/* ============================================================
   长光恒德光电 · 整站深色工业科技风共享样式
   （沿用新版主页设计系统，统一各页面视觉语言）
   ============================================================ */
:root{
  --bg:#060b16; --bg-2:#081120; --bg-3:#0b1730;
  --panel:rgba(18,42,78,.55); --panel-2:rgba(20,52,96,.42);
  --line:rgba(72,168,255,.18); --line-2:rgba(72,168,255,.30);
  --cyan:#22d9f0; --blue:#2f8bff; --blue-d:#0a4d9e;
  --text:#eaf4ff; --text-2:#a8c2e0; --text-3:#6f8db4;
  --maxw:1200px;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:96px}
body{background:var(--bg);color:var(--text);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;line-height:1.7;overflow-x:hidden;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
ul{list-style:none}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}

/* ---------- 背景网格 ---------- */
.grid-bg{position:fixed;inset:0;z-index:-2;pointer-events:none;
  background-image:linear-gradient(rgba(64,160,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(64,160,255,.045) 1px,transparent 1px);
  background-size:56px 56px;mask-image:radial-gradient(ellipse at 50% 0%,#000 30%,transparent 78%)}
.glow{position:fixed;inset:0;z-index:-3;pointer-events:none;
  background:radial-gradient(60% 45% at 78% -8%,rgba(34,217,240,.14),transparent 60%),
             radial-gradient(50% 40% at 8% 10%,rgba(47,139,255,.12),transparent 60%),
             radial-gradient(40% 32% at 50% 110%,rgba(10,77,158,.16),transparent 60%)}

/* ============================================================
   导航（含下拉菜单，全站统一）
   ============================================================ */
.nav{position:fixed;top:0;left:0;right:0;z-index:90;backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);background:rgba(6,11,22,.72);border-bottom:1px solid var(--line)}
.nav-in{max-width:var(--maxw);margin:0 auto;padding:0 24px;height:68px;display:flex;align-items:center;gap:22px}
.nav-logo{display:flex;align-items:center;gap:12px;flex:none}
.nav-logo .mark{width:46px;height:36px;overflow:hidden;border-radius:8px;flex:none;background:#062a4a}
.nav-logo .mark img{height:100%;width:auto;max-width:none}
.nav-logo .nm{font-weight:700;font-size:18px;letter-spacing:1px;background:linear-gradient(120deg,#eaf4ff,#8fd8ff);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav-links a{color:var(--text-2);font-size:14.5px;padding:8px 11px;border-radius:8px;transition:.2s;white-space:nowrap;position:relative}
.nav-links a::after{content:"";position:absolute;left:11px;right:11px;bottom:4px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--cyan),var(--blue));transform:scaleX(0);transform-origin:left;transition:transform .3s var(--ease)}
.nav-links a:hover{color:#fff;background:rgba(47,139,255,.12)}
.nav-links a:hover::after,.nav-links a.act::after{transform:scaleX(1)}
.nav-links a.act{color:var(--cyan)}
.has-sub{position:relative}
.has-sub>a{display:inline-flex;align-items:center;gap:5px}
.has-sub>a::after{content:"▾";font-size:10px;color:var(--text-3)}
.sub-menu{position:absolute;top:100%;left:0;min-width:200px;padding:8px;border:1px solid var(--line);border-radius:12px;background:rgba(7,15,29,.98);box-shadow:0 18px 44px rgba(0,0,0,.5);backdrop-filter:blur(10px);opacity:0;visibility:hidden;transform:translateY(8px);transition:.22s var(--ease)}
.has-sub:hover .sub-menu,.has-sub:focus-within .sub-menu{opacity:1;visibility:visible;transform:none}
.sub-menu a{display:block;padding:9px 14px;font-size:14px;color:var(--text-2);border-radius:8px}
.sub-menu a:hover{color:#fff;background:rgba(47,139,255,.12)}
.nav-phone{flex:none;display:flex;align-items:center;gap:8px;color:var(--cyan);font-weight:600;font-size:14.5px;padding:8px 14px;border:1px solid var(--line-2);border-radius:10px;background:rgba(34,217,240,.06)}
.nav-toggle{display:none;flex:none;background:none;border:none;width:44px;height:44px;cursor:pointer;flex-direction:column;align-items:center;justify-content:center;gap:5px}
.nav-toggle span{width:22px;height:2px;background:var(--cyan);transition:.25s}
@media(max-width:1080px){
  .nav-links{position:fixed;top:68px;right:0;height:calc(100vh - 68px);width:min(84vw,340px);flex-direction:column;align-items:stretch;background:rgba(6,13,26,.98);border-left:1px solid var(--line);padding:20px;transform:translateX(100%);transition:.3s var(--ease);overflow-y:auto}
  .nav-links.open{transform:translateX(0)}
  .nav-links>a,.has-sub>a{padding:13px 10px;font-size:16px}
  .has-sub>a::after{content:""}
  .sub-menu{position:static;opacity:1;visibility:visible;transform:none;background:none;border:none;box-shadow:none;padding:0 0 0 12px;display:none}
  .has-sub.open .sub-menu{display:block}
  .nav-toggle{display:flex}
  .nav-phone{display:none}
}

