@font-face {
  font-family: "Source Han Sans";
  src: url("assets/source-han-bold.woff2") format("woff2");
  font-style: normal;
  font-weight: 700;
  font-display: swap;
}

* { box-sizing: border-box; }
html { --gold-border-width: 8px; min-height: 100%; background: #30231c; }
body {
  position: relative;
  isolation: isolate;
  margin: 0;
  min-height: 100vh;
  color: #ffedb9;
  background-image: url("assets/bg-classic-Bm-bkJRp.png");
  background-position: center top;
  background-size: 100% 100%;
  background-repeat: no-repeat;
  background-attachment: scroll;
  font-family: "Source Han Sans", "Microsoft YaHei", sans-serif;
  -webkit-font-smoothing: antialiased;
}
.page-background {
  position: absolute;
  inset: 0;
  z-index: -1;
  overflow: clip;
  pointer-events: none;
}
.page-background::before {
  content: "";
  position: absolute;
  inset: 0;
  background: url("assets/党旗-高清重绘.png") left top / cover no-repeat;
  transform: scale(1.03);
  transform-origin: left top;
}
.page-background.is-aligned::before {
  inset: auto;
  left: var(--flag-left);
  top: var(--flag-top);
  width: var(--flag-width);
  height: var(--flag-height);
  background-size: 100% 100%;
  transform: none;
}

/* The reference image contains only the activity canvas, without the site shell. */
.activities {
  --gap: 2.28vw;
  position: relative;
  isolation: isolate;
  overflow: clip;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 2fr);
  gap: var(--gap);
  padding: 1.85vw 3.2vw 0 2.7vw;
  width: 100%;
}
.card {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 0;
  aspect-ratio: 639.1 / 584.1;
  color: inherit;
  text-decoration: none;
}
.card--large { aspect-ratio: auto; }
.card.card--video {
  display: block;
  aspect-ratio: auto;
  align-self: start;
  padding: var(--gold-border-width);
  background-color: #bd8c20;
  background-image:
    url("assets/border-nr-bottom-1920-BqUa1FAP.png"),
    url("assets/border-nr-bottom-1920-BqUa1FAP.png"),
    linear-gradient(90deg, #c79120, #a96a06);
  background-position: top, bottom, center;
  background-size: 100% var(--gold-border-width), 100% var(--gold-border-width), 100% 100%;
  background-repeat: no-repeat;
  overflow: hidden;
}
.card__video {
  position: static;
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: contain;
  background: #000 url("assets/建设新疆视频_封面.jpg") center / contain no-repeat;
}
.video-start {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 76px;
  height: 76px;
  padding: 0;
  border: 1px solid #ffdf77;
  border-radius: 50%;
  background: rgba(30, 9, 4, .65);
  color: #fff0b8;
  cursor: pointer;
}
.video-start svg { display: block; width: 100%; height: 100%; }
.video-start:hover { background: rgba(30, 9, 4, .85); }
.video-start:focus-visible { outline: 2px solid #fff0b8; outline-offset: 4px; }
.video-start[hidden] { display: none; }
.activities + .new-returning { margin-top: calc(2 * var(--gold-border-width)); }
@media (max-width: 750px) {
  html { --gold-border-width: 9px; }
}
.card--branding { aspect-ratio: auto; }
.card__branding-hitarea {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  pointer-events: none;
}
.card__branding-hotspot { pointer-events: fill; }
.card__branding-image {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
  pointer-events: none;
  transition: transform .25s ease;
}
.card--branding:has(.card__branding-hotspot:hover) .card__branding-image { transform: scale(1.1); }
.card__branding-caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 9%;
  margin: 0;
  color: #ffdf77;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(14px, 1.6vw, 32px);
  font-weight: 600;
  line-height: 1.4;
  transform: translateY(-1.4em);
  letter-spacing: .08em;
  text-align: center;
  text-shadow: 0 2px 4px rgba(80, 0, 0, .5);
  pointer-events: none;
}
.site-footer {
  padding: 20px 16px;
  background: rgba(35, 8, 8, .88);
  color: #ffdf77;
  font-size: 14px;
  line-height: 1.6;
  text-align: center;
}
.site-footer p { margin: 0; }
@media (max-width: 700px) {
  .activities { gap: 18px; padding: 20px 20px 0; grid-template-columns: minmax(0, 1fr); }
  .card--large { aspect-ratio: 1327.7 / 583; }
  .card--branding { aspect-ratio: 1448 / 1300; }
  .card__branding-caption { bottom: 1%; }
}
@media (prefers-reduced-motion: reduce) {
  .card__branding-image { transition: none; }
}