/* ===== 节奏游戏（深色游戏画面，品牌橙为主要点缀） ===== */
body.rg-open { overflow: hidden; }

.rg {
  --rg-bg: #0D0817;
  --rg-panel: rgba(30, 18, 50, 0.72);
  --rg-line: rgba(255, 247, 238, 0.14);
  --rg-text: #FFF7EE;
  --rg-dim: rgba(255, 247, 238, 0.62);
  --rg-orange: #FF6B00;
  --rg-hot: #FF8A2A;
  --rg-gold: #FFD84A;
  --rg-cyan: #3CE6FF;
  --rg-pink: #FF4D6D;
  --u: min(1vw, 1vh);
  position: fixed; inset: 0;
  background: var(--rg-bg);
  color: var(--rg-text);
  z-index: 80;
  overflow: hidden;
  font-family: -apple-system, 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  -webkit-user-select: none; user-select: none;
  touch-action: manipulation;
}
.rg-canvas { position: absolute; inset: 0; display: block; }
.rg-ui { position: absolute; inset: 0; pointer-events: none; }
.rg-ui > * { pointer-events: auto; }

/* 通用 */
.rg-kicker { font-size: max(13px, calc(var(--u) * 3.4)); font-weight: 800; color: var(--rg-hot); letter-spacing: 0.08em; }
.rg-btn {
  font: inherit; cursor: pointer;
  height: max(54px, calc(var(--u) * 13)); padding: 0 calc(var(--u) * 7);
  border: none; border-radius: 999px;
  background: var(--rg-orange); color: #1A0A00;
  font-size: max(17px, calc(var(--u) * 4.6)); font-weight: 900; letter-spacing: 0.04em;
  box-shadow: 0 0 0 1px rgba(255,138,42,0.6), 0 calc(var(--u) * 1.5) calc(var(--u) * 6) rgba(255,107,0,0.35);
  transition: transform 0.12s ease-out;
}
.rg-btn:active { transform: scale(0.96); }
.rg-btn[disabled] { opacity: 0.35; box-shadow: none; }
.rg-btn.ghost { background: transparent; color: var(--rg-text); box-shadow: inset 0 0 0 2px var(--rg-line); }
.rg-back {
  font: inherit; cursor: pointer; background: none; border: none; color: var(--rg-text);
  font-size: max(15px, calc(var(--u) * 4)); font-weight: 800; padding: 10px 4px;
}
.rg-back::before { content: '←'; margin-right: 6px; }
.ghost-small { position: absolute; top: calc(env(safe-area-inset-top, 0px) + 12px); left: 18px; color: var(--rg-dim); }
.rg-actions { display: flex; gap: 12px; flex-wrap: wrap; justify-content: center; margin-top: calc(var(--u) * 6); }

/* 菜单 */
.rg-menu {
  position: absolute; inset: 0; overflow-y: auto;
  padding: calc(env(safe-area-inset-top, 0px) + 10px) 20px calc(env(safe-area-inset-bottom, 0px) + 24px);
  background: linear-gradient(180deg, rgba(13,8,23,0.35) 0%, rgba(13,8,23,0.86) 55%, rgba(13,8,23,0.96) 100%);
  display: flex; flex-direction: column;
}
.rg-bar { display: flex; justify-content: space-between; align-items: center; min-height: 44px; }
.rg-status { font-size: 13px; font-weight: 800; color: var(--rg-dim); padding: 6px 12px; border-radius: 999px; box-shadow: inset 0 0 0 1.5px var(--rg-line); }
.rg-status.ok { color: #7CF2A4; box-shadow: inset 0 0 0 1.5px rgba(124,242,164,0.5); }
.rg-hero { padding: calc(var(--u) * 7) 0 calc(var(--u) * 5); }
.rg-title {
  font-size: max(44px, calc(var(--u) * 13)); line-height: 1.02; font-weight: 900; letter-spacing: -0.01em; margin: 10px 0 0;
  font-style: italic; transform: skewX(-4deg); transform-origin: left;
}
.rg-title span { color: var(--rg-orange); text-shadow: 0 0 calc(var(--u) * 5) rgba(255,107,0,0.65); }
.rg-sub { font-size: max(15px, calc(var(--u) * 3.8)); line-height: 1.65; color: var(--rg-dim); margin-top: 14px; max-width: 34em; }
.rg-cards { display: grid; gap: 12px; }
.rg-card {
  font: inherit; color: inherit; cursor: pointer; text-align: left;
  display: grid; grid-template-columns: 1fr auto; grid-template-areas: 'top top' 'song best' 'meta best';
  gap: 4px 12px; align-items: end;
  padding: 16px 18px; border-radius: 18px; border: none;
  background: var(--rg-panel); box-shadow: inset 0 0 0 1.5px var(--rg-line);
  transition: transform 0.12s ease-out, box-shadow 0.15s;
}
.rg-card:active { transform: scale(0.98); }
.rg-card.is-on { box-shadow: inset 0 0 0 2.5px var(--rg-orange), 0 0 calc(var(--u) * 7) rgba(255,107,0,0.32); background: rgba(52,26,40,0.85); }
.rg-card-top { grid-area: top; display: flex; justify-content: space-between; align-items: center; }
.rg-level { font-size: 13px; font-weight: 900; color: var(--rg-hot); }
.rg-dots { display: inline-flex; gap: 5px; }
.rg-dots i { width: 9px; height: 9px; border-radius: 50%; background: rgba(255,247,238,0.18); }
.rg-dots i.on { background: var(--rg-orange); box-shadow: 0 0 8px rgba(255,107,0,0.8); }
.rg-song { grid-area: song; font-size: max(24px, calc(var(--u) * 6.4)); font-weight: 900; }
.rg-meta { grid-area: meta; font-size: 13px; color: var(--rg-dim); font-weight: 700; }
.rg-best { grid-area: best; text-align: right; font-size: 13px; color: var(--rg-dim); font-weight: 700; white-space: nowrap; }
.rg-best b { font-family: 'TaponeNumber', sans-serif; font-weight: 400; font-size: 22px; color: var(--rg-text); margin: 0 6px; letter-spacing: 0.02em; }
.rg-best em { font-style: normal; font-family: 'TaponeNumber', sans-serif; font-size: 30px; vertical-align: -3px; }
.g-S { color: var(--rg-gold); } .g-A { color: var(--rg-orange); } .g-B { color: var(--rg-cyan); } .g-C, .g-D { color: var(--rg-dim); }
.rg-menu .rg-actions { margin-top: 22px; }
.rg-menu .rg-actions .rg-btn { flex: 1 1 140px; }
.rg-note { font-size: 13px; line-height: 1.7; color: var(--rg-dim); text-align: center; margin-top: 16px; }
.rg-note b { color: var(--rg-pink); }

