:root {
  --color-bg: #081B2D;
  --color-bg-deep: #061522;
  --color-panel: #203448;
  --color-panel-2: #3D5062;
  --color-panel-dark: #13283A;
  --color-border: #8997A3;
  --color-border-soft: #596C7B;
  --color-accent: #FF8C1A;
  --color-accent-dark: #C95200;
  --color-text: #F2EDDF;
  --color-text-muted: #AEB8BD;
  --color-success: #55B68A;
  --color-warn: #F2C14E;
  --color-error: #E35D5B;
  --color-shadow: #020A10;
  --color-grid: rgba(137, 151, 163, 0.11);
  --color-sheen: rgba(242, 237, 223, 0.12);
  --color-accent-glow: rgba(255, 140, 26, 0.24);
  --color-overlay: rgba(2, 10, 16, 0.76);
  --color-clear: rgba(0, 0, 0, 0);
  --font-display: Inter, "Noto Sans SC", "Arial Black", "Microsoft YaHei", sans-serif;
  --font-body: Inter, "Noto Sans SC", "Noto Sans JP", "Noto Sans KR", "Microsoft YaHei", sans-serif;
  --font-mono: "JetBrains Mono", Consolas, "SFMono-Regular", monospace;
  --radius-none: 0;
  --border-heavy: 3px;
  --border-fine: 1px;
  --shadow-hard: 9px 9px 0 var(--color-shadow);
  --shadow-small: 5px 5px 0 var(--color-shadow);
  --page-width: 1440px;
  --content-width: 1180px;
  --article-width: 820px;
  --gutter: clamp(16px, 3.35vw, 52px);
  --header-height: 82px;
  --hero-height: 778px;
  --motion-fast: 150ms;
  --motion-base: 260ms;
  --motion-slow: 620ms;
}

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

html {
  min-width: 0;
  scroll-behavior: smooth;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
}

html.nav-open {
  overflow: hidden;
}

body {
  min-width: 0;
  min-height: 100vh;
  margin: 0;
  overflow-x: clip;
  background:
    linear-gradient(var(--color-grid) var(--border-fine), var(--color-clear) var(--border-fine)),
    linear-gradient(90deg, var(--color-grid) var(--border-fine), var(--color-clear) var(--border-fine)),
    var(--color-bg);
  background-size: 38px 38px;
  color: var(--color-text);
  font-size: 16px;
  line-height: 1.72;
  text-rendering: optimizeLegibility;
}

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

img {
  height: auto;
}

button,
input,
select,
textarea {
  color: inherit;
  font: inherit;
}

button,
a {
  -webkit-tap-highlight-color: var(--color-clear);
}

button {
  cursor: pointer;
}

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

p,
ul,
ol,
dl,
blockquote,
pre,
table {
  margin-top: 0;
}

ul,
ol {
  padding-left: 1.35em;
}

h1,
h2,
h3,
h4 {
  margin-top: 0;
  color: var(--color-text);
  font-family: var(--font-display);
  line-height: 1.08;
}

h1 {
  font-size: clamp(52px, 6vw, 84px);
  font-weight: 950;
  letter-spacing: -0.06em;
}

h2 {
  font-size: clamp(31px, 4vw, 48px);
  font-weight: 900;
  letter-spacing: -0.035em;
}

h3 {
  font-size: clamp(21px, 2.4vw, 28px);
  font-weight: 850;
}

small {
  color: var(--color-text-muted);
}

strong {
  color: var(--color-text);
  font-weight: 850;
}

code,
kbd,
samp,
pre {
  font-family: var(--font-mono);
}

code {
  overflow-wrap: anywhere;
}

:not(pre) > code {
  padding: 0.12em 0.34em;
  border: var(--border-fine) solid var(--color-border-soft);
  background: var(--color-panel-dark);
  color: var(--color-warn);
}

pre {
  max-width: 100%;
  padding: 18px;
  overflow-x: auto;
  overscroll-behavior-inline: contain;
  border: var(--border-heavy) solid var(--color-border);
  background: var(--color-bg-deep);
  box-shadow: var(--shadow-small);
  color: var(--color-text-muted);
  line-height: 1.7;
  white-space: pre;
}

pre code {
  overflow-wrap: normal;
}

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

:focus-visible {
  outline: var(--border-heavy) solid var(--color-accent);
  outline-offset: 3px;
}

