/* ============================================================
   灵智科创官网 · 设计系统 v2.0（tec-do 风格复刻）
   语言：白底浅色主题 + 电光蓝主色 + MiSans 大字排版 + 大圆角卡片
   取自 tec-do.com 实际 CSS：
   --main:#0012F0  渐变 #0026E6→#00E1FF(174deg)  青 #5BD0FB
   深藏青 #000064  浅蓝底 #F2F6FF  圆角 2rem  字体 MiSans
   ============================================================ */

:root{
  --main:       #0012F0;   /* 电光蓝 · 主色 */
  --main-deep:  #0026E6;   /* 渐变起点 */
  --cyan:       #00E1FF;   /* 渐变终点 */
  --sky:        #5BD0FB;   /* 青 · 点缀 */
  --navy:       #000064;   /* 深藏青 */
  --navy-deep:  #04082E;   /* 近黑藏青 · Hero/Footer 底 */
  --ink:        #0E0E18;   /* 近黑 · 正文标题 */
  --gray:       rgba(0,0,0,.5);
  --gray-light: rgba(14,14,24,.5);
  --white:      #FFFFFF;
  --bg-soft:    #F5F8FD;   /* 浅蓝区块底 */
  --line:       #EDF0F6;
  --blue-text:  #173162;   /* 浅蓝灰标题辅助 */
  --red:        #FC0505;
  --grad:       linear-gradient(174deg,#0026E6 0%,#00E1FF 100%);
  --radius:     20px;      /* tec-do 大圆角卡片 */
  --radius-sm:  10px;
  --shadow:     0 6px 24px rgba(16,24,64,.05);
  --shadow-lg:  0 18px 44px rgba(16,24,64,.09);
  --font: "MiSans","MiSans VF","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --ease: cubic-bezier(.22,.61,.36,1);
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:var(--font);background:var(--white);color:var(--ink);
  line-height:1.7;-webkit-font-smoothing:antialiased;overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:var(--main);text-decoration:none;transition:color .25s var(--ease)}
a:hover{color:var(--navy)}
ul{list-style:none}
button{font-family:inherit;cursor:pointer}

.container{max-width:1280px;margin:0 auto;padding:0 32px}
.center{text-align:center;margin-top:36px}
.center-text{margin-left:auto;margin-right:auto}
.grid{display:grid;gap:24px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
.two-col{display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:start}

/* ---------- 文本 ---------- */
.grad-text{
  background:var(--grad);-webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;color:transparent;
}
h2 strong,.hero-title strong,.page-title strong{font-weight:inherit}
h2 strong,.hero-title strong{
  background:var(--grad);-webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;
}
.eyebrow{
  font-size:12px;letter-spacing:.2em;color:var(--main);
  text-transform:uppercase;margin-bottom:14px;font-weight:500;
}
.eyebrow.light{color:var(--sky)}
h1,h2,h3,h4{font-weight:600;line-height:1.3}
h2{font-size:38px;margin-bottom:16px;letter-spacing:-.015em}
h3{font-size:19px;margin-bottom:8px}
.lead{font-size:16.5px;color:var(--gray-light);max-width:820px;margin-bottom:36px}
.lead.light-text{color:rgba(255,255,255,.72)}
.mini{font-size:12.5px;color:var(--gray-light);margin-top:16px}
.dark .mini{color:rgba(255,255,255,.55)}

/* ---------- 按钮（tec-do 滑动填充式） ---------- */
.btn{
  position:relative;display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 28px;border-radius:999px;font-size:14px;font-weight:500;letter-spacing:.02em;
  border:1px solid transparent;white-space:nowrap;
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),color .3s var(--ease),background-position .45s var(--ease);
  background-repeat:no-repeat;
}
/* hover 填充动画用双层背景滑动实现（层在文字下方，不会盖住文字） */
.btn:hover{transform:translateY(-2px);background-position:0 0}
.btn-lg{padding:14px 36px;font-size:15px}
.btn-sm{padding:9px 20px;font-size:13px}
.btn-block{width:100%}
/* 主按钮：品牌蓝渐变底，hover 深藏青从左滑入加深（无投影，避免浅背景上出现"细线"） */
.btn-primary{
  color:#fff;
  background-image:linear-gradient(174deg,#000064,#000064),var(--grad);
  background-size:200% 100%,100% 100%;
  background-position:201% 0,0 0;
}
.btn-primary:hover{color:#fff}
/* 蓝底主按钮（深色区用） */
.btn-blue{
  color:#fff;background-color:var(--main);
  background-image:linear-gradient(174deg,#0012B8 0%,#001BFF 100%);
  background-size:200% 100%;background-position:201% 0;
}
.btn-blue:hover{color:#fff}
/* 白底描边（深色区用） */
.btn-ghost{
  border-color:rgba(255,255,255,.55);color:#fff;
  background-image:linear-gradient(#fff,#fff);
  background-size:200% 100%;background-position:201% 0;
}
.btn-ghost:hover{color:var(--ink);border-color:#fff}
/* 白底描边（浅色区用） */
.btn-ghost-dark{
  border-color:var(--ink);color:var(--ink);
  background-image:var(--grad);
  background-size:200% 100%;background-position:201% 0;
}
.btn-ghost-dark:hover{color:#fff;border-color:transparent}
/* 深色区浅蓝描边 */
.btn-outline-light{
  border-color:rgba(91,208,251,.6);color:var(--sky);
  background-image:linear-gradient(rgba(91,208,251,.14),rgba(91,208,251,.14));
  background-size:200% 100%;background-position:201% 0;
}
.btn-outline-light:hover{color:var(--sky)}

/* ---------- 标签 ---------- */
.tag{
  display:inline-block;font-size:12px;padding:4px 13px;border-radius:999px;
  background:var(--bg-soft);color:var(--main);margin-bottom:14px;font-weight:500;letter-spacing:.04em;
}

/* ---------- 卡片 ---------- */
/* ---------- 卡片（tec-do 式玻璃渐变卡） ---------- */
.card{
  background:linear-gradient(180deg,rgba(255,255,255,.96) 0%,rgba(242,246,255,.85) 100%);
  border:1px solid rgba(255,255,255,.9);
  border-radius:var(--radius);
  padding:36px 32px;
  box-shadow:0 14px 36px rgba(31,58,147,.08);
  backdrop-filter:blur(8px);
  transition:transform .35s var(--ease),box-shadow .35s var(--ease);
}
.card:hover{transform:translateY(-4px);box-shadow:0 24px 52px rgba(31,58,147,.14)}
.card h3{font-size:18px}
.card p{font-size:14.5px;color:var(--gray-light)}
.card ul{margin-top:16px}
.card li{
  position:relative;padding:9px 14px 9px 30px;font-size:13.5px;color:#3A4258;line-height:1.6;
  background:rgba(222,236,255,.5);border-radius:10px;margin-top:8px;
}
.card li::before{content:"";position:absolute;left:14px;top:50%;transform:translateY(-50%);width:6px;height:6px;border-radius:50%;background:var(--sky)}

.dark-card{
  background:linear-gradient(180deg,rgba(255,255,255,.95) 0%,rgba(243,247,255,.85) 100%);
  border-color:rgba(255,255,255,.95);
  box-shadow:0 14px 36px rgba(31,58,147,.08);backdrop-filter:blur(8px);
}
.dark-card h3{color:var(--ink)}
.dark-card p,.dark-card li{color:#4A5474}
.dark-card li::before{background:var(--main)}
.dark-card:hover{border-color:rgba(0,38,230,.28);box-shadow:0 24px 52px rgba(31,58,147,.16)}
.dark .mini{color:#4A5474}

.deliver{display:block;margin-top:14px;font-size:12.5px;color:var(--main);letter-spacing:.03em;font-weight:600}
.dark .deliver,.dark-card .deliver{color:var(--main)}

/* ---------- 区块 ---------- */
.section{padding:116px 0}
.section.dark{
  /* 原深藏青带 → 首页通道带同款浅蓝（视觉统一，文字自动转深） */
  background:
    radial-gradient(900px 480px at 85% -10%,rgba(0,120,255,.09),transparent 62%),
    radial-gradient(760px 420px at 8% 110%,rgba(0,190,255,.08),transparent 62%),
    linear-gradient(165deg,#EDF3FF 0%,#E2EBFF 55%,#EBF3FF 100%);
  color:#39415E;
}
.section.dark h2,.section.dark h3{color:var(--ink)}
.section.dark .eyebrow.light{color:var(--main)}
.section.dark .light-text,.section.dark .mini{color:#4A5474}
.section.soft{background:linear-gradient(180deg,#F3F7FF 0%,#EEF2FE 100%)}

