:root {
  --rail-width: 220px;
  --font-heading: 'Impact', 'Arial Black', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --font-body: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
  --bg: #0A0E17;
  --surface: #131A26;
  --surface-raised: #0C1220;
  --green: #00E88F;
  --blue: #00B4FF;
  --orange: #FF5A36;
  --line: #1C2534;
  --text: #F5F7FA;
  --muted: #9AA7B8;
  --success: #34D399;
  --warn: #FBBF24;
}

* {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  min-height: 100vh;
  background-color: var(--bg);
  background-image:
    linear-gradient(rgba(0, 180, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 180, 255, 0.04) 1px, transparent 1px);
  background-size: 44px 44px;
  background-attachment: fixed;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
}

body.nav-lock {
  overflow: hidden;
}

main,
header,
footer,
nav,
section {
  display: block;
}

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

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

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

a:hover {
  color: var(--green);
}

:focus-visible {
  outline: 2px solid var(--green);
  outline-offset: 3px;
}

h1,
h2,
h3 {
  font-family: var(--font-heading);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

h1 {
  font-size: clamp(2.25rem, 6vw, 4.5rem);
  text-transform: uppercase;
  transform: skewX(-6deg);
}

.site-main {
  min-height: 70vh;
  padding: 2rem 1rem 4rem;
}

.container {
  width: min(1200px, 100% - 2rem);
  margin-inline: auto;
}

.page-heading {
  margin-bottom: 2rem;
  border-left: 4px solid var(--green);
  padding-left: 1rem;
}

.page-heading__eyebrow {
  display: block;
  margin-bottom: 0.25rem;
  color: var(--blue);
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.page-heading__title {
  font-size: clamp(2rem, 5vw, 3.75rem);
  text-transform: uppercase;
  transform: skewX(-6deg);
}

.page-heading__lead {
  max-width: 60ch;
  margin-top: 0.5rem;
  color: var(--muted);
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
  font-size: 0.8rem;
  color: var(--muted);
}

.breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.breadcrumb__link {
  color: var(--blue);
}

.breadcrumb__link:hover {
  color: var(--green);
}

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

.grid {
  display: grid;
  gap: 1.25rem;
}

.card {
  position: relative;
  overflow: hidden;
  padding: 1.25rem;
  border: 1px solid var(--line);
  background: var(--surface);
  transition: border-color 0.25s ease, transform 0.25s ease;
}

.card::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 3px;
  background: var(--blue);
  opacity: 0;
  transition: opacity 0.25s ease;
}

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

.card:hover {
  border-color: var(--blue);
  transform: translateY(-2px);
}

.card:hover::before {
  opacity: 1;
}

.card:hover::after {
  transform: scaleX(1);
}

.card__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 0.4rem;
  color: var(--muted);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.card__title {
  margin: 0.5rem 0;
  font-size: 1.2rem;
  text-transform: uppercase;
}

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

.card__footer {
  margin-top: 1rem;
}

.media-frame {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  background:
    linear-gradient(135deg, rgba(0, 180, 255, 0.12), rgba(0, 232, 143, 0.06)),
    var(--surface);
}

.media-frame::before {
  content: "";
  display: block;
  padding-top: 56.25%;
}

.media-frame--portrait::before {
  padding-top: 125%;
}

.media-frame--poster::before {
  padding-top: 145%;
}

.media-frame__placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--muted);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.65rem 1.1rem;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--text);
  font-family: var(--font-heading);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
  transform: skewX(-6deg);
  transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

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

.btn--primary:hover {
  border-color: var(--blue);
  background: var(--blue);
  color: var(--bg);
  transform: translateX(2px) skewX(-6deg);
}

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

.btn--ghost:hover {
  background: rgba(0, 180, 255, 0.12);
  color: var(--blue);
}

.btn--block {
  width: 100%;
}

.skip-link {
  position: fixed;
  top: 0.75rem;
  left: 0.75rem;
  z-index: 600;
  padding: 0.5rem 0.8rem;
  border: 1px solid var(--green);
  background: var(--green);
  color: var(--bg);
  font-family: var(--font-heading);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transform: translateY(-220%);
  transition: transform 0.18s ease;
}

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

.site-header {
  z-index: 200;
  background: var(--surface-raised);
}

.site-header__progress {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 500;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--green), var(--blue));
  pointer-events: none;
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.75rem 1rem;
}

.site-header__footer {
  display: none;
}

.site-header__status {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--muted);
  font-size: 0.75rem;
  letter-spacing: 0.02em;
}

.site-header__dot {
  width: 6px;
  height: 6px;
  background: var(--success);
  box-shadow: 0 0 8px var(--success);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
}

.brand__mark {
  width: 1.5rem;
  height: 1.5rem;
  flex: none;
  background: var(--green);
  box-shadow: 0 0 18px rgba(0, 232, 143, 0.35);
  transform: skewX(-8deg);
}

