/**
 * 低空预警管控服务平台 - 门户样式
 * 科技感、大气、前沿；PC + 移动端响应式
 * 图片占位：页面内所有图片使用统一占位链接，替换 index.html 中 window.PLACEHOLDER_IMAGE 即可
 */

/* 设计图规范：主题绿色 #00d7a4；内容区浅底 #F7F7FA */
:root {
  --bg-deep: #050810;
  --bg-dark: #0a0e27;
  --bg-card: #0f1428;
  --bg-alt: #0d1222;
  --accent: #00d7a4;
  --accent-dim: #00e8b8;
  --accent-glow: rgba(0, 215, 164, 0.35);
  --text: #e2e8f0;
  --text-muted: #94a3b8;
  --border: rgba(0, 215, 164, 0.25);
  --section-bg-light: #f2f5f9;
  --section-bg-light-solutions: #f2f9ff;
  --text-on-light: #111111;
  --text-on-light-dark: #333333;
  --text-muted-on-light: #666666;
  --font-title: 'Orbitron', 'Noto Sans SC', sans-serif;
  --font-body: 'Noto Sans SC', sans-serif;
  --radius: 8px;
  --header-h: 72px;
  --container: min(1400px, 100vw - 2rem);
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-out-back: cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* ========== 全局动效：滚动入场 ========== */
.animate-in {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s var(--ease-out-expo), transform 0.7s var(--ease-out-expo);
}

.animate-in.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.animate-in[data-delay="0"] { transition-delay: 0ms; }
.animate-in[data-delay="80"] { transition-delay: 80ms; }
.animate-in[data-delay="100"] { transition-delay: 100ms; }
.animate-in[data-delay="160"] { transition-delay: 160ms; }
.animate-in[data-delay="200"] { transition-delay: 200ms; }
.animate-in[data-delay="240"] { transition-delay: 240ms; }
.animate-in[data-delay="300"] { transition-delay: 300ms; }
.animate-in[data-delay="320"] { transition-delay: 320ms; }
.animate-in[data-delay="400"] { transition-delay: 400ms; }

/* 子页多种入场动画：左滑、右滑、上弹、缩放 */
.animate-in-left {
  opacity: 0;
  transform: translateX(-40px);
  transition: opacity 0.6s var(--ease-out-expo), transform 0.6s var(--ease-out-expo);
}
.animate-in-left.is-visible { opacity: 1; transform: translateX(0); }

.animate-in-right {
  opacity: 0;
  transform: translateX(40px);
  transition: opacity 0.6s var(--ease-out-expo), transform 0.6s var(--ease-out-expo);
}
.animate-in-right.is-visible { opacity: 1; transform: translateX(0); }

.animate-in-up {
  opacity: 0;
  transform: translateY(36px);
  transition: opacity 0.65s var(--ease-out-expo), transform 0.65s var(--ease-out-expo);
}
.animate-in-up.is-visible { opacity: 1; transform: translateY(0); }

.animate-in-scale {
  opacity: 0;
  transform: scale(0.92);
  transition: opacity 0.6s var(--ease-out-expo), transform 0.6s var(--ease-out-expo);
}
.animate-in-scale.is-visible { opacity: 1; transform: scale(1); }

[class*="animate-in"][data-delay="0"] { transition-delay: 0ms; }
[class*="animate-in"][data-delay="50"] { transition-delay: 50ms; }
[class*="animate-in"][data-delay="80"] { transition-delay: 80ms; }
[class*="animate-in"][data-delay="100"] { transition-delay: 100ms; }
[class*="animate-in"][data-delay="150"] { transition-delay: 150ms; }
[class*="animate-in"][data-delay="200"] { transition-delay: 200ms; }
[class*="animate-in"][data-delay="250"] { transition-delay: 250ms; }

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

html {
  scroll-behavior: smooth;
}

/* 隐藏页面滚动条，保留滚动能力 */
html,
body {
  scrollbar-width: none;
  -ms-overflow-style: none;
}
html::-webkit-scrollbar,
body::-webkit-scrollbar,
*::-webkit-scrollbar {
  display: none;
  width: 0;
  height: 0;
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  overflow-x: hidden;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--accent);
  text-decoration: none;
}

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 1rem;
}

.container--solutions {
  max-width: 100%;
  padding: 0;
}

/* ========== 导航：半透明悬浮在 banner 上，Tab 无背景仅下划线，整体居右 ========== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  width: 100%;
  height: var(--header-h);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: none;
  transition: background 0.3s;
}

.site-header.scrolled {
  background: rgba(0, 0, 0, 0.1);
}

/* 导航内容尽量贴边，仅保留最小左右留白 */
.header-inner {
  width: 100%;
  max-width: 100%;
  height: 100%;
  margin: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-direction: row;
  box-sizing: border-box;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: #fff;
  font-weight: 700;
  font-family: var(--font-title);
  flex-shrink: 0;
}

.logo-icon { 
  display: block;
  width: auto;
  max-width: 168px;
  object-fit: contain;
  flex-shrink: 0;
  margin-left: 1.25rem;
}
.logo-text {
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: #fff;
  display: block;
}
.logo-text-wrap {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  line-height: 1.35;
  gap: 0.05rem;
}
.logo-en {
  font-size: 0.6rem;
  font-weight: 400;
  letter-spacing: 0.12em;
  color: rgba(255, 255, 255, 0.9);
}


/* 首页时 logo 也显示选中态，与导航一致 */
.logo.active {
  color: #fff;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
  position: relative;
  align-items: center;
  justify-content: center;
}

.nav-toggle::before,
.nav-toggle::after {
  content: '';
  position: absolute;
  width: 20px;
  height: 2px;
  background: var(--accent);
  border-radius: 1px;
  transition: transform 0.3s;
}

.nav-toggle::before {
  transform: translateY(-4px);
}

.nav-toggle::after {
  transform: translateY(4px);
}

.nav-toggle.open::before {
  transform: translateY(0) rotate(45deg);
}

.nav-toggle.open::after {
  transform: translateY(0) rotate(-45deg);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  flex-wrap: wrap;
  margin-left: auto;
  line-height: var(--header-h);
}

.main-nav a {
  padding: 0 1rem;
  color: #fff;
  font-size: 0.95rem;
  border-radius: 0;
  position: relative;
  transition: color 0.25s;
  background: none !important;
  box-shadow: none !important;
  line-height: inherit;
  height: 100%;
  display: inline-flex;
  align-items: center;
}

.main-nav a::after {
  content: '';
  position: absolute;
  left: 1rem;
  right: 1rem;
  bottom: 0.35rem;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transition: transform 0.25s var(--ease-out-expo);
}

.main-nav a:hover {
  color: rgba(255, 255, 255, 0.95);
}

.main-nav a:hover::after {
  transform: scaleX(1);
}

/* 当前页选中：仅青绿下划线，无背景 */
.main-nav a.active,
#main-nav a.active {
  color: #fff !important;
  font-weight: 500;
}
.main-nav a.active::after,
#main-nav a.active::after {
  transform: scaleX(1) !important;
  height: 2px;
  background: var(--accent);
  box-shadow: none;
}

.main-nav a.nav-btn-login::after {
  display: none;
}

.main-nav a.nav-btn-login,
.nav-btn-login {
  margin-left: 0.75rem;
  padding: 0 1.35rem;
  background: #00d7a4 !important;
  color: #fff !important;
  font-weight: 400;
  border-radius: 0;
  height: 100%;
  align-self: stretch;
  display: inline-flex;
  align-items: center;
}

.main-nav a.nav-btn-login:hover,
.nav-btn-login:hover {
  background: #00e8b5 !important;
  color: #fff !important;
}

/* 移动端：顶部导航整体缩小，节省竖向空间 */
@media (max-width: 900px) {
  :root {
    --header-h: 56px;
  }

  .logo-icon {
    height: 32px;
    max-width: 140px;
    margin-left: 0.75rem;
  }

  .nav-toggle {
    display: flex;
    width: 38px;
    height: 38px;
  }

  .nav-toggle::before,
  .nav-toggle::after {
    width: 16px;
  }

  .nav-toggle::before {
    transform: translateY(-3px);
  }

  .nav-toggle::after {
    transform: translateY(3px);
  }

  .nav-toggle.open::before,
  .nav-toggle.open::after {
    transform: translateY(0) rotate(45deg);
  }

  .nav-toggle.open::after {
    transform: translateY(0) rotate(-45deg);
  }

  .main-nav {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    background: rgba(5, 8, 16, 0.98);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    padding: 1rem;
    gap: 0.25rem;
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: transform 0.3s, opacity 0.3s, visibility 0.3s;
  }

  .main-nav.open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .main-nav a {
    width: 100%;
    padding: 0.75rem 1rem;
    text-align: center;
  }
}

/* ========== Hero 首屏 ========== */
/* 首屏全宽贴边，无左右空白（设计图） */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  position: relative;
  padding: var(--header-h) 0 4rem;
  width: 100%;
}
.hero-content {
  padding-left: 1.25rem;
  padding-right: 1.25rem;
  padding-top: 7rem;
  max-width: 100%;
  box-sizing: border-box;
}

/* 核心产品页 Hero：整体内容偏左布局 */
.page-products .hero {
  align-items: flex-start;
}
.page-products #hero .hero-content {
  padding-left: 10%;
}

/* 解决方案页、技术实力页 Hero：内容左对齐，无入场动效 */
.page-solutions .hero,
.page-technology .hero {
  align-items: flex-start;
}
.page-solutions #hero .hero-content,
.page-technology #hero .hero-content {
  padding-top: 6rem;
  padding-left: 8%;
  text-align: left;
  max-width: 100%;
}
.page-solutions #hero .hero-label,
.page-technology #hero .hero-label {
  font-size: 2rem;
  color: #ffffff;
  margin: 0 0 0.75rem;
  white-space: nowrap;
}
.page-solutions #hero .hero-title,
.page-technology #hero .hero-title {
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 600;
  color: #ffffff;
  margin: 0 0 1rem;
  white-space: nowrap;
}
.page-solutions #hero .hero-desc,
.page-technology #hero .hero-desc {
  font-size: 1.5rem;
  color: #ffffff;
  margin: 0 0 2.5rem;
  white-space: nowrap;
}
.page-solutions #hero .hero-cta-wrap,
.page-technology #hero .hero-cta-wrap {
  justify-content: flex-start;
}
.page-solutions #hero .hero-cta,
.page-technology #hero .hero-cta {
  padding: 0.85rem 2.8rem;
  border-radius: 999px;
  background: transparent !important;
  border: 1px solid rgba(255,255,255,0.72);
  color: #ffffff !important;
  box-shadow: none;
  font-weight: 400;
}
.page-solutions #hero .hero-cta:hover,
.page-technology #hero .hero-cta:hover {
  background: rgba(255,255,255,0.16) !important;
  box-shadow: 0 8px 24px rgba(0,0,0,0.25);
}

