:root {
  --color-bg: #F9F3E8;
  --color-panel: #FFFDF8;
  --color-panel-soft: #F1E8D8;
  --color-border: #E2D6C2;
  --color-accent: #1466E8;
  --color-accent-dark: #0E4DB8;
  --color-text: #2A2118;
  --color-muted: #6E6255;
  --color-success: #2F8F5B;
  --color-warning: #D98E1F;
  --color-error: #C8402F;
  --color-white: #FFFFFF;
  --color-lamp: #DCEBFF;
  --color-flag-red: #D8342A;
  --color-flag-blue: #1F3F8F;
  --color-flag-uk: #1B3A86;
  --rgb-text: 42 33 24;
  --rgb-accent: 20 102 232;
  --rgb-white: 255 255 255;
  --font-display: 'Inter', 'Noto Sans SC', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans JP', 'Noto Sans KR', system-ui, sans-serif;
  --font-body: 'Inter', 'Noto Sans SC', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans JP', 'Noto Sans KR', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, 'SFMono-Regular', Menlo, Consolas, monospace;
  --radius: 8px;
  --radius-small: 6px;
  --radius-round: 999px;
  --shadow-card: 0 2px 6px rgb(var(--rgb-text) / .06), 0 26px 52px -18px rgb(var(--rgb-text) / .12);
  --shadow-menu: 0 2px 6px rgb(var(--rgb-text) / .06), 0 18px 40px -16px rgb(var(--rgb-text) / .12);
  --shadow-button: 0 1px 2px rgb(var(--rgb-accent) / .3), 0 10px 22px -10px rgb(var(--rgb-accent) / .55);
  --header-height: 72px;
  --content-width: 1280px;
  --reading-width: 760px;
  --gutter: 32px;
  --section-space: 104px;
  --focus-ring: 2px solid var(--color-accent);
  --transition-fast: 150ms ease;
}
*,
*::before,
*::after {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 16px);
  -webkit-text-size-adjust: 100%;
}
html.nav-open {
  overflow: hidden;
}
body {
  margin: 0;
  min-width: 320px;
  overflow-x: clip;
  background: var(--color-bg);
  color: var(--color-text);
  font: 400 16px/1.65 var(--font-body);
  -webkit-font-smoothing: antialiased;
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: .05;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='280' height='280'><filter id='g'><feTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0'/></filter><rect width='100%25' height='100%25' filter='url(%23g)'/></svg>");
  background-size: 280px 280px;
}
main,
section,
article,
aside,
header,
footer,
nav {
  min-width: 0;
}
img,
svg,
video {
  display: block;
  max-width: 100%;
}
img {
  height: auto;
}
button,
input,
select,
textarea {
  color: inherit;
  font: inherit;
}
button {
  cursor: pointer;
}
a {
  color: var(--color-accent);
  text-decoration: none;
}
a:hover {
  color: var(--color-accent-dark);
}
:where(a, button, summary, input, select, textarea, [role="tab"]):focus-visible {
  outline: var(--focus-ring);
  outline-offset: 3px;
  border-radius: var(--radius-small);
}
p,
ul,
ol,
blockquote,
figure {
  margin-top: 0;
}
ul[role="list"],
ol[role="list"],
.site-nav ul,
.site-footer ul {
  margin: 0;
  padding: 0;
  list-style: none;
}
h1,
h2,
h3,
h4 {
  color: var(--color-text);
  font-family: var(--font-display);
  text-wrap: balance;
}
h1 {
  margin: 0;
  font-size: clamp(52px, 5vw, 68px);
  font-weight: 900;
  line-height: 1.12;
  letter-spacing: -.02em;
}
h2 {
  margin: 0 0 20px;
  font-size: clamp(34px, 4vw, 48px);
  font-weight: 850;
  line-height: 1.18;
  letter-spacing: -.015em;
}
h3 {
  margin: 0 0 12px;
  font-size: clamp(22px, 2vw, 28px);
  font-weight: 750;
  line-height: 1.3;
}
code,
kbd,
pre,
samp {
  font-family: var(--font-mono);
}
code {
  overflow-wrap: anywhere;
}
pre {
  max-width: 100%;
  overflow-x: auto;
  padding: 20px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-panel-soft);
  color: var(--color-text);
  -webkit-overflow-scrolling: touch;
}
strong {
  font-weight: 650;
}
.no-break {
  white-space: nowrap;
}
.wrap {
  width: 100%;
