/* ============ VS vs VS Code 大冒险 · 样式表 ============ */
:root {
  --vs: #7c3aed;
  --vs-deep: #4c1d95;
  --vsc: #0284c7;
  --vsc-deep: #075985;
  --bg: #f5f6fb;
  --card: #ffffff;
  --ink: #1e293b;
  --muted: #64748b;
  --gold: #f59e0b;
  --green: #22c55e;
  --red: #ef4444;
  --radius: 20px;
  --shadow: 0 10px 30px rgba(30, 27, 75, 0.10);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.7;
}
section { scroll-margin-top: 84px; }
img, svg { max-width: 100%; }

/* ============ 顶栏 ============ */
.topbar {
  position: sticky; top: 0; z-index: 50;
  display: flex; align-items: center; gap: 18px;
  padding: 10px 22px;
  background: rgba(255, 255, 255, 0.86);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(30, 27, 75, 0.08);
}
.logo {
  font-weight: 900; font-size: 18px; text-decoration: none; color: var(--ink);
  white-space: nowrap;
}
.logo span { color: var(--vs); }
.logo span + i { font-style: normal; margin: 0 6px; color: var(--gold); }
.logo span:last-of-type { color: var(--vsc); }
.mainnav { display: flex; gap: 4px; flex: 1; }
.mainnav a {
  text-decoration: none; color: var(--muted); font-size: 14px; font-weight: 600;
  padding: 6px 12px; border-radius: 999px; transition: 0.2s;
}
.mainnav a:hover { background: #ede9fe; color: var(--vs); }
.xp-hud { display: flex; align-items: center; gap: 10px; margin-left: auto; }
.level-badge {
  background: linear-gradient(135deg, var(--gold), #f97316);
  color: #fff; font-weight: 800; font-size: 13px;
  padding: 3px 10px; border-radius: 999px; white-space: nowrap;
}
.xp-bar {
  width: 110px; height: 10px; border-radius: 999px;
  background: #e2e8f0; overflow: hidden;
}
.xp-fill {
  height: 100%; border-radius: 999px; width: 0;
  background: linear-gradient(90deg, var(--gold), #f97316);
  transition: width 0.6s cubic-bezier(0.22, 1, 0.36, 1);
}
.xp-text { font-size: 12px; font-weight: 700; color: var(--muted); white-space: nowrap; }
.mute-btn {
  border: none; background: #eef2ff; font-size: 15px; cursor: pointer;
  width: 34px; height: 34px; border-radius: 50%; transition: 0.2s;
}
.mute-btn:hover { transform: scale(1.1); }

/* ============ 首屏 ============ */
.hero {
  display: grid; grid-template-columns: 1.15fr 1fr; gap: 30px; align-items: center;
  max-width: 1150px; margin: 0 auto; padding: 64px 22px 72px;
}
.hero-kicker {
  display: inline-block; background: #ede9fe; color: var(--vs);
  font-weight: 800; font-size: 14px; padding: 4px 14px; border-radius: 999px;
}
.hero h1 {
  font-size: clamp(34px, 5vw, 54px); line-height: 1.15; margin: 14px 0 16px;
}
.hero h1 em { font-style: normal; color: var(--gold); }
.hero-sub { color: var(--muted); font-size: 16px; }
.hero-cta { display: flex; gap: 12px; margin: 22px 0 16px; flex-wrap: wrap; }
.hero-chips { display: flex; gap: 8px; flex-wrap: wrap; }
.hero-chips span {
  background: #fff; border: 1.5px solid #e2e8f0; border-radius: 999px;
  font-size: 13px; font-weight: 700; color: var(--ink); padding: 4px 12px;
}
.hero-art {
  position: relative; display: flex; justify-content: center; align-items: flex-end; gap: 8px;
  background: linear-gradient(135deg, #312e81, #6d28d9 55%, #0369a1);
  border-radius: 28px; padding: 30px 18px 24px; box-shadow: var(--shadow);
}
.hero-mascot { text-align: center; width: 46%; max-width: 210px; }
.hero-mascot b { color: #fff; font-size: 14px; display: block; margin-top: 6px; }
.float-a { animation: floaty 3.6s ease-in-out infinite; }
.float-b { animation: floaty 3.6s ease-in-out 0.7s infinite; }
@keyframes floaty { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-12px); } }
.hero-vs {
  align-self: center; text-align: center; color: #fde047; font-weight: 900;
  font-size: 26px; line-height: 1.05; text-shadow: 0 3px 0 rgba(0,0,0,0.25);
  animation: wiggle 2.2s ease-in-out infinite;
}
@keyframes wiggle { 0%,100% { transform: rotate(-6deg);} 50% { transform: rotate(6deg);} }

