/* ============================================================
   欣泰环境 · 官网 V2 视觉系统（预览）
   明亮 / 蓝色 / 科技 / 专业 / 阳光
   ============================================================ */
:root{
  --forest:#0B3A6E;
  --forest-2:#072C55;
  --ink:#102E52;
  --ink-2:#1E4670;
  --green:#1E9BF0;
  --deep:#006BD3;
  --dark:#005A9E;
  --lime:#8FD3F8;
  --mint:#E9F4FD;
  --mint-2:#F4FAFF;
  --mint-3:#DCEDFB;
  --paper:#FBFDFF;
  --sky:#3FA9F5;
  --peach:#FFD9C2;
  --butter:#FFF3C4;
  --muted:#59718A;
  --muted-2:#86A0B8;
  --line:#D9E9F6;
  --line-2:#C2DEF3;
  --shadow:0 18px 46px rgba(11,58,110,.12);
  --shadow-sm:0 8px 22px rgba(11,58,110,.08);
  --max:1240px;
  --nav-h:72px;
  --ease:cubic-bezier(.22,.8,.3,1);
}
*{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Helvetica Neue",sans-serif;
  color:var(--ink);
  background:var(--paper);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;cursor:pointer;border:0;background:none;}
.icon{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;}
.container{max-width:var(--max);margin:0 auto;padding:0 28px;}
::selection{background:rgba(0,107,211,.22);}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:fixed;inset:0 0 auto 0;z-index:60;
  height:var(--nav-h);
  background:rgba(251,253,255,.82);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(217,233,246,.7);
  transition:box-shadow .3s ease,background .3s ease;
}
.site-header.scrolled{background:rgba(251,253,255,.96);box-shadow:0 6px 24px rgba(11,58,110,.08);}
.nav-wrap{height:var(--nav-h);display:flex;align-items:center;gap:26px;}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0;}
.brand-mark{position:relative;width:48px;height:48px;background:none;border:0;border-radius:0;display:flex;align-items:center;justify-content:center;}
.brand-mark img{width:42px;height:42px;object-fit:contain;}
.brand-reg{position:absolute;right:-6px;top:-7px;font-size:15px;font-weight:700;color:var(--deep);line-height:1;animation:brandRegSpin 4s cubic-bezier(.65,0,.35,1) infinite;text-shadow:0 1px 4px rgba(255,255,255,.9);}
@keyframes brandRegSpin{0%{transform:rotate(0deg)}25%{transform:rotate(360deg)}100%{transform:rotate(360deg)}}
@media (prefers-reduced-motion:reduce){.brand-reg{animation:none;}}
.brand-text{display:flex;flex-direction:column;line-height:1.08;}
.brand-text b{font-size:17px;font-weight:800;letter-spacing:2.5px;color:var(--ink);}
.brand-text i{font-style:normal;font-size:9px;letter-spacing:1.5px;color:var(--muted-2);margin-top:5px;}
.nav{margin-left:auto;display:flex;align-items:center;gap:2px;}
.nav a{padding:8px 14px;border-radius:20px;font-size:14px;color:#3F5E7E;transition:all .22s ease;white-space:nowrap;}
.nav a:hover{background:var(--mint);color:var(--dark);}
.nav a.active{background:var(--green);color:#fff;font-weight:600;box-shadow:0 4px 12px rgba(0,107,211,.28);}
.nav .nav-login{margin-left:10px;border:1px solid var(--line-2);background:#fff;color:var(--ink);font-weight:600;padding:8px 18px;}
.nav .nav-login:hover{background:var(--forest);border-color:var(--forest);color:#fff;}
.nav-toggle{display:none;margin-left:auto;width:40px;height:40px;border-radius:12px;border:1px solid var(--line);align-items:center;justify-content:center;color:var(--ink);}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;height:50px;padding:0 28px;border-radius:26px;font-size:15px;font-weight:600;transition:all .24s var(--ease);border:1px solid transparent;white-space:nowrap;}
.btn .icon{width:17px;height:17px;transition:transform .24s var(--ease);}
.btn:hover .icon{transform:translateX(3px);}
.btn-primary{background:linear-gradient(135deg,var(--deep),var(--green));color:#fff;box-shadow:0 12px 28px rgba(0,107,211,.3);}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 34px rgba(0,107,211,.36);}
.btn-ghost{background:#fff;border-color:var(--line-2);color:var(--ink);}
.btn-ghost:hover{border-color:var(--green);color:var(--dark);transform:translateY(-2px);}
.btn-light{background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.45);color:#fff;}
.btn-light:hover{background:#fff;color:var(--dark);}

/* ---------- 首屏五屏轮播 ---------- */
.hero{position:relative;height:min(94vh,860px);min-height:660px;overflow:hidden;background:var(--mint-2);}
.hero-slide{position:absolute;inset:0;opacity:0;visibility:hidden;transition:opacity 1.1s var(--ease),visibility 1.1s;}
.hero-slide.active{opacity:1;visibility:visible;z-index:2;}
.hero-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:78% 42%;transform:scale(1.05);}
.hero-slide.active .hero-img{animation:heroZoom 8s linear forwards;}
.hero-slide:nth-child(5) .hero-img{object-position:50% 40%;}
@keyframes heroZoom{from{transform:scale(1.06);}to{transform:scale(1);}}
.hero-scrim{position:absolute;inset:0;
  background:
    linear-gradient(90deg,#F8FBFF 0%,rgba(248,251,255,.98) 22%,rgba(248,251,255,.9) 38%,rgba(248,251,255,.55) 52%,rgba(248,251,255,.06) 68%,rgba(248,251,255,0) 78%),
    linear-gradient(180deg,rgba(248,251,255,.9) 0%,rgba(248,251,255,0) 16%,rgba(248,251,255,0) 78%,#F8FBFF 100%);
}
.hero-content{position:relative;z-index:3;height:100%;display:flex;align-items:center;padding-top:var(--nav-h);}
.hero-copy{max-width:620px;padding-bottom:26px;}
.hero-kicker{display:inline-flex;align-items:center;gap:10px;font-size:11.5px;letter-spacing:2.2px;font-weight:700;color:var(--dark);background:rgba(0,107,211,.1);border:1px solid rgba(0,107,211,.22);padding:8px 15px;border-radius:22px;}
.hero-kicker .dash{width:18px;height:1px;background:var(--green);}
.hero h1{font-size:clamp(38px,4.4vw,62px);line-height:1.16;font-weight:800;letter-spacing:1.5px;margin:22px 0 0;color:var(--ink);}
.hero h1 span{position:relative;display:inline-block;color:var(--deep);z-index:1;}
.hero h1 span::after{content:"";position:absolute;left:0;right:0;bottom:6px;height:12px;border-radius:7px;background:var(--lime);opacity:.42;z-index:-1;}
.hero-copy p{font-size:15px;line-height:1.95;color:var(--muted);margin:20px 0 0;max-width:520px;}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px;}
.hero-facts{display:flex;align-items:center;gap:22px;flex-wrap:wrap;margin-top:34px;padding-top:22px;border-top:1px dashed var(--line-2);font-size:12.5px;color:var(--muted);}
.hero-facts b{color:var(--ink);font-weight:700;}
.hero-facts .dot{width:6px;height:6px;border-radius:50%;background:var(--green);display:inline-block;margin-right:7px;vertical-align:1px;box-shadow:0 0 0 4px rgba(0,107,211,.1);}

