/* ========================================
   重庆长毛象科技有限公司 - 苹果风格官网
   浅色系 · 高科技 · 极简设计
   ======================================== */

/* CSS变量 - 浅色主题（默认） */
:root {
  /* 主色调 */
  --primary: #0071e3;
  --primary-hover: #0077ed;
  --primary-dark: #0051a2;

  /* 文字颜色 */
  --text-primary: #1d1d1f;
  --text-secondary: #86868b;
  --text-tertiary: #6e6e73;

  /* 背景色 */
  --bg-primary: #ffffff;
  --bg-secondary: #f5f5f7;
  --bg-tertiary: #fafafa;

  /* 边框和分割 */
  --border: rgba(0, 0, 0, 0.08);
  --border-light: rgba(0, 0, 0, 0.04);

  /* 渐变 */
  --gradient-blue: linear-gradient(135deg, #0071e3 0%, #42a5f5 100%);
  --gradient-text: linear-gradient(
    135deg,
    #1d1d1f 0%,
    #434344 50%,
    #1d1d1f 100%
  );
  --gradient-hero: linear-gradient(180deg, #f5f5f7 0%, #ffffff 100%);

  /* 阴影 */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.12);
  --shadow-card: 0 20px 60px rgba(0, 0, 0, 0.1);

  /* 动画 */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --duration-fast: 0.2s;
  --duration-normal: 0.4s;
  --duration-slow: 0.8s;

  /* 尺寸 */
  --nav-height: 64px;
  --max-width: 1024px;
  --section-padding: 160px;
}

/* 深色主题 */
[data-theme="dark"] {
  /* 主色调 */
  --primary: #00d4ff;
  --primary-hover: #33ddff;
  --primary-dark: #00a8cc;

  /* 文字颜色 */
  --text-primary: #ffffff;
  --text-secondary: #a0aec0;
  --text-tertiary: #64748b;

  /* 背景色 */
  --bg-primary: #0a0f1a;
  --bg-secondary: #0a1628;
  --bg-tertiary: #0f172a;

  /* 边框和分割 */
  --border: rgba(0, 212, 255, 0.15);
  --border-light: rgba(0, 212, 255, 0.08);

  /* 渐变 */
  --gradient-blue: linear-gradient(135deg, #00d4ff 0%, #00ff88 100%);
  --gradient-text: linear-gradient(
    135deg,
    #ffffff 0%,
    #a0aec0 50%,
    #ffffff 100%
  );
  --gradient-hero: linear-gradient(180deg, #0a1628 0%, #0a0f1a 100%);

  /* 阴影 */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.5);
  --shadow-card: 0 20px 60px rgba(0, 0, 0, 0.6);
}

/* 重置 */
*,
*::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:
    "Inter",
    "Noto Sans SC",
    -apple-system,
    BlinkMacSystemFont,
    sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.5;
  overflow-x: hidden;
}

/* 选择文本颜色 */
::selection {
  background: rgba(0, 113, 227, 0.2);
  color: var(--text-primary);
}

/* ========================================
   导航栏 - 毛玻璃效果
   ======================================== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  z-index: 9999;
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--border-light);
  transition: background var(--duration-fast) ease;
}

.nav-container {
  max-width: var(--max-width);
  height: 100%;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--text-primary);
  font-weight: 600;
  font-size: 18px;
  transition: opacity var(--duration-fast);
}

.nav-logo:hover {
  opacity: 0.8;
}

.nav-logo svg {
  color: var(--primary);
}

.nav-logo-img {
  width: 36px;
  height: 36px;
  object-fit: contain;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 48px;
}

.nav-link {
  text-decoration: none;
  color: var(--text-primary);
  font-size: 16px;
  font-weight: 500;
  opacity: 0.8;
  transition:
    opacity var(--duration-fast),
    color var(--duration-fast);
  position: relative;
  padding: 8px 0;
}

.nav-link.active {
  opacity: 1;
  color: var(--primary);
  font-weight: 600;
}

.nav-link.active::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--primary);
  border-radius: 1px;
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--primary);
  transition: width var(--duration-fast);
}

.nav-link:hover {
  opacity: 1;
}

.nav-link:hover::after {
  width: 100%;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.nav-cta {
  padding: 8px 16px;
  background: var(--primary);
  color: white;
  text-decoration: none;
  font-size: 13px;
  font-weight: 500;
  border-radius: 980px;
  transition: all var(--duration-fast);
}

.nav-cta:hover {
  background: var(--primary-hover);
  transform: scale(1.02);
}

/* 主题切换按钮 */
.theme-toggle {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--bg-primary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  transition: all var(--duration-fast);
  overflow: hidden;
}

.theme-toggle:hover {
  border-color: var(--primary);
  transform: scale(1.05);
}

.theme-icon {
  position: absolute;
  font-size: 18px;
  transition: all var(--duration-normal) var(--ease-spring);
}

.theme-icon.light {
  opacity: 1;
  transform: translateY(0) rotate(0);
}

.theme-icon.dark {
  opacity: 0;
  transform: translateY(20px) rotate(90deg);
}

/* 深色主题时的图标切换 */
[data-theme="dark"] .theme-icon.light {
  opacity: 0;
  transform: translateY(-20px) rotate(-90deg);
}

[data-theme="dark"] .theme-icon.dark {
  opacity: 1;
  transform: translateY(0) rotate(0);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.nav-toggle span {
  width: 18px;
  height: 1.5px;
  background: var(--text-primary);
  transition: all var(--duration-fast);
  border-radius: 1px;
}

/* ========================================
   Hero Section V2 - 中国移动风格
   ======================================== */
.hero-v2 {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: 1fr auto;
  gap: 40px;
  padding: calc(var(--nav-height) + 60px) 60px 40px;
  background: var(--gradient-hero);
  position: relative;
  overflow: hidden;
}

.hero-v2::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 60%;
  height: 100%;
  background: linear-gradient(
    180deg,
    rgba(0, 113, 227, 0.03) 0%,
    rgba(0, 113, 227, 0.06) 100%
  );
  clip-path: polygon(30% 0, 100% 0, 100% 100%, 0% 100%);
}

/* 左侧内容区 */
.hero-left {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  z-index: 2;
  padding-left: 100px;
  padding-right: 40px;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  width: fit-content;
  padding: 8px 16px;
  background: rgba(0, 113, 227, 0.1);
  border: 1px solid rgba(0, 113, 227, 0.2);
  border-radius: 100px;
  font-size: 14px;
  font-weight: 500;
  color: var(--primary);
  margin-bottom: 24px;
}

.tag-icon {
  font-size: 16px;
}

.hero-title-v2 {
  margin-bottom: 24px;
}

.title-main {
  display: block;
  font-size: clamp(48px, 6vw, 72px);
  font-weight: 800;
  line-height: 1.1;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

.title-sub {
  display: block;
  font-size: clamp(48px, 6vw, 72px);
  font-weight: 800;
  line-height: 1.1;
  background: linear-gradient(135deg, #0071e3 0%, #00c853 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.02em;
}

.hero-desc-v2 {
  font-size: 18px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 32px;
  max-width: 480px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  margin-bottom: 48px;
}

.btn-outline {
  padding: 14px 28px;
  background: transparent;
  color: var(--primary);
  border: 2px solid var(--primary);
  border-radius: 8px;
  font-size: 16px;
  font-weight: 500;
  text-decoration: none;
  transition: all var(--duration-fast);
}

.btn-outline:hover {
  background: var(--primary);
  color: white;
}

.btn-large {
  padding: 16px 32px;
  font-size: 16px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.btn-large svg {
  transition: transform var(--duration-fast);
}

.btn-large:hover svg {
  transform: translateX(4px);
}

/* 核心指标 */
.hero-metrics {
  display: flex;
  gap: 40px;
}

.metric-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.metric-value {
  font-size: 32px;
  font-weight: 700;
  color: var(--primary);
  line-height: 1;
}

.metric-label {
  font-size: 14px;
  color: var(--text-secondary);
}

/* 右侧视觉区 */
.hero-right {
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2;
  position: relative;
}

.hero-image-wrapper {
  position: relative;
  width: 100%;
  max-width: 560px;
  aspect-ratio: 1;
}

.hero-image-main {
  width: 100%;
  height: 100%;
  background: white;
  border-radius: 24px;
  box-shadow:
    0 4px 6px -1px rgba(0, 0, 0, 0.1),
    0 2px 4px -1px rgba(0, 0, 0, 0.06),
    0 20px 25px -5px rgba(0, 0, 0, 0.1);
  overflow: hidden;
  position: relative;
}

/* IoT 视觉动画 */
.iot-visual {
  width: 100%;
  height: 100%;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* 辐射式业务图谱 */
.radiation-visual {
  overflow: hidden;
}

.radial-center {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 10;
}

.core-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 100px;
  height: 100px;
  background: radial-gradient(
    circle,
    rgba(0, 113, 227, 0.3) 0%,
    transparent 70%
  );
  border-radius: 50%;
  animation: glow-pulse 3s ease-in-out infinite;
}

@keyframes glow-pulse {
  0%,
  100% {
    transform: translate(-50%, -50%) scale(1);
    opacity: 0.6;
  }
  50% {
    transform: translate(-50%, -50%) scale(1.3);
    opacity: 0.3;
  }
}

/* 辐射轨道 */
.radial-orbits {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 100%;
  height: 100%;
}

.orbit {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  border-radius: 50%;
}

.orbit-1 {
  width: 140px;
  height: 140px;
  border: 2px solid rgba(0, 113, 227, 0.2);
  background: radial-gradient(
    circle,
    transparent 30%,
    rgba(0, 113, 227, 0.05) 100%
  );
  animation: orbit-rotate 20s linear infinite;
}

.orbit-2 {
  width: 220px;
  height: 220px;
  border: 1px dashed rgba(0, 113, 227, 0.15);
  animation: orbit-rotate 30s linear infinite reverse;
}

.orbit-3 {
  width: 300px;
  height: 300px;
  border: 1px dotted rgba(0, 113, 227, 0.1);
  opacity: 0.7;
  animation: orbit-rotate 40s linear infinite;
}

@keyframes orbit-rotate {
  from {
    transform: translate(-50%, -50%) rotate(0deg);
  }
  to {
    transform: translate(-50%, -50%) rotate(360deg);
  }
}

/* 辐射节点 */
.radial-nodes {
  position: absolute;
  width: 100%;
  height: 100%;
  z-index: 5;
}

.r-node {
  position: absolute;
  display: flex;
  align-items: center;
  justify-content: center;
}

