/* 中科光析（山东）检测科技有限公司 - 浅色主题 v2.0
   主色：白 #FFFFFF ｜ 辅助：蓝 #1668DC/#38BDF8 ｜ 咨询：橙 #EA7600
   一屏一板块 ｜ 全端自适应 1920/1366/1024/768/375 */
:root{
  --bg1:#FFFFFF;--bg2:#F4F8FC;--bg3:#EAF3FC;
  --blue:#1668DC;--blue2:#2563EB;--sky:#38BDF8;
  --orange:#ea7600;--orange-glow:rgba(234,118,0,.25);
  --txt:#14243E;--txt2:#4A5E7E;--txt3:#8496B0;
  --card:#FFFFFF;--bd:#E3ECF5;
  --light1:#DCE9F8;--light2:#EAF2FB;--light3:#D6E6F6;
  --fill1:#EAF3FF;--fill2:#F0F7FF;
  --r:16px;--nav-h:72px;
  --font:system-ui,"PingFang SC","Microsoft YaHei",sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
html.lenis{height:auto;scroll-behavior:auto}
body{font-family:var(--font);background:var(--bg1);color:var(--txt);font-size:16px;line-height:1.8;overflow-x:hidden;min-width:320px}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .3s}
ul,ol{list-style:none}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}
::selection{background:var(--blue);color:#fff}
/* 隐藏开屏与自定义鼠标（模板暂留节点，样式层面禁用） */
#preloader,#zx-cursor-dot,#zx-cursor-ring{display:none!important}
/* 滚动进度条 */
#zx-progress{position:fixed;top:0;left:0;height:2px;width:0;z-index:9999;background:linear-gradient(90deg,var(--blue),var(--orange));transition:width .1s linear}
/* ============ 布局工具 ============ */
.zx-section{position:relative;min-height:100vh;min-height:100svh;display:flex;align-items:center;padding:calc(var(--nav-h) + 40px) 0 60px;overflow:hidden;scroll-margin-top:var(--nav-h)}
.zx-wrap{width:min(1240px,92vw);margin:0 auto;position:relative;z-index:2}
.zx-wrap.wide{width:min(1400px,94vw)}
.zx-glass{background:var(--card);border:1px solid var(--bd);border-radius:var(--r);box-shadow:0 4px 20px rgba(20,60,120,.05)}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.2em;color:var(--blue);text-transform:uppercase;font-weight:600}
.eyebrow::before{content:"";width:26px;height:2px;background:linear-gradient(90deg,var(--blue),var(--sky))}
.sec-head{margin-bottom:52px;text-align:center}
.sec-head h2{font-size:clamp(30px,4vw,44px);font-weight:700;letter-spacing:.02em;margin:14px 0 12px;color:var(--txt)}
.sec-head h2 em{font-style:normal;background:linear-gradient(90deg,var(--blue),var(--sky));-webkit-background-clip:text;background-clip:text;color:transparent}
.sec-head p{color:var(--txt2);max-width:640px;margin:0 auto;font-size:15px}
/* 超大装饰字 */
.deco-word{position:absolute;z-index:1;font-size:clamp(6rem,14vw,16rem);font-weight:800;color:rgba(22,104,220,.05);letter-spacing:.04em;white-space:nowrap;pointer-events:none;user-select:none;line-height:1}
/* 科技网格背景 */
.grid-bg::before{content:"";position:absolute;inset:0;z-index:0;
  background-image:linear-gradient(rgba(22,104,220,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(22,104,220,.05) 1px,transparent 1px);
  background-size:56px 56px;
  -webkit-mask-image:radial-gradient(ellipse 70% 60% at 50% 40%,#000 30%,transparent 75%);
  mask-image:radial-gradient(ellipse 70% 60% at 50% 40%,#000 30%,transparent 75%)}
.glow-orb{position:absolute;border-radius:50%;filter:blur(90px);opacity:.5;pointer-events:none;z-index:0}
.orb-blue{background:radial-gradient(circle,rgba(22,104,220,.14),transparent 70%)}
.orb-orange{background:radial-gradient(circle,rgba(234,118,0,.10),transparent 70%)}
/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:14px 34px;border-radius:40px;font-size:16px;font-weight:600;transition:all .3s;position:relative;overflow:hidden;white-space:nowrap}
.btn-orange{background:linear-gradient(135deg,#f08800,var(--orange));color:#fff;box-shadow:0 6px 20px var(--orange-glow)}
.btn-orange::after{content:"";position:absolute;top:0;left:-80%;width:50%;height:100%;background:linear-gradient(105deg,transparent,rgba(255,255,255,.45),transparent);transform:skewX(-20deg);animation:sweep 3.2s infinite}
@keyframes sweep{0%{left:-80%}55%,100%{left:130%}}
.btn-ghost{border:1px solid rgba(22,104,220,.35);color:var(--blue);background:rgba(22,104,220,.04)}
.btn-ghost:hover{border-color:var(--blue);background:rgba(22,104,220,.08)}
.btn:hover{transform:translateY(-3px)}
.btn:active{transform:translateY(-1px)}
/* ============ 导航 ============ */
#zx-nav{position:fixed;top:0;left:0;right:0;z-index:9000;height:var(--nav-h);display:flex;align-items:center;transition:background .35s,box-shadow .35s,backdrop-filter .35s;background:rgba(255,255,255,.75);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid rgba(227,236,245,.6)}