/* 校准 */
.rg-calib {
  position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: flex-start;
  padding: calc(env(safe-area-inset-top, 0px) + 9vh) 24px 24px; text-align: center;
}
.rg-cal-title { font-family: 'TaponeNumber', -apple-system, 'PingFang SC', sans-serif; font-size: max(64px, calc(var(--u) * 22)); line-height: 1; font-weight: 900; margin-top: 10px; }
.rg-cal-title.go { color: var(--rg-orange); text-shadow: 0 0 calc(var(--u) * 6) rgba(255,107,0,0.6); }
.rg-cal-title.ok { color: var(--rg-gold); font-size: max(40px, calc(var(--u) * 11)); }
.rg-cal-title.small { font-size: max(36px, calc(var(--u) * 10)); }
.rg-cal-dots { display: flex; gap: calc(var(--u) * 3); margin-top: calc(var(--u) * 6); }
.rg-cal-dots i { width: max(18px, calc(var(--u) * 5)); height: max(18px, calc(var(--u) * 5)); border-radius: 50%; box-shadow: inset 0 0 0 2.5px var(--rg-line); transition: background 0.1s, box-shadow 0.1s; }
.rg-cal-dots i.on { background: var(--rg-orange); box-shadow: 0 0 14px rgba(255,107,0,0.8); }
.rg-cal-tip { font-size: max(15px, calc(var(--u) * 4)); line-height: 1.6; color: var(--rg-dim); margin-top: calc(var(--u) * 5); max-width: 26em; }

/* 游戏中 */
.rg-quit {
  position: absolute; left: 14px; bottom: calc(env(safe-area-inset-bottom, 0px) + 14px);
  font: inherit; font-size: 13px; font-weight: 800; color: var(--rg-dim);
  background: rgba(13,8,23,0.6); border: none; border-radius: 999px; padding: 8px 14px; box-shadow: inset 0 0 0 1.5px var(--rg-line);
}
.rg-demo-tag {
  position: absolute; right: 14px; bottom: calc(env(safe-area-inset-bottom, 0px) + 14px);
  font-size: 13px; font-weight: 900; color: #1A0A00; background: var(--rg-cyan); border-radius: 999px; padding: 6px 12px;
}

