/* ============================================================
   合肥八云信息科技有限公司 - 企业官网样式
   深色赛博朋克 · 霓虹蓝紫青 · 电路板暗纹 · 未来极简科技风
   ============================================================ */

/* --- CSS 自定义属性 --- */
:root {
  /* 主色系 */
  --bg-deep: #06060e;
  --bg-primary: #0a0a18;
  --bg-secondary: #0d0d20;
  --bg-card: rgba(12, 14, 30, 0.75);
  --bg-card-hover: rgba(16, 18, 38, 0.88);
  --bg-glass: rgba(10, 14, 28, 0.65);

  /* 霓虹色系 */
  --neon-blue: #00c6ff;
  --neon-blue-dim: #0088cc;
  --neon-purple: #a855f7;
  --neon-purple-dim: #7c3aed;
  --neon-cyan: #00e5a0;
  --neon-cyan-dim: #00b87a;

  /* 文字 */
  --text-primary: #e0e4f0;
  --text-secondary: #9ca3b8;
  --text-muted: #6b7280;
  --text-bright: #ffffff;

  /* 边框 */
  --border-subtle: rgba(80, 100, 160, 0.18);
  --border-glow: rgba(0, 198, 255, 0.35);
  --border-purple: rgba(168, 85, 247, 0.3);

  /* 字号 */
  --font-xs: 0.75rem;
  --font-sm: 0.875rem;
  --font-base: 1rem;
  --font-lg: 1.125rem;
  --font-xl: 1.25rem;
  --font-2xl: 1.5rem;
  --font-3xl: 1.875rem;
  --font-4xl: 2.25rem;
  --font-5xl: 3rem;

  /* 间距 */
  --space-section: 100px;
  --space-block: 60px;
  --max-width: 1280px;

  /* 其他 */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font-mono: 'SF Mono', 'JetBrains Mono', 'Fira Code', 'Cascadia Code', 'Consolas', monospace;
  --font-sans: 'Inter', 'SF Pro Display', 'PingFang SC', 'Microsoft YaHei', sans-serif;
}

/* --- Reset & Base --- */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-deep);
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
  min-height: 100vh;
}

/* 电路板暗纹背景 */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    /* 底层深空黑 */
    radial-gradient(ellipse at 20% 20%, rgba(0, 198, 255, 0.04) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 60%, rgba(168, 85, 247, 0.04) 0%, transparent 60%),
    radial-gradient(ellipse at 50% 100%, rgba(0, 229, 160, 0.03) 0%, transparent 50%),
    var(--bg-deep);
}

/* 电路板纹理层 */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: 0.06;
  background-image:
    /* 水平走线 */
    repeating-linear-gradient(
      0deg,
      transparent,
      transparent 59px,
      rgba(0, 198, 255, 0.5) 59px,
      rgba(0, 198, 255, 0.5) 60px
    ),
    /* 垂直走线 */
    repeating-linear-gradient(
      90deg,
      transparent,
      transparent 59px,
      rgba(168, 85, 247, 0.5) 59px,
      rgba(168, 85, 247, 0.5) 60px
    ),
    /* 小圆点节点 */
    radial-gradient(circle at 120px 120px, rgba(0, 198, 255, 0.8) 1px, transparent 1px),
    radial-gradient(circle at 300px 300px, rgba(168, 85, 247, 0.8) 1px, transparent 1px),
    radial-gradient(circle at 480px 180px, rgba(0, 229, 160, 0.8) 1px, transparent 1px),
    radial-gradient(circle at 660px 420px, rgba(0, 198, 255, 0.8) 1px, transparent 1px),
    radial-gradient(circle at 840px 240px, rgba(168, 85, 247, 0.8) 1px, transparent 1px),
    radial-gradient(circle at 1020px 360px, rgba(0, 229, 160, 0.8) 1px, transparent 1px),
    radial-gradient(circle at 180px 480px, rgba(0, 198, 255, 0.6) 1.5px, transparent 1.5px),
    radial-gradient(circle at 540px 540px, rgba(168, 85, 247, 0.6) 1.5px, transparent 1.5px),
    radial-gradient(circle at 900px 480px, rgba(0, 229, 160, 0.6) 1.5px, transparent 1.5px),
    radial-gradient(circle at 1140px 180px, rgba(0, 198, 255, 0.6) 1.5px, transparent 1.5px);
  background-size:
    60px 60px,
    60px 60px,
    1200px 600px;
}

/* --- 排版 --- */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: -0.01em;
}

a {
  color: var(--neon-blue);
  text-decoration: none;
  transition: var(--transition);
}
a:hover {
  color: var(--neon-cyan);
}

/* --- 工具类 --- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* 霓虹发光标题 */
.neon-title {
  font-family: var(--font-mono);
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--text-bright);
  text-shadow:
    0 0 7px rgba(0, 198, 255, 0.6),
    0 0 20px rgba(0, 198, 255, 0.3),
    0 0 40px rgba(0, 198, 255, 0.15),
    0 0 80px rgba(168, 85, 247, 0.1);
}

.neon-title.purple {
  text-shadow:
    0 0 7px rgba(168, 85, 247, 0.6),
    0 0 20px rgba(168, 85, 247, 0.3),
    0 0 40px rgba(168, 85, 247, 0.15),
    0 0 80px rgba(0, 198, 255, 0.1);
}

.neon-title.cyan {
  text-shadow:
    0 0 7px rgba(0, 229, 160, 0.6),
    0 0 20px rgba(0, 229, 160, 0.3),
    0 0 40px rgba(0, 229, 160, 0.15),
    0 0 80px rgba(0, 198, 255, 0.1);
}

/* 渐变文字 */
.gradient-text {
  background: linear-gradient(135deg, var(--neon-blue), var(--neon-purple), var(--neon-cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.gradient-text.blue-purple {
  background: linear-gradient(135deg, var(--neon-blue), var(--neon-purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.gradient-text.blue-cyan {
  background: linear-gradient(135deg, var(--neon-blue), var(--neon-cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* --- 导航栏 --- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(6, 6, 14, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
  transition: var(--transition);
}

