/* ========================================================================
   Poplar Smart 白杨智慧官网 - 全新白色主色调 + 半透明科技风设计
   ======================================================================== */

/* ===== 设计系统变量 ===== */
:root{
  --primary:#0b3d91;
  --primary-dark:#072a66;
  --primary-light:#1e5fcf;
  --accent:#ff8a1f;
  --accent-dark:#ef7607;
  --accent2:#16a34a;
  --bg:#ffffff;
  --bg-soft:#f0f4ff;
  --bg-mesh:linear-gradient(135deg,#e8f0ff 0%,#ffffff 30%,#fff5eb 100%);
  --bg-dark:#0b1a33;
  --text:#1d1d1f;
  --text-soft:#424245;
  --text-muted:#6e6e73;
  --line:rgba(0,0,0,0.08);
  --line-light:rgba(0,0,0,0.05);

  /* 玻璃层级系统 — 三档真实半透明 */
  --glass-soft:rgba(255,255,255,0.45);
  --glass-mid:rgba(255,255,255,0.55);
  --glass-strong:rgba(255,255,255,0.72);
  --glass-border:rgba(255,255,255,0.65);
  --glass-blur:blur(12px) saturate(150%);

  /* Layered shadow — 模拟真实玻璃边缘光 + 远阴影 */
  --glass-shadow:
    0 1px 0 rgba(255,255,255,0.6) inset,
    0 1px 2px rgba(11,61,145,0.04),
    0 8px 24px rgba(11,61,145,0.06),
    0 24px 48px -12px rgba(11,61,145,0.10);
  --glass-shadow-hover:
    0 1px 0 rgba(255,255,255,0.8) inset,
    0 2px 4px rgba(11,61,145,0.06),
    0 12px 32px rgba(11,61,145,0.10),
    0 32px 64px -16px rgba(11,61,145,0.15);

  --shadow-sm:0 1px 2px rgba(0,0,0,0.04),0 2px 8px rgba(0,0,0,0.03);
  --shadow:0 1px 0 rgba(255,255,255,0.5) inset,0 4px 16px rgba(0,0,0,0.05),0 12px 32px -8px rgba(0,0,0,0.06);
  --shadow-lg:0 1px 0 rgba(255,255,255,0.5) inset,0 8px 24px rgba(0,0,0,0.06),0 24px 56px -12px rgba(0,0,0,0.08);

  --radius:16px;
  --radius-sm:10px;
  --radius-lg:24px;
  --ease-out:cubic-bezier(0.25,0.46,0.45,0.94);
  --ease-spring:cubic-bezier(0.34,1.56,0.64,1);
  --ease-smooth:cubic-bezier(0.4,0,0.2,1);
  --transition:0.4s var(--ease-smooth);

  /* SVG noise 纹理 — 消除塑料感 */
  --noise:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 0  0 0 0 0 0  0 0 0 0 0  0 0 0 0.025 0'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
html,body{margin:0;padding:0}
body{
  font-family:-apple-system,BlinkMacSystemFont,"SF Pro Display","PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  color:var(--text);
  background-color:var(--bg);
  /* Mesh gradient — 让玻璃卡片有东西可透；noise 纹理直接并入背景层（无混合模式，大屏不卡） */
  background-image:
    var(--noise),
    radial-gradient(ellipse 50% 40% at 10% 0%,rgba(11,61,145,0.10),transparent 60%),
    radial-gradient(ellipse 45% 35% at 90% 8%,rgba(255,138,31,0.08),transparent 60%),
    radial-gradient(ellipse 60% 50% at 50% 50%,rgba(30,95,207,0.04),transparent 70%),
    radial-gradient(ellipse 40% 30% at 80% 90%,rgba(11,61,145,0.06),transparent 60%),
    radial-gradient(ellipse 35% 25% at 20% 95%,rgba(255,138,31,0.05),transparent 60%);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{width:min(1200px,92%);margin:0 auto}

/* ===== 滚动动画基础类 ===== */
.reveal{
  opacity:0;
  transform:translateY(40px);
  transition:opacity 0.8s var(--ease-out),transform 0.8s var(--ease-out);
}
.reveal.active{opacity:1;transform:translateY(0)}
.reveal-delay-1{transition-delay:0.1s}
.reveal-delay-2{transition-delay:0.2s}
.reveal-delay-3{transition-delay:0.3s}
.reveal-delay-4{transition-delay:0.4s}
.reveal-scale{opacity:0;transform:scale(0.95);transition:opacity 0.8s var(--ease-out),transform 0.8s var(--ease-out)}
.reveal-scale.active{opacity:1;transform:scale(1)}

/* ===== 通用区块 ===== */
.section{padding:80px 0;position:relative;overflow:hidden;z-index:1}
.section-gray{
  /* 半透明底 + 光斑,让玻璃卡片透出色彩 */
  background:
    radial-gradient(ellipse 60% 50% at 15% 25%,rgba(11,61,145,0.10),transparent 65%),
    radial-gradient(ellipse 50% 45% at 85% 75%,rgba(255,138,31,0.08),transparent 65%),
    radial-gradient(ellipse 80% 60% at 50% 50%,rgba(240,244,255,0.55),transparent 75%);
}
.section-gray::before{
  content:"";position:absolute;inset:0;z-index:0;pointer-events:none;
  background-image:var(--noise);opacity:0.5;
}
.section-gray > *{position:relative;z-index:1}
.section-dark{background:linear-gradient(180deg,#0b1a33 0%,#0f2450 100%);color:#e8edf7}
.section-title{text-align:center;margin-bottom:40px;position:relative}
.section-title h2{
  font-size:36px;margin:0;color:var(--text);font-weight:700;
  letter-spacing:-0.5px;line-height:1.3;
}
/* 标题下划线 — 改单色 primary,去掉彩虹渐变 */
.section-title h2::after{
  content:"";display:block;width:48px;height:2px;
  background:var(--primary);
  margin:16px auto 0;border-radius:2px;
}
.section-title p{color:var(--text-muted);margin-top:12px;font-size:16px;max-width:640px;margin-left:auto;margin-right:auto}
.section-dark .section-title h2{color:#fff}
.section-dark .section-title p{color:#b6c3de}

/* ===== 按钮系统 ===== */
.btn{
  display:inline-flex;align-items:center;gap:6px;
  padding:14px 32px;border-radius:100px;font-weight:600;cursor:pointer;
  border:none;transition:all 0.35s var(--ease-spring);font-size:15px;
  font-family:inherit;position:relative;overflow:hidden;letter-spacing:0.3px;
}
/* 按钮顶部高光 — 模拟物理质感,去掉过于平滑的渐变 */
.btn::after{
  content:"";position:absolute;top:0;left:0;right:0;height:50%;
  background:linear-gradient(180deg,rgba(255,255,255,0.18),transparent);
  pointer-events:none;border-radius:100px 100px 0 0;
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 1px 0 rgba(255,255,255,0.15) inset,0 2px 8px rgba(11,61,145,0.20),0 6px 20px -4px rgba(11,61,145,0.25)}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:0 1px 0 rgba(255,255,255,0.15) inset,0 4px 12px rgba(11,61,145,0.30),0 12px 32px -6px rgba(11,61,145,0.35)}
.btn-primary:active{transform:translateY(0)}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 1px 0 rgba(255,255,255,0.2) inset,0 2px 8px rgba(255,138,31,0.25),0 6px 20px -4px rgba(255,138,31,0.30)}
.btn-accent:hover{background:var(--accent-dark);transform:translateY(-2px);box-shadow:0 1px 0 rgba(255,255,255,0.2) inset,0 4px 12px rgba(255,138,31,0.35),0 12px 32px -6px rgba(255,138,31,0.40)}
.btn-accent:active{transform:translateY(0)}
.btn-outline{background:var(--glass-mid);color:var(--primary-dark);border:1.5px solid var(--glass-border);backdrop-filter:var(--glass-blur);-webkit-backdrop-filter:var(--glass-blur)}
.btn-outline:hover{background:var(--primary);color:#fff;border-color:var(--primary);transform:translateY(-2px)}
.btn-ghost{background:transparent;color:var(--primary);border:1.5px solid var(--primary)}
.btn-ghost:hover{background:var(--primary);color:#fff;transform:translateY(-2px)}

/* ===== 顶栏 ===== */
.topbar{display:none}

/* ===== 悬浮透明导航栏 ===== */
.navbar{
  position:fixed;
  top:0;
  left:0;
  width:100%;
  z-index:1000;
  background:transparent;
  transition:all 0.35s var(--ease-smooth);
}

.navbar.scrolled{
  background:rgba(255,255,255,0.78);
  backdrop-filter:blur(10px) saturate(1.4);-webkit-backdrop-filter:blur(10px) saturate(1.4);
  box-shadow:0 1px 0 rgba(11,61,145,0.06),0 4px 20px -12px rgba(11,61,145,0.18);
}