/* ============================================================
   子页页头（面包屑 + 大标题）
   ============================================================ */
.page-head{position:relative;padding:118px 0 46px;border-bottom:1px solid var(--line);
  background:linear-gradient(180deg,rgba(8,17,32,.7),rgba(8,17,32,.15))}
.page-head .crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:16px}
.page-head .crumb a{color:var(--text-3)}
.page-head .crumb a:hover{color:var(--cyan)}
.page-head .crumb .sep{opacity:.5}
.page-head h1{font-size:clamp(28px,3.6vw,44px);font-weight:800;letter-spacing:.5px}
.page-head .sub{color:var(--text-2);font-size:16px;margin-top:12px;max-width:760px}

/* ============================================================
   Hero（首页）
   ============================================================ */
.hero{position:relative;min-height:100vh;padding:150px 0 90px;display:flex;align-items:center;overflow:hidden}
.hero .bg{position:absolute;inset:0;z-index:-1}
.hero .bg img{width:100%;height:100%;object-fit:cover;opacity:.55}
.hero .bg::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(6,11,22,.92) 0%,rgba(6,11,22,.72) 48%,rgba(6,11,22,.35) 100%),linear-gradient(0deg,rgba(6,11,22,1) 0%,rgba(6,11,22,0) 30%)}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;width:100%}
.tag{display:inline-flex;align-items:center;gap:8px;color:var(--cyan);font-size:13px;letter-spacing:2px;padding:6px 14px;border:1px solid var(--line-2);border-radius:999px;background:rgba(34,217,240,.07);margin-bottom:22px}
.tag::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--cyan);box-shadow:0 0 10px var(--cyan)}
.hero h1{font-size:clamp(34px,4.6vw,58px);line-height:1.18;font-weight:800;letter-spacing:.5px}
.hero h1 .grad{background:linear-gradient(120deg,#22d9f0,#2f8bff 70%,#7fb8ff);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.hero p{color:var(--text-2);font-size:17px;max-width:560px;margin:24px 0 34px}
.hero-btns{display:flex;gap:16px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:10px;padding:14px 30px;border-radius:12px;font-size:16px;font-weight:600;transition:.25s;cursor:pointer;border:none;position:relative;overflow:hidden}
.btn-primary{background:linear-gradient(120deg,#12c6e8,#2f8bff);color:#04121f;box-shadow:0 8px 26px rgba(34,217,240,.28)}
.btn-primary::before{content:"";position:absolute;top:0;left:-80%;width:50%;height:100%;background:linear-gradient(100deg,transparent,rgba(255,255,255,.55),transparent);transform:skewX(-20deg);opacity:0}
.btn-primary:hover::before{animation:btnSweep .7s var(--ease)}
@keyframes btnSweep{0%{left:-80%;opacity:0}40%{opacity:1}100%{left:130%;opacity:0}}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 32px rgba(34,217,240,.4)}
.btn-ghost{background:transparent;color:var(--text);border:1px solid var(--line-2)}
.btn-ghost:hover{border-color:var(--cyan);color:var(--cyan)}
.hero-visual{position:relative}
.hv-img{border-radius:18px;border:1px solid var(--line);overflow:hidden;box-shadow:0 20px 60px rgba(0,0,0,.45);position:relative}
.hv-img img{width:100%;aspect-ratio:16/10;object-fit:cover}
.holo{position:absolute;border:1px solid var(--line-2);background:linear-gradient(160deg,rgba(20,52,96,.6),rgba(12,26,52,.5));backdrop-filter:blur(6px);border-radius:12px;box-shadow:0 0 24px rgba(34,217,240,.18)}
.holo small{color:var(--text-3);font-size:11px;letter-spacing:1px}
.holo b{display:block;font-size:22px;color:var(--cyan);font-weight:700;line-height:1.2}
.holo .h1{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px}
.holo svg{width:100%;height:34px}
.holo1{top:8%;right:-26px;width:200px;padding:14px 16px}
.holo2{bottom:6%;left:-22px;width:230px;padding:14px 16px}
.holo3{top:44%;right:-40px;width:150px;padding:12px 14px}
.chips{position:absolute;bottom:-16px;left:8%;display:flex;gap:8px;flex-wrap:wrap}
.chip{font-size:12px;color:var(--cyan);padding:5px 12px;border:1px solid var(--line-2);border-radius:999px;background:rgba(6,16,32,.8);backdrop-filter:blur(4px)}
.scan{position:absolute;inset:-6%;border:1px dashed rgba(34,217,240,.35);border-radius:22px;animation:spin 22s linear infinite;pointer-events:none}
@keyframes spin{to{transform:rotate(360deg)}}

