/* ==========================================================================
   辽宁天龙发科技 - 科技感企业主题 v2
   品牌色: 主青 #00d4ff + 副紫 #6366f1
   强调色: 仅在关键数据(↓28%)使用渐变(青→紫),其余位置统一青色
   风格: 渐变流光 + 玻璃拟态 + 实时数据看板 + Logo 墙
   ========================================================================== */

* { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --bg-deep: #050b18;
  --bg-dark: #0a1929;
  --bg-mid: #0f2547;
  --bg-card: rgba(15, 37, 71, 0.6);
  --bg-glass: rgba(255, 255, 255, 0.04);

  /* 边框 */
  --border-soft: rgba(255, 255, 255, 0.08);
  --border-glow: rgba(0, 212, 255, 0.3);

  /* 品牌色: 主青 + 副紫 */
  --cyan: #00d4ff;
  --cyan-bright: #4de8ff;
  --cyan-soft: rgba(0, 212, 255, 0.15);
  --purple: #6366f1;
  --purple-light: #818cf8;
  --purple-soft: rgba(99, 102, 241, 0.15);

  /* 数据状态色 */
  --green: #10b981;
  --green-soft: rgba(16, 185, 129, 0.15);
  --red: #ef4444;

  /* 文字 */
  --text: #e6f1ff;
  --text-soft: #94a3b8;
  --text-muted: #64748b;

  /* 渐变 */
  --grad-primary: linear-gradient(135deg, #00d4ff 0%, #6366f1 100%);
  --grad-purple-cyan: linear-gradient(135deg, #6366f1 0%, #00d4ff 100%);
  --grad-cool: linear-gradient(135deg, #00d4ff 0%, #6366f1 50%, #c026d3 100%);
  --grad-bg: linear-gradient(180deg, #050b18 0%, #0a1929 50%, #0f2547 100%);
}

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
  line-height: 1.7;
  color: var(--text);
  background: var(--bg-deep);
  overflow-x: hidden;
  position: relative;
  min-height: 100vh;
}

/* 全局动态网格背景 */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(0, 212, 255, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 212, 255, 0.06) 1px, transparent 1px);
  background-size: 50px 50px;
  z-index: -2;
  pointer-events: none;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
}

body::after {
  content: '';
  position: fixed;
  top: -200px; left: -200px;
  width: 800px; height: 800px;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.15), transparent 60%);
  z-index: -1;
  pointer-events: none;
  animation: float-glow 20s ease-in-out infinite;
}

@keyframes float-glow {
  0%, 100% { transform: translate(0, 0); }
  50% { transform: translate(200px, 100px); }
}

a { color: inherit; text-decoration: none; transition: .3s; }
img { max-width: 100%; }

.container { max-width: 1240px; margin: 0 auto; padding: 0 24px; position: relative; }

/* ==== 顶部导航 ==== */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(5, 11, 24, 0.7);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-soft);
}
.nav-bar {
  display: flex; align-items: center; justify-content: space-between;
  height: 76px;
}
.logo {
  display: flex; align-items: center; gap: 14px;
  position: relative;
}
.logo-mark {
  width: 44px; height: 44px;
  background: var(--grad-primary);
  color: #fff; font-size: 22px; font-weight: 800;
  display: flex; align-items: center; justify-content: center;
  border-radius: 10px;
  box-shadow: 0 0 20px rgba(0, 212, 255, 0.5);
  position: relative;
}
.logo-mark::before {
  content: '';
  position: absolute; inset: -2px;
  background: var(--grad-primary);
  border-radius: 12px;
  z-index: -1;
  filter: blur(12px);
  opacity: .6;
}
.logo-text {
  display: flex; flex-direction: column;
  font-weight: 700; font-size: 17px;
  background: linear-gradient(90deg, #fff, #94a3b8);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.logo-text small {
  font-weight: 400; font-size: 11px;
  -webkit-text-fill-color: var(--text-soft);
}

.main-nav {
  display: flex; gap: 32px; align-items: center;
}
.main-nav a {
  font-size: 14px; color: var(--text-soft);
  position: relative; padding: 6px 0;
  font-weight: 500;
}
.main-nav a::before {
  content: '';
  position: absolute;
  left: 50%; bottom: -4px;
  width: 0; height: 2px;
  background: var(--grad-primary);
  transition: .3s;
  transform: translateX(-50%);
}
.main-nav a:hover, .main-nav a.active {
  color: var(--cyan-bright);
}
.main-nav a:hover::before, .main-nav a.active::before {
  width: 100%;
}

.nav-cta {
  background: var(--grad-primary) !important;
  color: #fff !important;
  padding: 10px 22px !important;
  border-radius: 8px;
  font-weight: 600;
  box-shadow: 0 4px 20px rgba(0, 212, 255, 0.3);
}
.nav-cta:hover {
  box-shadow: 0 4px 30px rgba(0, 212, 255, 0.6);
  transform: translateY(-2px);
}
.nav-cta::before { display: none; }

/* ==== HERO 主视觉 ==== */
.hero {
  min-height: 100vh;
  padding: 140px 0 100px;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
}

.hero::before {
  content: '';
  position: absolute; top: 20%; right: -10%;
  width: 700px; height: 700px;
  background:
    radial-gradient(circle at 30% 30%, rgba(99, 102, 241, 0.4), transparent 50%),
    radial-gradient(circle at 70% 70%, rgba(0, 212, 255, 0.3), transparent 50%);
  filter: blur(60px);
  z-index: 0;
  animation: hero-pulse 8s ease-in-out infinite;
}

@keyframes hero-pulse {
  0%, 100% { transform: scale(1) rotate(0deg); opacity: .8; }
  50% { transform: scale(1.1) rotate(5deg); opacity: 1; }
}

.hero-inner {
  position: relative; z-index: 1;
  display: grid; grid-template-columns: 1.05fr 1fr;
  gap: 60px; align-items: center;
}

.hero-tag {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 8px 18px;
  background: var(--cyan-soft);
  border: 1px solid var(--border-glow);
  border-radius: 30px;
  font-size: 13px; color: var(--cyan-bright);
  margin-bottom: 28px;
  backdrop-filter: blur(10px);
  letter-spacing: 1px;
}
.tag-dot {
  width: 8px; height: 8px;
  background: var(--cyan-bright);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--cyan-bright);
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: .4; }
}

.hero-title {
  font-size: 56px; font-weight: 800;
  line-height: 1.15; letter-spacing: -1.5px;
  margin-bottom: 24px;
  color: #fff; /* 纯白主标题,提升对比度 */
}
.hero-title .word-accent {
  color: var(--cyan-bright);
  position: relative;
  display: inline-block;
  text-shadow: 0 0 30px rgba(0, 212, 255, 0.4);
}
.hero-title .word-accent::after {
  content: '';
  position: absolute; bottom: 4px; left: 0; right: 0;
  height: 3px;
  background: var(--grad-primary);
  z-index: -1;
  border-radius: 2px;
  opacity: .8;
}

