/* ===== 结算页面 ===== */
.result-page {
  min-height: 100vh;
  background:
    radial-gradient(120% 50% at 50% -10%, #FFF4D6 0%, rgba(255,244,214,0) 55%),
    linear-gradient(180deg, #FFF8E8 0%, #FFFCF4 45%, #FFFCEF 100%);
  padding: 0 18px calc(28px + env(safe-area-inset-bottom));
  padding-bottom: 28px !important;
}
.celebration {
  text-align: center;
  padding: 28px 8px 6px;
}
.celeb-title {
  font-size: 30px;
  font-weight: 800;
  color: var(--gc-primary);
  letter-spacing: 0.5px;
  line-height: 1.2;
  text-shadow: 0 2px 10px rgba(79,140,255,0.18);
  animation: pop-in 0.6s cubic-bezier(0.22, 1.4, 0.36, 1) both;
}
@keyframes pop-in {
  0% { transform: scale(0.6); opacity: 0; }
  100% { transform: scale(1); opacity: 1; }
}
.celeb-sub {
  margin-top: 8px;
  font-size: 15px;
  font-weight: 600;
  color: var(--gc-muted-foreground);
}

.result-stars {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 14px;
  margin: 22px 0 6px;
}
.result-star {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: star-pop 0.7s cubic-bezier(0.22, 1.4, 0.36, 1) both;
}
.result-star svg { width: 48px; height: 48px; }
.result-star.filled {
  color: var(--gc-warning);
  filter: drop-shadow(0 4px 10px rgba(245,158,11,0.5));
}
.result-star.filled svg { fill: currentColor; }
.result-star.empty { color: #D6DEE8; }
.result-star.empty svg { fill: none; stroke: currentColor; stroke-width: 2; }
@keyframes star-pop {
  0% { transform: scale(0) rotate(-30deg); opacity: 0; }
  70% { transform: scale(1.25) rotate(8deg); }
  100% { transform: scale(1) rotate(0deg); opacity: 1; }
}
.star-score {
  text-align: center;
  font-size: 17px;
  font-weight: 800;
  color: var(--gc-warning);
  margin-top: 4px;
}
.star-score b { font-size: 22px; }

.rating-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin: 18px auto 4px;
  flex-wrap: wrap;
  animation: badge-shine 0.8s ease-out 0.6s both;
}
.rating-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 52px;
  height: 52px;
  padding: 0 14px;
  border-radius: 16px;
  font-size: 26px;
  font-weight: 900;
  color: #F59E0B;
  background: linear-gradient(135deg, #FEF3C7, #FDE68A);
  border: 2px solid rgba(245, 158, 11, 0.4);
  box-shadow: 0 4px 12px rgba(245, 158, 11, 0.25);
  letter-spacing: 0.5px;
}
.rating-title {
  font-size: 17px;
  font-weight: 800;
  color: var(--gc-foreground);
}
.rating-voice-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
  height: 38px;
  padding: 0 14px;
  border-radius: 999px;
  background: var(--gc-card);
  border: 1.5px solid rgba(79, 140, 255, 0.25);
  color: var(--gc-primary);
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(79, 140, 255, 0.08);
  transition: transform 0.12s;
}
.rating-voice-btn:active { transform: scale(0.95); }
.rating-voice-btn svg { width: 16px; height: 16px; }

.record-badge {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  margin: 14px auto 4px;
  padding: 8px 16px;
  border-radius: 999px;
  background: linear-gradient(135deg, #FFF1B8 0%, #FFD966 100%);
  border: 1.5px solid rgba(245,158,11,0.4);
  box-shadow: 0 4px 14px rgba(245,158,11,0.28);
  color: #9A6A00;
  font-size: 13px;
  font-weight: 800;
  max-width: max-content;
  animation: badge-shine 1.2s ease-out both;
}
@keyframes badge-shine {
  0% { transform: scale(0.8); opacity: 0; }
  60% { transform: scale(1.08); }
  100% { transform: scale(1); opacity: 1; }
}

.stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 18px;
}
.stat-card {
  background: var(--gc-card);
  border-radius: var(--gc-radius-lg);
  box-shadow: var(--gc-shadow-md);
  border: 1px solid rgba(79,140,255,0.06);
  padding: 14px 12px 13px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 7px;
  min-height: 118px;
}
.stat-icon {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
}
.stat-icon.green { background: linear-gradient(135deg, #4ADE80, #22C55E); box-shadow: 0 4px 10px rgba(34,197,94,0.32); }
.stat-icon.blue { background: linear-gradient(135deg, #7BA8FF, #4F8CFF); box-shadow: 0 4px 10px rgba(79,140,255,0.32); }
.stat-icon.gold { background: linear-gradient(135deg, #FFD166, #F59E0B); box-shadow: 0 4px 10px rgba(245,158,11,0.32); }
.stat-icon.purple { background: linear-gradient(135deg, #C4B5FD, #A78BFA); box-shadow: 0 4px 10px rgba(167,139,250,0.32); }
.stat-value { font-size: 24px; font-weight: 800; color: var(--gc-foreground); line-height: 1; }
.stat-value small { font-size: 14px; font-weight: 700; color: var(--gc-muted-foreground); }
.stat-label { font-size: 13px; font-weight: 700; color: var(--gc-muted-foreground); }

.ring-stat { position: relative; width: 48px; height: 48px; }
.ring-stat svg { transform: rotate(-90deg); width: 48px; height: 48px; }
.ring-stat .track { fill: none; stroke: rgba(34,197,94,0.16); stroke-width: 5; }
.ring-stat .fill {
  fill: none;
  stroke: var(--gc-success);
  stroke-width: 5;
  stroke-linecap: round;
  stroke-dasharray: 138.2;
  transition: stroke-dashoffset 1s ease;
}
.ring-stat .ring-label {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 800;
  color: var(--gc-success);
}
.ring-row { display: flex; align-items: center; justify-content: center; gap: 8px; width: 100%; }
.ring-text { display: flex; flex-direction: column; align-items: flex-start; }
.ring-text b { font-size: 20px; font-weight: 800; color: var(--gc-success); line-height: 1; }
.ring-text small { font-size: 12px; font-weight: 700; color: var(--gc-muted-foreground); margin-top: 2px; }

.score-detail {
  margin-top: 12px;
  padding: 12px;
  border-radius: var(--gc-radius-md);
  background: var(--gc-card);
  box-shadow: var(--gc-shadow-sm);
}
.score-detail-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}
.score-detail-title { font-size: 14px; font-weight: 800; }
.score-detail-tag {
  font-size: 12px;
  padding: 3px 10px;
  border-radius: 999px;
  font-weight: 700;
  background: rgba(167,139,250,0.1);
  color: var(--gc-logic);
}
.score-detail-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  color: var(--gc-muted-foreground);
  padding: 5px 0;
  border-bottom: 1px solid var(--gc-border);
}
.score-detail-row:last-child { border-bottom: none; }
.score-detail-row .val { font-weight: 700; color: var(--gc-foreground); }
.score-detail-row .val.success { color: var(--gc-success); }

.encourage-wrap {
  display: flex;
  align-items: flex-end;
  gap: 8px;
  margin-top: 18px;
}
.deer-avatar {
  flex-shrink: 0;
  width: 56px;
  height: 64px;
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-end;
}
.deer-head {
  width: 46px;
  height: 42px;
  border-radius: 50% 50% 46% 46%;
  background: linear-gradient(180deg, #D9A77A, #C2895C);
  position: relative;
  box-shadow: 0 4px 10px rgba(168,124,74,0.3);
}
.deer-ear {
  position: absolute;
  top: -8px;
  width: 14px;
  height: 18px;
  background: linear-gradient(180deg, #C2895C, #A86B3E);
  border-radius: 50% 50% 40% 40%;
}
.deer-ear.left { left: 6px; transform: rotate(-22deg); }
.deer-ear.right { right: 6px; transform: rotate(22deg); }
.deer-eye {
  position: absolute;
  top: 14px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #3A2A1A;
}
.deer-eye.left { left: 11px; }
.deer-eye.right { right: 11px; }
.deer-nose {
  position: absolute;
  bottom: 8px;
  left: 50%;
  transform: translateX(-50%);
  width: 8px;
  height: 6px;
  border-radius: 50%;
  background: #7A4A2E;
}
.speech-bubble {
  flex: 1;
  background: var(--gc-card);
  border-radius: var(--gc-radius-lg);
  border-top-left-radius: 6px;
  padding: 14px 16px;
  box-shadow: var(--gc-shadow-md);
  border: 1px solid rgba(79,140,255,0.08);
  position: relative;
}
.speech-title { font-size: 16px; font-weight: 800; color: var(--gc-primary); margin-bottom: 4px; }
.speech-text { font-size: 14px; font-weight: 600; color: var(--gc-foreground); line-height: 1.5; }