[hidden] {
  display: none !important;
}

.wrap {
  width: min(100%, var(--content-width));
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.wrap-wide {
  width: min(100%, var(--page-width));
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.article-wrap {
  width: min(100%, calc(var(--article-width) + var(--gutter) + var(--gutter)));
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.wrap > *,
.wrap-wide > *,
.article-wrap > *,
.grid > *,
.flex-row > * {
  min-width: 0;
}

.section {
  position: relative;
  padding-top: clamp(64px, 8vw, 112px);
  padding-bottom: clamp(64px, 8vw, 112px);
  overflow-x: clip;
}

.section-compact {
  padding-top: 48px;
  padding-bottom: 48px;
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(240px, 430px);
  gap: 32px;
  align-items: end;
  margin-bottom: 38px;
  padding-bottom: 18px;
  border-bottom: var(--border-heavy) solid var(--color-border);
}

.section-heading p {
  margin: 0;
  color: var(--color-text-muted);
}

.kicker {
  display: block;
  margin-bottom: 10px;
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.grid {
  display: grid;
  gap: 18px;
}

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

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

.grid-4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.flex-row {
  display: flex;
  gap: 14px;
  align-items: center;
}

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

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

.panel,
.card {
  position: relative;
  min-width: 0;
  border: var(--border-heavy) solid var(--color-border);
  border-radius: var(--radius-none);
  background: var(--color-panel);
  box-shadow: var(--shadow-small);
}

.panel {
  padding: clamp(20px, 3vw, 34px);
}

.card {
  padding: 22px;
  transition:
    transform var(--motion-fast) ease,
    border-color var(--motion-fast) ease,
    box-shadow var(--motion-fast) ease;
}

.card:hover {
  transform: translate(-3px, -3px);
  border-color: var(--color-text);
  box-shadow: var(--shadow-hard);
}

.button,
.action {
  display: inline-flex;
  min-height: 53px;
  max-width: 100%;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 0 21px;
  border: var(--border-heavy) solid var(--color-text);
  border-radius: var(--radius-none);
  box-shadow: var(--shadow-small);
  font-size: 14px;
  font-weight: 850;
  line-height: 1.2;
  text-align: center;
  transition:
    transform var(--motion-fast) ease,
    box-shadow var(--motion-fast) ease,
    background-color var(--motion-fast) ease;
}

.button:hover,
.action:hover {
  transform: translate(-2px, -2px);
  box-shadow: 8px 8px 0 var(--color-shadow);
}

.button:active,
.action:active {
  transform: translate(3px, 3px);
  box-shadow: 2px 2px 0 var(--color-shadow);
}

.button-primary,
.action-primary {
  background: var(--color-accent);
  color: var(--color-bg-deep);
}

.button-primary:hover,
.action-primary:hover {
  background: var(--color-warn);
}

.button-secondary,
.action-secondary {
  background: var(--color-panel);
  color: var(--color-text);
}

.button-danger {
  border-color: var(--color-error);
  background: var(--color-panel-dark);
  color: var(--color-error);
}

.button[aria-disabled="true"],
.button:disabled {
  cursor: not-allowed;
  opacity: 0.5;
  transform: none;
  box-shadow: var(--shadow-small);
}

.button svg,
.action svg,
.icon {
  width: 19px;
  height: 19px;
  flex-shrink: 0;
}

.badge,
.tag,
.chip {
  display: inline-flex;
  max-width: 100%;
  min-height: 28px;
  align-items: center;
  gap: 7px;
  padding: 4px 9px;
  overflow: hidden;
  border: var(--border-fine) solid var(--color-border);
  background: var(--color-panel-dark);
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.03em;
  line-height: 1.35;
  white-space: nowrap;
}

.status-dot,
.tag-dot {
  width: 7px;
  height: 7px;
  flex-shrink: 0;
  background: var(--color-accent);
}

.status-dot.success {
  background: var(--color-success);
}

.status-dot.warn {
  background: var(--color-warn);
}

.status-dot.error {
  background: var(--color-error);
}

.table-wrap {
  max-width: 100%;
  overflow-x: auto;
  border: var(--border-heavy) solid var(--color-border);
  box-shadow: var(--shadow-small);
  -webkit-overflow-scrolling: touch;
}

.data-table {
  width: 100%;
  min-width: 680px;
  border-collapse: collapse;
  background: var(--color-panel-dark);
}

.data-table th,
.data-table td {
  padding: 14px 16px;
  border-right: var(--border-fine) solid var(--color-border-soft);
  border-bottom: var(--border-fine) solid var(--color-border-soft);
  text-align: left;
  vertical-align: top;
}

.data-table th {
  background: var(--color-panel);
  color: var(--color-text);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.05em;
}