.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: var(--font-lg);
  font-weight: 700;
  color: var(--text-bright);
  letter-spacing: 0.06em;
  white-space: nowrap;
}

.logo-icon {
  width: 34px;
  height: 34px;
  border: 2px solid var(--neon-blue);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  color: var(--neon-blue);
  box-shadow: 0 0 10px rgba(0, 198, 255, 0.3), inset 0 0 10px rgba(0, 198, 255, 0.1);
  flex-shrink: 0;
}

.nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-link {
  display: block;
  padding: 8px 14px;
  font-size: var(--font-sm);
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  transition: var(--transition);
  letter-spacing: 0.03em;
  white-space: nowrap;
}

.nav-link:hover,
.nav-link.active {
  color: var(--neon-blue);
  background: rgba(0, 198, 255, 0.08);
  text-shadow: 0 0 8px rgba(0, 198, 255, 0.3);
}

/* 汉堡菜单按钮 */
.menu-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  font-size: 1.2rem;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.menu-toggle:hover {
  border-color: var(--neon-blue);
  color: var(--neon-blue);
}

/* --- 区域通用 --- */
.section {
  padding: var(--space-section) 0;
  position: relative;
}

.section-label {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: var(--font-xs);
  color: var(--neon-blue);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-bottom: 12px;
  padding: 4px 12px;
  border: 1px solid rgba(0, 198, 255, 0.25);
  border-radius: 2px;
  background: rgba(0, 198, 255, 0.05);
}

.section-title {
  font-family: var(--font-mono);
  font-size: var(--font-4xl);
  font-weight: 700;
  margin-bottom: 16px;
  letter-spacing: 0.03em;
}

.section-subtitle {
  font-size: var(--font-lg);
  color: var(--text-secondary);
  max-width: 700px;
  margin-bottom: 40px;
  line-height: 1.6;
}

/* --- Hero / 首页首屏 --- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 100px 0 80px;
  position: relative;
}

.hero-content {
  max-width: 800px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: var(--font-xs);
  color: var(--neon-cyan);
  padding: 6px 16px;
  border: 1px solid rgba(0, 229, 160, 0.3);
  border-radius: 2px;
  margin-bottom: 28px;
  background: rgba(0, 229, 160, 0.05);
  letter-spacing: 0.1em;
}

.hero-badge .dot {
  width: 6px;
  height: 6px;
  background: var(--neon-cyan);
  border-radius: 50%;
  box-shadow: 0 0 6px var(--neon-cyan);
}

.hero-title {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 20px;
  letter-spacing: 0.02em;
}

.hero-subtitle {
  font-size: var(--font-xl);
  color: var(--text-secondary);
  margin-bottom: 12px;
  font-weight: 500;
  line-height: 1.5;
}

.hero-desc {
  font-size: var(--font-base);
  color: var(--text-muted);
  max-width: 640px;
  margin-bottom: 36px;
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* --- 按钮 --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  font-family: var(--font-mono);
  font-size: var(--font-sm);
  font-weight: 600;
  letter-spacing: 0.05em;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, rgba(0, 198, 255, 0.2), rgba(168, 85, 247, 0.2));
  border-color: var(--neon-blue);
  color: var(--neon-blue);
  box-shadow: 0 0 20px rgba(0, 198, 255, 0.12), inset 0 0 20px rgba(0, 198, 255, 0.05);
}

.btn-primary:hover {
  background: linear-gradient(135deg, rgba(0, 198, 255, 0.3), rgba(168, 85, 247, 0.3));
  box-shadow: 0 0 30px rgba(0, 198, 255, 0.25), inset 0 0 30px rgba(0, 198, 255, 0.1);
  color: var(--text-bright);
  transform: translateY(-1px);
}

.btn-ghost {
  background: transparent;
  border-color: var(--border-subtle);
  color: var(--text-secondary);
}

.btn-ghost:hover {
  border-color: var(--neon-purple);
  color: var(--neon-purple);
  box-shadow: 0 0 15px rgba(168, 85, 247, 0.15);
}

/* --- 卡片系统 --- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.card-grid.two-col {
  grid-template-columns: repeat(2, 1fr);
}

.card-grid.three-col {
  grid-template-columns: repeat(3, 1fr);
}

.card-grid.four-col {
  grid-template-columns: repeat(4, 1fr);
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 32px 28px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

/* 卡片悬浮微光边框 */
.card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius-md);
  padding: 1px;
  background: linear-gradient(135deg, transparent 40%, rgba(0, 198, 255, 0.15), rgba(168, 85, 247, 0.15), transparent 70%);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity 0.4s ease;
}

.card:hover::before {
  opacity: 1;
}

.card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-glow);
  box-shadow: 0 0 30px rgba(0, 198, 255, 0.08), 0 8px 32px rgba(0, 0, 0, 0.4);
  transform: translateY(-2px);
}

.card-icon {
  font-size: 2rem;
  margin-bottom: 16px;
  display: block;
}

.card-title {
  font-family: var(--font-mono);
  font-size: var(--font-lg);
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text-bright);
  letter-spacing: 0.03em;
}

.card-desc {
  font-size: var(--font-sm);
  color: var(--text-secondary);
  line-height: 1.7;
}

.card-icon-badge {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 16px;
  border: 1px solid;
}

.card-icon-badge.blue {
  border-color: rgba(0, 198, 255, 0.4);
  background: rgba(0, 198, 255, 0.08);
  color: var(--neon-blue);
  box-shadow: 0 0 12px rgba(0, 198, 255, 0.15);
}

.card-icon-badge.purple {
  border-color: rgba(168, 85, 247, 0.4);
  background: rgba(168, 85, 247, 0.08);
  color: var(--neon-purple);
  box-shadow: 0 0 12px rgba(168, 85, 247, 0.15);
}

.card-icon-badge.cyan {
  border-color: rgba(0, 229, 160, 0.4);
  background: rgba(0, 229, 160, 0.08);
  color: var(--neon-cyan);
  box-shadow: 0 0 12px rgba(0, 229, 160, 0.15);
}