.r-node-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 14px 18px;
  background: white;
  border-radius: 16px;
  box-shadow:
    0 4px 16px rgba(0, 0, 0, 0.08),
    0 0 0 1px rgba(0, 113, 227, 0.1);
  animation: node-float 4s ease-in-out infinite;
  position: relative;
  z-index: 2;
  transition: all 0.3s ease;
}

.r-node-inner::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  border-radius: 16px;
  background: linear-gradient(
    135deg,
    rgba(0, 113, 227, 0.1) 0%,
    transparent 50%
  );
  opacity: 0;
  transition: opacity 0.3s ease;
}

.r-node:hover .r-node-inner {
  transform: translateY(-4px) scale(1.05);
  box-shadow:
    0 8px 24px rgba(0, 113, 227, 0.15),
    0 0 0 2px rgba(0, 113, 227, 0.2);
}

.r-node:hover .r-node-inner::before {
  opacity: 1;
}

.r-node-inner .node-icon {
  font-size: 24px;
  animation: icon-pulse 2s ease-in-out infinite;
}

.r-node-1 .node-icon {
  animation-delay: 0s;
}
.r-node-2 .node-icon {
  animation-delay: 0.5s;
}
.r-node-3 .node-icon {
  animation-delay: 1s;
}
.r-node-4 .node-icon {
  animation-delay: 1.5s;
}

@keyframes icon-pulse {
  0%,
  100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.15);
  }
}

@keyframes node-float {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-6px);
  }
}

.r-node-pulse {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 100%;
  height: 100%;
  background: rgba(0, 113, 227, 0.1);
  border-radius: 16px;
  animation: node-pulse 2s ease-out infinite;
  z-index: 1;
}

@keyframes node-pulse {
  0% {
    transform: translate(-50%, -50%) scale(1);
    opacity: 0.6;
  }
  100% {
    transform: translate(-50%, -50%) scale(1.4);
    opacity: 0;
  }
}

/* 辐射节点位置 - 上下左右分布 */
.r-node-1 {
  top: 8%;
  left: 50%;
  transform: translateX(-50%);
}

.r-node-2 {
  top: 50%;
  right: 5%;
  transform: translateY(-50%);
}

.r-node-3 {
  bottom: 8%;
  left: 50%;
  transform: translateX(-50%);
}

.r-node-4 {
  top: 50%;
  left: 5%;
  transform: translateY(-50%);
}

.r-node-1 .r-node-inner {
  animation-delay: 0s;
}
.r-node-2 .r-node-inner {
  animation-delay: 0.5s;
}
.r-node-3 .r-node-inner {
  animation-delay: 1s;
}
.r-node-4 .r-node-inner {
  animation-delay: 1.5s;
}

/* 辐射连接线 */
.radial-lines {
  position: absolute;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.radial-svg {
  width: 100%;
  height: 100%;
}

/* 基础辐射线 */
.r-line-base {
  stroke: rgba(0, 113, 227, 0.15);
  stroke-width: 1;
}

/* 动态流动辐射线 */
.r-line-flow {
  stroke: url(#radialGrad);
  stroke-width: 2;
  stroke-dasharray: 10 5;
  animation: line-flow 1.5s linear infinite;
}

/* 节点间连接弧线 - 基础 */
.r-arc {
  stroke: rgba(0, 113, 227, 0.12);
  stroke-width: 1.5;
  stroke-dasharray: 6 3;
}

/* 节点间连接弧线 - 动态流动 */
.r-arc-flow {
  stroke: url(#radialGrad);
  stroke-width: 2;
  stroke-dasharray: 8 4;
  animation: arc-flow 3s linear infinite;
  opacity: 0.8;
}

/* 中心数据波纹 */
.data-ripple {
  animation: ripple-expand 3s ease-out infinite;
  transform-origin: center;
}

.data-ripple:nth-child(2) {
  animation-delay: 1s;
}

.data-ripple:nth-child(3) {
  animation-delay: 2s;
}

@keyframes line-flow {
  0% {
    stroke-dashoffset: 30;
  }
  100% {
    stroke-dashoffset: 0;
  }
}

@keyframes arc-flow {
  0% {
    stroke-dashoffset: 24;
  }
  100% {
    stroke-dashoffset: 0;
  }
}

@keyframes ripple-expand {
  0% {
    transform: scale(0.8);
    opacity: 0.6;
  }
  50% {
    opacity: 0.3;
  }
  100% {
    transform: scale(1.2);
    opacity: 0;
  }
}

/* 数据粒子 - 从中心向外流动 */
.data-particles {
  position: absolute;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.particle {
  position: absolute;
  width: 8px;
  height: 8px;
  background: radial-gradient(circle, #0071e3 0%, rgba(0, 113, 227, 0.3) 100%);
  border-radius: 50%;
  box-shadow: 0 0 10px rgba(0, 113, 227, 0.5);
}

/* 向上流动 - 到水文水利 */
.p-1 {
  top: 50%;
  left: 50%;
  animation: particle-to-top 2s ease-out infinite;
}

.p-5 {
  top: 50%;
  left: 50%;
  animation: particle-to-top 2s ease-out infinite 1s;
}

/* 向右流动 - 到智慧园区 */
.p-2 {
  top: 50%;
  left: 50%;
  animation: particle-to-right 2s ease-out infinite 0.5s;
}

.p-6 {
  top: 50%;
  left: 50%;
  animation: particle-to-right 2s ease-out infinite 1.5s;
}

/* 向下流动 - 到无人机巡检 */
.p-3 {
  top: 50%;
  left: 50%;
  animation: particle-to-bottom 2s ease-out infinite 0.25s;
}

.p-7 {
  top: 50%;
  left: 50%;
  animation: particle-to-bottom 2s ease-out infinite 1.25s;
}

/* 向左流动 - 到数字孪生 */
.p-4 {
  top: 50%;
  left: 50%;
  animation: particle-to-left 2s ease-out infinite 0.75s;
}

.p-8 {
  top: 50%;
  left: 50%;
  animation: particle-to-left 2s ease-out infinite 1.75s;
}

@keyframes particle-to-top {
  0% {
    transform: translate(-50%, -50%) scale(0);
    opacity: 0;
  }
  10% {
    transform: translate(-50%, -50%) scale(1);
    opacity: 1;
  }
  90% {
    transform: translate(-50%, calc(-50% - 70px)) scale(0.6);
    opacity: 0.6;
  }
  100% {
    transform: translate(-50%, calc(-50% - 80px)) scale(0);
    opacity: 0;
  }
}

@keyframes particle-to-right {
  0% {
    transform: translate(-50%, -50%) scale(0);
    opacity: 0;
  }
  10% {
    transform: translate(-50%, -50%) scale(1);
    opacity: 1;
  }
  90% {
    transform: translate(calc(-50% + 70px), -50%) scale(0.6);
    opacity: 0.6;
  }
  100% {
    transform: translate(calc(-50% + 80px), -50%) scale(0);
    opacity: 0;
  }
}

@keyframes particle-to-bottom {
  0% {
    transform: translate(-50%, -50%) scale(0);
    opacity: 0;
  }
  10% {
    transform: translate(-50%, -50%) scale(1);
    opacity: 1;
  }
  90% {
    transform: translate(-50%, calc(-50% + 70px)) scale(0.6);
    opacity: 0.6;
  }
  100% {
    transform: translate(-50%, calc(-50% + 80px)) scale(0);
    opacity: 0;
  }
}

@keyframes particle-to-left {
  0% {
    transform: translate(-50%, -50%) scale(0);
    opacity: 0;
  }
  10% {
    transform: translate(-50%, -50%) scale(1);
    opacity: 1;
  }
  90% {
    transform: translate(calc(-50% - 70px), -50%) scale(0.6);
    opacity: 0.6;
  }
  100% {
    transform: translate(calc(-50% - 80px), -50%) scale(0);
    opacity: 0;
  }
}

/* 节点间数据流 */
.node-data-flow {
  position: absolute;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.flow-dot {
  position: absolute;
  width: 6px;
  height: 6px;
  background: #00c853;
  border-radius: 50%;
  box-shadow: 0 0 8px rgba(0, 200, 83, 0.6);
}

/* 顺时针流动：上→右→下→左→上 */
.f-1 {
  top: 15%;
  left: 50%;
  animation: flow-clockwise-1 4s linear infinite;
}

.f-2 {
  top: 50%;
  right: 15%;
  animation: flow-clockwise-2 4s linear infinite 1s;
}

.f-3 {
  bottom: 15%;
  left: 50%;
  animation: flow-clockwise-3 4s linear infinite 2s;
}

.f-4 {
  top: 50%;
  left: 15%;
  animation: flow-clockwise-4 4s linear infinite 3s;
}

@keyframes flow-clockwise-1 {
  0% {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
  }
  25% {
    transform: translateX(100px) translateY(50px);
    opacity: 0.5;
  }
  50% {
    transform: translateX(0) translateY(100px);
    opacity: 0;
  }
  100% {
    opacity: 0;
  }
}

@keyframes flow-clockwise-2 {
  0% {
    transform: translateY(-50%) translateX(0);
    opacity: 1;
  }
  25% {
    transform: translateY(100px) translateX(-50px);
    opacity: 0.5;
  }
  50% {
    transform: translateY(0) translateX(-100px);
    opacity: 0;
  }
  100% {
    opacity: 0;
  }
}

@keyframes flow-clockwise-3 {
  0% {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
  }
  25% {
    transform: translateX(-100px) translateY(-50px);
    opacity: 0.5;
  }
  50% {
    transform: translateX(0) translateY(-100px);
    opacity: 0;
  }
  100% {
    opacity: 0;
  }
}

@keyframes flow-clockwise-4 {
  0% {
    transform: translateY(-50%) translateX(0);
    opacity: 1;
  }
  25% {
    transform: translateY(-100px) translateX(50px);
    opacity: 0.5;
  }
  50% {
    transform: translateY(0) translateX(100px);
    opacity: 0;
  }
  100% {
    opacity: 0;
  }
}

.visual-center {
  position: relative;
  width: 120px;
  height: 120px;
}

.center-core {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 70px;
  height: 70px;
  background: #ffffff;
  border-radius: 50%;
  box-shadow: 0 0 40px rgba(0, 113, 227, 0.3);
  animation: pulse-core 2s ease-in-out infinite;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  border: 3px solid rgba(0, 113, 227, 0.2);
}

.center-core-logo {
  width: 50px;
  height: 50px;
  object-fit: contain;
}

.core-rings {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 100%;
  height: 100%;
}

