:root {
  --c-bg: #0B1220;
  --c-bg-2: #111C33;
  --c-red: #E11D48;
  --c-blue: #22D3EE;
  --c-gold: #F59E0B;
  --c-text: #F8FAFC;
  --c-text-2: #94A3B8;
  --c-border: rgba(255, 255, 255, 0.12);
  --grad-dark: linear-gradient(135deg, #0F172A, #1E1B4B);
  --grad-accent: linear-gradient(90deg, #22D3EE, #E11D48);
  --font-heading: "Rajdhani", "Orbitron", "Noto Sans SC", "Microsoft YaHei", sans-serif;
  --font-body: "Noto Sans SC", "Microsoft YaHei", -apple-system, "Segoe UI", sans-serif;
  --container-w: 1280px;
  --content-pad: 24px;
  --radius: 4px;
  --shadow: 0 12px 32px rgba(0, 0, 0, 0.35);
  --transition: 300ms cubic-bezier(.2, .8, .2, 1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  background: var(--c-bg);
  color: var(--c-text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

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

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

p,
h1,
h2,
h3,
h4,
h5,
h6,
ul,
ol,
figure {
  margin: 0;
}

ul,
ol {
  list-style: none;
  padding: 0;
}

button {
  font: inherit;
  border: none;
  background: none;
  color: inherit;
  cursor: pointer;
}

:focus-visible {
  outline: 2px solid var(--c-blue);
  outline-offset: 3px;
  border-radius: 2px;
}

.container {
  width: min(calc(100% - 2 * var(--content-pad)), var(--container-w));
  margin-inline: auto;
}

#main-content {
  flex: 1 0 auto;
  scroll-margin-top: 140px;
}

.page-section {
  padding: 56px 0;
}

.page-head {
  position: relative;
  margin-bottom: 32px;
}

.section-meta {
  display: block;
  margin-bottom: 8px;
  color: var(--c-blue);
  font-size: 13px;
  letter-spacing: 0.12em;
}

.page-head__title {
  font-family: var(--font-heading);
  font-size: clamp(32px, 5vw, 48px);
  font-weight: 700;
  line-height: 1.1;
}

.page-head__subtitle {
  max-width: 720px;
  margin-top: 12px;
  color: var(--c-text-2);
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 16px 0;
  color: var(--c-text-2);
  font-size: 13px;
}

.breadcrumb a {
  color: var(--c-text-2);
}

.breadcrumb a:hover {
  color: var(--c-blue);
}

.breadcrumb__sep {
  color: var(--c-text-2);
  opacity: 0.6;
}

.breadcrumb__current {
  color: var(--c-text);
}

.site-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border: 1px solid var(--c-border);
  background: var(--c-bg-2);
  color: var(--c-text);
  font-family: var(--font-heading);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 1px;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition), border-color var(--transition);
}

.site-btn:hover {
  border-color: var(--c-blue);
  color: var(--c-blue);
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.site-btn--primary {
  background: var(--c-red);
  border-color: var(--c-red);
  color: #fff;
}

.site-btn--primary:hover {
  background: #be123c;
  border-color: #be123c;
  color: #fff;
}

.site-btn--ghost {
  background: transparent;
  border-color: rgba(34, 211, 238, 0.5);
  color: var(--c-blue);
}

.site-btn--ghost:hover {
  background: rgba(34, 211, 238, 0.1);
}

.site-btn--gold {
  background: var(--c-gold);
  border-color: var(--c-gold);
  color: #1f0e00;
}

.site-btn--gold:hover {
  background: #d97706;
  border-color: #d97706;
  color: #1f0e00;
}

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

.card {
  grid-column: span 6;
  position: relative;
  padding: 24px;
  background: var(--c-bg-2);
  border: 1px solid var(--c-border);
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}

.card:hover {
  border-color: rgba(34, 211, 238, 0.45);
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.card--wide {
  grid-column: span 8;
}

.card--narrow {
  grid-column: span 4;
}

.card--full {
  grid-column: 1 / -1;
}

.card__title {
  font-family: var(--font-heading);
  font-size: 20px;
  font-weight: 600;
}

