/* ============================================
   新疆赛瑞斯智能科技有限公司官网 - Blueprint工业风视觉系统
   主题：蓝图网格 / 工业控制面板 / LED 指示灯
   ============================================ */

:root {
  /* 色彩系统 - 蓝图工业风 */
  --color-primary: #1E3A5F;          /* 蓝图蓝 */
  --color-primary-deep: #0D2137;     /* 深蓝底色 */
  --color-surface: #10243D;          /* 面板背景 */
  --color-surface-alt: #142F4C;      /* 卡片/按钮次级底色 */
  --color-line: #3D6A99;             /* 网格线/描边 */
  --color-glow: rgba(77, 153, 255, 0.55);
  --color-accent: #F1C40F;           /* 警示黄 */
  --color-accent-2: #27AE60;         /* 通过/成功绿 */
  --color-text: #E8EEF5;
  --color-text-muted: #AFC4D6;
  --color-text-faint: #7E94AA;
  --color-border: rgba(132, 168, 205, 0.25);
  --color-border-strong: rgba(132, 168, 205, 0.35);
  --color-shadow: rgba(0, 0, 0, 0.35);

  /* 字体系统 */
  --font-family-primary: 'Noto Sans SC', 'Inter', 'Segoe UI', 'Microsoft YaHei', sans-serif;
  --font-family-heading: 'Poppins', 'Noto Sans SC', 'Microsoft YaHei', sans-serif;
  --font-family-mono: 'Share Tech Mono', 'JetBrains Mono', monospace;

  /* 字号/行高 */
  --font-size-xs: 12px;
  --font-size-sm: 14px;
  --font-size-base: 16px;
  --font-size-lg: 18px;
  --font-size-xl: 20px;
  --font-size-2xl: 24px;
  --font-size-3xl: 28px;
  --font-size-4xl: 34px;
  --font-size-5xl: 44px;

  /* 间距系统 */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 12px;
  --spacing-lg: 16px;
  --spacing-xl: 24px;
  --spacing-2xl: 32px;
  --spacing-3xl: 48px;
  --spacing-4xl: 72px;

  /* 圆角与阴影 */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-xl: 18px;
  --radius-2xl: 22px;
  --shadow-sm: 0 6px 20px rgba(0, 0, 0, 0.22);
  --shadow-md: 0 10px 34px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.35);

  --container-max-width: 1280px;
  --container-padding: 22px;
  --transition-fast: 160ms ease;
  --transition-base: 260ms ease;
  --transition-slow: 420ms ease;
}

/* ========== 全局基础 ========== */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  font-family: var(--font-family-primary);
  font-size: var(--font-size-base);
  line-height: 1.7;
  color: var(--color-text);
  background: radial-gradient(circle at 12% 18%, rgba(65, 123, 191, 0.22), transparent 26%),
              radial-gradient(circle at 82% 16%, rgba(241, 196, 15, 0.08), transparent 20%),
              linear-gradient(180deg, #0b1829, #0f1f33 60%, #0b1829);
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: linear-gradient(rgba(61, 106, 153, 0.12) 1px, transparent 1px),
                    linear-gradient(90deg, rgba(61, 106, 153, 0.12) 1px, transparent 1px);
  background-size: 140px 140px;
  opacity: 0.25;
  pointer-events: none;
  z-index: 0;
  animation: grid-pulse 6s ease-in-out infinite;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-family-heading);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: 0.3px;
  color: #f5f9ff;
  margin-bottom: var(--spacing-md);
}

h1 { font-size: var(--font-size-5xl); }
h2 { font-size: var(--font-size-4xl); }
h3 { font-size: var(--font-size-3xl); }
h4 { font-size: var(--font-size-2xl); }
h5 { font-size: var(--font-size-xl); }
h6 { font-size: var(--font-size-lg); }

p { margin-bottom: var(--spacing-lg); color: var(--color-text-muted); }
a { color: #7cc7ff; text-decoration: none; transition: color var(--transition-fast); }
a:hover { color: #9dd6ff; }

/* ========== 布局 ========== */
.container { max-width: var(--container-max-width); margin: 0 auto; padding: 0 var(--container-padding); position: relative; z-index: 1; }
.section { position: relative; padding: var(--spacing-4xl) 0; overflow: hidden; }
.section::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(61, 106, 153, 0.08), transparent 35%);
  opacity: 0.5;
  pointer-events: none;
}
.section-alt { background: linear-gradient(180deg, rgba(20, 43, 70, 0.65), rgba(15, 32, 52, 0.9)); }
.section-light { background: linear-gradient(180deg, #10253e, #0d2135); }

