/*
 * 哨塔控制台三主题设计系统
 *
 * 维护约束：
 * 1. 主题只能覆盖视觉变量，不能改变 online / warning / failed 的业务语义。
 * 2. 所有字体均使用操作系统本地字体，生产环境不依赖外网字体服务。
 * 3. [hidden] 的强制规则必须保留，防止主题样式意外显示未认证工作区或敏感侧栏。
 */
:root, [data-theme="industrial"] {
  color-scheme: dark;
  --canvas: #070b0c;
  --canvas-elevated: #0c1214;
  --surface: #11191c;
  --surface-raised: #182327;
  --surface-soft: #202d31;
  --text: #edf2ed;
  --text-strong: #ffffff;
  --text-muted: #91a0a1;
  --line: #344449;
  --line-strong: #58676b;
  --accent: #f6b71d;
  --accent-ink: #10110c;
  --accent-soft: rgba(246, 183, 29, 0.12);
  --signal: #63d5e5;
  --shadow: rgba(0, 0, 0, 0.52);
  --grid-line: rgba(124, 146, 150, 0.055);
  --status-online: #48d787;
  --status-warning: #f6b71d;
  --status-failed: #ff5d4f;
  --status-disabled: #849093;
  --overlay-normal: #48d787;
  --overlay-falling: #f6b71d;
  --overlay-fallen: #ff8a52;
  --overlay-warming: #63d5e5;
  --overlay-confirmed: #ff5d4f;
  --overlay-label-text: #07100c;
  --display-font: "Bahnschrift Condensed", "DIN Condensed", "Noto Sans SC",
    "Microsoft YaHei UI", sans-serif;
  --body-font: "Aptos", "Noto Sans SC", "Microsoft YaHei UI", sans-serif;
  --mono-font: "Cascadia Mono", "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
  --radius: 2px;
  --panel-shadow: 0 28px 90px var(--shadow);
}

/* 医疗安全中心：降低刺激度，以暖白底和蓝绿色强调长时间值守可读性。 */
[data-theme="clinical"] {
  color-scheme: light;
  --canvas: #eef2ee;
  --canvas-elevated: #e3eae6;
  --surface: #f9fbf8;
  --surface-raised: #ffffff;
  --surface-soft: #e8efeb;
  --text: #263432;
  --text-strong: #10201e;
  --text-muted: #657773;
  --line: #c8d4cf;
  --line-strong: #93aaa3;
  --accent: #157f78;
  --accent-ink: #ffffff;
  --accent-soft: rgba(21, 127, 120, 0.1);
  --signal: #2674a6;
  --shadow: rgba(41, 69, 62, 0.18);
  --grid-line: rgba(46, 91, 80, 0.055);
  --status-online: #16845a;
  --status-warning: #a86200;
  --status-failed: #c53831;
  --status-disabled: #778580;
  --overlay-normal: #16845a;
  --overlay-falling: #a86200;
  --overlay-fallen: #c6532d;
  --overlay-warming: #2674a6;
  --overlay-confirmed: #c53831;
  --overlay-label-text: #ffffff;
  --radius: 10px;
  --panel-shadow: 0 24px 70px var(--shadow);
}

/* 战术 HUD：用青绿色数据层和细网格增强高密度态势感知。 */
[data-theme="tactical"] {
  color-scheme: dark;
  --canvas: #020807;
  --canvas-elevated: #06100e;
  --surface: #071713;
  --surface-raised: #0a211b;
  --surface-soft: #0e2b23;
  --text: #c8f3df;
  --text-strong: #effff7;
  --text-muted: #6eaa92;
  --line: #194c3c;
  --line-strong: #2c8064;
  --accent: #4ef0aa;
  --accent-ink: #02110b;
  --accent-soft: rgba(78, 240, 170, 0.12);
  --signal: #50e7f2;
  --shadow: rgba(0, 0, 0, 0.72);
  --grid-line: rgba(78, 240, 170, 0.085);
  --status-online: #4ef0aa;
  --status-warning: #f2c94c;
  --status-failed: #ff665c;
  --status-disabled: #608276;
  --overlay-normal: #4ef0aa;
  --overlay-falling: #f2c94c;
  --overlay-fallen: #ff9a52;
  --overlay-warming: #50e7f2;
  --overlay-confirmed: #ff665c;
  --overlay-label-text: #02110b;
  --radius: 0;
  --panel-shadow: 0 0 42px rgba(32, 185, 130, 0.09);
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

