/* 亿通信息官网 · 全站样式
   移动优先 / 稳重蓝 + 深青 + 浅灰 / 动画克制 */
:root{
  --navy:#0b2f4a; --navy-2:#0e3a5f; --teal:#0d626d; --teal-2:#0e7c86;
  --ink:#132430; --body:#33454f; --muted:#687b86; --line:#dce5ea;
  --bg:#f4f7f9; --soft:#eaf1f4; --white:#fff;
  --shadow:0 8px 26px rgba(11,47,74,.08);
  --radius:10px; --maxw:1180px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:76px;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--white);color:var(--body);font-size:15px;line-height:1.75;
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,-apple-system,Arial,sans-serif}
img{max-width:100%;display:block}
a{color:var(--teal);text-decoration:none}
a:hover{color:var(--teal-2)}
h1,h2,h3,h4{color:var(--ink);line-height:1.35;margin:0 0 .6em;font-weight:700}
h1{font-size:1.9rem;letter-spacing:.01em}
h2{font-size:1.55rem}
h3{font-size:1.08rem}
p{margin:0 0 1em}
ul,ol{margin:0 0 1em;padding-left:1.2em}
button,input,select,textarea{font:inherit;color:inherit}
.wrap{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 18px}
.section{padding:46px 0}
.section.alt{background:var(--bg)}
.section.deep{background:var(--navy);color:#dceaf1}
.section.deep h2,.section.deep h3{color:#fff}
.sec-head{max-width:760px;margin:0 auto 26px;text-align:center}
.sec-head .kicker{display:inline-block;font-size:12px;letter-spacing:.16em;color:var(--teal);
  font-weight:700;margin-bottom:8px;text-transform:uppercase}
.sec-head p{color:var(--muted);margin:0}
.sec-head.left{margin-left:0;text-align:left}
.section.deep .sec-head p{color:#b9d0dc}
.eyebrow{font-size:12px;letter-spacing:.14em;font-weight:700;color:var(--teal);text-transform:uppercase}

/* ---------- 顶部悬浮导航 ---------- */
.site-header{position:fixed;top:0;left:0;right:0;z-index:80;background:rgba(255,255,255,.97);
  border-bottom:1px solid var(--line);transition:box-shadow .25s ease}
.site-header.scrolled{box-shadow:0 4px 18px rgba(11,47,74,.10)}
.header-in{height:62px;display:flex;align-items:center;justify-content:space-between;gap:12px}
.brand{display:flex;align-items:center;gap:9px;min-width:0;flex-shrink:0}
.brand img{height:34px;width:auto}
.brand .brand-txt{font-size:12px;color:var(--muted);line-height:1.25;border-left:1px solid var(--line);padding-left:9px;white-space:nowrap}
.desktop-nav{display:none}
.desktop-nav ul{display:flex;gap:2px;list-style:none;margin:0;padding:0}
.desktop-nav a{display:block;padding:8px 11px;font-size:14px;color:var(--ink);font-weight:600;border-radius:6px;white-space:nowrap}
.desktop-nav a:hover{background:var(--soft);color:var(--teal)}
.desktop-nav a.active{color:var(--teal);background:var(--soft)}
.header-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.btn-nav{display:none;background:var(--teal);color:#fff!important;padding:9px 15px;border-radius:6px;
  font-size:13px;font-weight:700;white-space:nowrap}
.btn-nav:hover{background:var(--teal-2)}
.hamburger{width:40px;height:38px;border:1px solid var(--line);background:#fff;border-radius:6px;
  display:flex;align-items:center;justify-content:center;cursor:pointer;padding:0}
.hamburger span{display:block;width:19px;height:2px;background:var(--navy);position:relative}
.hamburger span::before,.hamburger span::after{content:"";position:absolute;left:0;width:19px;height:2px;background:var(--navy)}
.hamburger span::before{top:-6px}.hamburger span::after{top:6px}
.mobile-nav{display:none;background:#fff;border-bottom:1px solid var(--line);padding:8px 18px 16px;
  box-shadow:0 12px 22px rgba(11,47,74,.08)}
.mobile-nav.open{display:block}
.mobile-nav a{display:block;padding:11px 6px;border-bottom:1px solid var(--line);color:var(--ink);font-weight:600}
.mobile-nav a:last-of-type{border-bottom:0}
.mobile-nav .btn{display:block;text-align:center;margin-top:12px}
main{padding-top:62px}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:12px 20px;
  border-radius:7px;font-size:14.5px;font-weight:700;border:1px solid transparent;cursor:pointer;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease}
.btn:hover{transform:translateY(-2px)}
.btn-primary{background:var(--teal);color:#fff}
.btn-primary:hover{background:var(--teal-2);color:#fff;box-shadow:0 8px 18px rgba(13,98,109,.22)}
.btn-light{background:#fff;color:var(--navy)}
.btn-light:hover{color:var(--teal)}
.btn-ghost{border-color:rgba(255,255,255,.55);color:#fff;background:transparent}
.btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff}
.btn-outline{border-color:var(--line);color:var(--navy);background:#fff}
.btn-outline:hover{border-color:var(--teal);color:var(--teal)}
.btn-sm{padding:9px 15px;font-size:13px}
.btn-row{display:flex;flex-wrap:wrap;gap:10px}
.center{text-align:center}