.nav-inner{display:flex;align-items:center;justify-content:space-between;height:60px;transition:height 0.3s var(--ease-smooth);padding:0 6px}
.navbar.scrolled .nav-inner{height:56px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;color:var(--primary-dark);font-size:18px;letter-spacing:0.5px}
.navbar.scrolled .brand{color:var(--primary-dark)}
.navbar .brand{white-space:nowrap;flex-shrink:0}
.brand .logo{
  width:48px;height:48px;display:flex;align-items:center;justify-content:center;
  padding:0;box-sizing:border-box;flex-shrink:0;
  transition:transform 0.3s var(--ease-spring);
}
.brand:hover .logo{transform:scale(1.08) rotate(-3deg)}
.brand small{display:block;font-size:16px;color:var(--primary-dark);font-weight:700;letter-spacing:0.5px;white-space:nowrap}
.navbar.scrolled .brand small{color:var(--primary-dark)}
.nav-menu{
  display:flex;
  gap:2px;
  list-style:none;
  margin:0;
  padding:0;
  flex-wrap:nowrap;
}
.nav-menu>li{position:relative}
.nav-menu>li>a{
  display:block;padding:8px 14px;font-size:14px;font-weight:700;color:var(--primary-dark);
  border-radius:8px;transition:all 0.2s var(--ease-smooth);
}
.nav-menu>li>a:hover,.nav-menu>li>a.active{background:rgba(11,61,145,0.08);color:var(--primary)}
.navbar.scrolled .nav-menu>li>a{color:var(--primary-dark)}
.navbar.scrolled .nav-menu>li>a:hover,.navbar.scrolled .nav-menu>li>a.active{background:rgba(11,61,145,0.08);color:var(--primary)}
.nav-menu .dropdown{
  position:absolute;top:calc(100% + 8px);left:0;background:rgba(255,255,255,0.82);
  backdrop-filter:blur(22px) saturate(1.6);-webkit-backdrop-filter:blur(22px) saturate(1.6);
  min-width:240px;border-radius:16px;padding:10px;
  opacity:0;visibility:hidden;transform:translateY(8px) scale(0.97);
  transition:all 0.25s var(--ease-out);border:1px solid rgba(255,255,255,0.75);
  box-shadow:0 16px 48px rgba(11,61,145,0.16),inset 0 1px 0 rgba(255,255,255,0.8);
}
.nav-menu li:hover .dropdown{opacity:1;visibility:visible;transform:translateY(0) scale(1)}
.dropdown a{display:block;padding:10px 16px;font-size:14px;color:var(--text-soft);border-radius:10px;transition:all 0.15s}
.dropdown a:hover{background:rgba(11,61,145,0.08);color:var(--primary)}
.nav-actions{display:flex;align-items:center;gap:10px}
.nav-btn{padding:8px 16px;border-radius:100px;font-size:13px;font-weight:700;border:1px solid var(--line);background:rgba(255,255,255,0.6);color:var(--primary-dark);transition:all 0.2s}
.nav-btn.primary{background:var(--accent);color:#fff;border-color:transparent}
.nav-btn:hover{border-color:var(--primary);color:var(--primary);background:rgba(255,255,255,0.85)}
.nav-btn.primary:hover{background:var(--accent-dark);color:#fff;transform:translateY(-1px)}
.lang-switch{font-size:13px;color:var(--primary-dark);cursor:pointer;padding:6px 10px;border-radius:6px;transition:background 0.2s;font-weight:700}
.lang-switch:hover{background:rgba(11,61,145,0.08)}

/* ===== 多语言下拉切换器 ===== */
.lang-switch-v2{position:relative;padding:0;border-radius:10px}
.lang-menu-btn{display:inline-flex;align-items:center;gap:6px;padding:7px 10px;border:1px solid rgba(11,61,145,0.25);border-radius:100px;background:rgba(255,255,255,0.85);color:#0b3d91;font-size:12.5px;font-weight:700;font-family:inherit;cursor:pointer;transition:all .2s;white-space:nowrap}
.lang-menu-btn:hover{border-color:var(--primary);background:#fff;color:var(--primary);transform:translateY(-1px)}
.lang-menu-btn svg{flex-shrink:0}
.lang-menu-label{line-height:1}
.lang-caret{transition:transform .2s;opacity:.7}
.lang-switch-v2.open .lang-caret{transform:rotate(180deg)}
.lang-menu{position:absolute;right:0;top:calc(100% + 8px);min-width:168px;background:var(--glass-strong,#fff);backdrop-filter:blur(18px) saturate(1.4);-webkit-backdrop-filter:blur(18px) saturate(1.4);border:1px solid var(--line);border-radius:14px;box-shadow:0 18px 44px rgba(11,31,68,.16);padding:6px;z-index:1200;opacity:0;visibility:hidden;transform:translateY(-6px) scale(.98);transform-origin:top right;transition:all .18s ease}
.lang-switch-v2.open .lang-menu{opacity:1;visibility:visible;transform:translateY(0) scale(1)}
.lang-menu-item{display:flex;align-items:center;justify-content:space-between;gap:14px;width:100%;padding:9px 12px;border:none;background:none;border-radius:9px;font-size:13.5px;font-family:inherit;color:var(--text);cursor:pointer;text-align:left;transition:background .15s,color .15s;white-space:nowrap}
.lang-menu-item:hover{background:rgba(11,61,145,.07);color:var(--primary)}
.lang-menu-item.active{color:var(--primary);font-weight:700;background:rgba(11,61,145,.08)}
.lang-menu-item .lang-check{opacity:0;flex-shrink:0}
.lang-menu-item.active .lang-check{opacity:1}
.mobile-lang-host{display:none}
.mobile-toggle{display:none;font-size:24px;cursor:pointer;color:var(--primary-dark);background:none;border:none;padding:4px 8px}

/* ===== Hero Banner 全屏轮播 — 动态实况效果 ===== */
.banner{
  position:relative;
  overflow:hidden;
  width:100vw;
  height:100vh;
  left:50%;
  transform:translateX(-50%);
}

/* 单个轮播slide */
.banner .slide{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  display:none;
  opacity:0;
}
.banner .slide.active{
  display:block;
  opacity:1;
  animation:slideReveal 1s var(--ease-out);
}
@keyframes slideReveal{
  from{opacity:0;transform:scale(1.06)}
  to{opacity:1;transform:scale(1)}
}

/* 轮播背景图 + Ken Burns 缓慢推近平移（仅激活帧提升为合成层，避免多张全屏图层常驻） */
.banner .slide>img{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  object-fit:cover;
  z-index:0;
  transform-origin:center center;
}
.banner .slide.active>img{
  will-change:transform;
  animation:kenBurns 7s ease-out forwards;
}
@keyframes kenBurns{
  0%{transform:scale(1.0) translate(0,0)}
  100%{transform:scale(1.18) translate(-1.5%,-1.5%)}
}

/* 多层动态渐变遮罩 */
.banner .slide::after{
  content:"";
  position:absolute;
  inset:0;
  z-index:1;
  background:
    linear-gradient(135deg,rgba(7,42,102,0.55) 0%,rgba(0,0,0,0.25) 40%,rgba(255,138,31,0.12) 100%),
    linear-gradient(to top,rgba(0,0,0,0.35) 0%,transparent 50%);
}

/* 亮色背景帧专属（如04帧白色机柜图）：加深遮罩，保证白色标题文字可读 */
.banner .slide.slide-bright::after{
  background:
    linear-gradient(135deg,rgba(7,42,102,0.62) 0%,rgba(7,42,102,0.45) 45%,rgba(0,0,0,0.32) 100%),
    linear-gradient(to top,rgba(0,0,0,0.40) 0%,transparent 55%);
}

/* 文字容器 — 水平垂直居中 */
.banner-inner{
  position:relative;
  z-index:3;
  width:min(1200px,92%);
  margin:0 auto;
  min-height:100vh;
  display:flex;
  flex-direction:column;
  justify-content:center;
  align-items:center;
  text-align:center;
  padding-top:60px;
}

/* 文字入场动画 — 依次滑入 */
.banner .slide.active .banner-text h1{
  animation:textSlideIn 0.9s 0.25s var(--ease-out) both;
}
.banner .slide.active .banner-text p{
  animation:textFadeUp 0.8s 0.5s var(--ease-out) both;
}
.banner .slide.active .banner-btns{
  animation:textFadeUp 0.8s 0.7s var(--ease-out) both;
}
@keyframes textSlideIn{
  from{opacity:0;transform:translateX(-40px);filter:blur(8px)}
  to{opacity:1;transform:translateX(0);filter:blur(0)}
}
@keyframes textFadeUp{
  from{opacity:0;transform:translateY(30px)}
  to{opacity:1;transform:translateY(0)}
}

.banner-text h1{
  font-size:56px;
  line-height:1.15;
  margin:0 0 20px;
  font-weight:700;
  letter-spacing:-1px;
  color:#ffffff;
  text-shadow:0 2px 30px rgba(0,0,0,0.3);
}
.banner-text h1 em{
  font-style:normal;
  background:linear-gradient(135deg,#4dabf7,#ff8a1f);
  -webkit-background-clip:text;
  -webkit-text-fill-color:transparent;
  background-clip:text;
}
.banner-text p{
  font-size:18px;
  color:#f0f4f9;
  margin:0 0 36px;
  line-height:1.7;
  max-width:640px;
  text-shadow:0 1px 12px rgba(0,0,0,0.25);
}
.banner-btns{
  display:flex;
  gap:16px;
  flex-wrap:wrap;
  justify-content:center;
}

/* 隐藏旧的玻璃卡片 */
.banner-visual{
  display:none !important;
}

/* 浮动粒子层 */
.banner-particles{
  position:absolute;
  inset:0;
  z-index:2;
  pointer-events:none;
  overflow:hidden;
}
.banner-particles span{
  position:absolute;
  bottom:-20px;
  width:4px;
  height:4px;
  border-radius:50%;
  background:rgba(255,255,255,0.5);
  box-shadow:0 0 8px rgba(255,255,255,0.4);
  animation:floatUp linear infinite;
}
@keyframes floatUp{
  0%{transform:translateY(0) translateX(0) scale(0);opacity:0}
  10%{opacity:0.6;transform:translateY(-10vh) translateX(10px) scale(1)}
  90%{opacity:0.3}
  100%{transform:translateY(-100vh) translateX(-30px) scale(0.5);opacity:0}
}