.grid { display: grid; gap: var(--spacing-xl); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.flex { display: flex; align-items: center; justify-content: space-between; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.flex-column { display: flex; flex-direction: column; gap: var(--spacing-md); }
.flex-wrap { flex-wrap: wrap; gap: var(--spacing-md); }

/* ========== 按钮 ========== */
button, .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-xl);
  font-size: var(--font-size-base);
  font-weight: 600;
  border: none;
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
  letter-spacing: 0.3px;
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: linear-gradient(135deg, #4b7ed9, #1f4f9c);
  color: #f8fbff;
  box-shadow: 0 8px 24px rgba(75, 126, 217, 0.32), inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

.btn-primary::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(255, 255, 255, 0.2), transparent 50%);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 14px 32px rgba(75, 126, 217, 0.45); }
.btn-primary:hover::after { opacity: 1; }

.btn-industrial {
  background: linear-gradient(180deg, #2E5077, #1E3A5F);
  color: #F1C40F;
  border: 1px solid #3D6A99;
  border-radius: 6px;
  padding: var(--spacing-md) var(--spacing-2xl);
  font-family: var(--font-family-mono);
  text-transform: uppercase;
  letter-spacing: 1px;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.12), 0 6px 0 #0D2137;
}
.btn-industrial:hover { transform: translateY(-2px); box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.18), 0 10px 0 #0D2137, 0 14px 28px rgba(15, 33, 55, 0.4); }
.btn-industrial:active { transform: translateY(1px); box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.1), 0 4px 0 #0D2137; }
.btn-led { width: 8px; height: 8px; background: var(--color-accent-2); border-radius: 50%; box-shadow: 0 0 0 6px rgba(39, 174, 96, 0.22); animation: led-blink 1.2s ease-in-out infinite; display: inline-block; }

.btn-outline {
  background: transparent;
  border: 1px solid var(--color-border);
  color: var(--color-text);
}
.btn-outline:hover { border-color: #7cc7ff; color: #7cc7ff; }

.btn-ghost { background: rgba(255, 255, 255, 0.04); color: var(--color-text); border: 1px dashed var(--color-border); }
.btn-small { padding: var(--spacing-sm) var(--spacing-lg); font-size: var(--font-size-sm); }
.btn-large { padding: var(--spacing-lg) var(--spacing-2xl); font-size: var(--font-size-lg); }

/* ========== 卡片与面板 ========== */
.card, .panel {
  position: relative;
  background: linear-gradient(145deg, rgba(16, 39, 66, 0.9), rgba(13, 29, 50, 0.95));
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--spacing-2xl);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}

.card::before, .panel::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(124, 199, 255, 0.08), transparent 40%);
  pointer-events: none;
}

.card:hover, .panel:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: rgba(124, 199, 255, 0.6); }

.card-header, .panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-md);
  padding-bottom: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
  border-bottom: 1px solid var(--color-border);
}

.card-title, .panel-title { font-size: var(--font-size-xl); margin: 0; }
.card-body, .panel-body { position: relative; z-index: 1; color: var(--color-text-muted); }
.card-footer, .panel-footer { padding-top: var(--spacing-lg); border-top: 1px solid var(--color-border); color: var(--color-text-faint); font-size: var(--font-size-sm); }

.panel-dense { padding: var(--spacing-xl); }

/* ========== 工业元素 ========== */
.status-led {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.05);
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
  font-family: var(--font-family-mono);
  letter-spacing: 0.6px;
}
.status-led::before {
  content: '';
  width: 10px; height: 10px; border-radius: 50%;
  background: #27AE60;
  box-shadow: 0 0 0 6px rgba(39, 174, 96, 0.18);
  animation: led-blink 2.2s ease-in-out infinite;
}
.status-led.warning::before { background: var(--color-accent); box-shadow: 0 0 0 6px rgba(241, 196, 15, 0.25); }
.status-led.danger::before { background: #E74C3C; box-shadow: 0 0 0 6px rgba(231, 76, 60, 0.25); animation-duration: 1s; }
.status-led.secondary::before { background: #4b7ed9; box-shadow: 0 0 0 6px rgba(75, 126, 217, 0.25); }

.mono-label { font-family: var(--font-family-mono); letter-spacing: 1px; font-size: var(--font-size-sm); color: var(--color-text-muted); text-transform: uppercase; }

.chip {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: 999px;
  background: rgba(124, 199, 255, 0.12);
  color: #cbe6ff;
  font-size: var(--font-size-sm);
  border: 1px solid rgba(124, 199, 255, 0.35);
}
.chip-warning { background: rgba(241, 196, 15, 0.14); color: #f8d76c; border-color: rgba(241, 196, 15, 0.35); }
.chip-ghost { background: transparent; border: 1px dashed var(--color-border); color: var(--color-text-muted); }