/* ---------- 首屏 ---------- */
.hero{position:relative;overflow:hidden;background:linear-gradient(135deg,#0a2b45 0%,#0e3f5c 52%,#0d626d 100%);color:#e8f2f6}
.hero::after{content:"";position:absolute;right:-140px;top:-120px;width:460px;height:460px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,255,255,.09),transparent 65%);pointer-events:none}
.hero-in{position:relative;z-index:1;padding-top:52px;padding-bottom:56px}
.hero .eyebrow{color:#9fd4dc}
.hero h1{color:#fff;font-size:1.95rem;line-height:1.32;margin:12px 0 14px;max-width:920px}
.hero h1 em{font-style:normal;color:#7fe0d6}
.hero .lead{color:#c9dde6;font-size:15px;max-width:760px;margin-bottom:22px}
.hero .btn-row{margin-bottom:20px}
.hero-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px}
.hero-tags span{font-size:12px;padding:6px 11px;border-radius:4px;background:rgba(255,255,255,.10);
  color:#dceef3;border:1px solid rgba(255,255,255,.16)}
.hero-side{margin-top:28px;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.16);
  border-radius:var(--radius);padding:18px 18px 14px}
.hero-side h3{color:#fff;font-size:14px;margin:0 0 10px}
.hero-side .stat-row{display:flex;justify-content:space-between;gap:10px;padding:8px 0;
  border-top:1px dashed rgba(255,255,255,.16);font-size:13px;color:#cfe3ea}
.hero-side .stat-row b{color:#fff;font-weight:700}
.hero-side .side-note{font-size:12px;color:#a9c8d5;margin:10px 0 0}
.hero .disclaimer{font-size:12px;color:#9dbccb;margin-top:18px}

/* ---------- 通用卡片 / 网格 ---------- */
.grid{display:grid;gap:14px;grid-template-columns:1fr}
.grid.g2,.grid.g3,.grid.g4{grid-template-columns:1fr}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:#bcd3dc}
.card h3{margin:0 0 8px;font-size:1.05rem}
.card p{margin:0;color:var(--muted);font-size:14px}
.card .card-ico{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;
  border-radius:8px;background:var(--soft);font-size:20px;margin-bottom:12px}
.card .card-no{font-size:12px;font-weight:800;letter-spacing:.12em;color:var(--teal);margin-bottom:8px}
.card .tag{display:inline-block;margin-top:12px;font-size:12px;padding:4px 9px;border-radius:4px;
  background:var(--soft);color:var(--teal);font-weight:700}
.card .card-link{display:inline-block;margin-top:14px;font-size:13.5px;font-weight:700;color:var(--teal)}
.card.soft{background:var(--bg);border-color:var(--line)}
.num-list{counter-reset:n;display:grid;gap:14px;grid-template-columns:1fr}
.why-item{display:flex;gap:14px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:16px 18px}
.why-item .tick{flex:0 0 26px;height:26px;border-radius:50%;background:var(--teal);color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:800;margin-top:2px}
.why-item b{display:block;color:var(--ink);margin-bottom:3px}
.why-item p{margin:0;color:var(--muted);font-size:14px}
.chips{display:flex;flex-wrap:wrap;gap:9px;justify-content:center}
.chips span{padding:9px 16px;border:1px solid #cddde3;background:#fff;border-radius:6px;
  font-size:14px;font-weight:600;color:var(--navy)}
.note{font-size:12.5px;color:var(--muted);line-height:1.8}
.notice{background:#fff8e9;border:1px solid #f0dcae;border-left:3px solid #d99b26;border-radius:6px;
  padding:12px 15px;font-size:13px;color:#6c572c;line-height:1.8}
.notice.dark{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.2);color:#d9e9ef}
.ph{color:#a8663a!important;font-style:normal}

/* ---------- 表格 ---------- */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius);background:#fff}
table{width:100%;border-collapse:collapse;font-size:13.5px;min-width:560px}
th,td{padding:11px 14px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
th{background:var(--soft);color:var(--navy);font-weight:700;white-space:nowrap}
tbody tr:last-child td{border-bottom:0}
td strong{color:var(--teal)}

/* ---------- 案例 / 图片占位 ---------- */
.case-metrics{display:flex;flex-wrap:wrap;gap:10px;margin:14px 0 0}
.case-metrics span{background:var(--soft);border-radius:5px;padding:6px 11px;font-size:12.5px;color:var(--navy);font-weight:600}
.photo-grid{display:grid;gap:12px;grid-template-columns:1fr}
.ph-box{aspect-ratio:16/9;border:1.5px dashed #c3d5dd;border-radius:var(--radius);background:var(--bg);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;color:var(--muted);
  font-size:13px;text-align:center;padding:14px}
.ph-box .ph-ico{font-size:26px;opacity:.65}
.ph-box small{font-size:11.5px;color:#8b9ba4}
.case-photo{margin:0;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#fff}
.case-photo img{display:block;width:100%;height:225px;object-fit:cover}
.case-photo figcaption{padding:9px 12px;font-size:12.5px;color:var(--muted);background:#fff;border-top:1px solid var(--line)}
@media(min-width:900px){.case-photo img{height:255px}}
.logo-wall{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;margin-top:16px}
.logo-wall div{height:64px;border-radius:10px;
  display:flex;align-items:center;justify-content:center;font-size:13.5px;font-weight:700;color:#fff;text-align:center;padding:8px;
  transition:transform .18s ease,box-shadow .18s ease}
.logo-wall div:hover{transform:translateY(-3px);box-shadow:0 8px 18px rgba(23,64,86,.18)}
.logo-wall div.c0{background:linear-gradient(135deg,#1e6fb8,#2fa3c9)}
.logo-wall div.c1{background:linear-gradient(135deg,#0f9d8f,#3ec6a8)}
.logo-wall div.c2{background:linear-gradient(135deg,#e8762c,#f2a94e)}
.logo-wall div.c3{background:linear-gradient(135deg,#7b5cc9,#a98be0)}
.logo-wall div.c4{background:linear-gradient(135deg,#d4536a,#ef8195)}
.logo-wall div.c5{background:linear-gradient(135deg,#3d8b40,#6fbf62)}