html {
  min-width: 320px;
  background: var(--canvas);
}

body {
  margin: 0;
  min-height: 100vh;
  overflow-x: hidden;
  color: var(--text);
  background:
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px),
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    radial-gradient(circle at 18% 18%, var(--accent-soft), transparent 34rem),
    var(--canvas);
  background-size: 40px 40px, 40px 40px, auto, auto;
  font-family: var(--body-font);
  text-rendering: optimizeLegibility;
}

button,
input,
select {
  font: inherit;
}

.fps-control {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--text-muted);
  font: 700 0.7rem var(--mono-font);
  white-space: nowrap;
}

.fps-control select {
  min-height: 34px;
  border: 1px solid var(--line);
  padding: 4px 8px;
  color: var(--text);
  background: var(--surface);
}

.runtime-warning {
  margin: 0;
  border-bottom: 1px solid var(--line);
  padding: 8px clamp(18px, 3vw, 38px);
  color: var(--status-warning);
  background: var(--accent-soft);
  font: 700 0.72rem var(--mono-font);
}

button,
input,
select,
.camera-card {
  border-radius: var(--radius);
}

.grain {
  position: fixed;
  z-index: 50;
  inset: 0;
  pointer-events: none;
  opacity: 0.11;
  background-image: repeating-linear-gradient(
    0deg,
    transparent 0 3px,
    color-mix(in srgb, var(--text) 13%, transparent) 4px
  );
  mix-blend-mode: soft-light;
}

[data-theme="clinical"] .grain {
  opacity: 0.025;
}

[data-theme="tactical"] .grain {
  opacity: 0.16;
  background-image:
    linear-gradient(transparent 50%, rgba(0, 0, 0, 0.2) 50%),
    linear-gradient(90deg, rgba(78, 240, 170, 0.025), transparent 45%);
  background-size: 100% 4px, 6px 100%;
  animation: tactical-scan 9s linear infinite;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1,
h2 {
  margin-bottom: 0;
  color: var(--text-strong);
  font-family: var(--display-font);
  font-stretch: condensed;
  text-transform: uppercase;
  letter-spacing: 0.025em;
}

h1 {
  font-size: clamp(2.3rem, 5vw, 5.8rem);
  line-height: 0.86;
}

h2 {
  font-size: clamp(1.35rem, 2vw, 1.8rem);
  line-height: 1;
}

h3 {
  margin-bottom: 12px;
  color: var(--text-strong);
  font: 750 0.8rem var(--mono-font);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.eyebrow,
.mono,
.index,
.status {
  font-family: var(--mono-font);
  text-transform: uppercase;
}

.eyebrow,
.mono {
  color: var(--text-muted);
  font-size: 0.7rem;
  font-weight: 650;
  line-height: 1.3;
  letter-spacing: 0.15em;
}

.muted {
  color: var(--text-muted);
}

/* 主题开关固定在视口右上角，认证前后保持同一位置，降低学习成本。 */
.theme-switcher {
  position: fixed;
  z-index: 40;
  top: 18px;
  right: 22px;
  display: flex;
  align-items: center;
  gap: 2px;
  padding: 4px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--surface-raised) 88%, transparent);
  box-shadow: 0 12px 38px var(--shadow);
  backdrop-filter: blur(14px);
}

.theme-switcher__label {
  padding: 0 9px;
  color: var(--text-muted);
  font: 650 0.62rem var(--mono-font);
  letter-spacing: 0.12em;
}

.theme-switcher button {
  min-height: 32px;
  padding: 0 10px;
  border: 0;
  color: var(--text-muted);
  background: transparent;
  cursor: pointer;
  font: 700 0.65rem var(--mono-font);
}

.theme-switcher button[aria-pressed="true"] {
  color: var(--accent-ink);
  background: var(--accent);
}

/* 会话探测期间只呈现稳定引导态，避免登录页与工作区互相闪烁。 */
.boot-view {
  min-height: 100vh;
  display: grid;
  place-content: center;
  justify-items: center;
  gap: 22px;
  color: var(--text-muted);
}