.card__value {
  font-family: var(--font-heading);
  font-size: 34px;
  font-weight: 700;
  line-height: 1.15;
  margin: 8px 0 4px;
  color: var(--c-text);
}

.card__value--accent {
  color: var(--c-gold);
}

.card__meta {
  color: var(--c-text-2);
  font-size: 14px;
}

.card__link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-top: 16px;
  color: var(--c-blue);
  font-size: 14px;
  font-weight: 600;
}

.card__link:hover {
  color: var(--c-red);
}

.data-card {
  position: relative;
  overflow: hidden;
  padding: 24px;
  background: linear-gradient(135deg, rgba(17, 28, 51, 0.92), rgba(30, 27, 75, 0.55));
  border: 1px solid var(--c-border);
}

.data-card::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 84px;
  height: 84px;
  background: linear-gradient(135deg, transparent 40%, rgba(34, 211, 238, 0.15));
  pointer-events: none;
}

.data-card::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--grad-accent);
  opacity: 0.7;
}

.data-card__label {
  color: var(--c-text-2);
  font-size: 13px;
  letter-spacing: 0.08em;
}

.data-card__value {
  display: block;
  margin-top: 8px;
  font-family: var(--font-heading);
  font-size: clamp(32px, 5vw, 44px);
  line-height: 1;
  font-weight: 700;
  color: var(--c-text);
  font-variant-numeric: tabular-nums;
}

.data-card__value--accent {
  color: var(--c-gold);
}

.data-card__foot {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--c-border);
  color: var(--c-text-2);
  font-size: 14px;
}

.stat-list {
  display: grid;
  gap: 12px;
}

.stat-line {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--c-border);
}

.stat-line__label {
  color: var(--c-text-2);
}

.stat-line__value {
  font-family: var(--font-heading);
  font-weight: 600;
  color: var(--c-text);
}

.stat-line__value--gold {
  color: var(--c-gold);
}

.section-heading {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 24px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.section-heading__title {
  font-family: var(--font-heading);
  font-size: clamp(24px, 3.5vw, 32px);
  font-weight: 600;
}

.section-heading__link {
  color: var(--c-blue);
  font-size: 14px;
  font-weight: 600;
  border-bottom: 1px solid rgba(34, 211, 238, 0.3);
}

.section-heading__link:hover {
  color: var(--c-red);
  border-bottom-color: var(--c-red);
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 12px;
  border: 1px solid rgba(34, 211, 238, 0.35);
  background: rgba(34, 211, 238, 0.08);
  color: var(--c-blue);
  font-size: 12px;
  letter-spacing: 0.06em;
}

.tag--red {
  border-color: rgba(225, 29, 72, 0.35);
  background: rgba(225, 29, 72, 0.08);
  color: var(--c-red);
}

.tag--gold {
  border-color: rgba(245, 158, 11, 0.35);
  background: rgba(245, 158, 11, 0.08);
  color: var(--c-gold);
}

.media-frame {
  position: relative;
  overflow: hidden;
  background: var(--grad-dark);
  border: 1px solid var(--c-border);
}

.media-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(34, 211, 238, 0.08), transparent 40%, rgba(225, 29, 72, 0.06));
  pointer-events: none;
}

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

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

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

.media-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.skip-link {
  position: fixed;
  top: -100%;
  left: 16px;
  z-index: 200;
  padding: 10px 18px;
  background: var(--c-blue);
  color: #06202a;
  font-weight: 600;
  text-decoration: none;
  transition: top 200ms ease;
}

.skip-link:focus-visible {
  top: 16px;
}

.scroll-progress {
  position: absolute;
  top: 0;
  left: 0;
  height: 3px;
  width: 0%;
  background: var(--grad-accent);
  z-index: 150;
  pointer-events: none;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(11, 18, 32, 0.96);
  border-bottom: 1px solid var(--c-border);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.25);
}