/* ---------- 资质证书 ---------- */
.cert-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.cert{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:0;overflow:hidden;
  cursor:pointer;text-align:left;width:100%;transition:transform .2s ease,box-shadow .2s ease}
.cert:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.cert .cert-img{aspect-ratio:4/3;background:var(--bg);border-bottom:1px dashed #c8d8df;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;color:#8fa2ab;font-size:12px}
.cert .cert-img .ph-ico{font-size:24px}
.cert .cert-img img{display:block;width:100%;height:100%;object-fit:contain;background:#fff;padding:8px}
.cert b{display:block;padding:10px 12px;font-size:13px;color:var(--ink)}
.modal{position:fixed;inset:0;z-index:120;background:rgba(6,25,38,.72);display:none;
  align-items:center;justify-content:center;padding:20px}
.modal.open{display:flex}
.modal-in{background:#fff;border-radius:12px;max-width:560px;width:100%;padding:24px;position:relative}
.modal-in h3{margin:0 0 10px}
.modal-in .cert-img{aspect-ratio:4/3;background:var(--bg);border:1.5px dashed #c8d8df;border-radius:8px;
  display:flex;align-items:center;justify-content:center;color:#8fa2ab;font-size:13px;margin-bottom:12px}
.modal-in .cert-img.has-img{border:0;padding:0;background:#fff;aspect-ratio:auto}
.modal-in .cert-img.has-img img{display:block;max-width:100%;max-height:64vh;margin:0 auto;
  border-radius:6px;box-shadow:0 4px 18px rgba(6,25,38,.14)}
.modal-close{position:absolute;right:12px;top:10px;border:0;background:transparent;font-size:22px;cursor:pointer;color:var(--muted)}

/* ---------- FAQ ---------- */
.faq{max-width:860px;margin:0 auto}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:8px;margin-bottom:10px;overflow:hidden}
.faq-item[open]{border-color:#bcd3dc}
.faq-item summary{padding:14px 46px 14px 16px;cursor:pointer;font-weight:700;color:var(--ink);
  list-style:none;position:relative;font-size:14.5px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";position:absolute;right:16px;top:11px;font-size:20px;color:var(--teal);font-weight:400}
.faq-item[open] summary::after{content:"−"}
.faq-a{padding:0 16px 15px;color:var(--muted);font-size:14px;border-top:1px solid var(--line);margin-top:2px;padding-top:12px}

/* ---------- 表单 ---------- */
.lead-section{background:linear-gradient(135deg,#0e3f5c,#0d626d);padding:46px 0;color:#dcebf1}
.lead-section h2{color:#fff}
.lead-section .sec-head p{color:#bcd7e1}
.lead-card{background:#fff;border-radius:12px;padding:20px;box-shadow:0 16px 40px rgba(4,25,40,.18);max-width:760px;margin:0 auto}
.lead-card h3{text-align:center;margin-bottom:4px}
.lead-card .form-sub{text-align:center;color:var(--muted);font-size:13px;margin-bottom:18px}
.form-grid{display:grid;gap:14px;grid-template-columns:1fr}
.field label{display:block;font-size:13px;font-weight:700;color:var(--ink);margin-bottom:6px}
.field label i{color:#c1443a;font-style:normal}
.field input,.field select,.field textarea{width:100%;padding:11px 12px;border:1px solid #cfdce2;border-radius:6px;
  background:#fff;font-size:14px;outline:none;transition:border-color .18s ease,box-shadow .18s ease}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--teal);box-shadow:0 0 0 3px rgba(13,98,109,.10)}
.field textarea{min-height:86px;resize:vertical}
.field .err{color:#c1443a;font-size:12px;margin-top:5px;display:none}
.field.invalid .err{display:block}
.field.invalid input,.field.invalid select{border-color:#c1443a}
.form-foot{margin-top:18px;text-align:center}
.form-foot .btn{width:100%;max-width:340px}
.form-hint{font-size:12px;color:var(--muted);margin:12px 0 0;line-height:1.7}
.form-ok{display:none;background:#e8f6ee;border:1px solid #b8e0c7;color:#1e6b3e;border-radius:6px;
  padding:10px 12px;font-size:13px;margin-bottom:14px}
.form-ok.show{display:block}

