/* ============================================================
   ENOSSEN 依诺信自动化 — 共享样式
   蓝白工业风 · mobile-first (基准 375px)
   ============================================================ */

:root{
  --blue:#0f5fd8;
  --blue-strong:#0a4cb8;
  --blue-deep:#0a3d7a;
  --navy:#0b2547;
  --navy-ink:#081a33;
  --cyan:#10a3c6;
  --sky:#eaf2fc;
  --cloud:#f3f6fa;
  --paper:#ffffff;
  --ink:#17222f;
  --muted:#5c6b7d;
  --line:#dfe7f0;
  --shadow:0 10px 30px rgba(11,37,71,.10);
  --shadow-sm:0 4px 14px rgba(11,37,71,.08);
  --radius:14px;
  --font:"Microsoft YaHei","PingFang SC","Noto Sans SC","Source Han Sans SC","Segoe UI",system-ui,sans-serif;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--font);color:var(--ink);background:var(--paper);line-height:1.65;-webkit-font-smoothing:antialiased;font-size:16px}
img{max-width:100%;display:block}
a{color:var(--blue);text-decoration:none}
h1,h2,h3,h4,p{margin:0}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit;cursor:pointer}

.container{width:100%;max-width:1160px;margin:0 auto;padding:0 20px}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--navy-ink);color:#c9d7e8;font-size:13px}
.topbar .container{display:flex;justify-content:space-between;align-items:center;min-height:34px;gap:12px;flex-wrap:wrap}
.topbar a{color:#c9d7e8}
.topbar .t-right{display:flex;gap:16px;flex-wrap:wrap}
.topbar .t-item{display:inline-flex;align-items:center;gap:6px}
.topbar svg{flex:none;opacity:.85}

/* ---------- 页头 ---------- */
.header{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.96);backdrop-filter:blur(6px);border-bottom:1px solid var(--line)}
.header .container{display:flex;align-items:center;justify-content:space-between;height:70px;gap:16px}
.brand{display:flex;align-items:center;gap:10px;flex:none}
.brand img{height:42px;width:auto;flex:none}
.brand .b-text{line-height:1.12}
.brand .b-en{font-size:19px;font-weight:800;color:var(--navy);letter-spacing:.5px}
.brand .b-cn{font-size:11px;color:var(--muted);letter-spacing:1px}
.nav{display:none;align-items:center;gap:4px}
.nav a{color:var(--ink);font-size:15px;padding:8px 13px;border-radius:8px;font-weight:500}
.nav a:hover{color:var(--blue);background:var(--sky)}
.nav a.active{color:var(--blue);background:var(--sky);font-weight:600}
.header-cta{display:none;align-items:center;gap:12px}
.cta-tel{display:flex;flex-direction:column;line-height:1.15;text-align:right}
.cta-tel .l{font-size:11px;color:var(--muted)}
.cta-tel .n{font-size:17px;font-weight:800;color:var(--blue)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:none;border-radius:9px;font-weight:600;font-size:15px;padding:11px 20px;transition:.18s;text-align:center}
.btn-blue{background:var(--blue);color:#fff}
.btn-blue:hover{background:var(--blue-strong)}
.btn-outline{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.85)}
.btn-outline:hover{background:rgba(255,255,255,.14)}
.btn-dark{background:var(--navy);color:#fff}
.btn-dark:hover{background:var(--navy-ink)}
.btn-lg{padding:13px 26px;font-size:16px}
.btn svg{width:17px;height:17px;flex:none}

/* 移动端导航 */
.nav-toggle{display:inline-flex;align-items:center;justify-content:center;width:42px;height:42px;border:1px solid var(--line);border-radius:9px;background:#fff}
.nav-toggle svg{width:22px;height:22px;stroke:var(--navy)}
/* 语言切换按钮 */
.lang-toggle{flex:none;background:#fff;border:1px solid var(--line);color:var(--navy);border-radius:9px;padding:8px 13px;font-size:13px;font-weight:700;cursor:pointer;transition:.2s;line-height:1;margin-left:10px}
.lang-toggle:hover{background:var(--sky);color:var(--blue);border-color:var(--blue)}
.mnav .lang-toggle{margin:18px 22px;width:auto}
.mnav{position:fixed;inset:70px 0 0 0;background:#fff;z-index:55;display:block;transform:translateX(100%);transition:.26s;overflow-y:auto}
.mnav.open{transform:translateX(0)}
.mnav a{display:block;padding:15px 22px;border-bottom:1px solid var(--line);color:var(--ink);font-size:16px;font-weight:500}
.mnav a.active{color:var(--blue);background:var(--sky)}
.mnav .mnav-cta{padding:18px 22px}

