:root {
  --color-primary: #0A1F44;
  --color-primary-deep: #071630;
  --color-surface: #1E3A6B;
  --color-accent: #FF6B35;
  --color-accent-light: #FFB347;
  --color-text: #EAF0FF;
  --color-text-muted: #8A9BC0;
  --color-border: #2C3E6E;
  --color-chart: #4A90D9;
  --color-white: #FFFFFF;

  --font-heading: 'Oswald', 'Arial Narrow', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --font-body: 'IBM Plex Sans', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
  --font-mono: 'IBM Plex Mono', 'SFMono-Regular', Consolas, 'Liberation Mono', monospace;

  --size-body: 16px;
  --size-small: 14px;
  --size-tiny: 12px;
  --size-h1: clamp(32px, 5vw, 48px);
  --size-h2: clamp(24px, 3.5vw, 32px);
  --size-h3: clamp(20px, 2.5vw, 24px);

  --space-section: clamp(56px, 9vw, 96px);
  --container-width: 1200px;
  --transition-fast: 200ms ease-out;
  --z-header: 100;
  --z-progress: 200;
  --z-skip: 1000;
}

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

html {
  scroll-padding-top: 112px;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  font-family: var(--font-body);
  font-size: var(--size-body);
  line-height: 1.6;
  letter-spacing: 0.02em;
  color: var(--color-text);
  background-color: var(--color-primary);
  background-image:
    radial-gradient(circle at 18% 18%, rgba(255, 107, 53, 0.05), transparent 32%),
    linear-gradient(rgba(138, 155, 192, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(138, 155, 192, 0.04) 1px, transparent 1px);
  background-size: auto, 80px 80px, 80px 80px;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color 200ms ease-out;
}

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

p,
ul,
ol,
dl,
blockquote,
figure {
  margin: 0 0 1em;
}

ul,
ol {
  list-style: none;
}

strong,
b {
  font-weight: 600;
  color: var(--color-white);
}

small {
  font-size: var(--size-small);
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--color-white);
  margin: 0 0 0.6em;
}

h1 { font-size: var(--size-h1); }
h2 { font-size: var(--size-h2); }
h3 { font-size: var(--size-h3); }
h4 { font-size: 20px; }
h5 { font-size: 18px; }
h6 { font-size: 16px; }

#main-content {
  flex: 1 0 auto;
  width: 100%;
  outline: none;
}

::selection {
  background: var(--color-accent);
  color: var(--color-primary-deep);
}

.container {
  width: 100%;
  max-width: var(--container-width);
  margin-inline: auto;
  padding-inline: 24px;
}

.container--narrow {
  max-width: 860px;
}

@media (min-width: 768px) {
  .container { padding-inline: 32px; }
}

@media (min-width: 1024px) {
  .container { padding-inline: 40px; }
}

.section {
  padding-block: var(--space-section);
}

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

@media (min-width: 700px) {
  .grid--2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1024px) {
  .grid--3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.divider {
  height: 1px;
  border: 0;
  background: var(--color-border);
  margin: 40px 0;
}

.skip-link {
  position: fixed;
  top: -100px;
  left: 16px;
  z-index: var(--z-skip);
  padding: 12px 20px;
  background: var(--color-accent);
  color: var(--color-primary-deep);
  font-weight: 600;
  font-size: var(--size-small);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  transition: top 200ms ease-out;
}

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

.site-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  z-index: var(--z-progress);
  pointer-events: none;
  background: transparent;
}

.site-progress__bar {
  display: block;
  width: 0%;
  height: 100%;
  background: linear-gradient(90deg, var(--color-accent), var(--color-accent-light));
}

.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-header);
}

.header-ticker {
  background: var(--color-primary-deep);
  border-bottom: 1px solid var(--color-border);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.header-ticker__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 32px;
  padding-top: 6px;
  padding-bottom: 6px;
}