/* --- 分隔线 --- */
.divider {
  width: 60px;
  height: 2px;
  background: linear-gradient(90deg, var(--neon-blue), var(--neon-purple));
  margin: 16px 0 24px;
  border: none;
  opacity: 0.7;
}

/* --- 关于我们 --- */
.stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  margin: 48px 0;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--bg-card);
}

.stat-item {
  padding: 28px 20px;
  text-align: center;
  border-right: 1px solid var(--border-subtle);
  position: relative;
}

.stat-item:last-child {
  border-right: none;
}

.stat-number {
  font-family: var(--font-mono);
  font-size: var(--font-3xl);
  font-weight: 800;
  background: linear-gradient(135deg, var(--neon-blue), var(--neon-cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-label {
  font-size: var(--font-xs);
  color: var(--text-muted);
  margin-top: 4px;
  letter-spacing: 0.06em;
}

/* 优势列表 */
.advantage-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-top: 32px;
}

.advantage-item {
  display: flex;
  gap: 14px;
  padding: 20px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.advantage-item:hover {
  border-color: var(--border-glow);
  background: var(--bg-card-hover);
}

.advantage-icon {
  width: 40px;
  height: 40px;
  flex-shrink: 0;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  border: 1px solid var(--border-subtle);
  background: rgba(0, 198, 255, 0.05);
}

.advantage-text h4 {
  font-size: var(--font-sm);
  font-weight: 600;
  color: var(--text-bright);
  margin-bottom: 4px;
}

.advantage-text p {
  font-size: var(--font-xs);
  color: var(--text-muted);
  line-height: 1.6;
}

/* --- 产品页 --- */
.arch-diagram {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  margin: 48px 0;
  flex-wrap: wrap;
}

.arch-block {
  padding: 32px 36px;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  text-align: center;
  min-width: 200px;
  background: var(--bg-card);
  position: relative;
}

.arch-block.top {
  border-color: rgba(168, 85, 247, 0.4);
  background: rgba(168, 85, 247, 0.06);
}

.arch-block.mid {
  border-color: rgba(0, 198, 255, 0.5);
  background: rgba(0, 198, 255, 0.08);
  box-shadow: 0 0 30px rgba(0, 198, 255, 0.12);
  z-index: 1;
}

.arch-block.bottom {
  border-color: rgba(0, 229, 160, 0.4);
  background: rgba(0, 229, 160, 0.06);
}

.arch-arrow {
  font-size: 1.5rem;
  color: var(--neon-blue);
  margin: 0 8px;
  opacity: 0.6;
}

.arch-block-label {
  font-family: var(--font-mono);
  font-size: var(--font-xs);
  color: var(--text-muted);
  letter-spacing: 0.1em;
  margin-bottom: 6px;
  text-transform: uppercase;
}

.arch-block-title {
  font-family: var(--font-mono);
  font-size: var(--font-lg);
  font-weight: 700;
  color: var(--text-bright);
}

/* 技术标签 */
.tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}

.tech-tag {
  display: inline-block;
  padding: 4px 12px;
  font-family: var(--font-mono);
  font-size: var(--font-xs);
  border: 1px solid var(--border-subtle);
  border-radius: 2px;
  color: var(--text-secondary);
  background: rgba(0, 198, 255, 0.04);
  letter-spacing: 0.04em;
}

/* --- 生态合作 --- */
.eco-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 20px;
  margin-top: 32px;
}

.eco-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 24px;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  font-family: var(--font-mono);
  font-size: var(--font-sm);
  color: var(--text-secondary);
  transition: var(--transition);
}

.eco-item:hover {
  border-color: var(--border-purple);
  color: var(--neon-purple);
  box-shadow: 0 0 20px rgba(168, 85, 247, 0.1);
}

.eco-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--neon-blue);
  box-shadow: 0 0 8px var(--neon-blue);
}

/* --- 生态合作卡片 V2 --- */
.eco-grid-v2 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.eco-card-v2 {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 24px 22px;
  transition: var(--transition);
  position: relative;
}

.eco-card-v2:hover {
  border-color: var(--border-glow);
  background: var(--bg-card-hover);
  transform: translateY(-2px);
  box-shadow: 0 0 24px rgba(0, 198, 255, 0.06);
}

.eco-card-v2.connected {
  border-color: rgba(0, 229, 160, 0.35);
  background: rgba(0, 229, 160, 0.04);
}

.eco-card-v2.connected:hover {
  border-color: var(--neon-cyan);
  box-shadow: 0 0 24px rgba(0, 229, 160, 0.12);
}

.eco-card-status {
  font-family: var(--font-mono);
  font-size: var(--font-xs);
  color: var(--text-muted);
  margin-bottom: 14px;
  letter-spacing: 0.05em;
}

.eco-card-status.connected {
  color: var(--neon-cyan);
}

.eco-card-status.planned {
  color: var(--text-muted);
  opacity: 0.6;
}

.eco-card-platform {
  font-family: var(--font-mono);
  font-size: var(--font-lg);
  font-weight: 700;
  color: var(--text-bright);
  margin-bottom: 2px;
  letter-spacing: 0.03em;
}

.eco-card-sub {
  font-family: var(--font-mono);
  font-size: var(--font-xs);
  color: var(--neon-blue);
  margin-bottom: 10px;
  letter-spacing: 0.04em;
}

.eco-card-desc {
  font-size: var(--font-xs);
  color: var(--text-muted);
  line-height: 1.6;
}

/* --- 解决方案 --- */
.solution-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.solution-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 32px;
  transition: var(--transition);
}

.solution-card:hover {
  border-color: var(--border-glow);
  box-shadow: 0 0 30px rgba(0, 198, 255, 0.06);
  background: var(--bg-card-hover);
}

.solution-num {
  font-family: var(--font-mono);
  font-size: var(--font-2xl);
  font-weight: 800;
  color: var(--neon-blue);
  opacity: 0.5;
  margin-bottom: 8px;
}