#zx-nav.scrolled{background:rgba(255,255,255,.95);box-shadow:0 4px 24px rgba(20,60,120,.08)}
.nav-in{width:min(1400px,94vw);margin:0 auto;display:flex;align-items:center;gap:20px}
.nav-logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.nav-logo .logo-mark{width:38px;height:38px;border-radius:10px;background:linear-gradient(135deg,var(--blue),var(--sky));display:flex;align-items:center;justify-content:center;box-shadow:0 4px 14px rgba(22,104,220,.3)}
.nav-logo .logo-mark svg{width:22px;height:22px}
.nav-logo .logo-txt{line-height:1.2}
.nav-logo .logo-txt b{display:block;font-size:18px;letter-spacing:.06em;color:var(--txt)}
.nav-logo .logo-txt span{font-size:11px;color:var(--txt3);letter-spacing:.28em}
.nav-menu{display:flex;align-items:center;gap:4px;flex:1;justify-content:center}
.nav-menu>li{position:relative}
.nav-menu>li>a{display:inline-flex;align-items:center;gap:4px;padding:8px 13px;font-size:15px;color:var(--txt);border-radius:8px;white-space:nowrap}
.nav-menu>li>a:hover,.nav-menu>li.on>a{color:var(--blue);background:var(--fill1)}
.nav-menu>li.has-sub>a::after{content:"";width:6px;height:6px;border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;transform:rotate(45deg) translateY(-2px);margin-left:4px;transition:transform .3s}
.nav-menu>li.has-sub:hover>a::after{transform:rotate(225deg) translateY(0)}
/* 下拉面板 */
.nav-sub{position:absolute;top:calc(100% + 10px);left:50%;transform:translateX(-50%) translateY(12px);min-width:560px;padding:16px;display:grid;grid-template-columns:1fr 1fr;gap:6px;opacity:0;visibility:hidden;transition:all .3s;background:rgba(255,255,255,.98);backdrop-filter:blur(18px);border:1px solid var(--bd);border-radius:14px;box-shadow:0 24px 60px rgba(20,60,120,.14)}
.nav-menu>li:hover .nav-sub{opacity:1;visibility:visible;transform:translateX(-50%) translateY(0)}
.nav-sub a{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:10px;font-size:14px;color:var(--txt2)}
.nav-sub a:hover{background:var(--fill1);color:var(--blue)}
.nav-sub a i{width:8px;height:8px;border-radius:50%;background:linear-gradient(135deg,var(--blue),var(--sky));flex-shrink:0}
.nav-sub.cols1{grid-template-columns:1fr;min-width:200px}
/* 右侧区 */
.nav-right{display:flex;align-items:center;gap:14px;flex-shrink:0}
.nav-search-btn{width:38px;height:38px;border-radius:50%;border:1px solid var(--bd);display:flex;align-items:center;justify-content:center;transition:all .3s}
.nav-search-btn:hover{border-color:var(--sky);background:var(--fill1)}
.nav-search-btn svg{width:17px;height:17px}
.nav-badges{display:flex;align-items:center;gap:8px}
.zbadge{height:30px;display:flex;align-items:center;padding:0 8px;border:1px solid #CFE0F2;border-radius:6px;font-size:11px;font-weight:700;letter-spacing:.06em;color:var(--blue);background:var(--fill1)}
.btn-consult-sm{display:inline-flex;align-items:center;height:34px;padding:0 20px;border-radius:17px;background:linear-gradient(135deg,#f08800,var(--orange));color:#fff;font-size:14px;font-weight:600;box-shadow:0 4px 14px var(--orange-glow);position:relative;overflow:hidden;white-space:nowrap}
.btn-consult-sm::after{content:"";position:absolute;top:0;left:-80%;width:50%;height:100%;background:linear-gradient(105deg,transparent,rgba(255,255,255,.4),transparent);transform:skewX(-20deg);animation:sweep 3.2s infinite}
/* 搜索面板 */
#search-panel{position:fixed;top:calc(var(--nav-h) + 8px);left:50%;transform:translateX(-50%) translateY(-16px);width:min(560px,92vw);z-index:8900;padding:18px;opacity:0;visibility:hidden;transition:all .35s;background:rgba(255,255,255,.98);backdrop-filter:blur(18px);border:1px solid var(--bd);border-radius:14px;box-shadow:0 24px 60px rgba(20,60,120,.16)}
#search-panel.open{opacity:1;visibility:visible;transform:translateX(-50%) translateY(0)}
#search-panel form{display:flex;gap:10px}
#search-panel input[type="text"]{flex:1;height:46px;padding:0 16px;border-radius:10px;border:1px solid #D8E4F2;background:#fff;color:var(--txt);font-size:15px;outline:0;transition:border .3s}
#search-panel input[type="text"]:focus{border-color:var(--sky);box-shadow:0 0 0 3px rgba(56,189,248,.15)}
#search-panel button{height:46px;padding:0 22px;border-radius:10px;background:linear-gradient(135deg,var(--blue),var(--blue2));color:#fff;font-size:15px;font-weight:600}
