:root {
  --purple: #5413b7;
  --lilac: #8c43f5;
  --cyan: #1cbced;
  --page-bg: #fff;
  --ink: #20102f;
  --muted: #716879;
  --line: #e7e0ef;
  --header-bg: #fff;
  --accent: var(--purple);
  font-family: Gilroy, "Trebuchet MS", Arial, sans-serif;
  color: var(--ink);
  background: var(--page-bg);
  font-synthesis: none;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 32px; }
body { margin: 0; background: var(--page-bg); line-height: 1.5; -webkit-font-smoothing: antialiased; }
button, input, select { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
button { cursor: pointer; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; height: auto; }
h1, h2, h3, p { margin: 0; }
button, a { touch-action: manipulation; }
:focus-visible { outline: 3px solid var(--cyan); outline-offset: 5px; }
.container { width: min(100%, 1304px); margin-inline: auto; padding-inline: 32px; }
.skip-link { position: absolute; top: -100px; left: 16px; z-index: 100; padding: 12px 20px; color: #fff; background: #5413b7; border-radius: 6px; }
.skip-link:focus { top: 12px; }
.concept-bar { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 48px; padding: 6px max(24px, calc((100vw - 1240px) / 2)); color: #d5cee2; background: #21172d; font-family: Arial, sans-serif; font-size: 12px; letter-spacing: .02em; }
.concept-home { display: flex; align-items: center; min-height: 36px; white-space: nowrap; }
.concept-home::before { content: "↗"; margin-right: 10px; color: #1cbced; font-size: 17px; }
.concept-nav { display: flex; align-items: center; gap: 4px; }
.concept-nav a { display: flex; align-items: center; min-height: 36px; padding: 6px 16px; border: 1px solid transparent; border-radius: 5px; white-space: nowrap; }
.concept-nav a:hover { color: white; background: #3a2b49; }
.concept-nav a[aria-current="page"] { color: white; background: #4b3562; border-color: #72568a; }
body:is([data-concept="04"],[data-concept="05"],[data-concept="06"]) .concept-bar { color:#5413b7; background:#fff; border-bottom:1px solid #eee8f6; }
body:is([data-concept="04"],[data-concept="05"],[data-concept="06"]) .concept-nav a:hover { color:#5413b7; background:#f4fcff; }
body:is([data-concept="04"],[data-concept="05"],[data-concept="06"]) .concept-nav a[aria-current="page"] { color:#5413b7; background:#fff; border-color:#1cbced; }
.site-header { position: relative; z-index: 10; background: var(--header-bg); }
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 32px; min-height: 100px; }
.logo { flex: 0 0 auto; }
.logo img { width: 130px; height: 44px; object-fit: contain; }
.main-nav { display: flex; align-items: center; justify-content: center; gap: 28px; margin-left: auto; font-size: 13px; font-weight: 600; }
.main-nav a { display: flex; align-items: center; min-height: 44px; }
.main-nav a:hover { text-decoration: underline; text-underline-offset: 5px; }
.header-action { display: inline-flex; align-items: center; justify-content: center; gap: 9px; min-height: 44px; padding: 10px 20px; border: 1px solid currentColor; border-radius: 99px; font-size: 13px; font-weight: 700; white-space: nowrap; }
.header-action:hover { opacity: .8; }
.menu-button { display: none; min-height: 44px; padding: 8px 12px; border: 1px solid currentColor; border-radius: 8px; color: inherit; background: transparent; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 14px; min-height: 48px; font-weight: 700; }
[data-icon] { display: inline-flex; align-items: center; justify-content: center; flex: 0 0 auto; }
[data-icon] svg { display: block; width: 22px; height: 22px; }
@media (max-width: 850px) {
  .header-inner { min-height: 82px; gap: 16px; }
  .menu-button { display: inline-flex; align-items: center; margin-left: auto; }
  .header-action { display: none; }
  .main-nav { display: none; position: absolute; top: 100%; left: 0; right: 0; flex-direction: column; align-items: stretch; gap: 4px; padding: 16px 24px; border-bottom: 1px solid var(--line); background: var(--header-bg); margin: 0; box-shadow: 0 12px 24px #13082a12; }
  .main-nav.is-open { display: flex; }
  .main-nav a { min-height: 48px; padding: 4px 8px; }
}
@media (max-width: 600px) {
  .container { padding-inline: 22px; }
  .concept-bar { justify-content: center; padding: 6px 8px; gap: 0; }
  .concept-home { display: none; }
  .concept-nav { gap: 2px; }
  .concept-nav a { padding-inline: 11px; font-size: 11px; }
  body:is([data-concept="04"],[data-concept="05"],[data-concept="06"]) .concept-home { display:flex; width:30px; min-width:30px; overflow:hidden; font-size:0; }
  body:is([data-concept="04"],[data-concept="05"],[data-concept="06"]) .concept-home::before { margin-right:0; font-size:18px; }
  body:is([data-concept="04"],[data-concept="05"],[data-concept="06"]) .concept-nav a { padding-inline:8px; font-size:10px; }
  .logo img { width: 130px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; animation-iteration-count: 1 !important; }
}