:root {
  --c-bg: #0A1F44;
  --c-bg-alt: #06142B;
  --c-bg-soft: #123C69;
  --c-glass: rgba(255,255,255,0.08);
  --c-primary: #FF6B35;
  --c-accent: #00D4AA;
  --c-text: #E5E7EB;
  --c-muted: #9CA3AF;
  --c-white: #FFFFFF;
  --c-danger: #DC2626;
  --font-headline: Impact, "Anton", "Arial Black", "PingFang SC", sans-serif;
  --font-body: "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  --max-width: 1400px;
  --radius: 6px;
  --space: 1.5rem;
}

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

html {
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background-color: var(--c-bg);
  background-image:
    linear-gradient(rgba(255,255,255,0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.035) 1px, transparent 1px);
  background-size: 32px 32px;
  color: var(--c-text);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

#main-content {
  flex: 1 0 auto;
}

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

button, input, select, textarea {
  font: inherit;
}

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

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

a:focus-visible,
button:focus-visible {
  outline: 3px solid var(--c-primary);
  outline-offset: 3px;
}

.skip-link {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 1000;
  padding: 0.75rem 1.5rem;
  background: var(--c-primary);
  color: var(--c-bg);
  font-weight: 700;
  transform: translateY(-150%);
  transition: transform 0.2s;
}

.skip-link:focus {
  transform: translateY(0);
}

.container {
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: clamp(1rem, 4vw, 2.5rem);
}

.container--narrow {
  max-width: 960px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 31, 68, 0.94);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
  border-bottom: 1px solid rgba(0, 212, 170, 0.25);
}

.site-header::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--c-accent) 0%, var(--c-primary) 55%, var(--c-accent) 100%);
  pointer-events: none;
}

.site-header__meta {
  max-width: var(--max-width);
  margin-inline: auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 0.25rem 1.5rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--c-muted);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.site-header__meta-item {
  white-space: nowrap;
}

.site-header__inner {
  max-width: var(--max-width);
  margin-inline: auto;
  padding: 0.75rem 1.5rem 0;
  text-align: center;
}

.site-header__brand {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 0.25rem;
  margin-bottom: 0.5rem;
  color: var(--c-white);
  text-decoration: none;
}

.site-header__logo {
  font-family: var(--font-headline);
  font-size: 2.4rem;
  line-height: 1;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.site-header__logo-y {
  color: var(--c-white);
}

.site-header__logo-n {
  color: var(--c-primary);
}

.site-header__tagline {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--c-muted);
}

.site-nav {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.site-nav__labels {
  display: flex;
  justify-content: center;
  gap: 2.25rem;
  padding: 0.7rem 0;
}

.site-nav__link {
  position: relative;
  display: inline-block;
  padding: 0.4rem 0;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--c-text);
  text-decoration: none;
}

.site-nav__link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: var(--c-primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.25s ease;
}

.site-nav__link:hover,
.site-nav__link[aria-current="page"] {
  color: var(--c-primary);
}

.site-nav__link:hover::after,
.site-nav__link[aria-current="page"]::after {
  transform: scaleX(1);
}

.site-nav__link[aria-current="page"] {
  color: var(--c-primary);
}

.nav-toggle {
  display: none;
  border: none;
  cursor: pointer;
  background: var(--c-primary);
}

.nav-toggle__line {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--c-white);
  border-radius: 2px;
  transition: transform 0.3s, opacity 0.3s;
}

.site-progress {
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0%;
  height: 3px;
  z-index: 10;
  background: linear-gradient(90deg, var(--c-accent), var(--c-primary));
  pointer-events: none;
}

.scroll-top {
  position: fixed;
  right: 1.5rem;
  bottom: 1.5rem;
  width: 44px;
  height: 44px;
  border: none;
  border-radius: 8px;
  background: var(--c-accent);
  color: var(--c-bg);
  font-size: 1.5rem;
  line-height: 1;
  cursor: pointer;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.25);
  z-index: 150;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity 0.2s, transform 0.2s, visibility 0.2s;
}