/* ---------- 数据总览 ---------- */
.stats{position:relative;padding:26px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:linear-gradient(180deg,rgba(8,17,32,.6),rgba(8,17,32,.2))}
.stats-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:20px}
.stat{text-align:center;padding:10px 6px;position:relative}
.stat b{display:block;font-size:clamp(26px,2.6vw,38px);font-weight:800;background:linear-gradient(120deg,#eaf4ff,#22d9f0);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.stat span{display:block;font-size:13px;color:var(--text-3);margin-top:6px;letter-spacing:.5px}

/* ============================================================
   通用 section
   ============================================================ */
.section{padding:84px 0}
.sec-head{margin-bottom:48px}
.sec-head .k{color:var(--cyan);font-size:13px;letter-spacing:3px;margin-bottom:12px;display:flex;align-items:center;gap:12px}
.sec-head .k::after{content:"";flex:0 0 44px;height:1px;background:linear-gradient(90deg,var(--cyan),transparent)}
.sec-head h2{font-size:clamp(26px,3vw,40px);font-weight:800;letter-spacing:.5px}
.sec-head p{color:var(--text-3);font-size:16px;margin-top:12px;max-width:680px}

/* ============================================================
   产品中心
   ============================================================ */
.prod-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.prod{position:relative;border-radius:16px;border:1px solid var(--line);background:var(--panel);overflow:hidden;transition:.3s var(--ease)}
.prod:hover{transform:translateY(-6px);border-color:var(--line-2);box-shadow:0 16px 44px rgba(34,217,240,.14)}
.prod .ph{position:relative;overflow:hidden;aspect-ratio:4/3}
.prod .ph img{width:100%;height:100%;object-fit:cover;transition:.5s}
.prod:hover .ph img{transform:scale(1.05)}
.prod .ph::after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(6,11,22,.92) 0%,rgba(6,11,22,.05) 55%)}
.prod .pb{padding:22px 22px 26px}
.prod h3{font-size:19px;font-weight:700;margin-bottom:10px;display:flex;align-items:center;gap:8px}
.prod h3::before{content:"";width:4px;height:18px;border-radius:2px;background:linear-gradient(180deg,var(--cyan),var(--blue));flex:none}
.prod p{color:var(--text-2);font-size:14.5px;line-height:1.7}
.prod .pt{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.prod .plk{display:inline-flex;align-items:center;gap:6px;margin-top:16px;color:var(--cyan);font-size:14px;font-weight:600}
.prod .plk:hover{gap:10px}
.prod-cam-sub{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:16px}
.prod-cam-sub a{position:relative;overflow:hidden;border:1px solid var(--line-2);border-radius:10px;background:rgba(8,20,40,.6);transition:.2s;display:block}
.prod-cam-sub a:hover{border-color:var(--cyan);transform:translateY(-2px)}
.prod-cam-sub .pcs-img{height:96px;background-size:cover;background-position:center}
