/* www · 机房值班仪表盘 / Night-shift dashboard */
:root {
  --navy-0: #06101c;
  --navy-1: #0a1628;
  --navy-2: #102038;
  --navy-3: #17324f;
  --panel: #0d1d33;
  --panel-2: #122844;
  --line: #2a4a6c;
  --amber: #f0a020;
  --amber-2: #ffc14d;
  --amber-dim: #b87612;
  --text: #e7eef7;
  --muted: #8fa6be;
  --steel: #4d6d8c;
  --ink: #071018;
  --lamp-idle: #3d5570;
  --lamp-alert: #d4651a;
  --font: "Segoe UI", "Microsoft YaHei", sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: auto;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  min-height: 100vh;
  background-color: var(--navy-0);
  background-image:
    linear-gradient(180deg, rgba(6, 16, 28, 0.92), rgba(10, 22, 40, 0.96)),
    repeating-linear-gradient(
      90deg,
      transparent,
      transparent 47px,
      rgba(240, 160, 32, 0.035) 47px,
      rgba(240, 160, 32, 0.035) 48px
    ),
    repeating-linear-gradient(
      0deg,
      transparent,
      transparent 47px,
      rgba(42, 74, 108, 0.28) 47px,
      rgba(42, 74, 108, 0.28) 48px
    );
  color: var(--text);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.85;
}

img,
svg {
  display: block;
  max-width: 100%;
}

a {
  color: var(--amber);
  text-underline-offset: 3px;
}

p {
  margin: 0 0 1em;
}

p:last-child {
  margin-bottom: 0;
}

h1,
h2,
h3 {
  line-height: 1.35;
  font-weight: 700;
  color: var(--text);
  margin: 0 0 0.7em;
}

h1 {
  font-size: 1.72rem;
}

h2 {
  font-size: 1.28rem;
}

h3 {
  font-size: 1.05rem;
  color: var(--amber-2);
}

ul,
ol {
  margin: 0 0 1em;
  padding-left: 1.2em;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}

th,
td {
  border: 1px solid var(--line);
  padding: 0.65em 0.75em;
  text-align: left;
  vertical-align: top;
}

th {
  background: var(--navy-3);
  color: var(--amber-2);
  font-weight: 650;
}

.skip {
  position: absolute;
  left: 12px;
  top: -48px;
  z-index: 40;
  background: var(--amber);
  color: var(--ink);
  padding: 8px 12px;
  font-weight: 700;
}

.skip:focus {
  top: 12px;
}

.wrap {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
}

/* —— 顶栏状态灯 —— */
.topbar {
  background: linear-gradient(180deg, #0c1b30, #0a1628);
  border-bottom: 1px solid var(--line);
  box-shadow: 0 1px 0 rgba(240, 160, 32, 0.18);
}

.topbar-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 0 10px;
  flex-wrap: wrap;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  text-decoration: none;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.brand:hover {
  color: var(--amber-2);
}

.brand svg {
  width: 30px;
  height: 30px;
  color: var(--amber);
  flex-shrink: 0;
}

.brand-name {
  font-size: 1.08rem;
}

.hud-right {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
}

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

.lamp-item {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--muted);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
}

.lamp {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--lamp-idle);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.08);
}

.lamp-on {
  background: var(--amber);
  box-shadow: 0 0 0 2px rgba(240, 160, 32, 0.18), 0 0 10px rgba(240, 160, 32, 0.55);
}

.lamp-alert {
  background: var(--lamp-alert);
  box-shadow: 0 0 0 2px rgba(212, 101, 26, 0.2);
}

.shift-tag {
  border: 1px solid var(--line);
  background: var(--navy-2);
  color: var(--amber-2);
  font-size: 0.78rem;
  padding: 4px 10px;
  letter-spacing: 0.06em;
}

.nav-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 0 0 12px;
  border-top: 1px solid rgba(42, 74, 108, 0.65);
}

.nav-list {
  display: flex;
  gap: 6px;
  list-style: none;
  margin: 0;
  padding: 10px 0 0;
  flex-wrap: wrap;
}

.nav-list a {
  display: inline-block;
  text-decoration: none;
  color: var(--muted);
  border: 1px solid transparent;
  padding: 6px 14px;
  font-size: 0.92rem;
  background: transparent;
  transition: color 0.16s ease, background-color 0.16s ease, border-color 0.16s ease, box-shadow 0.16s ease;
}

