:root {
  color-scheme: dark;
  --color-bg: #0A1F44;
  --color-bg-secondary: #0E2A5A;
  --color-bg-module: #12356E;
  --color-accent: #00E676;
  --color-accent-2: #00C853;
  --color-hot: #FF6D00;
  --color-hot-2: #FF9E00;
  --color-text: #F5F7FA;
  --color-muted: #B0BEC5;
  --color-white: #FFFFFF;
  --font-heading: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-body: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-mono: "JetBrains Mono", "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  --shadow: 8px 8px 0 rgba(0, 0, 0, .25);
}

* {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  font-family: var(--font-body);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.75;
  overflow-x: hidden;
}

main {
  flex: 1;
}

h1, h2, h3, h4, p, ul {
  margin: 0;
}

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

a {
  color: inherit;
  text-decoration: none;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

button {
  font: inherit;
}

.container {
  width: min(1400px, calc(100% - 2rem));
  margin-inline: auto;
}

@media (min-width: 720px) {
  .container {
    width: min(1400px, calc(100% - 3rem));
  }
}

.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;
}

a:focus-visible,
button:focus-visible {
  outline: 3px solid var(--color-hot);
  outline-offset: 2px;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -100%;
  z-index: 200;
  background: var(--color-accent);
  color: #062116;
  font-weight: 700;
  padding: .75rem 1.5rem;
  box-shadow: 0 4px 12px rgba(0, 0, 0, .3);
}

.skip-link:focus {
  top: 1rem;
}

.display {
  font-size: clamp(2.5rem, 8vw, 5rem);
  font-weight: 900;
  letter-spacing: -.03em;
  line-height: 1.05;
  margin: 0 0 1.5rem;
}

.kicker {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--color-accent);
  background: rgba(0, 230, 118, .1);
  border-left: 3px solid var(--color-accent);
  padding: .35rem .7rem;
  margin-bottom: 1rem;
}

.lead {
  font-size: 1.1rem;
  color: var(--color-muted);
  max-width: 60ch;
}

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

.section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1.5rem 2rem;
  margin-bottom: 2.5rem;
}

.section-title {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 900;
  letter-spacing: -.02em;
  line-height: 1.1;
  margin: 0;
  position: relative;
}

.section-title::before {
  content: "";
  display: inline-block;
  width: .55em;
  height: .18em;
  background: var(--color-hot);
  margin-right: .25em;
  vertical-align: middle;
}

.grid {
  display: grid;
  gap: 1.5rem;
}

@media (min-width: 720px) {
  .grid--2 {
    grid-template-columns: repeat(2, 1fr);
  }

  .grid--3 {
    grid-template-columns: repeat(3, 1fr);
  }
}

.card {
  background: var(--color-bg-secondary);
  border: 1px solid rgba(255, 255, 255, .08);
  border-left: 4px solid var(--color-accent);
  padding: 1.5rem;
  box-shadow: var(--shadow);
}

.card--hot {
  border-left-color: var(--color-hot);
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  font-family: var(--font-mono);
  font-size: .7rem;
  font-weight: 500;
  letter-spacing: .1em;
  text-transform: uppercase;
  padding: .35rem .65rem;
  background: var(--color-hot);
  color: var(--color-white);
}

.badge--green {
  background: var(--color-accent);
  color: #062116;
}

.data-list {
  display: grid;
  gap: .6rem;
}

.data-line {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: baseline;
  padding: .7rem 0;
  border-bottom: 1px dashed rgba(176, 190, 197, .22);
}

.data-label {
  font-family: var(--font-mono);
  font-size: .75rem;
  color: var(--color-muted);
  letter-spacing: .05em;
  text-transform: uppercase;
}

.data-value {
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--color-text);
  font-weight: 500;
}

.data-value strong {
  color: var(--color-accent);
  font-size: 1.4rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  font-weight: 700;
  font-family: inherit;
  padding: .75rem 1.5rem;
  border: 1px solid var(--color-muted);
  background: transparent;
  color: var(--color-text);
  cursor: pointer;
  transition: background .2s, color .2s, border-color .2s, transform .2s;
}

