*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}
body {
  background: #0d0d0d;
  background-image:
    linear-gradient(135deg, rgba(255,111,0,0.03) 0%, transparent 50%),
    repeating-linear-gradient(45deg, transparent, transparent 40px, rgba(255,214,0,0.02) 40px, rgba(255,214,0,0.02) 41px);
  color: #ffffff;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Noto Sans SC", "Microsoft YaHei", sans-serif;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}
:root {
  --color-primary: #ff6f00;
  --color-primary-hover: #ff8c22;
  --color-secondary: #1a237e;
  --color-accent: #ffd600;
  --color-background: #0d0d0d;
  --color-surface: #1a1a2e;
  --color-text-primary: #ffffff;
  --color-text-secondary: #b0bec5;
  --color-error: #ff5252;
  --color-success: #69f0ae;
  --color-border: #ffd600;
  --color-neon-glow: rgba(255,111,0,0.35);
  --font-heading: "Impact", "Arial Black", "Franklin Gothic Bold", sans-serif;
  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Noto Sans SC", "Microsoft YaHei", sans-serif;
  --nav-width: 250px;
  --transition-speed: 0.3s;
  --border-radius-panel: 4px;
}
::selection {
  background: var(--color-primary);
  color: #fff;
}
:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  html {
    scroll-behavior: auto;
  }
}
.skip-link {
  position: fixed;
  top: -999px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1000;
  background: var(--color-primary);
  color: #fff;
  padding: 12px 24px;
  font-weight: 700;
  text-decoration: none;
  border-radius: 0 0 6px 6px;
  font-size: 0.95rem;
  box-shadow: 0 0 20px var(--color-neon-glow);
}
.skip-link:focus {
  top: 0;
}
.progress-bar-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  z-index: 999;
  background: rgba(255,255,255,0.08);
}
.progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  width: 0%;
  transition: width 0.1s linear;
  box-shadow: 0 0 12px var(--color-neon-glow);
}
@media (prefers-reduced-motion: reduce) {
  .progress-bar {
    transition: none;
  }
}
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: var(--nav-width);
  height: 100vh;
  z-index: 100;
  background: var(--color-secondary);
  background-image:
    linear-gradient(180deg, rgba(26,35,126,0.95) 0%, rgba(13,13,13,0.98) 100%),
    repeating-linear-gradient(0deg, transparent, transparent 30px, rgba(255,214,0,0.03) 30px, rgba(255,214,0,0.03) 31px);
  border-right: 1px solid rgba(255,214,0,0.2);
  box-shadow: 4px 0 30px rgba(0,0,0,0.6);
  display: flex;
  flex-direction: column;
}
.site-nav {
  display: flex;
  flex-direction: column;
  height: 100%;
  padding: 0;
  overflow-y: auto;
}
.site-nav-brand {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 28px 20px 20px;
  border-bottom: 1px solid rgba(255,214,0,0.12);
}
.site-logo {
  font-family: var(--font-heading);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--color-primary);
  text-decoration: none;
  text-shadow: 0 0 20px var(--color-neon-glow), 0 0 60px rgba(255,111,0,0.15);
  letter-spacing: 1px;
  line-height: 1.2;
}
.logo-accent {
  display: block;
  font-size: 0.7rem;
  color: var(--color-accent);
  text-shadow: 0 0 12px rgba(255,214,0,0.3);
  font-family: var(--font-body);
  font-weight: 400;
  letter-spacing: 2px;
  margin-top: 2px;
}
.nav-toggle-close {
  display: none;
  background: none;
  border: 1px solid rgba(255,214,0,0.25);
  color: var(--color-accent);
  font-size: 1.3rem;
  width: 36px;
  height: 36px;
  border-radius: 4px;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-speed);
}
.nav-toggle-close:hover {
  background: rgba(255,214,0,0.1);
  border-color: var(--color-accent);
}
.nav-list {
  list-style: none;
  padding: 16px 0;
  flex: 1;
}
.nav-item {
  margin: 0;
}
.nav-link {
  display: block;
  padding: 12px 24px;
  color: var(--color-text-secondary);
  text-decoration: none;
  font-size: 1rem;
  font-weight: 500;
  border-left: 3px solid transparent;
  transition: all var(--transition-speed);
  position: relative;
  letter-spacing: 0.5px;
}
.nav-link:hover {
  color: var(--color-primary);
  background: rgba(255,111,0,0.06);