/* 应用场景页 Hero：第一行大、第二行小，间距加大，内容居中 */
.page-scenarios .hero {
  align-items: center;
  text-align: center;
}
.page-scenarios #hero .hero-content {
  padding-top: 6rem;
  padding-left: 1.25rem;
  padding-right: 1.25rem;
  text-align: center;
  max-width: 100%;
}
.page-scenarios #hero .hero-label {
  font-size: clamp(2.25rem, 5vw, 3rem);
  font-weight: 600;
  color: #ffffff;
  margin: 0 0 1.25rem;
}
.page-scenarios #hero .hero-title {
  font-size: clamp(1.25rem, 2.5vw, 1.5rem);
  font-weight: 500;
  color: rgba(255, 255, 255, 0.95);
  margin: 0 0 3rem;
}
.page-scenarios #hero .hero-cta-wrap {
  justify-content: center;
}
.page-scenarios #hero .hero-cta {
  padding: 0.85rem 2.8rem;
  border-radius: 999px;
  background: transparent !important;
  border: 1px solid rgba(255,255,255,0.72);
  color: #ffffff !important;
  box-shadow: none;
  font-weight: 400;
}
.page-scenarios #hero .hero-cta:hover {
  background: rgba(255,255,255,0.16) !important;
  box-shadow: 0 8px 24px rgba(0,0,0,0.25);
}

.hero-bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  background-image: url('../image/bgc_1.jpg');
  background-size: cover;
  background-position: center;
}

/* 动态渐变背景（缓慢流动） */
.hero-bg-gradient {
  position: absolute;
  inset: -50%;
  background: radial-gradient(ellipse 80% 50% at 20% 40%, rgba(0, 215, 164, 0.12) 0%, transparent 50%),
              radial-gradient(ellipse 60% 80% at 80% 60%, rgba(0, 255, 204, 0.08) 0%, transparent 50%),
              radial-gradient(ellipse 70% 60% at 50% 80%, rgba(0, 215, 164, 0.06) 0%, transparent 45%);
  animation: gradientShift 18s ease-in-out infinite alternate;
}

@keyframes gradientShift {
  0% { transform: translate(0, 0) scale(1); opacity: 1; }
  100% { transform: translate(-5%, -3%) scale(1.1); opacity: 0.9; }
}

/* 浮动粒子 */
.hero-particles {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.hero-particles span {
  position: absolute;
  width: 4px;
  height: 4px;
  background: #fff;
  border-radius: 50%;
  opacity: 0.5;
  animation: floatParticle 12s ease-in-out infinite;
}

.hero-particles span:nth-child(1) { left: 10%; top: 20%; animation-delay: 0s; animation-duration: 14s; }
.hero-particles span:nth-child(2) { left: 25%; top: 70%; animation-delay: -2s; animation-duration: 11s; }
.hero-particles span:nth-child(3) { left: 45%; top: 40%; animation-delay: -4s; animation-duration: 13s; }
.hero-particles span:nth-child(4) { left: 60%; top: 80%; animation-delay: -1s; animation-duration: 15s; }
.hero-particles span:nth-child(5) { left: 75%; top: 25%; animation-delay: -3s; animation-duration: 12s; }
.hero-particles span:nth-child(6) { left: 88%; top: 55%; animation-delay: -5s; animation-duration: 10s; }
.hero-particles span:nth-child(7) { left: 15%; top: 85%; animation-delay: -2.5s; animation-duration: 16s; }
.hero-particles span:nth-child(8) { left: 50%; top: 10%; animation-delay: -1.5s; animation-duration: 11s; }
.hero-particles span:nth-child(9) { left: 82%; top: 70%; animation-delay: -4.5s; animation-duration: 14s; }
.hero-particles span:nth-child(10) { left: 30%; top: 45%; animation-delay: -3.5s; animation-duration: 13s; }

@keyframes floatParticle {
  0%, 100% { transform: translate(0, 0) scale(1); opacity: 0.3; }
  25% { transform: translate(15px, -20px) scale(1.2); opacity: 0.6; }
  50% { transform: translate(-10px, 15px) scale(0.9); opacity: 0.4; }
  75% { transform: translate(20px, 10px) scale(1.1); opacity: 0.5; }
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0, 215, 164, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 215, 164, 0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 50%, black, transparent);
  animation: gridPulse 8s ease-in-out infinite;
}

@keyframes gridPulse {
  0%, 100% { opacity: 0.8; }
  50% { opacity: 1; }
}

.hero-glow {
  position: absolute;
  width: 120%;
  height: 80%;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: radial-gradient(ellipse at center, var(--accent-glow) 0%, transparent 60%);
  opacity: 0.6;
}

.hero--glow .hero-glow {
  opacity: 0.85;
  background: radial-gradient(ellipse 80% 50% at 50% 50%, rgba(0, 215, 164, 0.2) 0%, transparent 55%);
}

/* 首屏标题：一根线 + 白色阴影，循环划过（用 left 做横穿，否则 2px 宽时 translateX 几乎不动） */
.hero-title::after {
  content: '';
  position: absolute;
  top: -10%;
  left: -5%;
  width: 2px;
  height: 140%;
  background: #fff;
  transform: skewX(-20deg);
  box-shadow: 0 0 8px 2px rgba(255,255,255,0.5), 0 0 20px 4px rgba(255,255,255,0.2);
  animation: heroTitleSweep 2s ease-in-out 1;
  animation-fill-mode: both;
  animation-delay: 0s;
  pointer-events: none;
}

@keyframes heroTitleSweep {
  0% { left: -5%; transform: skewX(-20deg); }
  100% { left: 105%; transform: skewX(-20deg); }
}

.hero-title--gradient {
  color: #fff;
  -webkit-text-fill-color: #fff;
  text-shadow: 0 0 40px rgba(255,255,255,0.15);
}

.hero-content {
  position: relative;
  z-index: 1;
}

/* Hero 入场动画（由 JS 添加 .hero-loaded 触发） */
.hero-anim {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.8s var(--ease-out-expo), transform 0.8s var(--ease-out-expo);
}

.hero-loaded .hero-anim {
  opacity: 1;
  transform: translateY(0);
}

.hero-anim[data-delay="0"] { transition-delay: 0.1s; }
.hero-anim[data-delay="150"] { transition-delay: 0.25s; }
.hero-anim[data-delay="300"] { transition-delay: 0.4s; }
.hero-anim[data-delay="450"] { transition-delay: 0.55s; }
.hero-anim[data-delay="600"] { transition-delay: 0.75s; }

.hero-cta--anim {
  transition: opacity 0.8s var(--ease-out-expo), transform 0.8s var(--ease-out-expo), box-shadow 0.3s, background 0.3s !important;
}

.hero-loaded .hero-cta--anim:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 12px 40px var(--accent-glow), 0 0 60px rgba(0, 215, 164, 0.2);
}

/* 设计图：顶部青绿色小字 */
.hero-label {
  font-size: 1.25rem;
  color: #00d7a4;
  margin: 0 0 0.5rem;
  font-weight: 400;
}
/* 设计图：副标题白色、未加粗 */
.hero-subtitle {
  font-family: var(--font-title);
  font-size: 1.63rem;
  letter-spacing: 0.05em;
  color: #fff;
  font-weight: 400;
  margin: 0 0 0.35rem;
  text-transform: none;
}
.hero-desc {
  font-size: 1.25rem;
  color: #fff;
  font-weight: 400;
  margin: 0 0 11.5rem;
}

.hero-title {
  position: relative;
  overflow: hidden;
  font-family: var(--font-title);
  font-size: clamp(2rem, 6vw, 3.5rem);
  font-weight: 700;
  line-height: 1.2;
  margin: 0 0 1rem;
  color: #fff;
  text-shadow: 0 0 40px rgba(255,255,255,0.12);
}

.hero-tagline {
  font-size: 0.95rem;
  color: rgba(255,255,255,0.9);
  max-width: 560px;
  margin: 0 auto 3rem;
}

.hero-cta {
  display: inline-block;
  padding: 0.9rem 2rem;
  background: linear-gradient(135deg, var(--accent), var(--accent-dim));
  color: #fff;
  font-weight: 600;
  font-family: var(--font-title);
  border-radius: 999px;
  border: none;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
}

.hero-cta:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 36px var(--accent-glow), 0 0 48px rgba(0, 215, 164, 0.15);
}

.hero-cta-wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
}
.hero-cta--outline {
  background: transparent !important;
  color: #fff !important;
  border: 2px solid var(--accent);
}
.hero-cta--outline:hover {
  background: rgba(0, 215, 164, 0.2) !important;
  color: #fff !important;
  border-color: var(--accent-dim);
}
/* 设计图：首页 Banner 按钮—圆角、左实心主题绿、右描边、文字未加粗 */
.hero .hero-cta {
  font-weight: 400;
  border-radius: 999px;
}
.hero .hero-cta:not(.hero-cta--outline) {
  background: #00d7a4 !important;
  border: none;
}
.hero .hero-cta:not(.hero-cta--outline):hover {
  background: #00e8b5 !important;
  box-shadow: 0 8px 24px rgba(0, 204, 102, 0.3);
}
.hero .hero-cta--outline {
  border-color: #00d7a4;
  color: #00d7a4 !important;
}
.hero .hero-cta--outline:hover {
  border-color: #00d7a4;
  background: rgba(0, 215, 164, 0.15) !important;
  color: #00d7a4 !important;
}
.section-alt .hero-cta { margin-top: 0.5rem; }

/* 首页 Hero CTA 按钮常驻微光（呼吸感） */
.page-index .hero-cta {
  animation: ctaGlow 4s ease-in-out infinite;
}

@keyframes ctaGlow {
  0%, 100% { box-shadow: 0 4px 20px rgba(0, 215, 164, 0.2); }
  50% { box-shadow: 0 6px 28px rgba(0, 215, 164, 0.35); }
}

/* 核心产品页 Hero：内容样式单独处理（两行大标题 + 淡色按钮） */
.page-products #hero .hero-content {
  padding-top: 6rem;
  text-align: left;
}
.page-products #hero .hero-title {
  font-size: clamp(2.3rem, 5vw, 3.25rem);
  font-weight: 600;
  color: #fff;
  text-shadow: none;
  margin: 0 0 1.25rem;
}
.page-products #hero .hero-title--gradient {
  -webkit-text-fill-color: #fff;
}
.page-products #hero .hero-subtitle {
  font-family: var(--font-title);
  font-size: clamp(2.1rem, 4.5vw, 3rem);
  font-weight: 600;
  letter-spacing: 0;
  color: #fff;
  margin: 0 0 2.5rem;
}
.page-products #hero .hero-cta-wrap {
  justify-content: flex-start;
}
.page-products #hero .hero-cta {
  padding: 0.85rem 2.4rem;
  border-radius: 999px;
  background: rgba(255,255,255,0.18) !important;
  border: 1px solid rgba(255,255,255,0.4);
  color: #fff !important;
  box-shadow: none;
}
.page-products #hero .hero-cta:hover {
  background: rgba(255,255,255,0.26) !important;
  box-shadow: 0 8px 24px rgba(0,0,0,0.28);
}

.hero-scroll {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  width: 24px;
  height: 40px;
  border: 2px solid var(--border);
  border-radius: 12px;
  animation: scrollHint 2s ease-in-out infinite;
}

.hero-scroll::before {
  content: '';
  position: absolute;
  top: 6px;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 8px;
  background: var(--accent);
  border-radius: 2px;
}

@keyframes scrollHint {
  0%, 100% { opacity: 0.4; transform: translateX(-50%) translateY(0); }
  50% { opacity: 1; transform: translateX(-50%) translateY(6px); }
}

/* ========== 首页：普通滚动（已去掉整屏切换） ========== */
.page-index {
  overflow-y: auto;
  overflow-x: hidden;
  scroll-padding-top: var(--header-h);
  -webkit-overflow-scrolling: touch;
}
.page-index .hero {
  min-height: 100vh;
  box-sizing: border-box;
}