  max-width: var(--content-width);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.reading-wrap {
  width: 100%;
  max-width: calc(var(--reading-width) + var(--gutter) * 2);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.section {
  padding-top: var(--section-space);
  padding-bottom: var(--section-space);
}
.section-soft {
  background: var(--color-panel-soft);
}
.section-heading {
  max-width: 720px;
  margin-bottom: 42px;
}
.section-heading p {
  margin: 0;
  color: var(--color-muted);
  font-size: 18px;
}
.kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 28px;
  margin-bottom: 14px;
  color: var(--color-accent);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .04em;
}
.kicker::before {
  content: "";
  width: 7px;
  height: 7px;
  flex: 0 0 7px;
  border-radius: 50%;
  background: var(--color-accent);
  box-shadow: 0 0 0 3px rgb(var(--rgb-accent) / .16);
}
.muted {
  color: var(--color-muted);
}
.accent-text {
  color: var(--color-accent);
}
.panel,
.card {
  min-width: 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-panel);
  box-shadow: var(--shadow-card);
}
.panel {
  padding: 28px;
}
.card {
  padding: 24px;
}
.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.button {
  min-width: 24px;
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 26px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-weight: 650;
  line-height: 1;
  text-align: center;
  transition: color var(--transition-fast), background var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
}
.button-primary {
  background: var(--color-accent);
  color: var(--color-white);
  box-shadow: var(--shadow-button);
}
.button-primary:hover {
  transform: translateY(-1px);
  background: var(--color-accent-dark);
  color: var(--color-white);
}
.button-secondary {
  border-color: var(--color-border);
  background: var(--color-panel);
  color: var(--color-text);
}
.button-secondary:hover {
  border-color: var(--color-muted);
  color: var(--color-text);
}
.button-small {
  min-height: 40px;
  padding: 10px 16px;
  font-size: 14px;
}
.button[aria-disabled="true"],
.button:disabled {
  opacity: .55;
  pointer-events: none;
}
.badge {
  max-width: 100%;
  min-height: 28px;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  overflow: hidden;
  padding: 5px 10px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-round);
  background: var(--color-panel);
  color: var(--color-muted);
  font-size: 13px;
  font-weight: 650;
  line-height: 1;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.badge-dot {
  width: 7px;
  height: 7px;
  flex: 0 0 7px;
  border-radius: 50%;
  background: var(--color-success);
}
.badge-accent {
  border-color: rgb(var(--rgb-accent) / .24);
  background: rgb(var(--rgb-accent) / .08);
  color: var(--color-accent);
}
.reveal {
  transition: opacity .62s ease, transform .62s ease;
}
.reveal.pending {
  opacity: 0;
  transform: translateY(16px);
}
.reveal.shown {
  opacity: 1;
  transform: none;
}
.site-head {
  position: relative;
  z-index: 40;
  height: var(--header-height);
}
.site-head-inner {
  height: 100%;
  display: flex;
  align-items: center;
  gap: 28px;
}
.brand {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
  color: var(--color-text);
}
.brand:hover {
  color: var(--color-text);
}
.brand-logo {
  width: 28px;
  height: 28px;
  flex: 0 0 28px;
}
.brand-name {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 900;
  line-height: 1;
  letter-spacing: .02em;
}
.brand-local {
  color: var(--color-muted);
  font-size: 14px;
  font-weight: 500;
}
.desktop-nav {
  margin-left: auto;
}
.desktop-nav-list {
  display: flex;
  align-items: center;
  gap: 4px;
}
.nav-link,
.more-toggle {
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