/* 守护徽章 */
.guard-badge{position:absolute;right:40px;bottom:104px;z-index:4;display:flex;flex-direction:column;align-items:center;gap:10px;padding:18px 16px 15px;border-radius:20px;background:rgba(255,255,255,.86);border:1px solid rgba(255,255,255,.9);box-shadow:0 18px 40px rgba(11,58,110,.16);backdrop-filter:blur(10px);}
.guard-badge svg{width:36px;height:36px;fill:none;stroke:var(--deep);stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round;}
.guard-badge b{font-size:13px;letter-spacing:1.5px;color:var(--ink);}
.guard-badge span{font-size:9.5px;letter-spacing:1.6px;color:var(--muted-2);}

/* 首屏内容入场 */
.hero-slide .hero-kicker,
.hero-slide .hero-copy h1,
.hero-slide .hero-copy p,
.hero-slide .hero-actions,
.hero-slide .hero-facts,
.hero-slide .guard-badge{opacity:0;transform:translateY(26px);}
.hero-slide.active .hero-kicker{animation:heroRise .8s .12s var(--ease) forwards;}
.hero-slide.active .hero-copy h1{animation:heroRise .9s .22s var(--ease) forwards;}
.hero-slide.active .hero-copy p{animation:heroRise .9s .34s var(--ease) forwards;}
.hero-slide.active .hero-actions{animation:heroRise .9s .44s var(--ease) forwards;}
.hero-slide.active .hero-facts{animation:heroRise .9s .54s var(--ease) forwards;}
.hero-slide.active .guard-badge{animation:heroRise .9s .6s var(--ease) forwards;}
@keyframes heroRise{to{opacity:1;transform:translateY(0);}}

/* 首屏控制 */
.hero-ui{position:absolute;left:0;right:0;bottom:50px;z-index:6;display:flex;align-items:center;justify-content:space-between;gap:20px;}
.hero-dots{display:flex;align-items:center;gap:10px;}
.hero-dot{display:flex;align-items:center;gap:9px;min-height:44px;font-size:13px;color:#2E4E73;letter-spacing:1px;transition:all .25s;background:rgba(255,255,255,.94);border:1px solid rgba(11,58,110,.24);box-shadow:0 6px 16px rgba(11,58,110,.14);padding:10px 16px;border-radius:999px;cursor:pointer;}
.hero-dot i{display:block;width:0;height:3px;background:var(--green);transition:width .4s var(--ease);border-radius:3px;}
.hero-dot:hover{border-color:var(--green);color:var(--dark);transform:translateY(-1px);}
.hero-dot.active{color:#fff;font-weight:700;background:linear-gradient(135deg,var(--deep),var(--green));border-color:transparent;box-shadow:0 10px 24px rgba(0,107,211,.32);}
.hero-dot.active i{width:30px;background:#fff;}
.hero-arrows{display:flex;gap:10px;}
.hero-arrow{width:54px;height:54px;border-radius:50%;border:1px solid rgba(11,58,110,.16);background:#fff;color:var(--ink);display:flex;align-items:center;justify-content:center;transition:all .22s;box-shadow:0 10px 24px rgba(11,58,110,.16);cursor:pointer;}
.hero-arrow:hover{background:var(--green);border-color:var(--green);color:#fff;transform:translateY(-2px);box-shadow:0 14px 28px rgba(0,107,211,.30);}
.hero-arrow .icon{width:21px;height:21px;}
.hero-arrow.prev .icon{transform:rotate(180deg);}

/* ---------- 通用区块 ---------- */
.section{padding:92px 0;position:relative;}
.section.soft{background:linear-gradient(180deg,rgba(233,244,253,.6),rgba(244,250,255,.35));}
.section.tight{padding:64px 0;}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:30px;margin-bottom:44px;flex-wrap:wrap;}
.sec-head .eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:11px;letter-spacing:2.6px;font-weight:700;color:var(--deep);text-transform:uppercase;}
.sec-head .eyebrow::before{content:"";width:26px;height:1px;background:var(--green);}
.sec-head h2{font-size:clamp(27px,2.6vw,38px);line-height:1.3;font-weight:800;letter-spacing:.6px;margin:12px 0 0;}
.sec-head p{font-size:14.5px;line-height:1.9;color:var(--muted);margin:13px 0 0;max-width:640px;}
.sec-more{display:inline-flex;align-items:center;gap:8px;font-size:13.5px;font-weight:600;color:var(--dark);white-space:nowrap;transition:gap .2s;}
.sec-more:hover{gap:12px;color:var(--green);}
.sec-more .icon{width:16px;height:16px;}

/* 丝带四项 */
.trust-strip{position:relative;z-index:7;margin-top:-46px;}
.trust-inner{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:20px;overflow:hidden;box-shadow:var(--shadow-sm);}
.trust-item{background:#fff;padding:22px 24px;display:flex;align-items:center;gap:14px;}
.trust-item .ico{width:42px;height:42px;border-radius:13px;background:var(--mint);color:var(--dark);display:flex;align-items:center;justify-content:center;flex-shrink:0;}
.trust-item b{display:block;font-size:14px;color:var(--ink);letter-spacing:.4px;}
.trust-item span{display:block;font-size:11.5px;color:var(--muted-2);margin-top:3px;}