.hero-sub {
  font-size: 18px; color: var(--text-soft);
  margin-bottom: 36px; max-width: 540px;
  line-height: 1.7;
}
.hero-sub strong {
  color: var(--cyan-bright);
  font-weight: 600;
}

.hero-cta { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 40px; }

.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 16px 36px;
  border-radius: 10px; font-weight: 600; font-size: 15px;
  transition: .3s; cursor: pointer; border: none;
  font-family: inherit;
}
.btn-primary {
  background: var(--grad-primary);
  color: #fff;
  box-shadow: 0 10px 30px rgba(0, 212, 255, 0.3);
  position: relative;
  overflow: hidden;
}
.btn-primary::before {
  content: '';
  position: absolute; inset: 0;
  background: var(--grad-purple-cyan);
  opacity: 0; transition: .3s;
}
.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 15px 40px rgba(0, 212, 255, 0.5);
}
.btn-primary:hover::before { opacity: 1; }
.btn-primary span { position: relative; z-index: 1; }
.btn-ghost {
  background: var(--bg-glass);
  backdrop-filter: blur(10px);
  color: var(--text);
  border: 1px solid var(--border-soft);
}
.btn-ghost:hover {
  border-color: var(--cyan);
  color: var(--cyan-bright);
  background: rgba(0, 212, 255, 0.05);
}

/* Hero 信任标识 */
.hero-trust {
  display: flex; gap: 12px; flex-wrap: wrap;
}
.trust-pill {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 6px 14px;
  background: var(--bg-glass);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border-soft);
  border-radius: 20px;
  font-size: 13px;
  color: var(--text-soft);
}
.trust-icon {
  color: var(--cyan-bright);
  font-weight: 700;
}

/* ==== Hero 右侧:实时数据看板(视觉爆点) ==== */
.hero-visual {
  position: relative;
  display: flex; flex-direction: column;
  gap: 16px;
}
.visual-board {
  background: linear-gradient(135deg, rgba(15, 37, 71, 0.85), rgba(10, 25, 41, 0.7));
  backdrop-filter: blur(20px);
  border: 1px solid var(--border-glow);
  border-radius: 20px;
  padding: 0;
  position: relative;
  overflow: hidden;
  box-shadow:
    0 20px 60px rgba(0, 212, 255, 0.15),
    0 0 0 1px rgba(0, 212, 255, 0.1) inset;
}
.visual-board::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan), var(--purple), transparent);
  opacity: .8;
}

.board-header {
  display: flex; align-items: center; gap: 8px;
  padding: 14px 20px;
  border-bottom: 1px solid var(--border-soft);
}
.board-dot {
  width: 10px; height: 10px;
  border-radius: 50%;
  background: rgba(255,255,255,.2);
}
.board-dot:nth-child(1) { background: #ff5f57; }
.board-dot:nth-child(2) { background: #febc2e; }
.board-dot:nth-child(3) { background: #28c840; }
.board-title {
  margin-left: 12px;
  font-size: 12px;
  color: var(--text-soft);
  font-family: 'JetBrains Mono', 'Courier New', monospace;
  letter-spacing: 1px;
}
/* ==== Hero 右侧:实时数据看板(视觉爆点) ==== */
.hero-visual {
  position: relative;
  display: flex; flex-direction: column;
  gap: 16px;
}
.visual-board {
  background: linear-gradient(135deg, rgba(15, 37, 71, 0.85), rgba(10, 25, 41, 0.7));
  backdrop-filter: blur(20px);
  border: 1px solid var(--border-glow);
  border-radius: 20px;
  padding: 0;
  position: relative;
  overflow: hidden;
  box-shadow:
    0 20px 60px rgba(0, 212, 255, 0.15),
    0 0 0 1px rgba(0, 212, 255, 0.1) inset;
}
.visual-board::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan), var(--purple), transparent);
  opacity: .8;
}

.board-header {
  display: flex; align-items: center; gap: 8px;
  padding: 14px 20px;
  border-bottom: 1px solid var(--border-soft);
}
.board-dot {
  width: 10px; height: 10px;
  border-radius: 50%;
  background: rgba(255,255,255,.2);
}
.board-dot:nth-child(1) { background: #ff5f57; }
.board-dot:nth-child(2) { background: #febc2e; }
.board-dot:nth-child(3) { background: #28c840; }
.board-title {
  margin-left: 12px;
  font-size: 12px;
  color: var(--text-soft);
  font-family: 'JetBrains Mono', 'Courier New', monospace;
  letter-spacing: 1px;
}
.board-status {
  margin-left: auto;
  font-size: 10px;
  color: var(--green);
  font-family: 'JetBrains Mono', monospace;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

/* KPI 行(紧凑 4 列) */
.board-kpis {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  padding: 16px;
  background: rgba(5, 11, 24, 0.4);
  border-bottom: 1px solid var(--border-soft);
}
.kpi-mini {
  padding: 12px 16px;
  background: rgba(15, 37, 71, 0.4);
  position: relative;
  transition: .3s;
}
.kpi-mini:hover { background: rgba(0, 212, 255, 0.08); }
.kpi-mini.highlight {
  background: linear-gradient(135deg, rgba(0, 212, 255, 0.1), rgba(99, 102, 241, 0.05));
}
.kpi-mini-label {
  font-size: 11px;
  color: var(--text-soft);
  margin-bottom: 6px;
}
.kpi-mini-value {
  font-size: 24px;
  font-weight: 800;
  color: #fff;
  line-height: 1;
  margin-bottom: 4px;
  font-variant-numeric: tabular-nums;
}
.kpi-mini.highlight .kpi-mini-value {
  background: var(--grad-primary);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.kpi-mini-trend {
  font-size: 10px;
  font-family: 'JetBrains Mono', monospace;
}
.kpi-mini-trend.up { color: var(--green); }

/* 中部三栏(图表 + 圆环 + 仪表盘) */
.board-panels {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1.3fr;
  gap: 1px;
  padding: 16px;
  background: rgba(5, 11, 24, 0.4);
}
.board-panel {
  background: rgba(15, 37, 71, 0.3);
  padding: 14px;
  border-radius: 8px;
}
.panel-title {
  font-size: 11px;
  color: var(--cyan-bright);
  font-family: 'JetBrains Mono', monospace;
  letter-spacing: 0.5px;
  margin-bottom: 12px;
  font-weight: 600;
}
.panel-chart {
  width: 100%;
  height: 70px;
  display: block;
}
.chart-pulse {
  animation: chart-pulse 2s ease-in-out infinite;
}
.chart-pulse-ring {
  animation: chart-pulse-ring 2s ease-in-out infinite;
  transform-origin: 200px 8px;
}
@keyframes chart-pulse {
  0%, 100% { opacity: 1; r: 3; }
  50% { opacity: .6; r: 4; }
}
@keyframes chart-pulse-ring {
  0% { opacity: 1; transform: scale(1); }
  100% { opacity: 0; transform: scale(2.5); }
}

