:root {
  --mc-bg-primary: #080c17;
  --mc-bg-secondary: #0c1224;
  --mc-accent: #ff6b6b;
  --mc-accent-hover: #ff8e8e;
  --mc-text-primary: #ffffff;
  --mc-text-secondary: rgba(255, 255, 255, 0.65);
  --mc-text-muted: rgba(255, 255, 255, 0.4);
  --mc-border: rgba(255, 255, 255, 0.08);
  --mc-card-bg: rgba(255, 255, 255, 0.03);
  --mc-font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  --mc-radius-sm: 8px;
  --mc-radius-md: 12px;
  --mc-radius-lg: 16px;
  --mc-radius-xl: 20px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body,
#astra-body,
.ast-plain-container {
  font-family: var(--mc-font-family) !important;
  background-color: var(--mc-bg-primary) !important;
  color: var(--mc-text-primary) !important;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.ast-header-wrap,
.site-header,
.ast-main-header-wrap,
.ast-footer-wrap,
.site-footer,
.ast-footer-overlay,
#astra-footer,
.ast-below-header-wrap,
.ast-above-header-wrap {
  display: none !important;
}

.mc-nav {
  position: sticky;
  top: 0;
  z-index: 1000;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  background: rgba(8, 12, 23, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--mc-border);
}

.mc-nav .mc-nav-logo {
  font-size: 20px;
  font-weight: 700;
  color: var(--mc-text-primary);
  text-decoration: none;
}

.mc-nav .mc-nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.mc-nav .mc-nav-links a {
  font-size: 14px;
  color: var(--mc-text-secondary);
  text-decoration: none;
  transition: color 0.3s ease;
}

.mc-nav .mc-nav-links a:hover {
  color: var(--mc-accent);
}

.mc-footer {
  text-align: center;
  padding: 40px 24px;
  color: var(--mc-text-muted);
  font-size: 14px;
  border-top: 1px solid var(--mc-border);
}

.mc-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.mc-card {
  background: var(--mc-card-bg);
  border: 1px solid var(--mc-border);
  border-radius: var(--mc-radius-md);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.mc-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.mc-section-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}

.mc-section-title h2 {
  position: relative;
  font-size: 24px;
  font-weight: 700;
  color: var(--mc-text-primary);
  margin: 0;
  padding-left: 16px;
}

.mc-section-title h2::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 20px;
  background: linear-gradient(180deg, var(--mc-accent), var(--mc-accent-hover));
  border-radius: 2px;
}

.mc-section-title .mc-section-more {
  font-size: 14px;
  color: var(--mc-text-muted);
  text-decoration: none;
  transition: color 0.3s ease;
}

.mc-section-title .mc-section-more:hover {
  color: var(--mc-accent);
}

.mc-breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--mc-text-muted);
  margin-bottom: 24px;
}

.mc-breadcrumb a {
  color: var(--mc-text-secondary);
  text-decoration: none;
  transition: color 0.3s ease;
}

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

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

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

.mc-backtop {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 999;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--mc-accent), var(--mc-accent-hover));
  border: none;
  border-radius: 50%;
  color: var(--mc-text-primary);
  font-size: 20px;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease, transform 0.3s ease;
  box-shadow: 0 4px 16px rgba(255, 107, 107, 0.3);
}

.mc-backtop.visible {
  opacity: 1;
  visibility: visible;
}

.mc-backtop:hover {
  transform: translateY(-4px);
}

.mc-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  font-size: 14px;
  font-weight: 500;
  font-family: inherit;
  color: var(--mc-text-primary);
  background: var(--mc-accent);
  border: none;
  border-radius: var(--mc-radius-sm);
  cursor: pointer;
  transition: background 0.3s ease, transform 0.3s ease;
  text-decoration: none;
}

.mc-btn:hover {
  background: var(--mc-accent-hover);
  transform: translateY(-2px);
}

.mc-btn-secondary {
  background: transparent;
  border: 1px solid var(--mc-border);
  color: var(--mc-text-secondary);
}

.mc-btn-secondary:hover {
  background: var(--mc-card-bg);
  border-color: var(--mc-accent);
  color: var(--mc-accent);
}

@media (max-width: 1024px) {
  .mc-container {
    padding: 0 20px;
  }

  .mc-nav {
    padding: 0 20px;
  }

  .mc-nav .mc-nav-links {
    gap: 24px;
  }

  .mc-section-title h2 {
    font-size: 22px;
  }
}

@media (max-width: 768px) {
  .mc-container {
    padding: 0 16px;
  }

  .mc-nav {
    padding: 0 16px;
    height: 56px;
  }

  .mc-nav .mc-nav-links {
    gap: 16px;
  }

  .mc-nav .mc-nav-links a {
    font-size: 13px;
  }

  .mc-section-title {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .mc-section-title h2 {
    font-size: 20px;
  }

  .mc-footer {
    padding: 32px 16px;
    font-size: 13px;
  }

  .mc-backtop {
    right: 16px;
    bottom: 16px;
    width: 44px;
    height: 44px;
    font-size: 18px;
  }

  .mc-btn {
    padding: 10px 20px;
    font-size: 13px;
  }
}