/* ============================================================
   头部导航（tec-do 式：顶部透明白字，滚动后浮现白色胶囊）
   ============================================================ */
.site-header{
  position:fixed;top:16px;left:50%;transform:translateX(-50%);z-index:100;
  width:calc(100% - 32px);
  background:transparent;border:1px solid transparent;border-radius:999px;
  box-shadow:none;
  transition:background .4s var(--ease),box-shadow .4s var(--ease),border-color .4s var(--ease);
}
.site-header.solid{
  background:rgba(255,255,255,.88);
  backdrop-filter:blur(20px) saturate(1.4);-webkit-backdrop-filter:blur(20px) saturate(1.4);
  border-color:rgba(255,255,255,.75);
  box-shadow:0 10px 34px rgba(16,24,64,.10);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:64px;gap:20px;padding:0 16px 0 24px}
/* header-inner 同时挂了 container 类，解除其 max-width 限制让导航通栏铺开 */
.site-header .container{max-width:none;padding:0 20px}
.brand{display:flex;align-items:center;gap:11px}
.brand-logo{height:36px;width:auto;display:block}
.footer-logo{height:40px}
.brand-text{color:#fff;font-size:16px;font-weight:600;display:flex;flex-direction:column;line-height:1.2;text-shadow:0 2px 14px rgba(0,10,60,.35)}
.brand-text em{font-style:normal;font-size:9.5px;letter-spacing:.28em;color:var(--sky);font-weight:500}
.main-nav{display:flex;gap:2px}
.main-nav a{
  color:rgba(255,255,255,.88);font-size:14px;padding:8px 15px;border-radius:999px;font-weight:500;
  text-shadow:0 2px 14px rgba(0,10,60,.3);
  transition:all .25s var(--ease);
}
.main-nav a:hover{color:#fff;background:rgba(255,255,255,.14)}
.main-nav a.active{color:#fff;background:rgba(255,255,255,.18);font-weight:600}
.site-header.solid .brand-text{color:var(--ink);text-shadow:none}
.site-header.solid .brand-text em{color:var(--main)}
.site-header.solid .main-nav a{color:#3A4258;text-shadow:none}
.site-header.solid .main-nav a:hover{color:var(--main);background:var(--bg-soft)}
.site-header.solid .main-nav a.active{color:var(--main);background:rgba(0,38,230,.08)}
.header-right{display:flex;align-items:center;gap:14px}
.lang-switch{color:rgba(255,255,255,.8);font-size:13px;text-shadow:0 2px 14px rgba(0,10,60,.3)}
.lang-switch i{font-style:normal;color:rgba(255,255,255,.35);margin:0 4px}
.lang-switch a{color:rgba(255,255,255,.65)}
.lang-switch a:hover{color:#fff}
.site-header.solid .lang-switch{color:var(--gray-light);text-shadow:none}
.site-header.solid .lang-switch i{color:var(--line)}
.site-header.solid .lang-switch a{color:var(--gray)}
.site-header.solid .lang-switch a:hover{color:var(--main)}
/* 顶部透明态：全站 Hero 已统一为浅色视频底，导航统一用深色文字（tec-do 式） */
.site-header:not(.solid) .brand-text{color:#0B1230;text-shadow:none}
.site-header:not(.solid) .brand-text em{color:var(--main)}
.site-header:not(.solid) .main-nav a{color:#28304A;text-shadow:none}
.site-header:not(.solid) .main-nav a:hover{color:var(--main);background:rgba(0,38,230,.07)}
.site-header:not(.solid) .main-nav a.active{color:#fff;background:var(--grad);box-shadow:0 4px 14px rgba(0,38,230,.25)}
.site-header:not(.solid) .lang-switch{color:#3A4258;text-shadow:none}
.site-header:not(.solid) .lang-switch i{color:#9AA5C0}
.site-header:not(.solid) .lang-switch a{color:#28304A}
.site-header:not(.solid) .lang-switch a:hover{color:var(--main)}
.site-header:not(.solid) .nav-toggle span{background:var(--ink)}
.nav-cta-mobile{display:none}
.nav-toggle{display:none;background:rgba(255,255,255,.62);border:1px solid rgba(0,38,230,.10);border-radius:11px;width:38px;height:38px;flex:0 0 auto;flex-direction:column;align-items:center;justify-content:center;gap:5px;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}
.nav-toggle span{display:block;width:17px;max-width:17px;flex:0 0 2px;height:2px;background:#fff;border-radius:2px;transition:all .3s}
.site-header.solid .nav-toggle span{background:var(--ink)}

/* ============================================================
   首屏 Loading（tec-do 三段式：光斑背景 → 品牌/标语渐显 → 模糊揭开）
   ============================================================ */
.loading-mask{
  position:fixed;inset:0;z-index:9999;overflow:hidden;
  background:linear-gradient(160deg,#EAF1FF 0%,#DEE9FF 45%,#E8F3FF 100%);
  display:flex;align-items:center;justify-content:center;
  transition:opacity .9s var(--ease),visibility .9s,filter .9s var(--ease),transform .9s var(--ease);
}
/* 收场：整层轻微放大 + 虚化消散，露出后面变清晰的 Hero */
.loading-mask.done{opacity:0;visibility:hidden;filter:blur(28px);transform:scale(1.06)}
/* 漂浮光斑（tec-do loadBg 同氛围） */
.loading-blob{position:absolute;border-radius:50%;filter:blur(70px);opacity:.75;pointer-events:none}
.loading-blob.b1{width:520px;height:520px;left:-120px;top:-140px;background:radial-gradient(circle,rgba(0,120,255,.34),transparent 65%);animation:blobDrift 9s ease-in-out infinite alternate}
.loading-blob.b2{width:620px;height:620px;right:-180px;bottom:-200px;background:radial-gradient(circle,rgba(0,225,255,.30),transparent 65%);animation:blobDrift 11s ease-in-out infinite alternate-reverse}
.loading-blob.b3{width:420px;height:420px;right:14%;top:-120px;background:radial-gradient(circle,rgba(90,110,255,.22),transparent 65%);animation:blobDrift 13s ease-in-out infinite alternate}
@keyframes blobDrift{
  from{transform:translate(0,0) scale(1)}
  to{transform:translate(70px,50px) scale(1.12)}
}
.loading-inner{text-align:center;position:relative;padding:0 24px}
.loading-logo{
  height:74px;width:auto;display:block;margin:0 auto 30px;
  filter:drop-shadow(0 14px 34px rgba(0,38,230,.18));
  animation:logoPop 1s .05s var(--ease) both;
}
@keyframes logoPop{
  from{opacity:0;transform:translateY(22px) scale(.84)}
  to{opacity:1;transform:translateY(0) scale(1)}
}
.loading-eyebrow{
  font-size:12px;letter-spacing:.42em;color:var(--main);text-transform:uppercase;font-weight:600;
  animation:riseIn .9s .1s var(--ease) both;
}
.loading-slogan{
  color:var(--ink);font-size:clamp(30px,4.6vw,52px);font-weight:600;letter-spacing:.02em;line-height:1.3;
  margin-top:20px;
  background:linear-gradient(174deg,#0B1230 0%,#0B1230 34%,#0026E6 82%,#0067F0 100%);
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
  animation:sloganIn 1.1s .3s var(--ease) both;
}
.loading-slogan em{
  font-style:normal;
  background:linear-gradient(174deg,#0026E6 0%,#00A8E8 100%);
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
}
.loading-en{
  color:rgba(20,32,80,.55);font-size:12.5px;letter-spacing:.34em;text-transform:uppercase;
  margin-top:18px;animation:riseIn .8s .3s var(--ease) both;
}
.loading-bar{display:block;width:240px;height:2px;background:rgba(0,38,230,.12);margin:38px auto 0;position:relative;overflow:hidden;border-radius:2px;animation:riseIn .8s .4s var(--ease) both}
.loading-bar i{position:absolute;left:0;top:0;height:100%;width:0;background:var(--grad);animation:loadBar 1.35s .35s var(--ease) forwards}
.loading-percent{
  display:block;margin-top:16px;font-size:14px;font-weight:600;letter-spacing:.12em;
  color:var(--main);font-variant-numeric:tabular-nums;animation:riseIn .8s .45s var(--ease) both;
}
.loading-corner{
  position:absolute;bottom:26px;left:0;right:0;text-align:center;
  font-size:10.5px;letter-spacing:.3em;color:rgba(20,32,80,.35);text-transform:uppercase;
  animation:riseIn .8s .55s var(--ease) both;
}
@keyframes loadBar{to{width:100%}}
@keyframes riseIn{from{opacity:0;transform:translateY(22px)}to{opacity:1;transform:translateY(0)}}
/* 大标语：字距收拢 + 上浮（tec-do 品牌字入场感） */
@keyframes sloganIn{
  from{opacity:0;transform:translateY(30px);letter-spacing:.14em}
  to{opacity:1;transform:translateY(0);letter-spacing:.02em}
}