/* 圆环图 */
.panel-donut {
  position: relative;
  width: 100px; height: 100px;
  margin: 0 auto 12px;
}
.panel-donut svg {
  width: 100%; height: 100%;
}
.donut-center {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
}
.donut-num {
  font-size: 22px;
  font-weight: 800;
  color: #fff;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}
.donut-label {
  font-size: 9px;
  color: var(--text-soft);
  margin-top: 2px;
}
.donut-legend {
  display: flex; flex-direction: column;
  gap: 4px;
  font-size: 11px;
  color: var(--text-soft);
}
.legend-dot {
  display: inline-block;
  width: 8px; height: 8px;
  border-radius: 50%;
  margin-right: 6px;
}

/* 仪表盘圆环 */
.panel-rings {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}
.ring {
  text-align: center;
  position: relative;
}
.ring svg {
  width: 50px; height: 50px;
  margin: 0 auto;
}
.ring-label {
  font-size: 10px;
  color: var(--text-soft);
  margin-top: 2px;
}
.ring-value {
  font-size: 13px;
  font-weight: 700;
  color: #fff;
  font-variant-numeric: tabular-nums;
  margin-top: 2px;
}

/* 任务列表 */
.board-tasks {
  border-top: 1px solid var(--border-soft);
  padding: 14px 16px 16px;
}
.tasks-header {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 10px;
}
.tasks-title {
  font-size: 11px;
  color: var(--cyan-bright);
  font-family: 'JetBrains Mono', monospace;
  font-weight: 600;
}
.tasks-time {
  font-size: 10px;
  color: var(--text-muted);
  font-family: 'JetBrains Mono', monospace;
}
.tasks-list {
  display: flex; flex-direction: column; gap: 6px;
}
.task-row {
  display: grid;
  grid-template-columns: 70px 1.5fr 1.2fr 60px;
  gap: 10px;
  align-items: center;
  padding: 6px 8px;
  background: rgba(15, 37, 71, 0.3);
  border-radius: 4px;
  font-size: 11px;
  transition: .2s;
}
.task-row:hover { background: rgba(0, 212, 255, 0.05); }
.task-status {
  font-size: 10px;
  font-family: 'JetBrains Mono', monospace;
  font-weight: 600;
}
.task-status.running { color: var(--cyan-bright); }
.task-status.done { color: var(--green); }
.task-name {
  color: #fff;
  font-weight: 500;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.task-agent {
  color: var(--text-soft);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.task-dur {
  color: var(--text-muted);
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  text-align: right;
}

/* 浮动统计徽章 */
.floating-stat {
  position: absolute;
  top: -20px; right: -20px;
  background: linear-gradient(135deg, rgba(15, 37, 71, 0.95), rgba(99, 102, 241, 0.3));
  backdrop-filter: blur(20px);
  border: 1px solid var(--border-glow);
  border-radius: 14px;
  padding: 16px 20px;
  min-width: 180px;
  box-shadow: 0 20px 40px rgba(0,0,0,.4);
  animation: float 4s ease-in-out infinite;
  z-index: 3;
}
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}
.floating-label {
  font-size: 12px;
  color: var(--text-soft);
  margin-bottom: 4px;
}
.floating-value {
  font-size: 32px;
  font-weight: 800;
  background: var(--grad-primary);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1;
  margin-bottom: 8px;
}
.floating-bar {
  height: 4px;
  background: rgba(0, 212, 255, 0.1);
  border-radius: 2px;
  overflow: hidden;
}
.floating-bar-fill {
  height: 100%;
  width: 78%;
  background: var(--grad-primary);
  border-radius: 2px;
  animation: bar-shine 2s ease-in-out infinite;
}
@keyframes bar-shine {
  0%, 100% { opacity: .8; }
  50% { opacity: 1; }
}

/* 响应式:看板 */
@media (max-width: 1024px) {
  .board-kpis { grid-template-columns: repeat(2, 1fr); }
  .board-panels { grid-template-columns: 1fr; }
  .floating-stat { position: relative; top: 0; right: 0; margin-top: 16px; }
}

/* ==== Logo 墙 ==== */
.logo-wall {
  padding: 50px 0;
  background: linear-gradient(180deg, transparent, rgba(0, 212, 255, 0.02));
  border-top: 1px solid var(--border-soft);
  border-bottom: 1px solid var(--border-soft);
}
.logo-wall-label {
  text-align: center;
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 28px;
  letter-spacing: 2px;
  text-transform: uppercase;
  font-weight: 600;
  display: flex; justify-content: center; align-items: center; gap: 12px;
}
.logo-wall-stat {
  display: inline-block;
  font-size: 32px;
  font-weight: 800;
  background: var(--grad-primary);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: 0;
  line-height: 1;
}
.logo-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 50px;
}
.logo-item {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-muted);
  letter-spacing: 1px;
  transition: .3s;
  position: relative;
  padding: 6px 0;
}
.logo-item:hover {
  color: var(--cyan-bright);
}

/* ==== Section 通用 ==== */
.section { padding: 100px 0; position: relative; }
.section-alt {
  background:
    radial-gradient(circle at 20% 50%, rgba(99, 102, 241, 0.08), transparent 50%),
    radial-gradient(circle at 80% 50%, rgba(0, 212, 255, 0.08), transparent 50%);
}
.section-dark {
  background: linear-gradient(180deg, rgba(10, 25, 41, 0.5), transparent);
}

.section-head {
  text-align: center;
  margin-bottom: 64px;
}
.section-tag {
  display: inline-block;
  font-size: 13px; color: var(--cyan-bright);
  margin-bottom: 12px;
  letter-spacing: 2px;
  text-transform: uppercase;
  font-weight: 600;
}
.section-tag::before { content: '◢ '; }
.section-title {
  font-size: 44px; font-weight: 800;
  margin-bottom: 16px; letter-spacing: -1px;
  line-height: 1.2;
  color: #fff;
}
.section-title .hl {
  background: var(--grad-primary);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.section-lead {
  font-size: 17px; color: var(--text-soft);
  max-width: 700px; margin: 0 auto;
}

.section-head-row {
  display: flex; justify-content: space-between; align-items: end;
  margin-bottom: 40px;
}
.section-head-row .section-title,
.section-head-row .section-tag,
.section-head-row .section-lead {
  text-align: left; margin: 0;
}
.link-more {
  color: var(--cyan-bright); font-size: 14px;
  font-weight: 500;
}
.link-more:hover { color: var(--purple-light); }

