/* ============================================================
   鸿硕（山东）环保设备集团 — 官网样式
   色系：生态工业蓝 #0E549E / 生态绿 #5AC441 / 橙 #FF840C
   ============================================================ */
:root{
  --blue:#0E549E;
  --blue-dark:#0A3D73;
  --blue-deep:#0B2B4E;
  --green:#5AC441;
  --green-dark:#3FA32B;
  --orange:#FF840C;
  --red:#D10505;
  --ink:#1D2B3A;
  --muted:#5B6B7C;
  --bg:#F5F8FB;
  --bg-soft:#EDF3F8;
  --line:#E3EAF2;
  --white:#FFFFFF;
  --shadow-sm:0 2px 10px rgba(13,43,74,.08);
  --shadow-md:0 10px 30px rgba(13,43,74,.12);
  --shadow-lg:0 24px 60px rgba(13,43,74,.18);
  --radius:14px;
  --container:1200px;
  --header-h:76px;
  --font:"PingFang SC","Microsoft YaHei","Helvetica Neue","Segoe UI",Arial,sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--font);color:var(--ink);background:var(--white);line-height:1.7;font-size:16px;overflow-x:hidden}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .25s}
ul{list-style:none}
button{font-family:inherit;cursor:pointer;border:none;background:none}
input,textarea,select{font-family:inherit;font-size:15px;outline:none}
.container{max-width:var(--container);margin:0 auto;padding:0 24px}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--blue-deep);color:#BFD4E8;font-size:13px;height:36px;display:flex;align-items:center;position:relative;z-index:60}
.topbar .container{display:flex;justify-content:space-between;align-items:center;width:100%}
.topbar a{color:#fff}
.topbar a:hover{color:var(--green)}
.topbar .slogan{letter-spacing:1px}
.topbar .hotline strong{color:var(--green);font-size:15px;margin-left:6px}

/* ---------- 主导航 ---------- */
.header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.96);backdrop-filter:blur(10px);box-shadow:var(--shadow-sm);transition:box-shadow .3s}
.header.scrolled{box-shadow:0 6px 24px rgba(13,43,74,.15)}
.header .container{display:flex;align-items:center;justify-content:space-between;height:var(--header-h)}
.logo{display:flex;align-items:center;gap:12px}
.logo .mark{width:46px;height:46px;flex:none;object-fit:contain}
.logo .name{font-size:22px;font-weight:700;color:var(--blue-dark);letter-spacing:2px;line-height:1.2}
.logo .sub{font-size:10.5px;color:var(--muted);letter-spacing:1.6px;text-transform:uppercase}
.nav{display:flex;align-items:center;gap:4px}
.nav > li{position:relative}
.nav > li > a{display:block;padding:10px 12px;font-size:15.5px;font-weight:600;color:var(--ink);border-radius:8px;position:relative;white-space:nowrap}
.nav > li > a::after{content:"";position:absolute;left:12px;right:12px;bottom:4px;height:3px;border-radius:2px;background:var(--green);transform:scaleX(0);transition:transform .25s;transform-origin:center}
.nav > li > a:hover{color:var(--blue)}
.nav > li:hover > a::after,.nav > li.active > a::after{transform:scaleX(1)}
.nav > li.active > a{color:var(--blue)}
/* 下拉 */
.dropdown{position:absolute;top:100%;left:0;min-width:230px;background:#fff;border-radius:12px;box-shadow:var(--shadow-lg);padding:10px 0;opacity:0;visibility:hidden;transform:translateY(12px);transition:all .28s;z-index:99}
.nav > li:hover .dropdown{opacity:1;visibility:visible;transform:translateY(4px)}
.dropdown a{display:flex;align-items:center;gap:10px;padding:10px 20px;font-size:15px;color:var(--ink)}
.dropdown a:hover{background:var(--bg-soft);color:var(--blue);padding-left:24px}
.dropdown a .dot{width:6px;height:6px;border-radius:50%;background:var(--green);flex:none}
.header-cta{display:flex;align-items:center;gap:10px}
.header-cta .phone-num{font-size:20px;font-weight:700;color:var(--orange);line-height:1.1;white-space:nowrap}
.header-cta .phone-label{font-size:12px;color:var(--muted)}
.burger{display:none;flex-direction:column;gap:5px;padding:8px}
.burger span{width:26px;height:3px;background:var(--blue-dark);border-radius:2px;transition:.3s}

