:root {
  --deep-blue: #0a1f44;
  --deep-blue-2: #123a6b;
  --bright-orange: #ff6b35;
  --neon-green: #39ff14;
  --ink: #141414;
  --off-white: #f5f0e8;
  --mineral-gray: #b0a9a3;
  --mineral-moss: #6b7a5e;
  --mineral-clay: #b96540;
  --blue-gradient: linear-gradient(135deg, #0a1f44 0%, #123a6b 100%);
  --shadow-ink: rgba(0, 0, 0, 0.45);
  --heading-font: 'Anton', 'Roboto Condensed', Impact, sans-serif;
  --body-font: 'Roboto', 'Helvetica Neue', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --accent-font: 'Space Mono', 'Roboto Mono', monospace;
  --header-h: 64px;
  --header-w: 16rem;
  --gutter: clamp(1.25rem, 4vw, 3.5rem);
  --max-w: 1440px;
}

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

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

body {
  margin: 0;
  padding-top: var(--header-h);
  background: var(--off-white);
  color: var(--ink);
  font-family: var(--body-font);
  font-size: 1rem;
  line-height: 1.7;
  min-height: 100vh;
}

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

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

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

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

button {
  font: inherit;
  border: 0;
}

.site-main {
  display: block;
  min-height: 70vh;
}

#main-content {
  scroll-margin-top: calc(var(--header-h) + 1rem);
}

.skip-link {
  position: fixed;
  top: 0.5rem;
  left: 0.5rem;
  z-index: 2000;
  padding: 0.65rem 1rem;
  background: var(--bright-orange);
  color: var(--deep-blue);
  font-family: var(--accent-font);
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  transform: translateY(-300%);
  transition: transform 0.2s ease;
}

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

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

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 1000;
  width: 100%;
  min-height: var(--header-h);
  background: var(--deep-blue);
  color: var(--off-white);
  border-bottom: 1px solid rgba(57, 255, 20, 0.28);
}

.site-header::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(180deg, var(--bright-orange) 0%, var(--neon-green) 100%);
}

.site-progress {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  z-index: 1200;
  background: rgba(245, 240, 232, 0.14);
  pointer-events: none;
}

.site-progress span {
  display: block;
  width: 0;
  height: 100%;
  background: linear-gradient(90deg, var(--bright-orange) 0%, var(--neon-green) 100%);
}

.header-shell {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: var(--header-h);
  padding: 0 1.25rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.85rem;
  min-height: 44px;
  color: var(--off-white);
}

.brand-cube {
  flex: 0 0 auto;
  width: 30px;
  height: 30px;
  background: var(--deep-blue);
  border: 2px solid var(--neon-green);
  transform: skew(-8deg);
}

.brand-cube::before {
  content: "";
  display: block;
  position: absolute;
  inset: 4px;
  background: var(--bright-orange);
  clip-path: polygon(0 0, 100% 0, 100% 70%, 70% 100%, 0 100%);
}

.brand-copy {
  display: flex;
  flex-direction: column;
  line-height: 1;
}

.brand-copy strong {
  font-family: var(--heading-font);
  font-size: 1.1rem;
  letter-spacing: 0.06em;
}

.brand-copy small {
  margin-top: 0.2rem;
  font-family: var(--accent-font);
  font-size: 0.66rem;
  letter-spacing: 0.18em;
  color: var(--neon-green);
}

.nav-toggle {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  min-width: 44px;
  min-height: 44px;
  padding: 0.5rem;
  background: transparent;
  cursor: pointer;
}

.nav-toggle-line {
  display: block;
  width: 26px;
  height: 2px;
  background: var(--bright-orange);
  transition: transform 0.3s ease, opacity 0.3s ease, background 0.2s ease;
}