/* ==== Features (中间核心卡放大) ==== */
.features-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: stretch;
}
.feature-card {
  background: linear-gradient(135deg, rgba(15, 37, 71, 0.5), rgba(10, 25, 41, 0.3));
  backdrop-filter: blur(20px);
  padding: 40px 32px;
  border-radius: 16px;
  border: 1px solid var(--border-soft);
  position: relative;
  overflow: hidden;
  transition: .4s;
}
.feature-card::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
  opacity: 0; transition: .4s;
}
.feature-card::after {
  content: '';
  position: absolute; top: -50%; right: -50%;
  width: 200%; height: 200%;
  background: radial-gradient(circle, rgba(0, 212, 255, 0.1), transparent 50%);
  opacity: 0; transition: .4s;
}
.feature-card:hover {
  transform: translateY(-8px);
  border-color: var(--border-glow);
  box-shadow: 0 20px 60px rgba(0, 212, 255, 0.15);
}
.feature-card:hover::before { opacity: 1; }
.feature-card:hover::after { opacity: 1; }

/* 中间卡:明显放大 + 强发光 + 上移 + 浅紫底色 形成"主角" */
.feature-card.featured {
  border-color: var(--border-glow);
  background: linear-gradient(135deg, rgba(0, 212, 255, 0.12), rgba(99, 102, 241, 0.1));
  transform: scale(1.08) translateY(-10px);
  z-index: 2;
  box-shadow:
    0 40px 100px rgba(0, 212, 255, 0.35),
    0 0 0 1px var(--border-glow) inset,
    0 0 60px rgba(99, 102, 241, 0.2);
}
.feature-card.featured::before {
  background: linear-gradient(90deg, transparent, var(--cyan), var(--purple), transparent);
  opacity: 1;
  height: 2px;
}
.feature-card.featured::after {
  opacity: .5;
}
.feature-card.featured:hover { transform: scale(1.08) translateY(-16px); }
.feature-card.featured .feature-icon {
  background: linear-gradient(135deg, #00d4ff 0%, #6366f1 50%, #c026d3 100%);
  box-shadow: 0 12px 36px rgba(99, 102, 241, 0.5);
}

.featured-badge {
  position: absolute;
  top: 20px; right: 20px;
  padding: 4px 10px;
  background: var(--grad-primary);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  border-radius: 6px;
  letter-spacing: 1px;
  box-shadow: 0 4px 12px rgba(0, 212, 255, 0.3);
}

/* 图标统一为青→紫渐变 */
.feature-icon {
  width: 64px; height: 64px;
  background: var(--grad-primary);
  border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  font-size: 32px;
  margin-bottom: 24px;
  box-shadow: 0 10px 30px rgba(0, 212, 255, 0.3);
  position: relative;
  z-index: 1;
}
.feature-card h3 {
  font-size: 22px; margin-bottom: 12px;
  font-weight: 700;
}
.feature-card p {
  color: var(--text-soft); margin-bottom: 16px;
  font-size: 14px; line-height: 1.8;
}
.feature-card p strong {
  color: var(--cyan-bright);
  font-weight: 600;
}
.card-link {
  color: var(--cyan-bright);
  font-weight: 600; font-size: 14px;
  display: inline-flex; align-items: center; gap: 6px;
}
.card-link:hover { color: var(--purple-light); }
.card-link::after { content: '→'; transition: .3s; }
.card-link:hover::after { transform: translateX(4px); }

/* ==== Solution ==== */
.solution-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.solution-card {
  background: var(--bg-glass);
  backdrop-filter: blur(10px);
  padding: 24px;
  border-radius: 12px;
  border: 1px solid var(--border-soft);
  display: flex; align-items: center; gap: 16px;
  transition: .3s;
  position: relative;
  overflow: hidden;
}
.solution-card::before {
  content: '';
  position: absolute; left: 0; top: 0; bottom: 0;
  width: 3px; background: var(--grad-primary);
  transform: scaleY(0); transition: .3s;
  transform-origin: center;
}
.solution-card:hover {
  border-color: var(--border-glow);
  background: rgba(0, 212, 255, 0.05);
  transform: translateX(6px);
}
.solution-card:hover::before { transform: scaleY(1); }
.solution-icon {
  font-size: 28px; flex-shrink: 0;
  width: 48px; height: 48px;
  background: var(--cyan-soft);
  border: 1px solid rgba(0, 212, 255, 0.2);
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  transition: .3s;
}
.solution-card:hover .solution-icon {
  background: var(--grad-primary);
  box-shadow: 0 4px 16px rgba(0, 212, 255, 0.4);
}
.solution-card h4 { font-size: 16px; margin-bottom: 4px; }
.solution-card p { color: var(--text-soft); font-size: 13px; }

/* ==== Product ==== */
.product-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.product-card {
  background: linear-gradient(135deg, rgba(15, 37, 71, 0.6), rgba(10, 25, 41, 0.4));
  backdrop-filter: blur(20px);
  border: 1px solid var(--border-soft);
  border-radius: 16px;
  padding: 32px;
  transition: .4s;
  position: relative;
  overflow: hidden;
}
.product-card::after {
  content: '';
  position: absolute; top: 0; right: 0;
  width: 100px; height: 100px;
  background: radial-gradient(circle, rgba(0, 212, 255, 0.15), transparent 70%);
  border-radius: 50%;
  transform: translate(30%, -30%);
  transition: .4s;
}
.product-card:hover {
  border-color: var(--border-glow);
  transform: translateY(-6px);
  box-shadow: 0 20px 60px rgba(0, 212, 255, 0.15);
}
.product-card:hover::after {
  transform: translate(20%, -20%) scale(1.5);
}
.product-thumb {
  width: 60px; height: 60px;
  background: var(--grad-primary);
  border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  font-size: 28px;
  margin-bottom: 20px;
  position: relative; z-index: 1;
  box-shadow: 0 8px 24px rgba(0, 212, 255, 0.3);
}
.product-preview {
  margin-top: 16px;
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid var(--border-soft);
  background: rgba(5, 11, 24, 0.4);
  position: relative;
}
.product-preview img {
  width: 100%;
  height: auto;
  display: block;
  transition: .4s;
}
.product-card:hover .product-preview img {
  transform: scale(1.03);
}
.product-card h4 { font-size: 19px; margin-bottom: 10px; font-weight: 700; }
.product-card p { color: var(--text-soft); font-size: 14px; line-height: 1.7; }
.product-tag {
  display: inline-block;
  margin-top: 16px;
  padding: 4px 10px;
  background: var(--cyan-soft);
  color: var(--cyan-bright);
  border: 1px solid rgba(0, 212, 255, 0.2);
  border-radius: 6px;
  font-size: 12px;
  font-weight: 600;
}

