/* ═══════════════════════════════════════════════════════════════════════
   卡塔音乐 · 后台管理面板 — Admin Dashboard Styles
   暗色主题 · 玻璃拟态 · 全响应式
   ═══════════════════════════════════════════════════════════════════════ */

/* ── Overlay container ── */
.admin-overlay {
  position: fixed;
  inset: 0;
  z-index: 10000;
  background: rgba(0, 0, 0, 0);
  pointer-events: none;
  transition: background 0.4s ease;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}
.admin-overlay.active {
  background: rgba(0, 0, 0, 0.92);
  pointer-events: auto;
}

.admin-shell {
  min-height: 100vh;
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.45s cubic-bezier(0.22, 1, 0.36, 1),
              transform 0.45s cubic-bezier(0.22, 1, 0.36, 1);
  padding-bottom: 60px;
}
.admin-overlay.active .admin-shell {
  opacity: 1;
  transform: translateY(0);
}

/* ── Header bar — acrylic ── */
.admin-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: linear-gradient(180deg,
    rgba(45,32,12,0.9) 0%,
    rgba(28,25,20,0.88) 100%);
  backdrop-filter: blur(22px) saturate(180%);
  -webkit-backdrop-filter: blur(22px) saturate(180%);
  border-bottom: 1px solid rgba(250,140,22,0.16);
  box-shadow: 0 2px 20px rgba(0,0,0,0.3);
  padding: 0;
}
.admin-header-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.admin-back-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg,
    rgba(250,140,22,0.06) 0%,
    rgba(255,255,255,0.03) 100%);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(250,140,22,0.12);
  color: #bfbfbf;
  padding: 9px 18px;
  border-radius: 24px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 500;
  transition: all 0.25s ease;
  white-space: nowrap;
  -webkit-tap-highlight-color: transparent;
}
.admin-back-btn:hover {
  background: linear-gradient(135deg,
    rgba(250,140,22,0.12) 0%,
    rgba(255,255,255,0.06) 100%);
  color: #fff;
  border-color: rgba(250,140,22,0.25);
  box-shadow: 0 0 16px rgba(250,140,22,0.08);
  transform: translateX(-3px);
}
.admin-back-btn:active {
  transform: scale(0.96);
}
.admin-title-group {
  display: flex;
  align-items: center;
  gap: 12px;
}
.admin-title-icon {
  font-size: 28px;
  animation: admin-icon-pulse 3s ease-in-out infinite;
}
@keyframes admin-icon-pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.12); }
}
.admin-title {
  font-size: 20px;
  font-weight: 700;
  color: #fff;
  letter-spacing: -0.3px;
}
.admin-title small {
  display: block;
  font-size: 11px;
  font-weight: 400;
  color: #8c8c8c;
  letter-spacing: 0;
  margin-top: 1px;
}
.admin-header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.admin-refresh-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(250, 140, 22, 0.12);
  border: 1px solid rgba(250, 140, 22, 0.25);
  color: #fa8c16;
  padding: 9px 16px;
  border-radius: 24px;
  cursor: pointer;
  font-size: 13px;
  font-weight: 600;
  transition: all 0.2s ease;
  white-space: nowrap;
}
.admin-refresh-btn:hover {
  background: rgba(250, 140, 22, 0.2);
  border-color: #fa8c16;
  box-shadow: 0 0 16px rgba(250, 140, 22, 0.2);
}
.admin-refresh-btn:active {
  transform: scale(0.95);
}
.admin-refresh-btn.spinning .admin-refresh-icon {
  animation: spin 0.8s linear infinite;
}
.admin-refresh-icon {
  display: inline-block;
  font-size: 15px;
}

/* ── Main content grid ── */
.admin-content {
  max-width: 1280px;
  margin: 0 auto;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 22px;
}

/* ── Section headers ── */
.admin-section-title {
  font-size: 15px;
  font-weight: 600;
  color: #bfbfbf;
  letter-spacing: 0.5px;
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 2px;
}
.admin-section-title::after {
  content: '';
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, rgba(250,140,22,0.25), transparent);
}