/* 非首页子页 Banner 统一：高度 60%（60vh），与关于我们一致；无滚动提示、无入场滑动动画（仅首页保留） */
.page-products .hero,
.page-solutions .hero,
.page-technology .hero,
.page-scenarios .hero {
  min-height: 60vh;
  box-sizing: border-box;
}
/* 仅解决方案页：裁剪 Hero 内超宽元素（如 .hero-glow 120%），避免该页横向溢出 */
.page-solutions .hero {
  overflow-x: hidden;
}
.page-products .hero-scroll,
.page-solutions .hero-scroll,
.page-technology .hero-scroll,
.page-scenarios .hero-scroll {
  display: none;
}
.page-products .hero-anim,
.page-solutions .hero-anim,
.page-technology .hero-anim,
.page-scenarios .hero-anim {
  opacity: 1;
  transform: none;
  transition: none;
}
.page-products .hero-loaded .hero-anim,
.page-solutions .hero-loaded .hero-anim,
.page-technology .hero-loaded .hero-anim,
.page-scenarios .hero-loaded .hero-anim {
  opacity: 1;
  transform: none;
}
/* 非首页：标题去掉光标划过效果（.hero-title::after 的横线扫过动画） */
.page-products .hero-title::after,
.page-solutions .hero-title::after,
.page-technology .hero-title::after,
.page-scenarios .hero-title::after {
  display: none;
}
.page-index #products {
  padding-top: var(--header-h);
  padding-bottom: 3rem;
}
/* 最后一屏：呼吁区 + 页脚 */
/* 首页最后一屏容器 */
.page-index .page-index-last-screen {
  display: flex;
  flex-direction: column;
  padding-bottom: 0;
}
.page-index .page-index-last-screen .site-footer {
  margin-top: 0;
  padding: 2rem 0;
}
.page-index .page-index-last-screen .footer-bottom p { font-size: 0.85rem; }

/* 共建低空安全新生态：大图背景 + 居中文案（参考 figma .ecosystem） */
.page-index #cta.ecosystem {
  position: relative;
  width: 100%;
  margin: 0;
  height: 60vh;
  min-height: 520px;
  overflow: hidden;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: calc(var(--header-h) + 3rem);
  background: url('../image/bgc_3.png') center/cover no-repeat;
}
.page-index #cta.ecosystem::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(5, 8, 16, 0.3) 0%, rgba(5, 8, 16, 0.45) 60%, rgba(5, 8, 16, 0.5) 100%);
}
.ecosystem-content {
  position: relative;
  z-index: 1;
  text-align: center;
  width: min(50rem, 100% - 3rem);
}
.ecosystem-title {
  font-family: var(--font-title);
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 600;
  color: #fff;
  margin: 0 0 1rem;
}
.ecosystem-desc {
  font-size: 1.1rem;
  color: rgba(255, 255, 255, 0.9);
  margin: 0;
}

/* 一键到顶按钮：始终漂浮在视口右下角，滚动超过一屏后显示，否则隐藏 */
.back-to-top {
  position: fixed;
  right: 2rem;
  bottom: 2rem;
  width: 44px;
  height: 44px;
  z-index: 9999;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.25s ease, visibility 0.25s ease;
}
.back-to-top.is-visible {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}
.back-to-top::before,
.back-to-top::after {
  display: none;
}
.back-to-top:hover {
  opacity: 0.9;
}

/* 首页联系我们：白底 + 双电话按钮（复用 footer-cta 样式） */
.contact-home {
  padding: 3.5rem 0 3rem;
  background: #fff;
  background: url('../image/bgc_4.png') center/cover no-repeat!important;
}
.page-solutions .contact-home .container {
  max-width: 100%;
  padding-left: 3rem;
  padding-right: 3rem;
}
.contact-home .footer-cta {
  margin-bottom: 0;
}
/* 首页 联系我们：标题/描述颜色与行距微调，贴设计稿 */
.contact-home .footer-cta h3 {
  font-size: 1.5rem;
  font-weight: 600;
  color: #222;
  margin: 0 0 1.25rem;
}
.contact-home .container .footer-cta .section-sub {
  font-size: 0.95rem;
  color: #595b5e;
  margin-bottom: 3rem;
  line-height: 1.6;
}

/* ========== 内页通用 ========== */
.page-content {
  padding-top: calc(var(--header-h) + 2rem);
  padding-bottom: 3rem;
  min-height: 60vh;
}

/* 子页有独立 Banner 时，主内容区不再重复顶部留白 */
.page-products .page-content,
.page-solutions .page-content,
.page-technology .page-content,
.page-scenarios .page-content {
  padding-top: 4rem;
}

.page-scenarios .page-content {
  /* background: url('../image/scenarios/bgc_1.png') no-repeat center bottom;
  background-size: cover; */
}

.page-title {
  font-family: var(--font-title);
  font-size: clamp(1.5rem, 4vw, 2rem);
  font-weight: 600;
  color: var(--text);
  margin: 0 0 0.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border);
}

.page-lead {
  font-size: 1rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin: 0 0 2rem;
}

/* ========== 子页布局：空域管理 - 左右交替图+文 ========== */
.airspace-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: center;
  margin-bottom: 2rem;
}
.airspace-block--right { direction: rtl; }
.airspace-block--right > * { direction: ltr; }
.airspace-block--right .airspace-block__body { text-align: right; }
.airspace-block__media { border-radius: var(--radius); overflow: hidden; border: 1px solid var(--border); }
.airspace-block__media .section-img { width: 100%; aspect-ratio: 16/10; object-fit: cover; }
.airspace-block__body .section-title { margin-bottom: 0.75rem; }
.airspace-block__body p { color: var(--text-muted); margin: 0; font-size: 0.95rem; line-height: 1.7; }
@media (max-width: 768px) {
  .airspace-block, .airspace-block--right { grid-template-columns: 1fr; direction: ltr; }
  .airspace-block--right .airspace-block__body { text-align: left; }
  .airspace-block__media { order: -1; }
}

/* ========== 子页布局：航线规划 - 时间轴 ========== */
.route-timeline { position: relative; padding: 1rem 0 2rem; }
.route-timeline__line {
  position: absolute;
  left: 1.5rem;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--accent), transparent);
  opacity: 0.5;
}
.route-step { position: relative; padding-left: 4rem; margin-bottom: 2.5rem; }
.route-step:last-child { margin-bottom: 0; }
.route-step__num {
  position: absolute;
  left: 0;
  top: 0.25rem;
  width: 3rem;
  height: 2rem;
  line-height: 2rem;
  font-family: var(--font-title);
  font-size: 0.9rem;
  color: var(--accent);
  text-align: center;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-card);
}
.route-step__card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.route-step__card--shine:hover { border-color: rgba(0, 215, 164, 0.4); box-shadow: 0 0 20px var(--accent-glow); }
.route-step__card .section-title { margin-bottom: 0.75rem; }
.route-step__card .media-block { margin-top: 1rem; }
@media (max-width: 600px) {
  .route-timeline__line { left: 1rem; }
  .route-step { padding-left: 3rem; }
  .route-step__num { width: 2.5rem; font-size: 0.8rem; }
}

/* 解决方案页：四大系统横向轮播（Swiper） */
.page-solutions .solutions-swiper {
  position: relative;
  margin-top: 2rem;
}

.page-solutions .solutions-swiper .swiper-wrapper {
  align-items: stretch;
}

.page-solutions .solutions-swiper .swiper-slide {
  width: min(100%, 960px);
}

.page-solutions .solutions-swiper-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 40px;
  height: 40px;
  border-radius: 999px;
  border: 1px solid rgba(148, 163, 184, 0.6);
  background: radial-gradient(circle at 30% 30%, rgba(148, 163, 184, 0.5), rgba(15, 23, 42, 0.95));
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: #e2e8f0;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.45);
  z-index: 10;
}

.page-solutions .solutions-swiper-nav--prev {
  left: -20px;
}

.page-solutions .solutions-swiper-nav--next {
  right: -20px;
}

.page-solutions .solutions-swiper-nav[aria-disabled="true"] {
  opacity: 0.35;
  cursor: default;
  box-shadow: none;
}

.page-solutions .solutions-swiper-pagination {
  margin-top: 1.5rem;
}

.page-solutions .solutions-swiper-pagination .swiper-pagination-bullet {
  background: rgba(148, 163, 184, 0.6);
  opacity: 1;
}

.page-solutions .solutions-swiper-pagination .swiper-pagination-bullet-active {
  background: var(--accent);
}

/* ========== 子页布局：飞行服务 - 竖条卡片 ========== */
.flight-card { position: relative; padding: 1.5rem 1.5rem 1.5rem 2rem; margin-bottom: 1.5rem; border-radius: var(--radius); border: 1px solid var(--border); }
.flight-card__bar {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  border-radius: var(--radius) 0 0 var(--radius);
}
.flight-card--green .flight-card__bar { background: linear-gradient(180deg, #22c55e, #16a34a); }
.flight-card--cyan .flight-card__bar { background: linear-gradient(180deg, var(--accent), var(--accent-dim)); }
.flight-card--warn .flight-card__bar { background: linear-gradient(180deg, #eab308, #ca8a04); }
.flight-card .section-title { margin-bottom: 0.5rem; }
.flight-card p { color: var(--text-muted); margin: 0 0 1rem; font-size: 0.95rem; }
.warning-cards { display: flex; flex-direction: column; gap: 0.75rem; margin-bottom: 1rem; }
.warning-card { padding: 0.75rem 1rem; background: rgba(0,0,0,0.2); border-radius: var(--radius); border: 1px solid var(--border); font-size: 0.9rem; color: var(--text-muted); }
.warning-level { display: inline-block; margin-right: 0.5rem; font-family: var(--font-title); font-size: 0.8rem; color: var(--accent); }

/* ========== 通用布局扩展：多种结构 ========== */
/* Bento：不对称网格，一大多小 */
.layout-bento {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-template-rows: auto auto;
  gap: 1rem;
}
.layout-bento__main { grid-column: span 2; grid-row: span 2; }
.layout-bento__cell { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.25rem; }
@media (max-width: 900px) {
  .layout-bento { grid-template-columns: 1fr 1fr; }
  .layout-bento__main { grid-column: span 2; grid-row: span 1; }
}
@media (max-width: 560px) {
  .layout-bento { grid-template-columns: 1fr; }
  .layout-bento__main { grid-column: span 1; }
}

/* Split：左右分栏，可反序 */
.layout-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: center;
}
.layout-split--reverse { direction: rtl; }
.layout-split--reverse > * { direction: ltr; }
.layout-split__media { border-radius: var(--radius); overflow: hidden; border: 1px solid var(--border); }
.layout-split__body .section-title { margin-bottom: 0.75rem; }
@media (max-width: 768px) {
  .layout-split, .layout-split--reverse { grid-template-columns: 1fr; direction: ltr; }
  .layout-split__media { order: -1; }
}

/* Highlight：一大块 + 右侧/下方列表 */
.layout-highlight {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 1.5rem;
  align-items: start;
}
.layout-highlight__feature { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.5rem; }
.layout-highlight__list { display: flex; flex-direction: column; gap: 0.75rem; }
.layout-highlight__list .item { padding: 0.75rem; background: rgba(0, 215, 164, 0.06); border: 1px solid var(--border); border-radius: var(--radius); font-size: 0.9rem; color: var(--text-muted); }
@media (max-width: 768px) {
  .layout-highlight { grid-template-columns: 1fr; }
}