/* 汉堡 */
#nav-burger{display:none;width:40px;height:40px;flex-direction:column;align-items:center;justify-content:center;gap:5px}
#nav-burger span{width:22px;height:2px;background:var(--txt);border-radius:2px;transition:all .3s}
#nav-burger.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
#nav-burger.open span:nth-child(2){opacity:0}
#nav-burger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
/* 移动抽屉 */
#nav-drawer{position:fixed;inset:0;z-index:8800;background:rgba(255,255,255,.98);backdrop-filter:blur(20px);padding:calc(var(--nav-h) + 20px) 6vw 40px;overflow-y:auto;transform:translateX(100%);transition:transform .4s cubic-bezier(.77,0,.18,1)}
#nav-drawer.open{transform:translateX(0)}
#nav-drawer .dr-group{border-bottom:1px solid var(--bd);padding:6px 0}
#nav-drawer .dr-group>a{display:flex;align-items:center;justify-content:space-between;padding:13px 2px;font-size:16px;font-weight:600;color:var(--txt)}
#nav-drawer .dr-sub{display:none;padding:0 0 10px 12px}
#nav-drawer .dr-group.open .dr-sub{display:block}
#nav-drawer .dr-sub a{display:block;padding:9px 2px;font-size:14px;color:var(--txt2)}
#nav-drawer .dr-cta{margin-top:22px}
#nav-drawer .dr-cta .btn{width:100%}
/* ============ Hero（首页） ============ */
.hero-home{position:relative;min-height:100vh;min-height:100svh;display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center;overflow:hidden;padding:calc(var(--nav-h) + 30px) 4vw 90px}
.hero-home .hero-bg{position:absolute;inset:0;z-index:0;background:
  radial-gradient(ellipse 60% 45% at 70% 20%,rgba(22,104,220,.10),transparent 65%),
  radial-gradient(ellipse 45% 40% at 20% 75%,rgba(234,118,0,.06),transparent 70%),
  linear-gradient(180deg,#FFFFFF 0%,#EAF3FC 70%,#FFFFFF 100%)}
.hero-home .zx-wrap{z-index:2}
.hero-title{font-size:clamp(38px,6vw,72px);font-weight:700;letter-spacing:.02em;line-height:1.25;margin:22px 0 18px;color:var(--txt)}
.hero-title .line{display:block;overflow:hidden}
.hero-title .line i{display:block;font-style:normal;transform:translateY(110%);animation:lineUp .9s cubic-bezier(.22,1,.36,1) forwards}
.hero-title .line:nth-child(2) i{animation-delay:.12s}
@keyframes lineUp{to{transform:translateY(0)}}
.grad-txt{background:linear-gradient(90deg,var(--blue) 0%,var(--sky) 60%,var(--blue));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{font-size:clamp(15px,1.6vw,20px);color:var(--txt2);max-width:720px;margin:0 auto 38px}
.hero-cta{display:flex;gap:18px;justify-content:center;flex-wrap:wrap}
/* 数据带 */
.hero-stats{position:absolute;left:0;right:0;bottom:0;z-index:3;border-top:1px solid var(--bd);background:rgba(255,255,255,.85);backdrop-filter:blur(10px)}
.hero-stats .stats-in{width:min(1240px,92vw);margin:0 auto;display:grid;grid-template-columns:repeat(4,1fr);padding:20px 0}
.stat{text-align:center;position:relative}
.stat+.stat::before{content:"";position:absolute;left:0;top:15%;height:70%;width:1px;background:var(--bd)}
.stat b{display:block;font-size:clamp(24px,3vw,38px);font-weight:800;font-variant-numeric:tabular-nums;background:linear-gradient(90deg,var(--blue),var(--sky));-webkit-background-clip:text;background-clip:text;color:transparent}
.stat span{font-size:13px;color:var(--txt3);letter-spacing:.1em}
/* scroll down */
.scroll-down{position:absolute;bottom:110px;left:50%;transform:translateX(-50%);z-index:3;display:flex;flex-direction:column;align-items:center;gap:8px;color:var(--txt3);font-size:12px;letter-spacing:.3em}
.scroll-down i{width:1px;height:42px;background:linear-gradient(180deg,var(--blue),transparent);position:relative;overflow:hidden}
.scroll-down i::after{content:"";position:absolute;top:-40%;left:0;width:100%;height:40%;background:var(--blue);animation:sd 2s ease-in-out infinite}
@keyframes sd{to{top:110%}}
/* ============ 资质 marquee ============ */
.zx-marquee{position:relative;padding:34px 0;border-top:1px solid var(--bd);border-bottom:1px solid var(--bd);background:var(--fill2);overflow:hidden}
.zx-marquee .mq-track{display:flex;gap:70px;width:max-content;animation:mq 30s linear infinite}
.zx-marquee:hover .mq-track{animation-play-state:paused}
@keyframes mq{to{transform:translateX(-50%)}}
.mq-item{display:flex;align-items:center;gap:12px;font-size:15px;color:var(--blue);font-weight:600;letter-spacing:.08em;white-space:nowrap}