/* ── Stats cards row ── */
.admin-stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.admin-stat-card {
  background: linear-gradient(145deg,
    rgba(250,140,22,0.1) 0%,
    rgba(255,255,255,0.07) 30%,
    rgba(255,255,255,0.035) 70%,
    rgba(250,140,22,0.04) 100%);
  backdrop-filter: blur(14px) saturate(130%);
  -webkit-backdrop-filter: blur(14px) saturate(130%);
  border: 1px solid rgba(250,140,22,0.14);
  border-top: 1px solid rgba(250,140,22,0.26);
  border-radius: 16px;
  padding: 22px;
  position: relative;
  overflow: hidden;
  transition: all 0.35s cubic-bezier(0.22, 1, 0.36, 1);
  cursor: default;
  box-shadow:
    0 3px 18px rgba(0,0,0,0.22),
    inset 0 1px 0 rgba(250,140,22,0.08);
}
/* Acrylic shine stripe */
.admin-stat-card::after {
  content: '';
  position: absolute;
  top: 0;
  left: 20%;
  width: 40%;
  height: 1px;
  background: linear-gradient(90deg,
    transparent,
    rgba(250,140,22,0.4),
    rgba(255,255,255,0.25),
    transparent);
  pointer-events: none;
}
.admin-stat-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  border-radius: 3px 3px 0 0;
  background: linear-gradient(90deg, #fa8c16, #ffa940);
  opacity: 0.5;
  transition: opacity 0.35s ease;
}
.admin-stat-card:hover {
  border-color: rgba(250,140,22,0.25);
  transform: translateY(-3px);
  box-shadow:
    0 8px 32px rgba(0,0,0,0.35),
    0 0 20px rgba(250,140,22,0.08),
    inset 0 1px 0 rgba(250,140,22,0.1);
}
.admin-stat-card:hover::before {
  opacity: 1;
}
/* Subtle per-card color accent on hover glow */
.admin-stat-card:nth-child(1):hover { box-shadow: 0 8px 32px rgba(0,0,0,0.35), 0 0 24px rgba(250,140,22,0.12); }
.admin-stat-card:nth-child(2):hover { box-shadow: 0 8px 32px rgba(0,0,0,0.35), 0 0 24px rgba(24,144,255,0.12); }
.admin-stat-card:nth-child(3):hover { box-shadow: 0 8px 32px rgba(0,0,0,0.35), 0 0 24px rgba(82,196,26,0.12); }
.admin-stat-card:nth-child(4):hover { box-shadow: 0 8px 32px rgba(0,0,0,0.35), 0 0 24px rgba(235,47,150,0.12); }

.admin-stat-icon {
  font-size: 28px;
  margin-bottom: 10px;
  display: block;
  position: relative;
  z-index: 1;
}
.admin-stat-label {
  font-size: 12px;
  color: #8c8c8c;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 6px;
  position: relative;
  z-index: 1;
}
.admin-stat-value {
  font-size: 36px;
  font-weight: 800;
  color: #fff;
  letter-spacing: -1px;
  line-height: 1;
  font-variant-numeric: tabular-nums;
  transition: all 0.3s ease;
  position: relative;
  z-index: 1;
}
.admin-stat-sub {
  font-size: 12px;
  color: #595959;
  margin-top: 8px;
  position: relative;
  z-index: 1;
}
.admin-stat-sub span {
  color: #fa8c16;
  font-weight: 600;
}

/* ── Two-column layout ── */
.admin-grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