/* ---------- 五重守护 ---------- */
.guard-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:16px;}
.guard-card{position:relative;overflow:hidden;border-radius:20px;background:#fff;border:1px solid var(--line);padding:28px 22px 26px;transition:all .28s var(--ease);}
.guard-card::after{content:"";position:absolute;inset:auto -30% -60% auto;width:160px;height:160px;border-radius:50%;background:radial-gradient(circle,rgba(143,211,248,.25),transparent 70%);opacity:0;transition:opacity .3s;}
.guard-card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:var(--line-2);}
.guard-card:hover::after{opacity:1;}
.guard-card .no{font-size:10.5px;letter-spacing:2px;color:var(--muted-2);font-weight:700;}
.guard-card .ico{width:46px;height:46px;border-radius:14px;background:linear-gradient(135deg,var(--mint),var(--mint-3));color:var(--dark);display:flex;align-items:center;justify-content:center;margin:16px 0 16px;}
.guard-card h3{font-size:17px;font-weight:800;letter-spacing:.5px;color:var(--ink);}
.guard-card p{font-size:12.5px;line-height:1.8;color:var(--muted);margin-top:8px;}

/* ---------- 服务板块 ---------- */
.svc-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;}
.svc-card{position:relative;background:#fff;border:1px solid var(--line);border-radius:18px;padding:26px 22px;transition:all .26s var(--ease);display:flex;flex-direction:column;min-height:190px;}
.svc-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-sm);border-color:var(--line-2);}
.svc-card .no{font-size:11px;letter-spacing:1.5px;font-weight:800;color:var(--green);}
.svc-card h3{font-size:16.5px;font-weight:700;color:var(--ink);margin-top:12px;}
.svc-card p{font-size:12.5px;line-height:1.8;color:var(--muted);margin-top:8px;flex:1;}
.svc-card .go{display:inline-flex;align-items:center;gap:6px;font-size:12px;color:var(--dark);margin-top:14px;font-weight:600;opacity:0;transform:translateY(4px);transition:all .24s;}
.svc-card:hover .go{opacity:1;transform:none;}
.svc-card .go .icon{width:14px;height:14px;}
.svc-thumb{height:112px;border-radius:12px;overflow:hidden;margin-bottom:16px;background:var(--mint);}
.svc-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .55s var(--ease);}
.svc-card:hover .svc-thumb img{transform:scale(1.05);}

/* ---------- 服务流程 ---------- */
.flow{position:relative;display:grid;grid-template-columns:repeat(5,1fr);gap:18px;padding-top:26px;}
.flow::before{content:"";position:absolute;left:6%;right:6%;top:58px;height:1px;background:linear-gradient(90deg,transparent,var(--line-2) 10%,var(--line-2) 90%,transparent);}
.flow-line{position:absolute;left:6%;top:58px;height:2px;width:0;background:linear-gradient(90deg,var(--deep),var(--lime));border-radius:2px;transition:width 1.6s var(--ease);}
.flow.in .flow-line{width:88%;}
.flow-step{position:relative;text-align:left;padding:0 4px;}
.flow-step .node{width:38px;height:38px;border-radius:50%;background:#fff;border:1px solid var(--line-2);display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:800;color:var(--dark);position:relative;z-index:2;margin:12px 0 20px;transition:all .3s;}
.flow-step:hover .node{background:var(--green);border-color:var(--green);color:#fff;box-shadow:0 8px 18px rgba(0,107,211,.28);}
.flow-step h3{font-size:16px;font-weight:700;color:var(--ink);}
.flow-step p{font-size:12.5px;line-height:1.8;color:var(--muted);margin-top:8px;}

/* ---------- 行业矩阵 ---------- */
.ind-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:22px;overflow:hidden;}
.ind-item{position:relative;background:#fff;min-height:156px;padding:24px 22px;display:flex;flex-direction:column;justify-content:space-between;transition:all .26s var(--ease);}
.ind-item:hover{background:linear-gradient(150deg,var(--deep),var(--green) 70%,#4FB3F5);color:#fff;}
.ind-item .no{font-size:10px;letter-spacing:1.6px;color:var(--muted-2);font-weight:700;transition:color .25s;}
.ind-item:hover .no{color:rgba(255,255,255,.7);}
.ind-item h3{font-size:17px;font-weight:700;letter-spacing:.4px;}
.ind-item span{font-size:11.5px;color:var(--muted-2);margin-top:6px;transition:color .25s;}
.ind-item:hover span{color:rgba(255,255,255,.86);}
.ind-item .icon{position:absolute;right:18px;top:20px;width:20px;height:20px;color:var(--line-2);transition:all .25s;}
.ind-item:hover .icon{color:rgba(255,255,255,.7);transform:translate(2px,-2px);}
.span2{grid-column:span 2;}
.span3{grid-column:span 3;}

/* ---------- 图文分栏 ---------- */
.feature{display:grid;grid-template-columns:1.05fr .95fr;gap:52px;align-items:center;}
.feature.rev{grid-template-columns:.95fr 1.05fr;}
.feature-img{position:relative;border-radius:24px;overflow:hidden;box-shadow:var(--shadow);}
.feature-img img{width:100%;height:430px;object-fit:cover;transition:transform .8s var(--ease);}
.feature:hover .feature-img img{transform:scale(1.03);}
.feature-img .tag{position:absolute;left:18px;bottom:18px;background:rgba(255,255,255,.92);backdrop-filter:blur(8px);border-radius:14px;padding:12px 16px;display:flex;align-items:center;gap:10px;box-shadow:0 8px 22px rgba(11,58,110,.14);}
.feature-img .tag b{font-size:13px;color:var(--ink);}
.feature-img .tag span{font-size:10.5px;color:var(--muted-2);display:block;}
.feature-img .tag .ico{width:34px;height:34px;border-radius:10px;background:var(--mint);color:var(--dark);display:flex;align-items:center;justify-content:center;}
.feature-body h2{font-size:clamp(26px,2.4vw,34px);line-height:1.35;font-weight:800;margin:12px 0 0;letter-spacing:.5px;}
.feature-body p{font-size:14px;line-height:1.9;color:var(--muted);margin:16px 0 0;}
.check-list{list-style:none;margin:22px 0 0;display:grid;grid-template-columns:1fr 1fr;gap:12px 18px;}
.check-list li{display:flex;align-items:center;gap:9px;font-size:13px;color:var(--ink-2);}
.check-list .icon{width:17px;height:17px;color:var(--green);flex-shrink:0;}

