:root {
  --primary: #0A1F44;
  --primary-deep: #071632;
  --secondary-gold: #D4AF37;
  --accent-red: #E63946;
  --deep-blue-2: #1E3A5F;
  --glass-blue: rgba(255, 255, 255, 0.08);
  --cream-white: #F8F6F0;
  --ink-gray: #333333;
  --line-blue: #4A6FA5;
  --white: #FFFFFF;
  --max-width: 1440px;
  --content-width: 1200px;
  --font-display: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-body: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --header-h: 88px;
  --border-rule: 1px solid var(--line-blue);
  --shadow-card: 0 8px 24px rgba(0, 0, 0, 0.18);
  --transition: 300ms ease;
}
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}
body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.8;
  color: var(--ink-gray);
  background-color: var(--primary);
  -webkit-font-smoothing: antialiased;
}
img {
  max-width: 100%;
  display: block;
}
a {
  color: inherit;
  text-decoration: none;
}
a:focus-visible {
  outline: 3px solid var(--secondary-gold);
  outline-offset: 2px;
  border-radius: 2px;
}
button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}
ul, ol {
  list-style: none;
}
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 900;
  line-height: 1.25;
  color: var(--primary);
}
h1 {
  font-size: clamp(2rem, 5vw, 3.75rem);
}
h2 {
  font-size: clamp(1.5rem, 3vw, 2.25rem);
}
h3 {
  font-size: 1.2rem;
}
p {
  margin: 0.8em 0;
}
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}
.skip-link {
  position: fixed;
  top: -100px;
  left: 16px;
  z-index: 200;
  background: var(--secondary-gold);
  color: var(--primary);
  padding: 10px 20px;
  font-weight: 700;
  border-radius: 0 0 6px 6px;
  transition: top var(--transition);
}
.skip-link:focus-visible {
  top: 0;
}
.container, .container-wide {
  width: 100%;
  margin-inline: auto;
  padding-inline: 24px;
}
.container {
  max-width: var(--content-width);
}
.container-wide {
  max-width: var(--max-width);
}
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: linear-gradient(135deg, var(--primary) 0%, var(--deep-blue-2) 100%);
  border-bottom: 2px solid var(--secondary-gold);
  border-top: 2px solid var(--secondary-gold);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
}
.site-header::before, .site-header::after {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  width: 12px;
  pointer-events: none;
  opacity: 0.4;
  border-left: 2px solid var(--line-blue);
  border-right: 2px solid var(--line-blue);
}
.site-header::before {
  left: 0;
}
.site-header::after {
  right: 0;
}
.header-frame {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  min-height: var(--header-h);
  gap: 16px;
}
.brand-mark {
  display: inline-flex;
  flex-direction: column;
  line-height: 1.2;
  padding: 8px 0;
  position: relative;
}
.brand-name {
  font-family: var(--font-display);
  font-size: 1.65rem;
  font-weight: 900;
  color: var(--white);
  letter-spacing: 0.06em;
}
.brand-slogan {
  font-size: 0.7rem;
  font-weight: 400;
  color: var(--secondary-gold);
  letter-spacing: 0.12em;
  margin-top: 2px;
}
.primary-nav {
  flex: 1 1 auto;
  display: flex;
  justify-content: center;
}
.nav-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 4px;
}
.nav-list a {
  position: relative;
  display: block;
  padding: 10px 14px;
  color: rgba(255, 255, 255, 0.85);
  font-weight: 500;
  letter-spacing: 0.04em;
  transition: color var(--transition), background var(--transition);
}
.nav-list a::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 12px;
  right: 12px;
  height: 3px;
  background: var(--secondary-gold);
  transform: scaleX(0);
  transform-origin: 0 50%;
  transition: transform var(--transition);
}
.nav-list a:hover, .nav-list a:focus-visible {
  color: var(--white);
  background: rgba(255, 255, 255, 0.06);
}
.nav-list a:hover::after, .nav-list a:focus-visible::after {
  transform: scaleX(1);
}
.nav-list a[aria-current="page"] {
  color: var(--secondary-gold);
}
.nav-list a[aria-current="page"]::after {
  transform: scaleX(1);
}
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 44px;
  height: 44px;
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.06);
  transition: border-color var(--transition);
}
.nav-toggle-bar {
  display: block;
  width: 22px;
  height: 2px;
  margin: 3px 0;
  background: var(--white);
  transition: transform var(--transition), opacity var(--transition);
}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) {
  opacity: 0;
}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}
.header-utility {
  display: flex;
  align-items: center;
}
.utility-link {
  display: inline-block;
  padding: 8px 18px;
  border: 1px solid var(--secondary-gold);
  border-radius: 999px;
  color: var(--secondary-gold);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  transition: background var(--transition), color var(--transition);
}
.utility-link:hover, .utility-link:focus-visible {
  background: var(--secondary-gold);
  color: var(--primary);
}
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  z-index: 150;
  width: 0%;
  background: var(--secondary-gold);
  box-shadow: 0 0 8px rgba(212, 175, 55, 0.6);
}
.site-footer {
  background: linear-gradient(180deg, var(--primary-deep), var(--primary));
  color: rgba(255, 255, 255, 0.78);