.brand__text {
  display: grid;
  gap: 0.05rem;
  line-height: 1;
}

.brand__name {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 900;
  letter-spacing: 0.02em;
  line-height: 1;
  color: var(--text);
  text-transform: uppercase;
}

.brand__short {
  color: var(--muted);
  font-size: 0.62rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.brand__badge {
  padding: 0.15em 0.5em;
  border: 1px solid var(--orange);
  color: var(--orange);
  font-family: var(--font-heading);
  font-size: 0.62rem;
  font-weight: 900;
  line-height: 1.2;
  transform: skewX(-8deg);
}

.brand--footer .brand__name {
  font-size: 1.4rem;
}

.nav-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.45rem 0.65rem;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--text);
  font-family: var(--font-heading);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
}

.nav-toggle__label {
  color: var(--muted);
}

.nav-toggle__icon {
  position: relative;
  width: 1.1rem;
  height: 0.8rem;
  border-top: 2px solid var(--green);
  border-bottom: 2px solid var(--green);
}

.nav-toggle__icon::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--green);
  transform: translateY(-50%);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__icon {
  border-color: var(--blue);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__icon::after {
  background: var(--blue);
}

.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 300;
  width: min(84vw, 320px);
  height: 100vh;
  padding: 6rem 1.25rem 2rem;
  overflow-y: auto;
  border-right: 1px solid var(--line);
  background: var(--surface-raised);
  transform: translateX(-105%);
  transition: transform 0.26s ease;
}

.site-nav[data-open] {
  transform: translateX(0);
  box-shadow: 20px 0 40px rgba(0, 0, 0, 0.4);
}

.site-nav__list {
  display: grid;
  gap: 0.25rem;
}

.site-nav__link {
  display: flex;
  align-items: center;
  padding: 0.7rem 0.6rem;
  border-left: 3px solid transparent;
  color: var(--text);
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  line-height: 1.2;
  text-transform: uppercase;
  transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.site-nav__link:hover {
  border-left-color: var(--green);
  background: rgba(0, 232, 143, 0.07);
  color: var(--green);
}

.site-nav__link[aria-current="page"] {
  border-left-color: var(--green);
  background: rgba(0, 232, 143, 0.1);
  color: var(--green);
}

.site-footer {
  position: relative;
  border-top: 1px solid var(--line);
  background: #0B111C;
}

.site-footer::before {
  content: "";
  display: block;
  height: 2px;
  background: linear-gradient(90deg, var(--green), var(--blue) 45%, var(--orange));
  opacity: 0.85;
}

.site-footer__inner {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr;
  gap: 2rem;
  max-width: 1200px;
  margin-inline: auto;
  padding: 3rem 1.5rem 2rem;
}

.site-footer__block--brand .brand {
  margin-bottom: 1rem;
}

.site-footer__note {
  max-width: 36rem;
  color: var(--muted);
  font-size: 0.85rem;
}

.site-footer__heading {
  margin-bottom: 1rem;
  color: var(--green);
  font-family: var(--font-heading);
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.site-footer__text,
.site-footer__address {
  margin-bottom: 0.4rem;
  color: var(--muted);
  font-size: 0.85rem;
}

.site-footer__list {
  display: grid;
  gap: 0.6rem;
}

.site-footer__link {
  border-bottom: 1px solid transparent;
  color: var(--text);
  font-size: 0.9rem;
}

.site-footer__link:hover {
  border-bottom-color: var(--blue);
  color: var(--blue);
}

.site-footer__bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  max-width: 1200px;
  margin-inline: auto;
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.78rem;
}

.site-footer__icp {
  letter-spacing: 0.04em;
}

@media (min-width: 640px) {
  .grid--2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 1023px) {
  .site-header {
    position: sticky;
    top: 0;
    border-bottom: 1px solid var(--line);
    backdrop-filter: blur(8px);
  }

  .site-header__inner {
    padding: 0.75rem 1rem;
  }

  .brand__short {
    display: none;
  }

  .site-header__footer {
    display: none;
  }
}

@media (min-width: 1024px) {
  body {
    padding-left: var(--rail-width);
  }

  .site-header {
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    width: var(--rail-width);
    height: 100vh;
    border-right: 1px solid var(--line);
  }

  .site-header__inner {
    display: flex;
    flex-direction: column;
    height: 100%;
    gap: 2rem;
    padding: 2rem 1.25rem 1.5rem;
  }

  .site-header__footer {
    display: grid;
    gap: 1rem;
    margin-top: auto;
  }

  .site-nav {
    position: static;
    z-index: auto;
    display: block;
    width: auto;
    height: auto;
    flex: 1;
    padding: 0;
    overflow: visible;
    border: 0;
    background: transparent;
    transform: none;
    box-shadow: none;
  }

  .site-nav__list {
    gap: 0.5rem;
  }

  .site-nav__link {
    font-size: 0.95rem;
  }

  .nav-toggle {
    display: none;
  }

  .grid--2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .grid--3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 760px) {
  .site-footer__inner {
    grid-template-columns: 1fr;
  }

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

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}