:root{
  --red:#E60012;--red-dark:#B8000E;--red-light:#FFF0F0;
  --ink:#1F2329;--ink-2:#4E5561;--ink-3:#8A919E;
  --bg:#FFFFFF;--bg-soft:#F7F8FA;--line:#E9EBEF;
  --radius:14px;--maxw:1200px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;color:var(--ink);background:var(--bg);line-height:1.7;font-size:16px}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul{list-style:none}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
section{padding:72px 0}
.sec-head{text-align:center;margin-bottom:44px}
.sec-head .kicker{display:inline-block;color:var(--red);font-size:14px;letter-spacing:4px;margin-bottom:8px;font-weight:600}
.sec-head h2{font-size:32px;font-weight:700;letter-spacing:1px}
.sec-head p{color:var(--ink-3);margin-top:10px;font-size:15px}
.btn{display:inline-flex;align-items:center;gap:8px;padding:13px 30px;border-radius:8px;font-size:16px;font-weight:600;transition:.2s;cursor:pointer;border:none}
.btn-red{background:var(--red);color:#fff}
.btn-red:hover{background:var(--red-dark)}
.art-body a.btn-red{color:#fff;border-bottom:none}
.btn-ghost{border:1.5px solid rgba(255,255,255,.7);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.12)}

/* topbar */
.topbar{background:var(--ink);color:#cfd4dc;font-size:13px;padding:7px 0}
.topbar .wrap{display:flex;justify-content:center;align-items:center;gap:12px}
.topbar b{color:#fff;font-weight:600}

/* header */
.header{position:sticky;top:0;z-index:100;background:#fff;border-bottom:1px solid var(--line);box-shadow:0 2px 12px rgba(0,0,0,.04)}
.nav{display:flex;align-items:center;justify-content:space-between;height:72px}
.brand{display:flex;align-items:center;gap:12px}
.brand img{height:44px}
.brand .name{font-size:18px;font-weight:700;line-height:1.25}
.brand .name small{display:block;font-size:10.5px;color:var(--ink-3);letter-spacing:2.5px;font-weight:400}
.menu{display:flex;gap:18px}
.menu a{font-size:14px;color:var(--ink-2);font-weight:500;padding:6px 0;border-bottom:2px solid transparent}
.menu a:hover{color:var(--red);border-color:var(--red)}
.nav-phone{text-align:right;line-height:1.3}
.nav-phone .lab{font-size:12px;color:var(--ink-3)}
.nav-phone .num{font-size:19px;font-weight:700;color:var(--red);font-family:Arial,sans-serif}

/* hero */
.hero{background:linear-gradient(135deg,rgba(148,0,10,.93) 0%,rgba(212,0,17,.88) 55%,rgba(228,20,40,.84) 100%),url(office_gate.jpg) center 26%/cover no-repeat;color:#fff;padding:88px 0 96px;position:relative;overflow:hidden}
.hero::before{content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;border-radius:50%;background:rgba(255,255,255,.06)}
.hero::after{content:"";position:absolute;right:120px;bottom:-160px;width:300px;height:300px;border-radius:50%;background:rgba(255,255,255,.05)}
.hero .wrap{position:relative;z-index:2}
.hero .tag{display:inline-block;border:1px solid rgba(255,255,255,.55);padding:5px 16px;border-radius:99px;font-size:14px;letter-spacing:3px;margin-bottom:22px}
.hero h1{font-size:44px;line-height:1.25;font-weight:700;max-width:720px}
.hero h1 span{color:#FFE08A}
.hero .sub{margin-top:18px;font-size:18px;opacity:.95;max-width:640px}
.hero .meta{display:flex;gap:34px;margin-top:26px;font-size:15px;opacity:.95;flex-wrap:wrap}
.hero .meta div::before{content:"✓";margin-right:8px;font-weight:700}
.hero .cta{margin-top:36px;display:flex;gap:16px;flex-wrap:wrap;align-items:center}
.hero .hot{font-size:15px;opacity:.95}
.hero .hot b{font-size:26px;font-family:Arial;letter-spacing:1px}