/* 轮播底部控制区 */
.banner-controls{
  position:absolute;
  bottom:32px;
  left:50%;
  transform:translateX(-50%);
  z-index:6;
  display:flex;
  align-items:center;
  gap:20px;
}

/* 左右箭头 */
.banner-arrow{
  width:44px;height:44px;
  border-radius:50%;
  background:rgba(255,255,255,0.12);
  backdrop-filter:var(--glass-blur);
  border:1px solid rgba(255,255,255,0.25);
  color:#fff;
  font-size:18px;
  display:flex;align-items:center;justify-content:center;
  cursor:pointer;
  transition:all 0.3s var(--ease-spring);
}
.banner-arrow:hover{
  background:rgba(255,255,255,0.25);
  border-color:rgba(255,255,255,0.5);
  transform:scale(1.1);
}

/* 圆点 */
.banner-dots{
  display:flex;
  gap:10px;
  align-items:center;
}
.banner-dots span{
  width:10px;height:10px;border-radius:50%;
  background:rgba(255,255,255,0.25);
  cursor:pointer;
  transition:all 0.4s var(--ease-spring);
  position:relative;
  overflow:hidden;
}
.banner-dots span.active{
  width:40px;
  border-radius:5px;
  background:rgba(255,255,255,0.15);
}
.banner-dots span.active::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(90deg,var(--primary-light),var(--accent));
  border-radius:5px;
  transform-origin:left;
  animation:dotProgress 5.5s linear forwards;
}
@keyframes dotProgress{
  from{transform:scaleX(0)}
  to{transform:scaleX(1)}
}

/* 序号指示 */
.banner-counter{
  color:rgba(255,255,255,0.7);
  font-size:14px;
  font-weight:600;
  letter-spacing:1px;
  min-width:48px;
  text-align:center;
}
.banner-counter .cur{color:#fff;font-size:18px}

/* 底部进度条 */
.banner-progress{
  position:absolute;
  bottom:0;
  left:0;
  width:100%;
  height:3px;
  background:rgba(255,255,255,0.1);
  z-index:6;
  overflow:hidden;
}
.banner-progress .bar{
  height:100%;
  width:0;
  background:linear-gradient(90deg,var(--primary-light) 0%,var(--accent) 100%);
  box-shadow:0 0 12px rgba(255,138,31,0.5);
}
.banner-progress .bar.run{
  animation:progressFill 5.5s linear forwards;
}
@keyframes progressFill{
  from{width:0}
  to{width:100%}
}

/* 底部滚动提示 */
.banner-scroll-hint{
  position:absolute;
  bottom:100px;
  left:50%;
  transform:translateX(-50%);
  z-index:5;
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:8px;
  color:rgba(255,255,255,0.6);
  font-size:12px;
  letter-spacing:2px;
  animation:scrollHintBounce 2s var(--ease-smooth) infinite;
}
.banner-scroll-hint .mouse{
  width:24px;height:38px;
  border:2px solid rgba(255,255,255,0.4);
  border-radius:12px;
  position:relative;
}
.banner-scroll-hint .mouse::after{
  content:"";
  position:absolute;
  top:6px;left:50%;
  transform:translateX(-50%);
  width:3px;height:6px;
  background:#fff;
  border-radius:2px;
  animation:scrollDot 1.5s var(--ease-smooth) infinite;
}
@keyframes scrollHintBounce{
  0%,100%{transform:translateX(-50%) translateY(0)}
  50%{transform:translateX(-50%) translateY(8px)}
}
@keyframes scrollDot{
  0%{opacity:1;top:6px}
  100%{opacity:0;top:16px}
}


/* ===== 玻璃态卡片系统 ===== */
.card-grid{display:grid;gap:24px}
.card-grid.cols-4{grid-template-columns:repeat(4,1fr)}
.card-grid.cols-3{grid-template-columns:repeat(3,1fr)}
.card-grid.cols-2{grid-template-columns:repeat(2,1fr)}

/* 玻璃卡片 — 真透明 + layered shadow + 高光内边框 */
.glass-card{
  background:var(--glass-mid);
  backdrop-filter:var(--glass-blur);
  -webkit-backdrop-filter:var(--glass-blur);
  border:1px solid var(--glass-border);
  border-radius:var(--radius);
  padding:32px 28px;
  box-shadow:var(--glass-shadow);
  transition:transform 0.5s var(--ease-out),box-shadow 0.5s var(--ease-out),background 0.4s var(--ease-out);
  position:relative;overflow:hidden;
}
/* 顶部细线高光 — 模拟玻璃边缘反射 */
.glass-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent 0%,rgba(255,255,255,0.9) 50%,transparent 100%);
  pointer-events:none;
}
/* hover 时增强边缘光 + 微浮起,去掉夸张的背景渐变变化 */
.glass-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--glass-shadow-hover);
  border-color:rgba(255,255,255,0.85);
  background:var(--glass-strong);
}
.glass-card .card-icon{
  width:56px;height:56px;border-radius:14px;
  background:rgba(11,61,145,0.06);
  color:var(--primary);display:flex;align-items:center;justify-content:center;
  font-size:26px;margin-bottom:20px;
  border:1px solid var(--glass-border);
  transition:transform 0.4s var(--ease-out);
}
.glass-card:hover .card-icon{transform:scale(1.04)}
.glass-card h3{font-size:19px;margin:0 0 10px;color:var(--text);font-weight:600}
.glass-card p{color:var(--text-soft);margin:0;font-size:14.5px;line-height:1.75}
.glass-card .tag{
  display:inline-block;margin-top:16px;font-size:13px;
  color:var(--accent);font-weight:600;
}
.glass-card .tag::after{content:" →";transition:margin-left 0.2s}
.glass-card:hover .tag::after{margin-left:4px}

/* 兼容旧版 .card 类名 — 同样真透明化 */
.card{
  background:var(--glass-mid);
  backdrop-filter:var(--glass-blur);
  -webkit-backdrop-filter:var(--glass-blur);
  border:1px solid var(--glass-border);
  border-radius:var(--radius);padding:28px;
  transition:transform 0.5s var(--ease-out),box-shadow 0.5s var(--ease-out),background 0.4s var(--ease-out);
  box-shadow:var(--glass-shadow);position:relative;overflow:hidden;
}
.card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent 0%,rgba(255,255,255,0.9) 50%,transparent 100%);
  pointer-events:none;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--glass-shadow-hover);border-color:rgba(255,255,255,0.85);background:var(--glass-strong)}
.card-icon{width:56px;height:56px;border-radius:14px;background:rgba(11,61,145,0.06);color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:26px;margin-bottom:18px;transition:transform 0.4s var(--ease-spring);border:1px solid var(--glass-border)}
.card:hover .card-icon{transform:scale(1.04)}
.card h3{font-size:18px;margin:0 0 10px;color:var(--text);font-weight:600}
.card p{color:var(--text-soft);margin:0;font-size:14.5px;line-height:1.8}
.card .tag{display:inline-block;margin-top:14px;font-size:12.5px;color:var(--accent);font-weight:600}
.card .tag::after{content:"→";margin-left:4px;transition:margin-left 0.2s}
.card:hover .tag::after{margin-left:8px}