.core-rings span {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  border: 2px solid rgba(0, 113, 227, 0.2);
  border-radius: 50%;
  animation: ring-expand 3s ease-out infinite;
}

.core-rings span:nth-child(1) {
  width: 80px;
  height: 80px;
  animation-delay: 0s;
}

.core-rings span:nth-child(2) {
  width: 100px;
  height: 100px;
  animation-delay: 1s;
}

.core-rings span:nth-child(3) {
  width: 120px;
  height: 120px;
  animation-delay: 2s;
}

.visual-nodes {
  position: absolute;
  width: 100%;
  height: 100%;
}

.node {
  position: absolute;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 16px;
  background: white;
  border-radius: 16px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
  animation: node-float 4s ease-in-out infinite;
}

.node-icon {
  font-size: 28px;
}

.node-text {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
}

.node-1 {
  top: 15%;
  left: 10%;
  animation-delay: 0s;
}

.node-2 {
  top: 15%;
  right: 10%;
  animation-delay: 1s;
}

.node-3 {
  bottom: 20%;
  left: 10%;
  animation-delay: 2s;
}

.node-4 {
  bottom: 20%;
  right: 10%;
  animation-delay: 3s;
}

.connection-lines {
  position: absolute;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.lines-svg {
  width: 100%;
  height: 100%;
}

.line {
  fill: none;
  stroke: url(#lineGrad);
  stroke-width: 2;
  stroke-dasharray: 200;
  stroke-dashoffset: 200;
  animation: line-draw 3s ease-out infinite;
}

.line-1 {
  animation-delay: 0s;
}
.line-2 {
  animation-delay: 0.5s;
}
.line-3 {
  animation-delay: 1s;
}
.line-4 {
  animation-delay: 1.5s;
}

/* 浮动信息卡 */
.info-float-card {
  position: absolute;
  background: white;
  border-radius: 16px;
  padding: 16px 20px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.12);
  animation: card-float 5s ease-in-out infinite;
}

.card-digital-twin {
  top: 8%;
  left: 8%;
  animation-delay: 0s;
  width: 165px;
}

.card-data-analysis {
  bottom: 8%;
  right: 8%;
  animation-delay: 2.5s;
  width: 145px;
}

.float-image {
  width: 100%;
  border-radius: 8px;
  overflow: hidden;
  margin-top: 8px;
}

.float-card-img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 8px;
}

.float-dot.blue {
  background: #4285f4;
}

.float-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
}

.float-dot {
  width: 8px;
  height: 8px;
  background: #ff6b6b;
  border-radius: 50%;
  animation: dot-pulse 2s ease-in-out infinite;
}

.float-dot.green {
  background: #00c853;
}

.float-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
}

.float-body {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.float-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
}

.float-label {
  font-size: 12px;
  color: var(--text-secondary);
}

.float-value {
  font-size: 14px;
  font-weight: 700;
  color: var(--primary);
}

.status-text {
  font-size: 16px;
  font-weight: 700;
  color: #00c853;
}

.status-uptime {
  font-size: 12px;
  color: var(--text-secondary);
}

/* 底部产品入口栏 */
.hero-products-bar {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  z-index: 2;
  margin-top: 20px;
}

.product-entry {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 24px;
  background: white;
  border-radius: 16px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
  transition: all var(--duration-fast);
  cursor: pointer;
}

.product-entry:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.08);
}

.entry-icon {
  font-size: 32px;
}

.entry-info {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.entry-name {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
}

.entry-desc {
  font-size: 13px;
  color: var(--text-secondary);
}

/* 动画定义 */
@keyframes pulse-core {
  0%,
  100% {
    transform: translate(-50%, -50%) scale(1);
    box-shadow: 0 0 40px rgba(0, 113, 227, 0.4);
  }
  50% {
    transform: translate(-50%, -50%) scale(1.05);
    box-shadow: 0 0 60px rgba(0, 113, 227, 0.6);
  }
}

@keyframes ring-expand {
  0% {
    transform: translate(-50%, -50%) scale(0.8);
    opacity: 1;
  }
  100% {
    transform: translate(-50%, -50%) scale(1.5);
    opacity: 0;
  }
}

@keyframes node-float {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-8px);
  }
}

@keyframes line-draw {
  0% {
    stroke-dashoffset: 200;
    opacity: 0;
  }
  50% {
    opacity: 1;
  }
  100% {
    stroke-dashoffset: -200;
    opacity: 0;
  }
}

@keyframes card-float {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

@keyframes dot-pulse {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

/* 水文波形动画 */
@keyframes wave-flow {
  0% {
    stroke-dashoffset: 400;
  }
  100% {
    stroke-dashoffset: 0;
  }
}

.wave-path {
  stroke-dasharray: 400;
  stroke-dashoffset: 400;
  animation: wave-flow 4s ease-in-out infinite alternate;
}

.wave-path-2 {
  animation-delay: 1s;
  animation-duration: 5s;
}

/* 数据实时状态指示条 */
.data-pulse {
  position: absolute;
  bottom: 16px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(0, 113, 227, 0.08);
  border: 1px solid rgba(0, 113, 227, 0.2);
  border-radius: 20px;
  padding: 5px 14px;
  white-space: nowrap;
}

.pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #00c853;
  animation: pulse-core 2s ease-in-out infinite;
  flex-shrink: 0;
}

.pulse-text {
  font-size: 12px;
  color: var(--primary);
  font-weight: 500;
}

[data-theme="dark"] .data-pulse {
  background: rgba(0, 212, 255, 0.08);
  border-color: rgba(0, 212, 255, 0.2);
}

[data-theme="dark"] .pulse-text {
  color: var(--primary);
}

.hero-title {
  margin-bottom: 24px;
}

.title-line {
  display: block;
  font-size: clamp(48px, 10vw, 96px);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.015em;
  opacity: 0;
  transform: translateY(40px);
  animation: fadeUp 1s var(--ease-out) forwards;
}

.title-line:nth-child(2) {
  animation-delay: 0.1s;
}

.gradient-text {
  background: linear-gradient(135deg, #0071e3 0%, #42a5f5 50%, #00c853 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: clamp(21px, 3vw, 28px);
  font-weight: 400;
  color: var(--text-secondary);
  margin-bottom: 16px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  opacity: 0;
  transform: translateY(30px);
  animation: fadeUp 1s var(--ease-out) 0.2s forwards;
}

.hero-description {
  font-size: 17px;
  color: var(--text-tertiary);
  line-height: 1.7;
  max-width: 700px;
  margin: 0 auto 32px;
  opacity: 0;
  transform: translateY(30px);
  animation: fadeUp 1s var(--ease-out) 0.25s forwards;
}

.hero-cta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  opacity: 0;
  transform: translateY(20px);
  animation: fadeUp 1s var(--ease-out) 0.4s forwards;
}

/* Hero 统计数据 */
.hero-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  margin-bottom: 40px;
  padding: 24px 40px;
  background: rgba(255, 255, 255, 0.6);
  backdrop-filter: blur(20px);
  border-radius: 20px;
  box-shadow: var(--shadow-sm);
  z-index: 2;
  opacity: 0;
  transform: translateY(30px);
  animation: fadeUp 1s var(--ease-out) 0.5s forwards;
}

.hero-stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 0 32px;
}

.hero-stat-number {
  font-size: 36px;
  font-weight: 700;
  color: var(--primary);
  line-height: 1;
  letter-spacing: -0.02em;
}

.hero-stat-number .suffix {
  font-size: 20px;
  font-weight: 600;
}

.hero-stat-label {
  font-size: 13px;
  color: var(--text-secondary);
  margin-top: 6px;
  font-weight: 500;
}

.hero-stat-divider {
  width: 1px;
  height: 40px;
  background: var(--border);
}

/* Hero 服务领域 */
.hero-services {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-bottom: 50px;
  flex-wrap: wrap;
  z-index: 2;
  opacity: 0;
  transform: translateY(20px);
  animation: fadeUp 1s var(--ease-out) 0.55s forwards;
}

.service-label {
  font-size: 14px;
  color: var(--text-tertiary);
  font-weight: 500;
}

.service-tags {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.service-tag {
  padding: 8px 16px;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: 100px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  transition: all var(--duration-fast);
}

.service-tag:hover {
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-2px);
}

/* 按钮样式 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  font-size: 17px;
  font-weight: 400;
  transition: all var(--duration-fast);
  cursor: pointer;
  border: none;
}

.btn-primary {
  padding: 14px 28px;
  background: var(--primary);
  color: white;
  border-radius: 980px;
}

.btn-primary:hover {
  background: var(--primary-hover);
  transform: scale(1.02);
}

.btn-secondary {
  padding: 14px 28px;
  background: transparent;
  color: var(--primary);
  border: 1.5px solid var(--primary);
  border-radius: 980px;
}

.btn-secondary:hover {
  background: rgba(0, 113, 227, 0.05);
}

.btn-text {
  color: var(--primary);
  font-size: 19px;
  padding: 0;
}

.btn-text:hover {
  text-decoration: underline;
}

.btn-large {
  padding: 16px 32px;
  font-size: 18px;
}

/* Hero 视觉元素 */
.hero-visual {
  margin-top: 20px;
  margin-bottom: 60px;
  opacity: 0;
  transform: translateY(40px);
  animation: fadeUp 1s var(--ease-out) 0.6s forwards;
  position: relative;
}

/* 浮动数据卡片 */
.floating-card {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(20px);
  border-radius: 16px;
  box-shadow: var(--shadow-md);
  animation: float 6s ease-in-out infinite;
}

.floating-card.card-1 {
  top: 10%;
  left: -80px;
  animation-delay: 0s;
}

.floating-card.card-2 {
  top: 50%;
  right: -60px;
  animation-delay: 2s;
}

.floating-card.card-3 {
  bottom: 20%;
  left: -40px;
  animation-delay: 4s;
}

.floating-icon {
  font-size: 24px;
}

.floating-data {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.floating-value {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
}

.floating-label {
  font-size: 12px;
  color: var(--text-secondary);
}

@keyframes float {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

.hero-device {
  position: relative;
  width: 300px;
  height: 400px;
  margin: 0 auto;
}

.device-screen {
  width: 100%;
  height: 100%;
  background: linear-gradient(145deg, #1a1a2e 0%, #16213e 100%);
  border-radius: 24px;
  box-shadow:
    0 50px 100px -20px rgba(0, 0, 0, 0.25),
    0 30px 60px -30px rgba(0, 0, 0, 0.3);
  overflow: hidden;
  position: relative;
}