/* ============ 通用区块 ============ */
.section { max-width: 1150px; margin: 0 auto; padding: 66px 22px; }
.section-alt {
  max-width: none; background:
    radial-gradient(1200px 400px at 15% 0%, #ede9fe 0%, transparent 60%),
    radial-gradient(1200px 400px at 85% 100%, #dbeafe 0%, transparent 60%);
}
.section-alt > * { max-width: 1150px; margin-left: auto; margin-right: auto; }
.section h2 { font-size: clamp(24px, 3vw, 34px); text-align: center; }
.section-sub { text-align: center; color: var(--muted); margin: 8px 0 34px; }

/* ============ 按钮 ============ */
.btn {
  display: inline-block; border: none; cursor: pointer; text-decoration: none;
  font-size: 15px; font-weight: 800; padding: 12px 26px; border-radius: 999px;
  transition: transform 0.15s, box-shadow 0.15s;
  font-family: inherit;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary {
  color: #fff; background: linear-gradient(135deg, var(--vs), var(--vsc));
  box-shadow: 0 8px 20px rgba(99, 102, 241, 0.35);
}
.btn-ghost { color: var(--ink); background: #fff; border: 2px solid #e2e8f0; }
.btn-small { font-size: 13px; padding: 8px 18px; }
.btn-vs { background: linear-gradient(135deg, #8b5cf6, #5b21b6); color: #fff; }
.btn-vsc { background: linear-gradient(135deg, #38bdf8, #0369a1); color: #fff; }

/* ============ 主角卡片 ============ */
.meet-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.meet-card {
  background: var(--card); border-radius: var(--radius); box-shadow: var(--shadow);
  padding: 26px; border-top: 8px solid var(--vs);
  transition: transform 0.2s;
}
.meet-card:hover { transform: translateY(-4px); }
.meet-vsc { border-top-color: var(--vsc); }
.meet-head { display: flex; gap: 16px; align-items: center; }
.meet-avatar { width: 96px; flex-shrink: 0; filter: drop-shadow(0 6px 10px rgba(0,0,0,0.15)); }
.meet-head h3 { font-size: 20px; }
.meet-role { color: var(--vs); font-weight: 700; font-size: 13px; margin: 2px 0 6px; }
.meet-vsc .meet-role { color: var(--vsc); }
.meet-head p:last-child { font-size: 14px; color: var(--muted); }
.stats { list-style: none; margin-top: 18px; }
.stats li {
  display: grid; grid-template-columns: 1fr 3fr auto; align-items: center;
  gap: 10px; font-size: 13px; font-weight: 700; padding: 5px 0;
}
.bar { background: #eef2f7; border-radius: 999px; height: 12px; overflow: hidden; }
.bar i {
  display: block; height: 100%; border-radius: 999px; width: 0;
  background: linear-gradient(90deg, var(--vs), #a78bfa);
  animation: grow 1s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}
.meet-vsc .bar i { background: linear-gradient(90deg, var(--vsc), #38bdf8); }
@keyframes grow { from { transform: scaleX(0); transform-origin: left; } to { transform: scaleX(1); } }
.stats b { color: var(--muted); font-size: 12px; }