/* GEO: entity profile */
.profile{padding:64px 0}
.toc{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:26px}
.toc a{font-size:13.5px;color:var(--ink-2);background:#fff;border:1px solid var(--line);border-radius:99px;padding:6px 15px}
.toc a:hover{color:var(--red);border-color:#F3B9BE;background:var(--red-light)}
.entity-card{border:1px solid var(--line);border-left:4px solid var(--red);border-radius:12px;background:#fff;padding:30px 32px}
.entity-card h2{font-size:23px;margin-bottom:6px}
.entity-card .kick{font-size:12.5px;color:var(--ink-3);letter-spacing:1.5px;text-transform:uppercase;margin-bottom:16px}
.entity-def{font-size:16.5px;line-height:1.9;color:var(--ink)}
.entity-def b{color:var(--red)}
.entity-facts{display:grid;grid-template-columns:repeat(4,1fr);gap:16px 26px;margin-top:24px;padding-top:22px;border-top:1px dashed var(--line)}
.entity-facts dt{font-size:12.5px;color:var(--ink-3);margin-bottom:2px}
.entity-facts dd{font-size:14.5px;font-weight:600;line-height:1.55}
.entity-facts dd small{font-weight:400;color:var(--ink-3);font-size:12.5px}
.facts-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:18px;margin-top:24px;text-align:center;background:var(--bg-soft);border-radius:12px;padding:26px 16px}
.facts-grid .n{font-size:30px;font-weight:700;color:var(--red);font-family:Arial;line-height:1.1}
.facts-grid .n small{font-size:14px;font-weight:500;margin-left:2px;font-family:inherit}
.facts-grid .l{font-size:13.5px;color:var(--ink-2);margin-top:6px}

/* special services */
.special{background:var(--bg-soft);padding:0 0 72px}
.spec-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.spec-card{background:#fff;border:1px solid var(--line);border-radius:12px;padding:22px 20px;transition:.2s}
.spec-card:hover{border-color:#F5C6C9;box-shadow:0 10px 24px rgba(230,0,18,.07)}
.spec-card h3{font-size:16.5px;margin-bottom:9px}
.spec-card h3 span{display:block;font-size:11px;color:var(--ink-3);font-weight:400;letter-spacing:1px;margin-top:3px;text-transform:uppercase}
.spec-card p{font-size:13.5px;color:var(--ink-2);line-height:1.78}
.spec-card p.use{margin-top:10px;padding-top:10px;border-top:1px dashed var(--line);font-size:13px;color:var(--ink-3)}

/* price table */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:12px;background:#fff;margin-top:6px}
.price-table{width:100%;border-collapse:collapse;min-width:740px}
.price-table th,.price-table td{padding:13px 16px;text-align:left;font-size:14.5px;border-bottom:1px solid var(--line);vertical-align:top}
.price-table thead th{background:var(--bg-soft);font-size:14px;color:var(--ink-2);font-weight:600;white-space:nowrap}
.price-table tbody tr:last-child td{border-bottom:none}
.price-table td:nth-child(3){color:var(--red);font-weight:600;white-space:nowrap}
.price-table td:nth-child(2){color:var(--ink-2);font-size:13.5px;white-space:nowrap}
.table-note{margin-top:18px;font-size:13.5px;line-height:1.8;color:var(--ink-2);background:var(--red-light);border-radius:10px;padding:16px 20px}
.table-note b{color:var(--red)}

/* areas */
.area-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.area-card{background:#fff;border:1px solid var(--line);border-radius:12px;padding:24px}
.area-card h3{font-size:17px;margin-bottom:14px}
.area-card h3 span{font-size:12.5px;color:var(--ink-3);font-weight:400;margin-left:6px}
.area-tags{display:flex;flex-wrap:wrap;gap:8px}
.area-tags span{font-size:13.5px;color:var(--ink-2);background:var(--bg-soft);border:1px solid var(--line);border-radius:6px;padding:4px 11px}
.area-card p{margin-top:15px;font-size:13.5px;color:var(--ink-3);line-height:1.75}