/* ---------- Hero ---------- */
.hero{position:relative;height:min(88vh,760px);min-height:560px;overflow:hidden;background:var(--blue-deep)}
.hero .slide{position:absolute;inset:0;opacity:0;transition:opacity 1.2s ease;background-size:cover;background-position:center}
.hero .slide.active{opacity:1}
.hero .slide::after{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(7,31,58,.88) 0%,rgba(9,45,84,.72) 45%,rgba(10,61,115,.28) 100%)}
.hero .slide .zoom{position:absolute;inset:0;background-size:cover;background-position:center;animation:kenburns 12s ease-out forwards}
@keyframes kenburns{from{transform:scale(1.08)}to{transform:scale(1)}}
.hero-content{position:relative;z-index:5;height:100%;display:flex;flex-direction:column;justify-content:center;color:#fff}
.hero-tag{display:inline-flex;align-items:center;gap:8px;background:rgba(90,196,65,.16);border:1px solid rgba(90,196,65,.55);color:#B9EEAC;padding:7px 16px;border-radius:100px;font-size:14px;letter-spacing:2px;width:fit-content;margin-bottom:22px}
.hero h1{font-size:clamp(30px,4.6vw,54px);line-height:1.25;font-weight:800;letter-spacing:2px;max-width:760px}
.hero h1 em{font-style:normal;color:var(--green)}
.hero p.lead{margin-top:18px;font-size:clamp(15px,1.5vw,19px);color:rgba(255,255,255,.85);max-width:640px;letter-spacing:1px}
.hero-btns{margin-top:34px;display:flex;gap:16px;flex-wrap:wrap}
.hero-dots{position:absolute;bottom:110px;left:50%;transform:translateX(-50%);display:flex;gap:10px;z-index:6}
.hero-dots button{width:34px;height:4px;border-radius:2px;background:rgba(255,255,255,.35)}
.hero-dots button.active{background:var(--green)}

/* ---------- 数据条 ---------- */
.stats-band{position:relative;z-index:10;margin-top:-72px}
.stats-band .grid{display:grid;grid-template-columns:repeat(4,1fr);background:#fff;border-radius:16px;box-shadow:var(--shadow-md);overflow:hidden}
.stat{padding:30px 20px;text-align:center;position:relative}
.stat + .stat::before{content:"";position:absolute;left:0;top:25%;bottom:25%;width:1px;background:var(--line)}
.stat .num{font-size:42px;font-weight:800;color:var(--blue);line-height:1.1}
.stat .num span{font-size:20px;color:var(--orange);margin-left:2px}
.stat .label{color:var(--muted);font-size:14px;margin-top:6px;letter-spacing:1px}

/* ---------- 区块通用 ---------- */
.section{padding:88px 0}
.section.alt{background:var(--bg)}
.section-head{text-align:center;max-width:720px;margin:0 auto 56px}
.section-head .kicker{display:inline-block;color:var(--green-dark);font-weight:700;letter-spacing:4px;font-size:14px;text-transform:uppercase;margin-bottom:12px}
.section-head h2{font-size:clamp(26px,3vw,38px);font-weight:800;color:var(--blue-deep);letter-spacing:1px;line-height:1.3}
.section-head .bar{width:64px;height:4px;border-radius:2px;background:linear-gradient(90deg,var(--green),var(--blue));margin:18px auto 0}
.section-head p{color:var(--muted);margin-top:16px}
.section-head.left{text-align:left;margin-left:0}
.section-head.left .bar{margin-left:0}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 34px;border-radius:100px;font-size:16px;font-weight:700;letter-spacing:1px;transition:.3s;white-space:nowrap}
.btn svg{width:18px;height:18px}
.btn-primary{background:var(--blue);color:#fff;box-shadow:0 8px 24px rgba(14,84,158,.35)}
.btn-primary:hover{background:var(--blue-dark);transform:translateY(-2px)}
.btn-green{background:var(--green);color:#fff;box-shadow:0 8px 24px rgba(90,196,65,.4)}
.btn-green:hover{background:var(--green-dark);transform:translateY(-2px)}
.btn-orange{background:var(--orange);color:#fff;box-shadow:0 8px 24px rgba(255,132,12,.4)}
.btn-orange:hover{filter:brightness(1.08);transform:translateY(-2px)}
.btn-ghost{border:2px solid rgba(255,255,255,.7);color:#fff}
.btn-ghost:hover{background:#fff;color:var(--blue)}
.btn-line{border:2px solid var(--blue);color:var(--blue)}
.btn-line:hover{background:var(--blue);color:#fff}