/* 主推产品卡:放大 + 强发光 */
.product-card.featured-product {
  background: linear-gradient(135deg, rgba(0, 212, 255, 0.1), rgba(99, 102, 241, 0.08));
  border-color: var(--border-glow);
  transform: scale(1.05) translateY(-8px);
  box-shadow: 0 30px 80px rgba(0, 212, 255, 0.25);
}
.product-card.featured-product::after { opacity: 1; }
.product-card.featured-product:hover { transform: scale(1.05) translateY(-14px); }
.product-badge {
  position: absolute;
  top: 16px; right: 16px;
  padding: 3px 10px;
  background: var(--grad-primary);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  border-radius: 5px;
  letter-spacing: 1px;
  box-shadow: 0 4px 12px rgba(0, 212, 255, 0.3);
  z-index: 2;
}

/* ==== News ==== */
.news-row {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 48px;
}
.news-col { }
.news-list { list-style: none; }
.news-item {
  display: flex; gap: 20px;
  padding: 20px 0;
  border-bottom: 1px solid var(--border-soft);
  transition: .3s;
  position: relative;
}
.news-item::before {
  content: ''; position: absolute;
  left: -20px; top: 50%;
  width: 6px; height: 6px;
  background: var(--cyan);
  border-radius: 50%;
  transform: translateY(-50%);
  opacity: 0; transition: .3s;
  box-shadow: 0 0 8px var(--cyan);
}
.news-item:hover { padding-left: 16px; }
.news-item:hover::before { opacity: 1; left: -8px; }
.news-time {
  flex-shrink: 0;
  font-size: 13px; color: var(--cyan-bright);
  font-variant-numeric: tabular-nums;
  font-weight: 600;
  width: 60px;
  padding-top: 2px;
}
.news-content {
  flex: 1;
}
.news-content a {
  display: block;
  font-size: 15px; color: var(--text);
  margin-bottom: 4px;
  font-weight: 500;
}
.news-content a:hover { color: var(--cyan-bright); }
.news-cat {
  font-size: 12px; color: var(--text-muted);
}

/* ==== Case ==== */
.case-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.case-card {
  background: linear-gradient(135deg, rgba(15, 37, 71, 0.6), rgba(10, 25, 41, 0.4));
  backdrop-filter: blur(20px);
  border: 1px solid var(--border-soft);
  border-radius: 16px;
  padding: 32px;
  position: relative;
  overflow: hidden;
  transition: .4s;
}
.case-card::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: var(--grad-primary);
  transform: scaleX(0); transform-origin: left;
  transition: .4s;
}
.case-card:hover { transform: translateY(-6px); border-color: var(--border-glow); }
.case-card:hover::before { transform: scaleX(1); }

/* 案例数据用青→紫渐变,统一品牌色 */
.case-stat {
  font-size: 48px; font-weight: 800;
  background: var(--grad-primary);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1;
  margin-bottom: 16px;
  letter-spacing: -1px;
  font-variant-numeric: tabular-nums;
}
.case-card h4 { font-size: 17px; margin-bottom: 10px; }
.case-card p { color: var(--text-soft); font-size: 14px; margin-bottom: 12px; }
.case-meta {
  display: inline-block;
  padding: 4px 10px;
  background: var(--cyan-soft);
  border: 1px solid rgba(0, 212, 255, 0.2);
  border-radius: 6px;
  font-size: 12px;
  color: var(--cyan-bright);
}

/* ==== Trust ==== */
.trust-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.trust-item {
  background: var(--bg-glass);
  backdrop-filter: blur(10px);
  padding: 20px;
  border-radius: 10px;
  border: 1px solid var(--border-soft);
  text-align: center;
  font-size: 15px;
  transition: .3s;
  position: relative;
}
.trust-item:hover {
  border-color: var(--border-glow);
  background: rgba(0, 212, 255, 0.05);
  transform: translateY(-2px);
}

/* ==== CTA Bar ==== */
.cta-bar {
  padding: 80px 0;
  position: relative;
  overflow: hidden;
}
.cta-bar::before {
  content: '';
  position: absolute; inset: 0;
  background: var(--grad-primary);
  z-index: -1;
}
.cta-bar::after {
  content: '';
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px);
  background-size: 30px 30px;
  z-index: -1;
}
.cta-inner {
  display: flex; justify-content: space-between; align-items: center;
  gap: 40px;
}
.cta-inner h3 {
  font-size: 32px; margin-bottom: 8px;
  font-weight: 800;
}
.cta-inner p { font-size: 16px; opacity: .9; }
.cta-bar .btn-primary {
  background: #fff;
  color: var(--bg-deep);
  box-shadow: 0 10px 30px rgba(0,0,0,.2);
}
.cta-bar .btn-primary::before { display: none; }
.cta-bar .btn-primary:hover {
  background: var(--bg-deep);
  color: #fff;
  box-shadow: 0 15px 40px rgba(0,0,0,.3);
}

/* ==== Footer ==== */
.site-footer {
  background: linear-gradient(180deg, transparent, rgba(5, 11, 24, 0.8));
  border-top: 1px solid var(--border-soft);
  padding: 60px 0 24px;
  position: relative;
}
.footer-grid {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 40px;
  margin-bottom: 40px;
}
.site-footer h5 {
  color: #fff;
  margin-bottom: 16px;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 1px;
}
.site-footer p { color: var(--text-soft); font-size: 14px; line-height: 1.8; }
.site-footer ul { list-style: none; }
.site-footer ul li {
  padding: 5px 0;
  font-size: 14px;
  color: var(--text-soft);
}
.site-footer ul li a:hover { color: var(--cyan-bright); }
.contact-list li { display: flex; gap: 10px; align-items: center; }
.footer-bottom {
  border-top: 1px solid var(--border-soft);
  padding-top: 24px;
  text-align: center;
  font-size: 13px;
  color: var(--text-muted);
}

/* ==== 内页通用 ==== */
.page-hero {
  padding: 160px 0 80px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.page-hero::before {
  content: '';
  position: absolute; top: 0; left: 50%;
  width: 800px; height: 800px;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.2), transparent 60%);
  transform: translateX(-50%) translateY(-50%);
  filter: blur(40px);
  z-index: 0;
}
.page-hero .container { position: relative; z-index: 1; }
.page-hero h1 {
  font-size: 48px;
  margin-bottom: 16px;
  font-weight: 800;
  letter-spacing: -1px;
  color: #fff;
}
.page-hero h1 .hl {
  background: var(--grad-primary);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.page-hero .lead {
  font-size: 18px;
  color: var(--text-soft);
  max-width: 700px; margin: 0 auto;
}