/* client category */
.cl-block{margin-top:34px;padding-top:30px;border-top:1px dashed var(--line)}
.cl-block h3{font-size:19px;margin-bottom:6px}
.cl-block .cl-sub{font-size:13.5px;color:var(--ink-3);margin-bottom:20px}
.cl-count{display:inline-block;background:var(--red-light);color:var(--red);font-size:12px;font-weight:600;border-radius:99px;padding:2px 10px;margin-left:8px;font-family:Arial;vertical-align:middle}
.cl-total{margin-top:22px;font-size:14px;color:var(--ink-2);text-align:center}
.cl-total b{color:var(--red);font-size:17px;font-family:Arial}
.cl-note{margin-top:14px;font-size:12.5px;color:var(--ink-3);line-height:1.85;background:var(--bg-soft);border:1px solid var(--line);border-radius:10px;padding:14px 18px}
.cl-note b{color:var(--red)}

/* gallery */
.gallery-sec{background:var(--bg-soft)}
.gal-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.gal-item{margin:0;background:#fff;border-radius:12px;overflow:hidden;border:1px solid var(--line);box-shadow:0 2px 10px rgba(0,0,0,.05)}
.gal-item img{width:100%;aspect-ratio:4/3;object-fit:cover;display:block;cursor:zoom-in;transition:transform .35s}
.gal-item:hover img{transform:scale(1.045)}
.gal-item figcaption{padding:10px 14px;font-size:13px;color:var(--ink-2);border-top:1px solid var(--line)}
.gal-wide{grid-column:span 2}
.gal-wide img{aspect-ratio:2.05/1}

/* faq groups */
.faq-group{font-size:15.5px;font-weight:600;color:var(--red);margin:30px 0 12px;padding-left:14px;border-left:3px solid var(--red);scroll-margin-top:96px}
.faq-group:first-child{margin-top:0}
.faq-owner{font-size:12.5px;color:var(--ink-3);font-weight:400;margin-left:8px}
section[id]{scroll-margin-top:84px}

/* about */
.about-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:52px;align-items:start}
.about-grid h3{font-size:24px;margin-bottom:14px}
.about-grid .lead{color:var(--ink-2);margin-bottom:14px}
.about-grid .lead b{color:var(--red)}
.timeline{border-left:2px solid var(--red-light);padding-left:26px;position:relative}
.timeline::before{content:"";position:absolute;left:-7px;top:6px;width:12px;height:12px;border-radius:50%;background:var(--red)}
.tl-item{position:relative;padding-bottom:26px}
.tl-item::before{content:"";position:absolute;left:-33px;top:8px;width:10px;height:10px;border-radius:50%;background:#fff;border:2.5px solid var(--red)}
.tl-item .yr{font-family:Arial;font-weight:700;color:var(--red);font-size:18px}
.tl-item h4{font-size:16.5px;margin:2px 0 4px}
.tl-item p{color:var(--ink-2);font-size:14.5px}

/* services */
.services{background:var(--bg-soft)}
.svc-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.svc-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:32px 30px;transition:.25s}
.svc-card:hover{transform:translateY(-4px);box-shadow:0 14px 34px rgba(230,0,18,.09);border-color:#F5C6C9}
.svc-card .no{display:inline-block;background:var(--red-light);color:var(--red);font-family:Arial;font-weight:700;font-size:14px;padding:3px 12px;border-radius:6px;margin-bottom:14px}
.svc-card h3{font-size:21px;margin-bottom:4px}
.svc-card .en{font-size:12px;letter-spacing:2px;color:var(--ink-3);text-transform:uppercase;margin-bottom:14px}
.svc-card p.desc{color:var(--ink-2);font-size:14.5px;margin-bottom:14px}
.svc-card ul{display:grid;grid-template-columns:1fr 1fr;gap:7px}
.svc-card li{font-size:14px;color:var(--ink-2);padding-left:16px;position:relative}
.svc-card li::before{content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:50%;background:var(--red)}
.svc-card .en-red{color:var(--red)}
.svc-card li a{color:var(--ink-2);transition:color .2s}
.svc-card li a:hover{color:var(--red)}