.nav-toggle:hover .nav-toggle-line {
  background: var(--neon-green);
}

.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);
}

.site-nav {
  display: flex;
  flex-direction: column;
  position: fixed;
  top: var(--header-h);
  left: 0;
  right: 0;
  z-index: 900;
  max-height: 0;
  overflow: hidden;
  visibility: hidden;
  background: var(--deep-blue);
  border-bottom: 1px solid rgba(57, 255, 20, 0.35);
  transition: max-height 0.35s ease, visibility 0.35s ease;
}

.site-nav[data-open] {
  max-height: calc(100vh - var(--header-h));
  visibility: visible;
  overflow-y: auto;
}

.nav-list {
  display: grid;
  gap: 0.15rem;
  padding: 0.75rem 1.25rem 0.5rem;
}

.nav-link {
  display: flex;
  align-items: center;
  min-height: 44px;
  padding: 0.5rem 0.25rem;
  border-bottom: 1px solid rgba(245, 240, 232, 0.12);
  color: rgba(245, 240, 232, 0.84);
  font-weight: 500;
  letter-spacing: 0.04em;
  transition: border-color 0.2s ease, background 0.2s ease, color 0.2s ease, padding-left 0.2s ease;
}

.nav-link:hover,
.nav-link[aria-current="page"] {
  background: linear-gradient(90deg, rgba(57, 255, 20, 0.1), transparent);
  border-left: 3px solid var(--bright-orange);
  color: var(--off-white);
  padding-left: 0.75rem;
}

.nav-cta {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  margin: 0.75rem 1.25rem 1.25rem;
  background: var(--bright-orange);
  border: 1px solid var(--bright-orange);
  color: var(--deep-blue);
  font-family: var(--accent-font);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: transform 0.2s ease, background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.nav-cta:hover {
  background: var(--off-white);
  border-color: var(--off-white);
  color: var(--deep-blue);
  transform: translateX(3px);
}

.site-footer {
  position: relative;
  overflow: hidden;
  margin-top: clamp(3rem, 8vw, 6rem);
  background: var(--ink);
  color: var(--off-white);
  border-top: 4px solid var(--bright-orange);
}

.site-footer::before {
  content: "";
  position: absolute;
  top: -4px;
  right: 0;
  width: 28%;
  height: 8px;
  background: var(--neon-green);
  transform: skewX(-30deg);
}

.footer-shell {
  display: grid;
  gap: 2.5rem;
  max-width: var(--max-w);
  margin-inline: auto;
  padding: clamp(2.5rem, 7vw, 5rem) var(--gutter) 2rem;
}

.footer-brand-link {
  display: inline-block;
  font-family: var(--heading-font);
  font-size: 1.8rem;
  letter-spacing: 0.05em;
  line-height: 1;
  text-transform: uppercase;
}

.footer-tagline {
  margin-top: 0.4rem;
  font-family: var(--accent-font);
  letter-spacing: 0.06em;
  color: var(--neon-green);
}

.footer-trust {
  max-width: 40em;
  margin-top: 1.25rem;
  padding-left: 1rem;
  border-left: 3px solid var(--mineral-moss);
  color: var(--mineral-gray);
  font-size: 0.92rem;
}

.footer-heading {
  margin-bottom: 1rem;
  font-family: var(--accent-font);
  font-size: 0.82rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--bright-orange);
}

.footer-links ul {
  display: grid;
  gap: 0.6rem;
}

.footer-links a {
  display: inline-block;
  border-bottom: 1px solid transparent;
  color: rgba(245, 240, 232, 0.78);
  transition: color 0.2s ease, border-color 0.2s ease;
}

.footer-links a:hover {
  border-bottom-color: var(--neon-green);
  color: var(--neon-green);
}

.footer-contact p {
  margin: 0.35rem 0;
  color: rgba(245, 240, 232, 0.78);
}

.footer-service {
  margin-top: 0.7rem;
  font-family: var(--accent-font) !important;
  font-size: 0.78rem;
  color: var(--mineral-gray) !important;
}

.footer-legal {
  background: rgba(0, 0, 0, 0.28);
  border-top: 1px solid rgba(245, 240, 232, 0.14);
}