/* Stack：阶梯式卡片叠放 */
.layout-stack { position: relative; padding: 2rem 0; }
.layout-stack__card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin-bottom: 1rem;
  margin-left: 0;
  box-shadow: 0 4px 20px rgba(0,0,0,0.2);
  transition: transform 0.2s, box-shadow 0.2s;
}
.layout-stack__card:nth-child(1) { margin-left: 0; }
.layout-stack__card:nth-child(2) { margin-left: 1.5rem; }
.layout-stack__card:nth-child(3) { margin-left: 3rem; }
.layout-stack__card:hover { transform: translateX(4px); box-shadow: 0 6px 24px rgba(0,0,0,0.25); }
@media (max-width: 768px) {
  .layout-stack__card:nth-child(2), .layout-stack__card:nth-child(3) { margin-left: 0; }
}

.layout-bento__cell .goal-num { display: block; font-family: var(--font-title); font-size: 0.8rem; color: var(--accent); margin-bottom: 0.5rem; }
.layout-bento__cell h3 { font-size: 1.1rem; color: var(--text); margin: 0 0 0.5rem; }
.layout-bento__cell h4 { font-size: 1rem; color: var(--text); margin: 0 0 0.35rem; }
.layout-bento__cell p { font-size: 0.9rem; color: var(--text-muted); margin: 0; line-height: 1.6; }
.layout-split__body p { color: var(--text-muted); margin: 0; line-height: 1.7; }
.layout-split__media .section-img { width: 100%; aspect-ratio: 16/10; object-fit: cover; }

/* ========== 核心产品（设计图：白底、2x2 卡、白底绿边圆角按钮） ========== */
.section-services {
  background: var(--bg-dark);
  padding: 4rem 0;
}
/* 设计图：核心产品区为浅色背景 */
.section-services.section--light {
  background: var(--section-bg-light);
}
/* 核心产品区：主标题块与分组标题的上下间距、字号 */
.section-services .section-head {
  margin-bottom: 2.25rem;
}
.section-services .section-head .section-title {
  font-size: clamp(1.75rem, 4vw, 2.35rem);
  margin-bottom: 0.75rem;
}
.section-services .products-layer-sub,
.section-services .section-head .section-sub {
  font-size: 1.05rem;
  color: var(--text-muted-on-light);
  max-width: 100%;
  margin-top: 0.75rem;
  margin-bottom: 0;
}
.section-services .section-title--block {
  font-size: 1.95rem;
  font-weight: 700;
  color: var(--text-on-light-dark);
  text-align: center;
  margin: 0 0 3rem;
}
.section-services .section-title--block-next {
  margin-top: 3.5rem;
  margin-bottom: 3rem;
}

.section-sub {
  max-width: 640px;
  margin: 0.5rem auto;
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

@media (max-width: 900px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 560px) {
  .services-grid { grid-template-columns: 1fr; }
}

.service-card {
  min-height: 14rem;
  display: flex;
  flex-direction: column;
  background: linear-gradient(145deg, rgba(15, 20, 40, 0.9) 0%, rgba(10, 14, 39, 0.95) 100%);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  color: inherit;
  position: relative;
  overflow: hidden;
  transition: border-color 0.4s, transform 0.4s var(--ease-out-back), box-shadow 0.4s;
}

.service-card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(135deg, transparent 30%, rgba(0, 215, 164, 0.4) 50%, transparent 70%);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity 0.4s;
}

.service-card:hover {
  border-color: rgba(0, 215, 164, 0.5);
  transform: translateY(-8px) scale(1.02);
  box-shadow: 0 20px 48px rgba(0, 0, 0, 0.4), 0 0 40px rgba(0, 215, 164, 0.15);
}

.service-card:hover::before {
  opacity: 1;
  animation: borderGlow 2s linear infinite;
}

.service-card--glow:hover {
  box-shadow: 0 20px 48px rgba(0, 0, 0, 0.4), 0 0 50px var(--accent-glow), 0 0 80px rgba(0, 215, 164, 0.1);
}

/* 应用场景页：每张卡片背景图 + 轻遮罩，文字加阴影保证可读 */
.scenario-bg {
  background-size: cover !important;
  background-position: center !important;
}
.scenario-bg h3,
.scenario-bg p {
  text-shadow: 0 1px 3px rgba(0,0,0,0.6), 0 0 20px rgba(0,0,0,0.4);
}

/* 首页应用场景：6 张图 2 行 3 列，标题白字叠在图左下角（设计图） */
.services-grid--scenario {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}
.services-grid--scenario .service-card {
  min-height: 220px;
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: flex-start;
  padding: 1.25rem 1.25rem 0;
  text-align: left;
}
.services-grid--scenario .service-card h3 {
  position: relative;
  margin: 0 0 0.5rem;
  padding: 0;
  font-size: 1.1rem;
  font-weight: 600;
  color: #fff !important;
  text-shadow: 0 1px 4px rgba(0,0,0,0.6);
}
.services-grid--scenario .service-card p {
  position: relative;
  margin: 0;
  padding: 0;
  font-size: 0.85rem;
  line-height: 1.5;
  color: rgba(255,255,255,0.92) !important;
  text-shadow: 0 1px 3px rgba(0,0,0,0.5);
  max-width: 100%;
}
@media (max-width: 768px) {
  .services-grid--scenario { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 480px) {
  .services-grid--scenario { grid-template-columns: 1fr; }
}

/* 应用场景子页：3-2-3-2 交替布局，卡片增高 */
.services-grid--scenario-3-2 {
  grid-template-columns: repeat(6, 1fr);
  gap: 1.25rem;
}
.services-grid--scenario-3-2 .service-card {
  min-height: 300px;
}
/* 每行 3 张：第 1、2、3、6、7、8、11、12、13 张 */
.services-grid--scenario-3-2 .service-card:nth-child(5n+1) { grid-column: 1 / 3; }
.services-grid--scenario-3-2 .service-card:nth-child(5n+2) { grid-column: 3 / 5; }
.services-grid--scenario-3-2 .service-card:nth-child(5n+3) { grid-column: 5 / 7; }
/* 每行 2 张：第 4、5、9、10、14、15 张 */
.services-grid--scenario-3-2 .service-card:nth-child(5n+4) { grid-column: 1 / 4; }
.services-grid--scenario-3-2 .service-card:nth-child(5n+5) { grid-column: 4 / 7; }
@media (max-width: 900px) {
  .services-grid--scenario-3-2 {
    grid-template-columns: repeat(2, 1fr);
  }
  .services-grid--scenario-3-2 .service-card:nth-child(5n+1),
  .services-grid--scenario-3-2 .service-card:nth-child(5n+2),
  .services-grid--scenario-3-2 .service-card:nth-child(5n+3),
  .services-grid--scenario-3-2 .service-card:nth-child(5n+4),
  .services-grid--scenario-3-2 .service-card:nth-child(5n+5) {
    grid-column: auto;
  }
}
@media (max-width: 480px) {
  .services-grid--scenario-3-2 { grid-template-columns: 1fr; }
  .services-grid--scenario-3-2 .service-card { min-height: 240px; }
}

.scenario-bg .service-card-icon {
  box-shadow: 0 0 12px rgba(0,0,0,0.3);
}
.scenario-bg-1 { background-image: url(../image/scenarios/scenario-01.jpg); }
.scenario-bg-2 { background-image: url(../image/scenarios/scenario-02.jpg); }
.scenario-bg-3 { background-image: url(../image/scenarios/scenario-03.jpg); }
.scenario-bg-4 { background-image: url(../image/scenarios/scenario-04.jpg); }
.scenario-bg-5 { background-image: url(../image/scenarios/scenario-05.jpg); }
.scenario-bg-6 { background-image: url(../image/scenarios/scenario-06.jpg); }
.scenario-bg-7 { background-image: url(../image/scenarios/scenario-07.jpg); }
.scenario-bg-8 { background-image: url(../image/scenarios/scenario-08.jpg); }
.scenario-bg-9 { background-image: url(../image/scenarios/scenario-09.jpg); }
.scenario-bg-10 { background-image: url(../image/scenarios/scenario-10.jpg); }
.scenario-bg-11 { background-image: url(../image/scenarios/scenario-11.jpg); }
.scenario-bg-12 { background-image: url(../image/scenarios/scenario-12.jpg); }
.scenario-bg-13 { background-image: url(../image/scenarios/scenario-13.jpg); }
.scenario-bg-14 { background-image: url(../image/scenarios/scenario-14.jpg); }
.scenario-bg-15 { background-image: url(../image/scenarios/scenario-15.jpg); }

/* 应用场景子页：卡片上图下文、白底、浅阴影（设计图 5×3 网格） */
.service-card--img-top {
  display: block;
  padding: 0;
  min-height: 0;
  background: #fff !important;
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: var(--radius);
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
  overflow: hidden;
  transition: box-shadow 0.3s, transform 0.3s;
  color: inherit;
}
.service-card--img-top:hover {
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
  transform: translateY(-4px);
}
.service-card--img-top::before { display: none; }
.service-card--img-top .service-card-img {
  display: block;
  width: 100%;
  padding-bottom: 56.25%;
  background-size: cover !important;
  background-position: center !important;
  background-color: var(--bg-dark);
}
.service-card--img-top .service-card-body {
  display: block;
  padding: 1rem 1.25rem 1.25rem;
  text-align: left;
}
.service-card--img-top .service-card-body h3 {
  font-size: 1.1rem;
  font-weight: 600;
  color: #111;
  margin: 0 0 0.5rem;
}
.service-card--img-top .service-card-body p {
  font-size: 0.9rem;
  color: #595b5e;
  line-height: 1.55;
  margin: 0;
}
.services-grid--scenario-page {
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}
@media (max-width: 768px) {
  .services-grid--scenario-page { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 480px) {
  .services-grid--scenario-page { grid-template-columns: 1fr; }
}

@keyframes borderGlow {
  0% { opacity: 0.6; }
  50% { opacity: 1; }
  100% { opacity: 0.6; }
}

.service-card .service-card-icon {
  transition: transform 0.4s var(--ease-out-back), background 0.3s;
}

.service-card:hover .service-card-icon {
  transform: scale(1.1);
  background: rgba(0, 215, 164, 0.2);
}

.service-card-icon {
  display: inline-block;
  width: 44px;
  height: 44px;
  line-height: 44px;
  text-align: center;
  font-family: var(--font-title);
  font-size: 0.7rem;
  color: var(--accent);
  background: rgba(0, 215, 164, 0.12);
  border-radius: var(--radius);
  margin-bottom: 0.75rem;
}

.service-card h3 {
  font-size: 1.1rem;
  color: var(--text);
  margin: 0 0 0.5rem;
}

.service-card p {
  font-size: 0.9rem;
  color: #fff;
  line-height: 1.55;
  margin: 0 0 1rem;
  flex: 1;
}

.service-card-link {
  font-size: 0.85rem;
  color: var(--accent);
  margin-top: auto;
}

.service-card:hover .service-card-link { text-decoration: underline; }

/* 区块光效（子页） */
.block-glow {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  margin-bottom: 2rem;
  transition: box-shadow 0.25s, border-color 0.25s;
}

.block-glow:hover {
  border-color: rgba(0, 215, 164, 0.3);
  box-shadow: 0 0 20px rgba(0, 215, 164, 0.08);
}