.scroll-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.site-footer {
  position: relative;
  margin-top: auto;
  background-color: var(--c-bg-alt);
  background-image:
    linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
  background-size: 32px 32px, 32px 32px;
  border-top: 3px solid var(--c-primary);
  overflow: hidden;
}

.site-footer::before {
  content: "888";
  position: absolute;
  right: -1rem;
  bottom: -2.5rem;
  font-family: var(--font-headline);
  font-size: 12rem;
  line-height: 1;
  color: rgba(255, 255, 255, 0.03);
  transform: rotate(-8deg);
  pointer-events: none;
}

.site-footer__top {
  max-width: var(--max-width);
  margin-inline: auto;
  padding: 3rem 1.5rem 2rem;
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 2rem;
}

.site-footer__logo {
  font-family: var(--font-headline);
  font-size: 2rem;
  color: var(--c-white);
}

.site-footer__logo span {
  color: var(--c-primary);
}

.site-footer__slogan {
  margin-top: 0.5rem;
  color: var(--c-white);
  font-weight: 700;
  letter-spacing: 0.08em;
}

.site-footer__note {
  margin-top: 0.25rem;
  color: var(--c-muted);
  font-size: 0.85rem;
}

.site-footer__heading {
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px dashed rgba(255, 255, 255, 0.15);
  font-family: var(--font-headline);
  font-size: 1rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-white);
}

.site-footer__nav a,
.site-footer__legal a {
  display: block;
  padding: 0.35rem 0;
  color: var(--c-muted);
  font-size: 0.95rem;
  transition: color 0.2s, padding-left 0.2s;
}

.site-footer__nav a:hover,
.site-footer__legal a:hover {
  color: var(--c-accent);
  padding-left: 0.5rem;
}

.site-footer__contact p {
  margin-bottom: 0.45rem;
  color: var(--c-muted);
  font-size: 0.95rem;
}

.site-footer__contact p:first-of-type {
  color: var(--c-accent);
  font-family: var(--font-mono);
}

.site-footer__bottom {
  max-width: var(--max-width);
  margin-inline: auto;
  padding: 1rem 1.5rem;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--c-muted);
  font-size: 0.8rem;
  font-family: var(--font-mono);
}

.section {
  margin-block: clamp(3rem, 8vw, 6rem);
}

.section__index {
  display: block;
  font-family: var(--font-headline);
  font-size: clamp(3.5rem, 10vw, 7rem);
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1px rgba(0, 212, 170, 0.25);
}

.section__heading {
  margin-top: 0.5rem;
  font-family: var(--font-headline);
  font-size: clamp(2rem, 5vw, 3.5rem);
  line-height: 1.1;
  text-transform: uppercase;
  color: var(--c-white);
}

.section__sub {
  max-width: 60ch;
  margin-top: 1rem;
  color: var(--c-muted);
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.5rem;
}

.card {
  position: relative;
  padding: 1.5rem;
  background: var(--c-glass);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius);
  overflow: hidden;
}

.card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: linear-gradient(180deg, var(--c-primary), var(--c-accent));
  clip-path: polygon(0 0, 100% 0, 0 100%);
}

.card--accent {
  border-top: 2px solid var(--c-primary);
}

.card__title {
  margin-bottom: 0.5rem;
  font-family: var(--font-headline);
  font-size: 1.25rem;
  text-transform: uppercase;
  color: var(--c-white);
}

.card__value {
  font-family: var(--font-mono);
  font-size: 2rem;
  line-height: 1.2;
  color: var(--c-accent);
}

.card__desc {
  color: var(--c-muted);
  font-size: 0.9rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6em;
  padding: 0.8em 1.6em;
  border: 2px solid transparent;
  font-family: var(--font-headline);
  font-size: 1.05rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--c-white);
  background: transparent;
  cursor: pointer;
  clip-path: polygon(10px 0, 100% 0, calc(100% - 10px) 100%, 0 100%);
  transition: opacity 0.2s, transform 0.2s;
  text-align: center;
}