/* ===== 产品卡片（图片优先：方形大图完整展示，文字退居其次，悬停再交互） ===== */
.product-card{
  background:var(--glass-strong);
  backdrop-filter:var(--glass-blur);
  -webkit-backdrop-filter:var(--glass-blur);
  border:1px solid var(--glass-border);
  border-radius:18px;overflow:hidden;
  transition:transform 0.45s var(--ease-out),box-shadow 0.45s var(--ease-out),border-color 0.3s var(--ease-out);
  cursor:pointer;
  display:flex;flex-direction:column;
  box-shadow:0 6px 18px rgba(11,61,145,0.06);
}
.product-card:hover{
  transform:translateY(-6px);
  box-shadow:0 22px 44px rgba(11,61,145,0.16);
  border-color:rgba(11,61,145,0.22);
}
/* 方形图区：去掉内边距，配合 obj-fill 让横图完全顶满方框四边；竖图/方图 contain 完整显示 */
.product-cover{aspect-ratio:1/1;height:auto;padding:0;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#f3f7ff,#f7fbff 55%,#fff6ec);position:relative;overflow:hidden}
.product-cover img{width:auto;height:auto;max-width:100%;max-height:100%;object-fit:contain;display:block;transition:transform 0.55s var(--ease-out)}
/* 宽横图铺满工具类：main.js 检测到宽高比>1.35 的横图时挂上，用 cover 铺满方框避免大片留白（!important 覆盖 contain 规则与内联样式） */
img.obj-fill{width:100% !important;height:100% !important;max-width:none !important;max-height:none !important;object-fit:cover !important}
.product-card:hover .product-cover img{transform:scale(1.05)}
/* 玻璃质感覆盖层：对角高光 + 内侧亮边模拟玻璃反光（不模糊产品图本身）；hover 时高光扫过 */
.product-cover::after{
  content:"";position:absolute;inset:0;pointer-events:none;z-index:1;
  background:
    linear-gradient(115deg,rgba(255,255,255,0.34) 0%,rgba(255,255,255,0.12) 20%,rgba(255,255,255,0) 38%,rgba(255,255,255,0) 60%,rgba(255,255,255,0.16) 100%),
    linear-gradient(135deg,rgba(11,61,145,0.03),rgba(255,138,31,0.04));
  background-size:260% 100%,100% 100%;
  background-position:0% 0,0 0;
  box-shadow:inset 0 1px 0 rgba(255,255,255,0.55),inset 0 0 0 1px rgba(255,255,255,0.25);
  transition:background-position 0.9s var(--ease-out);
}
.product-card:hover .product-cover::after{background-position:100% 0,0 0}
/* 悬停时图片右下角浮现圆形箭头按钮，提示可点击查看详情（无文字，免多语言处理） */
.product-cover::before{
  content:"→";position:absolute;right:14px;bottom:14px;z-index:2;
  width:40px;height:40px;border-radius:50%;
  background:rgba(11,61,145,0.92);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-size:18px;line-height:1;
  opacity:0;transform:translateY(10px) scale(0.7);
  box-shadow:0 10px 20px rgba(11,61,145,0.35);
  transition:opacity 0.3s var(--ease-out),transform 0.35s var(--ease-spring);
  pointer-events:none;
}
.product-card:hover .product-cover::before{opacity:1;transform:translateY(0) scale(1)}
/* 卡片切换时逐张淡入（只动 opacity，避免覆盖悬停 transform） */
#panels .tab-panel.active .product-list .product-card{animation:productCardIn 0.5s var(--ease-out) both}
#panels .tab-panel.active .product-list .product-card:nth-child(2){animation-delay:0.06s}
#panels .tab-panel.active .product-list .product-card:nth-child(3){animation-delay:0.12s}
#panels .tab-panel.active .product-list .product-card:nth-child(4){animation-delay:0.18s}
#panels .tab-panel.active .product-list .product-card:nth-child(5){animation-delay:0.24s}
#panels .tab-panel.active .product-list .product-card:nth-child(6){animation-delay:0.30s}
@keyframes productCardIn{from{opacity:0}to{opacity:1}}
.product-body{padding:20px 22px 22px;flex:1;display:flex;flex-direction:column}
.product-body h4{margin:0 0 8px;color:var(--primary-dark);font-size:17px;font-weight:700}
/* 简介最多 2 行，保证同一排卡片高度整齐，把视觉焦点让给图片 */
.product-body p{color:var(--text-soft);font-size:13.5px;flex:1;margin:0 0 12px;line-height:1.65;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.product-body .specs{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:14px}
.product-body .spec{background:rgba(11,61,145,0.06);color:var(--primary);font-size:12px;padding:4px 10px;border-radius:6px;font-weight:500}
.product-body .more{color:var(--primary);font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:4px;transition:color 0.2s}
.product-body .more:hover{color:var(--accent)}

/* ===== 解决方案入口 ===== */
.solution-item{
  border-radius:var(--radius);padding:28px;color:#fff;position:relative;overflow:hidden;
  background:linear-gradient(135deg,var(--primary) 0%,var(--primary-light) 100%);
  transition:all 0.4s var(--ease-out);min-height:200px;
}
.solution-item:hover{transform:translateY(-6px);box-shadow:0 16px 40px rgba(11,61,145,0.3)}
.solution-item.orange{background:linear-gradient(135deg,#ef7607,#ffa94d)}
.solution-item.green{background:linear-gradient(135deg,#15803d,#22c55e)}
.solution-item.navy{background:linear-gradient(135deg,#072a66,#1e5fcf)}
.solution-item.teal{background:linear-gradient(135deg,#0f766e,#22d3ee)}
.solution-item.purple{background:linear-gradient(135deg,#5b21b6,#8b5cf6)}
.solution-item i{font-style:normal;display:flex;margin-bottom:12px}
/* 专业线性图标系统(Lucide 风格,currentColor 自动适配卡片底色) */
.ic{fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;display:block}
.solution-item i .ic{width:42px;height:42px}
.sol-hero .ic{width:36px;height:36px}
.card-icon .ic{width:26px;height:26px}
.solution-item h4{margin:0 0 8px;font-size:18px;font-weight:600}
.solution-item p{margin:0;font-size:14px;opacity:0.92;line-height:1.65}
.solution-item::after{content:"→";position:absolute;right:24px;bottom:24px;font-size:24px;opacity:0.5;transition:all 0.3s}
.solution-item:hover::after{opacity:1;right:16px}

/* ===== Logo 墙 ===== */
.logo-wall{display:grid;grid-template-columns:repeat(6,1fr);gap:20px;margin-top:30px}
.logo-box{
  background:var(--glass-mid);
  backdrop-filter:var(--glass-blur);border:1px solid var(--glass-border);
  border-radius:12px;height:90px;
  display:flex;align-items:center;justify-content:center;
  font-weight:600;color:var(--text-soft);
  transition:all 0.3s var(--ease-out);font-size:15px;letter-spacing:0.5px;
  box-shadow:var(--shadow-sm);
}
.logo-box:hover{border-color:var(--primary);color:var(--primary);box-shadow:var(--shadow);transform:translateY(-3px)}

/* ===== 通用 Page Hero ===== */
.page-hero{
  position:relative;padding:80px 0;color:var(--primary-dark);overflow:hidden;
  background:linear-gradient(120deg,#eaf2fe 0%,#d3e4fb 55%,#b7d0f2 100%);
}
.page-hero::after{
  content:"";position:absolute;inset:0;opacity:0.06;
  background-image:linear-gradient(rgba(255,255,255,0.35) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,0.35) 1px,transparent 1px);
  background-size:60px 60px;
}
.page-hero-inner{position:relative;z-index:2}
.page-hero h1{font-size:40px;margin:0 0 12px;font-weight:700;color:var(--primary-dark)}
.page-hero p{margin:0;font-size:16px;color:#3d5c8f;max-width:720px}
.breadcrumb{margin-top:16px;font-size:13px;color:#6f8cb8}
.breadcrumb a{color:#6f8cb8}
.breadcrumb a:hover{color:var(--primary)}
.page-hero-bg{position:absolute;inset:0;z-index:0;overflow:hidden;pointer-events:none}
.page-hero-bg img{width:100%;height:100%;object-fit:cover;display:block;opacity:0.18;mix-blend-mode:multiply}

/* ===== 时间轴（故事感版本） ===== */
.timeline{position:relative;padding:20px 0;margin:40px 0}
/* 动态轨道：底色浅 + 上层 fill 随滚动填充（卷轴展开） */
.timeline::before{content:"";position:absolute;left:50%;top:0;bottom:0;width:4px;border-radius:2px;background:rgba(11,61,145,0.10);transform:translateX(-50%)}
.tl-track{position:absolute;left:50%;top:0;bottom:0;width:4px;border-radius:2px;transform:translateX(-50%);overflow:hidden;z-index:1}
.tl-fill{position:absolute;left:0;top:0;width:100%;height:0;background:linear-gradient(180deg,var(--primary),var(--accent));transition:height 1s cubic-bezier(0.22,1,0.36,1);box-shadow:0 0 10px rgba(255,138,31,0.45)}
/* 填充顶部发光墨球（白→橙→蓝）+ 呼吸光晕 */
.tl-fill::after{content:"";position:absolute;left:50%;bottom:-7px;width:14px;height:14px;border-radius:50%;transform:translateX(-50%);background:radial-gradient(circle at 40% 35%,#fff 0%,var(--accent) 45%,var(--primary) 100%);box-shadow:0 0 12px rgba(255,138,31,0.85),0 0 28px rgba(255,138,31,0.4),0 10px 18px rgba(11,61,145,0.35);animation:tlInk 2.2s ease-in-out infinite}
@keyframes tlInk{0%,100%{transform:translateX(-50%) scale(1);opacity:0.95}50%{transform:translateX(-50%) scale(1.25);opacity:1}}
.tl-item{position:relative;width:50%;padding:20px 50px;box-sizing:border-box;z-index:2}
.tl-item.left{left:0;text-align:right}
.tl-item.right{left:50%}
/* 节点圆点 */
.tl-node{position:absolute;top:30px;width:20px;height:20px;border-radius:50%;background:#fff;border:2px solid rgba(11,61,145,0.25);box-shadow:0 0 0 4px rgba(11,61,145,0.06);display:flex;align-items:center;justify-content:center;transition:all 0.5s var(--ease-spring)}
.tl-node span{width:8px;height:8px;border-radius:50%;background:rgba(11,61,145,0.25);transition:all 0.5s var(--ease-spring)}
.tl-item.left .tl-node{right:-10px}
.tl-item.right .tl-node{left:-10px}
/* 激活态：闪光涟漪 + 持续脉冲 + 轻微放大 */
.tl-item.active .tl-node{border-color:var(--primary);background:var(--primary);box-shadow:0 0 0 6px rgba(11,61,145,0.15),0 0 16px rgba(255,138,31,0.5);transform:scale(1.05)}
.tl-item.active .tl-node span{background:var(--accent);transform:scale(1.4)}
.tl-item.active .tl-node::before{content:"";position:absolute;inset:-4px;border-radius:50%;border:2px solid var(--accent);opacity:0;animation:tlRipple 0.8s var(--ease-out) 1}
.tl-item.active .tl-node::after{content:"";position:absolute;inset:-6px;border-radius:50%;border:2px solid var(--accent);opacity:0;animation:tlPulse 2s var(--ease-out) infinite}
@keyframes tlRipple{0%{transform:scale(0.8);opacity:0.9}100%{transform:scale(3);opacity:0}}
@keyframes tlPulse{0%{transform:scale(0.9);opacity:0.8}100%{transform:scale(2);opacity:0}}
/* 卡片翻页式入场 + 文字分层出场 */
.tl-card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px 22px;box-shadow:var(--shadow-sm);opacity:0;transform:translateX(60px) rotateY(4deg);filter:blur(4px);transform-origin:left center;transition:opacity 0.7s var(--ease-out),transform 0.7s var(--ease-out),filter 0.7s var(--ease-out),box-shadow 0.3s}
.tl-item.left .tl-card{transform:translateX(-60px) rotateY(-4deg);transform-origin:right center}
.tl-item.active .tl-card{opacity:1;transform:translateX(0) rotateY(0);filter:blur(0)}
.tl-card:hover{box-shadow:var(--shadow-lg)}
.tl-item .year{font-size:30px;font-weight:800;color:var(--accent);margin-bottom:6px;font-family:"SF Pro Display","PingFang SC",sans-serif;letter-spacing:-0.5px;line-height:1;opacity:0;transform:scale(0.8);transition:opacity 0.5s var(--ease-spring) 0.15s,transform 0.5s var(--ease-spring) 0.15s}
.tl-item h4{margin:0 0 8px;color:var(--primary-dark);font-size:18px;opacity:0;transform:translateY(10px);transition:opacity 0.5s var(--ease-out) 0.25s,transform 0.5s var(--ease-out) 0.25s}
.tl-item p{color:var(--text-soft);margin:0;font-size:14.5px;line-height:1.75;opacity:0;transform:translateY(10px);transition:opacity 0.5s var(--ease-out) 0.35s,transform 0.5s var(--ease-out) 0.35s}
.tl-item.active .year{opacity:1;transform:scale(1)}
.tl-item.active h4{opacity:1;transform:translateY(0)}
.tl-item.active p{opacity:1;transform:translateY(0)}