.badge { display: inline-flex; align-items: center; padding: var(--spacing-xs) var(--spacing-sm); border-radius: var(--radius-sm); background: rgba(255, 255, 255, 0.06); color: var(--color-text); font-size: var(--font-size-xs); letter-spacing: 0.4px; text-transform: uppercase; }
.badge-accent { background: rgba(241, 196, 15, 0.18); color: #f5d879; }
.badge-secondary { background: rgba(75, 126, 217, 0.16); color: #9ac7ff; }

.metric { display: flex; align-items: center; gap: var(--spacing-md); padding: var(--spacing-lg); border-radius: var(--radius-lg); background: linear-gradient(120deg, rgba(75, 126, 217, 0.1), rgba(30, 58, 95, 0.16)); border: 1px solid var(--color-border); }
.metric-value { font-size: 30px; font-weight: 700; color: #f5f9ff; }
.metric-label { color: var(--color-text-muted); font-size: var(--font-size-sm); }

.divider { height: 1px; background: linear-gradient(90deg, transparent, var(--color-border), transparent); margin: var(--spacing-2xl) 0; }

/* ========== 表格与列表 ========== */
table { width: 100%; border-collapse: collapse; margin: var(--spacing-2xl) 0; background: rgba(13, 33, 55, 0.85); border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-sm); }
thead { background: linear-gradient(90deg, rgba(75, 126, 217, 0.18), rgba(30, 58, 95, 0.18)); color: #f5f9ff; }
th, td { padding: var(--spacing-lg); text-align: left; border-bottom: 1px solid var(--color-border); }
tbody tr:hover { background: rgba(124, 199, 255, 0.05); }

ul { margin-left: var(--spacing-lg); color: var(--color-text-muted); }
.list-unstyled { list-style: none; margin: 0; padding: 0; }
.list-check li { list-style: none; position: relative; padding-left: 24px; margin-bottom: var(--spacing-md); }
.list-check li::before { content: '✓'; position: absolute; left: 0; top: 0; color: #7cc7ff; font-weight: 700; }

/* ========== 工具类 ========== */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-left { text-align: left; }
.text-muted { color: var(--color-text-muted); }
.text-faint { color: var(--color-text-faint); }
.text-primary { color: #7cc7ff; }
.text-accent { color: var(--color-accent); }

.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }
.mt-2xl { margin-top: var(--spacing-2xl); }

.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }
.mb-2xl { margin-bottom: var(--spacing-2xl); }

.pt-lg { padding-top: var(--spacing-lg); }
.pb-lg { padding-bottom: var(--spacing-lg); }
.px-lg { padding-left: var(--spacing-lg); padding-right: var(--spacing-lg); }
.py-lg { padding-top: var(--spacing-lg); padding-bottom: var(--spacing-lg); }

.pill { display: inline-block; padding: var(--spacing-xs) var(--spacing-md); border-radius: 999px; border: 1px solid var(--color-border); color: var(--color-text-muted); font-size: var(--font-size-xs); letter-spacing: 0.4px; }

.link-industrial { color: #9dd6ff; font-weight: 600; font-family: var(--font-family-mono); letter-spacing: 0.6px; }
.link-industrial:hover { color: #f1c40f; text-decoration: none; }

.hidden { display: none !important; }
.visible { display: block !important; }

/* ========== 动画 ========== */
@keyframes grid-pulse { 0%, 100% { opacity: 0.35; } 50% { opacity: 0.55; } }
@keyframes led-blink { 0%, 100% { opacity: 1; box-shadow: 0 0 0 6px currentColor; } 50% { opacity: 0.6; box-shadow: 0 0 0 3px currentColor; } }
@keyframes gauge-fill { to { stroke-dashoffset: 70; } }

/* ========== 响应式设计 ========== */
@media (max-width: 1200px) {
  :root { --container-padding: 18px; --font-size-5xl: 38px; }
}

@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  h1 { font-size: 36px; }
}

@media (max-width: 768px) {
  :root { --container-padding: 16px; --font-size-5xl: 32px; --font-size-4xl: 26px; --font-size-3xl: 22px; --font-size-2xl: 18px; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .flex { flex-direction: column; align-items: flex-start; gap: var(--spacing-lg); }
  button, .btn { width: 100%; }
}

@media (max-width: 480px) {
  :root { --font-size-5xl: 28px; --font-size-4xl: 22px; --font-size-3xl: 20px; }
  .card, .panel { padding: var(--spacing-xl); }
}