.data-table td {
  color: var(--color-text-muted);
}

.prose {
  color: var(--color-text-muted);
}

.prose h2,
.prose h3 {
  margin-top: 2.2em;
  scroll-margin-top: calc(var(--header-height) + 22px);
}

.prose p,
.prose li {
  overflow-wrap: anywhere;
}

.prose a {
  color: var(--color-accent);
  text-decoration: underline;
  text-decoration-thickness: var(--border-fine);
  text-underline-offset: 3px;
}

.prose > .data-table {
  display: block;
  max-width: 100%;
  min-width: 0;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition:
    opacity var(--motion-slow) ease,
    transform var(--motion-slow) ease;
}

.reveal.shown {
  opacity: 1;
  transform: none;
}

.tilt,
.tilt-card {
  transform: rotate(-0.45deg);
}

.site-header {
  position: relative;
  z-index: 100;
  height: var(--header-height);
  border-bottom: var(--border-heavy) solid var(--color-border);
  background: var(--color-bg-deep);
}

.header-inner {
  display: flex;
  width: 100%;
  height: 100%;
  align-items: center;
  padding-inline: var(--gutter);
}

.brand {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 12px;
  margin-right: auto;
}

.brand-mark,
.brand img {
  width: 45px;
  height: 38px;
  flex-shrink: 0;
  filter: drop-shadow(3px 3px 0 var(--color-accent-dark));
}

.brand-copy {
  display: grid;
  gap: 2px;
}

.brand-name {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 900;
  line-height: 1;
}

.brand-domain {
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.primary-nav {
  display: flex;
  height: 100%;
  align-items: stretch;
  margin-left: 34px;
}

.nav-link {
  position: relative;
  display: inline-flex;
  min-width: 0;
  align-items: center;
  gap: 7px;
  padding: 0 13px;
  border-left: var(--border-fine) solid var(--color-border-soft);
  color: var(--color-text-muted);
  font-size: 13px;
  font-weight: 700;
  white-space: nowrap;
}

.nav-link:last-child {
  border-right: var(--border-fine) solid var(--color-border-soft);
}

.nav-link::after {
  position: absolute;
  right: 10px;
  bottom: 0;
  left: 10px;
  height: 4px;
  background: var(--color-accent);
  content: "";
  opacity: 0;
  transform: scaleX(0.4);
  transition:
    opacity var(--motion-fast) ease,
    transform var(--motion-fast) ease;
}

.nav-link:hover,
.nav-link[aria-current="page"] {
  background: var(--color-panel);
  color: var(--color-text);
}

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

.nav-icon {
  width: 15px;
  height: 15px;
  flex-shrink: 0;
  color: var(--color-border);
}

.header-tools {
  position: relative;
  display: flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 10px;
  margin-left: 18px;
}

.language-switch,
.menu-toggle {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  border: var(--border-heavy) solid var(--color-border);
  background: var(--color-panel);
  box-shadow: 4px 4px 0 var(--color-shadow);
  color: var(--color-text);
  font-size: 12px;
  font-weight: 700;
}

.language-switch {
  gap: 8px;
  padding: 0 13px;
}

.language-switch svg {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
  color: var(--color-accent);
}

.language-menu {
  position: absolute;
  top: calc(100% + 9px);
  right: 0;
  z-index: 8;
  width: 190px;
  padding: 6px;
  border: var(--border-heavy) solid var(--color-border);
  background: var(--color-bg-deep);
  box-shadow: var(--shadow-hard);
}

.language-menu a {
  display: flex;
  min-height: 44px;
  align-items: center;
  padding: 8px 11px;
  color: var(--color-text-muted);
  font-size: 13px;
}

.language-menu a:hover,
.language-menu a[aria-current="true"] {
  background: var(--color-panel);
  color: var(--color-accent);
}

.menu-toggle {
  display: none;
  min-width: 44px;
  padding: 0;
}

.menu-toggle-lines {
  position: relative;
  width: 20px;
  height: 14px;
  border-top: var(--border-heavy) solid var(--color-text);
  border-bottom: var(--border-heavy) solid var(--color-text);
}

.menu-toggle-lines::after {
  position: absolute;
  top: 4px;
  right: 0;
  left: 0;
  border-top: var(--border-heavy) solid var(--color-text);
  content: "";
}

.mobile-drawer {
  display: none;
}

.nav-veil {
  display: none;
}

.site-footer {
  position: relative;
  overflow-x: clip;
  border-top: var(--border-heavy) solid var(--color-border);
  background: var(--color-bg-deep);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.35fr 1fr 1.4fr 1fr;
  gap: 38px;
  padding-top: 58px;
  padding-bottom: 42px;
}