/* ===== 资质卡片 ===== */
.cert-card{background:var(--glass-mid);backdrop-filter:var(--glass-blur);-webkit-backdrop-filter:var(--glass-blur);border:1px solid var(--glass-border);border-radius:var(--radius);text-align:center;padding:26px 16px;transition:transform 0.4s var(--ease-out),box-shadow 0.4s var(--ease-out),background 0.3s var(--ease-out);box-shadow:var(--glass-shadow)}
.cert-card:hover{transform:translateY(-4px);box-shadow:var(--glass-shadow-hover);border-color:rgba(255,255,255,0.85);background:var(--glass-strong)}
.cert-card i{font-size:48px;display:block;font-style:normal;margin-bottom:12px;line-height:0}
.cert-card i img{width:72px;height:72px;object-fit:cover;border-radius:10px;box-shadow:0 2px 10px rgba(11,61,145,0.12)}
.cert-card h4{margin:0 0 6px;color:var(--primary-dark);font-size:17px}
.cert-card p{margin:0;color:var(--text-muted);font-size:13px}

/* ===== 荣誉墙 / 供应链满铺图 ===== */
.honor-wall{
  position:relative;max-width:1280px;margin:0 auto;padding:0 24px;
  background:transparent;
}
.honor-wall img{
  display:block;width:100%;height:auto;border-radius:18px;margin:0 auto;
  -webkit-mask-image:linear-gradient(to right,transparent 0,#000 6%,#000 94%,transparent 100%),linear-gradient(to bottom,transparent 0,#000 8%,#000 92%,transparent 100%);
  -webkit-mask-composite:source-in;
  mask-image:linear-gradient(to right,transparent 0,#000 6%,#000 94%,transparent 100%),linear-gradient(to bottom,transparent 0,#000 8%,#000 92%,transparent 100%);
  mask-composite:intersect;
  transition:transform 0.6s var(--ease-out);
}
.honor-wall:hover img{transform:scale(1.01)}
@media(max-width:768px){.honor-wall{padding:0 14px}}

/* ===== 产品详情 ===== */
.tabs{display:flex;gap:6px;border-bottom:2px solid var(--line);margin-bottom:30px;flex-wrap:wrap}
.tab-btn{padding:12px 22px;border:none;background:transparent;color:var(--text-soft);cursor:pointer;font-size:15px;font-weight:500;border-bottom:3px solid transparent;margin-bottom:-2px;transition:all 0.2s}
.tab-btn:hover{color:var(--primary)}
.tab-btn.active{color:var(--primary);border-bottom-color:var(--primary);font-weight:600}
.tab-panel{display:none}
.tab-panel.active{display:block;animation:fadeIn 0.4s var(--ease-out)}
@keyframes fadeIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}

/* ===== 产品中心：产品页紧凑 Hero（保持与内页一致的渐变背景，仅压缩高度，让产品图更靠上） ===== */
.product-hero{padding:54px 0}
/* ===== 产品中心：二级胶囊导航（position:static 不跟随滚动） ===== */
.section-tabs{overflow:visible;padding:40px 0 80px}
.tabs.product-subnav{
  position:static;
  background:transparent;
  padding-top:0;margin:0 0 40px;gap:12px;
  box-shadow:none;border-bottom:none;
  justify-content:center;
}
.tabs.product-subnav .tab-btn{
  margin:0;border:1.5px solid rgba(11,61,145,0.14);border-radius:100px;
  background:rgba(255,255,255,0.72);
  padding:11px 26px;font-size:15px;color:var(--text-soft);font-weight:600;
  box-shadow:0 2px 10px rgba(11,61,145,0.06);
  backdrop-filter:var(--glass-blur);-webkit-backdrop-filter:var(--glass-blur);
  transition:all 0.25s var(--ease-out);
}
.tabs.product-subnav .tab-btn:hover{color:var(--primary);border-color:rgba(11,61,145,0.4);transform:translateY(-1px)}
.tabs.product-subnav .tab-btn.active{background:linear-gradient(135deg,var(--primary),var(--primary-light));color:#fff;border-color:transparent;box-shadow:0 10px 22px rgba(11,61,145,0.28)}
#panels .tab-panel{scroll-margin-top:100px}
.cat-head{margin:4px 0 28px;max-width:840px}
.cat-head h2{font-size:26px;color:var(--primary-dark);margin:0 0 10px;font-weight:700}
.cat-head p{font-size:15px;color:var(--text-soft);line-height:1.8;margin:0}
.product-block{margin-top:72px;scroll-margin-top:100px}
.product-block + .product-block{border-top:1px dashed var(--line);padding-top:64px}

/* ===== 产品中心：列表 ↔ 详情切换 ===== */
/* 默认：详情块全部隐藏，只显示产品卡片列表 */
#panels .product-block{display:none}
#panels .tab-panel.show-detail .cat-head,
#panels .tab-panel.show-detail .product-list{display:none}
#panels .tab-panel.show-detail .product-block.detail-active{display:block;animation:productIn .55s var(--ease-out) both}
#panels .tab-panel.show-detail .product-block{margin-top:8px;border-top:none;padding-top:0}
#panels .tab-panel.show-detail .product-block + .product-block{border-top:none;padding-top:0}
@keyframes productIn{from{opacity:0;transform:translateY(24px)}to{opacity:1;transform:translateY(0)}}
/* 返回产品列表按钮 */
.product-back{
  display:inline-flex;align-items:center;gap:6px;
  background:#fff;border:1px solid var(--line);color:var(--primary);
  font-family:inherit;font-size:14px;font-weight:600;
  padding:10px 20px;border-radius:10px;cursor:pointer;
  margin-bottom:24px;
  transition:all .25s var(--ease-out);
}
.product-back:hover{border-color:var(--primary);background:var(--bg-soft);transform:translateX(-3px);box-shadow:var(--shadow-sm)}
.product-detail{display:grid;grid-template-columns:1fr 1.1fr;gap:50px;align-items:start}
/* 详情主图：去掉内边距，横图 obj-fill 顶满方框，竖图/方图 contain 完整显示 */
.product-gallery{background:#f5f8ff;border-radius:var(--radius);aspect-ratio:1/1;position:relative;overflow:hidden;border:1px solid #d8e4f8;display:flex;align-items:center;justify-content:center;padding:0}
.product-gallery img{width:auto;height:auto;max-width:100%;max-height:100%;object-fit:contain;display:block}
/* 详情主图同款玻璃质感层，hover 时反光扫过 */
.product-gallery::after{
  content:"";position:absolute;inset:0;pointer-events:none;z-index:1;
  background:linear-gradient(115deg,rgba(255,255,255,0.30) 0%,rgba(255,255,255,0.10) 20%,rgba(255,255,255,0) 40%,rgba(255,255,255,0) 62%,rgba(255,255,255,0.14) 100%);
  background-size:260% 100%;
  background-position:0% 0;
  box-shadow:inset 0 1px 0 rgba(255,255,255,0.5),inset 0 0 0 1px rgba(255,255,255,0.22);
  transition:background-position 0.9s var(--ease-out);
}
.product-gallery:hover::after{background-position:100% 0}
/* 详情缩略图（原内联样式类化，视觉参数不变，便于 JS 统一处理横图铺满） */
.product-thumb{position:relative;aspect-ratio:1/1;background:#f5f7fb;border-radius:8px;overflow:hidden;border:1px solid var(--line);padding:10px}
.product-thumb img{width:100%;height:100%;object-fit:contain;display:block;background:#fff}
/* 缩略图玻璃质感：更淡的高光层，避免小图显脏 */
.product-thumb::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(115deg,rgba(255,255,255,0.22) 0%,rgba(255,255,255,0) 45%,rgba(255,255,255,0.10) 100%);
  box-shadow:inset 0 0 0 1px rgba(255,255,255,0.2);
}
.product-info h2{font-size:30px;color:var(--primary-dark);margin:0 0 8px}
.product-info .subtitle{color:var(--accent);font-weight:600;margin-bottom:20px;display:block}
.param-table{width:100%;border-collapse:collapse;margin:20px 0}
.param-table th,.param-table td{border-bottom:1px solid var(--line);padding:12px 14px;text-align:left;font-size:14px}
.param-table th{background:var(--bg-soft);color:var(--primary-dark);width:140px;font-weight:600}
.feature-list{list-style:none;padding:0;margin:20px 0;display:grid;grid-template-columns:1fr 1fr;gap:10px}
.feature-list li{padding-left:24px;position:relative;font-size:14px;color:var(--text-soft)}
.feature-list li::before{content:"✓";position:absolute;left:0;top:0;color:var(--accent2);font-weight:700}
.download-box{background:var(--bg-soft);border-left:4px solid var(--primary);border-radius:6px;padding:18px 22px;display:flex;justify-content:space-between;align-items:center;margin-top:20px}
.download-box span{color:var(--text-soft);font-size:14px}