/* ---------- 通用区块 ---------- */
.section{padding:56px 0}
.section.cloud{background:var(--cloud)}
.section.sky{background:var(--sky)}
.sec-head{max-width:720px;margin:0 auto 36px;text-align:center}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--blue);letter-spacing:2px}
.eyebrow::before{content:"";width:18px;height:2px;background:var(--blue)}
.sec-head h2{font-size:26px;font-weight:800;color:var(--navy);margin:10px 0 10px;line-height:1.3}
.sec-head p{color:var(--muted);font-size:15px}

/* ---------- Hero（首页） ---------- */
.hero{position:relative;color:#fff;overflow:hidden;background:var(--navy)}
.hero-bg{position:absolute;inset:0}
.hero-bg img{width:100%;height:100%;object-fit:cover;object-position:center;opacity:.42}
.hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(8,26,51,.72),rgba(8,26,51,.55) 55%,rgba(8,26,51,.86))}
.hero-inner{position:relative;z-index:2;padding:64px 0 58px;max-width:820px}
.hero-badge{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:#bfe0ff;border:1px solid rgba(255,255,255,.28);padding:6px 13px;border-radius:30px;background:rgba(255,255,255,.06)}
.hero h1{font-size:31px;font-weight:800;line-height:1.28;margin:18px 0 14px;letter-spacing:.5px}
.hero h1 .hl{color:#7ec8ff}
.hero p.lead{font-size:16px;color:#dfe9f6;max-width:640px}
.hero-actions{display:flex;gap:12px;margin-top:26px;flex-wrap:wrap}
.hero-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:40px;border-top:1px solid rgba(255,255,255,.2);padding-top:24px;max-width:640px}
.hstat b{display:block;font-size:24px;font-weight:800;color:#fff}
.hstat b em{font-style:normal;font-size:15px;color:#9fd0ff}
.hstat span{font-size:12.5px;color:#c6d6e9}

/* ---------- 核心业务（聚焦/专注/对准） ---------- */
.pillars{display:grid;grid-template-columns:1fr;gap:16px}
.pillar{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px 24px;transition:.2s}
.pillar:hover{box-shadow:var(--shadow);transform:translateY(-3px)}
.pillar .ico{width:50px;height:50px;border-radius:12px;background:var(--sky);display:flex;align-items:center;justify-content:center;color:var(--blue);margin-bottom:16px}
.pillar .ico svg{width:26px;height:26px}
.pillar h3{font-size:18px;font-weight:700;color:var(--navy);margin-bottom:8px}
.pillar p{font-size:14.5px;color:var(--muted)}
.pillar .idx{font-size:12px;font-weight:700;color:var(--blue);letter-spacing:1px;margin-bottom:6px}

/* ---------- 案例卡片 ---------- */
.case-grid{display:grid;grid-template-columns:1fr;gap:20px}
.case-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:.2s;display:flex;flex-direction:column}
.case-card:hover{box-shadow:var(--shadow);transform:translateY(-3px)}
.case-card .thumb{position:relative;aspect-ratio:4/3;overflow:hidden;background:var(--cloud)}
.case-card .thumb img{width:100%;height:100%;object-fit:cover;transition:.35s}
.case-card:hover .thumb img{transform:scale(1.05)}
.case-card .tag{position:absolute;top:12px;left:12px;font-size:12px;font-weight:600;color:#fff;background:rgba(15,95,216,.92);padding:4px 11px;border-radius:20px}
.case-card .body{padding:16px 18px 18px;display:flex;flex-direction:column;gap:8px;flex:1}
.case-card h3{font-size:16.5px;font-weight:700;color:var(--navy);line-height:1.4}
.case-card p{font-size:13.5px;color:var(--muted);flex:1}
.case-card .more{display:inline-flex;align-items:center;gap:5px;font-size:13.5px;font-weight:600;color:var(--blue)}
.case-card .more svg{width:15px;height:15px;transition:.2s}
.case-card:hover .more svg{transform:translateX(3px)}
.case-cta-card{background:linear-gradient(160deg,var(--blue-deep),var(--navy));color:#fff;border:none;display:flex;align-items:center;justify-content:center;text-align:center;min-height:200px}
.case-cta-card:hover{transform:none;box-shadow:var(--shadow)}
.case-cta-card .in{padding:26px}
.case-cta-card h3{color:#fff;font-size:19px;font-weight:800}
.case-cta-card p{color:#c9ddf3;font-size:14px;margin:10px 0 18px}

