.overview-screen {
  display: flex;
  flex-direction: column;
  gap: 14px;
  height: 100%;
  min-height: 0;
  padding: 4px;
  overflow-y: auto;
}

/* ---------- header ---------- */
.overview-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 22px;
  border: 1px solid rgba(103, 232, 249, 0.24);
  border-radius: 18px;
  background: linear-gradient(120deg, rgba(34, 211, 238, 0.14), rgba(8, 18, 38, 0.66));
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06), 0 0 32px rgba(34, 211, 238, 0.1);
}

.overview-title {
  display: flex;
  align-items: center;
  gap: 14px;
}

.overview-title-icon {
  font-size: 30px;
  color: #22d3ee;
  text-shadow: 0 0 18px rgba(34, 211, 238, 0.8);
}

.overview-title h1 {
  margin: 0;
  color: #e6f7ff;
  font-size: 22px;
  letter-spacing: 2px;
}

.overview-title p {
  margin: 4px 0 0;
  color: rgba(103, 232, 249, 0.85);
  font-size: 11px;
  letter-spacing: 3px;
}

.overview-head-right {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 10px;
}

.overview-links {
  display: flex;
  gap: 14px;
}

.overview-links a {
  padding: 5px 14px;
  color: #a5f3fc;
  border: 1px solid rgba(103, 232, 249, 0.35);
  border-radius: 20px;
  background: rgba(34, 211, 238, 0.1);
  font-size: 13px;
  transition: all 0.25s ease;
}

.overview-links a:hover {
  color: #06121f;
  background: #22d3ee;
  box-shadow: 0 0 18px rgba(34, 211, 238, 0.7);
}

.overview-clock {
  display: flex;
  align-items: center;
  gap: 8px;
  color: #a5f3fc;
  font-size: 15px;
  font-variant-numeric: tabular-nums;
}

/* ---------- KPI cards ---------- */
.overview-kpis {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 14px;
}

.kpi-card {
  position: relative;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px;
  overflow: hidden;
  border: 1px solid rgba(103, 232, 249, 0.2);
  border-radius: 16px;
  background: linear-gradient(150deg, rgba(14, 30, 56, 0.85), rgba(8, 18, 38, 0.6));
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.kpi-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 30px rgba(2, 8, 23, 0.5);
}

.kpi-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  flex: 0 0 auto;
  font-size: 22px;
  border-radius: 12px;
}

.kpi-meta {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.kpi-label {
  color: rgba(214, 244, 255, 0.6);
  font-size: 12px;
}

.kpi-value {
  color: #e6f7ff;
  font-size: 24px;
  font-weight: 700;
  line-height: 1.25;
  font-variant-numeric: tabular-nums;
}

.kpi-sub {
  color: rgba(214, 244, 255, 0.72);
  font-size: 11px;
}

.kpi-corner {
  position: absolute;
  top: 0;
  right: 0;
  width: 40px;
  height: 40px;
  clip-path: polygon(100% 0, 0 0, 100% 100%);
  opacity: 0.5;
}

.tone-cyan .kpi-icon { color: #22d3ee; background: rgba(34, 211, 238, 0.14); }
.tone-cyan .kpi-corner { background: #22d3ee; }
.tone-green .kpi-icon { color: #4ade80; background: rgba(74, 222, 128, 0.14); }
.tone-green .kpi-corner { background: #4ade80; }
.tone-red .kpi-icon { color: #fb7185; background: rgba(251, 113, 133, 0.14); }
.tone-red .kpi-corner { background: #fb7185; }
.tone-purple .kpi-icon { color: #c084fc; background: rgba(192, 132, 252, 0.14); }
.tone-purple .kpi-corner { background: #c084fc; }
.tone-blue .kpi-icon { color: #60a5fa; background: rgba(96, 165, 250, 0.14); }
.tone-blue .kpi-corner { background: #60a5fa; }

/* ---------- panels row ---------- */
.overview-panels {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1.2fr;
  gap: 14px;
  flex: 1;
  min-height: 300px;
}

.ov-panel {
  display: flex;
  flex-direction: column;
  padding: 16px;
  border: 1px solid rgba(103, 232, 249, 0.2);
  border-radius: 16px;
  background: linear-gradient(160deg, rgba(14, 30, 56, 0.78), rgba(8, 18, 38, 0.6));
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

.panel-title {
  display: flex;
  align-items: center;
  gap: 10px;
  padding-bottom: 12px;
  margin-bottom: 12px;
  border-bottom: 1px solid rgba(103, 232, 249, 0.14);
}