/* ---------- 产品分类卡 ---------- */
.cat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.cat-card{position:relative;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm);transition:.35s;background:#fff;height:340px;display:block}
.cat-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg)}
.cat-card .pic{position:absolute;inset:0;background-size:cover;background-position:center;transition:transform .6s}
.cat-card:hover .pic{transform:scale(1.07)}
.cat-card .veil{position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,43,78,0) 30%,rgba(11,43,78,.92) 100%)}
.cat-card .txt{position:absolute;left:0;right:0;bottom:0;padding:26px;color:#fff}
.cat-card .txt .no{font-size:13px;letter-spacing:3px;color:var(--green);font-weight:700}
.cat-card .txt h3{font-size:22px;margin:6px 0 8px;letter-spacing:1px}
.cat-card .txt p{font-size:13.5px;color:rgba(255,255,255,.78);line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.cat-card .more{display:inline-flex;align-items:center;gap:6px;color:var(--green);font-size:14px;font-weight:600;margin-top:12px}
.cat-card.nopic{background:linear-gradient(135deg,var(--blue) 0%,var(--blue-deep) 100%)}
.cat-card.nopic .veil{background:radial-gradient(circle at 80% 20%,rgba(90,196,65,.25),transparent 55%)}
.cat-card.nopic .icon{position:absolute;top:34px;right:30px;width:84px;height:84px;opacity:.9}

/* ---------- 产品卡 ---------- */
.prod-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.prod-card{background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm);transition:.3s;display:flex;flex-direction:column;border:1px solid var(--line)}
a.prod-card{text-decoration:none;color:inherit}
.prod-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-md);border-color:transparent}
.prod-card .pic{height:210px;overflow:hidden;background:var(--bg-soft)}
.prod-card .pic img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.prod-card:hover .pic img{transform:scale(1.08)}
.prod-card .pic.empty{display:flex;align-items:center;justify-content:center;color:var(--blue)}
.prod-card .pic.empty svg{width:64px;height:64px;opacity:.45}
.prod-card .body{padding:18px 20px 20px;flex:1;display:flex;flex-direction:column}
.prod-card .body h3{font-size:17px;font-weight:700;color:var(--blue-deep);line-height:1.4}
.prod-card .body h3 a:hover{color:var(--blue)}
.prod-card .body p{font-size:13.5px;color:var(--muted);margin-top:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;flex:1}
.prod-card .body .link{margin-top:14px;font-size:14px;color:var(--green-dark);font-weight:600;display:inline-flex;align-items:center;gap:6px}
.prod-card .body .link svg{width:15px;height:15px;transition:transform .3s}
.prod-card:hover .body .link svg{transform:translateX(4px)}

/* ---------- 优势 ---------- */
.adv-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.adv{background:#fff;border-radius:var(--radius);padding:34px 26px;box-shadow:var(--shadow-sm);border-top:4px solid transparent;transition:.3s;position:relative;overflow:hidden}
.adv:hover{border-top-color:var(--green);transform:translateY(-6px);box-shadow:var(--shadow-md)}
.adv .ic{width:60px;height:60px;border-radius:16px;background:linear-gradient(135deg,rgba(14,84,158,.12),rgba(90,196,65,.18));display:flex;align-items:center;justify-content:center;margin-bottom:20px}
.adv .ic svg{width:30px;height:30px}
.adv h3{font-size:18px;color:var(--blue-deep);margin-bottom:10px}
.adv p{font-size:14px;color:var(--muted);line-height:1.75}

/* ---------- 案例 ---------- */
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.case-card{position:relative;border-radius:var(--radius);overflow:hidden;height:280px;box-shadow:var(--shadow-sm)}
.case-card .pic{position:absolute;inset:0;background-size:cover;background-position:center;transition:transform .6s}
.case-card:hover .pic{transform:scale(1.08)}
.case-card .veil{position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,43,78,.05) 35%,rgba(11,43,78,.92))}
.case-card .txt{position:absolute;left:0;right:0;bottom:0;padding:22px;color:#fff;transform:translateY(46px);transition:.35s}
.case-card:hover .txt{transform:translateY(0)}
.case-card .txt .tag{display:inline-block;background:var(--green);color:#fff;font-size:12px;padding:3px 12px;border-radius:100px;letter-spacing:1px}
.case-card .txt h3{font-size:18px;margin-top:10px;line-height:1.4}
.case-card .txt p{font-size:13px;color:rgba(255,255,255,.75);margin-top:6px}

/* ---------- 新闻 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.news-card{background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm);border:1px solid var(--line);transition:.3s;display:flex;flex-direction:column}
a.news-card{text-decoration:none;color:inherit}
.news-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-md)}
.news-card .pic{height:190px;overflow:hidden;background:var(--bg-soft)}
.news-card .pic img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.news-card:hover .pic img{transform:scale(1.07)}
.news-card .pic.empty{display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--blue-soft,#E8F1FA),var(--bg-soft))}
.news-card .pic.empty svg{width:56px;height:56px;color:var(--blue);opacity:.4}
.news-card .body{padding:22px 24px 24px;flex:1;display:flex;flex-direction:column}
.news-card .meta{display:flex;gap:16px;font-size:12.5px;color:#94A6B8}
.news-card .meta .cat{color:var(--green-dark);font-weight:600}
.news-card h3{font-size:17px;line-height:1.5;margin-top:10px;color:var(--blue-deep);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card h3 a:hover{color:var(--blue)}
.news-card p{font-size:13.5px;color:var(--muted);margin-top:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;flex:1}
.news-card .more{margin-top:16px;font-size:14px;color:var(--green-dark);font-weight:600}