/* ── Panel card — acrylic frosted glass ── */
.admin-panel {
  background: linear-gradient(145deg,
    rgba(250,140,22,0.1) 0%,
    rgba(255,255,255,0.07) 25%,
    rgba(255,255,255,0.04) 60%,
    rgba(250,140,22,0.05) 100%);
  backdrop-filter: blur(18px) saturate(140%);
  -webkit-backdrop-filter: blur(18px) saturate(140%);
  border: 1px solid rgba(250,140,22,0.14);
  border-top: 1px solid rgba(250,140,22,0.24);
  border-radius: 16px;
  padding: 22px;
  overflow: hidden;
  position: relative;
  box-shadow:
    0 4px 24px rgba(0,0,0,0.25),
    0 1px 0 inset rgba(250,140,22,0.08),
    0 0 0 1px rgba(250,140,22,0.04) inset;
}
/* Acrylic glare stripe */
.admin-panel::after {
  content: '';
  position: absolute;
  top: -50%;
  left: -30%;
  width: 60%;
  height: 200%;
  background: linear-gradient(105deg,
    transparent 40%,
    rgba(255,255,255,0.025) 45%,
    rgba(255,255,255,0.05) 50%,
    rgba(255,255,255,0.025) 55%,
    transparent 60%);
  transform: rotate(12deg);
  pointer-events: none;
  z-index: 0;
}
.admin-panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
  position: relative;
  z-index: 1;
}
.admin-panel-title {
  font-size: 14px;
  font-weight: 700;
  color: #d9d9d9;
  display: flex;
  align-items: center;
  gap: 8px;
  position: relative;
  z-index: 1;
}

/* ── Chart area ── */
.admin-chart-container {
  position: relative;
  width: 100%;
  height: 220px;
  z-index: 1;
}
.admin-chart-container canvas {
  width: 100%;
  height: 100%;
}
.chart-legend {
  display: flex;
  gap: 20px;
  margin-top: 10px;
  justify-content: center;
  position: relative;
  z-index: 1;
}
.chart-legend-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  color: #8c8c8c;
}
.chart-legend-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  display: inline-block;
}
.chart-legend-dot.unique { background: #fa8c16; }
.chart-legend-dot.total { background: rgba(250,140,22,0.3); }

/* ── Hourly wave chart ── */
.admin-hourly-chart-container {
  position: relative;
  width: 100%;
  height: 280px;
  z-index: 1;
}
.admin-hourly-chart-container canvas {
  width: 100%;
  height: 100%;
}
.hourly-peak-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: rgba(250,140,22,0.12);
  border: 1px solid rgba(250,140,22,0.2);
  color: #fa8c16;
  padding: 4px 12px;
  border-radius: 14px;
  font-size: 11px;
  font-weight: 600;
  white-space: nowrap;
}
.hourly-xlabels {
  display: flex;
  justify-content: space-between;
  padding: 0 48px 0 48px;
  margin-top: 4px;
  position: relative;
  z-index: 1;
}
.hourly-xlabels span {
  font-size: 10px;
  color: #595959;
  min-width: 40px;
  text-align: center;
}

/* ── Rankings ── */
.admin-rank-list {
  list-style: none;
  counter-reset: rank;
  position: relative;
  z-index: 1;
}
.admin-rank-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border-radius: 10px;
  transition: all 0.25s ease;
  margin-bottom: 2px;
  border: 1px solid transparent;
}
.admin-rank-item:hover {
  background: linear-gradient(135deg,
    rgba(250,140,22,0.06) 0%,
    rgba(255,255,255,0.03) 100%);
  border-color: rgba(250,140,22,0.08);
  box-shadow:
    0 2px 10px rgba(0,0,0,0.18),
    inset 0 1px 0 rgba(250,140,22,0.04);
}
.admin-rank-num {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 800;
  color: #fff;
  flex-shrink: 0;
}
.admin-rank-item:nth-child(1) .admin-rank-num { background: linear-gradient(135deg, #fa8c16, #ffa940); }
.admin-rank-item:nth-child(2) .admin-rank-num { background: linear-gradient(135deg, #8c8c8c, #bfbfbf); }
.admin-rank-item:nth-child(3) .admin-rank-num { background: linear-gradient(135deg, #ad6800, #d48806); }
.admin-rank-item:nth-child(n+4) .admin-rank-num { background: rgba(255,255,255,0.08); color: #8c8c8c; }