.site-topbar {
  background: linear-gradient(90deg, rgba(34, 211, 238, 0.1), rgba(11, 18, 32, 0.4) 45%, rgba(225, 29, 72, 0.08));
  border-bottom: 1px solid var(--c-border);
}

.site-topbar__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 12px 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--c-text);
}

.brand:hover {
  color: var(--c-text);
}

.brand__mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  background: linear-gradient(135deg, var(--c-blue), var(--c-red));
  color: #fff;
  font-family: var(--font-heading);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 1px;
  clip-path: polygon(0 0, 100% 0, 100% 75%, 75% 100%, 0 100%);
}

.brand__text {
  display: inline-flex;
  flex-direction: column;
  line-height: 1.25;
}

.brand__name {
  font-family: var(--font-heading);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 2px;
}

.brand__slogan {
  color: var(--c-text-2);
  font-size: 12px;
  letter-spacing: 1px;
  margin-top: 2px;
}

.live-thermo {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: rgba(17, 28, 51, 0.8);
  border: 1px solid var(--c-border);
  color: var(--c-text);
}

.live-thermo__dot {
  width: 8px;
  height: 8px;
  flex: none;
  border-radius: 50%;
  background: var(--c-blue);
  animation: thermo-pulse 2s ease-out infinite;
}

.live-thermo__text {
  font-size: 13px;
  letter-spacing: 0.04em;
  font-variant-numeric: tabular-nums;
  color: var(--c-text-2);
}

@keyframes thermo-pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(34, 211, 238, 0.7);
  }
  70% {
    box-shadow: 0 0 0 10px rgba(34, 211, 238, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(34, 211, 238, 0);
  }
}

.site-nav-wrap {
  border-top: 1px solid var(--c-border);
  background: rgba(11, 18, 32, 0.8);
}

.site-nav__inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  min-height: 56px;
}

.site-nav {
  flex: 1;
  margin: 0;
}

.site-nav__list {
  display: flex;
  align-items: center;
  gap: 4px;
}

.site-nav a {
  display: block;
  padding: 14px 16px;
  color: var(--c-text-2);
  font-family: var(--font-heading);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.6px;
  border-bottom: 2px solid transparent;
  transition: color var(--transition), border-color var(--transition), background var(--transition);
  white-space: nowrap;
}

.site-nav a:hover {
  color: var(--c-blue);
  border-bottom-color: var(--c-blue);
}

.site-nav a[aria-current="page"] {
  color: var(--c-text);
  border-bottom-color: var(--c-red);
}

.nav-toggle {
  display: none;
}

.nav-toggle__box {
  position: relative;
  width: 20px;
  height: 14px;
}

.nav-toggle__bar {
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  background: currentColor;
  border-radius: 2px;
  transition: top var(--transition), transform var(--transition), opacity var(--transition);
}

.nav-toggle__bar:nth-child(1) {
  top: 0;
}

.nav-toggle__bar:nth-child(2) {
  top: 6px;
}

.nav-toggle__bar:nth-child(3) {
  top: 12px;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(1) {
  top: 6px;
  transform: 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) {
  top: 6px;
  transform: rotate(-45deg);
}

.nav-toggle__label {
  font-size: 13px;
  letter-spacing: 1px;
  font-family: var(--font-heading);
}

.site-footer {
  margin-top: auto;
  position: relative;
  background: linear-gradient(180deg, rgba(17, 28, 51, 0.88), rgba(11, 18, 32, 1) 70%);
  border-top: 1px solid var(--c-border);
}

.site-footer::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--c-blue), transparent 35%, var(--c-red), var(--c-gold));
  opacity: 0.8;
}

.site-footer__grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1.2fr;
  gap: 40px;
  padding: 48px 0 32px;
}

.footer-brand,
.footer-links,
.footer-contact {
  min-width: 0;
}

.footer-brand__name {
  font-family: var(--font-heading);
  font-size: 24px;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--c-text);
}

.footer-brand__summary {
  margin-top: 12px;
  color: var(--c-text-2);
}

.footer-brand__trust {
  margin-top: 16px;
  padding-left: 12px;
  border-left: 2px solid var(--c-blue);
  color: var(--c-text-2);
  font-size: 13px;
}