/* ---------- 关于/简介并排 ---------- */
.split{display:grid;grid-template-columns:1.05fr 1fr;gap:56px;align-items:center}
.split .pics{position:relative}
.split .pics .main{border-radius:var(--radius);box-shadow:var(--shadow-md);height:420px;width:100%;object-fit:cover}
.split .pics .badge{position:absolute;left:-24px;bottom:-24px;background:var(--blue);color:#fff;border-radius:var(--radius);padding:22px 28px;box-shadow:var(--shadow-lg);text-align:center}
.split .pics .badge .num{font-size:34px;font-weight:800;color:var(--green)}
.split .pics .badge .lb{font-size:13px;letter-spacing:2px;opacity:.85}
.split .txt p{color:var(--muted);margin-top:14px;text-align:justify}
.split .points{margin-top:22px;display:grid;gap:12px}
.split .points li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:var(--ink)}
.split .points li svg{width:20px;height:20px;color:var(--green);flex:none;margin-top:4px}

/* ---------- 文化 ---------- */
.culture-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.culture{background:#fff;border-radius:var(--radius);padding:36px 30px;text-align:center;box-shadow:var(--shadow-sm);transition:.3s}
.culture:hover{transform:translateY(-6px);box-shadow:var(--shadow-md)}
.culture .zh{font-size:40px;font-weight:800;background:linear-gradient(120deg,var(--blue),var(--green));-webkit-background-clip:text;background-clip:text;color:transparent}
.culture h3{font-size:20px;color:var(--blue-deep);margin:10px 0 12px;letter-spacing:2px}
.culture p{font-size:14px;color:var(--muted)}

/* ---------- 流程 ---------- */
.flow-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:18px;counter-reset:step}
.flow{background:#fff;border-radius:var(--radius);padding:30px 20px;text-align:center;box-shadow:var(--shadow-sm);position:relative;transition:.3s}
.flow:hover{transform:translateY(-6px);box-shadow:var(--shadow-md)}
.flow .step{width:44px;height:44px;border-radius:50%;background:linear-gradient(135deg,var(--blue),var(--green));color:#fff;font-weight:800;font-size:18px;display:flex;align-items:center;justify-content:center;margin:0 auto 16px}
.flow h3{font-size:16px;color:var(--blue-deep)}
.flow p{font-size:13px;color:var(--muted);margin-top:8px}

/* ---------- CTA 横幅 ---------- */
.cta-band{background:linear-gradient(110deg,var(--blue-dark),var(--blue) 55%,#2E7D32);border-radius:20px;color:#fff;padding:54px 56px;display:flex;align-items:center;justify-content:space-between;gap:30px;position:relative;overflow:hidden}
.cta-band::before{content:"";position:absolute;right:-80px;top:-80px;width:300px;height:300px;border-radius:50%;background:rgba(90,196,65,.18)}
.cta-band::after{content:"";position:absolute;right:60px;bottom:-120px;width:220px;height:220px;border-radius:50%;background:rgba(255,255,255,.08)}
.cta-band h2{font-size:clamp(22px,2.6vw,32px);letter-spacing:1px}
.cta-band p{margin-top:10px;color:rgba(255,255,255,.85)}
.cta-band .phone-big{font-size:34px;font-weight:800;color:var(--green);letter-spacing:1px}
.cta-band .acts{display:flex;gap:14px;flex-wrap:wrap;position:relative;z-index:2}

/* ---------- 页头横幅（子页） ---------- */
.page-banner{position:relative;background:var(--blue-deep);color:#fff;padding:96px 0 84px;overflow:hidden}
.page-banner .bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.35}
.page-banner::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(7,31,58,.92),rgba(10,61,115,.55))}
.page-banner .container{position:relative;z-index:2}
.page-banner h1{font-size:clamp(26px,3.4vw,40px);letter-spacing:2px}
.page-banner .crumb{margin-top:14px;font-size:14px;color:rgba(255,255,255,.75)}
.page-banner .crumb a{color:#B9EEAC}
.page-banner .crumb a:hover{color:#fff}

/* ---------- 面包屑+布局（内页） ---------- */
.breadcrumb{padding:20px 0;font-size:13.5px;color:var(--muted)}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--blue)}
.breadcrumb b{color:var(--blue);font-weight:600}