.solution-title {
  font-family: var(--font-mono);
  font-size: var(--font-lg);
  font-weight: 700;
  color: var(--text-bright);
  margin-bottom: 8px;
}

.solution-desc {
  font-size: var(--font-sm);
  color: var(--text-secondary);
  line-height: 1.7;
}

/* --- 页脚 --- */
.footer {
  background: rgba(6, 6, 14, 0.95);
  border-top: 1px solid var(--border-subtle);
  padding: 32px 0;
  position: relative;
}

.footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--neon-blue), var(--neon-purple), var(--neon-cyan), transparent);
  opacity: 0.5;
}

.footer-slogan {
  text-align: center;
  font-family: var(--font-mono);
  font-size: var(--font-sm);
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.footer-slogan span {
  color: var(--neon-blue);
}

.footer-info {
  text-align: center;
  font-size: var(--font-xs);
  color: var(--text-muted);
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
}

.footer-info a {
  color: var(--text-secondary);
}

.footer-info a:hover {
  color: var(--neon-cyan);
}

/* --- 联系页面 --- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

.contact-info-block {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 32px;
}

.contact-info-block h3 {
  font-family: var(--font-mono);
  font-size: var(--font-lg);
  margin-bottom: 20px;
  color: var(--text-bright);
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 16px;
}

.contact-item-icon {
  width: 36px;
  height: 36px;
  flex-shrink: 0;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  border: 1px solid var(--border-subtle);
  background: rgba(0, 198, 255, 0.05);
}

.contact-item-label {
  font-size: var(--font-xs);
  color: var(--text-muted);
  letter-spacing: 0.06em;
  margin-bottom: 2px;
}

.contact-item-value {
  font-size: var(--font-sm);
  color: var(--text-primary);
}

.contact-item-value a {
  color: var(--neon-blue);
}

/* --- 企业愿景 --- */
.vision-block {
  text-align: center;
  padding: 60px 40px;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  background: var(--bg-card);
  position: relative;
  overflow: hidden;
  margin-top: 48px;
}

.vision-block::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, rgba(0, 198, 255, 0.05) 0%, transparent 70%);
}

.vision-text {
  position: relative;
  font-family: var(--font-mono);
  font-size: var(--font-2xl);
  font-weight: 700;
  color: var(--text-bright);
  text-shadow: 0 0 20px rgba(0, 198, 255, 0.2);
  line-height: 1.5;
}

.vision-sub {
  position: relative;
  margin-top: 12px;
  font-size: var(--font-base);
  color: var(--text-secondary);
  line-height: 1.6;
}

/* --- 专利/亮点 --- */
.highlight-bar {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  margin: 40px 0;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.highlight-item {
  padding: 24px 20px;
  text-align: center;
  border-right: 1px solid var(--border-subtle);
  background: var(--bg-card);
}

.highlight-item:last-child {
  border-right: none;
}

.highlight-icon {
  font-size: 1.6rem;
  margin-bottom: 8px;
}

.highlight-title {
  font-family: var(--font-mono);
  font-size: var(--font-sm);
  font-weight: 700;
  color: var(--text-bright);
  margin-bottom: 4px;
}

.highlight-desc {
  font-size: var(--font-xs);
  color: var(--text-muted);
}

/* --- 开源项目 --- */
.opensource-hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
  margin-bottom: 48px;
}

.opensource-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: var(--font-xs);
  padding: 6px 14px;
  border: 1px solid rgba(0, 229, 160, 0.35);
  border-radius: 2px;
  color: var(--neon-cyan);
  background: rgba(0, 229, 160, 0.05);
  margin-bottom: 20px;
  letter-spacing: 0.08em;
}

.opensource-title {
  font-family: var(--font-mono);
  font-size: var(--font-3xl);
  font-weight: 800;
  margin-bottom: 12px;
  letter-spacing: 0.03em;
}

.opensource-desc {
  font-size: var(--font-base);
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 20px;
}

.pain-points {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 28px;
}

.pain-points h4 {
  font-family: var(--font-mono);
  font-size: var(--font-sm);
  color: var(--neon-purple);
  margin-bottom: 16px;
  letter-spacing: 0.06em;
}

.pain-list {
  list-style: none;
}

.pain-list li {
  position: relative;
  padding-left: 20px;
  font-size: var(--font-sm);
  color: var(--text-secondary);
  margin-bottom: 8px;
  line-height: 1.6;
}

.pain-list li::before {
  content: '×';
  position: absolute;
  left: 0;
  color: rgba(255, 80, 80, 0.6);
  font-weight: 700;
}

.capability-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 32px;
}

.capability-item {
  padding: 24px;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  text-align: center;
  transition: var(--transition);
}

.capability-item:hover {
  border-color: var(--neon-cyan);
  box-shadow: 0 0 20px rgba(0, 229, 160, 0.08);
}

.capability-item .cap-icon {
  font-size: 1.8rem;
  margin-bottom: 10px;
}

.capability-item .cap-title {
  font-family: var(--font-mono);
  font-size: var(--font-sm);
  font-weight: 600;
  color: var(--text-bright);
  margin-bottom: 4px;
}

.capability-item .cap-desc {
  font-size: var(--font-xs);
  color: var(--text-muted);
}

.empower-box {
  padding: 36px;
  border: 1px solid rgba(0, 229, 160, 0.3);
  border-radius: var(--radius-md);
  background: rgba(0, 229, 160, 0.04);
  text-align: center;
}

.empower-box h3 {
  font-family: var(--font-mono);
  font-size: var(--font-xl);
  color: var(--neon-cyan);
  margin-bottom: 10px;
  letter-spacing: 0.04em;
}

.empower-box p {
  font-size: var(--font-base);
  color: var(--text-secondary);
  line-height: 1.7;
}