.admin-rank-info {
  flex: 1;
  min-width: 0;
}
.admin-rank-title {
  font-size: 13px;
  font-weight: 500;
  color: #d9d9d9;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.admin-rank-sub {
  font-size: 11px;
  color: #8c8c8c;
}
.admin-rank-count {
  font-size: 14px;
  font-weight: 700;
  color: #fa8c16;
  flex-shrink: 0;
  font-variant-numeric: tabular-nums;
}

/* ── Channel usage bar ── */
.admin-channel-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 0;
  position: relative;
  z-index: 1;
}
.admin-channel-name {
  width: 120px;
  font-size: 12px;
  color: #bfbfbf;
  flex-shrink: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.admin-channel-bar-wrap {
  flex: 1;
  height: 22px;
  background: rgba(250,140,22,0.05);
  border: 1px solid rgba(250,140,22,0.06);
  border-radius: 11px;
  overflow: hidden;
  position: relative;
}
.admin-channel-bar {
  height: 100%;
  border-radius: 11px;
  transition: width 0.8s cubic-bezier(0.22, 1, 0.36, 1);
  position: relative;
  min-width: 0;
}
.admin-channel-bar.hot { background: linear-gradient(90deg, #fa8c16, #ffa940); }
.admin-channel-bar.warm { background: linear-gradient(90deg, #ff7a45, #fa8c16); }
.admin-channel-bar.cool { background: linear-gradient(90deg, #597ef7, #85a5ff); }
.admin-channel-bar.neutral { background: rgba(255,255,255,0.12); }
.admin-channel-count {
  font-size: 11px;
  color: #8c8c8c;
  flex-shrink: 0;
  width: 56px;
  text-align: right;
  font-variant-numeric: tabular-nums;
}

/* ── API status grid ── */
.admin-api-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 10px;
  position: relative;
  z-index: 1;
}
.admin-api-card {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  border-radius: 12px;
  background: linear-gradient(135deg,
    rgba(250,140,22,0.07) 0%,
    rgba(255,255,255,0.05) 50%,
    rgba(255,255,255,0.025) 100%);
  backdrop-filter: blur(10px) saturate(120%);
  -webkit-backdrop-filter: blur(10px) saturate(120%);
  border: 1px solid rgba(250,140,22,0.11);
  border-top: 1px solid rgba(250,140,22,0.18);
  transition: all 0.25s ease;
  box-shadow:
    0 2px 10px rgba(0,0,0,0.18),
    inset 0 1px 0 rgba(250,140,22,0.05);
}
.admin-api-card[data-url] {
  cursor: pointer;
}
.admin-api-card:hover {
  border-color: rgba(250,140,22,0.25);
  background: linear-gradient(135deg,
    rgba(250,140,22,0.12) 0%,
    rgba(255,255,255,0.07) 50%,
    rgba(255,255,255,0.04) 100%);
  box-shadow:
    0 4px 16px rgba(0,0,0,0.25),
    0 0 12px rgba(250,140,22,0.1);
  transform: translateY(-1px);
}
.admin-api-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
  position: relative;
}
.admin-api-dot.online {
  background: #52c41a;
  box-shadow: 0 0 8px rgba(82, 196, 26, 0.5);
}
.admin-api-dot.offline {
  background: #ff4d4f;
  box-shadow: 0 0 8px rgba(255, 77, 79, 0.4);
}
.admin-api-dot.checking {
  background: #faad14;
  animation: dot-pulse 1s ease-in-out infinite;
}
@keyframes dot-pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(1.5); }
}
.admin-api-info {
  flex: 1;
  min-width: 0;
}
.admin-api-name {
  font-size: 12px;
  font-weight: 500;
  color: #d9d9d9;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.admin-api-ms {
  font-size: 10px;
  color: #595959;
}

/* ── API header right group ── */
.admin-api-header-right {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

