:root {
  color-scheme:light;
  --ink:#1c2935;
  --muted:#536474;
  --line:#d7e0e7;
  --accent:#176c62;
  --soft:#eaf5f1;
  --paper:#f5f7fa;
  font-family:"Segoe UI","Yu Gothic UI",Meiryo,system-ui,sans-serif;
  line-height:1.75;
  color:var(--ink);
  background:var(--paper)
}

* {
  box-sizing:border-box
}
body {
  margin:0;
  background:
    linear-gradient(90deg,rgba(0,143,138,.045) 1px,transparent 1px),
    linear-gradient(180deg,rgba(91,76,196,.035) 1px,transparent 1px),
    var(--paper);
  background-size:32px 32px
}
a {
  color:var(--accent);
  text-underline-offset:.2em
}
a:hover {
  text-decoration-thickness:2px
}
a,button {
  touch-action:manipulation
}
:focus-visible {
  outline:3px solid #b75b00;
  outline-offset:4px
}
button {
  font:inherit
}
h1,h2,h3 {
  line-height:1.4;
  overflow-wrap:anywhere
}
h1 {
  font-size:clamp(1.8rem,4.5vw,3.25rem);
  margin:.15em 0 .35em
}
h2 {
  font-size:1.5rem;
  margin:0 0 1rem
}
h3 {
  font-size:1.1rem;
  margin:.5rem 0
}
p {
  margin:0 0 1rem
}
p:last-child {
  margin-bottom:0
}
ul,ol {
  padding-left:1.6em
}
.container {
  width:min(1120px,calc(100% - 48px));
  margin-inline:auto
}
.site-header {
  color:#fff;
  background:#111d28;
  border-bottom:5px solid #f0a629
}
.home-page .site-header {
  background:
    linear-gradient(105deg,rgba(12,24,35,.97) 0%,rgba(12,24,35,.9) 45%,rgba(0,100,103,.64) 100%),
    url("../images/yuhex1.jpg") center 42% / cover
}
.site-header .primary-nav {
  border-color:rgba(255,255,255,.2)
}
.site-header .primary-nav a {
  color:#ecfbf8
}
.site-header .language-toggle {
  color:#fff;
  background:rgba(255,255,255,.08);
  border-color:rgba(255,255,255,.35)
}
.site-header .eyebrow {
  color:#88e5d7
}
.site-header .lead {
  color:#e3edf2
}
.home-page .heading-row {
  padding:38px 0 42px
}
.home-page h1 {
  font-size:clamp(4rem,14vw,9.4rem);
  line-height:1;
  margin:.1em 0 .2em
}
.primary-nav {
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px 24px;
  padding:20px 0;
  border-bottom:1px solid var(--line)
}
.primary-nav a {
  font-weight:650;
  text-decoration:none
}
.primary-nav a[aria-current] {
  text-decoration:underline;
  text-decoration-thickness:3px
}
.language-toggle {
  display:none;
  margin-left:auto;
  min-height:44px;
  border:1px solid var(--line);
  border-radius:6px;
  padding:6px 14px;
  color:var(--ink);
  background:#fff;
  cursor:pointer
}
.has-js .language-toggle {
  display:block
}
.heading-row {
  display:flex;
  gap:24px;
  align-items:center;
  padding:36px 0
}
.brand-icon {
  width:72px;
  height:72px;
  flex-shrink:0;
  border-radius:16px;
  box-shadow:0 8px 24px rgba(0,0,0,.24)
}
.eyebrow {
  font-weight:750;
  font-size:.88rem;
  color:var(--accent);
  margin:0 0 .5rem
}
.lead {
  max-width:850px;
  color:var(--muted);
  font-size:1.08rem
}
main.container {
  padding-top:24px;
  padding-bottom:36px
}
.section-nav {
  display:flex;
  flex-wrap:wrap;
  gap:8px 20px;
  padding:0 0 24px
}
.section-nav a {
  font-size:.92rem
}
section,.guide {
  background:#fff;
  border:1px solid var(--line);
  border-radius:12px;
  margin-bottom:24px;
  padding:28px;
  scroll-margin-top:20px;
  box-shadow:0 6px 22px rgba(28,41,53,.045)
}
section>h2,.guide>h2 {
  border-left:4px solid var(--accent);
  padding-left:14px
}
.edition-grid {
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:20px;
  margin:22px 0
}
.edition-card {
  min-width:0;
  padding:24px;
  background:var(--soft);
  border:1px solid var(--line);
  border-top:4px solid var(--accent);
  border-radius:8px;
  background:linear-gradient(135deg,var(--soft),#fff)
}
.edition-free {
  --accent:#176c62;
  --soft:#eaf5f1
}
.edition-store {
  --accent:#4a51a5;
  --soft:#eff0fb
}
.edition-card h3 {
  font-size:1.2rem;
  margin:0 0 12px
}
.button {
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:44px;
  padding:10px 18px;
  border-radius:6px;
  background:var(--accent);
  color:#fff;
  text-decoration:none;
  font-weight:650
}
.button:hover {
  filter:brightness(.9)
}
.detail-link {
  display:block;
  margin-top:16px
}
.version {
  color:var(--muted);
  font-size:.92rem
}
.table-scroll {
  overflow-x:auto;
  border:1px solid var(--line);
  border-radius:8px;
  margin:16px 0
}
table {
  width:100%;
  border-collapse:collapse;
  text-align:left
}
section[id$="-edition"] table th {
  width:7rem;
  min-width:7rem;
  white-space:nowrap;
  overflow-wrap:normal
}
th,td {
  padding:12px 16px;
  border-bottom:1px solid var(--line);
  vertical-align:top;
  overflow-wrap:anywhere
}
th {
  background:var(--soft);
  font-weight:650
}
thead th {
  background:#edf1f5;
  color:var(--ink)
}
tr:last-child>th,tr:last-child>td {
  border-bottom:0
}
.edition-comparison {
  min-width:620px
}
.edition-comparison th:first-child {
  width:32%
}
.feature-grid,.link-grid {
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:16px
}
.feature-item,.link-card {
  padding:18px;
  border:1px solid var(--line);
  border-radius:8px
}
.feature-item strong {
  display:block;
  margin-bottom:6px
}
.screenshots {
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:16px
}
figure {
  margin:0;
  border:1px solid var(--line);
  border-radius:8px;
  overflow:hidden
}
figure img {
  display:block;
  width:100%;
  height:auto
}
figcaption {
  padding:12px;
  font-size:.9rem;
  color:var(--muted)
}
.note {
  color:var(--muted);
  background:#f3f5f7;
  padding:16px;
  border-radius:6px;
  margin:16px 0
}
.status {
  display:inline-block;
  font-size:.9rem;
  font-weight:700;
  background:#fff1db;
  color:#794900;
  border-radius:5px;
  padding:4px 12px
}
.legacy-links {
  font-size:.85rem;
  border-top:1px solid var(--line);
  padding-top:16px;
  margin-top:20px;
  line-height:2
}
.legacy-links div {
  scroll-margin-top:20px
}
.footer {
  padding-bottom:32px;
  color:var(--muted);
  font-size:.9rem
}
code {
  background:#edf1f5;
  border-radius:4px;
  padding:2px 5px;
  font: .94em Consolas,monospace;
  overflow-wrap:anywhere
}
pre {
  overflow-x:auto;
  padding:20px;
  background:#edf1f5;
  border-radius:6px;
  font: .92em/1.65 Consolas,monospace
}
pre code {
  padding:0
}
.guide h2 {
  margin-top:32px;
  border-top:1px solid var(--line);
  padding-top:20px
}
.guide table {
  display:block;
  overflow-x:auto
}
.shortcut-table td:first-child {
  width:210px
}
.history-list {
  margin:8px 0 16px
}
.skip-link {
  position:absolute;
  left:24px;
  top:-100px;
  padding:12px;
  background:#fff;
  z-index:10
}
.skip-link:focus {
  top:10px
}
.language-page[hidden] {
  display:none
}