/* ---------- 分类页 ---------- */
.cat-lead{display:grid;grid-template-columns:1.2fr .8fr;gap:50px;align-items:center;padding:40px 0 10px}
.cat-lead h2{font-size:clamp(22px,2.6vw,30px);color:var(--blue-deep)}
.cat-lead .en{color:#9DB2C4;letter-spacing:3px;font-size:13px;text-transform:uppercase;margin-bottom:10px}
.cat-lead p{color:var(--muted);margin-top:14px;text-align:justify}
.cat-lead .pic{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-md);height:300px}
.cat-lead .pic img{width:100%;height:100%;object-fit:cover}

/* ---------- 产品详情 ---------- */
.pd-layout{display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:start;padding:34px 0 8px}
.pd-gallery .main{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-md);height:440px;background:var(--bg-soft)}
.pd-gallery .main img{width:100%;height:100%;object-fit:cover}
.pd-gallery .main svg{width:96px;height:96px;opacity:.5}
.pd-thumbs{display:grid;grid-template-columns:repeat(5,1fr);gap:12px;margin-top:14px}
.pd-thumbs button{border-radius:10px;overflow:hidden;height:74px;border:2px solid transparent;padding:0;background:var(--bg-soft);transition:.25s}
.pd-thumbs button img{width:100%;height:100%;object-fit:cover}
.pd-thumbs button.on{border-color:var(--green)}
.pd-info h1{font-size:clamp(24px,2.6vw,32px);color:var(--blue-deep);line-height:1.35}
.pd-info .sub{color:#94A6B8;font-size:13px;letter-spacing:2px;text-transform:uppercase;margin-top:6px}
.pd-info .desc{color:var(--muted);margin-top:18px;text-align:justify}
.pd-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}
.pd-tags span{background:var(--bg-soft);color:var(--blue);font-size:13px;padding:6px 14px;border-radius:100px;font-weight:600}
.pd-cta{margin-top:28px;display:flex;gap:14px;flex-wrap:wrap;align-items:center}
.pd-cta .tel{font-size:24px;font-weight:800;color:var(--orange)}
.pd-sec{margin-top:60px}
.pd-sec h2{font-size:24px;color:var(--blue-deep);display:flex;align-items:center;gap:12px}
.pd-sec h2::before{content:"";width:6px;height:26px;border-radius:3px;background:linear-gradient(180deg,var(--green),var(--blue))}
.feat-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin-top:26px}
.feat{display:flex;gap:14px;background:var(--bg);border-radius:12px;padding:20px 22px;transition:.3s}
.feat:hover{background:var(--bg-soft)}
.feat .ic{width:42px;height:42px;flex:none;border-radius:12px;background:linear-gradient(135deg,var(--blue),var(--green));display:flex;align-items:center;justify-content:center;color:#fff}
.feat .ic svg{width:22px;height:22px}
.feat h3{font-size:16px;color:var(--blue-deep)}
.feat p{font-size:13.5px;color:var(--muted);margin-top:4px}
.param-table{width:100%;border-collapse:collapse;margin-top:26px;background:#fff;border-radius:12px;overflow:hidden;box-shadow:var(--shadow-sm)}
.param-table th,.param-table td{padding:14px 20px;text-align:left;font-size:14.5px;border-bottom:1px solid var(--line)}
.param-table th{background:var(--bg-soft);color:var(--blue-deep);width:220px;font-weight:600}
.param-table tr:last-child th,.param-table tr:last-child td{border-bottom:none}
.apps-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:26px}
.app{background:linear-gradient(135deg,var(--bg),var(--bg-soft));border-radius:12px;padding:22px 18px;text-align:center;font-weight:600;color:var(--blue-dark);transition:.3s}
.app:hover{background:var(--blue);color:#fff}

/* ---------- 文章页 ---------- */
.article{max-width:860px;margin:0 auto;background:#fff;border-radius:var(--radius);box-shadow:var(--shadow-sm);padding:48px 56px;margin-top:34px}
.article h1{font-size:clamp(22px,2.6vw,30px);color:var(--blue-deep);line-height:1.45}
.article .meta{display:flex;gap:18px;color:#94A6B8;font-size:13.5px;margin-top:16px;padding-bottom:22px;border-bottom:1px solid var(--line)}
.article .cover{border-radius:12px;overflow:hidden;margin:26px 0;max-height:420px}
.article .cover img{width:100%;object-fit:cover}
.article .content p{color:#3D4C5C;margin-top:18px;text-align:justify;font-size:15.5px}
.article .content h3{color:var(--blue-dark);margin-top:30px;font-size:19px;padding-left:12px;border-left:4px solid var(--green)}
.article .content ul{margin-top:14px;padding-left:6px}
.article .content ul li{position:relative;padding-left:22px;margin-top:10px;color:#3D4C5C}
.article .content ul li::before{content:"";position:absolute;left:0;top:11px;width:8px;height:8px;border-radius:2px;background:var(--green)}