.result-actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 24px;
}
.result-btn {
  width: 100%;
  min-height: 54px;
  border-radius: var(--gc-radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 17px;
  font-weight: 800;
  cursor: pointer;
  border: none;
  transition: transform 0.12s;
}
.result-btn:active { transform: scale(0.97); }
.result-btn svg { width: 22px; height: 22px; }
.btn-primary {
  background: linear-gradient(135deg, #6FA5FF, #4F8CFF);
  color: white;
  box-shadow: 0 8px 20px rgba(79,140,255,0.4);
}
.btn-secondary {
  background: var(--gc-card);
  color: var(--gc-primary);
  border: 1.5px solid rgba(79,140,255,0.35);
  box-shadow: var(--gc-shadow-sm);
}
/* 商店引导按钮：金色金币感 + 发光呼吸动画，吸引小朋友点击 */
.btn-shop-cta {
  background: linear-gradient(135deg, #FBBF24 0%, #F59E0B 60%, #D97706 100%);
  color: white;
  box-shadow: 0 8px 20px rgba(245,158,11,0.45);
  animation: shop-cta-glow 1.8s ease-in-out infinite;
  border: 2px solid rgba(255,255,255,0.4);
}
@keyframes shop-cta-glow {
  0%, 100% { box-shadow: 0 6px 18px rgba(245,158,11,0.4); transform: translateY(0); }
  50% { box-shadow: 0 12px 28px rgba(245,158,11,0.6); transform: translateY(-2px); }
}
.btn-link {
  background: transparent;
  color: var(--gc-muted-foreground);
  font-size: 15px;
  font-weight: 700;
  min-height: 42px;
  box-shadow: none;
}

.daily-bonus-card {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  background: linear-gradient(135deg, #FEF3C7 0%, #FDE68A 100%);
  border-radius: var(--gc-radius-lg);
  margin: 12px 0 10px;
  border: 1px solid rgba(245,158,11,0.3);
  position: relative;
  overflow: hidden;
}
.daily-bonus-card::before {
  content: '';
  position: absolute;
  top: -20px; right: -20px;
  width: 80px; height: 80px;
  background: rgba(255,255,255,0.3);
  border-radius: 50%;
}
.bonus-icon {
  width: 44px; height: 44px;
  border-radius: 12px;
  background: rgba(217,119,6,0.2);
  color: #B45309;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  position: relative;
  z-index: 1;
}
.bonus-content { flex: 1; position: relative; z-index: 1; }
.bonus-title { font-size: 14px; font-weight: 800; color: #92400E; line-height: 1.3; }
.bonus-desc { font-size: 11px; color: #B45309; line-height: 1.3; margin-top: 2px; opacity: 0.85; }
.bonus-reward {
  display: flex; align-items: center; gap: 3px;
  padding: 5px 10px;
  background: rgba(255,255,255,0.7);
  border-radius: 999px;
  font-size: 12px; font-weight: 800;
  color: #B45309;
  position: relative; z-index: 1;
}

.daily-progress-section {
  background: var(--gc-card);
  border-radius: var(--gc-radius-lg);
  padding: 14px 16px;
  box-shadow: var(--gc-shadow-sm);
  margin-bottom: 12px;
  border: 1px solid rgba(79,140,255,0.1);
}
.daily-progress-top {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 10px;
}
.dp-item { display: flex; flex-direction: column; gap: 2px; }
.dp-item:last-child { align-items: flex-end; }
.dp-label { font-size: 11px; color: var(--gc-muted-foreground); font-weight: 600; }
.dp-value { font-size: 18px; font-weight: 800; color: var(--gc-foreground); }
.daily-progress-bar {
  height: 10px;
  border-radius: 999px;
  background: var(--gc-muted);
  overflow: hidden;
  margin-bottom: 12px;
}
.dp-fill {
  height: 100%;
  border-radius: 999px;
  background: linear-gradient(90deg, #6FA5FF, var(--gc-primary), #22C55E);
  position: relative;
  transition: width 0.3s ease;
}
.dp-fill::after {
  content: '';
  position: absolute;
  top: 0; bottom: 0;
  width: 30%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.6), transparent);
  animation: dp-shimmer 1.5s linear infinite;
}
@keyframes dp-shimmer {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(400%); }
}
.daily-stats-row {
  display: flex;
  gap: 8px;
  padding-top: 10px;
  border-top: 1px dashed var(--gc-border);
}
.ds-item {
  flex: 1;
  display: flex; align-items: center; justify-content: center;
  gap: 4px;
  padding: 6px 8px;
  border-radius: 10px;
  font-size: 12px;
  font-weight: 600;
}
.ds-item b { font-weight: 800; font-size: 14px; }
.ds-item.correct { background: rgba(34,197,94,0.1); color: var(--gc-success); }
.ds-item.wrong { background: rgba(239,68,68,0.1); color: var(--gc-danger); }
.ds-item.combo { background: rgba(245,158,11,0.1); color: var(--gc-warning); }