.mq-item svg{width:26px;height:26px;opacity:.8}
/* ============ 服务卡片 ============ */
.svc-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:18px}
.svc-card{padding:26px 20px;display:flex;flex-direction:column;gap:12px;transition:transform .3s,box-shadow .3s,border-color .3s;position:relative;overflow:hidden}
.svc-card::before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:linear-gradient(90deg,var(--blue),var(--sky));transform:scaleX(0);transform-origin:left;transition:transform .4s}
.svc-card:hover{transform:translateY(-6px);box-shadow:0 18px 40px rgba(20,60,120,.12);border-color:rgba(56,189,248,.5)}
.svc-card:hover::before{transform:scaleX(1)}
.svc-ico{width:48px;height:48px;border-radius:12px;display:flex;align-items:center;justify-content:center;background:var(--fill1);border:1px solid #CFE3FA}
.svc-ico svg{width:26px;height:26px}
.svc-card h3{font-size:17px;font-weight:700;color:var(--txt)}
.svc-card p{font-size:13px;color:var(--txt2);line-height:1.7;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;min-height:66px}
.svc-chips{display:flex;flex-wrap:wrap;gap:6px}
.svc-chips span{font-size:11px;padding:3px 9px;border-radius:20px;background:var(--fill1);color:var(--blue);border:1px solid #CFE3FA}
.svc-more{margin-top:auto;display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--txt3);transition:color .3s}
.svc-more:hover{color:var(--blue)}
.svc-more svg{width:14px;height:14px;transition:transform .3s}
.svc-more:hover svg{transform:translateX(4px)}
/* ============ 流程 ============ */
.flow-row{display:grid;grid-template-columns:repeat(4,1fr);gap:0;position:relative}
.flow-step{position:relative;padding:0 26px;text-align:center}
.flow-step .fnum{width:74px;height:74px;margin:0 auto 20px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:26px;font-weight:800;font-variant-numeric:tabular-nums;background:var(--fill1);border:1px solid #CFE3FA;color:var(--blue)}
.flow-step h3{font-size:18px;margin-bottom:10px;color:var(--txt)}
.flow-step p{font-size:13.5px;color:var(--txt2)}
.flow-step::after{content:"";position:absolute;top:37px;left:calc(50% + 50px);width:calc(100% - 100px);height:1px;background:linear-gradient(90deg,rgba(56,189,248,.6),rgba(56,189,248,.12))}
.flow-step:last-child::after{display:none}
/* ============ 关于 ============ */
.about-flex{display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:center}
.about-txt h2{font-size:clamp(28px,3.6vw,42px);font-weight:700;margin:14px 0 20px;color:var(--txt)}
.about-txt p{color:var(--txt2);font-size:15.5px;margin-bottom:14px}
.about-nums{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:30px}
.about-nums .an{padding:18px 12px;text-align:center}
.about-nums b{display:block;font-size:28px;font-weight:800;color:var(--blue);font-variant-numeric:tabular-nums}
.about-nums span{font-size:12px;color:var(--txt3)}
.about-visual{position:relative;min-height:420px;border-radius:var(--r);overflow:hidden;border:1px solid #CFE3FA;
  background:radial-gradient(ellipse 80% 60% at 30% 30%,rgba(22,104,220,.10),transparent 60%),radial-gradient(ellipse 60% 50% at 75% 70%,rgba(234,118,0,.07),transparent 65%),linear-gradient(160deg,var(--fill2),var(--light2))}
.about-visual .av-in{position:absolute;inset:24px;display:flex;flex-direction:column;justify-content:flex-end;gap:10px}
.about-visual .av-chip{padding:12px 16px;font-size:13.5px;display:flex;gap:10px;align-items:center;color:var(--txt)}
.about-visual .av-chip svg{width:18px;height:18px;flex-shrink:0}
/* ============ 通用卡片（设备/文章） ============ */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.card-grid.c4{grid-template-columns:repeat(4,1fr)}
.d-card{padding:22px;display:flex;flex-direction:column;gap:10px;transition:all .3s}
.d-card:hover{transform:translateY(-6px);border-color:rgba(56,189,248,.5);box-shadow:0 18px 44px rgba(20,60,120,.12)}
.d-card .d-ico{width:44px;height:44px;border-radius:10px;display:flex;align-items:center;justify-content:center;background:var(--fill1);border:1px solid #CFE3FA}
.d-card .d-ico svg{width:24px;height:24px}
.d-card h3{font-size:16px;line-height:1.5;color:var(--txt)}
.d-card h3 a:hover{color:var(--blue)}
.d-card p{font-size:13px;color:var(--txt2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.d-card .d-meta{font-size:12px;color:var(--txt3);display:flex;justify-content:space-between;margin-top:auto;padding-top:8px;border-top:1px dashed var(--bd)}