.btn:hover {
  transform: translateY(-2px);
  opacity: 0.92;
}

.btn--primary {
  background: var(--c-primary);
  color: var(--c-bg);
}

.btn--ghost {
  border-color: var(--c-accent);
  background: rgba(0, 212, 170, 0.08);
  color: var(--c-accent);
}

.btn--small {
  padding: 0.5em 1.2em;
  font-size: 0.85rem;
}

.data-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.25rem 0.6rem;
  border: 1px solid rgba(0, 212, 170, 0.3);
  border-radius: 3px;
  background: rgba(0, 212, 170, 0.12);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--c-accent);
}

.status-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  margin-right: 0.4rem;
  border-radius: 50%;
  background: var(--c-accent);
  animation: pulse 1.5s ease-in-out infinite;
}

.status-dot--live {
  background: var(--c-primary);
  animation-name: pulse-live;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.45; }
}

@keyframes pulse-live {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.3); opacity: 0.7; }
}

.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
  font-size: 0.85rem;
  color: var(--c-muted);
}

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

.breadcrumbs a:hover {
  text-decoration: underline;
}

.breadcrumbs span[aria-current="page"] {
  color: var(--c-white);
}

.media {
  position: relative;
  overflow: hidden;
  background:
    linear-gradient(135deg, rgba(0, 212, 170, 0.08), rgba(255, 107, 53, 0.08)),
    var(--c-bg-soft);
  border: 1px solid rgba(255, 255, 255, 0.12);
  aspect-ratio: 16 / 9;
}

.media img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.media::before {
  content: attr(data-label);
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--c-muted);
  pointer-events: none;
  z-index: 1;
}

@supports selector(:has(img)) {
  .media:has(img)::before {
    display: none;
  }
}

.media--portrait {
  aspect-ratio: 3 / 4;
}

.media--hero {
  aspect-ratio: 16 / 10;
}

@keyframes fade-up {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 1023px) {
  .site-footer__top {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 767px) {
  body.nav-lock {
    overflow: hidden;
  }

  .site-header__meta {
    display: none;
  }

  .site-header__inner {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 60px;
    padding: 0 1rem;
    text-align: center;
  }

  .site-header__brand {
    margin: 0;
    flex-direction: row;
    align-items: baseline;
    gap: 0.5rem;
  }

  .site-header__logo {
    font-size: 1.8rem;
  }

  .site-header__tagline {
    display: none;
  }

  .site-nav {
    position: fixed;
    inset: 0;
    z-index: 250;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(6, 20, 43, 0.97);
    -webkit-backdrop-filter: blur(16px);
    backdrop-filter: blur(16px);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s, visibility 0.3s;
  }

  .site-nav[data-open] {
    opacity: 1;
    visibility: visible;
  }

  .site-nav__labels {
    flex-direction: column;
    gap: 2rem;
    padding: 0;
  }

  .site-nav__link {
    font-size: 1.5rem;
  }

  .nav-toggle {
    position: fixed;
    bottom: 1.5rem;
    right: 1.5rem;
    z-index: 300;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 5px;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--c-primary);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.35);
  }

  .nav-toggle[aria-expanded="true"] .nav-toggle__line:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

  .nav-toggle[aria-expanded="true"] .nav-toggle__line:nth-child(2) {
    opacity: 0;
  }

  .nav-toggle[aria-expanded="true"] .nav-toggle__line:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  .scroll-top {
    right: 1.5rem;
    bottom: 5.5rem;
  }

  .site-footer__top {
    grid-template-columns: 1fr;
    padding: 2rem 1.25rem 1.5rem;
  }

  .site-footer__bottom {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
}

@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;
  }

  .site-nav {
    transition: none;
  }
}