  border-left-color: var(--color-primary);
  text-shadow: 0 0 8px rgba(255,111,0,0.2);
}
.nav-link[aria-current="page"] {
  color: var(--color-primary);
  background: rgba(255,111,0,0.08);
  border-left-color: var(--color-primary);
  font-weight: 700;
  text-shadow: 0 0 12px var(--color-neon-glow);
}
.nav-link[aria-current="page"]::after {
  content: "";
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-primary);
  box-shadow: 0 0 12px var(--color-primary);
}
.nav-update-badge {
  padding: 16px 20px;
  margin: 12px 16px 20px;
  border: 1px solid rgba(255,214,0,0.15);
  border-radius: var(--border-radius-panel);
  background: rgba(255,214,0,0.04);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 6px), calc(100% - 6px) 100%, 0 100%);
}
.badge-text {
  display: block;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 4px;
  text-shadow: 0 0 8px rgba(255,214,0,0.2);
}
.badge-countdown {
  display: block;
  font-size: 0.75rem;
  color: var(--color-text-secondary);
  font-family: var(--font-body);
}
.nav-toggle {
  display: none;
  position: fixed;
  top: 16px;
  left: 16px;
  z-index: 110;
  width: 44px;
  height: 44px;
  background: var(--color-surface);
  border: 1px solid rgba(255,214,0,0.2);
  border-radius: 6px;
  cursor: pointer;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  padding: 10px;
  box-shadow: 0 0 20px rgba(0,0,0,0.5);
  transition: all var(--transition-speed);
}
.nav-toggle:hover {
  border-color: var(--color-primary);
  box-shadow: 0 0 20px var(--color-neon-glow);
}
.hamburger-line {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-primary);
  border-radius: 2px;
  transition: all var(--transition-speed);
}
.site-footer {
  background: var(--color-surface);
  background-image:
    linear-gradient(180deg, rgba(26,26,46,0.98) 0%, rgba(13,13,13,0.99) 100%),
    repeating-linear-gradient(-45deg, transparent, transparent 45px, rgba(255,214,0,0.015) 45px, rgba(255,214,0,0.015) 46px);
  border-top: 1px solid rgba(255,214,0,0.1);
  padding: 48px 24px 24px;
  margin-left: var(--nav-width);
}
.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px 48px;
}
.footer-section {
  display: flex;
  flex-direction: column;
}
.footer-brand {
  gap: 12px;
}
.footer-logo {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--color-primary);
  text-decoration: none;
  text-shadow: 0 0 16px var(--color-neon-glow);
  line-height: 1.2;
}
.footer-logo .logo-accent {
  display: inline;
  font-size: 0.65rem;
  margin-left: 4px;
}
.footer-tagline {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
  max-width: 360px;
}
.footer-trust {
  font-size: 0.8rem;
  color: var(--color-accent);
  opacity: 0.7;
  border-left: 2px solid var(--color-accent);
  padding-left: 12px;
  margin-top: 4px;
}
.footer-heading {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  color: var(--color-primary);
  margin-bottom: 16px;
  letter-spacing: 1px;
  text-transform: uppercase;
  text-shadow: 0 0 8px rgba(255,111,0,0.15);
}
.footer-link-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-link-list a {
  color: var(--color-text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color var(--transition-speed);
  position: relative;
  padding-left: 0;
}
.footer-link-list a:hover {
  color: var(--color-primary);
  text-shadow: 0 0 8px rgba(255,111,0,0.2);
  padding-left: 4px;
}
.footer-contact-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.footer-contact-list li {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  line-height: 1.5;
}
.footer-contact-list a {
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: color var(--transition-speed);
}
.footer-contact-list a:hover {
  color: var(--color-primary);
  text-shadow: 0 0 8px rgba(255,111,0,0.15);
}
.footer-legal {
  grid-column: 1 / -1;
  padding-top: 24px;
  border-top: 1px solid rgba(255,214,0,0.08);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  font-size: 0.8rem;
  color: var(--color-text-secondary);
  opacity: 0.7;
}
.footer-icp {
  font-weight: 500;
}
.footer-copyright {
  font-weight: 400;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 28px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 600;