/* --- 技术优势 --- */
.advantage-section {
  margin-bottom: 48px;
}

.advantage-section:last-child {
  margin-bottom: 0;
}

.advantage-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 20px;
}

.advantage-num {
  font-family: var(--font-mono);
  font-size: var(--font-2xl);
  font-weight: 800;
  color: var(--neon-blue);
  opacity: 0.3;
  flex-shrink: 0;
}

.advantage-main-title {
  font-family: var(--font-mono);
  font-size: var(--font-xl);
  font-weight: 700;
  color: var(--text-bright);
}

.advantage-body {
  padding-left: 56px;
  font-size: var(--font-base);
  color: var(--text-secondary);
  line-height: 1.8;
  max-width: 800px;
}

/* --- 响应式 --- */
@media (max-width: 1024px) {
  :root {
    --space-section: 80px;
  }

  .card-grid.four-col {
    grid-template-columns: repeat(2, 1fr);
  }

  .card-grid.three-col {
    grid-template-columns: repeat(2, 1fr);
  }

  .stats-row {
    grid-template-columns: repeat(2, 1fr);
  }

  .highlight-bar {
    grid-template-columns: repeat(3, 1fr);
  }

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

  .opensource-hero {
    grid-template-columns: 1fr;
  }

  .capability-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .eco-grid-v2 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  :root {
    --space-section: 64px;
    --font-4xl: 1.75rem;
    --font-3xl: 1.5rem;
    --font-2xl: 1.25rem;
    --font-xl: 1.125rem;
  }

  /* 移动端导航 */
  .nav {
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(6, 6, 14, 0.96);
    backdrop-filter: blur(20px);
    flex-direction: column;
    align-items: stretch;
    padding: 20px;
    gap: 2px;
    transform: translateX(100%);
    transition: transform 0.3s ease;
    z-index: 999;
  }

  .nav.open {
    transform: translateX(0);
  }

  .nav-link {
    padding: 14px 16px;
    font-size: var(--font-base);
    border-radius: var(--radius-sm);
  }

  .menu-toggle {
    display: flex;
  }

  .card-grid,
  .card-grid.two-col,
  .card-grid.three-col,
  .card-grid.four-col {
    grid-template-columns: 1fr;
  }

  .stats-row {
    grid-template-columns: repeat(2, 1fr);
  }

  .advantage-list {
    grid-template-columns: 1fr;
  }

  .highlight-bar {
    grid-template-columns: 1fr;
  }

  .highlight-item {
    border-right: none;
    border-bottom: 1px solid var(--border-subtle);
  }

  .highlight-item:last-child {
    border-bottom: none;
  }

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

  .arch-diagram {
    flex-direction: column;
    gap: 12px;
  }

  .arch-arrow {
    transform: rotate(90deg);
  }

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

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

  .eco-grid-v2 {
    grid-template-columns: 1fr;
  }

  .advantage-body {
    padding-left: 0;
  }

  .advantage-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
  }

  .hero-title {
    font-size: 1.75rem;
  }

  .section-title {
    font-size: 1.6rem;
  }

  .vision-text {
    font-size: var(--font-xl);
  }

  .opensource-title {
    font-size: var(--font-2xl);
  }

  .eco-grid {
    justify-content: flex-start;
  }

  .footer-slogan {
    font-size: var(--font-xs);
    letter-spacing: 0.04em;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }

  .stats-row {
    grid-template-columns: 1fr 1fr;
  }

  .stat-item {
    padding: 20px 12px;
  }

  .hero-actions {
    flex-direction: column;
  }

  .hero-actions .btn {
    justify-content: center;
  }

  .card {
    padding: 24px 20px;
  }

  .vision-block {
    padding: 40px 20px;
  }

  /* 轮播移动端 */
  .banner .container {
    padding: 0 12px;
  }

  .banner-slide-content h1 {
    font-size: 1.5rem;
  }

  .banner-slide-content p {
    font-size: 0.8rem;
  }

  .carousel-dots {
    bottom: 16px;
  }

  .carousel-arrow {
    width: 36px;
    height: 36px;
    font-size: 0.9rem;
  }
}

/* ============================================================
   首页 Banner 轮播系统
   ============================================================ */

/* Banner 整体容器 */
.banner {
  position: relative;
  width: 100%;
  height: 100vh;
  min-height: 600px;
  max-height: 900px;
  overflow: hidden;
  background: var(--bg-deep);
}

/* 轮播轨道 */
.carousel-track {
  display: flex;
  height: 100%;
  transition: transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
  will-change: transform;
}

/* 单张幻灯片 */
.carousel-slide {
  flex: 0 0 100%;
  height: 100%;
  position: relative;
  display: flex;
  align-items: center;
  overflow: hidden;
}

/* 幻灯片背景 SVG 层 */
.slide-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  opacity: 0.15;
}

.slide-bg svg {
  width: 100%;
  height: 100%;
}

/* 幻灯片数据流粒子覆盖层 */
.slide-particles {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
}

/* 幻灯片暗色遮罩 */
.slide-overlay {
  position: absolute;
  inset: 0;
  z-index: 2;
  background:
    radial-gradient(ellipse at 30% 50%, rgba(0, 198, 255, 0.04) 0%, transparent 60%),
    radial-gradient(ellipse at 70% 30%, rgba(168, 85, 247, 0.03) 0%, transparent 55%),
    radial-gradient(ellipse at 50% 80%, rgba(0, 229, 160, 0.03) 0%, transparent 50%),
    rgba(6, 6, 14, 0.2);
}

/* 幻灯片内容 */
.carousel-slide .container {
  position: relative;
  z-index: 3;
  display: flex;
  align-items: center;
  height: 100%;
}

.banner-slide-content {
  max-width: 750px;
}

.banner-slide-content .slide-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: var(--font-xs);
  color: var(--neon-cyan);
  padding: 5px 14px;
  border: 1px solid rgba(0, 229, 160, 0.3);
  border-radius: 2px;
  margin-bottom: 24px;
  background: rgba(0, 229, 160, 0.06);
  letter-spacing: 0.1em;
}

.slide-badge .badge-dot {
  width: 6px;
  height: 6px;
  background: var(--neon-cyan);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--neon-cyan);
}