.boot-view__mark {
  width: 82px;
  height: 82px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line-strong);
  border-top-color: var(--accent);
  color: var(--accent);
  background: var(--surface);
  box-shadow: var(--panel-shadow);
  font: 800 2.7rem var(--display-font);
  animation: pulse 1.8s ease-in-out infinite;
}

/* 登录页采用非对称双栏：左侧建立系统边界，右侧聚焦唯一操作。 */
.login-view {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(380px, 0.8fr);
  align-items: stretch;
}

.login-brand {
  position: relative;
  display: flex;
  min-height: 100vh;
  flex-direction: column;
  justify-content: flex-end;
  padding: clamp(38px, 7vw, 110px);
  overflow: hidden;
  border-right: 1px solid var(--line);
}

.login-brand::before {
  content: "24/7";
  position: absolute;
  top: clamp(90px, 14vh, 170px);
  left: clamp(36px, 7vw, 108px);
  color: var(--accent-soft);
  font: 800 clamp(8rem, 24vw, 24rem)/0.7 var(--display-font);
  letter-spacing: -0.08em;
  pointer-events: none;
}

.login-brand > * {
  position: relative;
  z-index: 1;
  max-width: 760px;
}

.login-brand > p:not(.contract-warning) {
  max-width: 560px;
  margin: 28px 0 18px;
  color: var(--text-muted);
  font-size: clamp(1rem, 1.6vw, 1.3rem);
}

.contract-warning {
  max-width: 650px;
  margin-bottom: 0;
  padding: 12px 14px;
  border-left: 3px solid var(--status-warning);
  color: var(--status-warning);
  background: color-mix(in srgb, var(--status-warning) 8%, transparent);
  font: 650 0.72rem/1.6 var(--mono-font);
}

.login-panel {
  align-self: center;
  width: min(430px, calc(100% - 64px));
  display: grid;
  gap: 12px;
  justify-self: center;
  padding: clamp(30px, 4vw, 56px);
  border: 1px solid var(--line);
  border-top: 4px solid var(--accent);
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--surface-raised) 94%, transparent);
  box-shadow: var(--panel-shadow);
  backdrop-filter: blur(16px);
}

.login-panel h2 {
  margin: 10px 0 4px;
  font-size: clamp(2rem, 4vw, 3.5rem);
}

.login-panel label,
.management-drawer label {
  margin-top: 8px;
  color: var(--text-muted);
  font: 650 0.7rem var(--mono-font);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

input,
select {
  width: 100%;
  min-height: 46px;
  padding: 11px 13px;
  border: 1px solid var(--line);
  color: var(--text);
  background: var(--canvas-elevated);
  outline: none;
  font-family: var(--mono-font);
}

input:hover,
select:hover {
  border-color: var(--line-strong);
}

input:focus,
select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.password-field {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
}

.password-field input {
  border-radius: var(--radius) 0 0 var(--radius);
}

.password-field button {
  min-width: 92px;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-left: 0;
  color: var(--accent);
  background: var(--surface-soft);
  cursor: pointer;
  font: 700 0.7rem var(--mono-font);
}

.field-warning,
.error {
  min-height: 20px;
  margin: 0;
  font: 650 0.7rem/1.5 var(--mono-font);
}

.field-warning {
  color: var(--status-warning);
}

.error {
  color: var(--status-failed);
}

/* 工作区保持高信息密度；监控矩阵优先获得横向空间。 */
.workspace-view {
  position: relative;
  z-index: 1;
  min-height: 100vh;
}

.command-bar {
  position: sticky;
  z-index: 10;
  top: 0;
  min-height: 104px;
  display: grid;
  grid-template-columns: minmax(250px, 1fr) auto minmax(250px, 1fr);
  align-items: center;
  gap: 24px;
  padding: 18px 28px;
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--canvas) 91%, transparent);
  backdrop-filter: blur(18px);
}

.brand-block {
  display: grid;
  gap: 7px;
}

.brand-block h1 {
  font-size: clamp(1.9rem, 3vw, 3rem);
}

.safety-belt {
  min-height: 44px;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 16px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--surface);
  font: 650 0.72rem var(--mono-font);
}