/* ---------- 页脚 ---------- */
.site-footer{background:#082538;color:#b8ced9;padding:38px 0 18px;font-size:13.5px}
.footer-grid{display:grid;gap:24px;grid-template-columns:1fr}
.site-footer h4{color:#fff;font-size:14px;margin-bottom:12px}
.site-footer .f-brand{font-size:16px;font-weight:700;color:#fff;margin-bottom:6px}
.site-footer .f-line{color:#9fbac7;margin-bottom:6px}
.site-footer a{color:#b8ced9}
.site-footer a:hover{color:#fff}
.footer-links{display:flex;flex-wrap:wrap;gap:8px 16px;margin-top:10px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:26px;padding-top:16px;
  display:flex;flex-direction:column;gap:8px;font-size:12.5px;color:#8fabb9}
.footer-bottom .f-links{display:flex;flex-wrap:wrap;gap:8px 14px}

/* ---------- 悬浮客服 ---------- */
.float-cs{position:fixed;right:14px;bottom:16px;z-index:90}
.float-cs .cs-btn{width:50px;height:50px;border-radius:50%;border:0;background:var(--teal);color:#fff;
  font-size:20px;box-shadow:0 8px 20px rgba(11,47,74,.28);cursor:pointer;margin-left:auto;display:flex;
  align-items:center;justify-content:center}
.float-cs .cs-btn:hover{background:var(--teal-2)}
.float-panel{display:none;background:#fff;border:1px solid var(--line);border-radius:10px;
  box-shadow:var(--shadow);padding:14px;width:238px;margin-bottom:10px}
.float-panel.open{display:block}
.float-panel b{color:var(--ink);font-size:13px}
.float-panel p{margin:6px 0 0;font-size:12.5px;color:var(--muted)}
.float-panel .cs-slogan{background:var(--soft);border-radius:6px;padding:8px 10px;font-size:12.5px;color:var(--navy);margin-top:8px}
.float-panel .btn{width:100%;margin-top:10px}

/* ---------- 内页 ---------- */
.page-hero{background:linear-gradient(120deg,#0e3a5f,#0d626d);color:#dcebf2;padding:34px 0 36px}
.page-hero h1{color:#fff;font-size:1.7rem;margin:8px 0 8px}
.page-hero p{color:#c2dbe5;margin:0;max-width:820px;font-size:14px}
.crumb{font-size:12.5px;color:#9fc3d0;margin-bottom:10px}
.crumb a{color:#9fc3d0}
.crumb a:hover{color:#fff}
.block{margin-bottom:30px}
.block h2{font-size:1.3rem;border-left:4px solid var(--teal);padding-left:12px;margin-bottom:14px}
.bullets{list-style:none;padding:0;margin:0;display:grid;gap:10px}
.bullets li{position:relative;padding-left:22px;color:var(--body);font-size:14px}
.bullets li::before{content:"";position:absolute;left:2px;top:9px;width:8px;height:8px;border-radius:2px;background:var(--teal)}
.two-col{display:grid;gap:16px;grid-template-columns:1fr}
.info-box{background:var(--bg);border:1px solid var(--line);border-radius:var(--radius);padding:18px}
.info-box h3{margin-top:0}
.kv-list{display:grid;gap:0;margin:0}
.kv-list div{display:flex;gap:12px;padding:10px 0;border-bottom:1px solid var(--line);font-size:14px}
.kv-list div:last-child{border-bottom:0}
.kv-list b{flex:0 0 88px;color:var(--ink)}
.cta-inline{background:var(--soft);border:1px solid #cfe0e6;border-radius:var(--radius);
  padding:22px;text-align:center}
.cta-inline h3{margin:0 0 6px}
.cta-inline p{color:var(--muted);font-size:14px;margin-bottom:14px}
.news-item{border-bottom:1px solid var(--line);padding:16px 0}
.news-item:first-child{border-top:1px solid var(--line)}
.news-item .meta{font-size:12.5px;color:var(--muted);display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.news-item .tag{background:var(--soft);color:var(--teal);padding:2px 8px;border-radius:4px;font-weight:700}
.news-item h3{margin:8px 0 6px;font-size:1rem}
.news-item p{margin:0;color:var(--muted);font-size:14px}
.news-item details{margin-top:8px}
.news-item summary{cursor:pointer;color:var(--teal);font-size:13px;font-weight:700}
.news-item .news-body{margin-top:10px;padding:12px 14px;background:var(--bg);border-radius:6px;font-size:14px;white-space:pre-line}
.dl-item{display:flex;gap:14px;align-items:center;border:1px solid var(--line);border-radius:var(--radius);
  padding:14px 16px;margin-bottom:10px;background:#fff;transition:border-color .2s ease,transform .2s ease}
.dl-item:hover{border-color:var(--teal);transform:translateY(-2px)}
.dl-item .pdf{width:42px;height:48px;flex:0 0 42px;border-radius:5px;background:#fdeceb;color:#c1443a;
  display:flex;align-items:center;justify-content:center;font-size:11px;font-weight:800}
.dl-item b{display:block;color:var(--ink)}
.dl-item small{color:var(--muted);font-size:12.5px}
.dl-item .arrow{margin-left:auto;color:var(--teal);font-weight:700;white-space:nowrap;font-size:13px}
.legal h2{font-size:1.15rem;margin-top:26px}
.legal h3{font-size:1rem;margin-top:20px}
.legal p,.legal li{font-size:14px;color:var(--body)}
.timeline{border-left:2px solid #cfe0e6;margin-left:8px;padding-left:22px}
.timeline .tl-item{position:relative;padding-bottom:20px}
.timeline .tl-item::before{content:"";position:absolute;left:-29px;top:6px;width:12px;height:12px;
  border-radius:50%;background:var(--teal);border:2px solid #fff}
.timeline .tl-item b{color:var(--ink);display:block}
.timeline .tl-item p{margin:2px 0 0;color:var(--muted);font-size:14px}