/* ── Interval selector ── */
.admin-interval-select {
  background: linear-gradient(135deg,
    rgba(250,140,22,0.06) 0%,
    rgba(255,255,255,0.03) 100%);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  color: #bfbfbf;
  border: 1px solid rgba(250,140,22,0.12);
  border-radius: 14px;
  padding: 5px 10px;
  font-size: 11px;
  cursor: pointer;
  outline: none;
  transition: all 0.2s ease;
}
.admin-interval-select:hover {
  border-color: rgba(250,140,22,0.25);
  background: linear-gradient(135deg,
    rgba(250,140,22,0.1) 0%,
    rgba(255,255,255,0.05) 100%);
}
.admin-interval-select:focus {
  border-color: #fa8c16;
  box-shadow: 0 0 0 2px rgba(250,140,22,0.12);
}
.admin-interval-select option {
  background: #1f1a12;
  color: #d9d9d9;
}

/* ── Header spinner ── */
.admin-api-header-spinner {
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255,255,255,0.1);
  border-top-color: #fa8c16;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  flex-shrink: 0;
}

/* ── API card external link hint ── */
.admin-api-link-hint {
  font-size: 12px;
  color: rgba(250,140,22,0.3);
  flex-shrink: 0;
  transition: all 0.2s ease;
  opacity: 0;
  transform: translateX(-4px);
}
.admin-api-card:hover .admin-api-link-hint {
  opacity: 1;
  transform: translateX(0);
  color: rgba(250,140,22,0.7);
}

/* ── API card label badges ── */
.admin-api-label {
  font-size: 9px;
  font-weight: 600;
  padding: 2px 7px;
  border-radius: 8px;
  flex-shrink: 0;
  margin-left: auto;
  transition: all 0.3s ease;
}
.admin-api-label.updated {
  background: rgba(82, 196, 26, 0.12);
  color: #52c41a;
}
.admin-api-label.pending {
  background: rgba(250, 173, 20, 0.1);
  color: #faad14;
}

/* ── API summary badge ── */
.admin-api-summary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
}
.admin-api-summary.good {
  background: rgba(82, 196, 26, 0.1);
  color: #52c41a;
  border: 1px solid rgba(82, 196, 26, 0.2);
}
.admin-api-summary.warn {
  background: rgba(250, 173, 20, 0.1);
  color: #faad14;
  border: 1px solid rgba(250, 173, 20, 0.2);
}
.admin-api-summary.bad {
  background: rgba(255, 77, 79, 0.1);
  color: #ff4d4f;
  border: 1px solid rgba(255, 77, 79, 0.2);
}

/* ── Recent downloads table ── */
.admin-recent-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12px;
  position: relative;
  z-index: 1;
}
.admin-recent-table th {
  text-align: left;
  padding: 8px 10px;
  color: #595959;
  font-weight: 500;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-bottom: 1px solid rgba(250,140,22,0.1);
}
.admin-recent-table td {
  padding: 8px 10px;
  color: #bfbfbf;
  border-bottom: 1px solid rgba(250,140,22,0.04);
  white-space: nowrap;
}
.admin-recent-table tr:hover td {
  background: linear-gradient(90deg,
    rgba(250,140,22,0.04) 0%,
    rgba(255,255,255,0.02) 100%);
}
.admin-badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 10px;
  font-size: 10px;
  font-weight: 600;
}
.admin-badge.success { background: rgba(82, 196, 26, 0.12); color: #52c41a; }
.admin-badge.fail { background: rgba(255, 77, 79, 0.12); color: #ff4d4f; }

/* ── System info footer ── */
.admin-footer {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  padding: 16px 0;
  font-size: 11px;
  color: #595959;
  position: relative;
  z-index: 1;
}
.admin-footer-item {
  display: flex;
  align-items: center;
  gap: 6px;
}
.admin-footer-item strong {
  color: #8c8c8c;
  font-weight: 600;
}