.screen-content {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.data-visualization {
  position: relative;
  width: 150px;
  height: 150px;
}

.viz-circle {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 80px;
  height: 80px;
  border: 3px solid rgba(0, 212, 255, 0.6);
  border-radius: 50%;
  animation: pulse-ring 2s ease-out infinite;
}

.viz-circle::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 40px;
  height: 40px;
  background: rgba(0, 212, 255, 0.3);
  border-radius: 50%;
}

.viz-lines {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.viz-lines span {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 120px;
  height: 2px;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(0, 212, 255, 0.8),
    transparent
  );
  transform-origin: center;
}

.viz-lines span:nth-child(1) {
  transform: translate(-50%, -50%) rotate(0deg);
}
.viz-lines span:nth-child(2) {
  transform: translate(-50%, -50%) rotate(60deg);
}
.viz-lines span:nth-child(3) {
  transform: translate(-50%, -50%) rotate(120deg);
}

.device-reflection {
  position: absolute;
  bottom: -30px;
  left: 50%;
  transform: translateX(-50%);
  width: 80%;
  height: 40px;
  background: radial-gradient(
    ellipse,
    rgba(0, 113, 227, 0.2) 0%,
    transparent 70%
  );
  filter: blur(20px);
}

/* 客户Logo展示 */
.hero-clients {
  text-align: center;
  z-index: 2;
  opacity: 0;
  transform: translateY(20px);
  animation: fadeUp 1s var(--ease-out) 0.7s forwards;
}

.clients-label {
  font-size: 13px;
  color: var(--text-tertiary);
  margin-bottom: 20px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.clients-logos {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 48px;
  flex-wrap: wrap;
}

.client-logo {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-tertiary);
  opacity: 0.5;
  transition: opacity var(--duration-fast);
}

.client-logo:hover {
  opacity: 1;
}

/* 滚动提示 */
.scroll-hint {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
}

.scroll-line {
  width: 1px;
  height: 60px;
  background: linear-gradient(to bottom, var(--text-secondary), transparent);
  animation: scroll-line 2s ease-in-out infinite;
}

/* ========================================
   通用区块样式
   ======================================== */
.section {
  padding: 80px 24px;
}

/* 首屏区域保持较大padding */
.hero-v2 {
  padding: calc(var(--nav-height) + 60px) 60px 40px;
}

.section-container {
  max-width: var(--max-width);
  margin: 0 auto;
}

.section-header {
  text-align: center;
  margin-bottom: 80px;
}

.section-eyebrow {
  display: block;
  font-size: 17px;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 12px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.section-title {
  font-size: clamp(40px, 6vw, 64px);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.015em;
}

/* ========================================
   产品展示 - 卡片网格
   ======================================== */
.section-products {
  background: var(--bg-secondary);
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.product-card {
  background: var(--bg-primary);
  border-radius: 24px;
  padding: 48px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 500px;
  transition: all var(--duration-normal) var(--ease-out);
  box-shadow: var(--shadow-sm);
}

.product-card:hover {
  transform: scale(1.02);
  box-shadow: var(--shadow-card);
}

.product-featured {
  grid-column: span 2;
  flex-direction: row;
  align-items: center;
  min-height: 600px;
}

.product-wide {
  grid-column: span 2;
  flex-direction: row;
  align-items: center;
}

.product-content {
  flex: 1;
}

.product-featured .product-content,
.product-wide .product-content {
  max-width: 400px;
}

.product-badge {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 12px;
}

.product-name {
  font-size: 32px;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 16px;
  letter-spacing: -0.015em;
}

.product-desc {
  font-size: 19px;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 24px;
}

.product-link {
  color: var(--primary);
  text-decoration: none;
  font-size: 17px;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: gap var(--duration-fast);
}

.product-link:hover {
  gap: 8px;
}

.product-visual {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 40px;
}

.product-featured .product-visual,
.product-wide .product-visual {
  margin-top: 0;
  margin-left: 40px;
}

/* 水文监测视觉 */
.water-monitoring-visual {
  position: relative;
  width: 280px;
  height: 280px;
}

.wave-animation {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 60%;
  background: linear-gradient(
    180deg,
    rgba(0, 113, 227, 0.1) 0%,
    rgba(0, 113, 227, 0.3) 100%
  );
  border-radius: 0 0 140px 140px;
  overflow: hidden;
}

.wave-animation::before {
  content: "";
  position: absolute;
  top: 0;
  left: -50%;
  width: 200%;
  height: 20px;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1200 120' preserveAspectRatio='none'%3E%3Cpath d='M0,0V46.29c47.79,22.2,103.59,32.17,158,28,70.36-5.37,136.33-33.31,206.8-37.5C438.64,32.43,512.34,53.67,583,72.05c69.27,18,138.3,24.88,209.4,13.08,36.15-6,69.85-17.84,104.45-29.34C989.49,25,1113-14.29,1200,52.47V0Z' fill='rgba(0, 113, 227, 0.3)'/%3E%3C/svg%3E");
  background-size: 50% 100%;
  animation: wave 3s linear infinite;
}

.data-points {
  position: absolute;
  top: 20%;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 16px;
}

.data-point {
  width: 12px;
  height: 12px;
  background: var(--primary);
  border-radius: 50%;
  animation: data-pulse 2s ease-in-out infinite;
}

.data-point:nth-child(2) {
  animation-delay: 0.3s;
}
.data-point:nth-child(3) {
  animation-delay: 0.6s;
}

/* 工业视觉 */
.industrial-visual {
  width: 150px;
  height: 150px;
  background: var(--bg-secondary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.gear-icon {
  width: 80px;
  height: 80px;
  border: 4px solid var(--primary);
  border-radius: 50%;
  border-style: dashed;
  animation: rotate 10s linear infinite;
}

/* 环境视觉 */
.environment-visual {
  width: 150px;
  height: 150px;
  background: linear-gradient(135deg, #e8f5e9 0%, #c8e6c9 100%);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.leaf-icon {
  width: 60px;
  height: 60px;
  background: #4caf50;
  border-radius: 0 50% 0 50%;
  transform: rotate(-45deg);
}

/* 集成视觉 */
.integrated-visual {
  position: relative;
  width: 250px;
  height: 200px;
}

.chip-icon {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 80px;
  height: 80px;
  background: var(--bg-secondary);
  border-radius: 12px;
  border: 2px solid var(--border);
}

.chip-icon::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 40px;
  height: 40px;
  background: var(--primary);
  border-radius: 4px;
}

.connection-lines {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
}

.connection-lines::before,
.connection-lines::after {
  content: "";
  position: absolute;
  background: var(--border);
}

.connection-lines::before {
  top: 50%;
  left: 20px;
  right: 20px;
  height: 2px;
}

.connection-lines::after {
  left: 50%;
  top: 20px;
  bottom: 20px;
  width: 2px;
}

/* ========================================
   解决方案 - 左右交替布局
   ======================================== */
.section-solutions {
  background: var(--bg-primary);
}

.solutions-showcase {
  display: flex;
  flex-direction: column;
  gap: 120px;
}

.solution-item {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.solution-reverse {
  direction: rtl;
}

.solution-reverse > * {
  direction: ltr;
}

.solution-image {
  position: relative;
}

.image-placeholder {
  aspect-ratio: 4/3;
  background: var(--bg-secondary);
  border-radius: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.image-placeholder.large {
  aspect-ratio: 16/10;
}

.image-placeholder.water {
  background: linear-gradient(135deg, #e3f2fd 0%, #bbdefb 100%);
}

.image-placeholder.industry {
  background: linear-gradient(135deg, #f5f5f5 0%, #e0e0e0 100%);
}

.image-placeholder.environment {
  background: linear-gradient(135deg, #e8f5e9 0%, #c8e6c9 100%);
}

.placeholder-icon {
  font-size: 80px;
  opacity: 0.8;
}

.solution-content {
  max-width: 480px;
}

.solution-category {
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 16px;
}

.solution-title {
  font-size: clamp(32px, 4vw, 48px);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.015em;
  margin-bottom: 20px;
}

.solution-desc {
  font-size: 19px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 24px;
}

.solution-link {
  color: var(--primary);
  text-decoration: none;
  font-size: 17px;
  font-weight: 500;
}

.solution-link:hover {
  text-decoration: underline;
}

/* ========================================
   技术优势
   ======================================== */
.section-technology {
  background: var(--bg-secondary);
}

.tech-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-bottom: 100px;
}

.tech-card {
  background: var(--bg-primary);
  border-radius: 20px;
  padding: 40px 32px;
  text-align: center;
  transition: all var(--duration-normal) var(--ease-out);
  box-shadow: var(--shadow-sm);
}

.tech-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.tech-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 24px;
  color: var(--primary);
}

.tech-icon svg {
  width: 100%;
  height: 100%;
}

.tech-name {
  font-size: 21px;
  font-weight: 600;
  margin-bottom: 12px;
}

.tech-desc {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* 统计数据 */
.tech-stats {
  background: var(--bg-primary);
  border-radius: 24px;
  padding: 60px;
}

.stat-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
  text-align: center;
}

.stat-item {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.stat-value {
  font-size: 48px;
  font-weight: 700;
  color: var(--primary);
  line-height: 1;
}

.stat-suffix {
  font-size: 32px;
  font-weight: 600;
}

.stat-label {
  font-size: 15px;
  color: var(--text-secondary);
}

/* ========================================
   案例展示
   ======================================== */
.section-cases {
  background: var(--bg-primary);
}

.cases-carousel {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.case-card {
  background: var(--bg-secondary);
  border-radius: 24px;
  overflow: hidden;
  transition: all var(--duration-normal) var(--ease-out);
}

.case-card:hover {
  transform: scale(1.01);
  box-shadow: var(--shadow-lg);
}

.case-featured {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
}

.case-featured .case-image {
  aspect-ratio: 16/10;
}

.case-featured .case-content {
  padding: 60px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.cases-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.cases-grid .case-card {
  display: flex;
  flex-direction: column;
}

.cases-grid .case-image {
  aspect-ratio: 16/9;
}

.cases-grid .case-content {
  padding: 32px;
}

.case-image {
  overflow: hidden;
}

.case-tag {
  font-size: 12px;
  font-weight: 600;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 12px;
}

.case-title {
  font-size: 24px;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 12px;
  letter-spacing: -0.015em;
}

.case-featured .case-title {
  font-size: 32px;
}

.case-desc {
  font-size: 17px;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 20px;
}