.daily-q-diff {
  font-size: 11px;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  gap: 3px;
}
.daily-q-diff.diff-easy { background: rgba(34,197,94,0.12); color: var(--gc-success); }
.daily-q-diff.diff-medium { background: rgba(245,158,11,0.12); color: var(--gc-warning); }
.daily-q-diff.diff-hard { background: rgba(239,68,68,0.12); color: var(--gc-danger); }

.daily-hint-card {
  margin-top: 12px;
  padding: 12px 14px;
  background: linear-gradient(135deg, rgba(254,243,199,0.5), rgba(253,230,138,0.5));
  border-radius: var(--gc-radius-md);
  display: flex;
  align-items: center;
  gap: 10px;
  border: 1px solid rgba(245,158,11,0.2);
}
.hint-icon {
  width: 36px; height: 36px;
  border-radius: 10px;
  background: rgba(245,158,11,0.15);
  color: var(--gc-warning);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.hint-text { flex: 1; min-width: 0; }
.hint-title { font-size: 12px; font-weight: 800; color: #92400E; }
.hint-desc { font-size: 11px; color: #B45309; margin-top: 1px; opacity: 0.8; }
.hint-btn-small {
  padding: 6px 10px;
  border-radius: 8px;
  background: var(--gc-warning);
  color: white;
  border: none;
  font-size: 11px;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 4px;
  flex-shrink: 0;
}
.hint-btn-small:active { transform: scale(0.95); }

.daily-bottom-bar {
  position: fixed;
  left: 0; right: 0; bottom: 0;
  padding: 12px 16px calc(12px + env(safe-area-inset-bottom, 0px));
  background: linear-gradient(180deg, rgba(248,250,252,0) 0%, rgba(248,250,252,0.95) 20%, var(--gc-background) 50%);
  display: flex;
  gap: 10px;
  z-index: 40;
}
.daily-bottom-bar .submit-btn {
  flex: 1;
  height: 52px;
  border-radius: var(--gc-radius-lg);
  border: none;
  background: linear-gradient(135deg, #4F8CFF 0%, #3B6FD9 100%);
  color: white;
  font-size: 16px;
  font-weight: 800;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  box-shadow: 0 6px 20px rgba(79,140,255,0.35);
  transition: all 0.15s ease;
}
.daily-bottom-bar .submit-btn:active { transform: scale(0.97); }
.daily-bottom-bar .skip-btn {
  width: 90px;
  height: 52px;
  border-radius: var(--gc-radius-lg);
  border: 2px solid var(--gc-border);
  background: var(--gc-card);
  color: var(--gc-muted-foreground);
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  transition: all 0.15s ease;
}
.daily-bottom-bar .skip-btn:active { transform: scale(0.97); }

/* ===== 每日挑战准备界面 ===== */
.daily-ready-screen {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background:
    radial-gradient(120% 50% at 50% -10%, #FFE4D6 0%, rgba(255,228,214,0) 55%),
    linear-gradient(180deg, #FFF8F0 0%, #FFFCF7 45%, #FFF9F0 100%);
  padding: 0 0 calc(28px + env(safe-area-inset-bottom));
}

.daily-ready-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
}

.daily-ready-title {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 18px;
  font-weight: 800;
  color: var(--gc-foreground);
}

.ready-icon {
  font-size: 22px;
}

.daily-ready-content {
  flex: 1;
  padding: 20px 20px 0;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.daily-ready-banner {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 24px 20px;
  background: linear-gradient(135deg, #FF7043 0%, #FF5722 50%, #E64A19 100%);
  border-radius: 20px;
  color: white;
  box-shadow: 0 10px 30px rgba(255, 87, 34, 0.3);
  position: relative;
  overflow: hidden;
}

.daily-ready-banner::before {
  content: '';
  position: absolute;
  top: -40%;
  right: -10%;
  width: 140px;
  height: 140px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.2) 0%, transparent 70%);
  border-radius: 50%;
}

.ready-banner-icon {
  width: 64px;
  height: 64px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  backdrop-filter: blur(4px);
  border: 2px solid rgba(255, 255, 255, 0.3);
  position: relative;
  z-index: 1;
}