.prod-cam-sub .pcs-tx{padding:9px 11px;font-size:13.5px;color:var(--text);font-weight:600}
.prod-cam-sub a small{display:block;color:var(--text-3);font-size:11.5px;font-weight:400;margin-top:2px}

/* ---------- 解决方案 ---------- */
.sol-wrap{border:1px solid var(--line);border-radius:18px;background:var(--panel);overflow:hidden}
.sol-tabs{display:flex;flex-wrap:wrap;gap:6px;padding:18px 20px;border-bottom:1px solid var(--line);background:rgba(8,20,40,.4)}
.sol-tab{padding:10px 20px;border-radius:10px;color:var(--text-2);font-size:15px;cursor:pointer;transition:.2s;border:1px solid transparent}
.sol-tab:hover{color:#fff}
.sol-tab.on{color:var(--cyan);background:rgba(34,217,240,.08);border-color:var(--line-2)}
.sol-panel{display:none;grid-template-columns:1.05fr .95fr;gap:34px;padding:36px 34px;align-items:center}
.sol-panel.on{display:grid;animation:fade .4s var(--ease)}
@keyframes fade{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
.sol-panel h3{font-size:24px;font-weight:800;margin-bottom:14px}
.sol-panel p{color:var(--text-2);font-size:15px;line-height:1.85}
.sp-feat{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-top:20px}
.sp-feat div{display:flex;align-items:center;gap:10px;color:var(--text-2);font-size:14px;padding:10px 12px;border:1px solid var(--line);border-radius:10px;background:rgba(47,139,255,.05)}
.sp-feat div::before{content:"✓";color:var(--cyan);font-weight:700;flex:none}
.sol-visual{position:relative;border-radius:14px;overflow:hidden;border:1px solid var(--line)}
.sol-visual img{width:100%;aspect-ratio:4/3;object-fit:cover}
.sol-visual .ov{position:absolute;left:14px;bottom:14px;right:14px;padding:14px 16px;border-radius:10px;background:rgba(6,13,28,.78);border:1px solid var(--line-2);backdrop-filter:blur(6px)}
.sol-visual .ov b{display:block;font-size:16px}
.sol-visual .ov span{font-size:12.5px;color:var(--text-3)}

/* ---------- 成功案例 ---------- */
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.case-card{position:relative;border-radius:16px;border:1px solid var(--line);overflow:hidden;background:var(--panel);transition:.3s var(--ease)}
.case-card:hover{transform:translateY(-6px);border-color:var(--line-2)}
.case-card img{width:100%;aspect-ratio:16/9;object-fit:cover;filter:saturate(.9)}
.case-card .cd{padding:20px 22px 24px}
.case-card .cbadge{display:inline-block;font-size:12px;color:var(--cyan);padding:4px 12px;border:1px solid var(--line-2);border-radius:999px;background:rgba(34,217,240,.06);margin-bottom:12px}
.case-card h3{font-size:18px;font-weight:700;margin-bottom:8px}
.case-card p{color:var(--text-2);font-size:14px}
.case-card .ct{display:flex;flex-wrap:wrap;gap:7px;margin-top:14px}
.case-card .ct span{font-size:12px;color:var(--text-3);padding:4px 10px;border:1px solid var(--line);border-radius:999px}
.case-card .clk{display:inline-flex;gap:6px;margin-top:16px;color:var(--cyan);font-size:14px;font-weight:600}
.case-card .clk:hover{gap:10px}