/* ---------- 昆虫科普 ---------- */
.pest-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;}
.pest-card{background:#fff;border:1px solid var(--line);border-radius:20px;padding:12px;transition:all .26s var(--ease);}
.pest-card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:var(--line-2);}
.pest-visual{aspect-ratio:4/3;border-radius:15px;background:linear-gradient(160deg,#F2F8FE,#E6F2FC);display:flex;align-items:center;justify-content:center;padding:10px;}
.pest-visual img{width:72%;height:72%;object-fit:contain;transition:transform .4s var(--ease);}
.pest-card:hover .pest-visual img{transform:scale(1.06) rotate(-2deg);}
.pest-body{padding:15px 10px 10px;}
.pest-body h3{font-size:16px;font-weight:700;}
.pest-body p{font-size:12.5px;line-height:1.75;color:var(--muted);margin-top:6px;}

/* ---------- CTA ---------- */
.cta{position:relative;overflow:hidden;border-radius:28px;padding:56px 54px;background:
  radial-gradient(700px 420px at 8% 0%,rgba(143,211,248,.3),transparent 60%),
  linear-gradient(135deg,#0B3A6E,#006BD3 62%,#1E9BF0);color:#fff;}
.cta::after{content:"";position:absolute;right:-90px;top:-120px;width:380px;height:380px;border-radius:50%;border:1px solid rgba(255,255,255,.14);}
.cta::before{content:"";position:absolute;right:40px;bottom:-160px;width:320px;height:320px;border-radius:50%;border:1px solid rgba(255,255,255,.1);}
.cta h2{font-size:clamp(25px,2.6vw,34px);font-weight:800;letter-spacing:.6px;max-width:620px;line-height:1.4;}
.cta p{font-size:14px;line-height:1.9;color:rgba(255,255,255,.88);margin:14px 0 0;max-width:620px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px;}
.cta-contact{margin-top:24px;font-size:13px;color:rgba(255,255,255,.85);}
.cta-contact b{color:#fff;font-weight:700;letter-spacing:.5px;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--forest-2);color:rgba(255,255,255,.72);padding:64px 0 26px;margin-top:92px;}
.footer-grid{display:grid;grid-template-columns:1.4fr .8fr 1fr;gap:48px;}
.footer-brand{display:flex;align-items:center;gap:12px;}
.footer-brand img{width:42px;height:42px;object-fit:contain;}
.footer-brand b{display:block;color:#fff;font-size:18px;letter-spacing:2px;}
.footer-brand span{display:block;font-size:9px;letter-spacing:1.6px;color:rgba(255,255,255,.5);margin-top:4px;}
.footer-slogan{color:var(--lime);font-size:14px;letter-spacing:1.2px;margin-top:18px;}
.footer-desc{font-size:12.5px;line-height:1.9;color:rgba(255,255,255,.55);margin-top:12px;max-width:380px;}
.footer-col h4{color:#fff;font-size:13px;letter-spacing:1.4px;margin-bottom:14px;font-weight:700;}
.footer-col a,.footer-col p{display:block;font-size:12.5px;color:rgba(255,255,255,.62);margin-bottom:9px;transition:color .2s;}
.footer-col a:hover{color:var(--lime);}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);margin-top:46px;padding-top:20px;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:11.5px;color:rgba(255,255,255,.42);}

/* ---------- 内页首屏 ---------- */
.page-hero{position:relative;overflow:hidden;min-height:380px;padding:calc(var(--nav-h) + 72px) 0 64px;background:linear-gradient(135deg,#F2F8FE 0%,#E4F1FC 55%,#D8EBFA 100%);border-bottom:1px solid rgba(217,233,246,.7);}
.page-hero::after{content:"";position:absolute;right:-120px;top:-140px;width:460px;height:460px;border-radius:50%;background:radial-gradient(circle,rgba(143,211,248,.32),transparent 68%);}
.page-hero .crumb{font-size:12px;color:var(--muted);margin-bottom:16px;position:relative;z-index:1;}
.page-hero .crumb a{color:var(--muted);}
.page-hero .crumb a:hover{color:var(--dark);}
.page-hero h1{font-size:clamp(30px,3.4vw,46px);font-weight:800;letter-spacing:1px;line-height:1.25;position:relative;z-index:1;}
.page-hero .lead{font-size:14.5px;line-height:1.9;color:var(--muted);margin-top:16px;max-width:680px;position:relative;z-index:1;text-wrap:balance;}
.page-hero-art{position:absolute;right:6%;top:calc(50% + 30px);transform:translateY(-50%);display:grid;grid-template-columns:1fr 1fr;gap:12px;width:260px;z-index:1;}
.page-hero-art img{width:100%;aspect-ratio:1/1;object-fit:contain;background:rgba(255,255,255,.72);border:1px solid rgba(255,255,255,.9);border-radius:18px;padding:10px;box-shadow:0 14px 34px rgba(11,58,110,.10);}
.page-hero.with-img{min-height:420px;display:flex;align-items:center;background:var(--forest);}
.page-hero.with-img .bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:72% 42%;}
.page-hero.with-img::before{content:"";position:absolute;inset:0;z-index:1;background:linear-gradient(90deg,rgba(7,44,85,.92) 0%,rgba(7,44,85,.76) 38%,rgba(7,44,85,.18) 66%,transparent 82%);}
.page-hero.with-img .container{position:relative;z-index:2;}
.page-hero.with-img h1,.page-hero.with-img .lead{color:#fff;}
.page-hero.with-img .lead{color:rgba(255,255,255,.85);}
.page-hero.with-img .crumb,.page-hero.with-img .crumb a{color:rgba(255,255,255,.6);}
/* 明亮版首屏：白色滤镜 + 深色文字 */
.page-hero.with-img.bright{background:linear-gradient(135deg,#F4FAFF 0%,#E7F3FE 52%,#D9ECFC 100%);}
.page-hero.with-img.bright .bg{filter:brightness(1.07) saturate(.98);}
.page-hero.with-img.bright::before{background:linear-gradient(90deg,rgba(244,250,255,.98) 0%,rgba(244,250,255,.95) 38%,rgba(240,248,255,.88) 58%,rgba(236,246,255,.55) 76%,rgba(236,246,255,.14) 90%,rgba(236,246,255,0) 100%);}
.page-hero.with-img.bright .container{width:100%;}
.page-hero.with-img.bright h1{color:var(--ink);max-width:620px;}
.page-hero.with-img.bright .lead{color:var(--muted);max-width:560px;}
.page-hero.with-img.bright .crumb,.page-hero.with-img.bright .crumb a{color:var(--muted);}
.page-hero.with-img.bright .crumb a:hover{color:var(--dark);}
/* 桌面端：人物图改为右侧整图展示，避免宽幅裁切导致人物显示不全 */
@media (min-width:901px){
  .page-hero.with-img{min-height:500px;}
  .page-hero.with-img .bg{
    left:auto;right:0;top:72px;bottom:24px;
    width:min(54%,680px);height:auto;
    transform:none;
    object-fit:contain;object-position:right center;
    -webkit-mask-image:linear-gradient(90deg,transparent 0,#000 14%);
    mask-image:linear-gradient(90deg,transparent 0,#000 14%);
  }
  .page-hero.with-img.bright::before{
    background:linear-gradient(90deg,#F4FAFF 0%,rgba(244,250,255,.98) 24%,rgba(242,249,255,.95) 36%,rgba(238,247,255,.80) 46%,rgba(234,245,255,.36) 55%,rgba(234,245,255,0) 66%);
  }
}