.header-ticker__label {
  color: var(--color-text-muted);
  margin: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.header-ticker__meta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--color-accent-light);
  margin: 0;
  flex-shrink: 0;
}

.header-ticker__dot {
  width: 6px;
  height: 6px;
  background: var(--color-accent);
  animation: ticker-pulse 2.4s ease-in-out infinite;
}

@keyframes ticker-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

.header-main {
  position: relative;
  background-color: rgba(10, 31, 68, 0.96);
  background-image:
    linear-gradient(rgba(138, 155, 192, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(138, 155, 192, 0.05) 1px, transparent 1px);
  background-size: 48px 48px;
  border-bottom: 1px solid var(--color-border);
}

.header-main::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 140px;
  height: 3px;
  background: var(--color-accent);
  clip-path: polygon(0 0, calc(100% - 16px) 0, calc(100% - 8px) 100%, 0 100%);
  z-index: 0;
  pointer-events: none;
}

.header-main__inner {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 80px;
}

.site-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--color-white);
  flex-shrink: 0;
}

.site-brand:hover {
  color: var(--color-white);
}

.site-brand__mark {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  background: var(--color-accent);
  color: var(--color-primary-deep);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 26px;
  line-height: 1;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 9px), calc(100% - 9px) 100%, 0 100%);
}

.site-brand__text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.site-brand__name {
  font-family: var(--font-heading);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-white);
  margin: 0;
}

.site-brand__sub {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin: 2px 0 0;
}

.nav-toggle {
  display: none;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  padding: 10px 14px;
  background: transparent;
  border: 1px solid var(--color-border);
  color: var(--color-text);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  cursor: pointer;
  transition: border-color 200ms ease-out, color 200ms ease-out;
}

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

.nav-toggle__icon {
  display: inline-flex;
  flex-direction: column;
  gap: 4px;
  width: 18px;
}

.nav-toggle__bar {
  display: block;
  height: 2px;
  background: currentColor;
  transition: transform 200ms ease-out, opacity 200ms ease-out;
}

.nav-toggle__label {
  font: inherit;
}

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

.site-nav {
  display: flex;
  align-items: center;
}

.site-nav__list {
  display: flex;
  align-items: center;
  gap: 6px;
}

.site-nav__link {
  position: relative;
  display: inline-flex;
  align-items: baseline;
  gap: 7px;
  padding: 12px 14px;
  font-family: var(--font-body);
  font-size: var(--size-small);
  font-weight: 500;
  letter-spacing: 0.03em;
  color: var(--color-text);
  border: 1px solid transparent;
  transition: color 200ms ease-out, background-color 200ms ease-out, border-color 200ms ease-out;
}

.site-nav__link:hover {
  color: var(--color-white);
  border-color: var(--color-border);
  background-color: rgba(255, 107, 53, 0.06);
}

.site-nav__link::after {
  content: '';
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 3px;
  height: 2px;
  background: var(--color-accent);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 200ms ease-out;
}

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

.site-nav__link[aria-current="page"] {
  color: var(--color-accent);
  border-color: var(--color-border);
  background-color: rgba(255, 107, 53, 0.08);
}

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

.site-nav__index {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.06em;
  color: var(--color-text-muted);
  transition: color 200ms ease-out;
}

@media (max-width: 1023px) {
  .nav-toggle {
    display: inline-flex;
  }

  .site-nav {
    display: block;
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: min(320px, 86vw);
    padding: 88px 24px 32px;
    background-color: var(--color-primary-deep);
    border-left: 1px solid var(--color-border);
    box-shadow: -12px 0 24px rgba(6, 22, 48, 0.28);
    transform: translateX(100%);
    visibility: hidden;
    transition: transform 240ms ease-out, visibility 0s linear 240ms;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }

  .site-nav[data-open] {
    transform: translateX(0);
    visibility: visible;
    transition: transform 240ms ease-out;
  }

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

  .site-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
  }

  .site-nav__link {
    padding: 15px 12px;
    font-size: 15px;
    border-bottom: 1px solid var(--color-border);
  }