/* ---------- 案例掠影 ---------- */
.gal{position:relative}
.gal-track{display:flex;gap:22px;overflow-x:auto;scroll-behavior:smooth;padding:6px 2px 22px;scrollbar-width:none}
.gal-track::-webkit-scrollbar{display:none}
.gal-item{flex:0 0 300px;border-radius:14px;border:1px solid var(--line);background:var(--panel);overflow:hidden;transition:.3s}
.gal-item:hover{border-color:var(--line-2);transform:translateY(-4px)}
.gal-item .gv{position:relative;height:150px;overflow:hidden}
.gal-item .gv::after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(6,11,22,.9),rgba(6,11,22,.1))}
.gal-item .gv .bg{position:absolute;inset:0;background-size:cover;background-position:center}
.gal-item .gbadge{position:absolute;z-index:2;top:12px;left:12px;font-size:11.5px;color:#fff;padding:4px 10px;border-radius:999px;background:rgba(8,24,48,.7);border:1px solid var(--line-2)}
.gal-item .gmeta{position:absolute;z-index:2;left:12px;right:12px;bottom:12px}
.gal-item .gmeta b{display:block;font-size:15px;line-height:1.3}
.gal-item .gmeta span{font-size:11.5px;color:var(--cyan)}
.gal-item .gdesc{padding:16px}
.gal-item .gdesc h4{font-size:15px;margin-bottom:6px}
.gal-item .gdesc p{font-size:12.5px;color:var(--text-3);line-height:1.6}
.gal-item .gdesc a{font-size:13px;color:var(--cyan);font-weight:600}
.gal-btns{display:flex;gap:12px;margin-top:6px}
.gal-btn{width:46px;height:46px;border-radius:12px;border:1px solid var(--line-2);background:rgba(47,139,255,.08);color:var(--cyan);font-size:18px;cursor:pointer;transition:.2s}
.gal-btn:hover{background:rgba(34,217,240,.16)}

/* ---------- 技术优势 ---------- */
.tech-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.tech{border:1px solid var(--line);border-radius:16px;background:var(--panel);padding:26px 22px;position:relative;overflow:hidden}
.tech::before{content:"";position:absolute;inset:0 0 auto 0;height:3px;background:linear-gradient(90deg,var(--cyan),var(--blue));opacity:.7}
.tech b{font-size:clamp(24px,2.4vw,34px);font-weight:800;color:var(--cyan);display:block}
.tech .tn{font-size:17px;font-weight:700;margin:10px 0 8px}
.tech p{color:var(--text-3);font-size:13.5px;line-height:1.7}

/* ---------- 关于我们 ---------- */
.about-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:44px;align-items:center}
.about-grid h3{font-size:26px;font-weight:800;margin-bottom:16px}
.about-grid p{color:var(--text-2);font-size:15px;line-height:1.85;margin-bottom:12px}
.about-feat{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-top:22px}
.about-feat div{display:flex;align-items:center;gap:10px;padding:12px 14px;border:1px solid var(--line);border-radius:10px;background:rgba(47,139,255,.05);font-size:14px;color:var(--text-2)}
.about-feat div::before{content:"✓";color:var(--cyan);font-weight:700;flex:none}
.about-visual{border-radius:16px;border:1px solid var(--line);overflow:hidden}
.about-visual img{width:100%;aspect-ratio:4/3;object-fit:cover}

/* ---------- FAQ ---------- */
.faq-list{max-width:900px;margin:0 auto;display:flex;flex-direction:column;gap:16px}
.faq{border:1px solid var(--line);border-radius:12px;background:var(--panel);overflow:hidden}
.faq .q{padding:20px 24px;font-size:16.5px;font-weight:600;display:flex;justify-content:space-between;align-items:center;cursor:pointer;gap:16px}
.faq .q::after{content:"+";font-size:24px;color:var(--cyan);font-weight:300;transition:.25s;flex:none}
.faq.on .q::after{transform:rotate(45deg)}
.faq .a{max-height:0;overflow:hidden;transition:max-height .35s var(--ease)}
.faq .a p{padding:0 24px 22px;color:var(--text-2);font-size:14.5px;line-height:1.8}