.ready-banner-text {
  flex: 1;
  position: relative;
  z-index: 1;
}

.ready-banner-title {
  font-size: 20px;
  font-weight: 800;
  margin-bottom: 4px;
}

.ready-banner-sub {
  font-size: 13px;
  opacity: 0.9;
  line-height: 1.4;
}

.daily-info-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}

.daily-info-card {
  background: var(--gc-card);
  border-radius: 16px;
  padding: 16px 8px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  box-shadow: var(--gc-shadow-sm);
  border: 1px solid var(--gc-border);
}

.info-icon {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
}

.info-icon.blue {
  background: linear-gradient(135deg, #7BA8FF, #4F8CFF);
  box-shadow: 0 4px 10px rgba(79, 140, 255, 0.3);
}

.info-icon.orange {
  background: linear-gradient(135deg, #FFB347, #F59E0B);
  box-shadow: 0 4px 10px rgba(245, 158, 11, 0.3);
}

.info-icon.gold {
  background: linear-gradient(135deg, #FFD166, #F59E0B);
  box-shadow: 0 4px 10px rgba(245, 158, 11, 0.3);
}

.info-value {
  font-size: 14px;
  font-weight: 800;
  color: var(--gc-foreground);
  text-align: center;
}

.info-label {
  font-size: 10px;
  color: var(--gc-muted-foreground);
  font-weight: 600;
}

.daily-ready-tip {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 14px 16px;
  background: linear-gradient(135deg, rgba(254, 243, 199, 0.6), rgba(253, 230, 138, 0.6));
  border-radius: 14px;
  border: 1px solid rgba(245, 158, 11, 0.25);
}

.ready-tip-icon {
  font-size: 20px;
  flex-shrink: 0;
}

.ready-tip-text {
  font-size: 12px;
  color: #92400E;
  line-height: 1.5;
  font-weight: 600;
}

.daily-ready-bottom {
  padding: 20px 20px 0;
}

/* 今日已完成提示卡片 */
.daily-done-today-tip {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 18px;
  background: linear-gradient(135deg, #DCFCE7 0%, #BBF7D0 100%);
  border-radius: 16px;
  border: 1px solid rgba(34, 197, 94, 0.3);
  box-shadow: 0 4px 14px rgba(34, 197, 94, 0.15);
}
.daily-done-today-tip .done-tip-icon {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: rgba(34, 197, 94, 0.18);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #16A34A;
  flex-shrink: 0;
}
.daily-done-today-tip .done-tip-text { flex: 1; min-width: 0; }
.daily-done-today-tip .done-tip-title {
  font-size: 15px;
  font-weight: 800;
  color: #15803D;
  margin-bottom: 4px;
}
.daily-done-today-tip .done-tip-desc {
  font-size: 12px;
  color: #166534;
  line-height: 1.5;
}
.daily-done-today-tip .done-tip-desc b {
  color: #16A34A;
  font-weight: 800;
  font-size: 14px;
}

.start-challenge-btn {
  width: 100%;
  min-height: 60px;
  border-radius: 18px;
  border: none;
  background: linear-gradient(135deg, #FF7043 0%, #FF5722 50%, #E64A19 100%);
  color: white;
  font-size: 19px;
  font-weight: 800;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  box-shadow: 0 10px 28px rgba(255, 87, 34, 0.4);
  transition: all 0.15s ease;
  animation: start-btn-pulse 2s ease-in-out infinite;
}

.start-challenge-btn:active {
  transform: scale(0.97);
  box-shadow: 0 6px 16px rgba(255, 87, 34, 0.3);
}

/* 今日已完成时的禁用状态 */
.start-challenge-btn.disabled,
.start-challenge-btn:disabled {
  background: linear-gradient(135deg, #CBD5E1 0%, #94A3B8 100%);
  cursor: not-allowed;
  animation: none;
  box-shadow: 0 4px 12px rgba(148, 163, 184, 0.3);
  opacity: 0.85;
}
.start-challenge-btn.disabled:active,
.start-challenge-btn:disabled:active {
  transform: none;
}

@keyframes start-btn-pulse {
  0%, 100% { box-shadow: 0 10px 28px rgba(255, 87, 34, 0.4); }
  50% { box-shadow: 0 14px 36px rgba(255, 87, 34, 0.55); }
}

/* 答题界面初始隐藏 */
.daily-game-screen {
  display: none;
  min-height: 100vh;
  padding-bottom: 80px;
}