/* ===== 工程案例 ===== */
.case-card{background:var(--glass-mid);backdrop-filter:var(--glass-blur);-webkit-backdrop-filter:var(--glass-blur);border:1px solid var(--glass-border);border-radius:var(--radius);overflow:hidden;transition:transform 0.5s var(--ease-out),box-shadow 0.5s var(--ease-out),background 0.4s var(--ease-out);box-shadow:var(--glass-shadow)}
.case-card:hover{transform:translateY(-4px);box-shadow:var(--glass-shadow-hover);border-color:rgba(255,255,255,0.85);background:var(--glass-strong)}
.case-cover{height:220px;background:#e0e9f8;position:relative;overflow:hidden}
.case-cover img{width:100%;height:100%;object-fit:cover;display:block;transition:transform 0.6s var(--ease-out)}
.case-card:hover .case-cover img{transform:scale(1.05)}
.case-cover .cat-tag{position:absolute;top:14px;left:14px;background:var(--accent);color:#fff;padding:4px 12px;border-radius:6px;font-size:12px;font-weight:600;z-index:2}
.case-body{padding:22px}
.case-body h4{margin:0 0 10px;color:var(--text);font-size:18px;font-weight:600}
.case-body p{color:var(--text-soft);font-size:14px;line-height:1.7;margin:0 0 14px;min-height:46px}
.case-meta{display:flex;justify-content:space-between;color:var(--text-muted);font-size:13px;padding-top:14px;border-top:1px dashed var(--line)}

/* ===== 服务支持 ===== */
.service-stage{background:var(--glass-mid);backdrop-filter:var(--glass-blur);-webkit-backdrop-filter:var(--glass-blur);border-radius:var(--radius);padding:40px;border:1px solid var(--glass-border);position:relative;box-shadow:var(--glass-shadow)}
.stage-badge{display:inline-block;padding:6px 16px;border-radius:100px;font-size:13px;font-weight:600;background:var(--primary);color:#fff;margin-bottom:18px}
.stage-badge.accent{background:var(--accent)}
.stage-badge.green{background:var(--accent2)}

/* ===== 全生命周期服务：左侧胶囊导航 + 内容面板 ===== */
.lifecycle{display:flex;align-items:center;gap:44px}
.lc-nav{flex:0 0 210px;display:flex;flex-direction:column;gap:14px}
.lc-btn{display:flex;flex-direction:column;gap:2px;padding:14px 22px;border:1px solid var(--line);border-radius:999px;background:var(--glass-soft);cursor:pointer;font-family:inherit;text-align:left;transition:all 0.35s var(--ease-smooth)}
.lc-btn .lc-num{font-size:11.5px;font-weight:800;letter-spacing:1.5px;color:var(--primary-light)}
.lc-btn .lc-label{font-size:16px;font-weight:700;color:var(--text)}
.lc-btn .lc-sub{font-size:12px;color:var(--text-muted)}
.lc-btn:hover{background:#eaf2fe;color:var(--primary-light);border-color:rgba(30,95,207,0.28);transform:translateX(5px)}
.lc-btn:hover .lc-label{color:var(--primary-light)}
.lc-btn.active{background:var(--primary);border-color:var(--primary);box-shadow:0 10px 26px -8px rgba(11,61,145,0.45)}
.lc-btn.active .lc-num{color:rgba(255,255,255,0.72)}
.lc-btn.active .lc-label,.lc-btn.active .lc-sub{color:#fff}
.lc-body{flex:1;min-width:0}
.lc-panel{display:none}
.lc-panel.active{display:block;animation:lifecycleIn 0.4s var(--ease-smooth) both}
@keyframes lifecycleIn{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:translateY(0)}}
@media(max-width:768px){
  .lifecycle{flex-direction:column;align-items:stretch;gap:22px}
  .lc-nav{flex:none;flex-direction:row;flex-wrap:wrap;gap:10px}
  .lc-btn{flex:1 1 auto;align-items:center;text-align:center;padding:10px 14px;gap:0}
  .lc-btn:hover{transform:none}
  .lc-btn .lc-sub{display:none}
}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:30px}
.step{text-align:center;padding:24px 16px;border-radius:12px;background:rgba(255,255,255,0.5);position:relative;border:1px solid var(--line-light)}
.step::after{content:"→";position:absolute;right:-14px;top:50%;transform:translateY(-50%);color:var(--primary-light);font-size:22px;font-weight:700}
.step:last-child::after{display:none}
.step .num{width:44px;height:44px;border-radius:50%;background:var(--primary);color:#fff;display:inline-flex;align-items:center;justify-content:center;font-weight:700;margin-bottom:12px;transition:transform 0.3s var(--ease-spring)}
.step:hover .num{transform:scale(1.1)}
.step h5{margin:0 0 6px;color:var(--primary-dark);font-size:15px}
.step p{margin:0;font-size:13px;color:var(--text-soft)}

/* ===== FAQ ===== */
.faq-list{max-width:900px;margin:0 auto}
.faq-item{background:var(--glass-mid);backdrop-filter:var(--glass-blur);-webkit-backdrop-filter:var(--glass-blur);border:1px solid var(--glass-border);border-radius:12px;margin-bottom:12px;overflow:hidden;transition:box-shadow 0.4s var(--ease-out),background 0.3s var(--ease-out);box-shadow:var(--shadow-sm)}
.faq-item:hover{box-shadow:var(--glass-shadow);background:var(--glass-strong)}
.faq-item.open{box-shadow:var(--glass-shadow);background:var(--glass-strong)}
.faq-q{padding:20px 24px;display:flex;justify-content:space-between;align-items:center;cursor:pointer;font-weight:600;color:var(--text);user-select:none;transition:background 0.2s}
.faq-q:hover{background:rgba(0,0,0,0.02)}
.faq-q::after{content:"+";font-size:22px;color:var(--primary);transition:transform 0.3s var(--ease-spring)}
.faq-item.open .faq-q::after{transform:rotate(45deg)}
.faq-a{padding:0 24px;max-height:0;overflow:hidden;transition:all 0.4s var(--ease-out);color:var(--text-soft);font-size:14.5px;line-height:1.75}
.faq-item.open .faq-a{padding:0 24px 22px;max-height:400px}