.footer-brand {
  display: grid;
  align-content: start;
  gap: 14px;
}

.footer-brand-line {
  display: flex;
  align-items: center;
  gap: 12px;
}

.footer-brand img {
  width: 52px;
  height: 44px;
  flex-shrink: 0;
  filter: drop-shadow(3px 3px 0 var(--color-accent-dark));
}

.footer-brand p {
  max-width: 360px;
  margin: 0;
  color: var(--color-text-muted);
  font-size: 13px;
}

.footer-title {
  display: block;
  margin-bottom: 14px;
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.footer-links {
  display: grid;
  gap: 8px;
}

.footer-links a {
  color: var(--color-text-muted);
  font-size: 13px;
}

.footer-links a:hover {
  color: var(--color-text);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.footer-keywords {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.footer-keywords a {
  display: inline-flex;
  max-width: 100%;
  min-height: 30px;
  align-items: center;
  padding: 4px 8px;
  overflow: hidden;
  border: var(--border-fine) solid var(--color-border-soft);
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 9px;
  line-height: 1.3;
}

.footer-bottom {
  display: flex;
  min-height: 64px;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  border-top: var(--border-fine) solid var(--color-border-soft);
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 10px;
}

.footer-legal {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

@media (max-width: 1120px) {
  .brand-domain {
    display: none;
  }

  .primary-nav {
    margin-left: 18px;
  }

  .nav-link {
    padding-inline: 9px;
    font-size: 12px;
  }

  .language-switch span {
    display: none;
  }
}

@media (max-width: 900px) {
  .site-header {
    height: 70px;
  }

  .header-inner {
    position: relative;
  }

  .primary-nav {
    display: none;
  }

  .header-tools {
    margin-left: auto;
  }

  .header-tools .language-switch {
    display: none;
  }

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

  .mobile-drawer {
    position: fixed;
    top: 70px;
    right: 0;
    left: 0;
    z-index: 4;
    display: none;
    max-height: calc(100dvh - 70px);
    padding: 10px var(--gutter) 24px;
    overflow-y: auto;
    overscroll-behavior: contain;
    border-bottom: var(--border-heavy) solid var(--color-border);
    background: var(--color-bg-deep);
    box-shadow: var(--shadow-hard);
  }

  .mobile-drawer.open {
    display: block;
  }

  .mobile-drawer a {
    display: flex;
    width: 100%;
    min-height: 48px;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    border-bottom: var(--border-fine) solid var(--color-border-soft);
    color: var(--color-text-muted);
    font-weight: 750;
  }

  .mobile-drawer a:hover,
  .mobile-drawer a[aria-current="page"],
  .mobile-drawer a[aria-current="true"] {
    background: var(--color-panel);
    color: var(--color-accent);
  }

  .mobile-language-title {
    display: block;
    margin: 18px 12px 5px;
    color: var(--color-border);
    font-family: var(--font-mono);
    font-size: 10px;
    letter-spacing: 0.1em;
  }

  .nav-veil {
    position: fixed;
    inset: 70px 0 0;
    z-index: 2;
    background: var(--color-overlay);
  }

  .nav-veil.open {
    display: block;
  }

  .section-heading {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .grid-4,
  .grid-3 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (max-width: 640px) {
  :root {
    --gutter: 16px;
  }

  body {
    font-size: 15px;
  }

  h1 {
    font-size: clamp(46px, 14vw, 62px);
  }

  h2 {
    font-size: clamp(29px, 9vw, 39px);
  }

  .wrap,
  .wrap-wide,
  .article-wrap {
    width: 100%;
    padding-inline: var(--gutter);
  }

  .grid-4,
  .grid-3,
  .grid-2 {
    grid-template-columns: minmax(0, 1fr);
  }

  .flex-row {
    flex-wrap: wrap;
  }

  .button,
  .action {
    width: 100%;
  }

  .tilt,
  .tilt-card {
    transform: none;
  }

  .brand {
    gap: 8px;
  }

  .brand-mark,
  .brand img {
    width: 39px;
    height: 34px;
  }

  .brand-name {
    font-size: 15px;
  }

  .footer-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 30px;
  }

  .footer-bottom {
    align-items: flex-start;
    flex-direction: column;
    padding-top: 18px;
    padding-bottom: 18px;
  }

  .panel,
  .card {
    padding: 18px;
  }

  .data-table {
    min-width: 600px;
  }
}

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

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

  .reveal {
    opacity: 1;
    transform: none;
  }
}