.block-glow .section-title { margin-bottom: 1rem; }

.block-glow p { color: var(--text-muted); margin: 0 0 1rem; }

/* 建设目标 inline（首页） */
.goals--inline { margin-top: 0; }
.goals--inline .goals-grid { margin-top: 0; }
/* 首页、技术实力页技术优势：三列网格（无 .goals-grid 包裹时直接子元素成网格） */
.page-index .goals.goals--inline,
.page-technology .goals.goals--inline {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}
@media (max-width: 768px) {
  .page-index .goals.goals--inline,
  .page-technology .goals.goals--inline { grid-template-columns: 1fr; }
}

/* 技术实力页：主内容区为白底，标题与副标题使用深色 */
.page-technology .page-content .section-head .section-title {
  color: #111;
}
.page-technology .page-content .section-head .section-sub {
  color: #595b5e;
}

/* 应用场景页：主内容区为白底，标题与副标题使用深色 */
.page-scenarios .page-content .section-head .section-title {
  color: #111;
}
.page-scenarios .page-content .section-head .section-sub {
  color: #595b5e;
}

.goal-item--glow {
  transition: transform 0.35s var(--ease-out-back), box-shadow 0.35s, border-color 0.35s;
}

.goal-item--glow:hover {
  border-color: rgba(0, 215, 164, 0.45);
  transform: translateY(-4px) scale(1.02);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.25), 0 0 24px var(--accent-glow);
}

.goal-item--glow .goal-num,
.goal-item--glow .goal-icon {
  transition: transform 0.35s var(--ease-out-back);
}

.goal-item--glow:hover .goal-num {
  transform: scale(1.15);
}

.tech-base-item--glow:hover {
  border-color: rgba(0, 215, 164, 0.4);
  box-shadow: 0 0 18px var(--accent-glow);
}

.tech-base-item h3 {
  font-size: 1rem;
  color: var(--text);
  margin: 0 0 0.5rem;
}

.control-item--glow:hover {
  border-color: rgba(0, 215, 164, 0.5);
  box-shadow: 0 0 24px var(--accent-glow);
}

.list-feature {
  margin: 0 0 1rem;
  padding-left: 1.25rem;
  color: var(--text-muted);
  line-height: 1.8;
}

/* ========== 通用区块 ========== */
.section {
  padding: 4rem 0;
  position: relative;
}

.contact-bgc {
  background: url('../image/bgc_4.png') center/cover no-repeat!important;
}

.section--dark { background: var(--bg-dark); }

/* 设计图：内容区浅灰底 + 深色字 */
.section--light {
  background: var(--section-bg-light);
}
.section--light--solutions {
  background: var(--section-bg-light-solutions);
  padding: 2.25rem 0;
}
.section--light .section-title,
.section--light .section-sub,
.section--light h2,
.section--light h3,
.section--light h4,
.section--light p,
.section--light .product-card h3,
.section--light .product-card p,
.section--light .goal-item h4,
.section--light .goal-item p,
.section--light .solution-module__body .section-title,
.section--light .solution-module__body p,
.section--light .service-card h3,
.section--light .service-card p {
  color: var(--text-on-light);
}
.section--light .section-sub,
.section--light .goal-item p,
.section--light .solution-module__body p,
.section--light .product-card p,
.section--light .service-card p {
  color: var(--text-muted-on-light);
}
.section--light .goal-num,
.section--light .product-card-link,
.section--light .solution-features span {
  color: var(--accent);
}
.section--light .solution-features .solution-feature-label {
  color: #333;
}
.section--light .product-card,
.section--light .goal-item {
  background: #fff;
  border: 1px solid rgba(0, 0, 0, 0.08);
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
}
/* .section--light .product-card:hover,
.section--light .goal-item:hover {
  border-color: rgba(0, 215, 164, 0.35);
  box-shadow: 0 8px 24px rgba(0, 215, 164, 0.12);
} */
.section--light .section-title--small {
  color: var(--text-on-light);
}

/* 首页设计图：浅色区结构与文字样式统一（标题居中） */
.page-index .section--light .section-head {
  text-align: center;
  margin-bottom: 3.6rem;
}
.page-index .section--light .section-title {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--text-on-light);
  margin: 0;
  letter-spacing: 0.02em;
}
.page-index .section--light .section-sub {
  font-size: 1.25rem;
  color: var(--text-muted-on-light);
  margin: 0.5rem 0 0;
  max-width: 100%;
  line-height: 1.65;
}
.page-index .section--light .section-title--small {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-on-light);
  margin: 2rem 0 1rem;
  text-align: center;
}
.page-index .section--light .product-card h3 {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-on-light);
}
.page-index .section--light .product-card p {
  font-size: 0.9375rem;
  line-height: 1.65;
  color: var(--text-muted-on-light);
}
.page-index .section--light .goal-num,
.page-index .section--light .goal-icon {
  color: var(--accent);
}
.page-index .section--light .goal-item h4 {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-on-light);
}
.page-index .section--light .goal-item p {
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--text-muted-on-light);
}
/* 技术优势：白底，下方三项无卡片样式 */
#advantages {
  background: #fff;
}
#advantages .goal-item {
  background: transparent;
  border: none;
  box-shadow: none;
  padding: 1rem 0.5rem;
}
#advantages .goal-item:hover {
  border-color: transparent;
  box-shadow: none;
  transform: none;
}
#advantages .goal-item--glow:hover {
  transform: none;
}
/* #advantages .goal-item--glow:hover .goal-icon {
  transform: scale(1.05);
  box-shadow: 0 0 12px var(--accent-glow);
} */
.page-index .section--light .solution-module__body .section-title {
  font-size: 1.375rem;
  font-weight: 700;
  color: var(--text-on-light);
}
.page-index .section--light .solution-module__body p {
  font-size: 0.9375rem;
  line-height: 1.65;
  color: var(--text-muted-on-light);
}
.page-index .section--light .service-card h3 {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-on-light);
}
.page-index .section--light .service-card p {
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--text-muted-on-light);
}
/* 应用场景：图上叠加白色标题与描述（设计图） */
.page-index .section--light .service-card.scenario-bg h3 {
  color: #fff !important;
  text-shadow: 0 1px 4px rgba(0,0,0,0.5), 0 0 20px rgba(0,0,0,0.3);
}
.page-index .section--light .service-card.scenario-bg p {
  color: rgba(255,255,255,0.92) !important;
  text-shadow: 0 1px 3px rgba(0,0,0,0.5);
}
/* 应用场景子页：与首页一致，整卡背景图 + 白字叠在底部 */
.page-scenarios .section--light .service-card.scenario-bg h3 {
  color: #fff !important;
  text-shadow: 0 1px 4px rgba(0,0,0,0.5), 0 0 20px rgba(0,0,0,0.3);
}
.page-scenarios .section--light .service-card.scenario-bg p {
  color: rgba(255,255,255,0.92) !important;
  text-shadow: 0 1px 3px rgba(0,0,0,0.5);
}
.page-scenarios #scenarios {
  background: #fff;
  padding-bottom: 3rem;
}
/* 应用场景区：标题居中，「查看全部」在右侧 */
/* 应用场景：标题、描述居中，查看全部在描述下方且居右，横线在图片上方 */
.page-index .section--light#scenarios .section-head--scenarios {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  margin-bottom: 0;
  width: 100%;
}
.page-index .section--light#scenarios .section-head--scenarios .section-title { margin: 0; }
.page-index .section--light#scenarios .section-head--scenarios .section-sub {
  margin: 0.5rem 0 0;
}
.page-index .section--light#scenarios .section-head--scenarios .scenarios-more-link {
  display: inline-block;
  align-self: flex-end;
  margin-top: 1rem;
  font-size: 16px;
  font-weight: 400;
  color: #333;
  text-decoration: none;
}
.page-index .section--light#scenarios .section-head--scenarios .scenarios-more-link:hover {
  color: #333;
  text-decoration: underline;
}
.scenarios-divider {
  width: 100%;
  height: 0;
  border-top: 1px solid rgba(0, 0, 0, 0.08);
  margin: 1.5rem 0 1.5rem;
}
.page-index #scenarios .container {
  max-width: 1300px;
  margin-left: auto;
  margin-right: auto;
}
.page-index #scenarios {
  background: #fff;
  padding-bottom: 3rem;
}
/* 上排 3 张等宽，下排 2 张各占满一半宽度（占满整行） */
.services-grid--5 {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 1rem;
}
.services-grid--5 .service-card:nth-child(1) { grid-column: 1 / 3; min-height: 200px; }
.services-grid--5 .service-card:nth-child(2) { grid-column: 3 / 5; min-height: 200px; }
.services-grid--5 .service-card:nth-child(3) { grid-column: 5 / 7; min-height: 200px; }
.services-grid--5 .service-card:nth-child(4) { grid-column: 1 / 4; min-height: 260px; }
.services-grid--5 .service-card:nth-child(5) { grid-column: 4 / 7; min-height: 260px; }
.services-grid--scenario .service-card {
  min-height: 200px;
}
/* 应用场景子页 3-2 布局：覆盖上面的 200px，保证高度生效 */
.services-grid--scenario.services-grid--scenario-3-2 .service-card {
  min-height: 300px;
}
@media (max-width: 900px) {
  .services-grid--5 {
    grid-template-columns: repeat(2, 1fr);
  }
  .services-grid--5 .service-card:nth-child(1),
  .services-grid--5 .service-card:nth-child(2),
  .services-grid--5 .service-card:nth-child(3),
  .services-grid--5 .service-card:nth-child(4),
  .services-grid--5 .service-card:nth-child(5) {
    grid-column: auto;
    min-height: 220px;
  }
}
.page-index .section--light .solution-module { border-bottom-color: rgba(0, 215, 164, 0.15); }

.section-dark {
  background: var(--bg-dark);
}

.section-alt {
  background: var(--bg-alt);
}

.section-head {
  margin-bottom: 2.5rem;
  text-align: center;
}

.section-num {
  display: block;
  font-family: var(--font-title);
  font-size: 0.85rem;
  letter-spacing: 0.2em;
  color: var(--accent);
  margin-bottom: 0.25rem;
}

.section-title {
  font-family: var(--font-title);
  font-size: clamp(1.5rem, 4vw, 2rem);
  font-weight: 600;
  color: #111;
  margin: 0;
}

.section-title small {
  display: block;
  font-family: var(--font-body);
  font-size: 0.75em;
  font-weight: 400;
  color: var(--text-muted);
  margin-top: 0.25rem;
}

.section-title--small {
  font-size: 1.1rem;
  margin-bottom: 1rem;
  margin-top: 0;
}

.media-block {
  margin-top: 2rem;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
}

.section-img {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
}

/* ========== 01 愿景 ========== */
.vision-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.vision-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  position: relative;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.vision-card:hover {
  border-color: rgba(0, 215, 164, 0.4);
  box-shadow: 0 0 24px var(--accent-glow);
}

.vision-card--highlight {
  border-color: rgba(0, 215, 164, 0.35);
}

.vision-card h3 {
  font-family: var(--font-title);
  font-size: 1.1rem;
  color: var(--accent);
  margin: 0 0 0.75rem;
}

.vision-card ul {
  margin: 0;
  padding-left: 1.25rem;
  color: var(--text-muted);
  font-size: 0.95rem;
}

.vision-card li {
  margin-bottom: 0.35rem;
}

.goals {
  margin-top: 2.5rem;
}

.goals-title {
  font-family: var(--font-title);
  font-size: 1.1rem;
  color: var(--text);
  text-align: center;
  margin: 0 0 1.5rem;
}