/* ============ 对比长廊 ============ */
.compare-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(330px, 1fr)); gap: 20px;
}
.compare-card {
  background: var(--card); border-radius: var(--radius); box-shadow: var(--shadow);
  padding: 20px; display: flex; flex-direction: column; gap: 12px;
  transition: transform 0.2s, box-shadow 0.2s;
}
.compare-card:hover { transform: translateY(-4px) scale(1.01); box-shadow: 0 16px 36px rgba(30,27,75,0.16); }
.compare-top { display: flex; align-items: center; gap: 12px; }
.compare-icon {
  width: 64px; height: 64px; font-size: 34px; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center; border-radius: 16px;
  background: linear-gradient(135deg, #faf5ff, #eff6ff);
  animation: bob 3s ease-in-out infinite;
}
@keyframes bob { 0%,100% { transform: rotate(-4deg);} 50% { transform: rotate(4deg);} }
.compare-top h3 { font-size: 17px; }
.compare-top small { color: var(--muted); font-weight: 600; }
.compare-row { display: flex; gap: 10px; align-items: flex-start; font-size: 14px; }
.tag {
  flex-shrink: 0; font-size: 12px; font-weight: 800; color: #fff;
  padding: 2px 10px; border-radius: 999px; margin-top: 2px;
}
.tag-vs { background: var(--vs); }
.tag-vsc { background: var(--vsc); }
.compare-row p { color: #334155; }
.compare-note {
  font-size: 12.5px; color: var(--muted); background: #f8fafc;
  border-left: 3px solid var(--gold); padding: 6px 10px; border-radius: 0 8px 8px 0;
}

/* ============ 场景选择 ============ */
.scene-chips { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; }
.scene-chip {
  border: 2px solid #e2e8f0; background: #fff; border-radius: 999px;
  font-size: 14px; font-weight: 700; padding: 10px 18px; cursor: pointer;
  transition: 0.15s; font-family: inherit; color: var(--ink);
}
.scene-chip:hover { transform: translateY(-2px); border-color: var(--gold); }
.scene-chip.active {
  background: linear-gradient(135deg, var(--vs), var(--vsc));
  color: #fff; border-color: transparent;
  box-shadow: 0 8px 18px rgba(99,102,241,0.35);
}
.scene-result {
  margin: 26px auto 0; max-width: 720px; background: var(--card);
  border-radius: var(--radius); box-shadow: var(--shadow); padding: 26px;
  min-height: 150px; display: flex; align-items: center; justify-content: center;
}
.scene-empty { color: var(--muted); }
.scene-pick { display: flex; gap: 20px; align-items: center; width: 100%; }
.scene-mascot { width: 110px; flex-shrink: 0; animation: pop 0.4s cubic-bezier(0.34, 1.56, 0.64, 1); }
@keyframes pop { from { transform: scale(0.4); opacity: 0; } to { transform: scale(1); opacity: 1; } }
.scene-pick h3 { font-size: 20px; margin-bottom: 6px; }
.scene-pick .who { display: inline-block; font-size: 13px; font-weight: 800; color: #fff; padding: 2px 12px; border-radius: 999px; margin-bottom: 8px; }
.who-vs { background: var(--vs); }
.who-vsc { background: var(--vsc); }
.scene-pick ul { padding-left: 20px; font-size: 14px; color: #334155; }
.scene-pick li { margin: 2px 0; }

/* ============ 游戏大厅 ============ */
.arcade-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 20px;
}
.game-card {
  background: var(--card); border-radius: var(--radius); box-shadow: var(--shadow);
  padding: 16px; text-align: center; display: flex; flex-direction: column; gap: 10px;
  transition: transform 0.2s;
}
.game-card:hover { transform: translateY(-6px) rotate(-1deg); }
.game-cover { position: relative; border-radius: 14px; overflow: hidden; }
.game-cover svg { display: block; width: 100%; height: auto; }
.game-flag {
  position: absolute; top: 10px; left: 10px; background: rgba(255,255,255,0.92);
  font-size: 12px; font-weight: 800; padding: 2px 10px; border-radius: 999px;
}
.game-card h3 { font-size: 18px; }
.game-card p { font-size: 13.5px; color: var(--muted); flex: 1; }
.played-tick { font-size: 12px; font-weight: 800; color: var(--green); }