/* ---------- EMC 合同能源托管【主推】内页 ---------- */
.hl{background:linear-gradient(transparent 62%,rgba(14,124,134,.16) 62%);
  color:var(--teal);font-weight:800;padding:0 2px;-webkit-box-decoration-break:clone;box-decoration-break:clone}
.emc-hero .hl{background:none;color:#8ee6da;border-bottom:2px solid rgba(142,230,218,.55);padding:0}
.emc-hero h1 .sep{color:#7fb6c6;font-weight:400;margin:0 .12em}
.hero-btn-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.emc-slogan{display:inline-block;margin-top:22px;padding:9px 14px;border-radius:6px;
  background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.20);
  color:#dceef3;font-size:13px;font-weight:600}
.emc-section{padding-top:54px}
.emc-what{max-width:920px;font-size:15.5px;line-height:2.05}
.emc-what p{margin-bottom:14px}
.emc-what .hl{white-space:nowrap}
.emc-callout{margin-top:24px;background:var(--soft);border:1px solid #cfe0e6;
  border-left:4px solid var(--teal);border-radius:var(--radius);padding:18px 22px}
.emc-callout b{display:block;color:var(--teal);font-size:13px;letter-spacing:.08em;margin-bottom:6px}
.emc-callout b::before{content:"✓";display:inline-block;margin-right:8px;font-weight:800}
.emc-callout p{margin:0;font-size:16px;font-weight:700;color:var(--ink);line-height:1.8}
.emc-card.is-hl{border-color:#b6d9de;background:linear-gradient(180deg,#f5fbfc,#fff)}
.emc-card h3.hl{background:none;color:var(--teal);padding:0}

/* 流程：手机纵向步骤 / PC 横向时间线（可横向滚动） */
.steps{display:flex;flex-direction:column;gap:0;position:relative;margin-top:10px}
.steps::before{content:"";position:absolute;left:19px;top:16px;bottom:28px;width:2px;background:#cfe0e6}
.step{display:flex;gap:16px;position:relative;padding:0 0 22px}
.step:last-child{padding-bottom:2px}
.step-dot{flex:0 0 40px;height:40px;border-radius:50%;background:var(--teal);color:#fff;
  display:flex;align-items:center;justify-content:center;font-weight:800;font-size:15px;
  border:3px solid #fff;box-shadow:0 0 0 2px #cfe0e6}
.step-body{min-width:0;padding-top:4px}
.step-body b{display:block;color:var(--ink);font-size:15px;margin-bottom:4px}
.step-body p{margin:0;color:var(--muted);font-size:13.5px;line-height:1.8}
@media(min-width:900px){
  .steps{flex-direction:row;overflow-x:auto;gap:0;padding:8px 0 18px;
    scroll-snap-type:x proximity;scrollbar-color:#b9d3dc transparent}
  .steps::before{display:none}
  .step{flex:0 0 190px;flex-direction:column;gap:12px;padding:0 14px 0 0;scroll-snap-align:start}
  .step:last-child{padding-bottom:0}
  .step::before{content:"";position:absolute;left:40px;right:0;top:19px;height:2px;background:#cfe0e6;z-index:0}
  .step:last-child::before{right:14px}
  .step-dot{position:relative;z-index:1;width:40px;align-self:flex-start}
  .step-body{padding-top:0}
  .step-body b{font-size:14.5px}
  .step-body p{font-size:13px}
}

/* 权责 / 对比表格 */
.emc-table table{min-width:0}
.emc-table th,.emc-table td{padding:13px 14px;font-size:13.5px;line-height:1.8}
.emc-table .col-emc{background:#f1f9fa;color:var(--navy);font-weight:700}
.emc-table th.col-emc{background:#d8edef;color:var(--navy)}
.duty-us:not(:empty)::before{content:"· ";color:var(--teal);font-weight:800}
@media(min-width:720px){
  .emc-table table{min-width:560px}
  .emc-table th,.emc-table td{padding:14px 18px}
}

/* 常规合作说明 */
.numbered-list{display:grid;gap:12px;grid-template-columns:1fr;max-width:960px;margin:0 auto}
.num-item{display:flex;gap:16px;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius);padding:16px 18px}
.num-item .num{flex:0 0 34px;height:34px;border-radius:8px;background:var(--soft);color:var(--teal);
  display:flex;align-items:center;justify-content:center;font-weight:800;font-size:13px}
.num-item b{display:block;color:var(--ink);font-size:15px;margin-bottom:4px}
.num-item p{margin:0;color:var(--muted);font-size:14px;line-height:1.8}
.emc-note{max-width:960px;margin:18px auto 0;text-align:center}
.emc-scenes span{padding:11px 20px}
@media(min-width:900px){.numbered-list{grid-template-columns:repeat(2,1fr)}.emc-note{text-align:left}}

