: uppercase;
  display: inline-block;
  margin-bottom: 15px;
  background: linear-gradient(180deg, #ffd700 0%, #b8860b 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.footer-description {
  font-size: 0.95rem;
  line-height: 1.8;
  opacity: 0.9;
  max-width: 450px;
}

.footer-heading {
  color: var(--gold);
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 15px;
  text-transform: uppercase;
  letter-spacing: 1px;
  border-bottom: 2px solid var(--border-color);
  padding-bottom: 10px;
}

.footer-nav {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-nav a {
  color: var(--text-main);
  text-decoration: none;
  font-size: 0.95rem;
  padding: 4px 0;
  transition: all 0.3s ease;
  display: inline-block;
}

.footer-nav a:hover {
  color: var(--gold);
  padding-left: 8px;
}

.footer-bottom {
  text-align: center;
  padding: 25px 20px;
  border-top: 1px solid var(--border-color);
}

.footer-bottom p {
  font-size: 0.9rem;
  opacity: 0.8;
  color: var(--text-main);
}

@media (max-width: 768px) {
  :root {
    --header-offset: 146px;
  }

  body {
    padding-top: var(--header-offset);
  }

  .header-container {
    padding-left: 15px;
    padding-right: 15px;
    max-width: none;
    width: 100%;
  }

  .header-top {
    min-height: 60px;
  }

  .header-container {
    min-height: 60px;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
  }

  .logo {
    font-size: 1.8rem;
    margin: 0 auto;
  }

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

  .main-nav {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 280px;
    height: 100vh;
    background-color: var(--deep-red);
    flex-direction: column;
    justify-content: flex-start;
    align-items: flex-start;
    transform: translateX(-100%);
    transition: transform 0.3s ease;
    z-index: 1001;
    overflow-y: auto;
    padding-top: 70px;
    box-shadow: 2px 0 15px rgba(0,0,0,0.5);
  }

  .main-nav.active {
    transform: translateX(0);
  }

  .nav-container {
    flex-direction: column;
    align-items: flex-start;
    padding: 0;
    gap: 0;
    width: 100%;
    max-width: none;
  }

  .nav-container a {
    display: block;
    width: 100%;
    text-align: left;
    padding: 14px 25px;
    border-radius: 0;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    font-size: 1rem;
  }

  .nav-container a:last-child {
    border-bottom: none;
  }

  .hamburger-menu {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 6px;
    width: 48px;
    height: 48px;
    background: transparent;
    border: 2px solid var(--gold);
    border-radius: 8px;
    cursor: pointer;
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 1001;
  }

  .hamburger-menu .bar {
    display: block;
    width: 24px;
    height: 3px;
    background-color: var(--gold);
    border-radius: 3px;
    transition: all 0.3s ease;
  }

  .hamburger-menu.active .bar:nth-child(1) {
    transform: translateY(9px) rotate(45deg);
  }

  .hamburger-menu.active .bar:nth-child(2) {
    opacity: 0;
  }

  .hamburger-menu.active .bar:nth-child(3) {
    transform: translateY(-9px) rotate(-45deg);
  }

  .mobile-menu-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background-color: rgba(0,0,0,0.6);
    z-index: 1000;
  }

  .mobile-menu-overlay.active {
    display: block;
  }

  .mobile-actions {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 12px;
    padding: 8px 15px;
    background-color: var(--primary);
    width: 100%;
    min-height: 48px;
  }

  .mobile-actions .btn {
    padding: 6px 16px;
    font-size: 0.9rem;
    display: inline-block;
  }

  .mobile-actions .btn-register {
    background: var(--btn-gradient);
    color: #fff;
  }

  .mobile-actions .btn-login {
    background: transparent;
    color: #fff;
    border: 1px solid #fff;
  }

  .mobile-logo {
    display: none;
  }

  .footer-container {
    gap: 30px;
  }

  .footer-column {
    flex: 1 1 100%;
    min-width: 100%;
  }

  .footer-column ul {
    grid-template-columns: 1fr 1fr;
    gap: 8px;
  }

  .footer-nav {
    display: flex;
    flex-direction: column;
  }

  .footer-nav a {
    font-size: 0.9rem;
  }

  .footer-bottom {
    padding: 15px;
  }

  .page-content {
    max-width: 100%;
    overflow-x: hidden;
  }

  .page-content img {
    max-width: 100% !important;
    height: auto !important;
    display: block;
  }

  body {
    overflow-x: hidden;
  }
}

@media (min-width: 769px) {
  .main-nav {
    display: flex;
  }

  .mobile-actions {
    display: none;
  }

  .nav-container a {
    font-size: 0.95rem;
  }

  .footer-nav {
    display: flex;
  }
}


.page-content {
  max-width: 100%;
}

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

.site-footer {
  margin-top: auto;
}

main, .page-wrapper {
  min-height: auto;
}
/* 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;
  }
}
/* 内容保护（系统追加，请勿删除） */
body {
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}
input, textarea, select, [contenteditable="true"] {
  -webkit-user-select: text;
  -moz-user-select: text;
  user-select: text;
}