/* ============ 成就 ============ */
.achieve-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 16px;
}
.achieve-card {
  background: var(--card); border-radius: 16px; box-shadow: var(--shadow);
  padding: 18px; text-align: center; position: relative; overflow: hidden;
  transition: transform 0.2s;
}
.achieve-card:hover { transform: translateY(-3px); }
.achieve-card .a-icon { font-size: 40px; display: block; margin-bottom: 6px; }
.achieve-card h4 { font-size: 15px; }
.achieve-card p { font-size: 12.5px; color: var(--muted); }
.achieve-card.locked { filter: grayscale(1); opacity: 0.55; }
.achieve-card.locked .a-icon::after { content: "🔒"; position: absolute; }
.achieve-card.unlocked { border: 2px solid var(--gold); background: linear-gradient(180deg, #fffbeb, #fff); }
.achieve-card.unlocked::before {
  content: "✓ 已达成"; position: absolute; top: 8px; right: -30px;
  background: var(--gold); color: #fff; font-size: 11px; font-weight: 800;
  padding: 2px 34px; transform: rotate(38deg);
}
.danger-zone { text-align: center; margin-top: 30px; }

/* ============ 弹窗 ============ */
.modal {
  position: fixed; inset: 0; z-index: 100;
  background: rgba(15, 23, 42, 0.55); backdrop-filter: blur(4px);
  display: flex; align-items: center; justify-content: center; padding: 18px;
}
.modal.hidden { display: none; }
.modal-box {
  background: var(--bg); border-radius: 22px; width: min(760px, 100%);
  max-height: 92vh; display: flex; flex-direction: column; overflow: hidden;
  animation: pop 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  box-shadow: 0 30px 80px rgba(0,0,0,0.4);
}
.modal-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 20px; background: linear-gradient(135deg, var(--vs), var(--vsc)); color: #fff;
}
.modal-head h3 { font-size: 18px; }
.modal-close {
  border: none; background: rgba(255,255,255,0.2); color: #fff; font-size: 15px;
  width: 32px; height: 32px; border-radius: 50%; cursor: pointer; transition: 0.2s;
}
.modal-close:hover { background: rgba(255,255,255,0.35); transform: rotate(90deg); }
.modal-body { padding: 22px; overflow-y: auto; }

/* ---- 通用游戏 UI ---- */
.g-hud {
  display: flex; justify-content: space-between; align-items: center; gap: 10px;
  font-weight: 800; font-size: 14px; margin-bottom: 14px; flex-wrap: wrap;
}
.g-hud .pill { background: #fff; border: 1.5px solid #e2e8f0; padding: 3px 12px; border-radius: 999px; }
.g-center { text-align: center; }
.g-start { text-align: center; padding: 26px 10px; }
.g-start h4 { font-size: 22px; margin-bottom: 8px; }
.g-start p { color: var(--muted); margin-bottom: 18px; }
.g-result { text-align: center; padding: 18px 6px; }
.g-result .big { font-size: 52px; display: block; animation: pop 0.5s cubic-bezier(0.34,1.56,0.64,1); }
.g-result h4 { font-size: 24px; margin: 6px 0; }
.g-result p { color: var(--muted); margin-bottom: 16px; }
.g-btn-row { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; margin-top: 18px; }

/* 问答 */
.quiz-q {
  background: #fff; border-radius: 16px; padding: 22px; text-align: center;
  font-size: 17px; font-weight: 700; box-shadow: var(--shadow); margin-bottom: 16px;
}
.quiz-q small { display: block; color: var(--muted); font-weight: 600; margin-bottom: 6px; }
.quiz-options { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.quiz-opt {
  border: 3px solid #e2e8f0; background: #fff; border-radius: 16px; cursor: pointer;
  padding: 16px 12px; font-size: 15px; font-weight: 800; font-family: inherit;
  transition: 0.15s; display: flex; flex-direction: column; align-items: center; gap: 6px;
}
.quiz-opt .dot { width: 44px; height: 44px; border-radius: 12px; display: flex; align-items: center; justify-content: center; color: #fff; font-size: 18px; font-weight: 900; }
.quiz-opt[data-side="vs"] .dot { background: var(--vs); }
.quiz-opt[data-side="vsc"] .dot { background: var(--vsc); }
.quiz-opt:hover:not(:disabled) { transform: translateY(-3px); border-color: var(--gold); }
.quiz-opt.correct { border-color: var(--green); background: #f0fdf4; animation: pop 0.3s; }
.quiz-opt.wrong { border-color: var(--red); background: #fef2f2; animation: shake 0.35s; }
@keyframes shake { 0%,100% { transform: translateX(0);} 25% { transform: translateX(-6px);} 75% { transform: translateX(6px);} }
.quiz-explain {
  margin-top: 14px; background: #fffbeb; border: 1.5px dashed var(--gold);
  border-radius: 12px; padding: 12px 16px; font-size: 14px; animation: pop 0.3s;
}