.pulse-dot {
  width: 8px;
  height: 8px;
  flex: 0 0 auto;
  border-radius: 50%;
  background: var(--status-online);
  box-shadow: 0 0 14px var(--status-online);
  animation: pulse 1.8s infinite;
}

.safety-belt .contract-warning {
  margin-left: 8px;
  padding: 0 0 0 12px;
  border-width: 0 0 0 1px;
  background: transparent;
}

.operator-block {
  justify-self: end;
  display: flex;
  align-items: center;
  gap: 14px;
  padding-right: 270px;
  font: 0.72rem var(--mono-font);
}

/*
 * 测试向导是工作区内的状态说明条，不是遮挡实时画面的模态框。测试人员可一边看
 * 当前画面，一边按每路输入给出的单步建议操作。
 */
.test-guide-panel {
  margin: 18px 28px 0;
  padding: 18px;
  border: 1px solid var(--line-strong);
  border-left: 4px solid var(--accent);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--panel-shadow);
}

.test-guide-heading,
.test-guide-camera__heading,
.test-guide-command {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}

.test-guide-heading h2 {
  margin-top: 5px;
}

.test-guide-warning {
  margin: 14px 0;
  padding: 11px 13px;
  border: 1px solid color-mix(in srgb, var(--status-warning) 55%, var(--line));
  background: color-mix(in srgb, var(--status-warning) 9%, var(--surface));
  color: var(--text);
}

.test-guide-camera-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 10px;
}

.test-guide-camera {
  min-width: 0;
  padding: 13px;
  border: 1px solid var(--line);
  border-top: 3px solid var(--status-disabled);
  background: var(--surface-raised);
}

.test-guide-camera--online { border-top-color: var(--status-online); }
.test-guide-camera--warning { border-top-color: var(--status-warning); }
.test-guide-camera--failed { border-top-color: var(--status-failed); }

.test-guide-camera p {
  margin: 8px 0 0;
  color: var(--text-muted);
}

.test-guide-command {
  align-items: stretch;
  margin-top: 11px;
}

.test-guide-command code {
  min-width: 0;
  flex: 1;
  overflow-wrap: anywhere;
  padding: 9px;
  border: 1px solid var(--line);
  background: var(--canvas-elevated);
  color: var(--signal);
}

.test-guide-scenarios {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  margin-top: 14px;
  color: var(--text-muted);
  font: 0.72rem var(--mono-font);
}

.control-layout {
  min-height: calc(100vh - 105px);
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 330px);
}

.monitor-stage {
  min-width: 0;
  padding: 30px;
  border-right: 1px solid var(--line);
}

.alert-rail {
  padding: 30px 20px;
  background: color-mix(in srgb, var(--canvas-elevated) 90%, transparent);
}

.section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 20px;
}

.section-heading > div {
  display: flex;
  align-items: baseline;
  gap: 11px;
}

.index {
  color: var(--accent);
  font-size: 0.68rem;
  font-weight: 800;
}

.camera-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 340px), 1fr));
  gap: 14px;
}

.camera-card {
  position: relative;
  min-width: 0;
  min-height: 245px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--surface);
  box-shadow: 0 12px 40px color-mix(in srgb, var(--shadow) 45%, transparent);
  animation: reveal 0.45s both;
}

.camera-card:hover {
  border-color: var(--line-strong);
}

.camera-frame {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background:
    linear-gradient(135deg, var(--surface-soft), transparent 55%),
    #020404;
}

.camera-card img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  background: #020404;
}

.analysis-overlay-canvas {
  position: absolute;
  z-index: 2;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.analysis-overlay-status {
  position: absolute;
  z-index: 3;
  top: 8px;
  right: 8px;
  max-width: calc(100% - 16px);
  padding: 5px 7px;
  border: 1px solid color-mix(in srgb, var(--overlay-warming) 65%, transparent);
  color: var(--text-strong);
  background: color-mix(in srgb, var(--canvas) 82%, transparent);
  backdrop-filter: blur(8px);
  font: 700 0.58rem var(--mono-font);
  letter-spacing: 0.03em;
  pointer-events: none;
}

.sr-only {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

.preview-placeholder {
  position: absolute;
  inset: 0;
  display: grid;
  place-content: center;
  padding: 22px;
  color: var(--text-muted);
  background:
    repeating-linear-gradient(135deg, transparent 0 18px, var(--grid-line) 19px 20px),
    var(--canvas-elevated);
  font: 650 0.7rem var(--mono-font);
  letter-spacing: 0.1em;
  text-align: center;
  text-transform: uppercase;
}