/* ---------- 理念页 ---------- */
.idea-steps{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;}
.idea-step{background:#fff;border:1px solid var(--line);border-radius:20px;padding:30px 26px;position:relative;overflow:hidden;transition:all .28s var(--ease);}
.idea-step:hover{transform:translateY(-5px);box-shadow:var(--shadow);}
.idea-step .big{position:absolute;right:14px;top:2px;font-size:76px;font-weight:800;color:rgba(0,107,211,.08);line-height:1;}
.idea-step .no{font-size:11px;letter-spacing:2px;color:var(--green);font-weight:800;}
.idea-step h3{font-size:21px;font-weight:800;margin-top:14px;}
.idea-step .en{font-size:10px;letter-spacing:2px;color:var(--muted-2);margin-top:5px;}
.idea-step p{font-size:13px;line-height:1.85;color:var(--muted);margin-top:14px;}
.idea-step ul{list-style:none;margin-top:14px;display:grid;gap:8px;}
.idea-step li{font-size:12.5px;color:var(--ink-2);display:flex;gap:8px;align-items:flex-start;}
.idea-step li::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--green);margin-top:8px;flex-shrink:0;}

/* ---------- 服务板块页 ---------- */
.svc-layout{display:grid;grid-template-columns:230px 1fr;gap:48px;align-items:start;}
.svc-side{position:sticky;top:calc(var(--nav-h) + 26px);background:#fff;border:1px solid var(--line);border-radius:18px;padding:14px;box-shadow:var(--shadow-sm);}
.svc-side a{display:flex;align-items:center;justify-content:space-between;padding:11px 14px;border-radius:11px;font-size:13px;color:var(--muted);transition:all .2s;}
.svc-side a:hover{background:var(--mint);color:var(--dark);}
.svc-side a.active{background:var(--forest);color:#fff;font-weight:600;}
.svc-side a .no{font-size:10px;opacity:.6;letter-spacing:1px;}
.svc-block{display:grid;grid-template-columns:330px 1fr;gap:30px;align-items:start;padding:14px 0 34px;border-bottom:1px dashed var(--line-2);margin-bottom:30px;}
.svc-block:nth-of-type(even){grid-template-columns:1fr 330px;}
.svc-block:nth-of-type(even) .svc-media{order:2;}
.svc-block:last-child{border-bottom:0;}
.svc-media{border-radius:16px;overflow:hidden;background:var(--mint);box-shadow:var(--shadow-sm);}
.svc-media img{width:100%;height:232px;object-fit:cover;transition:transform .6s var(--ease);}
.svc-block:hover .svc-media img{transform:scale(1.04);}
.svc-body{min-width:0;}
.svc-block .head{display:flex;align-items:flex-start;gap:16px;}
.svc-block .idx{width:46px;height:46px;border-radius:14px;background:var(--mint);color:var(--dark);display:flex;align-items:center;justify-content:center;font-weight:800;font-size:13px;flex-shrink:0;}
.svc-block h2{font-size:23px;font-weight:800;letter-spacing:.4px;}
.svc-block .en{font-size:10px;letter-spacing:2px;color:var(--muted-2);margin-top:5px;}
.svc-block p.desc{font-size:13.5px;line-height:1.9;color:var(--muted);margin-top:14px;}
.svc-points{display:grid;grid-template-columns:1fr 1fr;gap:9px 20px;margin-top:16px;list-style:none;}
.svc-points li{font-size:12.5px;color:var(--ink-2);display:flex;gap:8px;align-items:flex-start;}
.svc-points li .icon{width:15px;height:15px;color:var(--green);margin-top:3px;flex-shrink:0;}
.tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:16px;}
.tag{font-size:11px;background:var(--mint-2);border:1px solid var(--line);color:var(--muted);padding:4px 11px;border-radius:12px;}

/* ---------- 行业页 ---------- */
.ind-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;}
.ind-card{background:#fff;border:1px solid var(--line);border-radius:20px;padding:28px 26px;transition:all .28s var(--ease);display:flex;flex-direction:column;min-height:230px;}
.ind-card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:var(--line-2);}
.ind-card .top{display:flex;align-items:center;justify-content:space-between;}
.ind-card .ico{width:44px;height:44px;border-radius:13px;background:var(--mint);color:var(--dark);display:flex;align-items:center;justify-content:center;}
.ind-card .no{font-size:10px;letter-spacing:1.6px;color:var(--muted-2);font-weight:700;}
.ind-card h3{font-size:19px;font-weight:800;margin-top:18px;}
.ind-card .sub{font-size:11px;letter-spacing:1px;color:var(--muted-2);margin-top:5px;}
.ind-card p{font-size:12.5px;line-height:1.85;color:var(--muted);margin-top:12px;flex:1;}
.ind-card .link{font-size:12px;color:var(--dark);font-weight:600;display:inline-flex;align-items:center;gap:6px;margin-top:14px;}

/* ---------- 优势页 ---------- */
.adv-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;}
.adv-card{background:#fff;border:1px solid var(--line);border-radius:20px;padding:30px 26px;transition:all .28s var(--ease);}
.adv-card:hover{transform:translateY(-5px);box-shadow:var(--shadow);}
.adv-card .ico{width:46px;height:46px;border-radius:14px;background:linear-gradient(135deg,var(--mint),var(--mint-3));color:var(--dark);display:flex;align-items:center;justify-content:center;}
.adv-card h3{font-size:17px;font-weight:800;margin-top:18px;}
.adv-card p{font-size:12.8px;line-height:1.85;color:var(--muted);margin-top:9px;}
.timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:10px;}
.tl-item{position:relative;padding:24px 22px;border-radius:18px;background:#fff;border:1px solid var(--line);}
.tl-item .no{font-size:11px;font-weight:800;color:var(--green);letter-spacing:1.5px;}
.tl-item h4{font-size:15px;font-weight:700;margin-top:10px;}
.tl-item p{font-size:12.5px;line-height:1.8;color:var(--muted);margin-top:8px;}