/* 资质卡 */
.zizhi-flex{display:flex;gap:20px;align-items:stretch;flex-wrap:wrap}
.zizhi-card{flex:1;min-width:220px;padding:26px;text-align:center;display:flex;flex-direction:column;align-items:center;gap:12px}
.zizhi-card .zb{width:64px;height:64px;border-radius:14px;display:flex;align-items:center;justify-content:center;background:var(--fill1);border:1px solid #CFE3FA}
.zizhi-card .zb svg{width:36px;height:36px}
.zizhi-card h3{font-size:16px;color:var(--txt)}
.zizhi-card p{font-size:12.5px;color:var(--txt3)}
/* ============ 双栏（百科+资讯） ============ */
.duo-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.duo-col .duo-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;padding-bottom:14px;border-bottom:1px solid var(--bd)}
.duo-col .duo-head h3{font-size:20px;display:flex;align-items:center;gap:10px;color:var(--txt)}
.duo-col .duo-head h3::before{content:"";width:4px;height:20px;border-radius:2px;background:linear-gradient(180deg,var(--sky),var(--blue))}
.duo-col .duo-head a{font-size:13px;color:var(--txt3)}
.duo-col .duo-head a:hover{color:var(--blue)}
.news-li{display:flex;gap:14px;padding:13px 12px;border-radius:12px;transition:background .3s;align-items:flex-start}
.news-li:hover{background:var(--fill1)}
.news-li .nl-date{flex-shrink:0;text-align:center;padding:6px 10px;border-radius:10px;background:var(--fill1);border:1px solid #CFE3FA;font-variant-numeric:tabular-nums}
.news-li .nl-date b{display:block;font-size:20px;color:var(--blue);line-height:1.2}
.news-li .nl-date span{font-size:11px;color:var(--txt3)}
.news-li h4{font-size:15px;font-weight:600;line-height:1.55;color:var(--txt)}
.news-li h4 a:hover{color:var(--blue)}
.news-li p{font-size:12.5px;color:var(--txt3);margin-top:4px;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
/* ============ CTA ============ */
.cta-band{padding:0}
.cta-in{padding:clamp(40px,6vw,72px) clamp(24px,5vw,64px);text-align:center;position:relative;overflow:hidden;
  background:linear-gradient(120deg,rgba(22,104,220,.08),rgba(255,255,255,.6) 45%,rgba(234,118,0,.07))}
.cta-in::before{content:"";position:absolute;inset:0;background:radial-gradient(ellipse 50% 80% at 50% 120%,rgba(234,118,0,.10),transparent 70%)}
.cta-in h2{font-size:clamp(26px,3.6vw,40px);font-weight:800;margin-bottom:14px;position:relative;color:var(--txt)}
.cta-in .cta-sub{color:var(--txt2);font-size:15px;margin-bottom:30px;position:relative;letter-spacing:.04em}
.cta-in .btn{position:relative}
/* ============ Footer ============ */
#zx-footer{position:relative;background:linear-gradient(180deg,#10336B,#0B2150);border-top:1px solid #1668DC33;padding:64px 0 0;min-height:auto;color:rgba(255,255,255,.85)}
.ft-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr 1.1fr;gap:36px;padding-bottom:44px}
.ft-col h4{font-size:15px;font-weight:700;margin-bottom:16px;color:#fff;position:relative;padding-left:14px}
.ft-col h4::before{content:"";position:absolute;left:0;top:4px;bottom:4px;width:3px;border-radius:2px;background:linear-gradient(180deg,var(--sky),var(--blue))}
.ft-col p{font-size:13px;color:rgba(255,255,255,.55);line-height:1.9}
.ft-col a{display:block;font-size:13.5px;color:rgba(255,255,255,.72);padding:4.5px 0}
.ft-col a:hover{color:var(--sky)}
.ft-about .nav-logo{margin-bottom:14px}
.ft-about .nav-logo .logo-txt b{color:#fff}
.ft-badges{display:flex;gap:10px;margin-top:16px;flex-wrap:wrap}
.ft-badges .zbadge{height:26px;font-size:10px;background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.2);color:rgba(255,255,255,.75)}
.ft-contact li{display:flex;gap:10px;font-size:13.5px;color:rgba(255,255,255,.72);padding:5px 0;align-items:flex-start}
.ft-contact svg{width:16px;height:16px;flex-shrink:0;margin-top:4px}
.ft-links{display:flex;gap:14px;flex-wrap:wrap}
.ft-links a{display:inline;font-size:12.5px;color:rgba(255,255,255,.45)}
.ft-links a:hover{color:var(--sky)}
.ft-bar{border-top:1px solid rgba(255,255,255,.12);padding:18px 0;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:12.5px;color:rgba(255,255,255,.45)}
/* ============ 内页 Hero ============ */
.sub-hero{position:relative;min-height:100vh;min-height:100svh;display:flex;align-items:center;padding:calc(var(--nav-h) + 30px) 0;overflow:hidden;
  background:radial-gradient(ellipse 60% 45% at 70% 20%,rgba(22,104,220,.08),transparent 65%),linear-gradient(180deg,#FFFFFF,#EAF3FC)}