/* ---------- Hero 入场（loading 揭开后的三段浮入） ---------- */
.hero-video{transition:filter 1.3s var(--ease),transform 1.3s var(--ease)}
body:not(.entered) .hero-video{filter:blur(22px);transform:scale(1.06)}
body:not(.entered) .hero-stage{opacity:0;transform:translateY(26px)}
body:not(.entered) .hero-dots{opacity:0}
body:not(.entered) .hero-trustbar{opacity:0;transform:translateY(14px)}
/* header 保持水平居中位移，只叠加纵向入场偏移 */
body:not(.entered) .site-header{opacity:0;transform:translate(-50%,-12px)}
.hero-stage,.hero-dots,.hero-trustbar{transition:opacity 1s var(--ease) .35s,transform 1s var(--ease) .35s}
.site-header{transition:opacity .9s var(--ease) .5s,transform .9s var(--ease) .5s,background .4s var(--ease),box-shadow .4s var(--ease),border-color .4s var(--ease)}

/* ============================================================
   Hero（tec-do 式全屏视频轮播：标语居中特大字 + 指示条）
   ============================================================ */
.hero{position:relative;min-height:100vh;display:flex;align-items:center;justify-content:center;color:var(--ink);overflow:hidden;background:#E8F0FA}
.hero-video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
/* tec-do 式：视频直出基本不压暗，白纱保文字可读 + 上下边缘一点点阴影 */
.hero-overlay{
  position:absolute;inset:0;pointer-events:none;
  background:
    linear-gradient(180deg,rgba(6,14,50,.12) 0%,rgba(6,14,50,0) 20%,rgba(6,14,50,0) 70%,rgba(6,14,50,.18) 100%),
    linear-gradient(180deg,rgba(255,255,255,.30) 0%,rgba(255,255,255,.04) 26%,rgba(255,255,255,.05) 62%,rgba(255,255,255,.36) 100%);
}
.hero-stage{
  position:relative;z-index:2;text-align:center;
  padding:140px 24px 170px;max-width:1100px;margin:0 auto;
}
.hero-slogans{display:grid;margin-bottom:28px}
.hero-slogan{
  grid-area:1/1;
  font-size:clamp(40px,6.5vw,84px);line-height:1.15;letter-spacing:-.02em;font-weight:600;
  background:linear-gradient(174deg,#0B1230 0%,#0B1230 30%,#0026E6 78%,#0067F0 100%);
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
  opacity:0;transform:translateY(26px);
  transition:opacity .8s var(--ease),transform .8s var(--ease);
  pointer-events:none;text-shadow:none;filter:drop-shadow(0 2px 18px rgba(255,255,255,.55));
}
.hero-slogan em{
  font-style:normal;
  background:linear-gradient(174deg,#0026E6 0%,#00A8E8 100%);
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
}
.hero-slogan.is-active{opacity:1;transform:translateY(0)}
.hero-sub{
  font-size:16px;color:rgba(24,34,72,.78);max-width:760px;margin:0 auto 40px;
  text-shadow:0 1px 16px rgba(255,255,255,.55);
}
.hero-cta{display:flex;gap:16px;flex-wrap:wrap;justify-content:center}
/* 亮色视频上的次要按钮：白底深字玻璃感，hover 蓝渐变滑入（tec-do 式） */
.hero-cta .btn-ghost{
  border-color:rgba(255,255,255,.9);color:#1A2450;text-shadow:none;
  background-color:rgba(255,255,255,.72);backdrop-filter:blur(8px);
  background-image:var(--grad);
}
.hero-cta .btn-ghost:hover{color:#fff;border-color:transparent}

/* 轮播指示条（tec-do 式文字胶囊） */
.hero-dots{
  position:absolute;left:0;right:0;bottom:104px;z-index:3;
  display:flex;justify-content:center;gap:10px;flex-wrap:wrap;padding:0 24px;
}
.hero-dots button{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(255,255,255,.78);border:1px solid rgba(255,255,255,.95);
  color:#3A4258;font-size:12.5px;padding:8px 18px;border-radius:999px;
  backdrop-filter:blur(10px);transition:all .3s var(--ease);font-weight:500;
  box-shadow:0 4px 16px rgba(30,50,120,.10);
}
.hero-dots button i{width:6px;height:6px;border-radius:50%;background:#B9C2D8;transition:all .3s}
.hero-dots button:hover{color:var(--main);box-shadow:0 6px 20px rgba(30,50,120,.16)}
.hero-dots button.is-active{background:#fff;color:var(--main);border-color:#fff;font-weight:600;box-shadow:0 6px 22px rgba(0,38,230,.18)}
.hero-dots button.is-active i{background:var(--main)}

/* 底部信任条：去深色横带 → 轻透白玻璃，深色文字 */
.hero-trustbar{
  position:absolute;left:0;right:0;bottom:0;z-index:3;
  border-top:1px solid rgba(255,255,255,.65);
  background:rgba(255,255,255,.5);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
}
.trustbar-inner{display:flex;align-items:center;justify-content:center;gap:22px;padding:15px 0;color:#28304A;font-size:13.5px;letter-spacing:.04em;flex-wrap:wrap}
.trustbar-inner i{color:rgba(0,38,230,.35);font-style:normal}

/* ============================================================
   数字统计条（tec-do 大数字区）
   ============================================================ */
/* ---------- 淡视频背景区块（tec-do 式：视频垫底 + 白纱洗淡） ---------- */
.has-band-video{position:relative;overflow:hidden}
.band-video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:0}
.band-veil{
  position:absolute;inset:0;z-index:1;pointer-events:none;
  /* tec-do 式通透白纱：视频清晰可见，仅保证文字可读 */
  background:linear-gradient(180deg,rgba(255,255,255,.72) 0%,rgba(255,255,255,.55) 45%,rgba(255,255,255,.78) 100%);
}
.stats-band .container,.trust-grid .container,.engines .container{position:relative;z-index:2}

/* ---------- 玻璃卡（Hero 同语言：白玻璃 + 蓝调柔影） ---------- */
.glass-card{
  background:linear-gradient(160deg,rgba(255,255,255,.82) 0%,rgba(238,244,255,.55) 100%);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border:1px solid rgba(255,255,255,.85);border-radius:var(--radius);
  box-shadow:0 12px 34px rgba(4,65,141,.08);
}
.stats-band{padding:96px 0;border-bottom:1px solid var(--line)}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.stat{padding:34px 30px 30px;position:relative;overflow:hidden;transition:transform .35s var(--ease),box-shadow .35s var(--ease)}
.stat::before{
  content:"";position:absolute;left:30px;top:0;width:44px;height:3px;border-radius:0 0 3px 3px;
  background:var(--grad);
}
.stat:hover{transform:translateY(-5px);box-shadow:0 22px 48px rgba(4,65,141,.14)}
.stat-num{font-size:58px;font-weight:600;line-height:1.05;letter-spacing:-.02em;color:var(--ink);margin-bottom:12px;display:flex;align-items:baseline;gap:5px}
.stat-num i{font-style:normal;font-size:15px;font-weight:500;color:var(--main)}
.stat-num .count{font-variant-numeric:tabular-nums;background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.stat-label{font-size:13.5px;color:var(--gray-light);line-height:1.7}