.case-link {
  color: var(--primary);
  text-decoration: none;
  font-size: 15px;
  font-weight: 500;
  margin-top: auto;
}

.case-link:hover {
  text-decoration: underline;
}

/* ========================================
   关于我们
   ======================================== */
.section-about {
  background: var(--bg-secondary);
}

.about-content {
  max-width: 800px;
  margin: 0 auto;
}

.about-text {
  text-align: center;
  margin-bottom: 100px;
}

.about-text .section-title {
  margin-bottom: 24px;
}

.about-desc {
  font-size: 21px;
  color: var(--text-secondary);
  line-height: 1.6;
  max-width: 600px;
  margin: 0 auto 60px;
}

.about-features {
  display: flex;
  justify-content: center;
  gap: 80px;
}

.about-feature {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.feature-number {
  font-size: 48px;
  font-weight: 700;
  color: var(--primary);
  line-height: 1;
}

.feature-label {
  font-size: 15px;
  color: var(--text-secondary);
}

/* 合作伙伴 */
.about-partners {
  text-align: center;
}

.partners-title {
  font-size: 17px;
  font-weight: 600;
  color: var(--text-tertiary);
  margin-bottom: 40px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.partners-logos {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: 60px;
}

.partner-logo {
  font-size: 21px;
  font-weight: 600;
  color: var(--text-tertiary);
  opacity: 0.6;
  transition: opacity var(--duration-fast);
}

.partner-logo:hover {
  opacity: 1;
}

/* ========================================
   CTA 区域
   ======================================== */
.section-cta {
  background: var(--bg-primary);
  padding: 120px 24px;
}

.cta-content {
  text-align: center;
  max-width: 600px;
  margin: 0 auto;
}

.cta-title {
  font-size: clamp(40px, 6vw, 56px);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.015em;
  margin-bottom: 20px;
}

.cta-desc {
  font-size: 21px;
  color: var(--text-secondary);
  margin-bottom: 40px;
}

.cta-buttons {
  display: flex;
  justify-content: center;
  gap: 20px;
}

/* ========================================
   页脚
   ======================================== */
.footer {
  background: var(--bg-secondary);
  padding: 60px 24px 24px;
}

.footer-container {
  max-width: var(--max-width);
  margin: 0 auto;
}

.footer-main {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 80px;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 24px;
}

/* 简化版页脚 */
.footer-simple {
  grid-template-columns: auto 1fr;
  align-items: center;
  gap: 60px;
}

.footer-contact-simple {
  display: flex;
  flex-wrap: wrap;
  gap: 32px;
}

.contact-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.contact-label {
  font-size: 12px;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.contact-value {
  font-size: 14px;
  color: var(--text-secondary);
  text-decoration: none;
}

.contact-value:hover {
  color: var(--accent-color);
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-primary);
  font-weight: 600;
  margin-bottom: 8px;
}

.footer-logo-img {
  width: 28px;
  height: 28px;
  object-fit: contain;
}

.footer-tagline {
  font-size: 15px;
  color: var(--text-secondary);
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
}

.footer-column h4 {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 16px;
}

.footer-column ul {
  list-style: none;
}

.footer-column li {
  margin-bottom: 12px;
}

.footer-column a {
  font-size: 13px;
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--duration-fast);
}

.footer-column a:hover {
  color: var(--text-primary);
  text-decoration: underline;
}

.footer-bottom {
  display: flex;
  justify-content: center;
  align-items: center;
  text-align: center;
}

.footer-copyright {
  font-size: 13px;
  color: var(--text-tertiary);
  width: 100%;
  text-align: center;
}

.footer-legal {
  display: flex;
  gap: 24px;
}

.footer-legal a {
  font-size: 13px;
  color: var(--text-secondary);
  text-decoration: none;
}

.footer-legal a:hover {
  text-decoration: underline;
}

/* ========================================
   动画
   ======================================== */
@keyframes fadeUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulse-ring {
  0% {
    transform: translate(-50%, -50%) scale(1);
    opacity: 1;
  }
  100% {
    transform: translate(-50%, -50%) scale(1.5);
    opacity: 0;
  }
}

@keyframes data-pulse {
  0%,
  100% {
    transform: scale(1);
    opacity: 1;
  }
  50% {
    transform: scale(1.2);
    opacity: 0.7;
  }
}

@keyframes wave {
  0% {
    transform: translateX(0);
  }
  100% {
    transform: translateX(-50%);
  }
}

@keyframes rotate {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

@keyframes scroll-line {
  0%,
  100% {
    transform: scaleY(0);
    transform-origin: top;
  }
  50% {
    transform: scaleY(1);
    transform-origin: top;
  }
  51% {
    transform-origin: bottom;
  }
  100% {
    transform: scaleY(0);
    transform-origin: bottom;
  }
}

/* 滚动触发动画 */
[data-animate] {
  opacity: 0;
  transform: translateY(40px);
  transition:
    opacity 0.8s var(--ease-out),
    transform 0.8s var(--ease-out);
}

[data-animate].animated {
  opacity: 1;
  transform: translateY(0);
}

/* ========================================
   深色主题特定样式
   ======================================== */

/* Hero 区域深色适配 */
[data-theme="dark"] .hero-v2 {
  background: var(--gradient-hero);
}

[data-theme="dark"] .hero-v2::before {
  background: linear-gradient(
    180deg,
    rgba(0, 212, 255, 0.03) 0%,
    rgba(0, 212, 255, 0.06) 100%
  );
}

[data-theme="dark"] .hero-tag {
  background: rgba(0, 212, 255, 0.1);
  border-color: rgba(0, 212, 255, 0.2);
}

[data-theme="dark"] .title-sub {
  background: linear-gradient(135deg, #00d4ff 0%, #00ff88 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

[data-theme="dark"] .btn-outline {
  border-color: var(--primary);
  color: var(--primary);
}

[data-theme="dark"] .btn-outline:hover {
  background: var(--primary);
  color: #0a0f1a;
}

[data-theme="dark"] .hero-image-main {
  background: #0f172a;
  border: 1px solid rgba(0, 212, 255, 0.1);
}

[data-theme="dark"] .center-core {
  background: #ffffff;
  box-shadow: 0 0 40px rgba(0, 212, 255, 0.3);
  border-color: rgba(0, 212, 255, 0.3);
}

[data-theme="dark"] .core-rings span {
  border-color: rgba(0, 212, 255, 0.2);
}

[data-theme="dark"] .node,
[data-theme="dark"] .r-node-inner {
  background: #0f172a;
  border: 1px solid rgba(0, 212, 255, 0.1);
}

[data-theme="dark"] .orbit {
  border-color: rgba(0, 212, 255, 0.2);
}

[data-theme="dark"] .orbit-1 {
  background: radial-gradient(
    circle,
    transparent 30%,
    rgba(0, 212, 255, 0.08) 100%
  );
}

[data-theme="dark"] .r-line-base {
  stroke: rgba(0, 212, 255, 0.2);
}

[data-theme="dark"] .r-line-flow {
  stroke: url(#radialGradDark);
}

[data-theme="dark"] .r-arc {
  stroke: rgba(0, 212, 255, 0.15);
}

[data-theme="dark"] .r-arc-flow {
  stroke: url(#radialGradDark);
}

[data-theme="dark"] .particle {
  background: radial-gradient(circle, #00d4ff 0%, rgba(0, 212, 255, 0.3) 100%);
  box-shadow: 0 0 10px rgba(0, 212, 255, 0.5);
}

[data-theme="dark"] .flow-dot {
  background: #00ff88;
  box-shadow: 0 0 8px rgba(0, 255, 136, 0.6);
}

[data-theme="dark"] .core-glow {
  background: radial-gradient(
    circle,
    rgba(0, 212, 255, 0.4) 0%,
    transparent 70%
  );
}

[data-theme="dark"] .r-node-inner {
  box-shadow:
    0 4px 16px rgba(0, 0, 0, 0.3),
    0 0 0 1px rgba(0, 212, 255, 0.2);
}

[data-theme="dark"] .r-node:hover .r-node-inner {
  box-shadow:
    0 8px 24px rgba(0, 212, 255, 0.2),
    0 0 0 2px rgba(0, 212, 255, 0.3);
}

[data-theme="dark"] .info-float-card {
  background: #0f172a;
  border: 1px solid rgba(0, 212, 255, 0.1);
}

[data-theme="dark"] .float-card-img {
  filter: brightness(0.95) contrast(1.1);
  border-radius: 6px;
}

[data-theme="dark"] .product-entry {
  background: #0f172a;
  border: 1px solid rgba(0, 212, 255, 0.1);
}

/* 深色主题导航栏适配 */
[data-theme="dark"] .navbar {
  background: rgba(10, 15, 26, 0.85);
  border-bottom-color: rgba(0, 212, 255, 0.15);
}

[data-theme="dark"] .nav-link {
  color: #e2e8f0;
}

[data-theme="dark"] .nav-link:hover {
  color: #00d4ff;
}

[data-theme="dark"] .nav-link.active {
  color: #00d4ff;
}

[data-theme="dark"] .nav-link.active::after {
  background: #00d4ff;
}

[data-theme="dark"] .product-entry:hover {
  border-color: rgba(0, 212, 255, 0.3);
  box-shadow: 0 12px 24px rgba(0, 212, 255, 0.1);
}

/* 产品卡片深色适配 */
[data-theme="dark"] .product-card {
  background: #0f172a;
  border: 1px solid rgba(0, 212, 255, 0.1);
}

[data-theme="dark"] .product-card:hover {
  border-color: rgba(0, 212, 255, 0.3);
}

[data-theme="dark"] .highlight-section {
  background: rgba(0, 212, 255, 0.05);
}

/* 技术栈卡片深色适配 */
[data-theme="dark"] .tech-card {
  background: #0f172a;
  border: 1px solid rgba(0, 212, 255, 0.1);
}

[data-theme="dark"] .tech-card:hover {
  border-color: rgba(0, 212, 255, 0.3);
}

[data-theme="dark"] .tech-stats {
  background: #0f172a;
  border: 1px solid rgba(0, 212, 255, 0.1);
}

/* 重点产品卡片深色适配（3D翻转版） */
[data-theme="dark"] .fp3-front {
  background: #0f172a;
  border-color: rgba(0, 212, 255, 0.1);
}

[data-theme="dark"] .fp3-tag {
  background: #0a1628;
  border-color: rgba(0, 212, 255, 0.12);
  color: #a0aec0;
}