/* ---------- 科普页 ---------- */
.season{display:grid;grid-template-columns:repeat(12,1fr);gap:4px;margin-top:6px;}
.season .m{text-align:center;font-size:10px;color:var(--muted-2);padding:6px 0;}
.season-bar{display:grid;grid-template-columns:repeat(12,1fr);gap:4px;margin-top:6px;}
.season-cell{height:26px;border-radius:7px;background:var(--mint);}
.season-cell.mid{background:rgba(0,107,211,.32);}
.season-cell.high{background:var(--green);}
.season-row{display:grid;grid-template-columns:120px 1fr;gap:16px;align-items:center;margin-bottom:12px;}
.season-row .name{font-size:12.5px;color:var(--ink-2);font-weight:600;}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .8s var(--ease),transform .8s var(--ease);}
.reveal.in{opacity:1;transform:none;}
.reveal.d1{transition-delay:.08s;}
.reveal.d2{transition-delay:.16s;}
.reveal.d3{transition-delay:.24s;}
.reveal.d4{transition-delay:.32s;}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;}
  .reveal{opacity:1;transform:none;}
  .hero-slide .hero-kicker,.hero-slide .hero-copy h1,.hero-slide .hero-copy p,
  .hero-slide .hero-actions,.hero-slide .hero-facts,.hero-slide .guard-badge{opacity:1;transform:none;}
}

/* ---------- 响应式 ---------- */
@media (max-width:1180px){
  .guard-grid{grid-template-columns:repeat(3,1fr);}
  .svc-grid{grid-template-columns:repeat(2,1fr);}
  .ind-grid{grid-template-columns:repeat(3,1fr);}
  .span2,.span3{grid-column:span 1;}
  .pest-grid{grid-template-columns:repeat(2,1fr);}
  .ind-cards,.adv-grid{grid-template-columns:repeat(2,1fr);}
  .svc-layout{grid-template-columns:200px 1fr;gap:30px;}
  .svc-block,.svc-block:nth-of-type(even){grid-template-columns:1fr;gap:18px;}
  .svc-block:nth-of-type(even) .svc-media{order:0;}
  .svc-media img{height:240px;}
  .timeline{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:900px){
  :root{--nav-h:64px;}
  .nav-toggle{display:flex;}
  .nav{position:fixed;top:var(--nav-h);left:0;right:0;background:rgba(251,253,255,.98);backdrop-filter:blur(16px);flex-direction:column;align-items:stretch;padding:14px 20px 22px;gap:4px;border-bottom:1px solid var(--line);box-shadow:0 20px 40px rgba(11,58,110,.12);transform:translateY(-12px);opacity:0;pointer-events:none;transition:all .25s var(--ease);}
  .nav.open{transform:none;opacity:1;pointer-events:auto;}
  .nav a{padding:12px 14px;}
  .nav .nav-login{margin:8px 0 0;justify-content:center;text-align:center;}
  /* 手机端首屏：上图下文，图片不再被文字遮盖 */
  .hero{height:auto;min-height:0;}
  .hero-slide{position:relative;inset:auto;height:0;overflow:hidden;}
  .hero-slide.active{height:auto;}
  .hero-img{position:relative;height:38svh;min-height:230px;max-height:340px;object-position:70% 22%;}
  .hero-scrim{inset:auto;top:0;left:0;right:0;height:calc(38svh + 1px);min-height:231px;max-height:341px;background:linear-gradient(180deg,rgba(248,251,255,.14) 0%,rgba(248,251,255,0) 50%,rgba(248,251,255,.72) 86%,#F8FBFF 100%);}
  .hero-content{height:auto;display:block;padding-top:24px;padding-bottom:104px;}
  .hero-copy{max-width:100%;padding-bottom:0;}
  .guard-badge{display:none;}
  .hero-ui{bottom:18px;}
  .trust-strip{margin-top:-30px;}
  .trust-inner{grid-template-columns:1fr 1fr;}
  .feature,.feature.rev{grid-template-columns:1fr;gap:28px;}
  .feature-img img{height:340px;}
  .section{padding:64px 0;}
  .svc-layout{grid-template-columns:1fr;}
  .svc-side{position:static;display:flex;overflow-x:auto;gap:6px;padding:10px;}
  .svc-side a{white-space:nowrap;padding:8px 12px;}
  .svc-side a .no{display:none;}
  .ind-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
  /* 手机端内页首屏：全屏浅色遮罩，文字清晰、图片隐约透出 */
  .page-hero.with-img{min-height:0;padding:calc(var(--nav-h) + 42px) 0 48px;}
  .page-hero.with-img .bg{object-position:72% 30%;}
  .page-hero.with-img.bright::before{background:linear-gradient(180deg,rgba(247,251,255,.95) 0%,rgba(247,251,255,.87) 55%,rgba(247,251,255,.96) 100%);}
  .page-hero-art{display:none;}
}
@media (max-width:640px){
  .container{padding-left:16px;padding-right:16px;}
  .brand-text{display:none;}
  .brand-mark{width:38px;height:38px;border-radius:11px;}
  .brand-mark img{width:27px;height:27px;}
  .brand-reg{font-size:12.5px;right:-4px;top:-5px;}
  .hero h1{font-size:34px;}
  .hero-copy p{font-size:13.5px;}
  .hero-actions .btn{height:46px;padding:0 20px;font-size:13.5px;}
  .hero-facts{gap:14px;font-size:11.5px;}
  .hero-dots{gap:6px;}
  .hero-dot{font-size:11px;padding:7px 10px;gap:6px;}
  .hero-dot.active i{width:20px;}
  .hero-arrow{width:44px;height:44px;}
  .hero-arrow .icon{width:18px;height:18px;}
  .guard-grid,.svc-grid,.pest-grid,.ind-cards,.adv-grid,.timeline,.idea-steps{grid-template-columns:1fr;}
  .ind-grid{grid-template-columns:1fr 1fr;}
  .ind-item{min-height:124px;padding:18px 16px;}
  .ind-item h3{font-size:15px;}
  .trust-inner{grid-template-columns:1fr;}
  .sec-head{margin-bottom:28px;}
  .sec-head h2{font-size:25px;}
  .check-list{grid-template-columns:1fr;}
  .feature-img img{height:280px;}
  .cta{padding:32px 22px;border-radius:20px;}
  .cta h2{font-size:22px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;gap:6px;}
  .season-row{grid-template-columns:84px 1fr;gap:10px;}
  .svc-points{grid-template-columns:1fr;}
  .svc-media img{height:200px;}
  .svc-thumb{height:96px;}
}