/* ---------- 页面 Hero（内页 · 浅蓝玻璃底 + 视频纱 + 幽灵字，与首页同语言） ---------- */
.page-hero{
  position:relative;overflow:hidden;color:var(--ink);
  padding:190px 0 96px;
  background:
    radial-gradient(1000px 520px at 88% -12%,rgba(0,225,255,.14),transparent 60%),
    radial-gradient(880px 480px at -8% 110%,rgba(0,120,255,.10),transparent 62%),
    linear-gradient(165deg,#EAF1FF 0%,#DFE9FF 55%,#E8F3FF 100%);
}
.page-hero .hero-video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:0}
.page-hero .hero-veil{
  position:absolute;inset:0;z-index:1;
  background:linear-gradient(180deg,rgba(240,245,255,.92) 0%,rgba(233,241,255,.84) 55%,rgba(240,246,255,.95) 100%);
}
.page-hero .hero-ghost{
  position:absolute;right:-14px;bottom:-30px;z-index:1;
  font-size:clamp(110px,15vw,210px);font-weight:800;line-height:1;letter-spacing:.02em;
  color:transparent;-webkit-text-stroke:1.5px rgba(0,38,230,.10);
  pointer-events:none;user-select:none;white-space:nowrap;
}
.page-hero .container{position:relative;z-index:2}
.page-hero.compact{padding:190px 0 80px}
.page-title{font-size:clamp(34px,4.4vw,50px);color:var(--ink);letter-spacing:-.02em;margin-bottom:18px;position:relative;z-index:2}
.page-title em{
  font-style:normal;
  background:linear-gradient(174deg,#0026E6 0%,#00A8E8 100%);
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
}
/* 兼容旧深色 Hero 的 light 文案类：浅底上自动转深色 */
.page-hero .eyebrow,.page-hero .lead{position:relative;z-index:2}
.page-hero .eyebrow.light{color:var(--main)}
.page-hero .lead.light-text{color:#39415E}

/* ============================================================
   服务导航（解决方案页副导航）
   ============================================================ */
.service-nav{position:sticky;top:88px;z-index:60;background:rgba(255,255,255,.82);backdrop-filter:blur(16px) saturate(1.3);border-bottom:1px solid rgba(210,222,246,.6)}
.service-nav-inner{display:flex;gap:8px;overflow-x:auto;padding:12px 0;scrollbar-width:none}
.service-nav-inner::-webkit-scrollbar{display:none}
.service-nav a{color:var(--gray-light);font-size:13.5px;padding:7px 17px;border-radius:999px;border:1px solid var(--line);white-space:nowrap;font-weight:500;transition:all .25s var(--ease);background:rgba(255,255,255,.7)}
.service-nav a:hover,.service-nav a.on{color:#fff;border-color:transparent;background:var(--grad);box-shadow:0 6px 16px rgba(0,38,230,.22)}

/* 内页 Hero 上的描边按钮：浅底自动转深描边（首页深色 Hero 的 .hero-cta 内不受影响） */
.page-hero .btn-ghost{
  border-color:rgba(0,38,230,.35);color:var(--main);
  background-image:linear-gradient(174deg,#0026E6,#0026E6);
  background-size:200% 100%;background-position:201% 0;
}
.page-hero .btn-ghost:hover{color:#fff;border-color:transparent}

/* ============================================================
   服务区块（解决方案页）
   ============================================================ */
.service-block{padding:96px 0;position:relative;overflow:hidden}
.service-block.alt{
  background:
    radial-gradient(760px 400px at 90% 0%,rgba(0,190,255,.07),transparent 62%),
    linear-gradient(180deg,#F5F9FF 0%,#EFF4FE 100%);
}
.no-badge{
  display:inline-flex;align-items:center;justify-content:center;
  width:50px;height:50px;border-radius:14px;font-size:20px;font-weight:600;color:#fff;
  background:var(--grad);margin-bottom:20px;
  box-shadow:0 10px 26px rgba(0,38,230,.28),inset 0 1px 0 rgba(255,255,255,.35);
}
.slogan-line{font-size:22px;color:var(--ink);margin:4px 0 14px}
.deliver-box{
  border-left:3px solid var(--main);
  background:linear-gradient(90deg,rgba(226,237,255,.85) 0%,rgba(226,237,255,.35) 100%);
  padding:14px 18px;
  border-radius:0 10px 10px 0;font-size:14px;color:#28304A;margin:18px 0 10px;
}
.deliver-box strong{color:var(--main)}
.fit-box{font-size:14px;color:var(--gray-light)}
.do-card{
  background:linear-gradient(180deg,rgba(255,255,255,.96) 0%,rgba(242,246,255,.85) 100%);
  border:1px solid rgba(255,255,255,.9);border-radius:var(--radius);padding:32px;
  box-shadow:0 12px 30px rgba(31,58,147,.07);
}
.do-card h4{color:var(--main);letter-spacing:.06em;margin-bottom:16px;font-size:15px}

/* ============================================================
   首页 · 信任四格 / 引擎 / 通道 / 清单
   ============================================================ */
.trust-grid{
  padding:110px 0;
  background:
    radial-gradient(760px 420px at 10% 0%,rgba(90,140,255,.09),transparent 62%),
    radial-gradient(760px 420px at 92% 100%,rgba(0,190,255,.08),transparent 62%);
}
/* 柔光圆（深浅区块通用） */
.glow{position:absolute;border-radius:50%;pointer-events:none;z-index:0}
.glow-a{top:-260px;right:-220px;width:720px;height:720px;background:radial-gradient(circle,rgba(0,225,255,.16),transparent 65%)}
.glow-b{bottom:-300px;left:-240px;width:680px;height:680px;background:radial-gradient(circle,rgba(0,120,255,.13),transparent 65%)}
.glow-cyan{top:-240px;left:-180px;width:640px;height:640px;background:radial-gradient(circle,rgba(0,225,255,.14),transparent 65%)}
.glow-blue{bottom:-280px;right:-200px;width:700px;height:700px;background:radial-gradient(circle,rgba(0,38,230,.22),transparent 65%)}

/* 图标徽章（渐变浅底 + 描边图标） */
.icon-badge{
  width:56px;height:56px;border-radius:16px;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(150deg,rgba(0,38,230,.09) 0%,rgba(0,225,255,.13) 100%);
  border:1px solid rgba(0,38,230,.10);color:var(--main);margin-bottom:20px;
  transition:transform .35s var(--ease),box-shadow .35s var(--ease);
}
.icon-badge svg{width:26px;height:26px}
.icon-badge.big{width:64px;height:64px;border-radius:18px}
.icon-badge.big svg{width:30px;height:30px}
.icon-badge.light{
  background:linear-gradient(150deg,rgba(0,38,230,.32) 0%,rgba(0,225,255,.16) 100%);
  border-color:rgba(91,208,251,.25);color:var(--cyan);
}
/* 3D 玻璃图标（电光蓝配色 · 透明背景） */
.icon-3d{
  display:block;height:104px;width:auto;margin-bottom:18px;
  filter:drop-shadow(0 14px 22px rgba(0,38,230,.16));pointer-events:none;
  transition:transform .35s var(--ease),filter .35s var(--ease);
}
.icon-card:hover .icon-3d{transform:translateY(-6px) scale(1.05);filter:drop-shadow(0 22px 30px rgba(0,38,230,.22))}
.icon-card h3{margin-bottom:8px}
.icon-card:hover .icon-badge{transform:translateY(-3px) scale(1.05);box-shadow:0 12px 26px rgba(0,38,230,.18)}

.engines,.services-strip{position:relative;overflow:hidden}
.services-strip.soft-blue{
  background:linear-gradient(180deg,#F2F6FF 0%,#EBF0FE 100%);
}
.engine-grid{margin-top:12px}

/* ---------- 六条买家通道：浅蓝柔光玻璃卡带（保持节奏但不压暗页面） ---------- */
.dark-band{
  background:
    radial-gradient(900px 480px at 8% -6%,rgba(0,38,230,.09),transparent 60%),
    radial-gradient(760px 440px at 96% 108%,rgba(0,140,255,.08),transparent 60%),
    linear-gradient(180deg,#EFF4FF 0%,#E7EEFE 100%);
  position:relative;overflow:hidden;
}
.channel-grid{margin-top:10px}
.channel-card{
  position:relative;padding:34px 30px 30px;border-radius:var(--radius);
  background:linear-gradient(160deg,rgba(255,255,255,.88) 0%,rgba(244,248,255,.6) 100%);
  border:1px solid rgba(255,255,255,.95);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  box-shadow:0 12px 32px rgba(4,65,141,.07);
  transition:transform .35s var(--ease),border-color .35s var(--ease),box-shadow .35s var(--ease);
  overflow:hidden;
}
.channel-card::after{
  content:"";position:absolute;left:0;bottom:0;height:3px;width:100%;
  background:var(--grad);opacity:0;transition:opacity .35s;
}
.channel-card:hover{transform:translateY(-5px);border-color:rgba(0,38,230,.22);box-shadow:0 24px 54px rgba(4,65,141,.16)}
.channel-card:hover::after{opacity:1}
.channel-card .no{
  position:absolute;top:22px;right:26px;font-size:30px;font-weight:700;letter-spacing:-.02em;
  color:transparent;-webkit-text-stroke:1px rgba(0,38,230,.22);font-variant-numeric:tabular-nums;
  transition:all .35s var(--ease);
}
.channel-card:hover .no{-webkit-text-stroke-color:rgba(0,38,230,.42)}
.channel-card h3{color:var(--ink);font-size:18px;margin-bottom:8px}
.channel-card p{color:var(--gray-light);font-size:14px;line-height:1.75}