/* process */
.proc-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:14px;counter-reset:step}
.proc{background:#fff;border:1px solid var(--line);border-radius:12px;padding:24px 14px;text-align:center;position:relative;transition:.2s}
.proc:hover{border-color:var(--red);box-shadow:0 8px 20px rgba(230,0,18,.08)}
.proc .ic{width:46px;height:46px;margin:0 auto 12px;border-radius:50%;background:var(--red-light);color:var(--red);font-family:Arial;font-weight:700;font-size:19px;display:flex;align-items:center;justify-content:center}
.proc h4{font-size:15.5px;margin-bottom:5px}
.proc p{font-size:12.5px;color:var(--ink-3);line-height:1.55}

/* cases */
.cases{background:var(--bg-soft)}
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.case{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:.2s}
.case:hover{transform:translateY(-4px);box-shadow:0 12px 28px rgba(0,0,0,.07)}
.case .ph{height:150px;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#2A2F3A,#3C4350);color:#fff;font-size:20px;font-weight:700;letter-spacing:2px}
.case .ph small{display:block;text-align:center;font-size:11px;font-weight:400;opacity:.65;letter-spacing:1px;margin-top:4px}
.case .bd{padding:18px 20px 22px}
.case .bd .cat{color:var(--red);font-size:12.5px;font-weight:600;letter-spacing:1px}
.case .bd h4{font-size:17px;margin:4px 0 6px}
.case .bd p{font-size:13.5px;color:var(--ink-2)}
.case-note{margin-top:26px;text-align:center;color:var(--ink-3);font-size:14px}

/* cert wall */
.cert-wall{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.cert-card{background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden;transition:.2s;margin:0}
.cert-card:hover{transform:translateY(-4px);box-shadow:0 12px 28px rgba(0,0,0,.09);border-color:#F5C6C9}
.cert-card img{width:100%;aspect-ratio:4/3;object-fit:cover;cursor:zoom-in;background:var(--bg-soft)}
.cert-card figcaption{padding:14px 16px 16px}
.cert-card h4{font-size:15.5px;margin-bottom:3px}
.cert-card figcaption p{font-size:12.5px;color:var(--ink-3)}

/* faq */
.faq{background:var(--bg-soft)}
.faq-list{max-width:880px;margin:0 auto}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:12px;margin-bottom:12px;overflow:hidden}
.faq-item summary{cursor:pointer;padding:18px 52px 18px 22px;font-size:16px;font-weight:600;position:relative;list-style:none}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";position:absolute;right:20px;top:50%;transform:translateY(-50%);font-size:22px;color:var(--red);font-family:Arial;transition:.2s}
.faq-item[open] summary::after{transform:translateY(-50%) rotate(45deg)}
.faq-item .ans{padding:0 22px 20px;color:var(--ink-2);font-size:15px}
.faq-item .ans b{color:var(--red)}