[data-theme="dark"] .fp3-hint {
  color: #64748b;
}

[data-theme="dark"] .solution-card-contact {
  border-color: rgba(0, 212, 255, 0.3);
  background: linear-gradient(
    135deg,
    rgba(0, 212, 255, 0.04),
    rgba(0, 212, 255, 0.06)
  );
}

/* 解决方案卡片深色适配 */
[data-theme="dark"] .solution-card {
  background: #0f172a;
  border-color: rgba(0, 212, 255, 0.1);
}

[data-theme="dark"] .solution-card:hover {
  border-color: rgba(0, 212, 255, 0.25);
}

[data-theme="dark"] .solution-card-tags span {
  color: var(--primary);
  background: rgba(0, 212, 255, 0.08);
  border-color: rgba(0, 212, 255, 0.18);
}

/* 研发能力卡片深色适配 */
[data-theme="dark"] .rnd-card {
  background: #0f172a;
  border-color: rgba(0, 212, 255, 0.1);
}

[data-theme="dark"] .rnd-card:hover {
  border-color: rgba(0, 212, 255, 0.25);
}

[data-theme="dark"] .rnd-card-icon {
  background: rgba(0, 212, 255, 0.08);
  color: var(--primary);
}

/* 保障体系卡片深色适配 */
[data-theme="dark"] .trust-card {
  background: #0f172a;
  border-color: rgba(0, 212, 255, 0.1);
}

[data-theme="dark"] .trust-card:hover {
  border-color: rgba(0, 212, 255, 0.25);
}

[data-theme="dark"] .trust-card-primary {
  border-color: rgba(0, 212, 255, 0.3);
  background: rgba(0, 212, 255, 0.04);
}

[data-theme="dark"] .trust-icon {
  background: rgba(0, 212, 255, 0.08);
  color: var(--primary);
}

[data-theme="dark"] .trust-list li::before {
  color: var(--primary);
}

/* 案例卡片深色适配 */
[data-theme="dark"] .case-card {
  background: #0f172a;
  border: 1px solid rgba(0, 212, 255, 0.1);
}

/* 案例展示V2 - 2列网格布局 */
.cases-grid-v2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

.case-card-v2 {
  background: var(--bg-secondary);
  border-radius: 20px;
  overflow: hidden;
  transition: all var(--duration-normal) var(--ease-out);
  display: flex;
  flex-direction: column;
}

.case-card-v2:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.case-image-v2 {
  aspect-ratio: 16/10;
  overflow: hidden;
  background: var(--gradient-blue);
  display: flex;
  align-items: center;
  justify-content: center;
}

.case-image-v2 .image-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(
    135deg,
    rgba(0, 113, 227, 0.1) 0%,
    rgba(0, 198, 255, 0.1) 100%
  );
}

.case-image-v2 .placeholder-icon {
  font-size: 48px;
  opacity: 0.8;
}

.case-card-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

[data-theme="dark"] .case-card-img {
  filter: brightness(0.95) contrast(1.05);
}

.case-content-v2 {
  padding: 28px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.case-content-v2 .case-tag {
  display: inline-block;
  padding: 4px 12px;
  background: rgba(0, 113, 227, 0.1);
  color: var(--primary);
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
  margin-bottom: 12px;
  width: fit-content;
}

.case-content-v2 .case-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 12px;
  line-height: 1.4;
}

.case-content-v2 .case-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
  flex: 1;
}

[data-theme="dark"] .case-card-v2 {
  background: #0f172a;
  border: 1px solid rgba(0, 212, 255, 0.1);
}

[data-theme="dark"] .case-content-v2 .case-tag {
  background: rgba(0, 212, 255, 0.1);
}

@media (max-width: 768px) {
  .cases-grid-v2 {
    grid-template-columns: 1fr;
    gap: 24px;
  }
}

[data-theme="dark"] .story-card {
  background: #0f172a;
}

/* 新闻区域深色适配 */
[data-theme="dark"] .news-category {
  background: #0f172a;
  border: 1px solid rgba(0, 212, 255, 0.1);
}

/* 联系表单深色适配 */
[data-theme="dark"] .contact-form-wrapper,
[data-theme="dark"] .info-card {
  background: #0f172a;
  border: 1px solid rgba(0, 212, 255, 0.1);
}

[data-theme="dark"] .form-group input,
[data-theme="dark"] .form-group textarea {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(0, 212, 255, 0.2);
  color: var(--text-primary);
}

[data-theme="dark"] .form-group input:focus,
[data-theme="dark"] .form-group textarea:focus {
  border-color: var(--primary);
  background: rgba(0, 212, 255, 0.05);
}

/* 页脚深色适配 */
[data-theme="dark"] .footer {
  background: #05080f;
  border-top: 1px solid rgba(0, 212, 255, 0.1);
}

/* 解决方案深色适配 */
[data-theme="dark"] .solution-card {
  background: #0f172a;
  border: 1px solid rgba(0, 212, 255, 0.1);
}

[data-theme="dark"] .solution-card::before {
  background: linear-gradient(90deg, #00d4ff, #00ff88);
}

[data-theme="dark"] .solution-card.highlight {
  background: rgba(0, 212, 255, 0.05);
  border-color: rgba(0, 212, 255, 0.3);
}

/* 统计区域深色适配 */
[data-theme="dark"] .stats-section {
  background: rgba(0, 212, 255, 0.03);
  border: 1px solid rgba(0, 212, 255, 0.1);
}

/* 关于我们深色适配 */
[data-theme="dark"] .about-card {
  background: #0f172a;
  border: 1px solid rgba(0, 212, 255, 0.1);
}

[data-theme="dark"] .about-card:hover {
  border-color: rgba(0, 212, 255, 0.3);
  box-shadow: 0 0 30px rgba(0, 212, 255, 0.1);
}

[data-theme="dark"] .cert-item {
  background: rgba(0, 212, 255, 0.05);
}

/* 服务项深色适配 */
[data-theme="dark"] .service-item,
[data-theme="dark"] .dev-item {
  background: #0f172a;
  border: 1px solid rgba(0, 212, 255, 0.1);
}

[data-theme="dark"] .service-item:hover,
[data-theme="dark"] .dev-item:hover {
  border-color: rgba(0, 212, 255, 0.3);
}

/* 合作伙伴深色适配 */
[data-theme="dark"] .partner-logo {
  background: #0f172a;
  border: 1px solid rgba(0, 212, 255, 0.1);
}

[data-theme="dark"] .partner-logo:hover {
  border-color: rgba(0, 212, 255, 0.3);
}

/* 安全卡片深色适配 */
[data-theme="dark"] .security-card,
[data-theme="dark"] .rd-card,
[data-theme="dark"] .rd-highlight {
  background: #0f172a;
  border: 1px solid rgba(0, 212, 255, 0.1);
}

/* 政策内容深色适配 */
[data-theme="dark"] .policy-highlight {
  background: rgba(0, 212, 255, 0.05);
  border-left-color: var(--primary);
}

/* 滚动条深色适配 */
[data-theme="dark"] ::-webkit-scrollbar-track {
  background: #0a0f1a;
}

[data-theme="dark"] ::-webkit-scrollbar-thumb {
  background: var(--primary);
}

/* 选择文本深色适配 */
[data-theme="dark"] ::selection {
  background: rgba(0, 212, 255, 0.3);
  color: #ffffff;
}

/* ========================================
   响应式设计
   ======================================== */
@media (max-width: 1024px) {
  .hero-v2 {
    grid-template-columns: 1fr;
    padding: calc(var(--nav-height) + 40px) 40px 40px;
  }

  .hero-left {
    padding-right: 0;
    text-align: center;
    align-items: center;
  }

  .hero-desc-v2 {
    max-width: 100%;
  }

  .hero-metrics {
    justify-content: center;
  }

  .hero-right {
    order: -1;
    min-height: 400px;
  }

  .hero-image-wrapper {
    max-width: 400px;
  }

  .hero-products-bar {
    grid-template-columns: repeat(2, 1fr);
  }

  .info-float-card {
    display: none;
  }

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

  .product-featured,
  .product-wide {
    grid-column: span 1;
    flex-direction: column;
  }

  .product-featured .product-visual,
  .product-wide .product-visual {
    margin-left: 0;
    margin-top: 40px;
  }

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

  .stat-row {
    grid-template-columns: repeat(2, 1fr);
    gap: 40px 20px;
  }

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

  .case-featured {
    grid-template-columns: 1fr;
  }

  .case-featured .case-content {
    padding: 40px;
  }

  .solution-item {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .solution-reverse {
    direction: ltr;
  }

  .about-features {
    gap: 40px;
  }

  .footer-main {
    grid-template-columns: 1fr;
    gap: 40px;
  }
}

@media (max-width: 768px) {
  :root {
    --section-padding: 100px;
  }

  .nav-menu {
    display: none;
  }

  .nav-actions {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  /* Hero V2 移动端适配 */
  .hero-v2 {
    padding: calc(var(--nav-height) + 30px) 24px 30px;
    gap: 30px;
  }

  .hero-left {
    text-align: center;
  }

  .hero-tag {
    margin: 0 auto 20px;
    font-size: 12px;
    padding: 6px 14px;
  }

  .title-main,
  .title-sub {
    font-size: 40px;
  }

  .hero-desc-v2 {
    font-size: 16px;
    margin-bottom: 24px;
  }

  .hero-actions {
    flex-direction: column;
    gap: 12px;
    margin-bottom: 32px;
  }

  .btn-large {
    width: 100%;
    justify-content: center;
  }

  .hero-metrics {
    justify-content: center;
    gap: 24px;
  }

  .metric-value {
    font-size: 24px;
  }

  .metric-label {
    font-size: 12px;
  }

  .hero-right {
    min-height: 350px;
  }

  .hero-image-wrapper {
    max-width: 320px;
  }

  .visual-center {
    width: 100px;
    height: 100px;
  }

  .center-core {
    width: 60px;
    height: 60px;
  }

  .center-core-logo {
    width: 42px;
    height: 42px;
  }

  .core-rings span:nth-child(1) {
    width: 70px;
    height: 70px;
  }
  .core-rings span:nth-child(2) {
    width: 90px;
    height: 90px;
  }
  .core-rings span:nth-child(3) {
    width: 110px;
    height: 110px;
  }