/* ---------- 荣誉资质 ---------- */
.honor-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.honor{background:#fff;border-radius:var(--radius);padding:36px 28px;box-shadow:var(--shadow-sm);text-align:center;transition:.3s;border:1px solid var(--line)}
.honor:hover{transform:translateY(-6px);box-shadow:var(--shadow-md)}
.honor .frame{height:200px;border-radius:12px;background:linear-gradient(135deg,var(--bg),var(--bg-soft));display:flex;align-items:center;justify-content:center;color:var(--blue);margin-bottom:22px;border:1px dashed #B9C9D8}
.honor .frame svg{width:70px;height:70px;opacity:.5}
.honor h3{font-size:17px;color:var(--blue-deep)}
.honor p{font-size:13.5px;color:var(--muted);margin-top:8px}

/* 证书墙 */
.cert-count{background:var(--bg-soft);border:1px solid var(--line);border-radius:999px;padding:10px 22px;font-size:14px;color:var(--muted);white-space:nowrap}
.cert-count b{font-size:24px;color:var(--blue);margin-right:4px}
.cert-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.cert{margin:0;background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm);border:1px solid var(--line);transition:.3s}
.cert:hover{transform:translateY(-6px);box-shadow:var(--shadow-md);border-color:#C9D9E8}
.cert a{display:block;position:relative;background:linear-gradient(135deg,var(--bg),var(--bg-soft));border-bottom:1px solid var(--line)}
.cert img{width:100%;aspect-ratio:1536/1100;object-fit:cover;display:block}
.cert .zoom-ic{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;background:rgba(11,43,78,.42);opacity:0;transition:opacity .3s;color:#fff}
.cert .zoom-ic svg{width:40px;height:40px}
.cert a:hover .zoom-ic{opacity:1}
.cert figcaption{padding:16px 20px;text-align:center}
.cert figcaption b{display:block;font-size:15px;color:var(--blue-deep);font-weight:600}
.cert figcaption span{display:block;font-size:12.5px;color:var(--muted);margin-top:4px}
.cert-meta{text-align:center;color:var(--muted);font-size:13.5px;margin-top:24px;padding:12px 18px;background:var(--bg);border-radius:10px;border:1px dashed #C9D6E3}

/* 首页认证带 */
.cert-strip{display:grid;grid-template-columns:1fr 1.15fr;gap:44px;align-items:center;background:linear-gradient(135deg,var(--bg),var(--bg-soft));border:1px solid var(--line);border-radius:20px;padding:46px 48px}
.cert-strip .cs-txt p{margin:14px 0 22px;color:var(--muted)}
.cert-strip .cs-pics{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.cs-pic{display:block;border-radius:12px;overflow:hidden;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow-sm);transition:.3s}
.cs-pic img{width:100%;aspect-ratio:1536/1100;object-fit:cover;transition:transform .5s}
.cs-pic:hover{border-color:var(--green);box-shadow:var(--shadow-md)}
.cs-pic:hover img{transform:scale(1.06)}
.cs-pic:first-child{grid-column:span 2}
.cs-pic:nth-child(4){grid-column:span 2}

/* 灯箱 */
.lightbox{position:fixed;inset:0;z-index:200;background:rgba(6,20,36,.92);display:none;align-items:center;justify-content:center;padding:36px}
.lightbox.on{display:flex}
.lightbox img{max-width:min(1080px,94vw);max-height:88vh;border-radius:8px;box-shadow:0 30px 80px rgba(0,0,0,.5);background:#fff}
.lightbox .lb-cap{position:absolute;bottom:26px;left:0;right:0;text-align:center;color:#DCE7F2;font-size:15px}
.lightbox .lb-close{position:absolute;top:20px;right:26px;width:44px;height:44px;border-radius:50%;background:rgba(255,255,255,.14);color:#fff;font-size:24px;line-height:1;display:flex;align-items:center;justify-content:center;transition:.25s}
.lightbox .lb-close:hover{background:var(--orange);transform:rotate(90deg)}