.preview-metrics {
  position: absolute;
  right: 8px;
  bottom: 8px;
  display: flex;
  gap: 8px;
  padding: 6px 8px;
  border: 1px solid color-mix(in srgb, var(--line-strong) 75%, transparent);
  color: var(--text-strong);
  background: color-mix(in srgb, var(--canvas) 82%, transparent);
  backdrop-filter: blur(8px);
  font: 700 0.62rem var(--mono-font);
  pointer-events: none;
}

.camera-meta {
  min-height: 50px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 14px;
  border-top: 1px solid var(--line);
}

.status {
  color: var(--status-online);
  font-size: 0.65rem;
  font-weight: 800;
  letter-spacing: 0.1em;
}

.status[data-state="reconnecting"],
.status[data-state="degraded"],
.status[data-state="stalled"] {
  color: var(--status-warning);
}

.status[data-state="failed"],
.status[data-state="offline"] {
  color: var(--status-failed);
}

.status[data-state="disabled"] {
  color: var(--status-disabled);
}

.empty-state {
  min-height: 340px;
  display: grid;
  place-content: center;
  padding: 32px;
  border: 1px dashed var(--line);
  color: var(--text-muted);
  text-align: center;
}

.scan-mark {
  color: var(--accent);
  font: 100 4.4rem var(--display-font);
}

.event-list {
  display: grid;
  gap: 9px;
}

.event-card {
  padding: 15px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--status-failed);
  border-radius: var(--radius);
  background: var(--surface);
}

.event-card strong {
  display: block;
  margin-bottom: 7px;
  color: var(--text-strong);
}

.button {
  min-height: 40px;
  appearance: none;
  padding: 10px 14px;
  border: 1px solid var(--line);
  color: var(--text);
  background: transparent;
  cursor: pointer;
  font: 750 0.68rem var(--mono-font);
  text-transform: uppercase;
  transition: border-color 140ms ease, background 140ms ease, color 140ms ease,
    transform 140ms ease;
}

.button:hover:not(:disabled) {
  border-color: var(--text);
  transform: translateY(-1px);
}

.button:disabled {
  cursor: wait;
  opacity: 0.62;
}

.button-accent {
  border-color: var(--accent);
  color: var(--accent-ink);
  background: var(--accent);
}

.button-quiet {
  min-height: 32px;
  padding: 7px 9px;
  color: var(--text-muted);
  border-color: transparent;
}

button:focus-visible,
input:focus-visible,
select:focus-visible,
.camera-card:focus-visible {
  outline: 3px solid var(--signal);
  outline-offset: 3px;
}

/* 侧栏和聚焦层独立于工作区 DOM，打开时不触发摄像头矩阵重排。 */
.management-backdrop {
  position: fixed;
  z-index: 29;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
  background: rgba(0, 0, 0, 0.58);
  backdrop-filter: blur(4px);
  cursor: default;
}

.management-drawer {
  position: fixed;
  z-index: 30;
  top: 0;
  right: 0;
  width: min(470px, 100vw);
  height: 100vh;
  padding: 28px;
  overflow-y: auto;
  border-left: 1px solid var(--line-strong);
  color: var(--text);
  background: var(--surface-raised);
  box-shadow: -28px 0 90px var(--shadow);
}

.management-drawer form {
  display: grid;
  gap: 12px;
}

.management-section {
  padding: 22px 0;
  border-top: 1px solid var(--line);
}

.management-section__heading {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
}

.management-camera-list {
  display: grid;
  gap: 9px;
}

.management-camera-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 12px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.management-camera-row strong,
.management-camera-row span {
  display: block;
}

.management-camera-row .mono {
  margin-top: 5px;
  font-size: 0.58rem;
}

.drawer-heading,
.focus-view > header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 20px;
}

.dialog-actions {
  display: flex;
  justify-content: flex-end;
  gap: 9px;
  margin-top: 16px;
}