/* ---------- 案例筛选 ---------- */
.filter-bar{display:flex;gap:10px;flex-wrap:wrap;justify-content:center;margin-bottom:30px}
.filter-btn{border:1px solid var(--line);background:#fff;color:var(--ink);font-size:14px;font-weight:500;padding:9px 18px;border-radius:30px;transition:.16s}
.filter-btn:hover{border-color:var(--blue);color:var(--blue)}
.filter-btn.active{background:var(--blue);border-color:var(--blue);color:#fff}
.filter-btn .cnt{opacity:.6;font-size:12px;margin-left:4px}

/* ---------- 服务流程 ---------- */
.steps{display:grid;grid-template-columns:1fr;gap:14px}
.step{display:flex;gap:14px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:18px}
.step .num{flex:none;width:44px;height:44px;border-radius:10px;background:var(--sky);color:var(--blue);font-weight:800;font-size:17px;display:flex;align-items:center;justify-content:center}
.step h4{font-size:16px;font-weight:700;color:var(--navy);margin-bottom:3px}
.step p{font-size:13.5px;color:var(--muted)}
.svc-grid{display:grid;grid-template-columns:1fr;gap:16px}
.svc{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px 20px;text-align:center;transition:.2s}
.svc:hover{box-shadow:var(--shadow);transform:translateY(-3px)}
.svc .svc-ico{width:52px;height:52px;margin:0 auto 14px;border-radius:12px;background:var(--sky);display:flex;align-items:center;justify-content:center;color:var(--blue)}
.svc .svc-ico svg{width:26px;height:26px}
.svc h3{font-size:17px;font-weight:700;color:var(--navy);margin-bottom:8px}
.svc p{font-size:14px;color:var(--muted)}

/* ---------- 荣誉资质 ---------- */
.cert-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.cert{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:.2s;cursor:pointer}
.cert:hover{box-shadow:var(--shadow)}
.cert img{aspect-ratio:3/4;object-fit:cover;width:100%;background:var(--cloud)}
.cert figcaption{font-size:12.5px;color:var(--muted);text-align:center;padding:10px 8px}

/* ---------- 关于简述 ---------- */
.about-split{display:grid;grid-template-columns:1fr;gap:24px;align-items:center}
.about-split .pic{border-radius:var(--radius);overflow:hidden}
.about-split .pic img{width:100%;aspect-ratio:4/3;object-fit:cover}
.about-txt h2{font-size:24px;font-weight:800;color:var(--navy);line-height:1.35;margin-bottom:12px}
.about-txt p{color:var(--muted);font-size:15px;margin-bottom:12px}
.about-points{display:grid;grid-template-columns:1fr;gap:10px;margin:16px 0 22px}
.apoint{display:flex;gap:10px;align-items:flex-start}
.apoint svg{width:20px;height:20px;color:var(--blue);flex:none;margin-top:2px}
.apoint b{display:block;font-size:15px;color:var(--navy)}
.apoint span{font-size:13px;color:var(--muted)}

/* ---------- CTA 带 ---------- */
.cta-band{background:linear-gradient(120deg,var(--blue-deep),var(--navy));color:#fff;border-radius:var(--radius);padding:34px 26px;text-align:center}
.cta-band h2{font-size:23px;font-weight:800;margin-bottom:8px}
.cta-band p{color:#c9ddf3;font-size:15px;margin-bottom:22px}
.cta-band .cta-row{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}