/* ---------- 联系页 ---------- */
.contact-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.ccard{background:#fff;border-radius:var(--radius);padding:32px 24px;text-align:center;box-shadow:var(--shadow-sm);border-top:4px solid var(--green);transition:.3s}
.ccard:hover{transform:translateY(-6px);box-shadow:var(--shadow-md)}
.ccard .ic{width:58px;height:58px;margin:0 auto 18px;border-radius:16px;background:linear-gradient(135deg,rgba(14,84,158,.12),rgba(90,196,65,.2));display:flex;align-items:center;justify-content:center;color:var(--blue)}
.hero-tag svg{width:18px;height:18px;flex:none}
.cat-card .more svg{width:16px;height:16px;flex:none}
.map-box svg{width:18px;height:18px;flex:none;vertical-align:-4px}
.ccard .ic svg{width:28px;height:28px}
.ccard h3{font-size:16px;color:var(--blue-deep)}
.ccard p{font-size:14.5px;color:var(--muted);margin-top:8px;word-break:break-all}
.form-card{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow-md);padding:44px 48px;max-width:860px;margin:0 auto}
.form-card h2{text-align:center;font-size:26px;color:var(--blue-deep)}
.form-card .tip{text-align:center;color:var(--muted);margin-top:8px;font-size:14px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:30px}
.field{display:flex;flex-direction:column;gap:8px}
.field.full{grid-column:1/-1}
.field label{font-size:14px;font-weight:600;color:var(--blue-deep)}
.field label i{color:var(--red);font-style:normal;margin-left:2px}
.field input,.field textarea,.field select{border:1.5px solid var(--line);border-radius:10px;padding:13px 16px;transition:.25s;background:var(--bg)}
.field input:focus,.field textarea:focus,.field select:focus{border-color:var(--blue);background:#fff;box-shadow:0 0 0 4px rgba(14,84,158,.1)}
.field textarea{min-height:130px;resize:vertical}
.form-card .submit{margin-top:26px;text-align:center}
.form-note{text-align:center;color:#94A6B8;font-size:12.5px;margin-top:14px}
.map-box{margin-top:50px;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-md);background:linear-gradient(135deg,var(--blue-deep),var(--blue));color:#fff;padding:56px 40px;text-align:center}
.map-box h3{font-size:22px}
.map-box p{margin-top:10px;color:rgba(255,255,255,.85)}
.map-box .btn{margin-top:22px}

/* ---------- 留言成功提示 ---------- */
.toast{position:fixed;left:50%;bottom:40px;transform:translate(-50%,20px);background:var(--blue-deep);color:#fff;padding:14px 28px;border-radius:100px;font-size:15px;box-shadow:var(--shadow-lg);opacity:0;pointer-events:none;transition:.35s;z-index:300}
.toast.show{opacity:1;transform:translate(-50%,0)}

/* ---------- 页脚 ---------- */
.footer{background:var(--blue-deep);color:#9FB4C9;margin-top:90px}
.footer .main{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:44px;padding:64px 0 48px}
.footer h4{color:#fff;font-size:17px;letter-spacing:2px;margin-bottom:20px;position:relative;padding-bottom:12px}
.footer h4::after{content:"";position:absolute;left:0;bottom:0;width:32px;height:3px;border-radius:2px;background:var(--green)}
.footer .about p{font-size:14px;line-height:1.9}
.footer .about .slogan{color:var(--green);margin-top:14px;font-weight:600;letter-spacing:1px}
.footer ul li{margin-top:11px;font-size:14.5px}
.footer ul li a:hover{color:var(--green)}
.footer .contact li{display:flex;gap:10px;align-items:flex-start}
.footer .contact svg{width:17px;height:17px;flex:none;margin-top:5px;color:var(--green)}
.footer .contact a{color:#CFE0EF}
.footer .bar{border-top:1px solid rgba(255,255,255,.1);padding:20px 0;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:13px}
.footer .bar a{color:#9FB4C9}
.footer .bar a:hover{color:var(--green)}

/* ---------- 悬浮按钮 ---------- */
.floats{position:fixed;right:22px;bottom:90px;z-index:200;display:flex;flex-direction:column;gap:12px}
.fbtn{width:52px;height:52px;border-radius:50%;background:#fff;color:var(--blue);box-shadow:var(--shadow-md);display:flex;align-items:center;justify-content:center;transition:.3s;border:1px solid var(--line)}
.fbtn:hover{background:var(--blue);color:#fff;transform:translateY(-3px)}
.fbtn svg{width:24px;height:24px}
.fbtn.top{opacity:0;pointer-events:none}
.fbtn.top.show{opacity:1;pointer-events:auto}
.mobile-callbar{display:none}

/* ---------- 动画 ---------- */
html.js .reveal{opacity:0;transform:translateY(34px);transition:opacity .8s ease,transform .8s ease}
html.js .reveal.in{opacity:1;transform:none}
.d1{transition-delay:.1s}.d2{transition-delay:.2s}.d3{transition-delay:.3s}.d4{transition-delay:.4s}

/* ---------- 分页（静态装饰） ---------- */
.pager{display:flex;justify-content:center;gap:10px;margin-top:44px}
.pager span,.pager a{min-width:40px;height:40px;border-radius:10px;background:#fff;border:1px solid var(--line);display:inline-flex;align-items:center;justify-content:center;font-size:14px;color:var(--muted);padding:0 12px}
.pager .on{background:var(--blue);color:#fff;border-color:var(--blue)}