.btn:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.btn-primary {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: #062116;
}

.btn-primary:hover {
  background: var(--color-accent-2);
  border-color: var(--color-accent-2);
  color: #062116;
  transform: translateY(-2px);
}

.btn-ghost {
  background: transparent;
  border-color: rgba(255, 255, 255, .25);
}

.btn-ghost:hover {
  border-color: var(--color-hot);
  color: var(--color-hot);
}

.media-frame {
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, var(--color-bg-module), var(--color-bg-secondary));
  border: 1px solid rgba(255, 255, 255, .12);
  aspect-ratio: 16 / 9;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: .8rem;
  text-align: center;
}

.media-frame img {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.media-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(0, 230, 118, .14), rgba(255, 109, 0, .06));
  pointer-events: none;
}

.tabs {
  background: var(--color-bg-secondary);
  border: 1px solid rgba(255, 255, 255, .1);
  box-shadow: var(--shadow);
}

.tablist {
  display: flex;
  flex-wrap: wrap;
  border-bottom: 1px solid rgba(255, 255, 255, .1);
  background: rgba(10, 31, 68, .4);
}

.tab {
  appearance: none;
  background: transparent;
  border: 0;
  border-bottom: 3px solid transparent;
  color: var(--color-muted);
  font-family: inherit;
  font-weight: 700;
  font-size: .9rem;
  padding: 1rem 1.25rem;
  margin-bottom: -1px;
  cursor: pointer;
  transition: color .2s, border-color .2s;
}

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

.tab[aria-selected="true"] {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
}

.tab-panel {
  padding: 1.5rem;
}

.tab-panel[hidden] {
  display: none;
}

.scroll-top {
  position: fixed;
  right: 1rem;
  bottom: 1rem;
  width: 48px;
  height: 48px;
  border-radius: 0;
  border: 2px solid var(--color-accent);
  background: var(--color-bg);
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 1.5rem;
  cursor: pointer;
  z-index: 90;
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: opacity .25s, transform .25s, background .2s, color .2s, visibility .25s;
}

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

.scroll-top:hover {
  background: var(--color-accent);
  color: #062116;
}

.text-accent {
  color: var(--color-accent);
}

.text-hot {
  color: var(--color-hot);
}

.mono {
  font-family: var(--font-mono);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 120;
  background: linear-gradient(180deg, #0D2450, var(--color-bg) 60%);
  border-bottom: 2px solid var(--color-accent);
}

.site-header::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-hot) 60%, transparent);
}

.header-masthead {
  border-bottom: 1px solid rgba(255, 255, 255, .08);
}

.masthead-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  align-items: center;
  gap: .75rem;
  padding-block: .9rem;
}

.masthead-meta {
  justify-self: start;
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .18em;
  text-transform: uppercase;
}

.brand {
  justify-self: center;
  text-align: center;
  display: block;
  line-height: 1;
}

.brand-name {
  display: block;
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: 1.5rem;
  letter-spacing: -.02em;
  color: var(--color-white);
}

.brand-sub {
  display: block;
  margin-top: .35rem;
  font-family: var(--font-mono);
  font-size: .62rem;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--color-muted);
}

.header-cta {
  justify-self: end;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: inherit;
  font-weight: 700;
  font-size: .8rem;
  background: var(--color-accent);
  color: #062116;
  border: 1px solid var(--color-accent);
  padding: .55rem 1rem;
  white-space: nowrap;
  transition: background .2s, transform .2s, box-shadow .2s;
}

.header-cta:hover {
  background: var(--color-accent-2);
  border-color: var(--color-accent-2);
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(0, 230, 118, .25);
}

.header-navbar {
  position: relative;
  background: rgba(14, 42, 90, .45);
}

.header-inner {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 3.5rem;
}

.site-nav {
  margin: 0;
}

.nav-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: .15rem;
}

.nav-list a {
  display: inline-block;
  padding: .6rem 1rem;
  font-size: .85rem;
  font-weight: 700;
  color: var(--color-muted);
  border-bottom: 3px solid transparent;
  transition: color .2s, border-color .2s, background .2s;
}