/* ---------- 8 项导航在中等屏宽的压缩 ---------- */
@media (max-width:1180px) and (min-width:901px){
  .nav-wrap{gap:16px;}
  .nav{gap:0;}
  .nav a{padding:8px 9px;font-size:13px;}
  .nav .nav-login{padding:8px 12px;margin-left:6px;}
}

/* ============================================================
   IPM 页 / 行业详情页
   ============================================================ */

/* 三代对照 */
.cmp{display:grid;gap:1px;background:var(--line);border:1px solid var(--line);border-radius:20px;overflow:hidden;box-shadow:var(--shadow-sm);}
.cmp-r{display:grid;grid-template-columns:150px 1fr 1.15fr 1fr;gap:1px;background:var(--line);}
.cmp-r>div{background:#fff;padding:18px 20px;font-size:12.5px;line-height:1.85;color:var(--muted);}
.cmp-r .dim{background:var(--mint-2);font-weight:700;color:var(--ink);letter-spacing:.5px;}
.cmp-r.cmp-h>div{background:var(--mint-2);font-size:13px;font-weight:800;color:var(--ink);letter-spacing:.8px;padding:20px;}
.cmp-r .hl{background:#F1F8FF;color:var(--ink-2);}
.cmp-r.cmp-h .hl{background:linear-gradient(135deg,var(--forest),var(--deep));color:#fff;}
.m-lb{display:none;}

/* 五层落地 */
.layers{display:grid;gap:10px;}
.layer{display:grid;grid-template-columns:56px 150px 1fr;gap:22px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px 26px;transition:all .26s var(--ease);}
.layer:hover{border-color:var(--line-2);box-shadow:var(--shadow-sm);transform:translateX(4px);}
.layer .no{font-size:11px;font-weight:800;letter-spacing:1.4px;color:var(--green);}
.layer h3{font-size:16.5px;font-weight:800;color:var(--ink);line-height:1.4;}
.layer h3 span{display:block;font-size:10px;letter-spacing:1.8px;color:var(--muted-2);margin-top:4px;font-weight:600;}
.layer p{font-size:12.8px;line-height:1.85;color:var(--muted);}

/* 风险卡 */
.risk-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.risk-card{position:relative;background:#fff;border:1px solid var(--line);border-radius:18px;padding:26px 24px 24px;transition:all .26s var(--ease);}
.risk-card::before{content:"";position:absolute;left:24px;right:24px;top:0;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--green),transparent);opacity:0;transition:opacity .26s;}
.risk-card:hover{box-shadow:var(--shadow-sm);border-color:var(--line-2);}
.risk-card:hover::before{opacity:1;}
.risk-card .row{display:flex;align-items:center;gap:12px;}
.risk-card .ico{width:40px;height:40px;border-radius:12px;background:var(--mint);color:var(--dark);display:flex;align-items:center;justify-content:center;flex-shrink:0;}
.risk-card h3{font-size:16px;font-weight:800;color:var(--ink);}
.risk-card p{font-size:12.6px;line-height:1.85;color:var(--muted);margin-top:12px;}

/* 风险分区示意图 */
.zmap{border:1px dashed var(--line-2);border-radius:22px;padding:26px;background:
  radial-gradient(420px 260px at 88% 4%,rgba(143,211,248,.20),transparent 70%),
  linear-gradient(160deg,#F7FBFF,#EFF7FE);}
.zmap-head{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:18px;flex-wrap:wrap;}
.zmap-head .t{font-size:11px;letter-spacing:2px;font-weight:700;color:var(--deep);}
.zmap-legend{display:flex;gap:14px;font-size:11px;color:var(--muted-2);}
.zmap-legend i{display:inline-block;width:8px;height:8px;border-radius:3px;margin-right:5px;vertical-align:0;}
.zmap-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;}
.zmap-zone{background:#fff;border:1px solid var(--line);border-radius:14px;padding:14px 16px;position:relative;}
.zmap-zone b{display:block;font-size:13.5px;color:var(--ink);letter-spacing:.3px;padding-right:34px;}
.zmap-zone span{display:block;font-size:11px;color:var(--muted-2);margin-top:5px;}
.zmap-zone .lv{position:absolute;right:12px;top:12px;font-size:10px;font-weight:700;padding:2px 8px;border-radius:9px;}
.lv-h{background:rgba(230,74,74,.1);color:#C43B3B;}
.lv-m{background:rgba(240,160,40,.12);color:#B87813;}
.lv-l{background:var(--mint);color:var(--dark);}
.zmap-note{font-size:11.5px;color:var(--muted-2);margin-top:16px;line-height:1.8;}
.zmap.two .zmap-grid{grid-template-columns:1fr 1fr;}

/* 四步流程 */
.flow.four{grid-template-columns:repeat(4,1fr);}
.flow.four::before{left:8%;right:8%;}
.flow.four .flow-line{left:8%;}
.flow.four.in .flow-line{width:84%;}

/* 相邻行业 */
.ind-next{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.ind-next a{display:flex;align-items:center;justify-content:space-between;gap:16px;background:#fff;border:1px solid var(--line);border-radius:18px;padding:22px 26px;transition:all .26s var(--ease);}
.ind-next a:hover{border-color:var(--green);box-shadow:var(--shadow-sm);transform:translateY(-2px);}
.ind-next .k{font-size:10px;letter-spacing:1.8px;color:var(--muted-2);font-weight:700;}
.ind-next b{display:block;font-size:16px;color:var(--ink);margin-top:5px;font-weight:800;}
.ind-next .icon{width:18px;height:18px;color:var(--green);flex-shrink:0;}