.panel-title-bar {
  width: 4px;
  height: 16px;
  border-radius: 2px;
  background: #22d3ee;
  box-shadow: 0 0 10px rgba(34, 211, 238, 0.8);
}

.panel-title h3 {
  margin: 0;
  color: #e6f7ff;
  font-size: 15px;
}

.panel-title-tag {
  margin-inline-start: auto;
  color: #67e8f9;
  border-color: rgba(103, 232, 249, 0.3);
  background: rgba(34, 211, 238, 0.08);
  font-size: 10px;
  letter-spacing: 1px;
}

/* ---------- trend chart ---------- */
.trend-chart {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.trend-chart svg {
  flex: 1;
  width: 100%;
  min-height: 160px;
}

.trend-x {
  display: flex;
  justify-content: space-between;
  padding: 6px 26px 0;
}

.trend-x span {
  color: rgba(214, 244, 255, 0.55);
  font-size: 11px;
}

/* ---------- donut ---------- */
.donut-wrap {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

.donut-svg {
  width: 150px;
}

.donut-total {
  fill: #e6f7ff;
  font-size: 26px;
  font-weight: 700;
}

.donut-label {
  fill: rgba(214, 244, 255, 0.5);
  font-size: 11px;
}

.donut-legend {
  display: flex;
  flex-direction: column;
  gap: 6px;
  width: 100%;
  padding: 0;
  margin: 0;
  list-style: none;
}

.donut-legend li {
  display: flex;
  align-items: center;
  gap: 8px;
  color: rgba(214, 244, 255, 0.75);
  font-size: 12px;
}

.donut-legend strong {
  margin-inline-start: auto;
  color: #e6f7ff;
  font-variant-numeric: tabular-nums;
}

.legend-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

/* ---------- latest alarms ---------- */
.latest-list {
  flex: 1;
  padding: 0;
  margin: 0;
  overflow-y: auto;
  list-style: none;
}

.latest-list li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 8px 4px;
  border-bottom: 1px dashed rgba(103, 232, 249, 0.12);
}

.latest-text {
  display: inline-flex;
  flex-direction: column;
  line-height: 1.4;
}

.latest-name {
  color: #d6f4ff;
  font-size: 13px;
}

.latest-rule {
  color: rgba(214, 244, 255, 0.72);
  font-size: 11px;
}

.latest-time {
  color: rgba(214, 244, 255, 0.5);
  font-size: 11px;
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}

.latest-empty {
  justify-content: center;
  color: rgba(214, 244, 255, 0.45);
  font-size: 13px;
}

/* ---------- responsive ---------- */
@media (max-width: 1400px) {
  .overview-kpis { grid-template-columns: repeat(3, 1fr); }
  .overview-panels { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 900px) {
  .overview-kpis { grid-template-columns: repeat(2, 1fr); }
  .overview-panels { grid-template-columns: 1fr; }
  .overview-header { flex-direction: column; gap: 10px; align-items: flex-start; }
}

/* ================= 绚丽增强（概览大屏专属） ================= */

/* 头部横幅：流动的极光底色 + 顶部高光扫过 */
.overview-header {
  position: relative;
  overflow: hidden;
}

.overview-header::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at 18% 20%, rgba(34, 211, 238, 0.2), transparent 42%),
    radial-gradient(circle at 82% 30%, rgba(139, 92, 246, 0.18), transparent 46%);
  animation: dazzle-ov-header-drift 16s ease-in-out infinite alternate;
}

@keyframes dazzle-ov-header-drift {
  from { transform: translate3d(-3%, 0, 0) scale(1); }
  to   { transform: translate3d(3%, -4%, 0) scale(1.06); }
}

.overview-header::after {
  content: "";
  position: absolute;
  top: 0;
  right: 12%;
  left: 12%;
  height: 1px;
  pointer-events: none;
  background: linear-gradient(90deg, transparent, rgba(103, 232, 249, 0.85), transparent);
  background-repeat: no-repeat;
  background-size: 45% 100%;
  animation: dazzle-ov-topline 5.5s linear infinite;
}

@keyframes dazzle-ov-topline {
  from { background-position: -45% 0; }
  to   { background-position: 145% 0; }
}

/* 标题图标呼吸 + 副标题字母微光 */
.overview-title-icon {
  animation: dazzle-ov-icon-breathe 3s ease-in-out infinite;
}

@keyframes dazzle-ov-icon-breathe {
  0%, 100% { text-shadow: 0 0 14px rgba(34, 211, 238, 0.7); transform: scale(1); }
  50%      { text-shadow: 0 0 26px rgba(34, 211, 238, 1), 0 0 40px rgba(139, 92, 246, 0.5); transform: scale(1.08); }
}