.sub-hero .zx-wrap{z-index:2}
.crumb{display:inline-flex;align-items:center;gap:8px;padding:8px 18px;border-radius:30px;font-size:13px;color:var(--txt2);background:var(--card);border:1px solid var(--bd);margin-bottom:24px}
.crumb a:hover{color:var(--blue)}
.crumb i{width:4px;height:4px;border-radius:50%;background:var(--txt3)}
.sub-hero h1{font-size:clamp(34px,5vw,58px);font-weight:800;letter-spacing:.02em;margin-bottom:18px;color:var(--txt)}
.sub-hero .sub-desc{font-size:clamp(14px,1.5vw,17px);color:var(--txt2);max-width:760px;line-height:1.9}
.sub-hero .hero-cta{justify-content:flex-start;margin-top:32px}
/* 列表布局 */
.list-layout{display:grid;grid-template-columns:1fr 320px;gap:28px;align-items:start}
.list-grid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:18px}
.lcard{display:flex;flex-direction:column;gap:12px;padding:22px;transition:all .3s;position:relative;overflow:hidden}
.lcard::after{content:"";position:absolute;bottom:0;left:0;right:0;height:2px;background:linear-gradient(90deg,var(--blue),var(--sky));transform:scaleX(0);transition:transform .4s;transform-origin:left}
.lcard:hover{transform:translateY(-6px);border-color:rgba(56,189,248,.5);box-shadow:0 18px 44px rgba(20,60,120,.12)}
.lcard:hover::after{transform:scaleX(1)}
.lcard .lc-tag{align-self:flex-start;font-size:11px;padding:3px 10px;border-radius:20px;background:var(--fill1);color:var(--blue);border:1px solid #CFE3FA}
.lcard h3{font-size:16px;line-height:1.6;font-weight:600;color:var(--txt)}
.lcard h3 a:hover{color:var(--blue)}
.lcard p{font-size:13px;color:var(--txt2);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;min-height:60px}
.lcard .lc-meta{display:flex;justify-content:space-between;font-size:12px;color:var(--txt3);margin-top:auto;padding-top:10px;border-top:1px dashed var(--bd)}
/* 分页 */
.pager{display:flex;justify-content:center;gap:8px;margin-top:40px;flex-wrap:wrap}
.pager a,.pager span{min-width:40px;height:40px;padding:0 12px;display:inline-flex;align-items:center;justify-content:center;border-radius:20px;font-size:14px;color:var(--txt2);background:var(--card);border:1px solid var(--bd)}
.pager a:hover{color:var(--blue);border-color:var(--sky)}
.pager .cur,.pager b{background:linear-gradient(135deg,var(--blue),var(--blue2));color:#fff;border-color:transparent}
/* 侧栏 */
.aside-box{padding:22px;margin-bottom:20px}
.aside-box h4{font-size:15px;font-weight:700;margin-bottom:14px;padding-bottom:12px;border-bottom:1px solid var(--bd);display:flex;align-items:center;gap:8px;color:var(--txt)}
.aside-box h4::before{content:"";width:3px;height:16px;border-radius:2px;background:linear-gradient(180deg,var(--sky),var(--blue))}
.aside-nav a{display:flex;align-items:center;gap:8px;padding:8px 10px;border-radius:8px;font-size:13.5px;color:var(--txt2)}
.aside-nav a:hover,.aside-nav a.on{background:var(--fill1);color:var(--blue)}
.aside-nav a::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--sky);flex-shrink:0}
.hot-li{display:flex;gap:10px;padding:9px 4px;border-bottom:1px dashed var(--bd);align-items:flex-start}
.hot-li:last-child{border:0}
.hot-li .hn{width:20px;height:20px;border-radius:6px;flex-shrink:0;display:flex;align-items:center;justify-content:center;font-size:11px;font-weight:700;background:var(--fill1);color:var(--txt3);margin-top:3px}
.hot-li:nth-child(1) .hn{background:linear-gradient(135deg,#f08800,var(--orange));color:#fff}
.hot-li:nth-child(2) .hn{background:linear-gradient(135deg,var(--blue),var(--sky));color:#fff}
.hot-li:nth-child(3) .hn{background:rgba(56,189,248,.25);color:var(--blue)}
.hot-li h5{font-size:13.5px;font-weight:500;line-height:1.55;color:var(--txt)}
.hot-li h5 a:hover{color:var(--blue)}
/* ============ 内容页 ============ */
.a-hero{position:relative;min-height:100vh;min-height:100svh;display:flex;align-items:flex-end;padding:calc(var(--nav-h) + 40px) 0 70px;overflow:hidden;
  background:linear-gradient(180deg,radial-gradient(ellipse 60% 50% at 70% 10%,rgba(22,104,220,.08),transparent 65%),transparent 30%),linear-gradient(180deg,#FFFFFF,var(--bg2))}
.a-hero .zx-wrap{z-index:2}
.a-hero .a-panel{padding:clamp(26px,4vw,52px)}
.a-hero h1{font-size:clamp(26px,3.6vw,44px);font-weight:800;line-height:1.45;margin:16px 0 20px;color:var(--txt)}
.a-meta{display:flex;flex-wrap:wrap;gap:10px}