.services-strip .service-cards{margin-top:8px;margin-bottom:36px}
.services-strip .card .deliver{border-top:1px dashed #D8E2F5;padding-top:13px}

/* ---------- 为什么选择（大序号卡） ---------- */
.whyus{
  position:relative;overflow:hidden;
  background:
    radial-gradient(820px 460px at 88% 2%,rgba(0,190,255,.10),transparent 60%),
    radial-gradient(760px 440px at 4% 96%,rgba(0,120,255,.08),transparent 60%),
    linear-gradient(180deg,#FFFFFF 0%,#F5F9FF 100%);
}
/* ---------- 为什么是灵智：tec-do 式居中高亮轮播 ---------- */
.why-carousel{margin-top:10px}
.why-viewport{overflow:hidden;padding:26px 0 10px}
.why-track{display:flex;gap:28px;will-change:transform;transition:transform .65s var(--ease)}
.why-card{
  position:relative;flex:0 0 min(420px,82vw);padding:38px 34px 34px;border-radius:var(--radius);
  background:linear-gradient(160deg,#FFFFFF 0%,#F5F8FF 100%);
  border:1px solid var(--line);color:var(--ink);
  transition:opacity .5s var(--ease),transform .5s var(--ease),border-color .5s,box-shadow .5s;
  overflow:hidden;
}
.why-card h3{font-size:19px;margin-bottom:10px;position:relative;z-index:1}
.why-card p{font-size:14.5px;color:var(--gray-light);line-height:1.8;position:relative;z-index:1}
.why-avatar{
  display:inline-flex;align-items:center;justify-content:center;
  width:56px;height:56px;border-radius:50%;margin-bottom:20px;
  background:var(--grad);color:#fff;font-weight:700;font-size:18px;letter-spacing:.02em;
  box-shadow:0 10px 22px rgba(0,38,230,.22);position:relative;z-index:1;
}
.why-card .ghost-no{
  position:absolute;right:6px;bottom:-26px;font-size:120px;font-weight:700;line-height:1;
  color:transparent;-webkit-text-stroke:1.5px rgba(0,38,230,.07);pointer-events:none;
  font-variant-numeric:tabular-nums;
}
.why-card:not(.active){opacity:.45;transform:scale(.94)}
.why-card.active{
  opacity:1;transform:scale(1.04);z-index:2;border-color:transparent;
  background:linear-gradient(150deg,#EAF1FF 0%,#DDEBFF 55%,#D6F4FF 100%);
  box-shadow:0 30px 60px rgba(0,38,230,.14);
}
.why-card.active .ghost-no{-webkit-text-stroke-color:rgba(0,38,230,.14)}
.why-dots{display:flex;justify-content:center;gap:10px;margin-top:22px}
.why-dots button{
  width:26px;height:5px;border-radius:3px;border:none;cursor:pointer;padding:0;
  background:rgba(0,38,230,.16);transition:all .3s var(--ease);
}
.why-dots button.on{width:44px;background:var(--grad)}

/* ---------- 九项服务：左清单 + 右大面板 ---------- */
.svc-showcase{
  display:grid;grid-template-columns:400px 1fr;gap:0;margin-top:14px;
  border-radius:calc(var(--radius) + 6px);overflow:hidden;
  border:1px solid var(--line);background:var(--white);
  box-shadow:var(--shadow-lg);
}
.svc-list{list-style:none;margin:0;padding:14px 10px;display:flex;flex-direction:column}
.svc-list li{
  display:flex;align-items:center;gap:14px;padding:15px 18px;border-radius:14px;
  cursor:pointer;color:var(--gray-light);font-size:15px;font-weight:500;
  transition:all .25s var(--ease);position:relative;
}
.svc-list li .no{
  font-size:13px;font-weight:700;font-variant-numeric:tabular-nums;
  color:rgba(0,38,230,.35);width:24px;transition:color .25s;
}
.svc-list li .arr{margin-left:auto;font-style:normal;opacity:0;transform:translateX(-6px);transition:all .25s var(--ease)}
.svc-list li:hover{color:var(--ink);background:rgba(0,38,230,.045)}
.svc-list li.active{
  color:var(--ink);font-weight:600;
  background:linear-gradient(90deg,rgba(0,38,230,.08) 0%,rgba(0,225,255,.06) 100%);
}
.svc-list li.active .no{color:var(--main)}
.svc-list li.active .arr{opacity:1;transform:none;color:var(--main)}
.svc-panel{
  position:relative;display:flex;align-items:center;gap:34px;
  padding:54px 56px;overflow:hidden;
  background:linear-gradient(150deg,#EAF1FF 0%,#E0ECFF 50%,#D8F3FF 100%);
}
.svc-panel .ghost-no{
  position:absolute;right:18px;bottom:-38px;font-size:170px;font-weight:700;line-height:1;
  color:transparent;-webkit-text-stroke:1.5px rgba(0,38,230,.10);pointer-events:none;
  font-variant-numeric:tabular-nums;
}
.svc-icon{width:172px;height:auto;flex:0 0 auto;filter:drop-shadow(0 18px 28px rgba(0,38,230,.18))}
.svc-points{list-style:none;margin:18px 0 0;padding:0;display:grid;gap:9px}
.svc-points li{
  position:relative;padding-left:26px;font-size:14px;color:#3A4258;line-height:1.6;
}
.svc-points li::before{
  content:"";position:absolute;left:0;top:6px;width:17px;height:17px;
  background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cdefs%3E%3ClinearGradient id='g' x1='0' y1='0' x2='1' y2='1'%3E%3Cstop offset='0' stop-color='%230026E6'/%3E%3Cstop offset='1' stop-color='%2300B4FF'/%3E%3C/linearGradient%3E%3C/defs%3E%3Ccircle cx='12' cy='12' r='11' fill='url(%23g)'/%3E%3Cpath d='M16.5 8.5 10.8 14.6 7.5 11.3' fill='none' stroke='white' stroke-width='2.6' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/contain no-repeat;
  filter:drop-shadow(0 3px 7px rgba(0,38,230,.25));
}
.svc-info{position:relative;z-index:1;transition:opacity .3s var(--ease),transform .3s var(--ease)}
.svc-info.swap{opacity:0;transform:translateY(10px)}
.svc-info h3{font-size:24px;margin-bottom:10px}
.svc-info p{font-size:15px;color:var(--gray-light);line-height:1.8}
.svc-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}
.svc-tags span{
  font-size:13px;font-weight:500;color:var(--blue-text);
  background:rgba(255,255,255,.75);border:1px solid rgba(0,38,230,.12);
  padding:7px 16px;border-radius:999px;backdrop-filter:blur(6px);
}
/* 旧九宫格卡片样式保留给其他页面 */
.num-card{position:relative;padding-top:34px}
.num-card .big-no{
  position:absolute;top:18px;right:26px;font-size:52px;font-weight:700;line-height:1;
  letter-spacing:-.03em;color:transparent;-webkit-text-stroke:1.2px rgba(0,38,230,.22);
  font-variant-numeric:tabular-nums;transition:all .35s var(--ease);
}
.num-card:hover .big-no{-webkit-text-stroke-color:rgba(0,38,230,.45)}