/* 时钟数字霓虹 */
.overview-clock {
  text-shadow: 0 0 12px rgba(34, 211, 238, 0.45);
  animation: dazzle-ov-clock 2.4s ease-in-out infinite;
}

@keyframes dazzle-ov-clock {
  0%, 100% { text-shadow: 0 0 10px rgba(34, 211, 238, 0.35); }
  50%      { text-shadow: 0 0 20px rgba(34, 211, 238, 0.7); }
}

/* KPI 卡片：进入浮起 + 图标光晕脉冲 + 数值渐变发光 */
.kpi-card {
  animation: dazzle-ov-card-in 0.5s ease both;
}

.kpi-card:nth-child(1) { animation-delay: 0.02s; }
.kpi-card:nth-child(2) { animation-delay: 0.08s; }
.kpi-card:nth-child(3) { animation-delay: 0.14s; }
.kpi-card:nth-child(4) { animation-delay: 0.2s; }
.kpi-card:nth-child(5) { animation-delay: 0.26s; }

/* 常驻霓虹边框光（静态即可见） */
.kpi-card {
  box-shadow: 0 0 0 1px rgba(34, 211, 238, 0.18), 0 10px 28px rgba(2, 8, 23, 0.42), 0 0 22px rgba(34, 211, 238, 0.1);
}

.ov-panel {
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.05), 0 0 24px rgba(34, 211, 238, 0.08);
}

@keyframes dazzle-ov-card-in {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}

.kpi-icon {
  position: relative;
  box-shadow: 0 0 18px rgba(34, 211, 238, 0.12);
  animation: dazzle-ov-icon-halo 3.2s ease-in-out infinite;
}

@keyframes dazzle-ov-icon-halo {
  0%, 100% { box-shadow: 0 0 10px rgba(34, 211, 238, 0.1); }
  50%      { box-shadow: 0 0 24px rgba(34, 211, 238, 0.32); }
}

.kpi-value {
  color: #d9f6ff;
  animation: dazzle-ov-kpi-glow 3.4s ease-in-out infinite;
}

@keyframes dazzle-ov-kpi-glow {
  0%, 100% { text-shadow: 0 0 10px rgba(34, 211, 238, 0.35); }
  50%      { text-shadow: 0 0 22px rgba(34, 211, 238, 0.65), 0 0 36px rgba(139, 92, 246, 0.3); }
}

.kpi-corner {
  animation: dazzle-ov-corner 3.6s ease-in-out infinite;
}

@keyframes dazzle-ov-corner {
  0%, 100% { opacity: 0.35; }
  50%      { opacity: 0.85; }
}

/* 面板：顶部高光线 + 标题条流光 */
.ov-panel {
  position: relative;
  overflow: hidden;
}

.ov-panel::after {
  content: "";
  position: absolute;
  top: 0;
  right: 16%;
  left: 16%;
  height: 1px;
  pointer-events: none;
  background: linear-gradient(90deg, transparent, rgba(103, 232, 249, 0.7), transparent);
}

.panel-title-bar {
  background: linear-gradient(180deg, #22d3ee, #3b82f6, #8b5cf6);
  animation: dazzle-ov-titlebar 2.8s ease-in-out infinite;
}

@keyframes dazzle-ov-titlebar {
  0%, 100% { box-shadow: 0 0 8px rgba(34, 211, 238, 0.7); }
  50%      { box-shadow: 0 0 18px rgba(34, 211, 238, 1), 0 0 30px rgba(139, 92, 246, 0.45); }
}

/* 趋势图与环图：发光滤镜 */
.trend-chart svg {
  filter: drop-shadow(0 0 8px rgba(34, 211, 238, 0.28));
}

.donut-svg {
  animation: dazzle-ov-donut-spin 40s linear infinite;
  filter: drop-shadow(0 0 10px rgba(139, 92, 246, 0.3));
}

@keyframes dazzle-ov-donut-spin {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

/* 最新动态列表：行进入交错 */
.latest-list li {
  animation: dazzle-ov-row-in 0.4s ease both;
}

.latest-list li:nth-child(1) { animation-delay: 0.05s; }
.latest-list li:nth-child(2) { animation-delay: 0.1s; }
.latest-list li:nth-child(3) { animation-delay: 0.15s; }
.latest-list li:nth-child(4) { animation-delay: 0.2s; }
.latest-list li:nth-child(5) { animation-delay: 0.25s; }

@keyframes dazzle-ov-row-in {
  from { opacity: 0; transform: translateX(8px); }
  to   { opacity: 1; transform: translateX(0); }
}