.nav-list a:hover {
  color: var(--color-white);
  background: rgba(255, 255, 255, .04);
}

.nav-list a[aria-current="page"] {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
  background: rgba(0, 230, 118, .08);
}

.nav-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--color-muted);
  width: 44px;
  height: 44px;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  color: var(--color-text);
}

.nav-toggle-icon {
  position: relative;
  width: 20px;
  height: 2px;
  background: currentColor;
  display: block;
}

.nav-toggle-icon::before,
.nav-toggle-icon::after {
  content: "";
  position: absolute;
  left: 0;
  width: 20px;
  height: 2px;
  background: currentColor;
  transition: transform .2s, top .2s;
}

.nav-toggle-icon::before {
  top: -6px;
}

.nav-toggle-icon::after {
  top: 6px;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-icon {
  background: transparent;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-icon::before {
  top: 0;
  transform: rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-icon::after {
  top: 0;
  transform: rotate(-45deg);
}

@media (max-width: 980px) {
  .masthead-row {
    grid-template-columns: minmax(0, 1fr) auto;
    padding-block: .7rem;
  }

  .masthead-meta {
    display: none;
  }

  .brand {
    justify-self: start;
    text-align: left;
  }

  .brand-name {
    font-size: 1.2rem;
  }

  .brand-sub {
    letter-spacing: .12em;
  }

  .header-cta {
    justify-self: end;
    font-size: .7rem;
    padding: .45rem .7rem;
  }

  .header-inner {
    justify-content: flex-end;
    min-height: 3rem;
  }

  .site-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    display: none;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-accent);
    box-shadow: 0 18px 30px rgba(0, 0, 0, .4);
    z-index: 50;
  }

  .site-nav[data-open="true"] {
    display: block;
    animation: navIn .18s ease-out;
  }

  .nav-list {
    flex-direction: column;
    padding: .25rem;
    gap: 0;
  }

  .nav-list a {
    display: block;
    border-left: 3px solid transparent;
    border-bottom: 1px solid rgba(255, 255, 255, .06);
    border-radius: 0;
    padding: .9rem 1rem;
  }

  .nav-list a[aria-current="page"] {
    border-left-color: var(--color-accent);
    border-bottom-color: rgba(255, 255, 255, .06);
    background: rgba(0, 230, 118, .06);
  }

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

@keyframes navIn {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.site-footer {
  position: relative;
  margin-top: auto;
  background: #071630;
  border-top: 2px solid var(--color-hot);
  color: var(--color-muted);
}

.site-footer::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-hot) 45%, transparent);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2.2fr 1fr 1fr 1.6fr;
  gap: 2.5rem;
  padding-block: 3rem 2rem;
}

.footer-brand {
  display: flex;
  flex-direction: column;
}

.footer-logo {
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: 1.35rem;
  color: var(--color-white);
  line-height: 1.2;
  margin-bottom: .35rem;
}

.footer-sub {
  font-family: var(--font-mono);
  font-size: .66rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 1rem;
}

.footer-trust {
  max-width: 42ch;
  font-size: .88rem;
  line-height: 1.7;
  color: var(--color-muted);
}

.footer-col {
  display: flex;
  flex-direction: column;
  gap: .6rem;
}

.footer-heading {
  font-family: var(--font-heading);
  font-size: .9rem;
  font-weight: 900;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--color-white);
  margin-bottom: .6rem;
}

.footer-links {
  display: grid;
  gap: .55rem;
}

.footer-links a {
  color: var(--color-muted);
  font-size: .92rem;
  transition: color .2s, padding-left .2s;
}

.footer-links a:hover {
  color: var(--color-accent);
  padding-left: .2rem;
}

.footer-line {
  font-size: .88rem;
  color: var(--color-muted);
  line-height: 1.6;
  margin: .1rem 0;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, .08);
  padding-block: 1.2rem;
  font-family: var(--font-mono);
  font-size: .75rem;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: space-between;
}

.footer-bottom a {
  color: var(--color-muted);
}

.footer-bottom a:hover {
  color: var(--color-accent);
}

@media (max-width: 980px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }

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

@media (max-width: 620px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
}