:root {
  --tiantian-announcement-bg: rgba(11, 28, 45, 0.97);
  --tiantian-announcement-line: rgba(94, 234, 212, 0.42);
  --tiantian-announcement-accent: #fbbf24;
  --tiantian-announcement-text: #f8fafc;
  --tiantian-announcement-muted: #cbd5e1;
  --tiantian-announcement-offset: 0px;
}

body.tiantian-announcement-page-offset {
  padding-top: var(--tiantian-announcement-offset);
}

.tiantian-announcement-bar {
  position: fixed;
  inset: 0 0 auto;
  z-index: 640;
  min-height: 36px;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 7px 12px 7px 16px;
  border-bottom: 1px solid var(--tiantian-announcement-line);
  background: var(--tiantian-announcement-bg);
  box-shadow: 0 4px 16px rgba(2, 6, 23, 0.22);
  color: var(--tiantian-announcement-text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", sans-serif;
  font-size: 13px;
  line-height: 1.45;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.tiantian-announcement-label {
  flex: 0 0 auto;
  padding: 2px 7px;
  border: 1px solid rgba(251, 191, 36, 0.42);
  border-radius: 4px;
  background: rgba(251, 191, 36, 0.13);
  color: var(--tiantian-announcement-accent);
  font-size: 11px;
  font-weight: 800;
}

.tiantian-announcement-copy {
  flex: 1 1 auto;
  min-width: 0;
  display: flex;
  align-items: baseline;
  gap: 8px;
  overflow: hidden;
}

.tiantian-announcement-title {
  flex: 0 0 auto;
  max-width: min(30vw, 260px);
  overflow: hidden;
  color: #fff;
  font-weight: 800;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.tiantian-announcement-content {
  min-width: 0;
  overflow: hidden;
  color: var(--tiantian-announcement-muted);
  text-overflow: ellipsis;
  white-space: nowrap;
}

.tiantian-announcement-close {
  flex: 0 0 auto;
  width: 26px;
  height: 26px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 5px;
  background: rgba(255, 255, 255, 0.08);
  color: #e2e8f0;
  font: 700 18px/1 -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  cursor: pointer;
}

.tiantian-announcement-close:hover {
  border-color: rgba(255, 255, 255, 0.34);
  background: rgba(255, 255, 255, 0.16);
  color: #fff;
}

.tiantian-announcement-trigger {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
}

.tiantian-announcement-trigger svg {
  width: 15px;
  height: 15px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 2;
  pointer-events: none;
}

.tiantian-announcement-trigger.has-update::after {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #fbbf24;
  box-shadow: 0 0 0 3px rgba(251, 191, 36, 0.18);
}

.tiantian-announcement-panel {
  position: fixed;
  top: 58px;
  right: 16px;
  z-index: 650;
  width: min(420px, calc(100vw - 24px));
  max-height: min(62vh, 520px);
  overflow: auto;
  border: 1px solid rgba(15, 118, 110, 0.24);
  border-radius: 8px;
  background: rgba(250, 253, 255, 0.98);
  box-shadow: 0 20px 54px rgba(15, 23, 42, 0.3);
  color: #14233b;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", sans-serif;
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.tiantian-announcement-panel[hidden] {
  display: none !important;
}

.tiantian-announcement-panel-head {
  position: sticky;
  top: 0;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 14px;
  border-bottom: 1px solid #dbe7eb;
  background: rgba(241, 250, 250, 0.98);
}

.tiantian-announcement-panel-title {
  margin: 0;
  color: #0f5f59;
  font-size: 15px;
  font-weight: 850;
}

.tiantian-announcement-panel .tiantian-announcement-close {
  border-color: #cbd9df;
  background: #fff;
  color: #334155;
}

.tiantian-announcement-panel .tiantian-announcement-close:hover {
  border-color: #94a3b8;
  background: #f1f5f9;
}

.tiantian-announcement-panel-body {
  padding: 14px;
  color: #334155;
  font-size: 13px;
  line-height: 1.8;
  overflow-wrap: anywhere;
  white-space: pre-wrap;
}

@media (max-width: 720px) {
  .tiantian-announcement-bar {
    min-height: 38px;
    gap: 7px;
    padding: 7px 8px 7px 10px;
    font-size: 12px;
  }

  .tiantian-announcement-label {
    padding: 2px 5px;
    font-size: 10px;
  }

  .tiantian-announcement-copy {
    gap: 5px;
  }

  .tiantian-announcement-title {
    max-width: 25vw;
  }

  .tiantian-announcement-panel {
    top: 54px;
    right: 10px;
    width: calc(100vw - 20px);
    max-height: 68vh;
  }
}

@media (prefers-reduced-motion: no-preference) {
  .tiantian-announcement-panel {
    animation: tiantian-announcement-in 150ms ease-out both;
  }
}

@keyframes tiantian-announcement-in {
  from {
    opacity: 0;
    transform: translateY(-5px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}