/* ===== 联系我们 ===== */
.contact-section{background:linear-gradient(180deg,var(--bg-soft) 0%,#fff 200px)}
/* 顶部联系卡：放大电话/邮箱为核心视觉焦点，统一玻璃卡片基底 */
.contact-hero-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-bottom:40px}
.ch-card{background:var(--glass-mid);backdrop-filter:var(--glass-blur);-webkit-backdrop-filter:var(--glass-blur);border:1px solid var(--glass-border);border-radius:16px;padding:32px 28px;display:flex;align-items:center;gap:20px;transition:transform 0.4s var(--ease-out),box-shadow 0.4s var(--ease-out),background 0.3s var(--ease-out);position:relative;overflow:hidden;box-shadow:var(--glass-shadow)}
.ch-card::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--primary),var(--primary-light));transform:scaleX(0);transform-origin:left;transition:transform 0.4s var(--ease-out)}
.ch-card:hover{transform:translateY(-4px);box-shadow:var(--glass-shadow-hover);border-color:rgba(255,255,255,0.85);background:var(--glass-strong)}
.ch-card:hover::before{transform:scaleX(1)}
/* 图标放大至 64px，强化视觉引导 */
.ch-icon{width:64px;height:64px;border-radius:16px;background:linear-gradient(135deg,rgba(11,61,145,0.10),rgba(11,61,145,0.04));display:flex;align-items:center;justify-content:center;font-size:30px;flex-shrink:0}
.ch-card:nth-child(2) .ch-icon{background:linear-gradient(135deg,rgba(255,138,31,0.12),rgba(255,138,31,0.05))}
.ch-card:nth-child(3) .ch-icon{background:linear-gradient(135deg,rgba(22,163,74,0.12),rgba(22,163,74,0.05))}
/* 标签缩小为核心信息的衬托 */
.ch-content h4{margin:0 0 6px;font-size:13px;color:var(--text-muted);font-weight:600;letter-spacing:0.5px;text-transform:uppercase}
/* 电话/邮箱放大为 26px 主视觉，颜色加深为品牌深蓝 */
.ch-content p{margin:0 0 4px;font-size:26px;font-weight:700;color:var(--primary-dark);line-height:1.2}
.ch-content p a{color:var(--primary-dark);text-decoration:none;transition:color 0.2s}
.ch-content p a:hover{color:var(--accent)}
.ch-content small{font-size:13px;color:var(--text-muted)}
.contact-main-grid{display:grid;grid-template-columns:1.3fr 1fr;gap:36px;align-items:start}
.contact-left{display:flex;flex-direction:column;gap:24px}
.contact-form-wrap{background:var(--glass-mid);backdrop-filter:var(--glass-blur);-webkit-backdrop-filter:var(--glass-blur);border:1px solid var(--glass-border);border-radius:16px;padding:40px;box-shadow:var(--glass-shadow);position:relative;overflow:hidden}
.cf-header{margin-bottom:32px}
.cf-badge{display:inline-block;padding:5px 14px;border-radius:100px;background:linear-gradient(135deg,#fff4e8,#ffe7cf);color:#c05400;font-size:12px;font-weight:600;margin-bottom:14px}
.cf-header h2{font-size:26px;margin:0 0 10px;color:var(--primary-dark);font-weight:700;line-height:1.35}
.cf-header p{margin:0;color:var(--text-soft);font-size:14.5px;line-height:1.8}
.cf-header p strong{color:var(--accent);font-weight:600}
.cf-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:16px}
.cf-field{margin-bottom:16px}
.cf-field label{display:block;font-size:13.5px;font-weight:600;color:var(--primary-dark);margin-bottom:8px}
.cf-field label i{font-style:normal;color:var(--accent);margin-left:2px}
.cf-field input,.cf-field select,.cf-field textarea{width:100%;padding:12px 16px;border:1.5px solid #e1e7f2;border-radius:10px;font-size:14.5px;color:var(--text);font-family:inherit;transition:all 0.2s;background:rgba(255,255,255,0.6);box-sizing:border-box}
.cf-field input:focus,.cf-field select:focus,.cf-field textarea:focus{outline:none;border-color:var(--primary-light);background:#fff;box-shadow:0 0 0 4px rgba(30,95,207,0.08)}
.cf-field textarea{resize:vertical;min-height:120px;line-height:1.7}
.cf-field input::placeholder,.cf-field textarea::placeholder{color:#a4b0c7}
.cf-agree{display:flex;align-items:flex-start;gap:10px;margin:8px 0 24px;font-size:13px;color:var(--text-soft);line-height:1.6}
.cf-agree input{margin-top:3px;flex-shrink:0;cursor:pointer}
.cf-agree label{cursor:pointer}
.cf-submit{width:100%;padding:16px 28px;border:none;border-radius:12px;background:linear-gradient(135deg,var(--primary) 0%,var(--primary-light) 100%);color:#fff;font-size:16px;font-weight:600;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:10px;transition:all 0.3s var(--ease-out);font-family:inherit;position:relative;overflow:hidden}
.cf-submit:hover{transform:translateY(-2px);box-shadow:0 8px 24px rgba(11,61,145,0.3)}
.cf-submit:active{transform:translateY(0)}
.cf-submit .btn-arrow{transition:transform 0.2s}
.cf-submit:hover .btn-arrow{transform:translateX(4px)}
.cf-submit.loading{opacity:0.7;cursor:not-allowed;pointer-events:none}
.cf-status{margin-top:16px;text-align:center;font-size:14px;min-height:24px;transition:all 0.3s}
.cf-status.success{color:#16a34a}
.cf-status.error{color:#ef4444}
.trust-bar{background:linear-gradient(135deg,#f8faff 0%,#fff7f0 100%);border-radius:14px;padding:24px 20px;display:flex;align-items:center;justify-content:space-around;border:1px solid #e6ecf7}
.trust-item{text-align:center}
.trust-num{display:block;font-size:32px;font-weight:700;color:var(--primary);line-height:1}
.trust-num span{font-size:16px;font-weight:600;margin-left:2px}
.trust-label{display:block;font-size:12.5px;color:var(--text-muted);margin-top:6px}
.trust-divider{width:1px;height:40px;background:linear-gradient(180deg,transparent,#d0dcf5,transparent)}
.contact-right{display:flex;flex-direction:column;gap:20px}
.info-card{background:var(--glass-mid);backdrop-filter:var(--glass-blur);-webkit-backdrop-filter:var(--glass-blur);border:1px solid var(--glass-border);border-radius:14px;padding:26px;transition:box-shadow 0.3s var(--ease-out),background 0.3s var(--ease-out);box-shadow:var(--shadow-sm)}
.info-card:hover{box-shadow:var(--glass-shadow);background:var(--glass-strong)}
.info-card h3{margin:0 0 18px;font-size:17px;color:var(--primary-dark);font-weight:600;padding-bottom:12px;border-bottom:1px solid var(--line);display:flex;align-items:center;gap:8px}
.info-card h3::before{content:"";width:3px;height:16px;background:var(--accent);border-radius:2px}
.info-list{list-style:none;padding:0;margin:0}
.info-list li{display:flex;gap:12px;padding:10px 0;border-bottom:1px dashed #eef1f7;font-size:14px}
.info-list li:last-child{border:none}
.il-label{min-width:40px;color:var(--text-muted);font-size:13px;flex-shrink:0}
.info-list li span:last-child{color:var(--text-soft)}
.office-list{list-style:none;padding:0;margin:0}
.office-list li{display:flex;gap:14px;padding:14px 0;border-bottom:1px dashed #eef1f7;align-items:flex-start}
.office-list li:last-child{border:none;padding-bottom:0}
.office-tag{display:inline-block;padding:3px 10px;border-radius:6px;background:rgba(11,61,145,0.08);color:var(--primary);font-size:12px;font-weight:600;flex-shrink:0;margin-top:2px}
.office-tag.hq{background:linear-gradient(135deg,#fff4e8,#ffe7cf);color:#c05400}
.office-list li strong{display:block;font-size:14.5px;color:var(--primary-dark);margin-bottom:3px}
.office-list li p{margin:0;font-size:13px;color:var(--text-soft);line-height:1.6}
.map-card{padding:0;overflow:hidden}
.map-card .map-box{height:220px;border-radius:0;border:none;margin:0;border-bottom:1px solid var(--line)}
.map-actions{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line)}
.map-btn{display:flex;align-items:center;justify-content:center;gap:6px;padding:12px;font-size:13.5px;font-weight:500;background:#fff;color:var(--primary-dark);transition:all 0.2s}
.map-btn:hover{background:var(--bg-soft);color:var(--primary)}
.map-btn.secondary:hover{color:var(--accent)}
.map-btn span{font-size:16px}
.quick-links{display:flex;flex-direction:column;gap:12px}
.ql-item{display:flex;align-items:center;gap:14px;background:var(--glass-mid);backdrop-filter:var(--glass-blur);-webkit-backdrop-filter:var(--glass-blur);border:1px solid var(--glass-border);border-radius:12px;padding:16px 20px;text-decoration:none;transition:transform 0.3s var(--ease-out),box-shadow 0.3s var(--ease-out),background 0.3s var(--ease-out);box-shadow:var(--shadow-sm)}
.ql-item:hover{transform:translateX(4px);box-shadow:var(--glass-shadow);background:var(--glass-strong)}
.ql-icon{width:44px;height:44px;border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:20px;flex-shrink:0}
.ql-item.orange .ql-icon{background:linear-gradient(135deg,rgba(255,138,31,0.1),rgba(255,138,31,0.05))}
.ql-item.blue .ql-icon{background:linear-gradient(135deg,rgba(11,61,145,0.08),rgba(11,61,145,0.04))}
.ql-item div{flex:1}
.ql-item strong{display:block;font-size:14.5px;color:var(--primary-dark);margin-bottom:2px}
.ql-item small{font-size:12px;color:var(--text-muted)}
.ql-arrow{color:var(--text-muted);transition:all 0.2s;font-size:14px}
.ql-item:hover .ql-arrow{color:var(--accent);transform:translateX(3px)}

/* ===== 页脚 ===== */
.footer{background:var(--bg-dark);color:#aab7d1;padding:60px 0 0}
.footer-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:40px}
.footer h5{color:#fff;font-size:16px;margin:0 0 20px;padding-bottom:12px;border-bottom:1px solid #1e2b48;font-weight:600}
.footer ul{list-style:none;padding:0;margin:0}
.footer li{padding:6px 0;font-size:14px}
.footer a:hover{color:#fff}
.footer-brand .brand{color:#fff}
.footer-brand .brand small{color:#8194b8}
.footer-brand p{font-size:14px;line-height:1.8;margin:18px 0;color:#8ea4ca}
.footer-contact li{display:flex;gap:10px;align-items:flex-start}
.footer-contact li::before{content:"";min-width:18px;text-align:center}
.footer-contact li:nth-child(1)::before{content:"📞"}
.footer-contact li:nth-child(2)::before{content:"✉️"}
.footer-contact li:nth-child(3)::before{content:"📍"}
.qr-row{display:flex;gap:20px;margin-top:10px;flex-wrap:wrap}
.qr{width:96px;background:#fff;border-radius:6px;text-align:center;color:var(--primary-dark);font-weight:900;box-shadow:inset 0 0 0 1px var(--line);padding:6px 4px 8px}
.qr img{width:84px;height:84px;object-fit:cover;display:block;margin:0 auto 4px;border-radius:3px;border:1px solid #dbe7fd}
.qr small{display:block;font-size:10px;color:var(--text-muted);font-weight:500;line-height:1.2}
.copy-bar{border-top:1px solid #1e2b48;padding:20px 0;font-size:13px;color:#7b8bb0;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:10px}
.copy-bar a{margin-left:20px}
.copy-bar a:hover{color:#fff}