.breadcrumb {
  padding: 20px 0;
  font-size: 14px;
  color: var(--text-soft);
  display: flex; gap: 8px; align-items: center;
}
.breadcrumb a { color: var(--cyan-bright); }
.breadcrumb a:hover { color: var(--purple-light); }
.breadcrumb span { color: var(--text-muted); }

/* ==== 文章列表 ==== */
.article-list {
  display: grid; gap: 16px;
}
.article-item {
  background: linear-gradient(135deg, rgba(15, 37, 71, 0.5), rgba(10, 25, 41, 0.3));
  backdrop-filter: blur(20px);
  border: 1px solid var(--border-soft);
  border-radius: 12px;
  padding: 28px;
  transition: .3s;
  position: relative;
  overflow: hidden;
}
.article-item::before {
  content: '';
  position: absolute; left: 0; top: 0; bottom: 0;
  width: 3px;
  background: var(--grad-primary);
  transform: scaleY(0); transition: .3s;
  transform-origin: center;
}
.article-item:hover {
  border-color: var(--border-glow);
  transform: translateX(4px);
  background: linear-gradient(135deg, rgba(15, 37, 71, 0.7), rgba(0, 212, 255, 0.05));
}
.article-item:hover::before { transform: scaleY(1); }
.article-item h3 {
  font-size: 19px;
  margin-bottom: 10px;
  font-weight: 700;
}
.article-item h3 a:hover { color: var(--cyan-bright); }
.article-meta {
  color: var(--text-soft);
  font-size: 13px;
  margin-bottom: 10px;
  display: flex; gap: 14px; align-items: center;
}
.article-meta time { color: var(--cyan-bright); font-weight: 600; }
.article-summary {
  color: var(--text-soft);
  font-size: 14px; line-height: 1.8;
}

/* ==== 文章详情 ==== */
.article-full {
  background: linear-gradient(135deg, rgba(15, 37, 71, 0.5), rgba(10, 25, 41, 0.3));
  backdrop-filter: blur(20px);
  border: 1px solid var(--border-soft);
  border-radius: 16px;
  padding: 50px;
  margin-bottom: 40px;
  position: relative;
}
.article-full::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
}
.article-full h1 {
  font-size: 36px;
  margin-bottom: 20px;
  line-height: 1.3;
  font-weight: 800;
  letter-spacing: -0.5px;
  color: #fff;
}
.article-full .article-meta {
  border-bottom: 1px solid var(--border-soft);
  padding-bottom: 20px;
  margin-bottom: 32px;
}
.article-body h2 {
  font-size: 24px;
  margin: 36px 0 16px;
  padding-left: 16px;
  border-left: 3px solid var(--cyan);
  font-weight: 700;
  color: #fff;
}
.article-body h3 {
  font-size: 19px;
  margin: 28px 0 12px;
  color: var(--cyan-bright);
  font-weight: 700;
}
.article-body p {
  margin-bottom: 18px;
  line-height: 1.9;
  color: var(--text);
}
.article-body ul, .article-body ol {
  margin: 16px 0 16px 30px;
  color: var(--text);
}
.article-body li {
  margin-bottom: 10px;
  line-height: 1.8;
}
.article-body blockquote {
  background: linear-gradient(135deg, rgba(0, 212, 255, 0.08), rgba(99, 102, 241, 0.05));
  border-left: 3px solid var(--cyan);
  padding: 20px 24px;
  margin: 24px 0;
  color: var(--text-soft);
  border-radius: 0 8px 8px 0;
}
.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 20px 0;
  background: rgba(5, 11, 24, 0.3);
  border-radius: 8px;
  overflow: hidden;
}
.article-body th, .article-body td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border-soft);
}
.article-body th {
  background: rgba(0, 212, 255, 0.1);
  color: var(--cyan-bright);
  font-weight: 600;
}
.article-body pre {
  background: rgba(5, 11, 24, 0.8);
  border: 1px solid var(--border-soft);
  padding: 16px;
  border-radius: 8px;
  overflow-x: auto;
  font-size: 13px;
  margin: 16px 0;
}

/* 产品截图样式 */
.article-body .product-screenshot {
  margin: 20px 0 32px;
  border-radius: 12px;
  overflow: hidden;
  background: linear-gradient(135deg, rgba(15, 37, 71, 0.4), rgba(10, 25, 41, 0.2));
  border: 1px solid var(--border-glow);
  box-shadow: 0 20px 50px rgba(0,0,0,.4);
}
.article-body .product-screenshot img {
  width: 100%;
  height: auto;
  display: block;
}
.article-body .product-screenshot figcaption {
  padding: 14px 20px;
  background: rgba(5, 11, 24, 0.6);
  font-size: 13px;
  color: var(--text-soft);
  text-align: center;
  border-top: 1px solid var(--border-soft);
}

/* ==== 联系我们 ==== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}
.contact-info, .contact-form {
  background: linear-gradient(135deg, rgba(15, 37, 71, 0.5), rgba(10, 25, 41, 0.3));
  backdrop-filter: blur(20px);
  border: 1px solid var(--border-soft);
  border-radius: 16px;
  padding: 40px;
}
.contact-info h3, .contact-form h3 {
  margin-bottom: 24px;
  font-size: 22px;
  font-weight: 700;
}
.contact-info ul { list-style: none; }
.contact-info li {
  padding: 14px 0;
  border-bottom: 1px solid var(--border-soft);
  display: flex; gap: 14px;
  font-size: 14px;
}
.contact-info li:last-child { border: none; }
.contact-info li b { color: var(--cyan-bright); margin-right: 8px; }

.contact-form input,
.contact-form select,
.contact-form textarea {
  width: 100%;
  padding: 14px 18px;
  margin-bottom: 16px;
  background: rgba(5, 11, 24, 0.5);
  border: 1px solid var(--border-soft);
  border-radius: 8px;
  font-family: inherit;
  font-size: 14px;
  color: var(--text);
  transition: .3s;
}
.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--cyan);
  background: rgba(0, 212, 255, 0.05);
}
.contact-form textarea { min-height: 120px; resize: vertical; }
.contact-form option { background: var(--bg-dark); }