.note-line{font-size:12px;color:var(--muted-2);line-height:1.9;margin-top:20px;}

@media (max-width:1180px){
  .cmp-r{grid-template-columns:130px 1fr 1.1fr 1fr;}
  .layer{grid-template-columns:48px 130px 1fr;gap:16px;}
}
@media (max-width:900px){
  .cmp{background:none;border:0;box-shadow:none;gap:14px;}
  .cmp-r{grid-template-columns:1fr;gap:0;background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden;}
  .cmp-r.cmp-h{display:none;}
  .cmp-r>div{border-bottom:1px solid var(--line);}
  .cmp-r>div:last-child{border-bottom:0;}
  .cmp-r .dim{background:var(--mint-2);}
  .m-lb{display:block;font-size:10px;letter-spacing:1.4px;color:var(--muted-2);font-weight:700;margin-bottom:5px;}
  .layer{grid-template-columns:1fr;gap:8px;}
  .risk-grid{grid-template-columns:1fr;}
  .zmap-grid{grid-template-columns:1fr 1fr;}
  .flow.four{grid-template-columns:1fr 1fr;}
  .flow.four::before,.flow.four .flow-line{display:none;}
  .ind-next{grid-template-columns:1fr;}
}
@media (max-width:640px){
  .zmap-grid{grid-template-columns:1fr;}
  .flow.four{grid-template-columns:1fr;}
  .zmap{padding:18px;}
}

/* ============================================================
   导航下拉（悬停展开子栏目）
   ============================================================ */
.nav-item{position:relative;display:flex;align-items:center;}
.nav-item::after{content:"";position:absolute;left:-14px;right:-14px;top:100%;height:18px;}
.nav-item .nav-parent{display:inline-flex;align-items:center;gap:6px;}
.nav-item .nav-parent::after{content:"";width:0;height:0;border-left:3.5px solid transparent;border-right:3.5px solid transparent;border-top:4.5px solid currentColor;opacity:.5;transition:transform .22s var(--ease),opacity .22s;}
.nav-item:hover .nav-parent::after{transform:rotate(180deg);opacity:.95;}

.nav-sub{
  position:absolute;top:calc(100% + 12px);left:50%;
  transform:translate(-50%,8px);
  min-width:264px;padding:10px;
  background:#fff;border:1px solid var(--line);border-radius:16px;
  box-shadow:0 22px 50px rgba(11,58,110,.16);
  display:grid;gap:2px;
  opacity:0;visibility:hidden;pointer-events:none;
  transition:opacity .2s var(--ease),transform .2s var(--ease),visibility .2s;
  z-index:70;max-width:calc(100vw - 36px);
  max-height:min(72vh,560px);overflow:auto;
}
.nav-item:hover .nav-sub,
.nav-item:focus-within .nav-sub{opacity:1;visibility:visible;pointer-events:auto;transform:translate(-50%,0);}

.nav-sub a{display:flex;flex-direction:column;gap:2px;padding:9px 12px;border-radius:10px;font-size:13px;color:var(--ink);white-space:nowrap;line-height:1.35;transition:background .18s,color .18s;}
.nav-sub a:hover{background:var(--mint-2);color:var(--dark);}
.nav-sub a b{font-weight:600;letter-spacing:.2px;}
.nav-sub a span{font-size:10px;color:var(--muted-2);letter-spacing:.5px;}
.nav-sub.cols-2{grid-template-columns:1fr 1fr;min-width:420px;}
.nav-sub.cols-3{grid-template-columns:1fr 1fr 1fr;min-width:600px;}

@media (max-width:1180px) and (min-width:901px){
  .nav-sub.cols-3{min-width:520px;}
}
@media (max-width:900px){
  .nav-item{display:block;width:100%;}
  .nav-item::after{display:none;}
  .nav-item .nav-parent::after{display:none;}
  .nav-sub{
    position:static;transform:none;opacity:1;visibility:visible;pointer-events:auto;
    min-width:0;max-width:none;max-height:none;overflow:visible;
    display:grid;grid-template-columns:1fr;gap:0;
    background:none;border:0;border-left:1px solid var(--line);border-radius:0;
    box-shadow:none;margin:0 0 6px 16px;padding:0 0 0 6px;
  }
  .nav-sub.cols-2,.nav-sub.cols-3{grid-template-columns:1fr 1fr;min-width:0;}
  .nav-sub a{padding:9px 10px;font-size:12.5px;}
  .nav-sub a span{display:none;}
  .nav.open{max-height:calc(100vh - var(--nav-h));overflow-y:auto;}
}

/* ============================================================
   行业方案 · 图片卡网格（首页）
   ============================================================ */
.ind-tiles{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.ind-tile{position:relative;display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden;transition:all .28s var(--ease);}
.ind-tile:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:var(--line-2);}
.ind-tile .ph{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--mint);}
.ind-tile .ph img{width:100%;height:100%;object-fit:cover;transition:transform .6s var(--ease);}
.ind-tile:hover .ph img{transform:scale(1.05);}
.ind-tile .no{position:absolute;left:11px;top:11px;font-size:10px;font-weight:700;letter-spacing:1px;color:#fff;background:rgba(7,44,85,.52);backdrop-filter:blur(4px);padding:3px 8px;border-radius:8px;}
.ind-tile .body{padding:15px 17px 17px;}
.ind-tile h3{font-size:16px;font-weight:800;color:var(--ink);letter-spacing:.3px;}
.ind-tile .body span{display:block;font-size:11.5px;color:var(--muted-2);margin-top:5px;letter-spacing:.3px;}
.ind-tile.all{justify-content:center;padding:24px 22px;border:0;color:#fff;
  background:radial-gradient(420px 260px at 85% 10%,rgba(143,211,248,.28),transparent 65%),linear-gradient(135deg,var(--forest),var(--deep) 62%,var(--green));}
.ind-tile.all .k{font-size:10px;letter-spacing:2px;font-weight:700;color:rgba(255,255,255,.65);}
.ind-tile.all h3{color:#fff;font-size:18px;margin-top:10px;line-height:1.4;}
.ind-tile.all span{display:block;font-size:11.5px;color:rgba(255,255,255,.72);margin-top:8px;line-height:1.7;}
.ind-tile.all .icon{width:20px;height:20px;color:#fff;margin-top:18px;}
@media (max-width:1180px){.ind-tiles{grid-template-columns:repeat(3,1fr);}}
@media (max-width:900px){.ind-tiles{grid-template-columns:repeat(2,1fr);gap:14px;}}
@media (max-width:520px){.ind-tiles{grid-template-columns:1fr;}}