/* 分类 */
.sort-area { display: grid; grid-template-columns: 1fr 1.2fr; gap: 16px; }
.sort-pool { display: flex; flex-direction: column; gap: 10px; min-height: 60px; }
.sort-item {
  background: #fff; border: 2px solid #e2e8f0; border-radius: 12px;
  padding: 10px 14px; font-size: 14px; font-weight: 700; cursor: grab;
  display: flex; gap: 8px; align-items: center; transition: 0.15s; user-select: none;
}
.sort-item:hover { border-color: var(--gold); transform: translateY(-2px); }
.sort-item.selected { border-color: var(--gold); background: #fffbeb; box-shadow: 0 0 0 3px rgba(245,158,11,0.25); }
.sort-item.dragging { opacity: 0.4; }
.sort-item.gone { display: none; }
.sort-bins { display: grid; grid-template-rows: 1fr 1fr; gap: 12px; }
.sort-bin {
  border: 3px dashed #cbd5e1; border-radius: 16px; padding: 14px;
  display: flex; flex-direction: column; align-items: center; justify-content: flex-start;
  gap: 8px; transition: 0.15s; min-height: 130px; background: rgba(255,255,255,0.6);
}
.sort-bin.over { border-color: var(--gold); background: #fffbeb; transform: scale(1.02); }
.sort-bin h4 { font-size: 15px; }
.sort-bin.bin-vs h4 { color: var(--vs); }
.sort-bin.bin-vsc h4 { color: var(--vsc); }
.sort-bin .dropped { font-size: 12.5px; background: #fff; border-radius: 8px; padding: 3px 10px; font-weight: 700; animation: pop 0.25s; }
.sort-tip { font-size: 13px; color: var(--muted); text-align: center; margin-top: 12px; }

/* 记忆翻牌 */
.memory-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; }
.mem-card {
  aspect-ratio: 3/4; perspective: 600px; cursor: pointer; border: none; background: none; padding: 0;
}
.mem-inner {
  position: relative; width: 100%; height: 100%;
  transform-style: preserve-3d; transition: transform 0.4s cubic-bezier(0.34,1.3,0.64,1);
}
.mem-card.flipped .mem-inner, .mem-card.matched .mem-inner { transform: rotateY(180deg); }
.mem-face {
  position: absolute; inset: 0; backface-visibility: hidden; border-radius: 12px;
  display: flex; align-items: center; justify-content: center; flex-direction: column; gap: 4px;
  font-weight: 800; font-size: 13px; padding: 4px; text-align: center;
}
.mem-back { background: linear-gradient(135deg, var(--vs), var(--vsc)); color: #fff; font-size: 26px; }
.mem-front { background: #fff; border: 2px solid #e2e8f0; transform: rotateY(180deg); }
.mem-card.matched .mem-front { border-color: var(--green); background: #f0fdf4; animation: pop 0.3s; }
.mem-card.shake { animation: shake 0.35s; }