  .node,
  .r-node-inner {
    padding: 10px 14px;
  }

  .node-icon,
  .r-node-inner .node-icon {
    font-size: 18px;
  }

  .node-text,
  .r-node-inner .node-text {
    font-size: 10px;
  }

  .orbit-1 {
    width: 100px;
    height: 100px;
  }

  .orbit-2 {
    width: 160px;
    height: 160px;
  }

  .orbit-3 {
    width: 220px;
    height: 220px;
  }

  .r-node-1 {
    top: 5%;
  }
  .r-node-2 {
    right: 2%;
  }
  .r-node-3 {
    bottom: 5%;
  }
  .r-node-4 {
    left: 2%;
  }

  .hero-products-bar {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    margin-top: 10px;
  }

  .product-entry {
    padding: 16px;
    flex-direction: column;
    text-align: center;
    gap: 12px;
  }

  .entry-icon {
    font-size: 28px;
  }

  .entry-name {
    font-size: 14px;
  }

  .entry-desc {
    font-size: 12px;
  }

  .product-card {
    padding: 32px;
    min-height: auto;
  }

  .product-name {
    font-size: 24px;
  }

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

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

  .stat-value {
    font-size: 32px;
  }

  .about-features {
    flex-direction: column;
    gap: 32px;
  }

  .partners-logos {
    gap: 32px;
  }

  .cta-buttons {
    flex-direction: column;
    align-items: center;
  }

  .footer-links {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }

  .footer-legal {
    flex-wrap: wrap;
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .section {
    padding: 80px 20px;
  }

  .nav-container {
    padding: 0 16px;
  }

  .hero-v2 {
    padding: calc(var(--nav-height) + 20px) 16px 20px;
  }

  .title-main,
  .title-sub {
    font-size: 32px;
  }

  .hero-desc-v2 {
    font-size: 14px;
  }

  .hero-metrics {
    flex-direction: column;
    gap: 16px;
  }

  .metric-item {
    flex-direction: row;
    align-items: center;
    gap: 8px;
  }

  .hero-right {
    min-height: 300px;
  }

  .hero-image-wrapper {
    max-width: 280px;
  }

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

  .product-entry {
    flex-direction: row;
    text-align: left;
  }

  .section-title {
    font-size: 32px;
  }

  .product-card {
    padding: 24px;
  }

  .tech-stats {
    padding: 40px 24px;
  }
}

/* ====================================
   首页四大重点产品展示区（3D翻转卡片）
   ==================================== */
.section-subtitle {
  font-size: 17px;
  color: var(--text-secondary);
  margin-top: 8px;
}

.featured-products-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 48px;
  perspective: 1200px;
}

/* 3D翻转卡片容器 */
.fp3-card {
  height: 440px;
  cursor: pointer;
  perspective: 800px;
}

.fp3-inner {
  position: relative;
  width: 100%;
  height: 100%;
  transform-style: preserve-3d;
  transition: transform 0.6s cubic-bezier(0.34, 1.3, 0.64, 1);
  border-radius: 20px;
}

.fp3-card:hover .fp3-inner {
  transform: rotateY(180deg);
}

/* 正面 */
.fp3-front,
.fp3-back {
  position: absolute;
  inset: 0;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  border-radius: 20px;
  overflow: hidden;
}

.fp3-front {
  background: var(--bg-primary);
  border: 1px solid var(--border-color, var(--border));
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
}

.fp3-img-wrap {
  position: relative;
  padding-bottom: calc(100%);
  overflow: hidden;
  background: var(--bg-secondary);
  flex-shrink: 0;
}

.fp3-img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: calc(100%);
  object-fit: cover;
  transition: transform 0.4s;
}

.fp3-card:hover .fp3-img {
  transform: scale(1.06);
}

.fp3-icon-fallback {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 72px;
  background: linear-gradient(
    135deg,
    var(--bg-secondary),
    var(--bg-tertiary, var(--bg-secondary))
  );
}

.fp3-gradient-bar {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 4px;
}

.fp3-front-body {
  padding: 18px 20px 8px;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.fp3-category {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.fp3-name {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.35;
}

.fp3-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  margin-top: 4px;
}

.fp3-tag {
  font-size: 10px;
  font-weight: 500;
  color: var(--text-secondary);
  background: var(--bg-secondary);
  border: 1px solid var(--border-color, var(--border));
  border-radius: 5px;
  padding: 2px 7px;
}

.fp3-hint {
  padding: 10px 20px 14px;
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 12px;
  color: var(--text-secondary);
  opacity: 0.7;
}

/* 背面 */
.fp3-back {
  transform: rotateY(180deg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 32px 28px;
  gap: 16px;
  color: white;
  text-align: center;
}

.fp3-back-icon {
  font-size: 52px;
  filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.2));
  animation: fp3-float 3s ease-in-out infinite;
}

@keyframes fp3-float {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-8px);
  }
}

.fp3-back-name {
  font-size: 17px;
  font-weight: 700;
  line-height: 1.3;
  color: #fff;
}

.fp3-back-desc {
  font-size: 13px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.88);
  flex: 1;
}

.fp3-back-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 22px;
  background: rgba(255, 255, 255, 0.2);
  border: 1.5px solid rgba(255, 255, 255, 0.6);
  border-radius: 50px;
  font-size: 13px;
  font-weight: 600;
  color: #fff;
  backdrop-filter: blur(4px);
  transition:
    background 0.2s,
    transform 0.2s;
}

.fp3-card:hover .fp3-back-btn {
  background: rgba(255, 255, 255, 0.3);
  transform: scale(1.04);
}

.products-cta {
  text-align: center;
  margin-top: 56px;
}

/* 突出的CTA按钮样式 - 高对比度设计 */
.btn-cta-prominent {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 16px 32px;
  font-size: 16px;
  font-weight: 600;
  color: #0071e3;
  background: #ffffff;
  border: 2px solid #0071e3;
  border-radius: 12px;
  text-decoration: none;
  box-shadow: 0 4px 16px rgba(0, 113, 227, 0.15);
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
  overflow: hidden;
}

.btn-cta-prominent:hover {
  color: #0051a8;
  background: #f0f7ff;
  border-color: #0051a8;
  transform: translateY(-2px);
  box-shadow:
    0 8px 24px rgba(0, 113, 227, 0.3),
    0 0 0 4px rgba(0, 113, 227, 0.1);
}

.btn-cta-prominent:active {
  transform: translateY(0) scale(0.98);
  box-shadow: 0 4px 12px rgba(0, 113, 227, 0.2);
}

.btn-cta-prominent .btn-text {
  position: relative;
}

.btn-cta-prominent .btn-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  background: rgba(0, 113, 227, 0.1);
  border-radius: 50%;
  transition: all 0.3s ease;
}

.btn-cta-prominent .btn-icon svg {
  stroke: #0071e3;
  transition: stroke 0.3s ease;
}

.btn-cta-prominent:hover .btn-icon {
  background: rgba(0, 81, 168, 0.15);
  transform: translateX(4px);
}

.btn-cta-prominent:hover .btn-icon svg {
  stroke: #0051a8;
}

/* 深色主题适配 */
[data-theme="dark"] .btn-cta-prominent {
  color: #00d4ff;
  background: #0f172a;
  border-color: #00d4ff;
  box-shadow: 0 4px 16px rgba(0, 212, 255, 0.15);
}

[data-theme="dark"] .btn-cta-prominent:hover {
  color: #ffffff;
  background: #1a3a4a;
  border-color: #00d4ff;
  box-shadow:
    0 8px 24px rgba(0, 212, 255, 0.3),
    0 0 0 4px rgba(0, 212, 255, 0.15);
}

[data-theme="dark"] .btn-cta-prominent:active {
  box-shadow: 0 4px 12px rgba(0, 212, 255, 0.2);
}

[data-theme="dark"] .btn-cta-prominent .btn-icon {
  background: rgba(0, 212, 255, 0.1);
}

[data-theme="dark"] .btn-cta-prominent .btn-icon svg {
  stroke: #00d4ff;
}

[data-theme="dark"] .btn-cta-prominent:hover .btn-icon {
  background: rgba(0, 212, 255, 0.2);
}

[data-theme="dark"] .btn-cta-prominent:hover .btn-icon svg {
  stroke: #ffffff;
}

/* 关于区域CTA按钮 */
.about-cta {
  margin-top: 40px;
}

.about-cta .btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

/* 首页资质荣誉展示 - 网格布局 */
.about-honors {
  margin-top: 60px;
  padding: 32px;
  background: var(--bg-primary);
  border-radius: 20px;
  border: 1px solid var(--border-color);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
}

/* 首页资质荣誉网格 */
.honors-grid-home {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 24px;
}

.honor-card-home {
  background: var(--bg-secondary);
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--border-color);
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.05);
}

.honor-card-home:hover {
  transform: translateY(-8px);
  box-shadow: 0 16px 40px rgba(0, 113, 227, 0.15);
  border-color: rgba(0, 113, 227, 0.2);
}

/* 主要资质 - 特色卡片 */
.honor-card-featured {
  grid-column: span 3;
  border: 2px solid var(--border-color);
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.08);
}

.honor-card-featured:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 48px rgba(0, 113, 227, 0.18);
  border-color: rgba(0, 113, 227, 0.3);
}

.honor-card-featured .honor-card-image {
  aspect-ratio: 16/9;
  padding: 32px;
  background: linear-gradient(
    135deg,
    var(--bg-primary) 0%,
    var(--bg-secondary) 50%,
    var(--bg-primary) 100%
  );
  display: flex;
  align-items: center;
  justify-content: center;
}

.honor-card-featured .honor-card-content {
  padding: 24px;
}

.honor-card-featured h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-primary);
  margin: 12px 0 8px;
}

.honor-card-featured p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* 次要资质 - 标准卡片 */
.honor-card-standard {
  grid-column: span 2;
}

.honor-card-standard .honor-card-image {
  aspect-ratio: 3/2;
  padding: 24px;
  background: var(--bg-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
}

.honor-card-standard .honor-card-content {
  padding: 16px;
}

.honor-card-standard h3 {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  margin-top: 8px;
}

/* 图片样式 */
.honor-card-image img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  transition: transform 0.4s ease;
}

.honor-card-home:hover .honor-card-image img {
  transform: scale(1.03);
}

/* 标签样式 */
.honor-card-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 12px;
  font-size: 11px;
  font-weight: 600;
}

.tag-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
}

.tag-national {
  background: rgba(255, 193, 7, 0.15);
  color: #f59e0b;
}

.tag-national .tag-dot {
  background: #f59e0b;
}

.tag-city {
  background: rgba(0, 113, 227, 0.12);
  color: #0071e3;
}

.tag-city .tag-dot {
  background: #0071e3;
}

.tag-iso {
  background: rgba(16, 185, 129, 0.12);
  color: #10b981;
}

.tag-iso .tag-dot {
  background: #10b981;
}

.honors-header-compact {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-bottom: 24px;
}