/* ---------- 页头（子页） ---------- */
.page-hero{background:linear-gradient(120deg,var(--navy),var(--blue-deep));color:#fff;padding:44px 0 40px}
.page-hero .crumb{font-size:13px;color:#a8c4e2;margin-bottom:8px}
.page-hero .crumb a{color:#a8c4e2}
.page-hero .crumb a:hover{color:#fff}
.page-hero h1{font-size:28px;font-weight:800;margin-bottom:8px}
.page-hero p{font-size:15px;color:#c9ddf3;max-width:680px}

/* ---------- 案例详情 ---------- */
.case-detail-hero{display:grid;grid-template-columns:1fr;gap:22px;align-items:center}
.case-detail-hero .pic{border-radius:var(--radius);overflow:hidden}
.case-detail-hero .pic img{width:100%;aspect-ratio:4/3;object-fit:cover}
.cd-meta h1{font-size:25px;font-weight:800;color:var(--navy);line-height:1.35;margin-bottom:10px}
.cd-meta .cd-tag{display:inline-block;font-size:12.5px;font-weight:600;color:#fff;background:var(--blue);padding:4px 12px;border-radius:20px;margin-bottom:14px}
.cd-meta .cd-ovr{font-size:15px;color:var(--muted);margin-bottom:16px}
.cd-actions{display:flex;gap:12px;flex-wrap:wrap}
.cd-block{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px}
.cd-block + .cd-block{margin-top:22px}
.cd-block h2{font-size:20px;font-weight:800;color:var(--navy);display:flex;align-items:center;gap:10px;margin-bottom:16px;padding-bottom:12px;border-bottom:2px solid var(--sky)}
.cd-block h2::before{content:"";width:5px;height:22px;background:var(--blue);border-radius:3px}
.feat-list{display:grid;grid-template-columns:1fr;gap:12px}
.feat{display:flex;gap:12px;align-items:flex-start;background:var(--cloud);border-radius:11px;padding:14px}
.feat .fi{flex:none;width:34px;height:34px;border-radius:9px;background:#fff;color:var(--blue);display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-sm)}
.feat .fi svg{width:18px;height:18px}
.feat b{display:block;font-size:15px;color:var(--navy);margin-bottom:2px}
.feat span{font-size:13.5px;color:var(--muted)}
.spec-table{width:100%;border-collapse:collapse;table-layout:fixed;font-size:14px}
.spec-table col:first-child{width:34%}
.spec-table th,.spec-table td{text-align:left;padding:11px 13px;border-bottom:1px solid var(--line);vertical-align:top}
.spec-table th{color:var(--navy);font-weight:700;background:var(--cloud);width:34%}
.spec-table td{color:var(--ink)}
.gallery{display:grid;grid-template-columns:1fr;gap:12px}
.gallery img{border-radius:11px;width:100%;aspect-ratio:4/3;object-fit:cover;cursor:pointer;transition:.2s}
.gallery img:hover{opacity:.88}
.scene-list li{display:flex;gap:10px;align-items:flex-start;padding:8px 0;font-size:14.5px;color:var(--ink);border-bottom:1px dashed var(--line)}
.scene-list li::before{content:"";flex:none;width:7px;height:7px;border-radius:50%;background:var(--blue);margin-top:8px}
.custom-note{display:flex;gap:12px;background:var(--sky);border-left:4px solid var(--blue);border-radius:9px;padding:15px 16px}
.custom-note svg{flex:none;width:22px;height:22px;color:var(--blue)}
.custom-note p{font-size:14px;color:var(--navy)}