.nav-list a:hover {
  color: var(--amber-2);
  border-color: rgba(240, 160, 32, 0.35);
}

.nav-list a[aria-current="page"],
.nav-list a.is-current {
  color: var(--ink);
  background: var(--amber);
  border-color: var(--amber);
  box-shadow: 0 0 0 1px rgba(240, 160, 32, 0.25);
}

.nav-meta {
  color: var(--steel);
  font-size: 0.78rem;
  padding-top: 10px;
}

main {
  padding: 28px 0 48px;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  box-shadow: inset 0 1px 0 rgba(240, 160, 32, 0.08);
  margin-bottom: 22px;
}

.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 16px;
  background: linear-gradient(180deg, var(--panel-2), var(--navy-2));
  border-bottom: 1px solid var(--line);
}

.panel-head h2,
.panel-head h1 {
  margin: 0;
}

.tick {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--amber);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
}

.tick i {
  display: inline-block;
  width: 8px;
  height: 8px;
  background: var(--amber);
  box-shadow: 0 0 8px rgba(240, 160, 32, 0.7);
}

.panel-body {
  padding: 18px 18px 20px;
}

.kicker {
  margin: 0 0 8px;
  color: var(--amber);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
}

.lead {
  color: var(--text);
  font-size: 1.02rem;
}

/* —— KPI 数字条 —— */
.kpi-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-bottom: 22px;
}

.kpi {
  background: var(--panel);
  border: 1px solid var(--line);
  padding: 14px 14px 16px;
}

.kpi .num {
  font-size: 1.9rem;
  font-weight: 700;
  color: var(--amber-2);
  letter-spacing: 0.02em;
  line-height: 1.15;
}

.kpi .label {
  color: var(--muted);
  font-size: 0.82rem;
  margin-top: 6px;
}

.kpi .note {
  color: var(--steel);
  font-size: 0.75rem;
  margin-top: 4px;
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}

.card {
  background: var(--navy-2);
  border: 1px solid var(--line);
  padding: 14px;
}

.card h3 {
  margin-bottom: 0.45em;
}

.card p {
  color: var(--muted);
  font-size: 0.95rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 42px;
  padding: 8px 16px;
  background: var(--amber);
  color: var(--ink);
  text-decoration: none;
  font-weight: 700;
  border: 1px solid var(--amber-2);
  transition: background-color 0.16s ease, color 0.16s ease, box-shadow 0.16s ease, border-color 0.16s ease;
}

.btn:hover {
  background: var(--amber-2);
  color: var(--ink);
  box-shadow: 0 0 0 3px rgba(240, 160, 32, 0.22);
}

.btn-ghost {
  background: transparent;
  color: var(--amber-2);
  border-color: var(--amber-dim);
}

.btn-ghost:hover {
  background: rgba(240, 160, 32, 0.14);
  color: var(--amber-2);
}

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 14px;
}

.dl-meta {
  color: var(--muted);
  font-size: 0.86rem;
  margin-top: 8px;
}

.handover {
  border: 1px solid var(--line);
  background: var(--navy-2);
  padding: 14px 16px;
  margin-bottom: 12px;
}

.handover:last-child {
  margin-bottom: 0;
}

.handover-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  margin-bottom: 8px;
  color: var(--amber);
  font-size: 0.82rem;
  letter-spacing: 0.04em;
}

.handover h3 {
  font-size: 1rem;
  margin-bottom: 0.4em;
}

.faq-item {
  border-top: 1px solid var(--line);
  padding: 14px 0;
}

.faq-item:first-child {
  border-top: 0;
  padding-top: 0;
}

.footer {
  border-top: 1px solid var(--line);
  background: #07101c;
  padding: 22px 0 28px;
  color: var(--muted);
  font-size: 0.9rem;
}

.footer p {
  margin: 0 0 0.55em;
}

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

.note-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
  color: var(--steel);
  font-size: 0.8rem;
  margin-bottom: 12px;
}

@media (max-width: 900px) {
  .kpi-bar,
  .grid-4 {
    grid-template-columns: 1fr 1fr;
  }

  .grid-2 {
    grid-template-columns: 1fr;
  }

  h1 {
    font-size: 1.4rem;
  }
}

@media (max-width: 620px) {
  .kpi-bar,
  .grid-4 {
    grid-template-columns: 1fr;
  }

  .nav-row {
    flex-direction: column;
    align-items: flex-start;
  }
}