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

@media (max-width: 768px) {
  .goals-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.goal-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  text-align: center;
  transition: border-color 0.2s;
}

.goal-item:hover {
  border-color: rgba(0, 215, 164, 0.4);
}

.goal-num {
  display: block;
  font-family: var(--font-title);
  font-size: 0.8rem;
  color: var(--accent);
  margin-bottom: 0.5rem;
}

/* 首页技术优势：大号青绿圆形图标（设计图） */
.goal-icon {
  display: block;
  width: 56px;
  height: 56px;
  margin: 0 auto 1rem;
  /* border-radius: 50%; */
  /* background: rgba(0, 215, 164, 0.12); */
  /* border: 2px solid var(--accent); */
  flex-shrink: 0;
  transition: transform 0.35s var(--ease-out-back), box-shadow 0.3s;
}
/* .goal-item--glow:hover .goal-icon {
  transform: scale(1.1);
  box-shadow: 0 0 20px var(--accent-glow);
} */

.goal-item h4 {
  font-size: 1rem;
  margin: 0 0 0.35rem;
  color: var(--text);
}

.goal-item p {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin: 0;
}

/* ========== 02 方案价值 ========== */
.value-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-bottom: 2rem;
}

@media (max-width: 900px) {
  .value-cards {
    grid-template-columns: 1fr;
  }
}

.value-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color 0.2s, transform 0.2s;
}

.value-card:hover {
  border-color: rgba(0, 215, 164, 0.4);
  transform: translateY(-2px);
}

.value-card-inner {
  padding: 1.5rem;
}

.value-num {
  display: inline-block;
  font-family: var(--font-title);
  font-size: 0.85rem;
  color: var(--accent);
  margin-bottom: 0.5rem;
}

.value-card h3 {
  font-size: 1.05rem;
  color: var(--text);
  margin: 0 0 0.75rem;
}

.value-card ul {
  margin: 0;
  padding-left: 1.25rem;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.value-card li {
  margin-bottom: 0.35rem;
}

/* ========== 03 飞得起来 ========== */
.feature-list {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.feature-item {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: center;
}

.feature-item--reverse {
  direction: rtl;
}

.feature-item--reverse > * {
  direction: ltr;
}

.feature-item--reverse .feature-body {
  text-align: right;
}

.feature-item--reverse .feature-tags {
  justify-content: flex-end;
}

@media (max-width: 768px) {
  .feature-item,
  .feature-item--reverse {
    grid-template-columns: 1fr;
    direction: ltr;
    gap: 1rem;
  }

  .feature-item--reverse .feature-body,
  .feature-item--reverse .feature-tags {
    text-align: left;
    justify-content: flex-start;
  }

  .feature-media {
    order: -1;
  }
}

.feature-media {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
}

.feature-media img {
  width: 100%;
  aspect-ratio: 16/10;
  object-fit: cover;
}

.feature-body h3 {
  font-family: var(--font-title);
  font-size: 1.2rem;
  color: var(--text);
  margin: 0 0 0.5rem;
}

.feature-body h3 span {
  display: block;
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 400;
  color: var(--text-muted);
  margin-top: 0.25rem;
}

.feature-body p {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin: 0 0 0.75rem;
}

.feature-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  list-style: none;
  padding: 0;
  margin: 0;
}

.feature-tags li {
  padding: 0.25rem 0.6rem;
  background: rgba(0, 215, 164, 0.1);
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 0.8rem;
  color: var(--accent-dim);
}

.tech-base {
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
}

.tech-base h3 {
  font-family: var(--font-title);
  font-size: 1.1rem;
  color: var(--accent);
  text-align: center;
  margin: 0 0 1.5rem;
}

.tech-base-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

@media (max-width: 768px) {
  .tech-base-grid {
    grid-template-columns: 1fr;
  }
}

.tech-base-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
}

.tech-base-item h4 {
  font-size: 1rem;
  color: var(--text);
  margin: 0 0 0.5rem;
}

.tech-base-item p {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin: 0;
}

/* ========== 04 飞得安全 ========== */
.safe-blocks {
  margin-bottom: 2rem;
}

.safe-block {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}

.safe-block h3 {
  font-size: 1.1rem;
  color: var(--accent);
  margin: 0 0 0.5rem;
}

.safe-block p {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin: 0;
}

.warning-system {
  margin-top: 2rem;
}

.warning-system h3 {
  font-family: var(--font-title);
  font-size: 1.1rem;
  color: var(--text);
  text-align: center;
  margin: 0 0 1.5rem;
}

.warning-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

@media (max-width: 768px) {
  .warning-cards {
    grid-template-columns: 1fr;
  }
}

.warning-card {
  border-radius: var(--radius);
  padding: 1.25rem;
  border: 1px solid var(--border);
}

.warning-card--1 {
  border-left: 3px solid #22c55e;
  background: rgba(34, 197, 94, 0.05);
}

.warning-card--2 {
  border-left: 3px solid #eab308;
  background: rgba(234, 179, 8, 0.05);
}

.warning-card--3 {
  border-left: 3px solid #ef4444;
  background: rgba(239, 68, 68, 0.05);
}

.warning-level {
  display: block;
  font-family: var(--font-title);
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 0.35rem;
}

.warning-card--1 .warning-level { color: #22c55e; }
.warning-card--2 .warning-level { color: #eab308; }
.warning-card--3 .warning-level { color: #ef4444; }

.warning-card p {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin: 0 0 0.5rem;
}

.warning-card ul {
  margin: 0;
  padding-left: 1rem;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.warning-card li {
  margin-bottom: 0.25rem;
}

/* ========== 05 随时可飞 ========== */
.anytime-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin-bottom: 2rem;
}

@media (max-width: 600px) {
  .anytime-grid {
    grid-template-columns: 1fr;
  }
}

.anytime-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  transition: border-color 0.2s;
}

.anytime-card:hover {
  border-color: rgba(0, 215, 164, 0.4);
}

.anytime-card h3 {
  font-size: 1rem;
  color: var(--accent);
  margin: 0 0 0.5rem;
}

.anytime-card p {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin: 0;
}

.approval-flow {
  background: linear-gradient(135deg, rgba(0, 215, 164, 0.08), rgba(0, 232, 184, 0.05));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  text-align: center;
}

.approval-flow h3 {
  font-family: var(--font-title);
  font-size: 1.1rem;
  color: var(--accent);
  margin: 0 0 0.5rem;
}

.approval-flow p {
  font-size: 0.95rem;
  color: var(--text-muted);
  margin: 0;
}

/* ========== 06 闭环管控 ========== */
.control-three {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-bottom: 1.5rem;
}

@media (max-width: 768px) {
  .control-three {
    grid-template-columns: 1fr;
  }
}

.control-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  text-align: center;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.control-item:hover {
  border-color: rgba(0, 215, 164, 0.4);
  box-shadow: 0 0 20px var(--accent-glow);
}

.control-icon {
  display: inline-block;
  width: 48px;
  height: 48px;
  line-height: 48px;
  font-family: var(--font-title);
  font-size: 0.75rem;
  color: var(--accent);
  border: 1px solid var(--border);
  border-radius: 50%;
  margin-bottom: 0.75rem;
}

.control-item h3 {
  font-size: 1.1rem;
  color: var(--text);
  margin: 0 0 0.5rem;
}

.control-item p {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin: 0;
}

.control-desc {
  text-align: center;
  color: var(--text-muted);
  font-size: 0.95rem;
  margin: 0 0 2rem;
}

/* ========== 07 经济效益 ========== */
.economy-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  margin-bottom: 2rem;
}

@media (max-width: 768px) {
  .economy-content {
    grid-template-columns: 1fr;
  }
}

.economy-side h3,
.economy-flow h3 {
  font-size: 1.1rem;
  color: var(--accent);
  margin: 0 0 0.5rem;
}

.economy-side p,
.economy-flow p,
.economy-side ul,
.economy-flow ul {
  font-size: 0.95rem;
  color: var(--text-muted);
  margin: 0 0 0.5rem;
}

.economy-flow ul {
  list-style: none;
  padding: 0;
}

.economy-flow li {
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--border);
  color: var(--text-muted);
}

.economy-flow li:last-child {
  border-bottom: none;
}

/* ========== 08 社会价值 ========== */
.society-blocks {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-bottom: 2rem;
}

.society-block {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
}

.society-block h3 {
  font-size: 1rem;
  color: var(--accent);
  margin: 0 0 0.5rem;
}

.society-block p {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin: 0;
}

.industry-grid {
  margin-bottom: 2rem;
}

.industry-grid h3 {
  font-family: var(--font-title);
  font-size: 1rem;
  color: var(--text);
  text-align: center;
  margin: 0 0 1rem;
}

.industry-tags {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.75rem;
}

.industry-tags span {
  padding: 0.5rem 1rem;
  background: rgba(0, 215, 164, 0.08);
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 0.9rem;
  color: var(--text-muted);
  transition: border-color 0.2s, color 0.2s;
}

.industry-tags span:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* ========== 09 落地保障 ========== */
.landing-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-bottom: 2rem;
}

@media (max-width: 768px) {
  .landing-steps {
    grid-template-columns: 1fr;
  }
}

.landing-step {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  text-align: center;
  position: relative;
}

.landing-step-num {
  display: inline-block;
  width: 40px;
  height: 40px;
  line-height: 40px;
  font-family: var(--font-title);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--bg-deep);
  background: var(--accent);
  border-radius: 50%;
  margin-bottom: 0.75rem;
}

.landing-step h4 {
  font-size: 1rem;
  color: var(--text);
  margin: 0 0 0.35rem;
}

.landing-step p {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin: 0;
}

.landing-guaran {
  margin-bottom: 2rem;
  padding: 1.5rem;
  background: rgba(0, 215, 164, 0.05);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.landing-guaran h3 {
  font-size: 1.1rem;
  color: var(--accent);
  margin: 0 0 0.75rem;
}

.landing-guaran ul {
  margin: 0;
  padding-left: 1.25rem;
  color: var(--text-muted);
  font-size: 0.95rem;
}

.landing-guaran li {
  margin-bottom: 0.35rem;
}

.expected-outcomes h3 {
  font-family: var(--font-title);
  font-size: 1rem;
  color: var(--text);
  text-align: center;
  margin: 0 0 1rem;
}

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

@media (max-width: 900px) {
  .outcomes-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 480px) {
  .outcomes-grid {
    grid-template-columns: 1fr;
  }
}

.outcome-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  text-align: center;
}

.outcome-item h4 {
  font-size: 0.95rem;
  color: var(--accent);
  margin: 0 0 0.35rem;
}

.outcome-item p {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin: 0;
}

/* ========== 关于我们 / 合作伙伴 ========== */
.section-about,
.section-partners {
  padding: 2rem 0;
}

.about-content p {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.8;
  margin: 0 0 1rem;
}

.partners-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem 1.5rem;
  margin-bottom: 1rem;
}

.partner-item {
  font-size: 0.95rem;
  color: var(--text-muted);
  padding: 0.4rem 0.9rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.partners-note {
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-muted);
  opacity: 0.85;
  margin: 0;
}

/* ========== 页脚 ========== */
.site-footer {
  background: var(--bg-deep);
  border-top: 1px solid var(--border);
  padding: 2rem 0;
  background: url('../image/bgc_2.png') center/cover no-repeat;
}
.site-footer .footer-contact p,
.site-footer .footer-bottom p {
  color: rgba(255, 255, 255, 0.85);
}
.site-footer .footer-contact a { color: var(--accent-dim); }
.site-footer .footer-contact a:hover { color: var(--accent); }