/* ---------- 响应式 ---------- */
@media(max-width:1080px){
  .prod-grid{grid-template-columns:repeat(3,1fr)}
  .adv-grid{grid-template-columns:repeat(2,1fr)}
  .flow-grid{grid-template-columns:repeat(3,1fr)}
  .apps-grid{grid-template-columns:repeat(2,1fr)}
  .footer .main{grid-template-columns:1fr 1fr}
  .split{gap:36px}
}
@media(max-width:900px){
  .topbar .slogan{display:none}
  .nav{position:fixed;top:0;right:-320px;width:300px;height:100vh;background:#fff;flex-direction:column;align-items:stretch;padding:90px 26px 40px;gap:6px;box-shadow:-16px 0 50px rgba(0,0,0,.15);transition:right .35s;overflow-y:auto;z-index:150}
  .nav.open{right:0}
  .nav > li > a{font-size:17px;padding:14px 10px;border-bottom:1px solid var(--line);border-radius:0}
  .nav > li > a::after{display:none}
  .dropdown{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;padding:0 0 8px 14px;display:none;min-width:0}
  .nav > li:hover .dropdown{transform:none}
  .nav > li.expanded .dropdown{display:block}
  .burger{display:flex;z-index:160}
  .burger.open span:nth-child(1){transform:translateY(8px) rotate(45deg)}
  .burger.open span:nth-child(2){opacity:0}
  .burger.open span:nth-child(3){transform:translateY(-8px) rotate(-45deg)}
  .header-cta .phone-label{display:none}
  .hero{min-height:520px;height:74vh}
  .stats-band .grid{grid-template-columns:repeat(2,1fr)}
  .stat:nth-child(3)::before{display:none}
  .cat-grid,.case-grid,.news-grid{grid-template-columns:repeat(2,1fr)}
  .prod-grid{grid-template-columns:repeat(2,1fr)}
  .split{grid-template-columns:1fr}
  .split .pics .badge{left:16px}
  .cat-lead{grid-template-columns:1fr}
  .pd-layout{grid-template-columns:1fr}
  .pd-gallery .main{height:320px}
  .feat-grid{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:repeat(2,1fr)}
  .cta-band{flex-direction:column;text-align:center;padding:44px 28px}
  .cta-band .acts{justify-content:center}
  .article{padding:34px 26px}
  .honor-grid{grid-template-columns:repeat(2,1fr)}
  .cert-grid{grid-template-columns:repeat(2,1fr)}
  .cert-strip{grid-template-columns:1fr;gap:30px;padding:38px 30px}
  .cert-count{align-self:flex-start}
}
@media(max-width:600px){
  .section{padding:60px 0}
  .logo .sub{display:none}
  .logo .name{font-size:19px}
  .logo .mark{width:38px;height:38px}
  .header-cta .phone-num{font-size:16px}
  .header-cta .phone-num,.header-cta{white-space:nowrap}
  .hero-dots{display:none}
  .hero{min-height:600px;height:auto;padding-bottom:120px}
  .mobile-callbar svg{width:20px;height:20px;flex:none}
  .mobile-callbar a{gap:6px;font-size:14px;padding:11px 0}
  .stats-band .grid{grid-template-columns:repeat(2,1fr)}
  .stat .num{font-size:32px}
  .cat-grid,.case-grid,.news-grid,.prod-grid,.adv-grid,.flow-grid,.honor-grid,.contact-grid,.cert-grid{grid-template-columns:1fr}
  .cert-strip{padding:32px 20px;border-radius:14px}
  .cert-strip .cs-pics{grid-template-columns:repeat(2,1fr)}
  .cs-pic:first-child,.cs-pic:nth-child(4){grid-column:span 1}
  .cs-pic:last-child{display:none}
  .footer .main{grid-template-columns:1fr;gap:30px}
  .form-grid{grid-template-columns:1fr}
  .form-card{padding:32px 22px}
  .hero-btns .btn{width:100%}
  .pd-thumbs{grid-template-columns:repeat(4,1fr)}
  .apps-grid{grid-template-columns:1fr}
  .mobile-callbar{display:flex;position:fixed;left:0;right:0;bottom:0;z-index:210;background:#fff;box-shadow:0 -6px 24px rgba(13,43,74,.15)}
  .mobile-callbar a{flex:1;display:flex;align-items:center;justify-content:center;gap:8px;padding:13px 0;font-weight:700;font-size:15px}
  .mobile-callbar a.tel{background:var(--orange);color:#fff}
  .mobile-callbar a.msg{color:var(--blue)}
  .floats{bottom:74px}
  body{padding-bottom:52px}
}