:root {
  --felt-dark: #10503f;
  --felt: #19795b;
  --felt-light: #2a9470;
  --wood-dark: #62381f;
  --cream: #fff8e8;
  --ink: #26362f;
  --muted: #6e756f;
  --gold: #f2bf4f;
  --brown-title: #4a2a22;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  min-height: 100dvh;
  overflow-x: hidden;
  color: var(--ink);
  font-family: "Avenir Next", "PingFang SC", "Microsoft YaHei", sans-serif;
  background:
    radial-gradient(circle at 18% 12%, rgb(255 255 255 / 40%) 0 2px, transparent 3px),
    radial-gradient(circle at 82% 74%, rgb(255 255 255 / 24%) 0 2px, transparent 3px),
    linear-gradient(145deg, #f7d976 0%, #f4a95b 48%, #df765a 100%);
  background-size: 40px 40px, 54px 54px, auto;
}

.hub {
  width: min(1080px, calc(100% - 40px));
  margin: 0 auto;
  padding: clamp(40px, 8vh, 88px) 0 56px;
}

/* ── 页首 ────────────────────────────────── */
.hub-header {
  text-align: center;
  margin-bottom: clamp(32px, 6vh, 56px);
}

.eyebrow {
  margin: 0 0 10px;
  color: #6c3a2c;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.28em;
  text-transform: uppercase;
}

.hub-title {
  margin: 0;
  color: var(--brown-title);
  font-family: "STKaiti", "KaiTi", "Avenir Next", sans-serif;
  font-size: clamp(48px, 9vw, 88px);
  line-height: 1;
  letter-spacing: 0.1em;
  text-shadow: 0 3px 0 rgb(255 255 255 / 55%);
}

.hub-lead {
  margin: 16px auto 0;
  max-width: 30ch;
  color: #7a4230;
  font-size: clamp(15px, 2.4vw, 18px);
  font-weight: 600;
}

/* ── 游戏卡片网格 ─────────────────────────── */
.game-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 360px));
  justify-content: center;
  gap: 26px;
}

.game-card {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border-radius: 26px;
  background: var(--cream);
  text-decoration: none;
  color: inherit;
  box-shadow: 0 10px 0 rgb(118 63 41 / 26%), 0 22px 40px rgb(84 42 30 / 26%);
  transition: transform 180ms ease, box-shadow 180ms ease;
}

.game-card:hover,
.game-card:focus-visible {
  transform: translateY(-6px);
  box-shadow: 0 16px 0 rgb(118 63 41 / 26%), 0 30px 50px rgb(84 42 30 / 30%);
}

.game-card:focus-visible {
  outline: 4px solid var(--gold);
  outline-offset: 3px;
}

.card-cover-pic {
  display: contents;
}

.card-cover {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  background: #f3e2c0;
}

/* 纯 CSS 封面（无大图） */
.card-cover--bomb {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: clamp(64px, 16vw, 104px);
  background:
    radial-gradient(circle at 22% 28%, rgb(255 255 255 / 20%) 0 3px, transparent 4px),
    radial-gradient(circle at 78% 68%, rgb(255 255 255 / 14%) 0 3px, transparent 4px),
    linear-gradient(150deg, var(--felt-light), var(--felt) 55%, var(--felt-dark));
  background-size: 34px 34px, 50px 50px, auto;
}

.card-cover--bomb span {
  filter: drop-shadow(0 6px 10px rgb(0 0 0 / 35%));
}

.card-body {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 20px 22px 24px;
}

.card-title {
  margin: 0;
  color: var(--brown-title);
  font-family: "STKaiti", "KaiTi", "Avenir Next", sans-serif;
  font-size: 34px;
  line-height: 1;
  letter-spacing: 0.06em;
}

.card-tagline {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
  font-weight: 600;
}

.card-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 2px 0 4px;
}

.chip {
  padding: 5px 12px;
  border-radius: 999px;
  background: rgb(25 121 91 / 12%);
  color: var(--felt-dark);
  font-size: 12.5px;
  font-weight: 800;
  letter-spacing: 0.02em;
}

.card-cta {
  align-self: flex-start;
  margin-top: 4px;
  padding: 12px 24px;
  border-radius: 999px;
  background: var(--felt);
  color: #fffdf5;
  font-weight: 800;
  letter-spacing: 0.04em;
  box-shadow: 0 5px 0 var(--felt-dark), 0 9px 16px rgb(16 80 63 / 30%);
  transition: transform 140ms ease, box-shadow 140ms ease;
}

.game-card:hover .card-cta {
  transform: translateY(-1px);
  box-shadow: 0 6px 0 var(--felt-dark), 0 11px 18px rgb(16 80 63 / 34%);
}

.card-cta::after {
  content: " →";
}

/* ── 页脚 ────────────────────────────────── */
.hub-footer {
  margin-top: clamp(36px, 6vh, 56px);
  text-align: center;
  color: #7a4230;
  font-size: 14px;
  font-weight: 600;
  opacity: 0.85;
}

@media (prefers-reduced-motion: reduce) {
  .game-card,
  .card-cta {
    transition: none;
  }

  .game-card:hover,
  .game-card:focus-visible {
    transform: none;
  }
}