@media(max-width:700px) {
  .container {
  width:calc(100% - 28px)
}
.primary-nav {
  gap:6px 16px;
  font-size:.9rem
}
.language-toggle {
  margin-left:0
}
.heading-row {
  gap:16px;
  padding:24px 0;
  align-items:flex-start
}
.home-page .heading-row {
  padding:28px 0
}
.brand-icon {
  width:48px;
  height:48px
}
section,.guide {
  padding:20px 16px
}
.edition-grid,.feature-grid,.link-grid,.screenshots {
  grid-template-columns:1fr
}
.edition-card {
  padding:20px
}
.section-nav {
  gap:6px 16px
}
th,td {
  padding:10px
}
.shortcut-table td:first-child {
  width:38%
}
.guide {
  overflow-wrap:anywhere
}
.edition-comparison {
  font-size:.9rem
}

}

@media(prefers-reduced-motion:no-preference) {
  html {
  scroll-behavior:smooth
}
}

/* Decorative layers do not intercept clicks or affect content sizing. */
.site-header {
  position:relative;
  overflow:hidden;
  isolation:isolate;
}
.site-header>.container {
  position:relative;
  z-index:1;
}
.site-header::before {
  content:"";
  position:absolute;
  inset:0 auto 0 -32%;
  width:24%;
  pointer-events:none;
  background:linear-gradient(105deg,transparent,rgba(255,255,255,.11),transparent);
}
main section,main .guide {
  position:relative;
  isolation:isolate;
}
main section::after,main .guide::after {
  content:"";
  position:absolute;
  inset:0;
  border-radius:inherit;
  pointer-events:none;
  background:linear-gradient(105deg,transparent 40%,rgba(255,255,255,.52) 50%,transparent 60%);
  background-size:300% 100%;
  background-position:100% 0;
  opacity:0;
}
@media(prefers-reduced-motion:no-preference) {
  .site-header::before {
    animation:hero-shine 16s ease-in-out infinite;
  }
  main section.visible,main .guide.visible {
    animation:panel-reveal 600ms ease both;
  }
  main section.visible::after,main .guide.visible::after {
    animation:panel-shine 1100ms ease-out 180ms both;
  }
}
@keyframes hero-shine {
  0%,10% { transform:translateX(0); }
  100% { transform:translateX(620%); }
}
@keyframes panel-reveal {
  from { opacity:0; transform:translateY(8px); }
  to { opacity:1; transform:translateY(0); }
}
@keyframes panel-shine {
  0% { opacity:0; background-position:100% 0; }
  10% { opacity:1; }
  90% { opacity:1; }
  100% { opacity:0; background-position:0% 0; }
}