:root {
  color-scheme: light;
  --color-bg: #F6F2E9;
  --color-surface: #FFFCF6;
  --color-surface-hover: #EEE8DC;
  --color-surface-active: #E5DDCF;
  --color-text: #232323;
  --color-muted: #68625A;
  --color-border: #D8D0C4;
  --color-control-border: #837A70;
  --color-rule: #232323;
  --color-focus: #244A66;
  --color-on-accent: #FFFFFF;
  --color-game-red: #A52B3F;
  --color-game-red-hover: #8E2435;
  --color-game-red-active: #781D2D;
  --color-game-blue: #244A66;
  --color-game-blue-hover: #1D3D55;
  --color-game-blue-active: #173145;
  --color-game-purple: #6B3C86;
  --color-game-purple-hover: #5A3271;
  --color-game-purple-active: #49285D;
  --font-display: Georgia, "Times New Roman", serif;
  --font-heading: "Songti SC", "Noto Serif CJK SC", "Source Han Serif SC", SimSun, serif;
  --font-body: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-family: var(--font-body);
}

* { box-sizing: border-box; }
body { margin: 0; color: var(--color-text); background: var(--color-bg); }
button { font: inherit; cursor: pointer; }
a, button { -webkit-tap-highlight-color: transparent; }
:is(a, button):focus-visible { outline: 3px solid var(--color-focus); outline-offset: 3px; }
.hub { width: min(960px, calc(100% - 32px)); margin: 0 auto; padding: 32px 0; }
.hero { padding-bottom: 24px; border-bottom: 2px solid var(--color-rule); text-align: center; }
.hero h1 { margin: 0; font-family: var(--font-display); font-size: 40px; font-weight: 700; line-height: 1.2; letter-spacing: -.02em; }
.brand-name { margin: 8px 0 0; color: var(--color-muted); font-size: 16px; line-height: 1.6; }
.game-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; margin-top: 24px; }
.game-card {
  --accent: var(--color-game-red);
  --accent-hover: var(--color-game-red-hover);
  --accent-active: var(--color-game-red-active);
  display: grid;
  grid-template-columns: minmax(0, 1fr) 40px;
  align-items: center;
  gap: 8px;
  min-height: 156px;
  padding: 12px;
  border: 1px solid var(--color-control-border);
  background: var(--color-surface);
  color: inherit;
  text-decoration: none;
  transition: background-color 150ms ease-out;
}
.game-card--blue { --accent: var(--color-game-blue); --accent-hover: var(--color-game-blue-hover); --accent-active: var(--color-game-blue-active); }
.game-card--purple { --accent: var(--color-game-purple); --accent-hover: var(--color-game-purple-hover); --accent-active: var(--color-game-purple-active); }
.game-number { color: var(--color-muted); font-family: var(--font-display); font-size: 24px; line-height: 1; font-variant-numeric: tabular-nums; }
.avatar-wrap { display: grid; place-items: center; }
.avatar-wrap img { display: block; width: 40px; height: 40px; object-fit: contain; }
.card-copy { grid-column: 1 / -1; min-width: 0; overflow-wrap: anywhere; }
.card-copy strong { display: block; font-family: var(--font-display); font-size: 24px; font-weight: 700; line-height: 1.25; }
.game-type { display: block; margin-top: 4px; color: var(--color-muted); font-size: 14px; line-height: 1.6; }
.game-description { display:block; margin-top:4px; color:var(--color-text); font-size:14px; line-height:1.6; }
.enter { grid-column: 1 / -1; display: flex; align-items: center; justify-content: space-between; gap: 8px; min-height: 44px; padding: 8px 12px; border-radius: 4px; background: var(--accent); color: var(--color-on-accent); font-size: 16px; font-weight: 600; line-height: 1.5; transition: background-color 150ms ease-out; }
.enter-label { display: inline; }
.game-card:active { background: var(--color-surface-active); }
.game-card:active .enter { background: var(--accent-active); }
.utility-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; margin-top: 32px; padding: 16px 8px 0; border-top: 1px solid var(--color-border); }
.utility-card { display: flex; align-items: center; min-width: 0; min-height: 88px; padding: 8px; border: 1px solid var(--color-control-border); border-radius: 0; background: transparent; color: var(--color-text); text-align: left; text-decoration: none; overflow-wrap: anywhere; transform: skewX(-8deg); transition: background-color 150ms ease-out; }