/* ==== 案例展示卡片(企业相册/荣誉) ==== */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.gallery-card {
  background: linear-gradient(135deg, rgba(15, 37, 71, 0.6), rgba(10, 25, 41, 0.4));
  backdrop-filter: blur(20px);
  border: 1px solid var(--border-soft);
  border-radius: 16px;
  overflow: hidden;
  transition: .4s;
}
.gallery-card:hover {
  border-color: var(--border-glow);
  transform: translateY(-6px);
  box-shadow: 0 20px 50px rgba(0, 212, 255, 0.15);
}
.gallery-card .thumb {
  height: 200px;
  position: relative;
  overflow: hidden;
}
.gallery-card .thumb .icon-wrap {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  font-size: 64px;
  transition: .4s;
}
.gallery-card:hover .icon-wrap { transform: scale(1.1); }
.gallery-card .thumb::after {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 60%, rgba(5, 11, 24, 0.4));
}
.gallery-card .info {
  padding: 20px 24px;
}
.gallery-card .info h4 {
  font-size: 16px;
  margin-bottom: 6px;
  font-weight: 700;
}
.gallery-card .info p {
  font-size: 13px;
  color: var(--text-soft);
}

/* ==== 响应式 ==== */
@media (max-width: 1024px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-visual { margin-top: 40px; }
  .features-grid, .product-grid, .case-grid, .trust-grid { grid-template-columns: repeat(2, 1fr); }
  .feature-card.featured { transform: none; }
  .feature-card.featured:hover { transform: translateY(-8px); }
  .hero-title { font-size: 42px; }
  .floating-stat { position: relative; top: 0; right: 0; margin-top: 16px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .main-nav { display: none; }
  .hero { padding: 120px 0 60px; min-height: auto; }
  .hero-title { font-size: 32px; }
  .section-title { font-size: 32px; }
  .page-hero h1 { font-size: 32px; }
  .features-grid, .solution-grid, .product-grid, .case-grid, .trust-grid, .gallery-grid {
    grid-template-columns: 1fr;
  }
  .board-grid { grid-template-columns: 1fr; }
  .news-row, .contact-grid { grid-template-columns: 1fr; gap: 32px; }
  .logo-list { gap: 30px; }
  .footer-grid { grid-template-columns: 1fr; }
  .cta-inner { flex-direction: column; text-align: center; }
  .article-full { padding: 28px; }
}

/* ==== 动效 ==== */
.fade-in { animation: fadeIn 1s ease-out; }
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ==== 滚动条美化 ==== */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--bg-deep); }
::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--cyan), var(--purple));
  border-radius: 5px;
}
::-webkit-scrollbar-thumb:hover { background: var(--cyan-bright); }

/* ==== 选中文字 ==== */
::selection { background: var(--cyan); color: var(--bg-deep); }
/* === 微信二维码联系模块 === */
.wechat-contact-section {
  padding: 80px 0;
  background: linear-gradient(135deg, rgba(0,212,255,0.05), rgba(99,102,241,0.08));
  border-top: 1px solid var(--border-soft);
  border-bottom: 1px solid var(--border-soft);
  position: relative;
  overflow: hidden;
}
.wechat-contact-section::before {
  content: '';
  position: absolute; top: 0; left: 50%;
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(0,212,255,0.1), transparent 60%);
  transform: translateX(-50%) translateY(-50%);
  pointer-events: none;
}
.wechat-contact-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 60px;
  align-items: center;
  position: relative;
  z-index: 1;
}
.wechat-contact-info h2 {
  font-size: 32px;
  color: #fff;
  margin-bottom: 12px;
  font-weight: 800;
}
.wechat-contact-lead {
  color: var(--text-soft);
  font-size: 16px;
  margin-bottom: 32px;
  line-height: 1.7;
}
.wechat-contact-lead strong {
  color: var(--cyan-bright);
}
.wechat-contact-items {
  display: flex;
  flex-direction: column;
  gap: 18px;
  margin-bottom: 28px;
}
.wechat-contact-item {
  display: flex; gap: 16px; align-items: center;
  background: rgba(15, 37, 71, 0.5);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border-soft);
  border-radius: 10px;
  padding: 14px 18px;
  transition: .2s;
}
.wechat-contact-item:hover {
  border-color: var(--border-glow);
  background: rgba(0, 212, 255, 0.05);
}
.wechat-contact-icon {
  width: 40px; height: 40px;
  background: var(--grad-primary);
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-size: 20px;
  flex-shrink: 0;
}
.wechat-contact-label {
  font-size: 12px;
  color: var(--text-soft);
  margin-bottom: 2px;
}
.wechat-contact-value {
  font-size: 18px;
  font-weight: 700;
  color: #fff;
  font-variant-numeric: tabular-nums;
}
.wechat-contact-call {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 14px 28px;
  background: var(--grad-primary);
  color: #fff;
  border-radius: 10px;
  font-weight: 700;
  font-size: 16px;
  box-shadow: 0 10px 30px rgba(0,212,255,0.3);
  transition: .3s;
}
.wechat-contact-call:hover {
  transform: translateY(-2px);
  box-shadow: 0 15px 40px rgba(0,212,255,0.5);
}
.wechat-contact-qr {
  text-align: center;
}
.wechat-qr-frame {
  display: inline-block;
  background: #fff;
  padding: 20px;
  border-radius: 16px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
  position: relative;
  margin-bottom: 16px;
}
.wechat-qr-frame::before {
  content: '';
  position: absolute; inset: -4px;
  background: var(--grad-primary);
  border-radius: 20px;
  z-index: -1;
  filter: blur(20px);
  opacity: 0.5;
}
.wechat-qr-frame img {
  width: 180px;
  height: 180px;
  display: block;
}
.wechat-qr-caption {
  color: var(--text-soft);
  font-size: 14px;
  line-height: 1.7;
}
.wechat-qr-caption strong {
  color: var(--cyan-bright);
  font-size: 15px;
}

/* === 悬浮微信按钮 === */
.float-wechat-btn {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 999;
  background: var(--grad-primary);
  color: #fff;
  border-radius: 50px;
  padding: 12px 20px 12px 14px;
  display: flex; align-items: center; gap: 8px;
  cursor: pointer;
  box-shadow: 0 10px 30px rgba(0, 212, 255, 0.4);
  transition: .3s;
  user-select: none;
  border: 2px solid rgba(255, 255, 255, 0.1);
}
.float-wechat-btn:hover {
  transform: scale(1.05);
  box-shadow: 0 15px 40px rgba(0, 212, 255, 0.6);
}
.float-wechat-icon {
  font-size: 24px;
  animation: float-wechat-pulse 2s ease-in-out infinite;
}
@keyframes float-wechat-pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.1); }
}
.float-wechat-text {
  font-weight: 700;
  font-size: 14px;
  white-space: nowrap;
}