/* contact */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:start}
.c-info .row{display:flex;gap:14px;margin-bottom:22px;align-items:flex-start}
.c-info .row .ic{flex:0 0 44px;height:44px;border-radius:10px;background:var(--red-light);display:flex;align-items:center;justify-content:center;color:var(--red);font-size:19px;font-weight:700}
.c-info .row h4{font-size:15px;color:var(--ink-3);font-weight:500}
.c-info .row p{font-size:17px;font-weight:600}
.c-info .row p small{font-weight:400;color:var(--ink-3);font-size:13px;display:block}
.qr-slot{border:1.5px dashed #E5B7BA;border-radius:12px;padding:18px;background:var(--red-light);display:flex;gap:16px;align-items:center;margin-top:26px}
.qr-slot p{font-size:14px;color:var(--ink-2)}
.qr-slot p b{color:var(--ink)}
.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px;box-shadow:0 10px 30px rgba(0,0,0,.05)}
.form-card h3{font-size:20px;margin-bottom:4px}
.form-card .tip{font-size:13.5px;color:var(--ink-3);margin-bottom:18px}
.f-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.form-card label{display:block;font-size:13.5px;font-weight:600;margin:12px 0 6px}
.form-card label i{color:var(--red);font-style:normal}
.form-card input,.form-card select,.form-card textarea{width:100%;border:1.5px solid var(--line);border-radius:8px;padding:11px 13px;font-size:15px;font-family:inherit;transition:.15s;background:var(--bg-soft)}
.form-card input:focus,.form-card select:focus,.form-card textarea:focus{outline:none;border-color:var(--red);background:#fff}
.form-card button{width:100%;margin-top:18px}
.form-note{font-size:12px;color:var(--ink-3);text-align:center;margin-top:10px}
.form-status{display:none;font-size:13.5px;line-height:1.7;margin:14px 0 0;padding:11px 14px;border-radius:8px;border:1px solid transparent}
.form-status.ok,.form-status.err{display:block}
.form-status.ok{background:#EDF7F1;border-color:#B7E0C6;color:#0F7A46}
.form-status.err{background:#FDF2F3;border-color:#F3B9BE;color:#B3121F}
.hp-field{position:absolute!important;left:-9999px!important;top:0!important;width:1px!important;height:1px!important;padding:0!important;border:0!important;opacity:0!important;pointer-events:none!important}
.form-card button[disabled]{opacity:.65;cursor:default}

/* footer */
.footer{background:#171A20;color:#9AA1AC;padding:52px 0 0;font-size:14px}
.f-grid{display:grid;grid-template-columns:1.4fr 1fr .9fr 1.1fr;gap:38px;padding-bottom:36px}
.footer h5{color:#fff;font-size:15.5px;margin-bottom:14px}
.footer li{margin-bottom:8px}
.footer a:hover{color:#fff}
.f-logo{height:40px;margin-bottom:14px}
.f-bottom{border-top:1px solid #2A2F38;padding:18px 0;text-align:center;font-size:12.5px;color:#6B7280}
.f-bottom p{margin:3px 0}

/* float bar */
.float-bar{position:fixed;right:18px;bottom:22px;z-index:200;display:flex;flex-direction:column;gap:10px}
.float-bar a{width:52px;height:52px;border-radius:50%;background:var(--red);color:#fff;display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700;text-align:center;box-shadow:0 6px 18px rgba(230,0,18,.35);line-height:1.25}
.float-bar a.top{background:#fff;color:var(--ink);border:1px solid var(--line);box-shadow:0 6px 18px rgba(0,0,0,.12)}

@media(max-width:960px){
  .menu{display:none}
  .hero h1{font-size:31px}
  .hero{padding:60px 0 68px}
  .about-grid,.contact-grid,.svc-grid,.case-grid{grid-template-columns:1fr}
  .gal-grid{grid-template-columns:1fr 1fr}
  .facts-grid{grid-template-columns:repeat(3,1fr)}
  .entity-facts{grid-template-columns:1fr 1fr}
  .area-grid{grid-template-columns:1fr}
  .spec-grid{grid-template-columns:repeat(2,1fr)}
  .entity-card{padding:22px 20px}
  .proc-grid{grid-template-columns:repeat(3,1fr)}
  .cert-wall{grid-template-columns:1fr 1fr}
  .f-grid{grid-template-columns:1fr;gap:28px}
  section{padding:52px 0}
  .sec-head h2{font-size:25px}
  .f-row{grid-template-columns:1fr}
  .nav-phone .lab{display:none}
  .brand .name small{display:none}
}
@media(max-width:600px){
  .gal-grid{grid-template-columns:1fr}
  .gal-wide{grid-column:span 1}
  .facts-grid{grid-template-columns:repeat(2,1fr);padding:20px 12px;gap:16px 10px}
  .facts-grid .n{font-size:25px}
  .entity-facts{grid-template-columns:1fr}
  .entity-def{font-size:15.5px}
  .entity-card h2{font-size:20px}
  .hero h1{font-size:26px}
  .hero .sub{font-size:16px}
  .area-card{padding:20px 18px}
}