/* Tilt the outline while keeping labels upright and readable. */
.utility-card > * { transform: skewX(8deg); }
.utility-content { display: flex; align-items: center; gap: 4px; min-width: 0; }
.utility-icon { display: block; flex: 0 0 20px; width: 20px; height: 20px; }
.utility-copy { min-width: 0; }
.utility-card strong { font-size: 16px; font-weight: 600; line-height: 1.5; }
.utility-copy > span { display: block; margin-top: 4px; color: var(--color-muted); font-size: 14px; line-height: 1.6; }
.utility-card:active, .close-panel:active { background: var(--color-surface-active); }
.site-footer { margin-top: 24px; color: var(--color-muted); font-size: 14px; line-height: 1.6; }
.site-footer p { margin: 8px 0 0; }
.site-footer summary { display: flex; align-items: center; min-height: 44px; cursor: pointer; text-decoration: underline; text-underline-offset: 4px; }
.site-footer summary:focus-visible { outline: 3px solid var(--color-focus); outline-offset: 3px; }
.utility-panel { margin-top: 16px; padding: 24px; border: 1px solid var(--color-control-border); border-radius: 8px; background: var(--color-surface); color: var(--color-text); }
.utility-panel[hidden] { display: none; }
.utility-panel h2 { margin: 0; font-family: var(--font-heading); font-size: 24px; line-height: 1.3; }
.utility-panel p { margin: 16px 0 24px; font-size: 16px; line-height: 1.7; overflow-wrap: anywhere; }
.panel-actions { display: flex; justify-content: flex-end; }
.close-panel { min-height: 44px; padding: 8px 24px; border: 1px solid var(--color-control-border); border-radius: 4px; background: var(--color-surface); color: var(--color-text); font-weight: 600; }
.contact-back { display: inline-flex; align-items: center; text-decoration: none; }
.no-script { font-size: 14px; line-height: 1.6; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }

@media (min-width: 768px) {
  .hub { width: min(960px, calc(100% - 48px)); padding: 32px 0; }
  .hero h1 { font-size: 56px; }
  .game-card { grid-template-columns: 24px 40px minmax(0, 1fr) 44px; gap: 10px; min-height: 112px; padding: 16px; }
  .game-number { font-size: 24px; }
  .card-copy { grid-column: auto; }
  .card-copy strong { font-size: 26px; }
  .enter { grid-column: auto; justify-content: center; padding: 8px; }
  .enter-label { display: none; }
  .utility-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; }
  .utility-card { padding: 12px; }
  .utility-content { gap: 8px; }
  .utility-icon { flex-basis: 24px; width: 24px; height: 24px; }
}
@media (max-width: 767px) {
  .card-copy strong[lang="en"] { font-size: clamp(20px, 6vw, 24px); overflow-wrap: normal; }
  .hub { padding: 12px 0; }
  .hero { padding-bottom: 16px; }
  .brand-name { margin-top: 4px; }
  .game-grid { margin-top: 16px; }
  .utility-grid { margin-top: 12px; padding-top: 8px; gap: 8px 12px; }
  .utility-card { min-height: 52px; }
  .utility-icon, .utility-copy > span { display: none; }
  .utility-content { justify-content: center; width: 100%; }
  .site-footer { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 0 8px; margin-top: 12px; }
  .site-footer details { min-width: 0; }
}
@media (min-width: 1024px) {
  .hub { width: min(960px, calc(100% - 64px)); }
  .hero h1 { font-size: 72px; }
  .game-card { grid-template-columns: 24px 40px minmax(0, 1fr) 96px; gap: 12px; }
  .enter-label { display: inline; }
  .enter { gap: 4px; font-size: 14px; }
  .card-copy strong { font-size: 28px; }
}
@media (hover: hover) and (pointer: fine) {
  .game-card:hover, .utility-card:hover, .close-panel:hover { background: var(--color-surface-hover); }
  .game-card:hover .enter { background: var(--accent-hover); }
  .game-card:hover:active, .utility-card:hover:active, .close-panel:hover:active { background: var(--color-surface-active); }
  .game-card:hover:active .enter { background: var(--accent-active); }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
}