.a-meta span{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--txt2);padding:6px 14px;border-radius:20px;background:var(--fill1);border:1px solid #CFE3FA}
.a-meta svg{width:14px;height:14px}
/* 正文 */
.a-body{position:relative}
.a-body .zx-wrap{z-index:2}
.article-shell{padding:clamp(24px,4vw,56px)}
.article-body{font-size:16px;line-height:2;color:#28394F}
.article-body p{margin-bottom:18px}
.article-body h2{display:flex;align-items:center;gap:12px;margin:38px 0 18px;padding:10px 18px;border-radius:12px;font-size:20px;font-weight:700;background:linear-gradient(90deg,var(--light1),var(--light2),var(--light3));color:#0A192F;position:relative}
.article-body h2::before{content:"";position:absolute;left:0;top:8px;bottom:8px;width:4px;border-radius:2px;background:linear-gradient(180deg,var(--blue),var(--orange))}
.article-body h3{font-size:18px;margin:26px 0 14px;color:var(--txt);font-weight:700;padding-left:12px;border-left:3px solid var(--sky)}
.article-body a{color:var(--blue);border-bottom:1px dashed rgba(22,104,220,.4)}
.article-body img{border-radius:12px;margin:20px auto;border:1px solid var(--bd)}
.article-body strong{color:var(--txt)}
.article-body ul,.article-body ol{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:18px 0}
.article-body ul li,.article-body ol li{position:relative;padding:12px 14px 12px 38px;background:var(--fill2);border:1px solid var(--bd);border-radius:10px;font-size:14.5px;color:var(--txt)}
.article-body ul li::before{content:"";position:absolute;left:14px;top:19px;width:7px;height:11px;border-right:2px solid var(--blue);border-bottom:2px solid var(--blue);transform:rotate(40deg)}
.article-body ol{counter-reset:oli}
.article-body ol li{counter-increment:oli}
.article-body ol li::before{content:counter(oli);position:absolute;left:12px;top:10px;width:20px;height:20px;border-radius:6px;background:linear-gradient(135deg,var(--blue),var(--sky));color:#fff;font-size:12px;font-weight:700;display:flex;align-items:center;justify-content:center;border:0;transform:none}
.article-body table{width:100%;border-collapse:separate;border-spacing:0;margin:22px 0;border-radius:12px;overflow:hidden;border:1px solid rgba(22,104,220,.3);font-size:14px}
.article-body thead th{background:linear-gradient(135deg,var(--blue),var(--blue2));color:#fff;font-weight:600;padding:12px 14px;text-align:left;white-space:nowrap}
.article-body tbody td{padding:11px 14px;border-top:1px solid var(--bd);color:var(--txt2)}
.article-body tbody tr:nth-child(even){background:var(--fill2)}
.article-body tbody tr:hover{background:rgba(22,104,220,.06)}
.article-body blockquote{margin:20px 0;padding:16px 20px;border-left:3px solid var(--orange);background:rgba(234,118,0,.06);border-radius:0 12px 12px 0;color:var(--txt2);font-size:14.5px}
/* 上下篇 */
.pn-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:34px}
.pn-card{padding:20px 22px;display:flex;flex-direction:column;gap:6px;transition:all .3s;background:linear-gradient(135deg,var(--fill2),rgba(22,104,220,.06))}
.pn-card:hover{transform:translateY(-4px);border-color:rgba(56,189,248,.5)}
.pn-card span{font-size:12px;color:var(--txt3);letter-spacing:.15em}
.pn-card b{font-size:14.5px;font-weight:600;line-height:1.6;color:var(--txt)}
.pn-card b a:hover{color:var(--blue)}
.pn-card.next{text-align:right}
/* 相关推荐 */
.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:18px}
.rel-card{padding:18px;display:flex;flex-direction:column;gap:8px;transition:all .3s}
.rel-card:hover{transform:translateY(-4px);border-color:rgba(56,189,248,.5)}
.rel-card h4{font-size:14.5px;line-height:1.6;font-weight:600;color:var(--txt)}
.rel-card h4 a:hover{color:var(--blue)}
.rel-card .d-meta{font-size:12px;color:var(--txt3);margin-top:auto}
/* 双按钮 CTA（内容页底部） */
.dual-cta{display:flex;gap:18px;justify-content:center;margin-top:36px;flex-wrap:wrap}
/* ============ 封面页 ============ */
.cover-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:18px;margin-bottom:56px}
.cover-grid.cols2{grid-template-columns:repeat(2,1fr)}
.cover-card{padding:26px 20px;display:flex;flex-direction:column;gap:10px;text-align:center;align-items:center;transition:all .3s}
.cover-card:hover{transform:translateY(-6px);border-color:rgba(56,189,248,.5);box-shadow:0 18px 44px rgba(20,60,120,.12)}
.cover-card .svc-ico{width:52px;height:52px}