/* ---------- 联系我们 ---------- */
.contact-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:28px;align-items:start}
.form{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form .full{grid-column:1/-1}
.form label{display:block;font-size:13.5px;color:var(--text-2);margin-bottom:7px}
.form input,.form select,.form textarea{width:100%;padding:12px 14px;border-radius:10px;border:1px solid var(--line);background:rgba(8,20,40,.6);color:var(--text);font-size:14.5px;font-family:inherit;outline:none;transition:.2s}
.form input:focus,.form select:focus,.form textarea:focus{border-color:var(--cyan);box-shadow:0 0 0 3px rgba(34,217,240,.12)}
.form select{color-scheme:dark}
.form .btn{justify-content:center;grid-column:1/-1;width:100%}
.cside{display:flex;flex-direction:column;gap:18px}
.card{border:1px solid var(--line);border-radius:14px;background:var(--panel);padding:22px}
.card h4{font-size:16px;margin-bottom:14px;color:#fff;display:flex;align-items:center;gap:8px}
.card h4::before{content:"";width:4px;height:16px;border-radius:2px;background:linear-gradient(180deg,var(--cyan),var(--blue))}
.clist{display:flex;flex-direction:column;gap:12px}
.clist div{display:flex;gap:12px;align-items:flex-start;font-size:14px;color:var(--text-2)}
.clist .ic{width:34px;height:34px;flex:none;border-radius:8px;display:flex;align-items:center;justify-content:center;background:rgba(47,139,255,.1);color:var(--cyan);font-size:15px}
.clist b{display:block;color:#fff;font-size:14px}
.clist span{color:var(--text-3)}
.serve li{display:flex;gap:10px;align-items:center;color:var(--text-2);font-size:14px;padding:7px 0}
.serve li::before{content:"✓";color:var(--cyan);flex:none}

/* ============================================================
   子页详情通用（正文区）
   ============================================================ */
.page{padding:56px 0 80px}
.content-block{max-width:980px;margin:0 auto}
.content-block h2{font-size:24px;font-weight:800;margin:38px 0 14px;display:flex;align-items:center;gap:12px}
.content-block h2::before{content:"";width:5px;height:20px;border-radius:2px;background:linear-gradient(180deg,var(--cyan),var(--blue));flex:none}
.content-block h2:first-child{margin-top:0}
.content-block h3{font-size:19px;font-weight:700;margin:26px 0 10px;color:#fff}
.content-block p{color:var(--text-2);font-size:15px;line-height:1.9;margin-bottom:12px}
.content-block ul li{color:var(--text-2);font-size:15px;line-height:1.85;padding-left:22px;position:relative;margin-bottom:8px}
.content-block ul li::before{content:"›";color:var(--cyan);position:absolute;left:6px;font-weight:700}