.footer-top { margin-bottom: 1.5rem; }

.footer-coop,
.footer-contact {
  margin-bottom: 2rem;
}

.footer-coop h3,
.footer-contact h3 {
  font-family: var(--font-title);
  font-size: 1rem;
  color: var(--accent);
  margin: 0 0 0.5rem;
}

.footer-tel {
  font-size: 1rem;
  color: var(--text);
  font-weight: 500;
}

.footer-promise {
  font-size: 0.95rem;
  color: var(--text-muted);
  margin: 0 0 0.75rem;
}

.footer-coop p,
.footer-contact p {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin: 0 0 0.25rem;
}
.footer-contact a { color: var(--accent); text-decoration: none; }
.footer-contact a:hover { text-decoration: underline; }

.footer-bottom {
  text-align: center;
}

.footer-bottom p {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin: 0;
}

/* 设计图：联系我们获取专属方案 + 双电话按钮 */
.footer-cta {
  text-align: center;
  margin-bottom: 1.5rem;
}
.footer-cta h3 {
  font-family: var(--font-title);
  font-size: 1.25rem;
  color: var(--text);
  margin: 0 0 1rem;
}
.footer-cta-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
  align-items: center;
}
.footer-cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  background: linear-gradient(135deg, var(--accent), var(--accent-dim));
  color: #fff;
  font-weight: 600;
  font-size: 1rem;
  /* border-radius: var(--radius); */
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.2s, box-shadow 0.2s;
}
.footer-cta-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px var(--accent-glow);
}
.footer-cta-btn::before {
  content: '';
  width: 18px;
  height: 18px;
  background: currentColor;
  mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2'%3E%3Cpath d='M22 16.92v3a2 2 0 01-2.18 2 19.79 19.79 0 01-8.63-3.07 19.5 19.5 0 01-6-6 19.79 19.79 0 01-3.07-8.67A2 2 0 014.11 2h3a2 2 0 012 1.72 12.84 12.84 0 00.7 2.81 2 2 0 01-.45 2.11L8.09 9.91a16 16 0 006 6l1.27-1.27a2 2 0 012.11-.45 12.84 12.84 0 002.81.7A2 2 0 0122 16.92z'/%3E%3C/svg%3E") center/contain no-repeat;
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2'%3E%3Cpath d='M22 16.92v3a2 2 0 01-2.18 2 19.79 19.79 0 01-8.63-3.07 19.5 19.5 0 01-6-6 19.79 19.79 0 01-3.07-8.67A2 2 0 014.11 2h3a2 2 0 012 1.72 12.84 12.84 0 00.7 2.81 2 2 0 01-.45 2.11L8.09 9.91a16 16 0 006 6l1.27-1.27a2 2 0 012.11-.45 12.84 12.84 0 002.81.7A2 2 0 0122 16.92z'/%3E%3C/svg%3E") center/contain no-repeat;
}

/* 子页顶部 Banner（设计图：大图+左/中标题+CTA） */
.subpage-banner {
  position: relative;
  min-height: 42vh;
  display: flex;
  align-items: center;
  padding: calc(var(--header-h) + 2rem) 1rem 3rem;
  background: var(--bg-dark) url('../image/bgc_1.jpg') center/cover no-repeat;
}
/* .subpage-banner::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(5,8,16,0.85) 0%, rgba(10,14,39,0.75) 100%);
} */
.subpage-banner .container {
  position: relative;
  z-index: 1;
}
/* 设计图：顶部青绿色小字 */
.subpage-banner .banner-label {
  font-size: 0.95rem;
  color: #00d7a4;
  margin: 0 0 0.5rem;
  font-weight: 400;
}
.subpage-banner .banner-title {
  font-family: var(--font-title);
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  color: #fff;
  margin: 0 0 0.5rem;
  line-height: 1.3;
}
.subpage-banner .banner-desc {
  font-size: 1rem;
  color: #fff;
  margin: 0 0 0.35rem;
  max-width: 640px;
}
.subpage-banner .banner-desc--small {
  font-size: 0.95rem;
  color: rgba(255,255,255,0.95);
  margin-bottom: 1.5rem;
}
/* 设计图：双按钮水平排列，左实心青绿、右描边青绿，适中圆角 */
.subpage-banner .banner-cta-wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 0;
}
.page-products .subpage-banner .container {
  text-align: center;
}
.page-products .subpage-banner .banner-title {
  margin-bottom: 0.75rem;
}
.page-products .subpage-banner .banner-title--sub {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  color: #fff;
  margin: 0 0 2rem;
  line-height: 1.3;
}
.page-products .subpage-banner .banner-cta-wrap {
  justify-content: center;
}
.subpage-banner .hero-cta {
  margin-top: 0;
  border-radius: 999px;
  font-weight: 500;
}
.subpage-banner .hero-cta--solid,
.subpage-banner .hero-cta:not(.hero-cta--outline) {
  background: #00d7a4 !important;
  color: #fff !important;
  border: none;
}
.subpage-banner .hero-cta--solid:hover,
.subpage-banner .hero-cta:not(.hero-cta--outline):hover {
  background: #00e8b5 !important;
  color: #fff !important;
}
.subpage-banner .hero-cta--outline {
  background: transparent !important;
  color: #00d7a4 !important;
  border: 2px solid #00d7a4;
}
.subpage-banner .hero-cta--outline:hover {
  background: rgba(0, 215, 164, 0.15) !important;
  color: #00d7a4 !important;
  border-color: #00d7a4;
}

/* 首页核心产品：设计图为左右布局 — 左：标题+描述+按钮，右：产品图，中间留出边距 */
.product-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  overflow: hidden;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0 2rem;
  transition: border-color 0.3s, box-shadow 0.3s;
  padding: 2rem;
  min-width: 0; /* 允许在窄屏下收缩，避免真机因 min-width:auto 导致图片撑破布局 */
}
/* .product-card:hover {
  border-color: rgba(0, 215, 164, 0.4);
  box-shadow: 0 12px 32px rgba(0,0,0,0.3);
} */
.product-card-img {
  width: 100%;
  max-width: 100%;
  height: 100%;
  min-height: 12.5rem;
  object-fit: cover;
  background: #ECECEC;
  grid-column: 2;
  align-self: center;
  display: block; /* 消除图片底部空隙，避免真机布局错位 */
}
.product-card-body {
  display: flex;
  flex-direction: column;
  grid-column: 1;
  min-height: 0;
  justify-content: center;
}
.product-card h3 {
  font-size: 1.05rem;
  color: var(--text);
  margin: 0 0 0.5rem;
}
/* 核心产品区卡片标题字号略大，与分组标题层级区分 */
.section-services .product-card h3 {
  font-size: 1.2rem;
  font-weight: 600;
}
.product-card p {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin: 0 0 1rem;
  flex: 1;
}
.product-card .product-card-link {
  font-size: 0.85rem;
  color: var(--accent);
  margin-top: auto;
}
.product-card .product-card-link:hover { text-decoration: underline; }
/* 设计图：核心产品卡「了解更多」— 描边按钮、绿边绿字、透明底、圆角 */
.product-card .product-card-btn {
  display: inline-block;
  margin-top: auto;
  padding: 0.75rem 2rem;
  font-size: 0.9rem;
  font-weight: 400;
  color: #00d7a4;
  background: transparent;
  border: 1px solid #00d7a4;
  transition: background 0.25s, color 0.25s;
  align-self: flex-start;
}
.product-card .product-card-btn:hover {
  background: rgba(0, 215, 164, 0.08);
  color: #00d7a4;
}
.products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 3rem;
  min-width: 0; /* 窄屏/真机下允许收缩，避免子项撑破宽度 */
}
.products-grid--2 { grid-template-columns: repeat(2, 1fr); }
@media (max-width: 900px) {
  .products-grid { grid-template-columns: repeat(2, 1fr); }
  .products-grid--2 { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .product-card { grid-template-columns: 1fr; min-width: 0; }
  .product-card-body { grid-column: 1; margin-bottom: 1.5rem; }
  /* 移动端以宽度为主导：图片宽度铺满，高度自适应，不设 min-height 避免撑乱布局 */
  .product-card-img {
    grid-column: 1;
    width: 100%;
    max-width: 100%;
    height: auto;
    min-height: 0;
    object-fit: contain;
    align-self: start;
  }
}
@media (max-width: 560px) {
  .products-grid { grid-template-columns: 1fr; }
}

/* 解决方案模块：左右交替 图+文 */
.solution-module {
  margin-bottom: 3rem;
  padding: 4.8rem 10%;
  border-bottom: 1px solid var(--border);
  background: #94a3b8;
}
.page-solutions .solution-module {
  background: transparent;
  border-bottom: none;
}
.solution-module__content {
  display: flex;
  align-items: center;
  gap: 2rem;
  background: #f9f9f9;
  padding: 2.4rem 10%;
  border-radius: 8px;
  box-shadow: 0px 6px 18px rgba(0, 31, 112, 0.16);
}
.solution-module:last-child { border-bottom: none; margin-bottom: 0; }
/* 奇数行：左图右文；偶数行：左文右图（用 order 控制，不依赖 rtl） */
.solution-module__content { flex-direction: row; }
.solution-module__media { order: 1; border-radius: var(--radius); flex: 1; overflow: hidden; border: 1px solid var(--border); }
.solution-module__body { order: 2; }
.solution-module--reverse .solution-module__media { order: 2; }
.solution-module--reverse .solution-module__body { order: 1; text-align: left; }
.solution-module__media .section-img { width: 100%; aspect-ratio: 16/10; object-fit: cover; }
.solution-module__body { flex: 1; }
.solution-module__body .section-title { margin-bottom: 0.75rem; }
.solution-module__body p { color: var(--text-muted); margin: 0 0 1rem; font-size: 0.95rem; }
/* 设计图：标题下青绿短线（首页使用）；解决方案子页关闭横线与改色在下方单独覆盖 */
.solution-module__body .section-title--underline {
  margin-bottom: 0.5rem;
  padding-bottom: 0.5rem;
  display: inline-block;
  border-bottom: none;
}
.solution-module__body .section-title--underline::after {
  content: '';
  display: block;
  width: 60px;
  height: 2px;
  background: var(--accent);
  margin-top: 0.5rem;
}
/* 设计图：标题 / 特性区 / 描述 上中下间距 */
.solution-module__body .section-title--underline {
  margin-bottom: 1rem;
}
.solution-features {
  display: flex;
  gap: 1rem 2rem;
  flex-wrap: wrap;
  margin-top: 2.5rem;
  margin-bottom: 2.5rem;
}

/* 解决方案子页：卡片无中间横线，文字颜色按设计微调 */
.page-solutions .section-head .section-title,
.page-solutions .solution-module__body .section-title {
  color: #111;
}
.page-solutions .solution-module__body .section-title--underline::after {
  display: none;
}
.page-solutions .solution-module__body p {
  color: #595b5e;
}
.page-solutions .solution-features .solution-feature-label,
.page-solutions .solution-features span {
  color: #333;
}
.solution-feature-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex: 1;
}
.solution-feature-icon {
  width: 40px;
  height: 40px;
}

.solution-feature-label {
  font-size: 0.9rem;
  font-weight: 500;
  color: #333;
}
.solution-module__body p { color: #333; margin-top: 0; }
.page-index .section--light .solution-module__body p { color: #333; margin-top: 0; }