  padding: 8px 12px;
  border: 0;
  border-radius: var(--radius-small);
  background: transparent;
  color: var(--color-text);
  font-size: 15px;
  font-weight: 550;
}
.nav-link:hover,
.more-toggle:hover {
  background: var(--color-panel-soft);
  color: var(--color-text);
}
.nav-link[aria-current="page"] {
  color: var(--color-accent);
}
.nav-more {
  position: relative;
}
.chevron {
  width: 12px;
  height: 12px;
  flex: 0 0 12px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.nav-menu {
  position: absolute;
  top: calc(100% + 10px);
  left: 50%;
  min-width: 176px;
  visibility: hidden;
  opacity: 0;
  transform: translate(-50%, 6px);
  padding: 6px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-panel);
  box-shadow: var(--shadow-menu);
  transition: opacity var(--transition-fast), transform var(--transition-fast), visibility var(--transition-fast);
}
.nav-menu::before {
  content: "";
  position: absolute;
  inset: -12px 0 auto;
  height: 12px;
}
.nav-more:hover .nav-menu,
.nav-more:focus-within .nav-menu {
  visibility: visible;
  opacity: 1;
  transform: translate(-50%, 0);
}
.nav-menu .nav-link {
  width: 100%;
  justify-content: flex-start;
}
.header-tools {
  display: flex;
  align-items: center;
  gap: 8px;
  padding-left: 16px;
  border-left: 1px solid var(--color-border);
}
.language-picker {
  position: relative;
}
.language-toggle {
  min-width: 44px;
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
  padding: 8px 10px;
  border: 0;
  border-radius: var(--radius-small);
  background: transparent;
  color: var(--color-muted);
  font-size: 14px;
}
.language-toggle:hover {
  background: var(--color-panel-soft);
  color: var(--color-text);
}
.language-menu {
  position: absolute;
  top: calc(100% + 9px);
  right: 0;
  z-index: 45;
  min-width: 150px;
  display: none;
  padding: 6px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-panel);
  box-shadow: var(--shadow-menu);
}
.language-picker.is-open .language-menu {
  display: block;
}
.language-menu a {
  min-height: 40px;
  display: flex;
  align-items: center;
  padding: 8px 10px;
  border-radius: var(--radius-small);
  color: var(--color-text);
  font-size: 14px;
}
.language-menu a:hover,
.language-menu a[aria-current="true"] {
  background: var(--color-panel-soft);
  color: var(--color-accent);
}
.login-link {
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 9px 18px;
  border: 1.5px solid var(--color-accent);
  border-radius: var(--radius);
  background: var(--color-panel);
  color: var(--color-accent);
  font-size: 14px;
  font-weight: 650;
}
.login-link:hover {
  background: var(--color-accent);
  color: var(--color-white);
}
.menu-toggle {
  width: 44px;
  min-width: 44px;
  height: 44px;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 0;
  border: 0;
  border-radius: var(--radius-small);
  background: transparent;
}
.menu-toggle-lines,
.menu-toggle-lines::before,
.menu-toggle-lines::after {
  width: 20px;
  height: 2px;
  display: block;
  border-radius: var(--radius-round);
  background: var(--color-text);
}
.menu-toggle-lines {
  position: relative;
}
.menu-toggle-lines::before,
.menu-toggle-lines::after {
  content: "";
  position: absolute;
  left: 0;
}
.menu-toggle-lines::before {
  top: -6px;
}
.menu-toggle-lines::after {
  top: 6px;
}
.mobile-nav {
  display: none;
}
.nav-veil {
  display: none;
}
.site-footer {
  position: relative;
  overflow-x: clip;
  padding-top: 68px;
  padding-bottom: 28px;
  border-top: 1px solid var(--color-border);
  background: var(--color-panel-soft);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.25fr 1fr 1fr .8fr;
  gap: 48px;
}
.footer-brand p {
  max-width: 330px;