.footer-legal-inner {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  max-width: var(--max-w);
  margin-inline: auto;
  padding: 1.25rem var(--gutter);
  font-family: var(--accent-font);
  font-size: 0.75rem;
  color: var(--mineral-gray);
}

.container {
  width: min(100%, var(--max-w));
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.container--wide {
  width: min(100%, 1720px);
  max-width: none;
}

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

.grid {
  display: grid;
  gap: var(--gutter);
}

@media (min-width: 640px) {
  .grid--2 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 900px) {
  .grid--2 {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .grid--4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1280px) {
  .grid--4 {
    grid-template-columns: repeat(4, 1fr);
  }
}

.section-label {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 1rem;
  font-family: var(--accent-font);
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--mineral-clay);
}

.section-label::before {
  content: "";
  width: 2rem;
  height: 2px;
  background: var(--bright-orange);
}

.section-title {
  margin-bottom: 1.25rem;
  font-family: var(--heading-font);
  font-size: clamp(2.2rem, 6vw, 4.5rem);
  font-style: italic;
  font-weight: 400;
  line-height: 0.95;
  letter-spacing: 0.005em;
  text-transform: uppercase;
  color: var(--deep-blue);
}

.section-note {
  max-width: 36em;
  margin-bottom: 1.5rem;
  padding-left: 1rem;
  border-left: 3px solid var(--bright-orange);
  color: #34383c;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 44px;
  padding: 0.65rem 1.15rem;
  border: 1px solid transparent;
  background: transparent;
  cursor: pointer;
  font-family: var(--accent-font);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-align: center;
  transition: transform 0.2s ease, background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.btn--primary {
  background: var(--bright-orange);
  border-color: var(--bright-orange);
  color: var(--deep-blue);
}

.btn--primary:hover {
  background: var(--off-white);
  border-color: var(--off-white);
  color: var(--deep-blue);
  transform: translateX(3px);
}

.btn--outline {
  border-color: var(--deep-blue);
  color: var(--deep-blue);
}

.btn--outline:hover {
  background: var(--deep-blue);
  color: var(--off-white);
  transform: translateX(3px);
}

.btn--ghost {
  border-color: rgba(245, 240, 232, 0.4);
  color: var(--off-white);
}

.btn--ghost:hover {
  border-color: var(--neon-green);
  color: var(--neon-green);
  transform: translateX(3px);
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin: 0;
  padding: 1rem 0 0;
  font-family: var(--accent-font);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--mineral-gray);
}

.breadcrumb li {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.breadcrumb li + li::before {
  content: "/";
  color: var(--mineral-gray);
}

.breadcrumb a:hover {
  color: var(--bright-orange);
}

.breadcrumb [aria-current="page"] {
  color: var(--mineral-clay);
}

.media-frame {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  background: var(--deep-blue);
  border-left: 3px solid var(--neon-green);
}

.media-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255, 107, 53, 0.28), rgba(255, 107, 53, 0) 48%, rgba(57, 255, 20, 0.12));
  mix-blend-mode: screen;
  pointer-events: none;
}

.media-frame--wide {
  aspect-ratio: 21 / 9;
}

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

.media-frame--tall {
  aspect-ratio: 4 / 5;
}

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

.data-card {
  position: relative;
  padding: 1.25rem;
  background: var(--off-white);
  border: 1px solid rgba(10, 31, 68, 0.16);
  box-shadow: 6px 6px 0 var(--mineral-gray);
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.data-card::before {
  content: "";
  display: block;
  width: 2.75rem;
  height: 3px;
  margin-bottom: 1rem;
  background: var(--bright-orange);
}

.data-card:hover {
  transform: translate(-2px, -3px) rotate(-0.4deg);
  border-color: var(--bright-orange);
  box-shadow: 8px 8px 0 var(--bright-orange);
}

.data-card__index {
  font-family: var(--accent-font);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--mineral-clay);
}

.data-card__value {
  margin-top: 0.2rem;
  font-family: var(--heading-font);
  font-size: clamp(2rem, 4vw, 3.25rem);
  line-height: 1;
  text-transform: uppercase;
  color: var(--deep-blue);
}