/* ---------- 照明运维托管【服务模式 03】内页 ---------- */
.check-list{list-style:none;padding:0;margin:0;display:grid;gap:12px;grid-template-columns:1fr}
.check-list li{display:flex;gap:12px;align-items:flex-start;background:#fff;
  border:1px solid var(--line);border-radius:var(--radius);padding:14px 16px;
  font-size:14.5px;line-height:1.85;color:var(--body)}
.check-list .ck{flex:0 0 22px;height:22px;margin-top:2px;border-radius:50%;
  background:var(--teal);color:#fff;font-size:13px;font-weight:800;
  display:flex;align-items:center;justify-content:center}
.ops-footnote{background:var(--soft);border:1px solid #cfe0e6;border-left:4px solid var(--teal);
  border-radius:var(--radius);padding:14px 18px;color:var(--muted)}
@media(min-width:900px){.check-list{grid-template-columns:repeat(2,1fr)}}

/* ---------- 渐入（仅滚动渐入 + hover，无花哨动画） ---------- */
html.js .reveal{opacity:0;transform:translateY(12px)}
html.js .reveal.in{opacity:1;transform:none;transition:opacity .5s ease,transform .5s ease}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  html.js .reveal{opacity:1;transform:none}
  .btn:hover,.card:hover,.dl-item:hover{transform:none}
}

/* ---------- 平板 / PC ---------- */
@media (min-width:720px){
  body{font-size:15.5px}
  .wrap{padding:0 26px}
  h1{font-size:2.3rem}h2{font-size:1.85rem}
  .section{padding:64px 0}
  .hamburger{display:none}
  .desktop-nav{display:block}
  .btn-nav{display:inline-flex}
  .header-in{height:70px}
  .brand img{height:40px}
  main{padding-top:70px}
  .hero-in{padding-top:76px;padding-bottom:80px;display:grid;grid-template-columns:1.35fr .8fr;gap:44px;align-items:center}
  .hero h1{font-size:2.35rem}
  .hero .lead{font-size:16px}
  .hero-side{margin-top:0}
  .grid.g2,.grid.g3,.grid.g4{grid-template-columns:repeat(2,1fr)}
  .grid.g4{grid-template-columns:repeat(2,1fr)}
  .num-list{grid-template-columns:repeat(2,1fr)}
  .photo-grid{grid-template-columns:repeat(2,1fr)}
  .logo-wall{grid-template-columns:repeat(3,1fr)}
  .cert-grid{grid-template-columns:repeat(4,1fr)}
  .form-grid{grid-template-columns:repeat(2,1fr)}
  .form-grid .full{grid-column:1/-1}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr}
  .footer-bottom{flex-direction:row;justify-content:space-between;align-items:center}
  .two-col{grid-template-columns:1fr 1fr}
  .page-hero{padding:48px 0 52px}
  .page-hero h1{font-size:2.05rem}
  .lead-section{padding:64px 0}
  .lead-card{padding:28px 32px}
}
@media (min-width:1040px){
  .grid.g3{grid-template-columns:repeat(3,1fr)}
  .grid.g4{grid-template-columns:repeat(4,1fr)}
  .num-list{grid-template-columns:repeat(3,1fr)}
  .logo-wall{grid-template-columns:repeat(6,1fr)}
}