.footer-heading {
  position: relative;
  margin-bottom: 16px;
  padding-bottom: 8px;
  font-family: var(--font-heading);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 2px;
  color: var(--c-text);
}

.footer-heading::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 32px;
  height: 2px;
  background: var(--c-red);
}

.footer-links__list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px 16px;
}

.footer-links__list a {
  display: inline-block;
  color: var(--c-text-2);
  font-size: 14px;
  transition: color var(--transition), padding-left var(--transition);
}

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

.footer-contact__list {
  display: grid;
  gap: 10px;
  color: var(--c-text-2);
  font-size: 14px;
}

.footer-icp {
  margin-top: 16px;
  color: var(--c-text-2);
  font-size: 13px;
  letter-spacing: 1px;
}

.site-footer__bottom {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px 24px;
  padding: 20px 0;
  border-top: 1px solid var(--c-border);
  color: var(--c-text-2);
  font-size: 13px;
}

.footer-contact__note {
  color: var(--c-text-2);
  font-size: 12px;
}

.top-control {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 120;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  background: var(--c-bg-2);
  border: 1px solid var(--c-blue);
  color: var(--c-blue);
  font-family: var(--font-heading);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 1px;
  box-shadow: var(--shadow);
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: opacity var(--transition), transform var(--transition), visibility var(--transition), background var(--transition), border-color var(--transition);
}

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

.top-control:hover {
  background: var(--c-red);
  border-color: var(--c-red);
  color: #fff;
}

.top-control__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  font-size: 16px;
  line-height: 1;
}

.top-control__text {
  font-size: 13px;
}

.js [data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 600ms ease, transform 600ms ease;
}

.js [data-reveal].is-revealed {
  opacity: 1;
  transform: none;
}

@media (max-width: 991px) {
  .card,
  .card--wide,
  .card--narrow {
    grid-column: span 6;
  }

  .site-footer__grid {
    grid-template-columns: 1fr 1fr;
  }

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

@media (max-width: 767px) {
  #main-content {
    scroll-margin-top: 110px;
  }

  .card,
  .card--wide,
  .card--narrow {
    grid-column: 1 / -1;
  }

  .site-topbar__inner {
    flex-wrap: nowrap;
    gap: 12px;
    padding: 10px 0;
  }

  .brand__mark {
    width: 40px;
    height: 40px;
    font-size: 13px;
  }

  .brand__name {
    font-size: 18px;
  }

  .brand__slogan {
    display: none;
  }

  .live-thermo {
    padding: 4px 10px;
  }

  .live-thermo__text {
    font-size: 12px;
  }

  .site-nav__inner {
    justify-content: flex-end;
    min-height: 48px;
  }

  .site-nav {
    display: none;
    flex-basis: 100%;
    order: 3;
    flex-grow: 0;
    margin-top: 4px;
    padding: 8px 0;
    background: var(--c-bg-2);
    border-top: 1px solid var(--c-border);
  }

  .site-nav[data-open] {
    display: block;
  }

  .site-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .site-nav a {
    padding: 12px 16px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    border-left: 3px solid transparent;
  }

  .site-nav a:hover {
    color: var(--c-blue);
    border-left-color: var(--c-blue);
    border-bottom-color: rgba(255, 255, 255, 0.06);
  }

  .site-nav a[aria-current="page"] {
    color: var(--c-text);
    border-left-color: var(--c-red);
    border-bottom-color: rgba(255, 255, 255, 0.06);
    background: rgba(225, 29, 72, 0.06);
  }

  .nav-toggle {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    border: 1px solid var(--c-border);
    background: var(--c-bg-2);
    color: var(--c-text);
    border-radius: var(--radius);
  }

  .site-footer__grid {
    grid-template-columns: 1fr;
    gap: 32px;
    padding: 32px 0 24px;
  }

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

@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;
  }

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

  .live-thermo__dot {
    animation: none;
  }
}