.cover-card h3{font-size:16px;color:var(--txt)}
.cover-card p{font-size:12.5px;color:var(--txt3);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
/* ============ 悬浮fab ============ */
#zx-fab{position:fixed;right:26px;bottom:132px;z-index:8700;display:flex;flex-direction:column;gap:12px;align-items:center}
#zx-fab .fab-btn{width:56px;height:56px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#f08800,var(--orange));color:#fff;box-shadow:0 10px 30px var(--orange-glow);transition:all .3s;position:relative}
#zx-fab .fab-btn:hover{transform:scale(1.08)}
#zx-fab .fab-btn svg{width:24px;height:24px}
#zx-fab .fab-top{background:var(--card);border:1px solid var(--bd);box-shadow:0 10px 30px rgba(20,60,120,.15)}
#zx-fab .fab-btn .fab-tip{position:absolute;right:66px;top:50%;transform:translateY(-50%);white-space:nowrap;font-size:12px;padding:6px 12px;border-radius:8px;background:#fff;border:1px solid var(--bd);color:var(--txt);opacity:0;visibility:hidden;transition:all .3s;pointer-events:none;box-shadow:0 6px 20px rgba(20,60,120,.1)}
#zx-fab .fab-btn:hover .fab-tip{opacity:1;visibility:visible}
/* ============ 入场动效 ============ */
[data-reveal]{opacity:0;transform:translateY(24px);transition:opacity .6s ease,transform .6s cubic-bezier(.22,1,.36,1)}
[data-reveal].in{opacity:1;transform:translateY(0)}
.no-motion [data-reveal]{opacity:1;transform:none;transition:none}
/* ============ 响应式 ============ */
@media (max-width:1366px){
  .svc-grid{grid-template-columns:repeat(4,1fr)}
  .nav-menu>li>a{padding:8px 10px;font-size:14px}
}
@media (max-width:1200px){
  .svc-grid{grid-template-columns:repeat(3,1fr)}
  .cover-grid{grid-template-columns:repeat(3,1fr)}
  .card-grid.c4{grid-template-columns:repeat(3,1fr)}
  .nav-badges{display:none}
  .list-layout{grid-template-columns:1fr 300px}
  .list-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:1023px){
  .nav-menu{display:none}
  #nav-burger{display:flex}
  .nav-search-btn{display:none}
  .about-flex{grid-template-columns:1fr;gap:30px}
  .about-visual{min-height:280px}
  .duo-grid{grid-template-columns:1fr}
  .flow-row{grid-template-columns:1fr 1fr;gap:26px 0}
  .flow-step:nth-child(2)::after{display:none}
  .list-layout{grid-template-columns:1fr}
  .ft-grid{grid-template-columns:1fr 1fr}
  .rel-grid{grid-template-columns:1fr 1fr}
  .article-body ul,.article-body ol{grid-template-columns:1fr}
}
@media (max-width:767px){
  :root{--nav-h:60px}
  .zx-section{padding:calc(var(--nav-h) + 20px) 0 40px}
  .svc-grid{grid-template-columns:1fr 1fr}
  .cover-grid{grid-template-columns:1fr 1fr}
  .cover-grid.cols2{grid-template-columns:1fr}
  .card-grid,.card-grid.c4{grid-template-columns:1fr}
  .list-grid{grid-template-columns:1fr}
  .hero-stats .stats-in{grid-template-columns:1fr 1fr;gap:10px 0}
  .stat:nth-child(3)::before{display:none}
  .hero-cta .btn{width:100%;max-width:320px}
  .hero-sub{font-size:14px}
  .scroll-down{display:none}
  .about-nums{grid-template-columns:1fr 1fr 1fr;gap:10px}
  .flow-row{grid-template-columns:1fr;gap:24px}
  .flow-step::after{display:none}
  .pn-grid{grid-template-columns:1fr}
  .rel-grid{grid-template-columns:1fr}
  .ft-grid{grid-template-columns:1fr 1fr;gap:26px}
  .ft-bar{justify-content:center;text-align:center}
  .article-body h2{font-size:17px}
  .article-body{font-size:15px}
  .article-shell{padding:20px 16px}
  #zx-fab{right:16px;bottom:132px}
  .zx-marquee .mq-track{gap:40px}
  .dual-cta .btn{width:100%;max-width:320px}
  .sub-hero .hero-cta{margin-top:24px}
  .sub-hero .hero-cta .btn{width:100%;max-width:320px}
  .a-meta{gap:6px}
  .a-meta span{font-size:11.5px;padding:4px 10px}
}
@media (max-width:400px){
  .svc-grid{grid-template-columns:1fr}
  .about-nums{grid-template-columns:1fr;gap:10px}
  .nav-logo .logo-txt b{font-size:16px}
  .btn-consult-sm{padding:0 14px;font-size:13px}
}
/* ============ 动效降级 ============ */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001s !important;animation-iteration-count:1 !important;transition-duration:.001s !important}
  html{scroll-behavior:auto}
  [data-reveal]{opacity:1;transform:none}
  .hero-title .line i{transform:none;animation:none}
  .zx-marquee .mq-track{animation:none;flex-wrap:wrap;width:auto;justify-content:center}
}
/* 隐藏自定义光标（浅色版不启用） */
#zx-cursor-dot,#zx-cursor-ring{display:none !important}