/* ---------- 为什么选择 / 客户 ---------- */
.clients-row{margin-top:56px;border-top:1px solid var(--line);padding-top:44px}
.clients-head{display:flex;flex-direction:column;align-items:center;text-align:center;margin-bottom:26px}
.clients-head .clients-label{margin-bottom:12px}
.clients-head h2{margin-bottom:0}
.clients-note{font-size:12.5px;color:var(--gray-light);margin-top:14px}
.clients-label{font-size:12px;letter-spacing:.2em;color:var(--main);text-transform:uppercase;font-weight:500}
.client-card{
  background:linear-gradient(180deg,#FFFFFF 0%,#F2F6FF 100%);border:1px solid var(--line);
  border-radius:var(--radius);padding:26px 26px 24px;color:var(--ink);text-align:left;
  box-shadow:0 12px 30px rgba(31,58,147,.06);position:relative;overflow:hidden;
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);
}
.client-card::after{
  content:"";position:absolute;left:0;bottom:0;height:3px;width:100%;
  background:var(--grad);opacity:0;transition:opacity .3s;
}
.client-card:hover{transform:translateY(-4px);border-color:rgba(0,38,230,.14);box-shadow:0 20px 44px rgba(31,58,147,.12)}
.client-card:hover::after{opacity:1}
.cc-top{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:16px}
.cc-loc{
  display:inline-flex;align-items:center;gap:5px;font-size:12.5px;font-weight:500;color:var(--blue-text);
  background:rgba(0,38,230,.055);border:1px solid rgba(0,38,230,.10);padding:4px 12px;border-radius:999px;
}
.cc-loc::before{
  content:"";width:11px;height:11px;flex:0 0 auto;
  background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M20 10c0 6-8 12-8 12S4 16 4 10a8 8 0 1 1 16 0Z' fill='none' stroke='%230032E0' stroke-width='2.2'/%3E%3Ccircle cx='12' cy='10' r='3' fill='%230032E0'/%3E%3C/svg%3E") center/contain no-repeat;
}
.cc-status{
  font-size:11.5px;font-weight:500;color:#0B7A3C;background:rgba(11,122,60,.07);
  border:1px solid rgba(11,122,60,.14);padding:3px 10px;border-radius:999px;white-space:nowrap;
}
.client-card h4{font-size:17px;font-weight:600;margin-bottom:8px;letter-spacing:.01em}
.cc-desc{font-size:13.5px;color:var(--gray-light);line-height:1.75;margin-bottom:18px}
.cc-tags{display:flex;flex-wrap:wrap;gap:8px;border-top:1px dashed var(--line);padding-top:16px}
.cc-tags span{
  font-size:12.5px;font-weight:500;color:var(--blue-text);
  background:rgba(255,255,255,.8);border:1px solid rgba(0,38,230,.12);padding:5px 12px;border-radius:999px;
}

/* ---------- 案例区（浅蓝底） ---------- */
.cases-preview{
  position:relative;overflow:hidden;
  background:
    radial-gradient(860px 480px at 10% 0%,rgba(0,120,255,.08),transparent 62%),
    radial-gradient(760px 460px at 94% 100%,rgba(0,190,255,.09),transparent 62%),
    linear-gradient(180deg,#F0F5FF 0%,#EAF1FE 100%);
}

/* ---------- 案例卡片（封面图 + 内容） ---------- */
.case-card{
  display:block;background:var(--white);border:1px solid var(--line);border-radius:var(--radius);
  padding:0;color:var(--ink);transition:all .35s var(--ease);position:relative;overflow:hidden;
}
.case-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:4px;z-index:3;
  background:var(--grad);opacity:0;transition:opacity .3s;
}
.case-cover{position:relative;height:210px;overflow:hidden}
.case-cover img{width:100%;height:100%;object-fit:cover;transition:transform .6s var(--ease)}
.case-card:hover .case-cover img{transform:scale(1.05)}
.case-cover .tag{
  position:absolute;left:18px;bottom:14px;background:rgba(255,255,255,.92);backdrop-filter:blur(8px);
  color:var(--main);border-color:transparent;box-shadow:0 8px 22px rgba(4,65,141,.18);
}
.case-cover::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(4,10,50,0) 55%,rgba(4,10,50,.28) 100%)}
.case-body{padding:26px 30px 30px}
.case-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:transparent;color:var(--ink)}
.case-card:hover::before{opacity:1}
.case-card h3{font-size:19px;margin-bottom:10px}
.case-card p{font-size:14.5px;color:var(--gray-light)}
.case-card .deliver{margin-top:12px;font-size:13.5px;color:var(--blue-text);border-top:1px solid var(--line);padding-top:14px}
.case-card .more{display:inline-block;margin-top:16px;font-size:13.5px;color:var(--main);font-weight:600}

/* ---------- 平台 CTA（视频垫底 + 浅色玻璃纱，与内容区同语言） ---------- */
.finder-cta{position:relative;overflow:hidden;padding:130px 0}
.finder-video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
/* 首页 CTA：浅色玻璃纱（内页 finder-bg 保持深色不受影响） */
.finder-veil{
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(255,255,255,.84) 0%,rgba(240,246,255,.62) 45%,rgba(255,255,255,.88) 100%);
}
.finder-inner{position:relative;z-index:2}
.finder-inner h2{color:var(--ink)}
.dark-band .glow-blue{background:radial-gradient(circle,rgba(0,38,230,.10),transparent 65%)}

/* ---------- 联系 CTA（玻璃面板） ---------- */
.contact-cta{
  background:linear-gradient(180deg,#FFFFFF 0%,#F2F6FF 100%);
  padding-bottom:120px;
}
.cta-panel{
  position:relative;overflow:hidden;border-radius:28px;
  background:linear-gradient(160deg,rgba(255,255,255,.9) 0%,rgba(235,242,255,.7) 100%);
  border:1px solid rgba(255,255,255,.9);
  box-shadow:0 30px 70px rgba(4,65,141,.12),inset 0 1px 0 rgba(255,255,255,.9);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
}
.cta-panel::before{
  content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);width:64%;height:4px;
  background:var(--grad);border-radius:0 0 6px 6px;
}
.glow-panel{
  top:-240px;left:50%;transform:translateX(-50%);width:760px;height:520px;
  background:radial-gradient(closest-side,rgba(0,120,255,.14),transparent 70%);
}
.cta-panel-inner{position:relative;z-index:2;padding:84px 48px 78px;text-align:center}
.cta-panel-inner .lead{margin-bottom:34px}
.section > .container{position:relative;z-index:2}

/* ============================================================
   China Factory Finder 平台页
   ============================================================ */
.finder-page-hero{padding:210px 0 100px}
/* ---------- 内页平台 Hero（浅纱图片底，与全站统一） ---------- */
.finder-bg{position:absolute;inset:0;background:linear-gradient(100deg,rgba(238,244,255,.93) 12%,rgba(224,235,255,.82) 55%,rgba(240,247,255,.92) 100%)}
.finder-page-hero .finder-bg{position:absolute;inset:0}
.finder-page-hero .container{position:relative;z-index:2}
.factory-card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:all .35s var(--ease)}
.factory-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:transparent}
.factory-thumb{
  height:170px;
  background:
    radial-gradient(360px 200px at 70% -20%,rgba(0,225,255,.25),transparent 65%),
    linear-gradient(135deg,#DEE9FF 0%,#D0E4FF 55%,#DFF6FF 100%);
  display:flex;align-items:center;justify-content:center;color:rgba(0,38,230,.45);
  font-size:14px;letter-spacing:.2em;
}
.factory-card h3{font-size:17px;margin:20px 22px 6px}
.factory-card p{font-size:13.5px;color:var(--gray-light);margin:0 22px 22px}
.factory-join .join-note{font-size:17px;color:var(--ink);margin-bottom:26px}
.factory-join .join-note strong{color:var(--main)}

/* ---------- FAQ ---------- */
.faq-item{border-bottom:1px solid var(--line);padding:2px 0}
.faq-item summary{
  list-style:none;cursor:pointer;font-size:15px;font-weight:600;color:var(--ink);
  padding:14px 26px 14px 0;position:relative;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";position:absolute;right:4px;top:12px;color:var(--main);font-size:20px;font-weight:400;
  transition:transform .3s var(--ease);
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item p{font-size:14px;color:var(--gray-light);padding:0 30px 14px 0}

/* ============================================================
   案例页
   ============================================================ */
.case-block{margin-bottom:56px}
.case-head{display:flex;align-items:center;gap:16px;margin-bottom:18px;flex-wrap:wrap}
.case-head h2{font-size:26px;margin:0}
.case-table{
  background:linear-gradient(180deg,rgba(255,255,255,.96) 0%,rgba(246,249,255,.9) 100%);
  border:1px solid rgba(255,255,255,.95);border-radius:var(--radius);overflow:hidden;
  box-shadow:0 16px 40px rgba(31,58,147,.08);backdrop-filter:blur(8px);
}
.case-row{display:grid;grid-template-columns:180px 1fr;border-bottom:1px solid #E4EBF9}
.case-row:last-child{border-bottom:none}
.case-key{background:linear-gradient(90deg,rgba(230,239,255,.9),rgba(230,239,255,.55));padding:18px 24px;font-weight:600;font-size:14px;color:var(--ink)}
.case-val{padding:18px 24px;font-size:14.5px;color:#3A3F52}