  .site-nav__link::after {
    left: 12px;
    right: auto;
    width: 36px;
  }
}

@media (max-width: 767px) {
  html {
    scroll-padding-top: 88px;
  }

  .header-ticker {
    display: none;
  }
}

@media (min-width: 1024px) {
  .nav-toggle {
    display: none;
  }
}

.site-footer {
  position: relative;
  margin-top: auto;
  background-color: var(--color-primary-deep);
  background-image:
    linear-gradient(rgba(138, 155, 192, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(138, 155, 192, 0.04) 1px, transparent 1px);
  background-size: 64px 64px;
  border-top: 1px solid var(--color-border);
}

.site-footer::before {
  content: '';
  position: absolute;
  top: -1px;
  left: 0;
  width: 160px;
  height: 3px;
  background: var(--color-accent);
  clip-path: polygon(0 0, calc(100% - 18px) 0, calc(100% - 9px) 100%, 0 100%);
  z-index: 0;
  pointer-events: none;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  padding-block: 64px;
}

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: 1.2fr 0.9fr 1fr;
    gap: 48px;
    padding-block: 80px;
  }
}

.footer-brand__name {
  font-family: var(--font-heading);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-white);
  margin: 0 0 14px;
}

.footer-brand__name::after {
  content: '';
  display: inline-block;
  width: 10px;
  height: 10px;
  margin-left: 8px;
  background: var(--color-accent);
  clip-path: polygon(0 0, 100% 0, 0 100%);
  vertical-align: baseline;
}

.footer-brand__desc {
  font-size: var(--size-small);
  line-height: 1.7;
  color: var(--color-text-muted);
  margin: 0 0 18px;
  max-width: 32em;
}

.footer-brand__trust {
  font-family: var(--font-mono);
  font-size: var(--size-tiny);
  line-height: 1.8;
  color: var(--color-text-muted);
  border-left: 2px solid var(--color-accent);
  padding-left: 12px;
  margin: 0;
}

.footer-links__title,
.footer-policy__title {
  font-family: var(--font-mono);
  font-size: var(--size-tiny);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-accent-light);
  margin: 0 0 18px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-border);
}

.footer-links ul,
.footer-policy ul {
  display: grid;
  gap: 10px;
  margin: 0;
}

.footer-links a,
.footer-policy a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: var(--size-small);
  color: var(--color-text);
  transition: color 200ms ease-out, transform 200ms ease-out;
}

.footer-links a::before,
.footer-policy a::before {
  content: '→';
  font-family: var(--font-mono);
  color: var(--color-text-muted);
  transition: color 200ms ease-out, transform 200ms ease-out;
}

.footer-links a:hover,
.footer-policy a:hover {
  color: var(--color-accent);
}

.footer-links a:hover::before,
.footer-policy a:hover::before {
  color: var(--color-accent);
  transform: translateX(3px);
}

.footer-policy__contact {
  margin: 20px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--color-border);
  font-size: var(--size-small);
  line-height: 1.9;
  color: var(--color-text-muted);
}

.footer-bottom {
  border-top: 1px solid var(--color-border);
  background-color: rgba(7, 22, 48, 0.6);
}

.footer-bottom__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px 24px;
  padding-top: 16px;
  padding-bottom: 16px;
}

.footer-bottom__copy,
.footer-bottom__contact,
.footer-bottom__addr,
.footer-bottom__meta {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--color-text-muted);
  margin: 0;
}

.footer-bottom a {
  color: var(--color-text-muted);
  transition: color 200ms ease-out;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 10px 22px;
  font-family: var(--font-body);
  font-size: var(--size-small);
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background-color 200ms ease-out, color 200ms ease-out, border-color 200ms ease-out, transform 200ms ease-out;
}

.btn-primary {
  background-color: var(--color-accent);
  color: var(--color-primary-deep);
}

.btn-primary:hover {
  background-color: var(--color-accent-light);
  color: var(--color-primary-deep);
  transform: translateY(-1px);
}

