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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

:root {
  --c-deep-navy: #0A1A2F;
  --c-royal-blue: #162A4A;
  --c-gold: #D4AF37;
  --c-light-gold: #F0D060;
  --c-neon-purple: #9B5CFF;
  --c-cyan: #00E5FF;
  --c-off-white: #F5F7FA;
  --c-slate-gray: #A0AEC0;
  --c-dark-end: #0B1B3A;
  --font-headline: 'Orbitron', 'Noto Sans SC', sans-serif;
  --font-body: 'Noto Sans SC', 'Microsoft YaHei', sans-serif;
  --r-lg: 20px;
  --r-md: 14px;
  --r-pill: 999px;
  --tr-fast: 0.3s ease;
  --tr-slow: 0.5s ease-in-out;
  --shadow-card: 0 8px 24px rgba(0, 0, 0, 0.25);
}

body {
  background: var(--c-deep-navy);
  color: var(--c-off-white);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
  min-height: 100vh;
  padding-left: 80px;
  -webkit-font-smoothing: antialiased;
}

img,
svg,
video {
  max-width: 100%;
  display: block;
}

a {
  color: var(--c-neon-purple);
  text-decoration: none;
}

a:hover {
  color: var(--c-light-gold);
}

:focus-visible {
  outline: 2px solid var(--c-gold);
  outline-offset: 4px;
  border-radius: 4px;
}

.skip-link {
  position: fixed;
  left: 50%;
  top: -48px;
  transform: translateX(-50%);
  z-index: 200;
  background: var(--c-gold);
  color: var(--c-deep-navy);
  padding: 12px 24px;
  border-radius: 0 0 14px 14px;
  text-decoration: none;
  font-weight: 700;
  font-size: 14px;
  transition: top 0.3s ease;
}

.skip-link:focus {
  top: 0;
}

.scroll-progress {
  position: fixed;
  top: 0;
  left: 80px;
  right: 0;
  height: 3px;
  z-index: 160;
  background: linear-gradient(90deg, var(--c-gold), var(--c-cyan), var(--c-neon-purple));
  transform: scaleX(0);
  transform-origin: 0 50%;
  pointer-events: none;
}

.brand-rail {
  position: fixed;
  top: 0;
  left: 0;
  width: 80px;
  height: 100vh;
  z-index: 150;
  background: linear-gradient(180deg, var(--c-royal-blue), var(--c-deep-navy));
  border-right: 1px solid rgba(212, 175, 55, 0.15);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  padding: 24px 0;
}

.rail-brand {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  text-decoration: none;
}

.rail-brand-symbol {
  font-family: var(--font-headline);
  font-weight: 700;
  font-size: 20px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--c-gold), var(--c-light-gold));
  color: var(--c-deep-navy);
  display: flex;
  align-items: center;
  justify-content: center;
  letter-spacing: 0.02em;
  box-shadow: 0 4px 16px rgba(212, 175, 55, 0.35);
}

.rail-brand-cn {
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--c-slate-gray);
  writing-mode: vertical-rl;
}

.rail-score {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  font-size: 8px;
  letter-spacing: 0.25em;
  color: var(--c-slate-gray);
  text-transform: uppercase;
}

.rail-score-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--c-cyan);
  box-shadow: 0 0 10px rgba(0, 229, 255, 0.8);
}

.rail-score-text {
  writing-mode: vertical-rl;
}

.site-header {
  position: relative;
  background: linear-gradient(180deg, rgba(10, 26, 47, 0.95), rgba(11, 27, 58, 0.8));
  border-bottom: 1px solid rgba(212, 175, 55, 0.12);
}

.header-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 32px;
}

.header-masthead {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 32px 24px 16px;
  text-align: center;
}

.masthead-brand {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  text-decoration: none;
}

.masthead-brand-name {
  font-family: var(--font-headline);
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: 0.06em;
  color: var(--c-off-white);
}

@supports (-webkit-background-clip: text) or (background-clip: text) {
  .masthead-brand-name {
    background: linear-gradient(135deg, #F5F7FA, #D4AF37);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
  }
}