.banner-slide-content h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 18px;
  letter-spacing: 0.02em;
  color: var(--text-bright);
  text-shadow: 0 0 30px rgba(0, 198, 255, 0.15);
}

.banner-slide-content h2 {
  font-family: var(--font-mono);
  font-size: clamp(1.25rem, 3.5vw, 2.25rem);
  font-weight: 700;
  margin-bottom: 14px;
  letter-spacing: 0.03em;
  color: var(--text-bright);
}

.banner-slide-content .slide-subtitle {
  font-size: var(--font-lg);
  color: var(--text-secondary);
  margin-bottom: 10px;
  font-weight: 500;
  line-height: 1.5;
}

.banner-slide-content .slide-desc {
  font-size: var(--font-base);
  color: var(--text-muted);
  max-width: 600px;
  margin-bottom: 32px;
  line-height: 1.8;
}

.banner-slide-content .slide-stats {
  display: flex;
  gap: 32px;
  margin-bottom: 32px;
}

.slide-stat {
  text-align: left;
}

.slide-stat-num {
  font-family: var(--font-mono);
  font-size: var(--font-2xl);
  font-weight: 800;
  background: linear-gradient(135deg, var(--neon-blue), var(--neon-cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.slide-stat-label {
  font-size: var(--font-xs);
  color: var(--text-muted);
  letter-spacing: 0.06em;
}

/* 轮播左右箭头 */
.carousel-arrow {
  position: absolute;
  top: 50%;
  z-index: 10;
  width: 48px;
  height: 48px;
  border: 1px solid var(--border-subtle);
  border-radius: 50%;
  background: rgba(12, 14, 30, 0.7);
  color: var(--text-secondary);
  font-size: 1.1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transform: translateY(-50%);
  transition: var(--transition);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.carousel-arrow:hover {
  border-color: var(--neon-blue);
  color: var(--neon-blue);
  background: rgba(0, 198, 255, 0.1);
  box-shadow: 0 0 20px rgba(0, 198, 255, 0.2);
}

.carousel-arrow.prev {
  left: 24px;
}

.carousel-arrow.next {
  right: 24px;
}

/* 轮播指示器圆点 */
.carousel-dots {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 10;
  display: flex;
  gap: 10px;
}

.carousel-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.3);
  background: transparent;
  cursor: pointer;
  transition: var(--transition);
  padding: 0;
}

.carousel-dot:hover {
  border-color: var(--neon-blue);
  background: rgba(0, 198, 255, 0.2);
}

.carousel-dot.active {
  border-color: var(--neon-blue);
  background: var(--neon-blue);
  box-shadow: 0 0 12px rgba(0, 198, 255, 0.5);
}

/* ============================================================
   SVG 装饰性背景图
   ============================================================ */

/* 文字背景暗纹容器 */
.bg-pattern-wrapper {
  position: relative;
  overflow: hidden;
}

.bg-pattern-wrapper .pattern-svg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  opacity: 0.06;
}

.bg-pattern-wrapper .pattern-svg svg {
  width: 100%;
  height: 100%;
}

.bg-pattern-wrapper > * {
  position: relative;
  z-index: 1;
}

/* About 页面顶部 SVG 插图 */
.about-illustration {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
  margin-bottom: 48px;
}

.about-illustration .illust-svg {
  display: flex;
  align-items: center;
  justify-content: center;
}

.about-illustration .illust-svg svg {
  width: 100%;
  max-width: 460px;
  height: auto;
}

/* 产品页顶部 SVG 背景 */
.product-visual {
  position: relative;
  margin-bottom: 48px;
  padding: 48px 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
}

.product-visual .product-visual-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.08;
}

.product-visual .product-visual-bg svg {
  width: 100%;
  height: 100%;
}

.product-visual-content {
  position: relative;
  z-index: 1;
  text-align: center;
}

/* 解决方案区域装饰 */
.section-visual-divider {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  margin: 0 0 48px;
  opacity: 0.5;
}

.section-visual-divider svg {
  width: 100%;
  max-width: 700px;
  height: 2px;
}

/* 优势页面 Hex 网格 SVG 背景 */
.hex-bg-section {
  position: relative;
}

.hex-bg-section::before {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  opacity: 0.04;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 200 173'%3E%3Cpath d='M100 0l86.6 50v100L100 200l-86.6-50V50z' fill='none' stroke='%2300c6ff' stroke-width='1'/%3E%3C/svg%3E");
  background-size: 80px 69px;
}

/* 图片占位区（将来替换真实图片时使用） */
.img-placeholder {
  width: 100%;
  aspect-ratio: 16/9;
  background: var(--bg-card);
  border: 1px dashed var(--border-subtle);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: var(--font-xs);
  letter-spacing: 0.08em;
  position: relative;
  overflow: hidden;
}

.img-placeholder::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 30% 40%, rgba(0, 198, 255, 0.04) 0%, transparent 50%),
    radial-gradient(circle at 70% 60%, rgba(168, 85, 247, 0.04) 0%, transparent 50%);
}

/* 响应式：Banner 轮播 */
@media (max-width: 768px) {
  .banner {
    height: 85vh;
    min-height: 500px;
    max-height: 700px;
  }

  .banner-slide-content .slide-stats {
    gap: 20px;
    flex-wrap: wrap;
  }

  .carousel-arrow.prev {
    left: 8px;
  }

  .carousel-arrow.next {
    right: 8px;
  }

  .about-illustration {
    grid-template-columns: 1fr;
  }

  .product-visual {
    padding: 32px 0;
  }

  /* 图片移动端适配 */
  .content-image {
    max-width: 100%;
    height: auto;
  }

  .img-card {
    flex-direction: column;
  }

  .img-card .img-card-visual {
    width: 100%;
    height: auto;
    aspect-ratio: 16/9;
  }
}

/* ============================================================
   图片系统
   ============================================================ */

/* Banner 幻灯片背景图 */
.slide-bg-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  z-index: 0;
  opacity: 1;
  filter: brightness(0.75) saturate(0.9);
}