/* 卡片网格（详情页内） */
.icards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:20px}
.icard{border:1px solid var(--line);border-radius:14px;background:var(--panel);padding:22px;transition:.3s}
.icard:hover{border-color:var(--line-2);transform:translateY(-4px)}
.icard .in{color:var(--cyan);font-weight:700;font-size:14px;letter-spacing:1px;margin-bottom:8px}
.icard h4{font-size:16px;margin-bottom:8px;color:#fff}
.icard p{font-size:13.5px;color:var(--text-3);line-height:1.7;margin:0}
/* 双列卡片 */
.duo{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:20px}
/* 参数/规格表 */
.spec{width:100%;border-collapse:collapse;margin-top:18px;border:1px solid var(--line);border-radius:12px;overflow:hidden}
.spec th,.spec td{padding:13px 16px;text-align:left;font-size:14px;border-bottom:1px solid var(--line)}
.spec th{background:rgba(47,139,255,.1);color:var(--cyan);font-weight:600;white-space:nowrap}
.spec td{color:var(--text-2)}
.spec tr:last-child td{border-bottom:none}
.spec tr:hover td{background:rgba(47,139,255,.04)}
/* 图文混排块 */
.split{display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:center;margin:20px 0}
.split img{border-radius:14px;border:1px solid var(--line)}
.split.rev{grid-template-columns:1fr 1fr}
.split.rev img{order:2}
/* 步骤时间轴 */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:20px}
.step{position:relative;border:1px solid var(--line);border-radius:14px;background:var(--panel);padding:22px}
.step .no{font-size:30px;font-weight:800;color:transparent;background:linear-gradient(120deg,var(--cyan),var(--blue));-webkit-background-clip:text;background-clip:text;margin-bottom:8px}
.step h4{font-size:16px;margin-bottom:6px}
.step p{font-size:13px;color:var(--text-3);margin:0}
/* 高亮统计条 */
.stat-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin:20px 0}
.stat-strip>div{text-align:center;border:1px solid var(--line);border-radius:14px;background:var(--panel);padding:24px 16px}
.stat-strip b{display:block;font-size:clamp(26px,3vw,38px);font-weight:800;background:linear-gradient(120deg,#eaf4ff,#22d9f0);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.stat-strip span{font-size:13.5px;color:var(--text-3)}
/* 提示块 */
.callout{border:1px solid var(--line-2);border-left:4px solid var(--cyan);border-radius:12px;background:rgba(47,139,255,.06);padding:18px 20px;margin:20px 0}
.callout p{color:var(--text-2);font-size:14.5px;margin:0}

/* ============================================================
   页脚
   ============================================================ */
.footer{border-top:1px solid var(--line);background:rgba(6,11,22,.8);padding:60px 0 28px;margin-top:20px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:34px}
.footer h5{font-size:15px;color:#fff;margin-bottom:16px}
.footer .fb p{color:var(--text-3);font-size:13.5px;line-height:1.8;max-width:320px;margin-top:14px}
.footer a{display:block;color:var(--text-3);font-size:13.5px;padding:5px 0;transition:.2s}
.footer a:hover{color:var(--cyan)}
.footer .fc div{display:flex;gap:10px;align-items:center;color:var(--text-3);font-size:13.5px;padding:6px 0}
.foot-bottom{border-top:1px solid var(--line);margin-top:40px;padding-top:20px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;color:var(--text-3);font-size:12.5px}

/* ============================================================
   入场动画
   ============================================================ */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.reveal.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}.scan{animation:none}}

/* ============================================================
   响应式
   ============================================================ */
@media(max-width:900px){
  .prod-grid{grid-template-columns:repeat(2,1fr)}
  .case-grid{grid-template-columns:repeat(2,1fr)}
  .tech-grid{grid-template-columns:repeat(2,1fr)}
  .icards{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .stat-strip{grid-template-columns:repeat(2,1fr)}
  .split{grid-template-columns:1fr}
  .split.rev img{order:0}
  .duo{grid-template-columns:1fr}
}
@media(max-width:820px){
  .hero-grid{grid-template-columns:1fr}
  .sol-panel{grid-template-columns:1fr;padding:26px 20px}
  .sol-panel .sol-visual{order:-1}
  .about-grid{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr}
  .form{grid-template-columns:1fr}
  .holo1{right:0}.holo2{left:0}.holo3{display:none}.chips{left:0}
}
@media(max-width:760px){
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:8px}
}
@media(max-width:600px){
  .prod-grid{grid-template-columns:1fr}
  .case-grid{grid-template-columns:1fr}
  .tech-grid{grid-template-columns:1fr}
  .icards{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .stat-strip{grid-template-columns:1fr}
}
@media(max-width:860px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:520px){.footer-grid{grid-template-columns:1fr}}