/* ---------- 自研系统 / 软件著作权卖点（全站统一） ---------- */
.rd-badge{display:inline-flex;align-items:center;gap:6px;background:#e3f3f2;
  border:1px solid #b6dcd9;color:var(--teal);font-size:12.5px;font-weight:700;
  padding:5px 12px;border-radius:20px;line-height:1.6}
.rd-ico{flex:0 0 auto;display:block}
.rd-slogan{display:inline-block;font-size:15px;font-weight:800;color:var(--teal);
  letter-spacing:.02em;margin:0}
.rd-section{background:linear-gradient(120deg,#f1f8f9 0%,#e9f2f5 100%);
  border-top:1px solid #dcebee;border-bottom:1px solid #dcebee}
.rd-badge-row{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;
  gap:10px 16px;margin:-4px 0 24px}
.rd-grid{display:grid;gap:18px;grid-template-columns:1fr;align-items:start}
.rd-points li{background:#fff}
.rd-shots{display:grid;gap:12px;grid-template-columns:1fr}
.rd-shot{aspect-ratio:auto;min-height:132px;gap:4px;padding:12px;text-align:center}
.rd-shot .ph-ico{font-size:24px}
.rd-shot b{font-size:13px;color:var(--ink);font-weight:700}
.rd-cert-shot{display:flex;flex-direction:row;align-items:center;gap:12px;text-align:left;
  border-style:solid;border-color:#bcdcdc;background:#fff;padding:12px;cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease}
.rd-cert-shot:hover{transform:translateY(-2px);box-shadow:var(--shadow)}
.rd-cert-thumb{flex:0 0 78px;height:112px;background:#fff;border:1px solid var(--line);
  border-radius:6px;overflow:hidden;display:flex;align-items:center;justify-content:center}
.rd-cert-thumb img{width:100%;height:100%;object-fit:contain}
.rd-cert-txt{display:flex;flex-direction:column;gap:4px;min-width:0}
.rd-cert-txt b{font-size:13.5px}
.rd-cert-txt small{font-size:11.5px;color:#8b9ba4;line-height:1.5}
.rd-cert-meta{font-size:11px;color:#8b9ba4;line-height:1.5;text-align:left}
.rd-cert-meta i{font-style:normal;font-weight:700;color:#3d5666}
.rd-cert-txt em{font-style:normal;font-size:12px;color:var(--teal);font-weight:700;margin-top:2px}
.rd-img-shot{display:flex;flex-direction:column;gap:8px;padding:10px;text-align:left;
  border-style:solid;border-color:#bcdcdc;background:#fff;cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease}
.rd-img-shot:hover{transform:translateY(-2px);box-shadow:var(--shadow)}
.rd-img-shot img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:6px;
  border:1px solid var(--line);display:block;background:#0b2734}
.rd-img-shot b{font-size:13px;color:var(--ink);font-weight:700}
.rd-img-shot small{font-size:11.5px;color:#8b9ba4;line-height:1.5}
.rd-certline{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:8px 10px;
  margin:20px auto 0;padding:14px 18px;max-width:1050px;background:rgba(255,255,255,.72);
  border:1px solid #d7e9ea;border-radius:10px}
.rd-certline b{font-size:12.5px;color:var(--navy);background:#e2f1f2;border-radius:20px;padding:5px 12px}
.rd-certline span{font-size:12px;color:var(--muted);background:#fff;border:1px solid #e0eef0;
  border-radius:6px;padding:5px 10px}
.rd-certline i{font-style:normal;font-weight:700;color:var(--ink)}
.rd-note{max-width:980px;margin:22px auto 0;text-align:center;line-height:1.85}
.section.rd-inline-sec{padding:26px 0}
.rd-inline{background:linear-gradient(110deg,#f2f9f9,#eaf3f5);
  border:1px solid #cfe4e5;border-left:4px solid var(--teal);
  border-radius:var(--radius);padding:20px 24px;margin-bottom:26px}
.rd-inline h3{margin:12px 0 6px;font-size:1.1rem;color:var(--ink)}
.rd-inline p{margin:0 0 10px;color:var(--body);font-size:14.5px;line-height:1.85}
.rd-inline .rd-link{font-size:13.5px;font-weight:700;color:var(--teal)}
.section.rd-intro-sec{padding:38px 0}
.rd-intro{background:linear-gradient(115deg,#f1f8f9,#eaf3f5);
  border:1px solid #d3e6e8;border-left:4px solid var(--teal);
  border-radius:var(--radius);padding:26px 28px}
.rd-intro h2{font-size:1.4rem;margin:14px 0 10px}
.rd-intro p{color:var(--body);font-size:15px;line-height:1.9}
.rd-features{justify-content:flex-start;margin:16px 0}
.rd-features span{background:#fff;font-size:13px;padding:7px 13px}
.rd-intro .rd-slogan{display:block;margin:18px 0 6px}
.rd-intro .rd-note,.rd-inline .rd-note{text-align:left;margin:0}
@media(min-width:900px){
  .rd-grid{grid-template-columns:1fr;gap:20px}
  .rd-shots{grid-template-columns:repeat(3,1fr)}
  .rd-shot{min-height:158px}
  .rd-inline{padding:22px 30px}
}
@media(max-width:520px){
  .rd-shot{min-height:124px}
  .rd-certline{justify-content:flex-start;padding:12px}
  .rd-cert-thumb{flex-basis:66px;height:96px}
  .rd-badge-row{gap:10px}
  .rd-inline,.rd-intro{padding:18px}
}

/* ===== 政策导向页 ===== */
.policy-intro{color:var(--body);font-size:15px;line-height:1.9;margin:0 0 10px;max-width:900px}
.policy-grid{display:grid;gap:16px;grid-template-columns:1fr;margin-top:22px}
.policy-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:20px 22px;transition:transform .2s ease,box-shadow .2s ease}
.policy-card:hover{transform:translateY(-2px);box-shadow:var(--shadow)}
.pc-head{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:8px}
.pc-level{font-size:12px;font-weight:700;color:var(--teal);background:#e2f1f2;
  border-radius:20px;padding:4px 12px;white-space:nowrap}
.pc-head time{font-size:12.5px;color:#8b9ba4}
.policy-card h3{margin:0 0 6px;font-size:1.02rem;color:var(--ink);line-height:1.5}
.pc-org{font-size:12.5px;color:#8b9ba4;margin:0 0 8px}
.pc-sum{font-size:14px;color:var(--body);line-height:1.85;margin:0 0 12px}
.pc-link{font-size:13.5px;font-weight:700;color:var(--teal);text-decoration:none}
.pc-link:hover{text-decoration:underline}
.policy-legal{max-width:920px;text-align:left;line-height:1.85;margin-top:22px}
.news-policy-strip{display:flex;flex-wrap:wrap;align-items:center;gap:8px 14px;
  background:#eef7f8;border:1px solid #cfe4e5;border-left:4px solid var(--teal);
  border-radius:var(--radius);padding:16px 20px;margin-top:26px;text-decoration:none}
.news-policy-strip b{color:var(--navy);font-size:14.5px;white-space:nowrap}
.news-policy-strip span{color:var(--body);font-size:13.5px;line-height:1.6}
.news-policy-strip:hover{box-shadow:var(--shadow)}
.emc-policy-link{display:inline-block;margin-top:14px;font-size:14px;font-weight:700;
  color:var(--teal);text-decoration:none}
.emc-policy-link:hover{text-decoration:underline}