/* 内容图片通用 */
.content-image {
  display: block;
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
}

.content-image.glow {
  box-shadow: 0 0 20px rgba(0, 198, 255, 0.1), 0 0 40px rgba(168, 85, 247, 0.05);
}

/* 图文横排卡片 */
.img-card {
  display: flex;
  gap: 32px;
  align-items: center;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-bottom: 32px;
  transition: var(--transition);
}

.img-card:hover {
  border-color: var(--border-glow);
  box-shadow: 0 0 24px rgba(0, 198, 255, 0.06);
}

.img-card .img-card-visual {
  flex-shrink: 0;
  width: 340px;
  height: 240px;
  overflow: hidden;
}

.img-card .img-card-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.img-card:hover .img-card-visual img {
  transform: scale(1.03);
}

.img-card .img-card-body {
  flex: 1;
  padding: 24px 32px 24px 0;
}

.img-card .img-card-body h3 {
  font-family: var(--font-mono);
  font-size: var(--font-lg);
  font-weight: 700;
  color: var(--text-bright);
  margin-bottom: 8px;
}

.img-card .img-card-body p {
  font-size: var(--font-sm);
  color: var(--text-secondary);
  line-height: 1.7;
}

/* 右侧图片布局（奇数行图在左，偶数行图在右） */
.img-card.reverse {
  flex-direction: row-reverse;
}

.img-card.reverse .img-card-body {
  padding: 24px 0 24px 32px;
}

/* 图片占位提示（图片加载前显示） */
.img-placeholder-hint {
  width: 100%;
  height: 100%;
  background: var(--bg-card);
  border: 1px dashed var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: var(--font-xs);
  letter-spacing: 0.04em;
  text-align: center;
  line-height: 1.5;
}

/* 图片尚未放置时的回退方案 */
.slide-bg-img[src=""],
.slide-bg-img:not([src]) {
  display: none;
}

/* ============================================================
   痛点革新页面
   ============================================================ */

/* 板块容器 */
.pain-section-block {
  margin-bottom: 56px;
}

.pain-section-block:last-of-type {
  margin-bottom: 0;
}

.pain-section-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 28px;
}

.pain-section-num {
  font-family: var(--font-mono);
  font-size: var(--font-2xl);
  font-weight: 800;
  color: var(--neon-purple);
  opacity: 0.35;
  flex-shrink: 0;
}

.pain-section-title {
  font-family: var(--font-mono);
  font-size: var(--font-xl);
  font-weight: 700;
  color: var(--text-bright);
}

/* 高亮警示框 */
.pain-highlight-box {
  display: flex;
  gap: 16px;
  padding: 24px 28px;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  background: var(--bg-card);
  margin-bottom: 24px;
}

.pain-highlight-box.danger {
  border-color: rgba(168, 85, 247, 0.3);
  background: rgba(168, 85, 247, 0.04);
}

.pain-highlight-icon {
  font-size: 1.6rem;
  flex-shrink: 0;
  line-height: 1;
}

.pain-highlight-box h4 {
  font-family: var(--font-mono);
  font-size: var(--font-base);
  font-weight: 700;
  color: var(--text-bright);
  margin-bottom: 6px;
}

.pain-highlight-box p {
  font-size: var(--font-sm);
  color: var(--text-secondary);
  line-height: 1.75;
}

/* 子标签 */
.pain-sub-label {
  font-family: var(--font-mono);
  font-size: var(--font-sm);
  color: var(--neon-purple);
  margin-bottom: 20px;
  letter-spacing: 0.06em;
}

.pain-sub-label.cyan {
  color: var(--neon-cyan);
}

.pain-section-intro {
  font-size: var(--font-base);
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 24px;
  max-width: 900px;
}

/* 四大风险网格 */
.pain-risk-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-bottom: 32px;
}

.pain-risk-card {
  display: flex;
  gap: 14px;
  padding: 20px;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  border-left: 2px solid rgba(168, 85, 247, 0.4);
  transition: var(--transition);
}

.pain-risk-card:hover {
  border-left-color: var(--neon-purple);
  background: var(--bg-card-hover);
}

.pain-risk-icon {
  font-size: 1.3rem;
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.pain-risk-body h5 {
  font-family: var(--font-mono);
  font-size: var(--font-sm);
  font-weight: 700;
  color: var(--text-bright);
  margin-bottom: 4px;
}

.pain-risk-body p {
  font-size: var(--font-xs);
  color: var(--text-muted);
  line-height: 1.7;
}

/* 革新方案架构图 */
.revolution-arch {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  margin: 36px 0;
}

.rev-layer {
  text-align: center;
  padding: 20px 40px;
  border-radius: var(--radius-md);
  min-width: 360px;
}

.rev-layer.top {
  border: 1px solid rgba(168, 85, 247, 0.35);
  background: rgba(168, 85, 247, 0.05);
}

.rev-layer.mid {
  border: 2px solid rgba(0, 198, 255, 0.5);
  background: rgba(0, 198, 255, 0.06);
  box-shadow: 0 0 20px rgba(0, 198, 255, 0.08);
}

.rev-layer.bottom {
  border: 1px solid rgba(0, 229, 160, 0.35);
  background: rgba(0, 229, 160, 0.05);
}

.rev-layer-label {
  font-family: var(--font-mono);
  font-size: var(--font-base);
  font-weight: 700;
  color: var(--text-bright);
  margin-bottom: 4px;
}

.rev-layer-desc {
  font-size: var(--font-xs);
  color: var(--text-muted);
}

.rev-badge {
  display: inline-block;
  font-size: var(--font-xs);
  padding: 1px 8px;
  border: 1px solid rgba(0, 198, 255, 0.4);
  border-radius: 2px;
  color: var(--neon-blue);
  background: rgba(0, 198, 255, 0.08);
  vertical-align: middle;
  margin-left: 6px;
}

.rev-separator {
  font-family: var(--font-mono);
  font-size: var(--font-xs);
  color: var(--neon-blue);
  opacity: 0.5;
  padding: 4px 0;
  letter-spacing: 0.1em;
}