.btn-outline {
  background-color: transparent;
  border-color: var(--color-border);
  color: var(--color-text);
}

.btn-outline:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  background-color: rgba(255, 107, 53, 0.06);
}

.breadcrumb {
  font-family: var(--font-mono);
  font-size: var(--size-tiny);
  letter-spacing: 0.06em;
  color: var(--color-text-muted);
  margin: 0 0 32px;
}

.breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 0;
}

.breadcrumb li {
  display: inline-flex;
  align-items: center;
  margin: 0;
}

.breadcrumb li + li::before {
  content: '/';
  margin-right: 10px;
  color: var(--color-border);
}

.breadcrumb a {
  color: var(--color-accent);
}

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

.card {
  position: relative;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  padding: 24px;
}

.card::before {
  content: '';
  position: absolute;
  top: -1px;
  left: -1px;
  width: 14px;
  height: 14px;
  border-top: 2px solid var(--color-accent);
  border-left: 2px solid var(--color-accent);
}

.card__title {
  font-family: var(--font-heading);
  font-size: 20px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-white);
  margin: 0 0 10px;
}

.card__meta {
  font-family: var(--font-mono);
  font-size: var(--size-tiny);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin: 0 0 14px;
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 4px 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  line-height: 1.4;
  color: var(--color-accent-light);
  background-color: rgba(255, 107, 53, 0.08);
  border: 1px solid rgba(255, 107, 53, 0.35);
}

.tag::before {
  content: '';
  width: 5px;
  height: 5px;
  background: var(--color-accent);
  clip-path: polygon(0 0, 100% 0, 0 100%);
}

.index-label {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-accent-light);
}

.index-label::after {
  content: '';
  width: 44px;
  height: 4px;
  background: var(--color-accent);
  clip-path: polygon(0 0, calc(100% - 7px) 0, 100% 100%, 0 100%);
}

.section-heading {
  font-family: var(--font-heading);
  font-size: 28px;
  font-weight: 600;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  line-height: 1.25;
  color: var(--color-white);
  margin: 0 0 12px;
}

.media-frame {
  position: relative;
  display: block;
  width: 100%;
  overflow: hidden;
  border: 1px solid var(--color-border);
  background-color: var(--color-surface);
  background-image:
    linear-gradient(rgba(138, 155, 192, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(138, 155, 192, 0.08) 1px, transparent 1px);
  background-size: 24px 24px;
  aspect-ratio: 4 / 3;
}

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

.media-frame::before,
.media-frame::after {
  content: '';
  position: absolute;
  z-index: 1;
  pointer-events: none;
}

.media-frame::before {
  top: 10px;
  left: 10px;
  width: 18px;
  height: 18px;
  border-top: 2px solid var(--color-accent);
  border-left: 2px solid var(--color-accent);
}

.media-frame::after {
  right: 10px;
  bottom: 10px;
  width: 18px;
  height: 18px;
  border-right: 2px solid var(--color-accent);
  border-bottom: 2px solid var(--color-accent);
}

.hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(56px, 10vw, 128px);
}

.hero::before {
  content: '';
  position: absolute;
  top: 10%;
  right: -7%;
  width: 46%;
  height: 66%;
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-light));
  clip-path: polygon(0 0, 76% 0, 100% 100%, 24% 100%);
  opacity: 0.12;
  z-index: -1;
  pointer-events: none;
}

.hero__title {
  font-family: var(--font-heading);
  font-size: clamp(34px, 6vw, 64px);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--color-white);
  margin: 0;
  max-width: 13em;
}

.hero__lede {
  font-size: 18px;
  line-height: 1.7;
  color: var(--color-text-muted);
  max-width: 38em;
  margin: 18px 0 0;
}

.hero__meta {
  font-family: var(--font-mono);
  font-size: var(--size-tiny);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin: 24px 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
}

.hero__action {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  .site-progress {
    display: none;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}