/* 二维码卡片 */
.qr-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.qr-card{background:#fff;border-radius:14px;padding:20px 20px 18px;text-align:center;border:1px solid #e1e9fc;box-shadow:0 4px 14px rgba(11,61,145,0.05);position:relative}
.qr-num{position:absolute;top:10px;left:12px;width:28px;height:28px;border-radius:50%;background:linear-gradient(135deg,#0b3d91,#2971ea);color:#fff;font-weight:700;line-height:28px;font-size:14px;box-shadow:0 4px 10px rgba(41,113,234,0.35)}
.qr-img{width:220px;max-width:100%;height:auto;aspect-ratio:1/1;border:1px solid #e1e9fc;border-radius:10px;margin:6px auto 10px;padding:4px;background:#fff}
.qr-title{font-weight:600;color:var(--primary-dark);font-size:15px;margin-bottom:6px}
.qr-link{display:inline-block;font-size:12.5px;color:var(--primary);font-weight:600;word-break:break-all;padding:5px 10px;border-radius:6px;background:#eef3ff;border:1px solid #d4e1ff;transition:all 0.2s;text-decoration:none}
.qr-link:hover{background:#dce8ff;color:#062e6f}
.qr-link.dl{background:linear-gradient(135deg,#0b3d91,#2971ea);color:#fff;border-color:transparent}
.qr-link.dl:hover{filter:brightness(1.08);color:#fff}

/* ===== 图片兜底 ===== */
img.broken-fallback{background:linear-gradient(135deg,#f0f4ff,#fff5eb);min-height:80px;position:relative}
img.broken-fallback::after{content:"无图";position:absolute;inset:0;display:flex;align-items:center;justify-content:center;color:#667fa8;font-size:12px;font-weight:600;letter-spacing:1px}

/* ===== 响应式 ===== */
@media(max-width:1024px){
  .card-grid.cols-4{grid-template-columns:repeat(2,1fr)}
  .logo-wall{grid-template-columns:repeat(3,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .banner-inner{padding:100px 0 60px}
  .banner-text h1{font-size:40px}
  .banner-controls{gap:14px}
  .banner-arrow{width:38px;height:38px;font-size:16px}
  .banner-scroll-hint{bottom:90px}
  .product-detail{grid-template-columns:1fr;gap:30px}
  .contact-main-grid{grid-template-columns:1fr}
  .contact-hero-cards{grid-template-columns:1fr}
  .timeline::before{left:20px}
  .tl-track{left:20px}
  .tl-item,.tl-item.left,.tl-item.right{width:100%;left:0;text-align:left;padding:16px 0 16px 56px}
  .tl-item.left .tl-node,.tl-item.right .tl-node{left:11px;right:auto}
  .tl-card{transform:translateX(20px)}
  .tl-item.left .tl-card{transform:translateX(20px)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .step::after{display:none}
  .qr-grid{grid-template-columns:1fr 1fr;gap:14px}
  /* 平板端导航切换为移动菜单 */
  .mobile-toggle{display:block}
  .nav-actions{display:none}
  .nav-menu{
    display:none;position:absolute;top:100%;left:0;right:0;
    background:rgba(255,255,255,0.92);backdrop-filter:blur(22px) saturate(1.6);-webkit-backdrop-filter:blur(22px) saturate(1.6);
    flex-direction:column;padding:10px 16px;gap:0;
    box-shadow:0 8px 20px rgba(0,0,0,0.08);
    max-height:calc(100vh - 120px);overflow-y:auto;
    -webkit-overflow-scrolling:touch;z-index:99;
  }
  .nav-menu.open{display:flex}
  .nav-menu>li{width:100%}
  .nav-menu>li>a{
    display:flex;justify-content:space-between;align-items:center;
    padding:12px 14px;font-size:15px;border-radius:8px;
    border-bottom:1px solid var(--line-light);
  }
  .nav-menu>li>a::after{content:"▾";font-size:12px;color:var(--text-muted);transition:transform 0.25s var(--ease-out)}
  .nav-menu>li>a.no-dropdown::after{display:none}
  .nav-menu>li.expanded>a::after{transform:rotate(180deg)}
  .nav-menu .dropdown{
    display:none;position:static;box-shadow:none;border:none;
    padding:0 0 4px 14px;background:none;backdrop-filter:none;
    opacity:1;visibility:visible;transform:none;
  }
  .nav-menu li.expanded .dropdown{display:block}
  .nav-menu .dropdown a{padding:10px 14px;font-size:14px;border-bottom:1px solid var(--line-light)}
  .mobile-lang-host{display:block;padding:10px 14px 14px}
  .mobile-lang-host .lang-switch-v2{display:block}
  .mobile-lang-host .lang-menu-btn{width:100%;justify-content:center;padding:11px 14px;font-size:14px}
  .mobile-lang-host .lang-menu{left:0;right:0;min-width:0;text-align:center}
  .mobile-lang-host .lang-menu-item{justify-content:center}
}
/* ===== 多语言长词适配：德语复合词 / 俄语长词等，防止卡片内文本溢出被裁切 ===== */
.card h2,.card h3,.card h4,.card p,.case-card h4,.case-card p,.faq-q,.faq-a{overflow-wrap:break-word;word-break:break-word}
.product-gallery + .card-grid .card{padding:20px 12px !important}
.product-gallery + .card-grid .card p{font-size:12.5px;line-height:1.4;overflow-wrap:anywhere}
@media(max-width:720px){
  .section{padding:50px 0}
  .section-title h2{font-size:24px}
  .nav-inner{height:54px}
  .brand .logo{width:40px;height:40px}
  .brand small{font-size:13px}
  .nav-menu{top:100%;max-height:calc(100vh - 100px)}
  /* 移动端胶囊导航允许换行，保持居中 */
  .tabs.product-subnav{gap:8px;margin:0 0 26px}
  .tabs.product-subnav .tab-btn{padding:9px 16px;font-size:13.5px}
  #panels .tab-panel{scroll-margin-top:150px}
  .product-block{scroll-margin-top:150px;margin-top:48px}
  .product-block + .product-block{padding-top:44px}
  #panels .tab-panel.show-detail .product-block{margin-top:8px}
  .product-back{margin-bottom:18px}
  .cat-head h2{font-size:22px}
  .banner{min-height:100vh;padding:0}
  .banner-inner{padding-top:80px;gap:24px}
  .banner-text h1{font-size:24px}
  .banner-text p{font-size:13.5px}
  .banner-btns{flex-direction:column;gap:10px}
  .banner-btns .btn{width:100%;justify-content:center;padding:12px 24px;font-size:14px}
  .banner-visual{aspect-ratio:3/2}
  .banner-arrow{width:32px;height:32px;font-size:14px}
  .banner-controls{bottom:20px;gap:10px}
  .banner-counter{font-size:11px;min-width:36px}
  .banner-counter .cur{font-size:14px}
  .banner-dots span{width:6px;height:6px}
  .banner-dots span.active{width:24px}
  .banner-scroll-hint{display:none}
  .card-grid.cols-4,.card-grid.cols-3,.card-grid.cols-2{grid-template-columns:1fr}
  .logo-wall{grid-template-columns:repeat(2,1fr);gap:10px}
  .logo-box{height:64px;font-size:12px}
  .footer-grid{grid-template-columns:1fr}
  .footer{padding:36px 0 0}
  .page-hero h1{font-size:24px}
  .page-hero p{font-size:13.5px}
  .page-hero{padding:50px 0}
  .product-hero{padding:38px 0}
  .form-row{grid-template-columns:1fr}
  .feature-list{grid-template-columns:1fr}
  .product-info h2{font-size:20px}
  .section-title{margin-bottom:24px}
  .section-title h2{font-size:22px}
  .section-title p{font-size:13px}
  .glass-card{padding:20px 16px}
  .glass-card h3{font-size:15px}
  .glass-card p{font-size:13px}
  .glass-card .card-icon{width:44px;height:44px;font-size:22px;margin-bottom:14px}
  .product-body{padding:16px 12px}
  .product-body h4{font-size:15px}
  .product-body p{font-size:12.5px}
  .product-body .spec{font-size:11px;padding:3px 8px}
  /* 移动端取消固定高度，方形图区靠 aspect-ratio 自适应，图片仍完整展示 */
  .product-cover{padding:14px}
  .solution-item{padding:20px;min-height:auto}
  .solution-item h4{font-size:15px}
  .solution-item p{font-size:12.5px}
  .solution-item i .ic{width:30px;height:30px}
  .contact-form-wrap{padding:22px 16px}
  .cf-header h2{font-size:18px}
  .cf-header p{font-size:13px}
  .cf-row{grid-template-columns:1fr;gap:12px}
  .cf-field input,.cf-field select,.cf-field textarea{font-size:14px;padding:11px 14px}
  .cf-submit{font-size:15px;padding:14px 24px}
  /* 移动端联系卡：图标缩小、电话字号适配窄屏 */
  .ch-card{padding:18px 16px;flex-direction:row;text-align:left;gap:14px;align-items:center}
  .ch-card .ch-icon{width:48px;height:48px;font-size:24px}
  .ch-content p{font-size:20px}
  .ch-content h4{font-size:12px}
  .contact-hero-cards{grid-template-columns:1fr;gap:12px}
  .copy-bar{flex-direction:column;align-items:flex-start;gap:8px;text-align:left;font-size:12px}
  .copy-bar a{margin-left:0;margin-right:14px;font-size:12px}
  .footer-contact li{font-size:12.5px}
  .footer-brand p{font-size:13px}
  .btn{font-size:14px;padding:12px 24px}
}

/* ===== 大屏自适应（≥1680px，32寸曲面屏等） ===== */
@media (min-width:1680px){
  .container{width:min(1400px,90%)}
  .banner-inner{width:min(1400px,90%)}
  .section-title h2{font-size:40px}
}