/* 方案要点卡片 */
.solu-point-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-bottom: 36px;
}

.solu-point-card {
  display: flex;
  gap: 14px;
  padding: 20px;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  transition: var(--transition);
}

.solu-point-card:hover {
  border-color: var(--border-glow);
  background: var(--bg-card-hover);
}

.solu-point-num {
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 800;
  color: var(--neon-cyan);
  flex-shrink: 0;
  opacity: 0.5;
}

.solu-point-card h5 {
  font-family: var(--font-mono);
  font-size: var(--font-sm);
  font-weight: 700;
  color: var(--text-bright);
  margin-bottom: 4px;
}

.solu-point-card p {
  font-size: var(--font-xs);
  color: var(--text-secondary);
  line-height: 1.7;
}

/* 总结区块 */
.pain-summary-block {
  margin-top: 48px;
  padding: 48px 40px;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  background: var(--bg-card);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.pain-summary-block::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 30% 50%, rgba(0, 198, 255, 0.04) 0%, transparent 50%),
    radial-gradient(ellipse at 70% 50%, rgba(168, 85, 247, 0.04) 0%, transparent 50%);
}

.pain-summary-quote {
  position: relative;
  font-family: var(--font-mono);
  font-size: var(--font-xl);
  font-weight: 700;
  color: var(--text-bright);
  line-height: 1.8;
  letter-spacing: 0.02em;
}

.pain-summary-desc {
  position: relative;
  margin-top: 16px;
  font-size: var(--font-base);
  color: var(--text-secondary);
  line-height: 1.7;
}

.pain-summary-divider {
  width: 80px;
  height: 2px;
  background: linear-gradient(90deg, var(--neon-blue), var(--neon-purple), var(--neon-cyan));
  margin: 24px auto;
  border: none;
  opacity: 0.6;
}

.pain-summary-tagline {
  font-family: var(--font-mono);
  font-size: var(--font-sm);
  color: var(--text-muted);
  letter-spacing: 0.06em;
}

/* 响应式 */
@media (max-width: 768px) {
  .pain-risk-grid,
  .solu-point-grid {
    grid-template-columns: 1fr;
  }

  .pain-section-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
  }

  .pain-section-title {
    font-size: var(--font-lg);
  }

  .pain-highlight-box {
    flex-direction: column;
    padding: 20px;
  }

  .rev-layer {
    min-width: unset;
    width: 100%;
    padding: 16px 24px;
  }

  .revolution-arch {
    gap: 2px;
  }

  .pain-summary-block {
    padding: 32px 20px;
  }

  .pain-summary-quote {
    font-size: var(--font-base);
  }
}

/* ============================================================
   术语释义页面
   ============================================================ */

/* 术语条目容器 */
.glossary-entry {
  margin-bottom: 0;
}

/* 术语标题区 */
.glossary-entry-header {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  margin-bottom: 32px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border-subtle);
}

.glossary-entry-num {
  font-family: var(--font-mono);
  font-size: var(--font-3xl);
  font-weight: 800;
  color: var(--neon-blue);
  opacity: 0.3;
  flex-shrink: 0;
  line-height: 1;
}

.glossary-entry-title {
  font-family: var(--font-mono);
  font-size: var(--font-2xl);
  font-weight: 700;
  color: var(--text-bright);
  letter-spacing: 0.03em;
}

.glossary-entry-tagline {
  font-size: var(--font-sm);
  color: var(--neon-purple);
  letter-spacing: 0.06em;
  margin-top: 2px;
}

/* 术语内容块 */
.glossary-block {
  display: flex;
  gap: 20px;
  margin-bottom: 20px;
  padding: 20px 24px;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  transition: var(--transition);
}

.glossary-block:hover {
  border-color: var(--border-glow);
}

.glossary-block.definition {
  border-left: 3px solid var(--neon-blue);
  background: rgba(0, 198, 255, 0.03);
}

.glossary-block.highlight {
  border-left: 3px solid var(--neon-cyan);
  background: rgba(0, 229, 160, 0.03);
}

.glossary-block-label {
  font-family: var(--font-mono);
  font-size: var(--font-xs);
  font-weight: 700;
  color: var(--neon-blue);
  letter-spacing: 0.1em;
  flex-shrink: 0;
  width: 100px;
  padding-top: 2px;
}

.glossary-block.highlight .glossary-block-label {
  color: var(--neon-cyan);
}

.glossary-block-content {
  flex: 1;
}

.glossary-block-content p {
  font-size: var(--font-sm);
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 8px;
}

.glossary-block-content p:last-child {
  margin-bottom: 0;
}

/* 术语列表 */
.glossary-list {
  list-style: none;
}

.glossary-list li {
  position: relative;
  padding-left: 22px;
  font-size: var(--font-sm);
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 6px;
}

.glossary-list li:last-child {
  margin-bottom: 0;
}

.glossary-list.check li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--neon-cyan);
  font-weight: 700;
  font-family: var(--font-mono);
}

.glossary-list.star li::before {
  content: '◆';
  position: absolute;
  left: 0;
  color: var(--neon-blue);
  font-size: 0.65rem;
}

/* 术语分隔 */
.glossary-separator {
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-subtle), transparent);
  margin: 48px 0;
}

/* 底部标语 */
.glossary-footer-tag {
  margin-top: 48px;
  text-align: center;
  font-family: var(--font-mono);
  font-size: var(--font-sm);
  color: var(--text-muted);
  letter-spacing: 0.06em;
  padding: 20px 0;
  border-top: 1px solid var(--border-subtle);
}

/* 响应式 */
@media (max-width: 768px) {
  .glossary-entry-header {
    flex-direction: column;
    gap: 8px;
  }

  .glossary-entry-title {
    font-size: var(--font-xl);
  }

  .glossary-block {
    flex-direction: column;
    gap: 10px;
    padding: 18px 16px;
  }

  .glossary-block-label {
    width: auto;
  }
}