.data-card__unit {
  font-family: var(--accent-font);
  font-size: 0.85rem;
  color: var(--bright-orange);
}

.data-card__label {
  margin-top: 0.5rem;
  font-family: var(--accent-font);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--mineral-gray);
}

.metric--live {
  background: var(--deep-blue);
  border-color: var(--neon-green);
  box-shadow: 6px 6px 0 rgba(57, 255, 20, 0.3);
}

.metric--live::before {
  background: var(--neon-green);
}

.metric--live .data-card__value {
  color: var(--neon-green);
}

.metric--live .data-card__label {
  color: rgba(245, 240, 232, 0.7);
}

.table-wrap {
  overflow-x: auto;
  background: var(--off-white);
  border: 1px solid rgba(10, 31, 68, 0.16);
  border-top: 4px solid var(--deep-blue);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
}

.data-table th {
  padding: 0.8rem 1rem;
  background: var(--deep-blue);
  color: var(--off-white);
  font-family: var(--accent-font);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-align: left;
}

.data-table td {
  padding: 0.8rem 1rem;
  border-bottom: 1px solid rgba(10, 31, 68, 0.1);
}

.data-table tbody tr {
  transition: background 0.15s ease;
}

.data-table tbody tr:hover {
  background: rgba(255, 107, 53, 0.08);
}

.notice {
  padding: 1rem 1.25rem;
  background: rgba(255, 107, 53, 0.08);
  border-left: 4px solid var(--bright-orange);
}

.trust-note {
  padding: 1rem 1.25rem;
  background: rgba(107, 122, 94, 0.16);
  border-left: 4px solid var(--mineral-moss);
  color: var(--ink);
}

[data-chapter] {
  scroll-margin-top: calc(var(--header-h) + 1rem);
  border-left: 3px solid transparent;
  transition: border-color 0.3s ease, background 0.3s ease;
}

[data-chapter][data-highlight] {
  border-left-color: var(--bright-orange);
}

.js [data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}

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

@media (min-width: 700px) {
  .footer-shell {
    grid-template-columns: 1fr 1fr;
  }

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

  .footer-legal-inner {
    flex-direction: row;
    justify-content: space-between;
  }
}

@media (min-width: 900px) {
  .footer-shell {
    grid-template-columns: 1fr 1fr 1fr;
  }

  .footer-brand {
    grid-column: auto;
  }
}

@media (min-width: 1024px) {
  body {
    padding-top: 0;
    padding-left: var(--header-w);
  }

  #main-content {
    scroll-margin-top: 1rem;
  }

  .site-header {
    width: var(--header-w);
    height: 100vh;
    background: var(--blue-gradient);
    border-right: 1px solid rgba(57, 255, 20, 0.35);
    border-bottom: 0;
  }

  .header-shell {
    height: 100%;
    min-height: 100%;
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    padding: 2rem 1.5rem;
  }

  .brand {
    margin-bottom: 2.5rem;
  }

  .brand-copy strong {
    font-size: 1.3rem;
  }

  .nav-toggle {
    display: none;
  }

  .site-nav {
    position: static;
    flex: 1;
    max-height: none;
    overflow: visible;
    visibility: visible;
    background: transparent;
    border: 0;
  }

  .nav-list {
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
    padding: 0;
  }

  .nav-link {
    min-height: 48px;
    padding: 0.85rem 1rem;
    border-bottom: 0;
    border-left: 3px solid transparent;
  }

  .nav-link:hover,
  .nav-link[aria-current="page"] {
    background: linear-gradient(90deg, rgba(57, 255, 20, 0.12), transparent);
    border-left-color: var(--bright-orange);
    padding-left: 1.25rem;
  }

  .nav-cta {
    margin: auto 0 0;
  }

  .footer-shell {
    grid-template-columns: 1.3fr 0.6fr 1fr;
  }
}

@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 !important;
    transform: none !important;
  }
}