/* ============ 专业指南：面包屑 ============ */
.crumb{font-size:13px;color:var(--ink-3);padding-top:20px}
.crumb a{color:var(--ink-2)}
.crumb a:hover{color:var(--red)}
.crumb i{font-style:normal;margin:0 7px;color:#C6CBD3}

/* ============ 专业指南：页头 ============ */
.art-hero{background:var(--bg-soft);border-bottom:1px solid var(--line);padding-bottom:40px}
.art-hero .tagline{display:inline-block;background:var(--red-light);color:var(--red);font-size:12.5px;font-weight:600;letter-spacing:1.2px;border-radius:6px;padding:5px 13px;margin:20px 0 14px}
.art-hero h1{font-size:33px;line-height:1.38;font-weight:700;max-width:900px}
.art-hero .lede{margin-top:16px;font-size:16.5px;color:var(--ink-2);max-width:880px;line-height:1.85}
.art-meta{display:flex;flex-wrap:wrap;gap:8px 24px;margin-top:20px;font-size:13px;color:var(--ink-3)}
.art-meta b{color:var(--ink-2);font-weight:500}

/* ============ 专业指南：正文布局 ============ */
.art-layout{display:grid;grid-template-columns:minmax(0,1fr) 268px;gap:48px;align-items:start;padding-top:46px}
.art-body{font-size:16px;line-height:1.95;color:var(--ink-2)}
.art-body h2{font-size:22.5px;color:var(--ink);font-weight:700;margin:40px 0 14px;padding-left:14px;border-left:4px solid var(--red);line-height:1.45;scroll-margin-top:96px}
.art-body h2:first-child{margin-top:0}
.art-body h3{font-size:17.5px;color:var(--ink);font-weight:700;margin:26px 0 10px}
.art-body p{margin-bottom:14px}
.art-body b,.art-body strong{color:var(--ink)}
.art-body a{color:var(--red);border-bottom:1px solid rgba(230,0,18,.3)}
.art-body ul{margin:0 0 16px}
.art-body ul li{position:relative;padding-left:18px;margin-bottom:8px}
.art-body ul li::before{content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:50%;background:var(--red)}
.art-body ol{counter-reset:n;margin:0 0 16px}
.art-body ol li{position:relative;padding-left:36px;margin-bottom:11px;counter-increment:n}
.art-body ol li::before{content:counter(n);position:absolute;left:0;top:4px;width:23px;height:23px;border-radius:50%;background:var(--red-light);color:var(--red);font-family:Arial;font-size:13px;font-weight:700;display:flex;align-items:center;justify-content:center}

/* ============ 专业指南：表格与提示块 ============ */
.art-tbl-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:10px;margin:8px 0 20px;background:#fff}
.art-table{width:100%;border-collapse:collapse;font-size:14.5px;min-width:560px}
.art-table th,.art-table td{padding:11px 14px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.art-table thead th{background:var(--bg-soft);font-size:13.5px;color:var(--ink-2);font-weight:600;white-space:nowrap}
.art-table tbody tr:last-child td{border-bottom:none}
.art-table td:first-child{font-weight:600;color:var(--ink)}
.art-note{background:var(--red-light);border-radius:10px;padding:16px 20px;font-size:14.5px;line-height:1.85;margin:8px 0 20px}
.art-note b{color:var(--red)}
.art-note.gray{background:var(--bg-soft);border:1px solid var(--line)}
.art-note.gray b{color:var(--ink)}