/* 结算 */
.rg-result {
  position: absolute; inset: 0; overflow-y: auto;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  padding: calc(env(safe-area-inset-top, 0px) + 20px) 20px calc(env(safe-area-inset-bottom, 0px) + 20px);
  text-align: center;
  background: radial-gradient(ellipse at 50% 38%, rgba(255,107,0,0.22) 0%, rgba(13,8,23,0.86) 55%, rgba(13,8,23,0.95) 100%);
  animation: rg-fade 0.25s ease-out both;
}
.rg-grade-wrap { position: relative; margin-top: calc(var(--u) * 2); }
.rg-grade {
  position: relative; z-index: 0;
  font-family: 'TaponeNumber', sans-serif; font-size: max(170px, calc(var(--u) * 52)); line-height: 0.82; padding: 0 0.12em;
  animation: rg-slam 0.5s cubic-bezier(0.2, 1.4, 0.4, 1) 0.32s both;
}
.rg-grade::after {
  content: ''; position: absolute; z-index: -1; left: -0.08em; right: -0.08em; bottom: 0.08em; height: 0.2em;
  background: var(--rg-orange); transform: skewX(-14deg);
  box-shadow: 0 0 calc(var(--u) * 8) rgba(255,107,0,0.7);
}
.rg-grade.g-S { color: var(--rg-gold); text-shadow: 0 0 calc(var(--u) * 8) rgba(255,216,74,0.55); }
.rg-grade.g-A { color: var(--rg-text); text-shadow: 0 0 calc(var(--u) * 6) rgba(255,138,42,0.6); }
.rg-grade.g-B { color: var(--rg-cyan); }
.rg-grade.g-C, .rg-grade.g-D { color: var(--rg-dim); }
.rg-newbest, .rg-fc {
  position: absolute; top: 4%; font-size: max(14px, calc(var(--u) * 3.8)); font-weight: 900; padding: 5px 12px; border-radius: 6px;
  animation: rg-pop 0.35s cubic-bezier(0.2, 1.6, 0.4, 1) 0.75s both;
}
.rg-newbest { right: -18%; background: var(--rg-gold); color: #1A0A00; transform: rotate(8deg); }
.rg-fc { left: -16%; background: var(--rg-cyan); color: #00161A; transform: rotate(-8deg); }
.rg-score {
  font-family: 'TaponeNumber', sans-serif; font-size: max(56px, calc(var(--u) * 17)); line-height: 1; margin-top: calc(var(--u) * 5);
  letter-spacing: 0.02em; font-variant-numeric: tabular-nums;
}
.rg-stats {
  display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px 6px;
  width: 100%; max-width: 520px; margin-top: calc(var(--u) * 5);
  padding: 16px 8px; border-radius: 18px; background: var(--rg-panel); box-shadow: inset 0 0 0 1.5px var(--rg-line);
  animation: rg-up 0.4s ease-out 0.85s both;
}
.rg-stats b { display: block; font-family: 'TaponeNumber', sans-serif; font-weight: 400; font-size: max(30px, calc(var(--u) * 8.5)); line-height: 1; }
.rg-stats span { display: block; font-size: 13px; font-weight: 800; color: var(--rg-dim); margin-top: 4px; }
.c-gold { color: var(--rg-gold); } .c-cyan { color: var(--rg-cyan); } .c-pink { color: var(--rg-pink); }
.rg-best-line { font-size: 13px; color: var(--rg-dim); margin-top: 12px; min-height: 18px; }
.rg-result .rg-actions { margin-top: 18px; animation: rg-up 0.4s ease-out 1s both; }

@keyframes rg-fade { from { opacity: 0; } to { opacity: 1; } }
@keyframes rg-slam { 0% { transform: scale(2.6); opacity: 0; } 60% { opacity: 1; } 100% { transform: scale(1); opacity: 1; } }
@keyframes rg-pop { 0% { transform: scale(0) rotate(0deg); } 100% { transform: scale(1) rotate(var(--r, 8deg)); } }
@keyframes rg-up { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: none; } }
.rg-fc { --r: -8deg; }

/* 横屏（手机横放 / 投到电视）：菜单左右排、卡片三列 */
.rg.is-landscape .rg-menu { padding-left: max(28px, env(safe-area-inset-left)); padding-right: max(28px, env(safe-area-inset-right)); }
.rg.is-landscape .rg-hero { padding: calc(var(--u) * 3) 0; }
.rg.is-landscape .rg-title br { display: none; }
.rg.is-landscape .rg-cards { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.rg.is-landscape .rg-menu .rg-actions { justify-content: center; }
.rg.is-landscape .rg-menu .rg-actions .rg-btn { flex: 0 1 280px; }
/* 横屏结算：左边大评级，右边分数、统计、按钮 */
.rg.is-landscape .rg-result {
  display: grid; justify-content: center; align-content: center; justify-items: center;
  grid-template-columns: auto minmax(0, 560px);
  grid-template-areas: 'kick kick' 'grade score' 'grade stats' 'grade best' 'grade actions';
  column-gap: calc(var(--u) * 10);
}
.rg.is-landscape .rg-result > .rg-kicker { grid-area: kick; margin-bottom: calc(var(--u) * 2); }
.rg.is-landscape .rg-grade-wrap { grid-area: grade; align-self: center; }
.rg.is-landscape .rg-grade { font-size: calc(var(--u) * 60); }
.rg.is-landscape .rg-score { grid-area: score; margin-top: 0; }
.rg.is-landscape .rg-stats { grid-area: stats; margin-top: calc(var(--u) * 3); }
.rg.is-landscape .rg-best-line { grid-area: best; }
.rg.is-landscape .rg-result .rg-actions { grid-area: actions; margin-top: calc(var(--u) * 2); }

@media (prefers-reduced-motion: reduce) {
  .rg-grade, .rg-newbest, .rg-fc, .rg-stats, .rg-result .rg-actions, .rg-result { animation: none !important; }
}