.masthead-brand-tagline {
  margin-top: 6px;
  font-size: 12px;
  color: var(--c-slate-gray);
  letter-spacing: 0.32em;
  text-transform: uppercase;
}

.nav-toggle {
  display: none;
  align-items: center;
  gap: 8px;
  background: transparent;
  border: 1px solid rgba(212, 175, 55, 0.4);
  border-radius: var(--r-pill);
  color: var(--c-off-white);
  padding: 8px 14px;
  cursor: pointer;
  font-family: var(--font-body);
  font-size: 13px;
  transition: border-color 0.3s ease, background 0.3s ease;
}

.nav-toggle:hover {
  background: rgba(212, 175, 55, 0.08);
}

.nav-toggle-bars {
  display: inline-flex;
  flex-direction: column;
  gap: 4px;
}

.nav-toggle-bar {
  width: 22px;
  height: 2px;
  background: var(--c-off-white);
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.nav-toggle.is-active .nav-toggle-bar:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.nav-toggle.is-active .nav-toggle-bar:nth-child(2) {
  opacity: 0;
}

.nav-toggle.is-active .nav-toggle-bar:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

.nav-toggle-label {
  letter-spacing: 0.08em;
}

.primary-nav {
  display: flex;
  align-items: center;
  gap: 16px;
  border-top: 1px solid rgba(212, 175, 55, 0.18);
  border-bottom: 1px solid rgba(212, 175, 55, 0.18);
  padding: 4px 0;
}

.nav-list {
  flex: 1;
  display: flex;
  justify-content: center;
  gap: 2px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-link {
  position: relative;
  display: inline-block;
  padding: 14px 16px;
  color: var(--c-off-white);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-decoration: none;
  transition: color 0.3s ease;
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 8px;
  height: 2px;
  background: linear-gradient(90deg, var(--c-gold), var(--c-neon-purple));
  transform: scaleX(0);
  transform-origin: 0 50%;
  transition: transform 0.5s ease-in-out;
}

.nav-link:hover,
.nav-link[aria-current="page"] {
  color: var(--c-gold);
}

.nav-link:hover::after,
.nav-link:focus-visible::after,
.nav-link[aria-current="page"]::after {
  transform: scaleX(1);
}

.header-cta {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: var(--r-pill);
  background: linear-gradient(135deg, var(--c-gold), var(--c-light-gold));
  color: var(--c-deep-navy);
  font-weight: 700;
  font-size: 14px;
  text-decoration: none;
  line-height: 1.4;
  box-shadow: 0 4px 16px rgba(212, 175, 55, 0.3);
  transition: transform var(--tr-slow), box-shadow var(--tr-slow);
}

.header-cta:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(212, 175, 55, 0.45);
  color: var(--c-deep-navy);
}

.cta-glow {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--c-neon-purple);
  box-shadow: 0 0 8px rgba(155, 92, 255, 0.8);
}

.site-footer {
  background: linear-gradient(180deg, var(--c-deep-navy), var(--c-dark-end));
  border-top: 1px solid rgba(212, 175, 55, 0.15);
  padding: 56px 24px 24px;
}

.footer-top {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr 1.5fr;
  gap: 32px;
}

.footer-brand-block {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-brand {
  font-family: var(--font-headline);
  font-size: 28px;
  font-weight: 700;
  color: var(--c-gold);
  text-decoration: none;
  letter-spacing: 0.04em;
  line-height: 1.3;
}

.footer-brand:hover {
  color: var(--c-light-gold);
}

.footer-tagline {
  font-size: 13px;
  color: var(--c-slate-gray);
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.footer-trust {
  font-size: 14px;
  color: var(--c-slate-gray);
  max-width: 34em;
  line-height: 1.9;
}

.footer-link-group {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-heading {
  font-family: var(--font-headline);
  font-size: 14px;
  font-weight: 700;
  color: var(--c-off-white);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin: 0;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin: 0;
  padding: 0;
}

.footer-links a {
  color: var(--c-slate-gray);
  font-size: 14px;
  text-decoration: none;
  transition: color 0.3s ease, padding-left 0.3s ease;
}

.footer-links a:hover {
  color: var(--c-gold);
  padding-left: 4px;
}

.footer-contact-block {
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-size: 14px;
  color: var(--c-slate-gray);
}