/* ===== EMC 两种合作模式 ===== */
.alt-bg{background:linear-gradient(120deg,#f1f8f9 0%,#e9f2f5 100%)}
.mode-intro{color:var(--body);font-size:14.5px;line-height:1.9;margin:0 0 18px;max-width:900px}
.mode-grid{display:grid;gap:16px;grid-template-columns:1fr}
.mode-card{background:#fff;border:1px solid #cfe4e5;border-top:3px solid var(--teal);
  border-radius:var(--radius);padding:22px 24px}
.mode-card h3{margin:0 0 4px;font-size:1.08rem;color:var(--ink)}
.mode-official{font-size:13px;color:var(--teal);font-weight:700;margin:0 0 10px}
.mode-invest{display:inline-block;font-size:12.5px;font-weight:700;color:var(--navy);
  background:#eef3f8;border-radius:6px;padding:4px 10px;margin:0 0 12px}
.mode-brief{font-size:14px;color:var(--body);line-height:1.9;margin:0 0 12px}
.mode-forwho{font-size:13px;color:var(--muted);line-height:1.8;margin:0}
.mode-forwho b{color:var(--ink)}
@media(min-width:900px){
  .policy-grid{grid-template-columns:repeat(2,1fr)}
  .mode-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:520px){
  .policy-card{padding:16px}
  .mode-card{padding:16px 18px}
}

/* ---------- 自有项目业绩 ---------- */
.own-strip{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
  background:linear-gradient(120deg,#0b2f4a,#0d626d);border-radius:var(--radius);
  padding:16px 20px;margin-bottom:20px}
.own-strip-txt{flex:1 1 300px;min-width:0}
.own-strip-txt p{margin:7px 0 0;font-size:13px;color:#c8dfe8;line-height:1.7}
.own-badge{display:inline-block;background:rgba(255,255,255,.14);
  border:1px solid rgba(255,255,255,.26);color:#fff;font-size:12px;font-weight:700;
  letter-spacing:.04em;padding:4px 10px;border-radius:4px}
.own-strip .btn{background:#fff;color:var(--teal)}
.own-strip .btn:hover{background:var(--soft);color:var(--navy)}
.own-stats{display:grid;gap:12px;grid-template-columns:repeat(2,1fr)}
.own-stat{background:#fff;border:1px solid var(--line);border-left:3px solid var(--teal);
  border-radius:8px;padding:14px 16px}
.own-stat b{display:block;font-size:1.65rem;line-height:1.15;color:var(--teal);font-weight:800}
.own-stat b small{font-size:14px;margin-left:4px;font-weight:700}
.own-stat span{display:block;margin-top:7px;font-size:12.5px;color:var(--muted);line-height:1.65}
.own-facts{display:grid;gap:10px;grid-template-columns:1fr;margin-bottom:26px}
.own-facts>div{background:var(--soft);border:1px solid var(--line);border-radius:8px;padding:12px 15px}
.own-facts b{display:block;font-size:11.5px;color:var(--teal);letter-spacing:.08em;margin-bottom:4px}
.own-facts span{display:block;font-size:13.5px;color:var(--ink);line-height:1.65}
.own-gallery{display:grid;gap:12px;grid-template-columns:repeat(2,1fr)}
.own-photo{margin:0;border:1px solid var(--line);border-radius:8px;overflow:hidden;background:#fff}
.own-photo img{width:100%;height:130px;object-fit:cover;display:block}
.own-photo figcaption{padding:8px 10px;font-size:12px;color:var(--muted);
  background:#fff;border-top:1px solid var(--line)}
.own-callout{margin-top:14px;background:#fff;border:1px dashed #bcd3dc;
  border-radius:8px;padding:12px 15px;font-size:13.5px}
@media(min-width:700px){
  .own-gallery{grid-template-columns:repeat(4,1fr)}
  .own-photo img{height:148px}
}
@media(min-width:900px){
  .own-stats{grid-template-columns:repeat(4,1fr)}
  .own-facts{grid-template-columns:repeat(3,1fr)}
  .own-stat b{font-size:2rem}
}

/* ---------- FAQ 常见问题 ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px;margin-top:18px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.faq-item summary{display:flex;align-items:center;gap:12px;padding:16px 18px;cursor:pointer;
  font-weight:700;font-size:1.02rem;line-height:1.5;list-style:none;user-select:none}
.faq-item summary::-webkit-details-marker{display:none}
.faq-q{flex:0 0 auto;width:26px;height:26px;border-radius:7px;display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--blue),var(--teal));color:#fff;font-size:.85rem;font-weight:800}
.faq-item summary .faq-t{margin-left:auto;flex:0 0 auto;width:9px;height:9px;position:relative;transform:rotate(45deg)}
.faq-item summary .faq-t::before,.faq-item summary .faq-t::after{content:"";position:absolute;background:var(--muted);border-radius:2px}
.faq-item summary .faq-t::before{left:0;top:3.5px;width:9px;height:2px}
.faq-item summary .faq-t::after{left:3.5px;top:0;width:2px;height:9px}
.faq-item[open] summary .faq-t{transform:rotate(-135deg)}
.faq-item[open] summary{border-bottom:1px dashed var(--line)}
.faq-a{display:flex;gap:12px;padding:14px 18px 16px;background:var(--bg,#f6f9fb)}
.faq-a-tag{flex:0 0 auto;width:26px;height:26px;border-radius:7px;display:inline-flex;align-items:center;justify-content:center;
  background:#e8f4f6;color:var(--teal);font-size:.8rem;font-weight:800}
.faq-a p{margin:2px 0 0;font-size:.94rem;line-height:1.85;color:#3d5666}