/* 打地鼠 */
.whack-banner {
  background: #fff; border-radius: 14px; padding: 12px 16px; text-align: center;
  font-weight: 800; font-size: 16px; margin-bottom: 14px; box-shadow: var(--shadow);
  min-height: 52px; display: flex; align-items: center; justify-content: center;
}
.whack-banner.good { color: var(--green); }
.whack-banner.bad { color: var(--red); animation: shake 0.3s; }
.whack-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.hole {
  background: radial-gradient(circle at 50% 30%, #86efac, #22c55e);
  border-radius: 50% 50% 42% 42% / 30% 30% 70% 70%;
  height: 96px; overflow: hidden; position: relative; cursor: crosshair;
  box-shadow: inset 0 8px 14px rgba(0,0,0,0.25);
}
.mole {
  position: absolute; left: 12%; right: 12%; bottom: 0; height: 88%;
  border-radius: 40% 40% 10% 10%; transform: translateY(110%);
  transition: transform 0.18s ease-out; display: flex; align-items: center; justify-content: center;
}
.hole.up .mole { transform: translateY(6%); }
.mole-vs { background: linear-gradient(180deg, #8b5cf6, #5b21b6); }
.mole-vsc { background: linear-gradient(180deg, #38bdf8, #0369a1); }
.mole span {
  color: #fff; font-weight: 900; font-size: 22px; font-family: Arial, sans-serif;
  text-shadow: 0 2px 3px rgba(0,0,0,0.3);
}
.mole::before, .mole::after {
  content: ""; position: absolute; top: 26%; width: 9px; height: 9px; border-radius: 50%; background: #fff;
}
.mole::before { left: 24%; } .mole::after { right: 24%; }
.hole.hit .mole { filter: brightness(1.6) saturate(1.4); }
.hole.miss .mole { filter: grayscale(0.7); }

/* 猜猜我是谁 */
.guess-stage {
  background: #fff; border-radius: 18px; box-shadow: var(--shadow);
  text-align: center; padding: 26px; margin-bottom: 16px;
}
.guess-icon { font-size: 84px; display: inline-block; animation: bob 2.4s ease-in-out infinite; }
.guess-options { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.guess-opt {
  border: 3px solid #e2e8f0; background: #fff; border-radius: 14px; cursor: pointer;
  padding: 14px 8px; font-size: 14px; font-weight: 800; font-family: inherit; transition: 0.15s;
}
.guess-opt:hover:not(:disabled) { transform: translateY(-3px); border-color: var(--gold); }
.guess-opt.correct { border-color: var(--green); background: #f0fdf4; }
.guess-opt.wrong { border-color: var(--red); background: #fef2f2; animation: shake 0.35s; }

/* ============ Toast 与彩带 ============ */
.toast-wrap { position: fixed; right: 18px; bottom: 18px; z-index: 200; display: flex; flex-direction: column; gap: 10px; }
.toast {
  background: #1e293b; color: #fff; padding: 12px 18px; border-radius: 14px;
  font-size: 14px; font-weight: 700; box-shadow: 0 10px 30px rgba(0,0,0,0.3);
  animation: toastIn 0.35s cubic-bezier(0.34,1.56,0.64,1); max-width: 320px;
}
.toast b { color: var(--gold); }
@keyframes toastIn { from { transform: translateX(120%); } to { transform: translateX(0); } }
.toast.out { transition: 0.4s; opacity: 0; transform: translateY(10px); }

#confettiLayer { position: fixed; inset: 0; pointer-events: none; z-index: 300; overflow: hidden; }
.confetti {
  position: absolute; width: 10px; height: 14px; border-radius: 3px;
  animation: fall linear forwards;
}
@keyframes fall {
  from { transform: translateY(-20px) rotate(0); opacity: 1; }
  to { transform: translateY(105vh) rotate(720deg); opacity: 0.7; }
}

/* ============ 页脚 ============ */
.footer {
  text-align: center; padding: 34px 20px 44px; color: var(--muted); font-size: 14px;
  background: linear-gradient(180deg, transparent, #e0e7ff);
}
.footer p { margin: 4px 0; }
.footer b { color: var(--vs); }

/* ============ 响应式 ============ */
@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; padding-top: 40px; }
  .meet-grid { grid-template-columns: 1fr; }
  .mainnav { display: none; }
}
@media (max-width: 560px) {
  .xp-bar { width: 64px; }
  .xp-text { display: none; }
  .quiz-options { grid-template-columns: 1fr; }
  .sort-area { grid-template-columns: 1fr; }
  .memory-grid { grid-template-columns: repeat(3, 1fr); }
  .guess-options { grid-template-columns: 1fr; }
  .whack-grid { gap: 8px; }
  .hole { height: 78px; }
  .scene-pick { flex-direction: column; text-align: center; }
}