/* 首页解决方案：Tab 分类（设计图：激活项青绿下划线） */
.solution-tabs {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.5rem 5.5rem;
  margin-bottom: 2rem;
}
.solution-tab {
  line-height: 3.65rem;
  font-size: 1.15rem;
  color: var(--text-on-light);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  transition: border-color 0.2s, color 0.2s;
}
.solution-tab:hover { color: var(--accent); }
.solution-tab.is-active { border-bottom-color: var(--accent); color: var(--accent); }

/* 首页解决方案：多块内容仅显示当前激活项 */
.page-index #solutions .solution-module--index { display: none;
background: url('../image/index/bgc_1.png') no-repeat center center;
background-size: cover;
}
.page-index #solutions .solution-module--index.is-active { display: block; }

/* 首页解决方案：三图标（快速部署、实时监控、数据分析） */
.solution-icons {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem 2rem;
  margin-bottom: 1.5rem;
}
.solution-icon-item {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
  color: var(--text-muted-on-light);
}
.solution-icon {
  display: block;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 2px solid var(--accent);
  background: rgba(0, 215, 164, 0.1);
  flex-shrink: 0;
}
.solution-icons--two { gap: 2rem 3rem; }
.solution-icon--brain { background: rgba(0, 215, 164, 0.15); }
.solution-icon--pin { background: rgba(0, 215, 164, 0.15); }
/* 解决方案模块移动端：左右布局改为上下堆叠，控制内边距与宽度 */
@media (max-width: 768px) {
  .solution-module {
    padding: 2rem 1rem;
    margin-bottom: 2rem;
  }
  .solution-module__content {
    flex-direction: column;
    padding: 1.5rem 1rem;
    gap: 1.25rem;
  }
  .solution-module__media {
    order: 1;
    width: 100%;
  }
  .solution-module__body {
    order: 2;
    text-align: left;
  }
  .solution-module--reverse .solution-module__media {
    order: 1;
  }
  .solution-module--reverse .solution-module__body {
    order: 2;
    text-align: left;
  }
  .solution-module__body .section-title--underline {
    font-size: clamp(1.1rem, 4vw, 1.375rem);
  }
  .solution-features {
    margin-top: 1.25rem;
    margin-bottom: 1.25rem;
    gap: 0.75rem 1.5rem;
  }
}

/* 解决方案页：主内容区移动端宽度与内边距 */
@media (max-width: 768px) {
  .page-solutions .page-content .container {
    padding-left: 1rem;
    padding-right: 1rem;
    max-width: 100%;
    box-sizing: border-box;
  }
  .page-solutions .section-head {
    padding-left: 0;
    padding-right: 0;
  }
}

/* 首页解决方案区块：容器内边距与 Tab 移动端适配 */
@media (max-width: 768px) {
  .page-index #solutions .container--solutions {
    padding-left: 1rem;
    padding-right: 1rem;
    box-sizing: border-box;
  }
  .page-index #solutions .section-head {
    padding-left: 0;
    padding-right: 0;
  }
  .solution-tabs {
    gap: 0.5rem 1.25rem;
    margin-bottom: 1.5rem;
    justify-content: flex-start;
  }
  .solution-tab {
    font-size: 0.95rem;
    line-height: 2.5rem;
  }
}

/* ========== 子页差异化：多源数据融合 page-fusion ========== */
.page-fusion .fusion-nodes__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-bottom: 2rem;
}
@media (max-width: 768px) {
  .page-fusion .fusion-nodes__grid { grid-template-columns: 1fr; }
}
.page-fusion .fusion-node {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  transition: border-color 0.25s, box-shadow 0.25s;
}
.page-fusion .fusion-node:hover {
  border-color: rgba(0, 215, 164, 0.5);
  box-shadow: 0 0 28px var(--accent-glow);
}
.page-fusion .fusion-node__ring {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 80%;
  height: 80%;
  margin: -40% 0 0 -40%;
  border: 1px solid rgba(0, 215, 164, 0.2);
  border-radius: 50%;
  pointer-events: none;
  animation: fusion-ring-pulse 3s ease-in-out infinite;
}
.page-fusion .fusion-node:nth-child(2) .fusion-node__ring { animation-delay: 0.5s; }
.page-fusion .fusion-node:nth-child(3) .fusion-node__ring { animation-delay: 1s; }
@keyframes fusion-ring-pulse {
  0%, 100% { transform: scale(0.95); opacity: 0.4; }
  50% { transform: scale(1.15); opacity: 0.8; }
}
.page-fusion .fusion-node h3 {
  font-size: 1rem;
  color: var(--text);
  margin: 0 0 0.5rem;
  position: relative;
  z-index: 1;
}
.page-fusion .fusion-node p {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin: 0;
  position: relative;
  z-index: 1;
}
/* 融合页：边框跑马灯 */
.page-fusion .control-item--border-run {
  position: relative;
  overflow: hidden;
}
.page-fusion .control-item--border-run::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent, var(--accent));
  background-size: 200% 100%;
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  animation: border-run 4s linear infinite;
}
@keyframes border-run {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* ========== 子页差异化：情报服务 page-intel ========== */
.page-intel .intel-card {
  position: relative;
  padding-left: 3rem;
}
.page-intel .intel-card__icon {
  position: absolute;
  left: 0;
  top: 0.25rem;
  font-size: 1.75rem;
  opacity: 0.9;
  transition: transform 0.35s var(--ease-out-back);
}
.page-intel .intel-card:hover .intel-card__icon {
  transform: scale(1.15) rotate(-5deg);
}
.page-intel .list-feature--slide li {
  opacity: 0;
  transform: translateX(-16px);
  transition: opacity 0.4s var(--ease-out-expo), transform 0.4s var(--ease-out-expo);
}
.page-intel .list-feature--slide li:nth-child(1) { transition-delay: 0ms; }
.page-intel .list-feature--slide li:nth-child(2) { transition-delay: 60ms; }
.page-intel .list-feature--slide li:nth-child(3) { transition-delay: 120ms; }
.page-intel .list-feature--slide li:nth-child(4) { transition-delay: 180ms; }
.page-intel .list-feature--slide li:nth-child(5) { transition-delay: 240ms; }
.page-intel .section.is-visible .list-feature--slide li,
.page-intel .intel-card.is-visible .list-feature--slide li {
  opacity: 1;
  transform: translateX(0);
}

/* ========== 关于我们：顶部全屏图 + 下方文字介绍 ========== */
.page-about .page-content {
  padding-top: 0;
}
.page-about .about-hero-img {
  width: 100%;
  max-height: 50vh;
  overflow: hidden;
  background: var(--bg-deep);
}
.page-about .about-hero-img img {
  width: 100%;
  height: auto;
  max-height: 50vh;
  object-fit: cover;
  object-position: center;
  display: block;
}
.page-about .about-intro-wrap {
  padding-top: 2.5rem;
  padding-bottom: 3rem;
}
.page-about .about-intro {
  max-width: 75%;
  margin: 0 auto;
}
.page-about .about-intro p {
  margin: 0 0 1.5rem;
  color: var(--text-on-light);
  line-height: 1.9;
  font-size: 1.25rem;
}
.page-about .about-intro p:last-child {
  margin-bottom: 0;
}
.page-about .about-highlight--orange {
  color: #f59e0b;
  font-weight: 500;
}
.page-about .about-highlight--green {
  color: #22c55e;
  font-weight: 500;
}
/* 关于我们 Banner：高度与首页 hero 一致（100vh），使用 image 下关于我们专用图，文案右对齐 */
.page-about .subpage-banner.subpage-banner--about {
  min-height: 60vh;
  box-sizing: border-box;
  background-image: url('../image/about_banner.jpg');
}
/* 关于我们 Banner 不带滑动入场效果 */
.page-about .subpage-banner [class*="animate-in"] {
  opacity: 1;
  transform: none;
  transition: none;
}
.page-about .subpage-banner .container {
  text-align: right;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
}
.page-about .subpage-banner .banner-title {
  font-size: clamp(2.5rem, 6vw, 3.5rem);
  font-weight: 700;
  color: #fff;
  margin: 0 0 0.5rem;
}
.page-about .subpage-banner .banner-desc {
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.9);
  margin: 0;
}
/* 主内容区：白底第一块 + 浅灰底第二、三块，标题统一大号深色 */
.page-about .page-content {
  background: #fff;
}
.page-about .section--about-intro {
  background: #fff;
}
.page-about .about-section-title {
  font-family: var(--font-title);
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  font-weight: 700;
  color: #111;
  margin: 0 0 0.4rem;
}
.page-about .about-section-sub {
  font-size: 0.9375rem;
  color: #6b7280;
  margin: 0 0 2rem;
  line-height: 1.5;
}
/* 第二、三块 section 标题与第一块统一：大号黑色标题 + 灰色副标题 */
.page-about .page-content .section .section-head .section-title {
  font-family: var(--font-title);
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  font-weight: 700;
  color: #111;
  margin: 0 0 0.4rem;
}
.page-about .page-content .section .section-head .section-sub {
  font-size: 0.9375rem;
  color: #666;
  /* margin: 0 0 1.5rem; */
  line-height: 1.5;
}
.page-about .about-multi-terminal {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
  padding: 2rem 0;
  margin: 0 auto;
  max-width: 75%;
}
@media (max-width: 768px) { .page-about .about-multi-terminal { grid-template-columns: 1fr; } }
.page-about .about-terminal-item { padding: 1rem 0; }
.page-about .about-terminal-item h4 { font-size: 1.25rem; color: #000; margin: 0 0 0.35rem; }
.page-about .about-terminal-item p { font-size: 1.25rem; color: #000; margin: 0; }
.page-about .about-map-wrap { max-width: 75%;margin: 0 auto; }

.page-about .about-map-wrap img { width: 100%; height: 100%; object-fit: cover; }
.page-about .about-cta-section { padding: 2rem 0; }
.page-about .footer-ecosystem {
  background: var(--bg-dark) url('../image/bgc_3.png') center/cover no-repeat;
  padding: 4rem 1rem;
  text-align: center;
  position: relative;
}
.page-about .footer-ecosystem::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(5,8,16,0.75);
}
.page-about .footer-ecosystem .container { position: relative; z-index: 1; }
.page-about .footer-ecosystem h2 { font-family: var(--font-title); font-size: 1.5rem; color: #fff; margin: 0 0 0.5rem; }
.page-about .footer-ecosystem p { color: rgba(255,255,255,0.9); margin: 0; font-size: 0.95rem; }

/* 关于我们页：从「即可咨询」到底部与首页布局一致，复用 last-screen + ecosystem + contact-home + footer */
.page-about .page-index-last-screen {
  display: flex;
  flex-direction: column;
  padding-bottom: 0;
}
.page-about .page-index-last-screen .site-footer {
  margin-top: 0;
  padding: 2rem 0;
}
.page-about .page-index-last-screen .footer-bottom p { font-size: 0.85rem; }
.page-about #cta.ecosystem {
  position: relative;
  width: 100%;
  margin: 0;
  height: 60vh;
  min-height: 520px;
  overflow: hidden;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: calc(var(--header-h) + 3rem);
  background: url('../image/bgc_3.png') center/cover no-repeat;
}
.page-about #cta.ecosystem::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(5, 8, 16, 0.3) 0%, rgba(5, 8, 16, 0.45) 60%, rgba(5, 8, 16, 0.5) 100%);
}