/* ── Password modal ── */
.pwd-overlay {
  position: fixed;
  inset: 0;
  z-index: 20000;
  background: rgba(0, 0, 0, 0.88);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.pwd-overlay.active {
  opacity: 1;
  pointer-events: auto;
}
.pwd-dialog {
  background: linear-gradient(160deg,
    rgba(50,32,10,0.96) 0%,
    rgba(36,32,28,0.96) 30%,
    rgba(30,30,28,0.96) 60%,
    rgba(45,32,14,0.96) 100%);
  backdrop-filter: blur(24px) saturate(160%);
  -webkit-backdrop-filter: blur(24px) saturate(160%);
  border: 1px solid rgba(250,140,22,0.16);
  border-top: 1px solid rgba(250,140,22,0.28);
  border-radius: 20px;
  padding: 36px 32px 28px;
  max-width: 380px;
  width: 90%;
  text-align: center;
  transform: scale(0.9) translateY(20px);
  transition: transform 0.35s cubic-bezier(0.22, 1, 0.36, 1);
  box-shadow:
    0 20px 60px rgba(0,0,0,0.55),
    0 0 40px rgba(250,140,22,0.06),
    inset 0 1px 0 rgba(250,140,22,0.14);
}
.pwd-overlay.active .pwd-dialog {
  transform: scale(1) translateY(0);
}
.pwd-icon {
  font-size: 48px;
  margin-bottom: 16px;
  display: block;
  animation: admin-icon-pulse 2s ease-in-out infinite;
}
.pwd-title {
  font-size: 20px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 8px;
}
.pwd-subtitle {
  font-size: 13px;
  color: #8c8c8c;
  margin-bottom: 24px;
  line-height: 1.5;
}
.pwd-input {
  width: 100%;
  padding: 12px 18px;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.04);
  color: #fff;
  font-size: 16px;
  text-align: center;
  letter-spacing: 3px;
  outline: none;
  transition: all 0.25s ease;
  margin-bottom: 14px;
}
.pwd-input:focus {
  border-color: #fa8c16;
  box-shadow: 0 0 0 3px rgba(250, 140, 22, 0.1);
  background: rgba(255, 255, 255, 0.06);
}
.pwd-input::placeholder {
  color: #434343;
  letter-spacing: 1px;
}
.pwd-error {
  font-size: 12px;
  color: #ff4d4f;
  margin-bottom: 10px;
  min-height: 18px;
  transition: all 0.2s ease;
}
.pwd-btn {
  width: 100%;
  padding: 12px;
  border: none;
  border-radius: 12px;
  background: linear-gradient(135deg, #fa8c16, #ffa940);
  color: #fff;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s ease;
  -webkit-tap-highlight-color: transparent;
}
.pwd-btn:hover {
  box-shadow: 0 4px 20px rgba(250, 140, 22, 0.4);
  transform: translateY(-1px);
}
.pwd-btn:active {
  transform: scale(0.96);
}
.pwd-cancel {
  display: block;
  width: 100%;
  margin-top: 12px;
  padding: 8px;
  background: none;
  border: none;
  color: #595959;
  cursor: pointer;
  font-size: 13px;
  transition: color 0.2s;
}
.pwd-cancel:hover { color: #bfbfbf; }

/* ── Long-press indicator ── */
.longpress-indicator {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 15000;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.2s ease;
  text-align: center;
}
.longpress-indicator.show {
  opacity: 1;
}
.longpress-ring {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  border: 3px solid rgba(250, 140, 22, 0.3);
  position: relative;
  margin: 0 auto 12px;
}
.longpress-ring-fill {
  position: absolute;
  inset: -3px;
  border-radius: 50%;
  border: 3px solid #fa8c16;
  border-top-color: transparent;
  border-right-color: transparent;
  transform: rotate(-45deg);
  transition: all 0.1s linear;
  clip-path: inset(0 0 0 0);
}
.longpress-text {
  font-size: 13px;
  color: #fa8c16;
  font-weight: 600;
}