/* 移动端可读性 */
@media(max-width:640px){
  .form input,.form select,.form textarea{font-size:16px}
  .hero p,.sol-panel p,.prod p,.case-card p{font-size:15px}
  .sec-head .k,.stat span{font-size:13px}
  .chip{font-size:12.5px}
}

/* 智能视觉质检：四大功能模块 4 列一行 */
.icards.cols-4{grid-template-columns:repeat(4,1fr)}
@media(max-width:900px){.icards.cols-4{grid-template-columns:repeat(2,1fr)}}
@media(max-width:600px){.icards.cols-4{grid-template-columns:1fr}}

/* ============================================================
   v2.10 动效增强与细节优化（全站共享）
   ============================================================ */

/* Hero 入场：data-anim 顺序显现 */
.hero [data-anim]{opacity:0;animation:heroUp .8s var(--ease) forwards}
.hero [data-anim="tag"]{animation-delay:.05s}
.hero [data-anim="h1"]{animation-delay:.15s}
.hero [data-anim="vis"]{animation-delay:.30s}
.hero [data-anim="p"]{animation-delay:.40s}
.hero [data-anim="btns"]{animation-delay:.52s}
@keyframes heroUp{from{opacity:0;transform:translateY(22px)}to{opacity:1;transform:none}}

/* Hero 全息数据面板轻微浮动 */
.holo{animation:holoFloat 6s ease-in-out infinite}
.holo2{animation-delay:-2s}
.holo3{animation-delay:-4s}
@keyframes holoFloat{0%,100%{transform:translateY(0)}50%{transform:translateY(-6px)}}

/* 子页页头入场 */
.page-head .crumb{opacity:0;animation:heroUp .5s var(--ease) forwards;animation-delay:.05s}
.page-head h1{opacity:0;animation:heroUp .6s var(--ease) forwards;animation-delay:.12s}
.page-head .sub{opacity:0;animation:heroUp .6s var(--ease) forwards;animation-delay:.22s}

/* 卡片网格滚动渐入（JS 打 .grv / .grv-item，逐项递进） */
.grv-item{opacity:0;transform:translateY(18px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
.grv-item.in{opacity:1;transform:none}

/* 键盘焦点可见（无障碍） */
a:focus-visible,.btn:focus-visible,.chip:focus-visible,.faq .q:focus-visible,
.sol-tab:focus-visible,.nav-toggle:focus-visible,.gal-btn:focus-visible,
input:focus-visible,textarea:focus-visible,select:focus-visible,button:focus-visible{
  outline:2px solid var(--cyan);outline-offset:2px;border-radius:8px}

/* 减少动态偏好：统一关闭 v2.10 新增动效 */
@media(prefers-reduced-motion:reduce){
  .hero [data-anim],.page-head .crumb,.page-head h1,.page-head .sub{opacity:1;animation:none}
  .holo{animation:none}
  .grv-item{opacity:1;transform:none;transition:none}
  .btn-primary::before{display:none;animation:none}
  .nav-links a::after{transition:none}
}

/* ============================================================
   v2.11 智能行为分析：核心解决方案卡片（全站共享）
   ============================================================ */
.sol-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:20px}
.sol-card{border:1px solid var(--line);border-radius:14px;background:var(--panel);overflow:hidden;transition:.3s}
.sol-card:hover{border-color:var(--line-2);transform:translateY(-4px)}
.sol-card img{width:100%;aspect-ratio:4/3;object-fit:cover;display:block;border-bottom:1px solid var(--line)}
.sol-card .body{padding:20px 22px 24px}
.sol-card .in{color:var(--cyan);font-weight:700;font-size:13px;letter-spacing:1.5px;margin-bottom:8px;display:flex;align-items:center;gap:8px}
.sol-card .in::before{content:"";width:4px;height:14px;border-radius:2px;background:linear-gradient(180deg,var(--cyan),var(--blue))}
.sol-card h4{font-size:17px;margin-bottom:10px;color:#fff}
.sol-card p{font-size:14px;color:var(--text-3);line-height:1.75;margin:0}
@media(max-width:760px){.sol-grid{grid-template-columns:1fr}}