/* === 微信弹窗 === */
.wechat-modal-overlay {
  position: fixed; inset: 0;
  background: rgba(0, 0, 0, 0.7);
  z-index: 9999;
  display: flex; align-items: center; justify-content: center;
  opacity: 0; pointer-events: none;
  transition: opacity .3s;
  backdrop-filter: blur(8px);
}
.wechat-modal-overlay.open {
  opacity: 1;
  pointer-events: auto;
}
.wechat-modal {
  background: linear-gradient(135deg, #0a1929, #0f2547);
  border: 1px solid var(--border-glow);
  border-radius: 20px;
  padding: 36px 40px 30px;
  max-width: 360px;
  width: 90%;
  text-align: center;
  position: relative;
  transform: scale(0.9);
  transition: transform .3s;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.6);
}
.wechat-modal-overlay.open .wechat-modal {
  transform: scale(1);
}
.wechat-modal-close {
  position: absolute;
  top: 12px; right: 16px;
  width: 28px; height: 28px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.05);
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  color: var(--text-soft);
  font-size: 16px;
  transition: .2s;
}
.wechat-modal-close:hover {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
}
.wechat-modal h3 {
  color: #fff;
  font-size: 22px;
  margin-bottom: 18px;
  font-weight: 700;
}
.wechat-modal-qr {
  display: inline-block;
  background: #fff;
  padding: 14px;
  border-radius: 12px;
  margin-bottom: 16px;
  box-shadow: 0 10px 30px rgba(0, 212, 255, 0.3);
}
.wechat-modal-qr img {
  width: 160px;
  height: 160px;
  display: block;
}
.wechat-modal p {
  color: var(--text-soft);
  font-size: 14px;
  line-height: 1.7;
  margin-bottom: 14px;
}
.wechat-modal p strong {
  color: var(--cyan-bright);
}
.wechat-modal-phone {
  display: inline-block;
  padding: 10px 24px;
  background: var(--grad-primary);
  color: #fff;
  border-radius: 8px;
  font-weight: 700;
  font-size: 16px;
  letter-spacing: 1px;
}

/* 响应式 */
@media (max-width: 1024px) {
  .wechat-contact-grid { grid-template-columns: 1fr; gap: 40px; }
  .wechat-qr-frame img { width: 180px; height: 180px; }
  .float-wechat-text { display: none; }
  .float-wechat-btn { padding: 14px; border-radius: 50%; }
}


/* 汉堡菜单按钮 (移动端) */
.mobile-menu-btn {
  display: none;
  width: 36px;
  height: 36px;
  background: var(--grad-primary);
  border-radius: 8px;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  border: none;
  position: relative;
  z-index: 1001;
  flex-shrink: 0;
  padding: 0;
}
.mobile-menu-btn span {
  display: block;
  width: 18px;
  height: 2px;
  background: #fff;
  position: relative;
  transition: all 0.3s;
}
.mobile-menu-btn span::before,
.mobile-menu-btn span::after {
  content: '';
  position: absolute;
  width: 18px;
  height: 2px;
  background: #fff;
  left: 0;
  transition: all 0.3s;
}
.mobile-menu-btn span::before { top: -6px; }
.mobile-menu-btn span::after { top: 6px; }
.mobile-menu-btn.active span { background: transparent; }
.mobile-menu-btn.active span::before { top: 0; transform: rotate(45deg); }
.mobile-menu-btn.active span::after { top: 0; transform: rotate(-45deg); }

/* 移动端菜单抽屉 */
.mobile-menu {
  display: none;
  position: fixed;
  top: 0;
  right: -100%;
  width: 280px;
  max-width: 80vw;
  height: 100vh;
  background: rgba(10, 25, 41, 0.98);
  backdrop-filter: blur(20px);
  z-index: 1000;
  padding: 80px 24px 24px;
  transition: right 0.3s ease;
  border-left: 1px solid var(--border-soft);
  overflow-y: auto;
}
.mobile-menu.active { right: 0; }
.mobile-menu a {
  display: block;
  padding: 14px 16px;
  color: var(--text);
  text-decoration: none;
  font-size: 16px;
  border-radius: 8px;
  margin-bottom: 4px;
  transition: all 0.2s;
}
.mobile-menu a:hover, .mobile-menu a.active {
  background: var(--grad-primary);
  color: #fff;
}
.mobile-menu-overlay {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.6);
  z-index: 999;
}
.mobile-menu-overlay.active { display: block; }

/* 移动端响应式 - 显示汉堡菜单 */
@media (max-width: 768px) {
  .main-nav { display: none; }
  .mobile-menu-btn { display: flex; }
}

/* === 移动端响应式优化 (基础版) === */
@media (max-width: 768px) {
  .container { padding: 0 16px; }
  h1 { font-size: 32px !important; }
  h2 { font-size: 24px !important; }
  h3 { font-size: 18px !important; }
  .hero { padding: 80px 0 40px; }
  .page-hero { padding: 60px 0 30px; }
  .page-hero h1 { font-size: 28px !important; }
  .section { padding: 60px 0; }
  .section-title { font-size: 28px !important; }
  .section-lead { font-size: 15px; }
  .hero-cta-row { flex-direction: column; gap: 12px; }
  .hero-cta-row a { width: 100%; text-align: center; }
  .summary-grid { grid-template-columns: 1fr !important; }
  .products-grid { grid-template-columns: 1fr !important; }
  .articles-grid { grid-template-columns: 1fr !important; }
  .cases-grid { grid-template-columns: 1fr !important; }
  .capability-grid { grid-template-columns: 1fr !important; }
  .industry-grid { grid-template-columns: 1fr !important; }
  .hero-cta-row a { padding: 14px 20px; font-size: 15px; }
  .breadcrumb { font-size: 13px; }
  .page-hero p.lead { font-size: 14px; }
  .footer-grid { grid-template-columns: 1fr !important; gap: 24px; }
  .kpi-mini { padding: 16px; }
  .kpi-mini-value { font-size: 22px; }
  .industry-card { padding: 20px; }
  .product-card { padding: 20px; }
  .article-item { padding: 20px; }
  .case-card { padding: 20px; }
  .capability-card { padding: 24px; }
  .site-footer { padding: 32px 0 16px; }
  .site-footer h5 { margin-bottom: 12px; }
  .page-hero { text-align: center; }
  .nav-bar { gap: 12px; }
  .logo-text small { font-size: 11px; }
  .logo-text { font-size: 15px; }
  .hero-inner { text-align: center; }
  .hero-inner p { font-size: 15px; }
  .hero-inner .hero-cta-row { margin-top: 24px; }
  .page-hero h1 br { display: inline; }
  .article-item h3 { font-size: 16px; }
  .article-item h3 a { line-height: 1.5; }
  .section-head { text-align: center; margin-bottom: 32px; }
  .hero-sub { font-size: 13px; }
  .hero-inner { padding: 0 16px; }
}

@media (max-width: 480px) {
  h1 { font-size: 26px !important; }
  h2 { font-size: 22px !important; }
  .hero-inner h1 { font-size: 26px !important; }
  .hero-cta-row a { font-size: 14px; padding: 12px 16px; }
  .summary-card { padding: 16px; }
  .summary-card h4 { font-size: 14px; }
}