.ch-page .main-grid { grid-template-columns: minmax(0, 1fr) 280px; }
.ch-header {
  display: flex; align-items: flex-start; justify-content: space-between;
  margin-bottom: 16px; gap: 12px;
}
.ch-header h1 { font-size: 26px; margin: 0 0 4px; display: flex; align-items: center; gap: 8px; }
.ch-header p { margin: 0; color: var(--muted); font-size: 13px; }
.ch-timer { color: #ff374f; font-weight: 700; font-size: 15px; white-space: nowrap; }
.ch-timer small { display: block; color: var(--muted); font-weight: 400; font-size: 11px; text-align: right; }

.ch-grid { display: grid; grid-template-columns: 1.1fr 1fr; gap: 14px; margin-bottom: 14px; }

.ch-today {
  border: 1px solid #23295c; border-radius: 14px; background: #0b0e31;
  padding: 18px; display: grid; grid-template-columns: 1fr 1fr; gap: 16px; align-items: center;
}
.ch-today-date { color: var(--muted); font-size: 12px; margin-bottom: 8px; }
.ch-today h2 { margin: 0 0 10px; font-size: 18px; line-height: 1.35; }
.ch-today img { width: 100%; max-height: 180px; object-fit: contain; border-radius: 12px; }
.ch-progress { margin: 12px 0; }
.ch-progress-bar {
  height: 10px; background: #1a1f45; border-radius: 999px; overflow: hidden;
}
.ch-progress-bar i {
  display: block; height: 100%; background: linear-gradient(90deg, #6738d7, #9b59ff);
  border-radius: 999px; transition: width .3s;
}
.ch-progress label { display: flex; justify-content: space-between; font-size: 12px; color: var(--muted); margin-bottom: 6px; }

.ch-week {
  border: 1px solid #23295c; border-radius: 14px; background: #0b0e31; padding: 16px;
}
.ch-week h3 { margin: 0 0 14px; font-size: 15px; }
.ch-week-days { display: grid; grid-template-columns: repeat(7, 1fr); gap: 6px; text-align: center; }
.ch-day {
  padding: 10px 4px; border-radius: 10px; border: 1px solid #2b3268; background: #090d2a;
  font-size: 11px;
}
.ch-day.done { border-color: #4ade80; background: rgba(74,222,128,.08); }
.ch-day.current { border-color: #ffd32a; box-shadow: 0 0 12px rgba(255,211,42,.2); }
.ch-day-icon { font-size: 18px; display: block; margin-bottom: 4px; }
.ch-day-reward { color: #ffd32a; font-weight: 700; font-size: 10px; }

.ch-missions {
  border: 1px solid #23295c; border-radius: 14px; background: #0b0e31; padding: 16px;
  margin-bottom: 14px;
}
.ch-missions h3 { margin: 0 0 12px; font-size: 15px; }
.ch-mission {
  padding: 12px 0; border-bottom: 1px solid #1a1f45;
}
.ch-mission:last-child { border-bottom: 0; }
.ch-mission-head { display: flex; justify-content: space-between; margin-bottom: 8px; font-size: 13px; }
.ch-mission-rewards { color: var(--muted); font-size: 11px; }
.ch-mission-rewards b { color: #ffd32a; }

.ch-grand {
  border: 1px solid #39257c; border-radius: 14px; background: linear-gradient(135deg, #1a0b48, #0b0e31);
  padding: 18px; display: grid; grid-template-columns: 1fr auto; gap: 16px; align-items: center;
}
.ch-grand h3 { margin: 0 0 12px; color: #ffe000; }
.ch-prizes { display: flex; flex-wrap: wrap; gap: 12px; }
.ch-prize { text-align: center; font-size: 11px; color: var(--muted); }
.ch-prize i { display: block; font-size: 24px; font-style: normal; margin-bottom: 4px; }
.ch-grand img { width: 120px; height: 100px; object-fit: contain; }

.ch-lb-tabs { display: flex; gap: 6px; margin-bottom: 12px; }
.ch-lb-tabs button {
  flex: 1; padding: 8px; border-radius: 8px; border: 1px solid #2b3268;
  background: #12153d; color: #d8dcf5; cursor: pointer; font-size: 12px;
}
.ch-lb-tabs button.active { background: linear-gradient(#6738d7, #31147f); border-color: #6947c2; }
.ch-lb-item {
  display: grid; grid-template-columns: 28px 1fr auto; gap: 10px; align-items: center;
  padding: 10px 0; border-bottom: 1px solid #202650; font-size: 13px;
}
.ch-lb-item:last-child { border-bottom: 0; }
.ch-lb-rank { font-weight: 700; color: #8b93c4; }
.ch-lb-rank.gold { color: #ffd32a; }
.ch-lb-rank.silver { color: #b8c4d9; }
.ch-lb-rank.bronze { color: #cd7f32; }

.ch-streak { text-align: center; }
.ch-streak-box { font-size: 48px; margin: 8px 0; }
.ch-streak-days { font-size: 32px; font-weight: 800; margin: 0; }
.ch-streak p { color: var(--muted); font-size: 13px; margin: 4px 0 12px; }
.ch-streak-dots { display: flex; justify-content: center; gap: 8px; }
.ch-streak-dots i {
  width: 28px; height: 28px; border-radius: 50%; border: 2px solid #2b3268;
  display: grid; place-items: center; font-style: normal; font-size: 12px; color: transparent;
}
.ch-streak-dots i.on { border-color: #6947c2; background: linear-gradient(#6738d7, #31147f); color: #fff; }

.ch-tips { font-size: 12px; color: var(--muted); line-height: 1.6; }
.ch-tips li { margin: 6px 0; }

@media (max-width: 1180px) {
  .ch-page .main-grid { grid-template-columns: 1fr; }
  .ch-grid { grid-template-columns: 1fr; }
  .ch-today { grid-template-columns: 1fr; }
}
@media (max-width: 760px) {
  .ch-header { flex-direction: column; align-items: stretch; }
  .ch-header h1 { font-size: 22px; }
  .ch-timer { text-align: left; white-space: normal; }
  .ch-timer small { text-align: left; }
  .ch-today { padding: 14px; gap: 12px; }
  .ch-today h2 { font-size: 16px; }
  .ch-week-days { grid-template-columns: repeat(4, 1fr); gap: 5px; }
  .ch-day { padding: 8px 2px; font-size: 10px; }
  .ch-grand { grid-template-columns: 1fr; padding: 14px; }
  .ch-grand img { width: 100px; margin: 0 auto; }
  .ch-missions, .ch-week { padding: 14px; }
}