.honors-icon {
  font-size: 20px;
}

.honors-label {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.honors-marquee {
  overflow: hidden;
  position: relative;
}

.honors-track {
  display: flex;
  gap: 20px;
  animation: marquee 30s linear infinite;
}

.honors-marquee:hover .honors-track {
  animation-play-state: paused;
}

@keyframes marquee {
  0% {
    transform: translateX(0);
  }
  100% {
    transform: translateX(-50%);
  }
}

.honor-badge-item {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 20px;
  background: var(--bg-secondary);
  border-radius: 50px;
  border: 1px solid var(--border-color);
  transition: all 0.3s ease;
  cursor: pointer;
}

.honor-badge-item:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(0, 113, 227, 0.15);
  border-color: rgba(0, 113, 227, 0.3);
}

/* 主要资质 - 大尺寸突出 */
.honor-badge-primary {
  padding: 16px 24px;
  background: linear-gradient(
    135deg,
    var(--bg-primary) 0%,
    var(--bg-secondary) 100%
  );
  border: 2px solid rgba(0, 113, 227, 0.2);
  box-shadow: 0 4px 16px rgba(0, 113, 227, 0.1);
}

.honor-badge-primary:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 12px 28px rgba(0, 113, 227, 0.2);
  border-color: rgba(0, 113, 227, 0.4);
}

.honor-badge-primary .honor-icon-wrap {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.honor-badge-primary .honor-info {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.honor-badge-primary .honor-tag {
  font-size: 11px;
  font-weight: 600;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.honor-badge-primary .honor-name {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
}

/* 次要资质 - 标准尺寸（与主要资质视觉协调） */
.honor-badge-secondary {
  padding: 14px 20px;
  opacity: 0.9;
}

.honor-badge-secondary:hover {
  opacity: 1;
}

.honor-badge-secondary .honor-icon-wrap {
  width: 44px;
  height: 44px;
  border-radius: 10px;
}

.honor-badge-secondary .honor-name {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
}

.honor-icon-wrap {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  overflow: hidden;
  background: var(--bg-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.honor-icon-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.honor-name {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-primary);
  white-space: nowrap;
}

/* 深色主题适配 */
[data-theme="dark"] .about-honors {
  background: var(--bg-secondary);
  border-color: var(--border-color);
}

[data-theme="dark"] .honor-badge-item {
  background: var(--bg-primary);
}

[data-theme="dark"] .honor-badge-item:hover {
  box-shadow: 0 8px 20px rgba(0, 212, 255, 0.15);
  border-color: rgba(0, 212, 255, 0.3);
}

[data-theme="dark"] .honor-badge-primary {
  background: linear-gradient(
    135deg,
    rgba(0, 212, 255, 0.1) 0%,
    var(--bg-secondary) 100%
  );
  border-color: rgba(0, 212, 255, 0.3);
  box-shadow: 0 4px 16px rgba(0, 212, 255, 0.1);
}

[data-theme="dark"] .honor-badge-primary:hover {
  box-shadow: 0 12px 28px rgba(0, 212, 255, 0.25);
  border-color: rgba(0, 212, 255, 0.5);
}

[data-theme="dark"] .honor-badge-primary .honor-tag {
  color: #00d4ff;
}

[data-theme="dark"] .honor-badge-secondary .honor-name {
  color: var(--text-tertiary);
}

[data-theme="dark"] .honor-icon-wrap {
  background: var(--bg-secondary);
}

/* 首页资质荣誉深色主题 */
[data-theme="dark"] .honor-card-home {
  background: var(--bg-secondary);
}

[data-theme="dark"] .honor-card-home:hover {
  box-shadow: 0 16px 40px rgba(0, 212, 255, 0.15);
  border-color: rgba(0, 212, 255, 0.3);
}

[data-theme="dark"] .honor-card-featured {
  border-color: rgba(0, 212, 255, 0.2);
  box-shadow: 0 6px 24px rgba(0, 212, 255, 0.08);
}

[data-theme="dark"] .honor-card-featured:hover {
  box-shadow: 0 20px 48px rgba(0, 212, 255, 0.2);
  border-color: rgba(0, 212, 255, 0.4);
}

[data-theme="dark"] .tag-national {
  background: rgba(255, 193, 7, 0.2);
  color: #fbbf24;
}

[data-theme="dark"] .tag-national .tag-dot {
  background: #fbbf24;
}

[data-theme="dark"] .tag-city {
  background: rgba(0, 212, 255, 0.15);
  color: #00d4ff;
}

[data-theme="dark"] .tag-city .tag-dot {
  background: #00d4ff;
}

[data-theme="dark"] .tag-iso {
  background: rgba(16, 185, 129, 0.15);
  color: #34d399;
}

[data-theme="dark"] .tag-iso .tag-dot {
  background: #34d399;
}

/* 响应式适配 */
@media (max-width: 1024px) {
  .honors-grid-home {
    grid-template-columns: repeat(6, 1fr);
    gap: 20px;
  }

  .honor-card-featured {
    grid-column: span 3;
  }

  .honor-card-standard {
    grid-column: span 2;
  }

  .honor-card-featured h3 {
    font-size: 18px;
  }
}

@media (max-width: 768px) {
  .about-honors {
    padding: 20px;
    margin-top: 40px;
  }

  .honors-grid-home {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .honor-card-featured,
  .honor-card-standard {
    grid-column: span 1;
  }

  .honor-card-featured .honor-card-image,
  .honor-card-standard .honor-card-image {
    padding: 24px;
  }

  .honor-card-featured .honor-card-content {
    padding: 20px;
  }

  .honor-card-standard .honor-card-content {
    padding: 16px;
  }

  .honor-card-featured h3 {
    font-size: 16px;
  }

  .honor-badge-item {
    padding: 10px 16px;
  }

  .honor-icon-wrap {
    width: 36px;
    height: 36px;
  }

  .honor-name {
    font-size: 12px;
  }
}

/* ====================================
   六大解决方案卡片网格
   ==================================== */
.solutions-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.solution-card {
  background: var(--bg-primary);
  border-radius: 20px;
  padding: 32px;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  transition:
    transform 0.25s var(--ease-out),
    box-shadow 0.25s var(--ease-out);
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.solution-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card);
}

.solution-card-icon {
  font-size: 36px;
  line-height: 1;
}

.solution-card-body {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.solution-card-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.3;
}

.solution-card-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}

.solution-card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 4px;
}

.solution-card-tags span {
  font-size: 11px;
  font-weight: 500;
  color: var(--primary);
  background: rgba(0, 113, 227, 0.08);
  border-radius: 6px;
  padding: 3px 10px;
  border: 1px solid rgba(0, 113, 227, 0.2);
}

/* "更多详情方案"联系卡片 */
.solution-card-contact {
  background: linear-gradient(
    135deg,
    rgba(0, 113, 227, 0.04) 0%,
    rgba(66, 165, 245, 0.06) 100%
  );
  border: 2px dashed rgba(0, 113, 227, 0.3);
  position: relative;
  overflow: hidden;
}

.solution-card-contact::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(0, 113, 227, 0.06), transparent);
  opacity: 0;
  transition: opacity 0.3s;
  pointer-events: none;
}

.solution-card-contact:hover::before {
  opacity: 1;
}

[data-theme="dark"] .solution-card-contact:hover::before {
  opacity: 0.1;
}

.solution-contact-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: auto;
  padding: 10px 20px;
  background: var(--primary);
  color: white;
  border-radius: 50px;
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
  transition:
    transform 0.2s,
    box-shadow 0.2s;
  align-self: flex-start;
}

.solution-contact-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 113, 227, 0.35);
}

/* ====================================
   研发能力板块
   ==================================== */
.section-rnd {
  background: var(--bg-primary);
}

.rnd-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.rnd-card {
  background: var(--bg-secondary);
  border-radius: 20px;
  padding: 36px;
  display: flex;
  gap: 24px;
  align-items: flex-start;
  border: 1px solid var(--border-color);
  transition:
    transform 0.25s var(--ease-out),
    box-shadow 0.25s var(--ease-out);
}

.rnd-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-card);
}

.rnd-card-icon {
  flex-shrink: 0;
  width: 52px;
  height: 52px;
  background: rgba(0, 113, 227, 0.1);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 12px;
  color: var(--primary);
}

.rnd-card-icon svg {
  width: 100%;
  height: 100%;
}

.rnd-card-content {
  flex: 1;
}

.rnd-card-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 10px;
}

.rnd-card-desc {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ====================================
   数据安全与可靠性保障板块
   ==================================== */
.section-trust {
  background: var(--bg-secondary);
}

.trust-layout {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.trust-card {
  background: var(--bg-primary);
  border-radius: 20px;
  padding: 36px;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  transition:
    transform 0.25s var(--ease-out),
    box-shadow 0.25s var(--ease-out);
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.trust-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card);
}

.trust-card-primary {
  border-color: var(--primary);
  background: rgba(0, 113, 227, 0.03);
}

.trust-card-header {
  display: flex;
  align-items: center;
  gap: 16px;
}

.trust-icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  background: rgba(0, 113, 227, 0.1);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 10px;
  color: var(--primary);
}

.trust-icon svg {
  width: 100%;
  height: 100%;
}

.trust-card-title {
  font-size: 19px;
  font-weight: 700;
  color: var(--text-primary);
}

.trust-card-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}

.trust-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.trust-list li {
  font-size: 14px;
  color: var(--text-secondary);
  padding-left: 20px;
  position: relative;
  line-height: 1.5;
}

.trust-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--primary);
  font-weight: 700;
  font-size: 13px;
}

/* ====================================
   响应式适配：新板块
   ==================================== */
@media (max-width: 1100px) {
  .featured-products-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .solutions-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .featured-products-grid {
    grid-template-columns: 1fr 1fr;
  }
  .fp3-card {
    height: 400px;
  }
  .solutions-grid {
    grid-template-columns: 1fr;
  }
  .rnd-grid {
    grid-template-columns: 1fr;
  }
  .trust-layout {
    grid-template-columns: 1fr;
  }
  .rnd-card {
    flex-direction: column;
    gap: 16px;
  }
  .section-subtitle {
    font-size: 15px;
  }
}

@media (max-width: 480px) {
  .featured-products-grid {
    grid-template-columns: 1fr;
  }
  .fp3-card {
    height: 420px;
  }
}