.footer-contact-block p {
  margin: 0;
  line-height: 1.7;
}

.footer-phone {
  font-family: var(--font-headline);
  color: var(--c-cyan);
}

.footer-contact-note {
  font-size: 13px;
  border-left: 2px solid var(--c-gold);
  padding-left: 12px;
  color: var(--c-slate-gray);
}

.footer-bottom {
  max-width: 1200px;
  margin: 40px auto 0;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 16px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  font-size: 13px;
  color: var(--c-slate-gray);
}

.footer-copyright {
  white-space: nowrap;
}

.footer-icp {
  color: var(--c-slate-gray);
  letter-spacing: 0.04em;
}

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

.container-narrow {
  max-width: 880px;
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 64px 24px;
}

.section:first-child {
  padding-top: 48px;
}

.section-kicker {
  font-size: 12px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--c-cyan);
  margin-bottom: 4px;
}

.section-title {
  font-family: var(--font-headline);
  font-size: 36px;
  line-height: 1.2;
  color: var(--c-off-white);
  margin: 0 0 16px;
}

.grid-12 {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 24px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--r-pill);
  border: 1px solid transparent;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 500;
  line-height: 1.6;
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.5s ease-in-out, box-shadow 0.3s ease, background 0.3s ease, color 0.3s ease;
}

.btn-gold {
  background: linear-gradient(135deg, var(--c-gold), var(--c-light-gold));
  color: var(--c-deep-navy);
  box-shadow: 0 4px 16px rgba(212, 175, 55, 0.25);
}

.btn-gold:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(212, 175, 55, 0.4);
  color: var(--c-deep-navy);
}

.btn-outline {
  border-color: rgba(212, 175, 55, 0.6);
  color: var(--c-gold);
  background: transparent;
}

.btn-outline:hover {
  background: rgba(212, 175, 55, 0.08);
  transform: translateY(-4px);
  color: var(--c-gold);
}

.btn-cyan {
  background: linear-gradient(135deg, var(--c-cyan), #0096FF);
  color: var(--c-deep-navy);
  box-shadow: 0 4px 16px rgba(0, 229, 255, 0.25);
}

.btn-cyan:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0, 229, 255, 0.35);
  color: var(--c-deep-navy);
}

.btn-purple {
  background: linear-gradient(135deg, var(--c-neon-purple), #7C3AED);
  color: #FFFFFF;
  box-shadow: 0 4px 16px rgba(155, 92, 255, 0.25);
}

.btn-purple:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(155, 92, 255, 0.35);
  color: #FFFFFF;
}

.card {
  background: linear-gradient(145deg, rgba(22, 42, 74, 0.9), rgba(11, 27, 58, 0.9));
  border-radius: var(--r-lg);
  padding: 24px;
  border: 1px solid rgba(212, 175, 55, 0.15);
  box-shadow: var(--shadow-card);
  transition: transform 0.5s ease-in-out, box-shadow 0.5s ease-in-out;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 32px rgba(0, 0, 0, 0.4);
}

.card-glass {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--r-lg);
  padding: 24px;
  backdrop-filter: blur(12px);
}

.card-stack {
  display: grid;
  gap: 16px;
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: var(--r-pill);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.04em;
  border: 1px solid transparent;
}

.tag-gold {
  border-color: rgba(212, 175, 55, 0.5);
  color: var(--c-gold);
}

.tag-cyan {
  border-color: rgba(0, 229, 255, 0.4);
  color: var(--c-cyan);
}

.tag-purple {
  border-color: rgba(155, 92, 255, 0.5);
  color: var(--c-neon-purple);
}

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

.breadcrumbs-list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  font-size: 13px;
}

.breadcrumbs-item a {
  color: var(--c-slate-gray);
  text-decoration: none;
}

.breadcrumbs-item a:hover {
  color: var(--c-gold);
}

.breadcrumbs-item + .breadcrumbs-item::before {
  content: "›";
  margin-right: 8px;
  color: rgba(212, 175, 55, 0.6);
}

.image-frame {
  position: relative;
  border-radius: var(--r-lg);
  overflow: hidden;
  background: linear-gradient(135deg, var(--c-royal-blue), var(--c-dark-end));
  box-shadow: var(--shadow-card);
  aspect-ratio: 16 / 9;
}