/* ---------- 联系 / 表单 ---------- */
.contact-wrap{display:grid;grid-template-columns:1fr;gap:24px}
.contact-info{display:grid;grid-template-columns:1fr;gap:14px}
.ci{display:flex;gap:14px;align-items:flex-start;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:18px}
.ci .ico{flex:none;width:44px;height:44px;border-radius:11px;background:var(--sky);color:var(--blue);display:flex;align-items:center;justify-content:center}
.ci .ico svg{width:22px;height:22px}
.ci b{display:block;font-size:15px;color:var(--navy);margin-bottom:2px}
.ci span,.ci a{font-size:14px;color:var(--muted)}
.ci a{color:var(--blue);font-weight:600}
.contact-form{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px}
.contact-form h3{font-size:19px;font-weight:800;color:var(--navy);margin-bottom:18px}
.field{margin-bottom:14px}
.field label{display:block;font-size:13.5px;font-weight:600;color:var(--navy);margin-bottom:6px}
.field input,.field textarea,.field select{width:100%;border:1px solid var(--line);border-radius:9px;padding:12px 13px;font-size:16px;font-family:inherit;color:var(--ink);background:#fff;transition:.16s}
.field input:focus,.field textarea:focus,.field select:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 3px rgba(15,95,216,.12)}
.field textarea{min-height:110px;resize:vertical}
.form-msg{display:none;font-size:14px;font-weight:600;padding:11px 14px;border-radius:9px;margin-bottom:12px}
.form-msg.ok{display:block;background:#e6f6ec;color:#177245}
.form-msg.err{display:block;background:#fdecec;color:#b03a3a}

/* ---------- 页脚 ---------- */
.footer{background:var(--navy-ink);color:#b9c8da;font-size:13.5px}
.footer .container{padding-top:44px;padding-bottom:30px}
.footer-top{display:grid;grid-template-columns:1fr;gap:26px;padding-bottom:30px;border-bottom:1px solid rgba(255,255,255,.1)}
.f-about .brand{margin-bottom:12px}
.f-about .brand .b-en{color:#fff}
.f-about .brand .b-cn{color:#8fa6c0}
.f-about p{color:#9fb3c9;font-size:13.5px;max-width:340px}
.f-col h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:14px}
.f-col a{display:block;color:#9fb3c9;padding:5px 0}
.f-col a:hover{color:#fff}
.f-col .f-contact li{display:flex;gap:9px;align-items:flex-start;padding:5px 0}
.f-col .f-contact svg{width:17px;height:17px;color:var(--blue);flex:none;margin-top:3px}
.footer-bottom{display:flex;flex-direction:column;gap:8px;padding-top:18px;font-size:12.5px;color:#7f93ab}
.footer-bottom a{color:#7f93ab}

/* ---------- 图册弹窗（lightbox） ---------- */
.lightbox{position:fixed;inset:0;background:rgba(8,20,38,.88);z-index:100;display:none;align-items:center;justify-content:center;padding:24px}
.lightbox.open{display:flex}
.lightbox img{max-width:92vw;max-height:88vh;border-radius:8px}
.lightbox .lb-close{position:absolute;top:18px;right:22px;color:#fff;font-size:34px;line-height:1;background:none;border:none}

/* ============================================================
   断点
   ============================================================ */
@media (min-width:768px){
  .nav{display:flex}
  .header-cta{display:flex}
  .nav-toggle{display:none}
  .mnav{display:none}
  .section{padding:72px 0}
  .pillars{grid-template-columns:repeat(3,1fr)}
  .svc-grid{grid-template-columns:repeat(4,1fr)}
  .case-grid{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(3,1fr);gap:16px}
  .step{flex-direction:column}
  .about-split{grid-template-columns:1fr 1fr}
  .about-points{grid-template-columns:1fr 1fr}
  .case-detail-hero{grid-template-columns:1.05fr 1fr}
  .feat-list{grid-template-columns:1fr 1fr}
  .gallery{grid-template-columns:repeat(3,1fr)}
  .contact-wrap{grid-template-columns:1fr 1fr}
  .contact-info{grid-template-columns:1fr 1fr}
  .footer-top{grid-template-columns:1.6fr 1fr 1fr 1.2fr}
  .footer-bottom{flex-direction:row;justify-content:space-between}
  .hero h1{font-size:42px}
  .hero-inner{padding:84px 0 76px}
  .hstat b{font-size:30px}
}
@media (min-width:1080px){
  .case-grid{grid-template-columns:repeat(3,1fr)}
  .cert-grid{grid-template-columns:repeat(5,1fr)}
  .sec-head h2{font-size:31px}
}

@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
  html{scroll-behavior:auto}
}