/* ── Loading skeleton for admin ── */
.admin-skeleton {
  animation: admin-sk-shimmer 1.5s ease-in-out infinite;
  background: linear-gradient(90deg, rgba(255,255,255,0.03) 25%, rgba(255,255,255,0.06) 50%, rgba(255,255,255,0.03) 75%);
  background-size: 200% 100%;
  border-radius: 8px;
}
@keyframes admin-sk-shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* ── 空状态 ── */
.admin-empty {
  text-align: center;
  padding: 40px 20px;
  color: #595959;
  font-size: 13px;
}
.admin-empty-icon {
  font-size: 36px;
  margin-bottom: 8px;
  display: block;
}

/* ═══════════════════════════════════════════════════════════════════════
   RESPONSIVE BREAKPOINTS
   ═══════════════════════════════════════════════════════════════════════ */

/* Tablet (768 - 1024px) */
@media (max-width: 1024px) {
  .admin-stats-row {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }
  .admin-grid-2 {
    grid-template-columns: 1fr;
    gap: 12px;
  }
  .admin-stat-value {
    font-size: 28px;
  }
  .admin-api-grid {
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  }
  .admin-header-inner {
    padding: 12px 16px;
  }
  .admin-content {
    padding: 16px;
    gap: 16px;
  }
}

/* Mobile (< 768px) */
@media (max-width: 768px) {
  .admin-stats-row {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }
  .admin-stat-card {
    padding: 14px;
    border-radius: 12px;
  }
  .admin-stat-value {
    font-size: 24px;
  }
  .admin-stat-icon {
    font-size: 22px;
    margin-bottom: 6px;
  }
  .admin-stat-label {
    font-size: 10px;
    margin-bottom: 4px;
  }
  .admin-stat-sub {
    font-size: 10px;
    margin-top: 4px;
  }

  .admin-grid-2 {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .admin-header-inner {
    padding: 10px 12px;
    gap: 8px;
    flex-wrap: wrap;
  }
  .admin-title {
    font-size: 16px;
  }
  .admin-title-icon {
    font-size: 22px;
  }
  .admin-back-btn {
    padding: 8px 14px;
    font-size: 12px;
    border-radius: 20px;
  }
  .admin-refresh-btn {
    padding: 8px 14px;
    font-size: 12px;
  }

  .admin-content {
    padding: 12px;
    gap: 12px;
  }

  .admin-panel {
    padding: 14px;
    border-radius: 12px;
  }

  .admin-chart-container {
    height: 160px;
  }

  .admin-hourly-chart-container {
    height: 200px;
  }
  .hourly-xlabels {
    padding: 0 24px 0 24px;
  }
  .hourly-xlabels span {
    font-size: 9px;
    min-width: 28px;
  }
  .hourly-peak-badge {
    font-size: 10px;
    padding: 3px 10px;
  }

  .admin-api-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
  }
  .admin-api-card {
    padding: 10px 12px;
  }
  .admin-api-header-right {
    gap: 6px;
  }
  .admin-interval-select {
    font-size: 10px;
    padding: 4px 7px;
  }

  .admin-channel-name {
    width: 80px;
    font-size: 11px;
  }

  .admin-recent-table {
    font-size: 10px;
  }
  .admin-recent-table th,
  .admin-recent-table td {
    padding: 6px 6px;
  }
  /* Hide less important columns on mobile */
  .admin-recent-table .col-platform,
  .admin-recent-table .col-time {
    display: none;
  }

  .pwd-dialog {
    padding: 28px 20px 22px;
    border-radius: 16px;
  }
  .pwd-icon { font-size: 36px; }
  .pwd-title { font-size: 17px; }
  .pwd-input { font-size: 14px; padding: 10px 14px; }

  .admin-footer {
    gap: 12px;
  }
}

/* Small phones (< 400px) */
@media (max-width: 400px) {
  .admin-stats-row {
    grid-template-columns: 1fr 1fr;
    gap: 8px;
  }
  .admin-stat-card {
    padding: 12px;
  }
  .admin-stat-value {
    font-size: 22px;
  }
  .admin-api-grid {
    grid-template-columns: 1fr 1fr;
  }
  .admin-title small {
    display: none;
  }
}