/* ============================================================
   关于页
   ============================================================ */
.about-hero{padding:210px 0 100px}
.about-bg,.about-bg img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.16;filter:saturate(1.15)}
.about-hero .container{position:relative;z-index:2}
.story-p{font-size:15.5px;color:#3A3F52;margin-bottom:16px}
.belief-item{padding:14px 0;border-bottom:1px solid var(--line)}
.belief-item:last-child{border-bottom:none}
.belief-item h3{color:var(--main);font-size:17px;margin-bottom:6px}
.timeline{border-left:2px solid transparent;border-image:linear-gradient(180deg,#0026E6 0%,#00C2F0 60%,rgba(0,194,240,.15) 100%) 1;margin-left:8px;padding-left:36px}
.timeline-item{position:relative;padding-bottom:30px}
.timeline-item:last-child{padding-bottom:0}
.timeline-item::before{
  content:"";position:absolute;left:-44px;top:8px;width:14px;height:14px;border-radius:50%;
  background:var(--grad);border:3px solid #fff;box-shadow:0 4px 12px rgba(0,38,230,.3);
}
.t-year{font-size:14px;font-weight:700;color:var(--main);letter-spacing:.06em;display:block;margin-bottom:4px}

/* ============================================================
   联系页 / 表单
   ============================================================ */
.contact-page{background:var(--bg-soft)}
.form-card{padding:38px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 18px}
.form-row{margin-bottom:18px}
.form-row label{display:block;font-size:13.5px;font-weight:600;margin-bottom:7px;color:var(--ink)}
.form-row input,.form-row select,.form-row textarea{
  width:100%;padding:12px 16px;border:1px solid var(--line);border-radius:var(--radius-sm);
  font-size:14.5px;font-family:inherit;background:#fff;color:var(--ink);
  transition:all .25s var(--ease);
}
.form-row input:focus,.form-row select:focus,.form-row textarea:focus{
  outline:none;border-color:var(--main);box-shadow:0 0 0 3px rgba(0,38,230,.12);
}
.form-row textarea{resize:vertical}
.form-tip{margin-top:14px;font-size:13.5px;min-height:20px}
.form-tip.ok{color:var(--main)}
.form-tip.err{color:var(--red)}
.contact-side .card{margin-bottom:18px}
.contact-side .card h3{font-size:17px}
.contact-side .card p{font-size:14.5px;color:var(--gray-light)}
.note-box{
  background:linear-gradient(90deg,rgba(226,237,255,.85),rgba(226,237,255,.4));
  border-left:3px solid var(--main);padding:16px 20px;
  font-size:14px;color:#28304A;border-radius:0 10px 10px 0;margin-top:8px;
}

/* 首页区块标题居中（tec-do 式） */
body[data-page="home"] .section > .container > .eyebrow,
body[data-page="home"] .section > .container > h2,
body[data-page="home"] .section > .container > .lead{
  text-align:center;margin-left:auto;margin-right:auto;
}

/* ---------- 空状态（洞察页） ---------- */
.empty-state{text-align:center;padding:76px 20px;background:var(--white);border:1px dashed #C3CEE6;border-radius:var(--radius)}
.empty-icon{font-size:44px;color:var(--sky);margin-bottom:12px}
.empty-state p{color:var(--gray-light);max-width:520px;margin:0 auto 10px}

/* ---------- 法律页 ---------- */
.legal-body p{color:#3A3F52;font-size:15px;margin-bottom:14px}
.legal-body h3{margin:26px 0 10px;color:var(--main)}

/* ============================================================
   页脚（深藏青）
   ============================================================ */
.site-footer{background:var(--navy-deep);color:rgba(255,255,255,.62);padding:88px 0 36px}
.footer-top{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr 1.4fr;gap:40px;padding-bottom:52px;border-bottom:1px solid rgba(255,255,255,.1)}
.footer-brand .brand{margin-bottom:18px}
.footer-slogan{color:#fff;font-size:20px;font-weight:600;margin-bottom:8px}
.footer-sub{font-size:13px;color:rgba(255,255,255,.45);max-width:280px}
.footer-col h4{color:#fff;font-size:14px;margin-bottom:16px;letter-spacing:.06em}
.footer-col a{display:block;color:rgba(255,255,255,.62);font-size:13.5px;padding:5px 0}
.footer-col a:hover{color:var(--cyan)}
.footer-col p{font-size:13.5px;padding:3px 0}
.footer-bottom{display:flex;justify-content:space-between;gap:16px;padding-top:28px;font-size:12.5px;flex-wrap:wrap}
.footer-social .divider{margin:0 12px;color:rgba(255,255,255,.2)}

/* ============================================================
   动效
   ============================================================ */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
.reveal.visible{opacity:1;transform:translateY(0)}

/* ============================================================
   响应式
   ============================================================ */
@media (max-width:1024px){

  .why-card{flex:0 0 82vw;padding:30px 26px}
  .svc-showcase{grid-template-columns:1fr}
  .svc-list{flex-direction:row;overflow-x:auto;padding:12px;scrollbar-width:none}
  .svc-list::-webkit-scrollbar{display:none}
  .svc-list li{flex:0 0 auto;white-space:nowrap;padding:11px 14px}
  .svc-list li .arr{display:none}
  .svc-panel{padding:36px 28px;gap:22px}
  .svc-icon{width:104px}
  .svc-panel .ghost-no{font-size:110px}

  .g4{grid-template-columns:repeat(2,1fr)}
  .g3{grid-template-columns:repeat(2,1fr)}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:28px}
  .footer-top{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:768px){
  .g2,.g3,.g4{grid-template-columns:1fr}
  .two-col{grid-template-columns:1fr}
  .section{padding:68px 0}
  .hero-sub{font-size:14px;margin-bottom:30px}
  .hero-stage{padding:120px 20px 160px}
  .hero-dots{bottom:96px}
  .hero-dots button span{display:none}
  .hero-dots button{padding:10px 12px}
  .stats-grid{grid-template-columns:1fr 1fr;gap:24px}
  .stat-num{font-size:40px}
  .page-title{font-size:30px}
  .main-nav{
    position:fixed;top:90px;left:12px;right:12px;background:rgba(255,255,255,.98);
    border:1px solid var(--line);border-radius:20px;box-shadow:0 20px 50px rgba(16,24,64,.16);
    flex-direction:column;padding:16px 20px 20px;gap:2px;
    transform:translateY(-130%);transition:transform .4s var(--ease);
  }
  .main-nav.open{transform:translateY(0)}
  .main-nav > a{padding:13px 8px;font-size:15.5px;border-bottom:1px solid var(--line)}
  .main-nav > a.active{background:transparent;color:var(--main)}
  /* 菜单底部 CTA：保持按钮自身样式（渐变底、白字、胶囊），触屏上禁用 hover 填充残留 */
  .nav-cta-mobile .btn{display:flex;width:100%;padding:12px 20px;font-size:13.5px;border-bottom:none}
  .nav-cta-mobile .btn:hover{background-position:0 0,0 0;transform:none}
  .nav-cta-mobile{display:block;margin-top:16px}
  /* 菜单展开时：头部落为白底胶囊，汉堡变关闭 X（深色底上仍清晰可见） */
  .site-header.nav-open{background:rgba(255,255,255,.98);border-color:rgba(233,238,250,.95);box-shadow:0 14px 40px rgba(16,24,64,.14)}
  .site-header.nav-open .nav-toggle span{background:var(--ink)!important}
  .site-header.nav-open .nav-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg)}
  .site-header.nav-open .nav-toggle span:nth-child(2){opacity:0}
  .site-header.nav-open .nav-toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
  .header-right .btn{display:none}
  .lang-switch{display:none}
  .nav-toggle{display:flex}
  .channel-grid{grid-template-columns:1fr}
  .channel-card{padding:28px 24px 26px}
  .stat-num{font-size:40px}
  .form-grid{grid-template-columns:1fr}
  .footer-top{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column}
  .loading-slogan{font-size:26px}
  .loading-logo{height:56px;margin-bottom:22px}
  .trustbar-inner{font-size:12px;gap:12px}
  .container{padding:0 22px}
}