  border-top: 3px solid var(--secondary-gold);
  padding-top: 48px;
  padding-bottom: 24px;
}
.footer-top {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.5fr;
  gap: 32px;
  padding-bottom: 32px;
  border-bottom: var(--border-rule);
}
.footer-title {
  font-size: 0.9rem;
  color: var(--secondary-gold);
  margin-bottom: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.footer-brand-name {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--white);
  letter-spacing: 0.05em;
}
.footer-note {
  font-size: 0.82rem;
  line-height: 1.6;
  margin-top: 8px;
  max-width: 22em;
}
.footer-column ul li {
  margin-bottom: 6px;
}
.footer-column a {
  color: rgba(255, 255, 255, 0.8);
  transition: color var(--transition);
}
.footer-column a:hover, .footer-column a:focus-visible {
  color: var(--secondary-gold);
}
.footer-bottom {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  padding-top: 20px;
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.6);
}
.btn {
  display: inline-block;
  padding: 12px 28px;
  border-radius: 4px;
  font-weight: 700;
  font-size: 0.95rem;
  line-height: 1;
  text-align: center;
  transition: background var(--transition), color var(--transition), border-color var(--transition), transform var(--transition);
}
.btn-gold {
  background: var(--secondary-gold);
  color: var(--primary);
  border: 2px solid var(--secondary-gold);
}
.btn-gold:hover, .btn-gold:focus-visible {
  background: transparent;
  color: var(--secondary-gold);
}
.btn-outline {
  border: 2px solid var(--line-blue);
  color: var(--primary);
  background: transparent;
}
.btn-outline:hover, .btn-outline:focus-visible {
  border-color: var(--secondary-gold);
  color: var(--secondary-gold);
}
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  font-size: 0.85rem;
  padding: 16px 0;
  color: var(--line-blue);
}
.breadcrumb li + li::before {
  content: "●";
  margin-right: 6px;
  font-size: 0.5em;
  color: var(--secondary-gold);
  vertical-align: middle;
}
.breadcrumb a {
  color: var(--primary);
  font-weight: 500;
}
.breadcrumb a:hover, .breadcrumb a:focus-visible {
  color: var(--secondary-gold);
}
.breadcrumb [aria-current="page"] {
  color: var(--ink-gray);
  font-weight: 600;
  text-decoration: none;
}
.section {
  padding: clamp(48px, 6vw, 80px) 0;
  position: relative;
}
.section[data-section-title] {
  border-top: 1px solid var(--line-blue);
}
.card {
  background: var(--white);
  border: 1px solid rgba(10, 31, 68, 0.12);
  border-radius: 4px;
  padding: 24px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
  transition: box-shadow var(--transition), transform var(--transition);
}
.card:hover, .card:focus-within {
  box-shadow: var(--shadow-card);
  transform: translateY(-2px);
}
.glass-card {
  background: var(--glass-blue);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 6px;
  padding: 24px;
  color: var(--white);
}
.glass-card h2, .glass-card h3 {
  color: var(--white);
}
.stat {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2.5rem, 8vw, 6rem);
  line-height: 1;
  color: var(--secondary-gold);
  padding: 8px 0;
  display: inline-block;
}
.category-tag {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  padding: 4px 10px;
  background: var(--accent-red);
  color: var(--white);
  border-radius: 2px;
  text-transform: uppercase;
}
.tag-gold {
  background: var(--secondary-gold);
  color: var(--primary);
}
[data-reveal] {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
[data-reveal].is-visible {
  opacity: 1;
  transform: none;
}
:focus-visible {
  outline: 3px solid var(--secondary-gold);
  outline-offset: 2px;
}
@media (max-width: 1024px) {
  .footer-top {
    grid-template-columns: 1fr 1fr;
  }
}
@media (max-width: 768px) {
  .container, .container-wide {
    padding-inline: 16px;
  }
  .site-header::before, .site-header::after {
    width: 6px;
  }
  .header-frame {
    flex-wrap: nowrap;
  }
  .primary-nav {
    order: 3;
    width: 100%;
    flex-basis: 100%;
    justify-content: center;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease;
  }
  .primary-nav[data-open] {
    max-height: 400px;
    border-top: 1px solid rgba(255, 255, 255, 0.12);
    margin-top: 12px;
  }
  .nav-list {
    flex-direction: column;
    text-align: center;
    padding: 8px 0 12px;
    gap: 0;
  }
  .nav-list a {
    padding: 14px 16px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  }
  .nav-list a::after {
    left: 50%;
    right: 50%;
    transform: scaleX(0);
  }
  .nav-list a[aria-current="page"]::after {
    left: 20%;
    right: 20%;
    transform: scaleX(1);
  }
  .nav-toggle {
    display: flex;
    order: 2;
  }
  .header-utility {
    order: 1;
  }
  .utility-link {
    font-size: 0.75rem;
    padding: 6px 12px;
  }
  .footer-top {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .footer-bottom {
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 4px;
  }
}
@media (max-width: 480px) {
  .brand-name {
    font-size: 1.3rem;
  }
  .brand-slogan {
    font-size: 0.62rem;
  }
  .header-utility .utility-link {
    font-size: 0.72rem;
  }
}
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  [data-reveal] {
    opacity: 1;
    transform: none;
  }
}