  border: 2px solid transparent;
  border-radius: var(--border-radius-panel);
  cursor: pointer;
  text-decoration: none;
  transition: all var(--transition-speed);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 6px), calc(100% - 6px) 100%, 0 100%);
  line-height: 1.4;
}
.btn-primary {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
  box-shadow: 0 0 12px var(--color-neon-glow);
}
.btn-primary:hover {
  background: var(--color-primary-hover);
  border-color: var(--color-accent);
  box-shadow: 0 0 30px var(--color-neon-glow), inset 0 0 20px rgba(255,214,0,0.1);
  transform: translateY(-1px);
}
.btn-secondary {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.btn-secondary:hover {
  background: rgba(255,111,0,0.08);
  border-color: var(--color-accent);
  box-shadow: 0 0 20px var(--color-neon-glow);
}
.panel {
  background: var(--color-surface);
  border: 1px solid rgba(255,214,0,0.1);
  border-radius: var(--border-radius-panel);
  padding: 24px;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 8px), calc(100% - 8px) 100%, 0 100%);
  transition: all var(--transition-speed);
  position: relative;
}
.panel:hover {
  border-color: rgba(255,111,0,0.3);
  box-shadow: 0 0 24px rgba(255,111,0,0.06), inset 0 0 24px rgba(255,111,0,0.02);
  transform: translateY(-2px);
}
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 10px;
  padding: 12px 0;
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  list-style: none;
}
.breadcrumb a {
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: color var(--transition-speed);
}
.breadcrumb a:hover {
  color: var(--color-primary);
}
.breadcrumb .current {
  color: var(--color-primary);
  font-weight: 600;
}
.breadcrumb li + li::before {
  content: "/";
  color: rgba(255,214,0,0.3);
  margin-right: 6px;
}
.content-container {
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
  padding: 0 24px;
}
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}
.grid-item {
  min-width: 0;
}
.num-highlight {
  color: var(--color-primary);
  font-weight: 700;
  text-shadow: 0 0 16px var(--color-neon-glow), 0 0 40px rgba(255,111,0,0.1);
  font-family: var(--font-heading);
  font-size: 1.2em;
}
@media (max-width: 1024px) {
  .footer-inner {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
  .footer-legal {
    grid-column: 1 / -1;
  }
}
@media (max-width: 768px) {
  .site-header {
    width: 0;
    border-right: none;
    box-shadow: none;
    background: transparent;
  }
  .site-nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 280px;
    height: 100vh;
    background: var(--color-secondary);
    background-image:
      linear-gradient(180deg, rgba(26,35,126,0.98) 0%, rgba(13,13,13,0.99) 100%),
      repeating-linear-gradient(0deg, transparent, transparent 30px, rgba(255,214,0,0.025) 30px, rgba(255,214,0,0.025) 31px);
    border-right: 1px solid rgba(255,214,0,0.2);
    box-shadow: 4px 0 40px rgba(0,0,0,0.7);
    transform: translateX(-100%);
    transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 120;
    overflow-y: auto;
  }
  .site-nav[data-open] {
    transform: translateX(0);
  }
  .site-nav-brand {
    padding: 20px 16px 16px;
  }
  .nav-toggle-close {
    display: flex;
  }
  .nav-toggle {
    display: flex;
  }
  .nav-list {
    padding: 8px 0;
  }
  .nav-link {
    padding: 14px 20px;
    font-size: 1.05rem;
  }
  .nav-update-badge {
    margin: 8px 12px 16px;
    padding: 12px 16px;
  }
  .site-footer {
    margin-left: 0;
    padding: 36px 16px 20px;
  }
  .footer-inner {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .footer-legal {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }
  .content-container {
    padding: 0 16px;
  }
  .grid {
    grid-template-columns: 1fr;
  }
}
@media (max-width: 480px) {
  .site-nav {
    width: 100%;
  }
  .footer-logo {
    font-size: 1.2rem;
  }
  .btn {
    padding: 8px 20px;
    font-size: 0.9rem;
  }
}
@media (min-width: 769px) {
  .nav-toggle {
    display: none !important;
  }
  .nav-toggle-close {
    display: none !important;
  }
}