/* ============================================================
   移动端：底部固定导航 + 排版收紧
   ============================================================ */
.tabbar{display:none}

@media (max-width:768px){

  /* ---- 防横向溢出：任何超宽元素不再撑开页面 ---- */
  html,body{overflow-x:hidden;max-width:100vw}

  /* ---- 卡片类：短卡一排两个，带清单/长文字的卡单列不挤 ---- */
  .g2{grid-template-columns:repeat(2,1fr);gap:12px}
  .g3,.g4{grid-template-columns:1fr;gap:12px}
  .channel-grid{grid-template-columns:1fr;gap:12px}
  /* 客户卡保持两列，徽章行允许换行、禁止压成竖排字 */
  .cc-top{flex-wrap:wrap;justify-content:flex-start;gap:6px 8px;margin-bottom:12px}
  .cc-loc{white-space:nowrap;font-size:11px;padding:3px 9px;gap:4px}
  .cc-status{font-size:10.5px;padding:2px 8px}

  /* ---- 底部固定导航（参考 App 式 TabBar） ---- */
  .tabbar{
    display:flex;position:fixed;bottom:0;left:0;right:0;z-index:300;
    background:rgba(255,255,255,.94);
    backdrop-filter:blur(20px) saturate(1.4);-webkit-backdrop-filter:blur(20px) saturate(1.4);
    border-top:1px solid rgba(233,238,250,.9);
    box-shadow:0 -10px 34px rgba(16,24,64,.10);
    padding:7px 6px calc(7px + env(safe-area-inset-bottom,0px));
  }
  .tabbar a{
    flex:1;display:flex;flex-direction:column;align-items:center;gap:3px;
    color:#8A93A8;font-size:10.5px;font-weight:500;line-height:1;
    padding:4px 0 2px;border-radius:10px;transition:color .25s var(--ease);
  }
  .tabbar a svg{width:22px;height:22px;transition:transform .25s var(--ease)}
  .tabbar a.active{color:var(--main);font-weight:600}
  .tabbar a.active svg{stroke-width:2.1;transform:translateY(-1px);filter:drop-shadow(0 3px 8px rgba(0,38,230,.28))}
  /* 页脚让位，避免最后一段内容被导航遮住 */
  .site-footer{padding-bottom:calc(84px + env(safe-area-inset-bottom,0px))}

  /* ---- 排版收紧：字号与留白整体降一档 ---- */
  .section{padding:52px 0}
  h2{font-size:25px;margin-bottom:10px}
  h3{font-size:16.5px;margin-bottom:6px}
  .lead{font-size:14px;margin-bottom:22px}
  .eyebrow{font-size:11px;margin-bottom:8px}
  .mini{font-size:11.5px;margin-top:12px}
  .btn{padding:11px 22px;font-size:13.5px}
  .btn-lg{padding:12px 26px;font-size:14px}

  .page-hero{padding:126px 0 46px}
  .page-hero.compact{padding:126px 0 38px}
  .page-title{font-size:26px;margin-bottom:12px}
  .page-hero .lead{margin-bottom:22px}
  .hero-cta{flex-wrap:wrap;gap:10px}

  .case-row{grid-template-columns:1fr}
  .case-key{padding:13px 18px 0;background:transparent;font-size:13px}
  .case-val{padding:6px 18px 14px}
  .icon-3d{height:72px}
  .svc-panel{padding:26px 20px;gap:16px}
  .svc-icon{width:84px}
  .svc-panel .ghost-no{font-size:84px}
  .client-card{padding:22px 20px}
  .dark-card{padding:22px 20px}
  .form-card,.contact-side{padding:24px 20px}
  .deliver-box,.note-box{font-size:13px;padding:12px 16px}
  .timeline{padding-left:26px}
  .timeline-item::before{left:-36px;width:12px;height:12px}
  .footer-slogan{font-size:18px}
}

/* ============================================================
   移动端二次收紧：整体字号 / 留白再降一档（以首页为主）
   ============================================================ */
@media (max-width:768px){

  /* ---- Hero：高度由内容决定，不再占满一屏；视频 cover 不变形 ---- */
  .hero{min-height:auto}
  .hero-stage{padding:88px 18px 96px}
  .hero-slogan{font-size:29px;line-height:1.24}
  .hero-sub{font-size:12.5px;line-height:1.75;margin-bottom:20px}
  .hero-cta{gap:9px}
  .hero-cta .btn{padding:9px 16px;font-size:12.5px}
  .hero-dots{bottom:70px}
  .hero-dots button{padding:7px 9px;font-size:10.5px}
  .hero-trustbar .trustbar-inner{font-size:10px;gap:8px}

  /* ---- 通用 ---- */
  .section{padding:34px 0}
  .stats-band{padding:30px 0}
  .clients-row{margin-top:36px;padding-top:26px}
  .container{padding:0 18px}
  h2{font-size:21px;line-height:1.35;margin-bottom:7px}
  h3{font-size:15px}
  .lead{font-size:12.5px;line-height:1.8;margin-bottom:16px}
  .eyebrow{font-size:9.5px;letter-spacing:.15em;margin-bottom:6px}
  .mini{font-size:10.5px;margin-top:10px}
  .btn{padding:9px 17px;font-size:12.5px}

  /* ---- 数字条 / 信任条 ---- */
  .stats-grid{gap:12px}
  .stat{padding:18px 14px 16px;border-radius:16px}
  .stat-num{font-size:28px;margin-bottom:5px}
  .stat-num i{font-size:11px}
  .stat-label{font-size:10.5px;line-height:1.55}
  .trustbar-inner{font-size:10px;gap:9px;padding:10px 0}

  /* ---- 图标卡 / 通道卡 ---- */
  .icon-card{padding:20px 16px;border-radius:18px}
  .icon-3d{height:58px}
  .icon-badge{top:14px;left:14px;font-size:10px;padding:3px 8px}
  .channel-grid{gap:14px}
  .channel-card{padding:18px 15px;border-radius:18px}
  .channel-card h3{font-size:15px}
  .channel-card p{font-size:12px}

  /* ---- 九项服务展示 ---- */
  .svc-list{padding:9px;gap:6px}
  .svc-list li{padding:8px 11px;font-size:11.5px;border-radius:10px}
  .svc-panel{padding:18px 15px;border-radius:18px;gap:14px}
  .svc-icon{width:62px}
  .svc-panel .ghost-no{font-size:64px}
  .svc-info h3{font-size:16px}
  .svc-info p{font-size:12px;line-height:1.75}
  .svc-points li{font-size:11.5px;padding:5px 0 5px 20px}
  .svc-tags span{font-size:10.5px;padding:4px 9px}

  /* ---- 为什么是灵智 / 客户 / 案例 ---- */
  .why-card{flex:0 0 84vw;padding:20px 17px;border-radius:18px}
  .why-card h3{font-size:15px}
  .why-card p{font-size:12px;line-height:1.75}
  .why-avatar{width:52px;height:52px}
  .why-card .ghost-no{font-size:52px}
  .clients-head{margin-bottom:18px}
  .clients-head h2{font-size:21px}
  .clients-note{font-size:11.5px}
  .client-card{padding:16px 15px;border-radius:16px}
  .client-card h4{font-size:14px;margin:6px 0}
  .cc-desc{font-size:11.5px;line-height:1.7}
  .cc-tags span{font-size:10px;padding:3px 8px}
  .case-card{border-radius:16px}
  .case-body{padding:16px 15px}
  .case-body h3{font-size:14.5px}
  .case-body .deliver{font-size:11px}

  /* ---- CTA / 联系 / 视频带 ---- */
  .stats-band{padding:40px 0}
  .finder-cta{padding:64px 0}
  .cta-panel{padding:30px 18px;border-radius:20px}
  .cta-panel-inner h2{font-size:22px}
  .finder-inner h2{font-size:22px}

  /* ---- 页脚 ---- */
  .site-footer{padding:48px 0 calc(80px + env(safe-area-inset-bottom,0px))}
  .footer-top{padding-bottom:32px;gap:26px}
  .footer-slogan{font-size:16.5px;margin-bottom:6px}
  .footer-sub{font-size:11.5px}
  .footer-col h4{font-size:12.5px;margin-bottom:10px}
  .footer-col a,.footer-col p{font-size:12px;padding:4px 0}
  .footer-bottom{font-size:11px;padding-top:20px}
}