  margin: 18px 0 0;
  color: var(--color-muted);
}
.footer-title {
  margin: 0 0 14px;
  font-size: 13px;
  font-weight: 750;
  letter-spacing: .05em;
}
.footer-links {
  display: grid;
  gap: 6px;
}
.footer-links a {
  min-height: 30px;
  display: inline-flex;
  align-items: center;
  color: var(--color-muted);
  font-size: 14px;
}
.footer-links a:hover {
  color: var(--color-accent);
}
.footer-language-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 12px;
}
.footer-language-list a {
  min-height: 30px;
  display: inline-flex;
  align-items: center;
  color: var(--color-muted);
  font-size: 13px;
}
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-top: 48px;
  padding-top: 22px;
  border-top: 1px solid var(--color-border);
  color: var(--color-muted);
  font-size: 13px;
}
.footer-legal {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}
.footer-legal a {
  color: var(--color-muted);
}
@media (max-width: 1040px) {
  .desktop-nav .nav-link:not(.nav-keep) {
    display: none;
  }
  .footer-grid {
    grid-template-columns: 1.2fr 1fr 1fr;
  }
  .footer-language {
    grid-column: 2 / -1;
  }
}
@media (max-width: 768px) {
  :root {
    --gutter: 20px;
    --section-space: 76px;
  }
  h1 {
    font-size: clamp(32px, 10vw, 40px);
  }
  h2 {
    font-size: clamp(29px, 8vw, 38px);
  }
  .desktop-nav,
  .language-picker {
    display: none;
  }
  .header-tools {
    margin-left: auto;
    padding-left: 0;
    border-left: 0;
  }
  .menu-toggle {
    display: inline-flex;
  }
  .mobile-nav {
    position: absolute;
    top: var(--header-height);
    left: 0;
    right: 0;
    z-index: 44;
    max-height: calc(100dvh - var(--header-height));
    overflow-y: auto;
    overscroll-behavior: contain;
    padding: 10px var(--gutter) 22px;
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
    background: var(--color-panel);
    box-shadow: var(--shadow-menu);
  }
  .mobile-nav.is-open {
    display: block;
  }
  .mobile-nav ul {
    margin: 0;
    padding: 0;
    list-style: none;
  }
  .mobile-nav a {
    width: 100%;
    min-height: 46px;
    display: flex;
    align-items: center;
    padding: 11px 10px;
    border-radius: var(--radius-small);
    color: var(--color-text);
  }
  .mobile-nav a:hover,
  .mobile-nav a[aria-current="page"] {
    background: var(--color-panel-soft);
    color: var(--color-accent);
  }
  .mobile-language {
    margin-top: 10px;
    padding-top: 10px;
    border-top: 1px solid var(--color-border);
  }
  .nav-veil {
    position: fixed;
    inset: var(--header-height) 0 0;
    z-index: 35;
    border: 0;
    background: rgb(var(--rgb-text) / .18);
  }
  .nav-veil.is-open {
    display: block;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 34px 24px;
  }
  .footer-brand {
    grid-column: 1 / -1;
  }
  .footer-language {
    grid-column: auto;
  }
}
@media (max-width: 640px) {
  :root {
    --gutter: 16px;
  }
  .wrap,
  .reading-wrap {
    padding-inline: var(--gutter);
  }
  .panel,
  .card {
    padding: 20px;
  }
  .button-row {
    align-items: stretch;
  }
  .button-row .button {
    flex: 1 1 auto;
  }
  .tilt-card,
  [data-tilt-card] {
    transform: none;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .footer-language {
    grid-column: auto;
  }
  .footer-bottom {
    align-items: flex-start;
    flex-direction: column;
  }
}
@media (max-width: 390px) {
  .brand-local {
    display: none;
  }
  .login-link {
    padding-inline: 12px;
  }
  .site-head-inner {
    gap: 10px;
  }
}
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    scroll-behavior: auto;
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
  .reveal,
  .reveal.pending {
    opacity: 1;
    transform: none;
  }
}