.image-frame::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 30% 20%, rgba(0, 229, 255, 0.15), transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(155, 92, 255, 0.15), transparent 50%);
}

.image-frame img {
  position: relative;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.image-frame--wide {
  aspect-ratio: 16 / 9;
}

.image-frame--square {
  aspect-ratio: 1 / 1;
}

.divider {
  border: none;
  height: 1px;
  background: linear-gradient(90deg, rgba(212, 175, 55, 0.1), rgba(212, 175, 55, 0.6), rgba(155, 92, 255, 0.4), rgba(0, 229, 255, 0.2));
  border-radius: 2px;
  margin: 24px 0;
}

.divider--slant {
  height: 24px;
  background: linear-gradient(115deg, transparent 35%, var(--c-gold) 35%, var(--c-neon-purple) 55%, transparent 55%);
  opacity: 0.5;
  border: 0;
  margin: 24px 0;
}

.stat {
  border-radius: var(--r-lg);
  background: rgba(22, 42, 74, 0.8);
  border: 1px solid rgba(212, 175, 55, 0.2);
  padding: 24px;
  text-align: center;
}

.stat-value {
  font-family: var(--font-headline);
  font-size: 40px;
  color: var(--c-gold);
  display: block;
  line-height: 1.3;
}

.stat-label {
  font-size: 13px;
  color: var(--c-slate-gray);
  letter-spacing: 0.1em;
}

.text-gradient {
  background: linear-gradient(90deg, var(--c-gold), var(--c-light-gold));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: var(--c-gold);
}

.main-content {
  min-height: 60vh;
}

[data-reveal] {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.6s ease-in-out, transform 0.6s ease-in-out;
}

[data-reveal].is-revealed {
  opacity: 1;
  transform: translateY(0);
}

@media (min-width: 768px) and (max-width: 1023px) {
  .footer-top {
    grid-template-columns: repeat(2, 1fr);
    gap: 40px 32px;
  }

  .footer-brand-block {
    grid-column: 1 / -1;
  }
}

@media (max-width: 767px) {
  body {
    padding-left: 0;
  }

  .scroll-progress {
    left: 0;
  }

  .brand-rail {
    position: relative;
    width: 100%;
    height: 48px;
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
    padding: 0 16px;
    border-right: 0;
    border-bottom: 1px solid rgba(212, 175, 55, 0.15);
  }

  .rail-brand {
    flex-direction: row;
    gap: 8px;
  }

  .rail-brand-symbol {
    width: 32px;
    height: 32px;
    font-size: 15px;
  }

  .rail-brand-cn {
    writing-mode: horizontal-tb;
    font-size: 13px;
    color: var(--c-off-white);
    letter-spacing: 0.1em;
  }

  .rail-score {
    display: none;
  }

  .header-container {
    padding: 0 16px;
  }

  .header-masthead {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
    padding: 12px 0;
    text-align: left;
  }

  .masthead-brand {
    flex-direction: row;
    align-items: center;
    gap: 10px;
  }

  .masthead-brand-name {
    font-size: 20px;
  }

  .masthead-brand-tagline {
    display: none;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .primary-nav {
    display: none;
    flex-direction: column;
    align-items: stretch;
    border: 0;
    padding: 8px 0 16px;
  }

  .primary-nav[data-open] {
    display: flex;
  }

  .nav-list {
    flex-direction: column;
    width: 100%;
  }

  .nav-link {
    display: block;
    width: 100%;
    padding: 12px 8px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  }

  .header-cta {
    width: 100%;
    justify-content: center;
    margin-top: 12px;
  }

  .footer-top {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
    gap: 6px;
    margin-top: 32px;
  }

  .section {
    padding: 40px 16px;
  }

  .container {
    padding: 0 16px;
  }

  .container-narrow {
    padding: 0 16px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .nav-link::after {
    transform: none;
    opacity: 0.4;
  }

  .header-cta:hover,
  .btn:hover,
  .card:hover {
    transform: none;
  }

  [data-reveal] {
    opacity: 1;
    transform: none;
  }
}