.focus-view {
  position: fixed;
  /* 必须高于固定主题开关（40），否则右上角的“退出聚焦”会被透明层截获点击。 */
  z-index: 45;
  inset: 0;
  padding: clamp(20px, 3vw, 48px);
  color: var(--text);
  background: color-mix(in srgb, var(--canvas) 97%, transparent);
  backdrop-filter: blur(20px);
}

.focus-stage {
  position: relative;
  min-height: calc(100vh - 150px);
  display: grid;
  place-items: center;
  overflow: hidden;
  border: 1px solid var(--line-strong);
  background: #010303;
  box-shadow: var(--panel-shadow);
}

.focus-stage > img {
  display: block;
  width: 100%;
  height: calc(100vh - 150px);
  object-fit: contain;
}

.focus-stage .preview-placeholder {
  z-index: 1;
}

.focus-stage .preview-metrics {
  z-index: 2;
  right: 14px;
  bottom: 14px;
}

.focus-stage .analysis-overlay-status {
  top: 14px;
  right: 14px;
  font-size: 0.68rem;
}

@keyframes pulse {
  50% {
    opacity: 0.35;
    transform: scale(0.74);
  }
}

@keyframes reveal {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
}

@keyframes tactical-scan {
  from {
    transform: translateY(-4px);
  }
  to {
    transform: translateY(4px);
  }
}

/* 1366px 级别设备收紧命令栏，并让主题开关避开操作区。 */
@media (max-width: 1180px) {
  .command-bar {
    grid-template-columns: minmax(220px, 1fr) minmax(340px, auto);
  }

  .safety-belt {
    grid-column: 1 / -1;
    grid-row: 2;
  }

  .operator-block {
    padding-right: 255px;
  }
}

@media (max-width: 900px) {
  .login-view {
    grid-template-columns: 1fr;
  }

  .login-brand {
    min-height: 42vh;
    padding: 90px 42px 38px;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .login-brand::before {
    top: 78px;
    left: auto;
    right: 30px;
    font-size: 11rem;
  }

  .login-panel {
    margin: 54px auto;
  }

  .control-layout {
    grid-template-columns: 1fr;
  }

  .monitor-stage {
    border-right: 0;
  }

  .alert-rail {
    border-top: 1px solid var(--line);
  }
}

/* 手机采用单列状态/单路聚焦视图，保留完整键盘和触控命中区域。 */
@media (max-width: 760px) {
  .theme-switcher {
    position: relative;
    z-index: 20;
    top: auto;
    right: auto;
    width: calc(100% - 24px);
    margin: 12px;
    justify-content: flex-end;
  }

  .theme-switcher__label {
    margin-right: auto;
  }

  .login-brand {
    min-height: 310px;
    padding: 42px 24px 30px;
  }

  .login-brand h1 {
    font-size: clamp(3rem, 15vw, 5rem);
  }

  .login-brand::before {
    top: 35px;
    right: 18px;
    font-size: 8rem;
  }

  .login-panel {
    width: calc(100% - 24px);
    margin: 12px auto 32px;
    padding: 26px 22px;
  }

  .command-bar {
    position: relative;
    min-height: auto;
    grid-template-columns: 1fr;
    gap: 16px;
    padding: 22px 18px;
  }

  .safety-belt,
  .operator-block {
    grid-column: 1;
  }

  .safety-belt {
    grid-row: auto;
    align-items: flex-start;
    flex-wrap: wrap;
    padding: 12px;
  }

  .safety-belt .contract-warning {
    width: 100%;
    margin: 4px 0 0;
  }

  .operator-block {
    width: 100%;
    justify-self: stretch;
    justify-content: space-between;
    padding-right: 0;
  }

  .test-guide-panel {
    margin: 12px;
    padding: 15px;
  }

  .test-guide-heading,
  .test-guide-camera__heading,
  .test-guide-command {
    align-items: stretch;
    flex-direction: column;
  }

  .monitor-stage,
  .alert-rail {
    padding: 22px 14px;
  }

  .camera-grid {
    grid-template-columns: 1fr;
  }

  .camera-card {
    min-height: 0;
  }

  .management-drawer {
    padding: 22px 18px;
  }

  .focus-view {
    padding: 16px 12px;
  }

  .focus-view > header {
    align-items: center;
  }
}

/* 尊重系统“减少动画”设置，尤其关闭战术扫描与在线脉冲。 */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}