/* ============ 专业指南：侧栏 ============ */
.art-side{position:sticky;top:96px;display:flex;flex-direction:column;gap:18px}
.side-card{border:1px solid var(--line);border-radius:12px;padding:20px;background:#fff}
.side-card h4{font-size:15px;margin-bottom:12px;padding-bottom:10px;border-bottom:1px solid var(--line)}
.side-toc a{display:block;font-size:13.5px;color:var(--ink-2);padding:6px 0;border-bottom:1px dashed #F0F1F4;line-height:1.6}
.side-toc a:last-child{border-bottom:none}
.side-toc a:hover{color:var(--red)}
.side-card.cta{background:var(--red);border-color:var(--red)}
.side-card.cta h4{color:#fff;border-bottom-color:rgba(255,255,255,.28)}
.side-card.cta p{font-size:13.5px;color:rgba(255,255,255,.92);margin-bottom:10px;line-height:1.7}
.side-card.cta .tel{display:block;font-size:21px;font-weight:700;font-family:Arial;color:#fff;margin-bottom:14px;letter-spacing:.5px}
.side-card.cta .btn{width:100%;justify-content:center;background:#fff;color:var(--red);font-size:15px;padding:11px 0}
.side-links a{display:block;font-size:13.5px;color:var(--ink-2);padding:7px 0;border-bottom:1px dashed #F0F1F4}
.side-links a:hover{color:var(--red)}
.side-links a:last-child{border-bottom:none}

/* ============ 专业指南：文末转化 ============ */
.art-foot{margin-top:52px;background:var(--bg-soft);border:1px solid var(--line);border-radius:14px;padding:32px}
.art-foot h3{font-size:20px;margin-bottom:8px;color:var(--ink)}
.art-foot p{font-size:14.5px;color:var(--ink-2);margin-bottom:18px;line-height:1.8}
.art-foot .acts{display:flex;gap:14px;flex-wrap:wrap;align-items:center}
.art-foot .btn-ghost{border-color:var(--red);color:var(--red)}
.art-foot .btn-ghost:hover{background:var(--red-light)}

/* ============ 指南总览卡片 ============ */
.guide-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.gcard{background:#fff;border:1px solid var(--line);border-radius:14px;padding:26px 24px;transition:.22s;display:flex;flex-direction:column}
.gcard:hover{transform:translateY(-4px);box-shadow:0 14px 32px rgba(230,0,18,.09);border-color:#F5C6C9}
.gcard .gn{font-family:Arial;font-size:12px;font-weight:700;color:var(--red);letter-spacing:1.5px}
.gcard h3{font-size:18px;margin:9px 0 10px;line-height:1.5}
.gcard h3 a:hover{color:var(--red)}
.gcard p{font-size:13.5px;color:var(--ink-2);line-height:1.8;flex:1}
.gcard .gmeta{margin-top:16px;padding-top:12px;border-top:1px dashed var(--line);font-size:12.5px;color:var(--ink-3);display:flex;justify-content:space-between;gap:12px}

/* ============ 项目交付动态 ============ */
.news-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.news-item{background:#fff;border:1px solid var(--line);border-left:4px solid var(--red);border-radius:12px;padding:20px 22px}
.news-item .nd{font-family:Arial;font-size:13px;font-weight:700;color:var(--red);margin-bottom:7px;letter-spacing:.5px}
.news-item h3{font-size:16.5px;margin-bottom:7px;line-height:1.5}
.news-item p{font-size:13.5px;color:var(--ink-2);line-height:1.8}
.news-item .ntag{display:inline-block;background:var(--bg-soft);border:1px solid var(--line);border-radius:99px;font-size:12px;color:var(--ink-3);padding:2px 10px;margin-top:10px}

/* ============ 项目纪实（案例实拍） ============ */
.case-gal{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:6px 0 10px}
.case-gal.g2{grid-template-columns:repeat(2,1fr)}
.case-gal figure{margin:0}
.case-shot{position:relative;border:1px solid var(--line);border-radius:10px;overflow:hidden;background:#fff}
.case-shot img{width:100%;display:block;cursor:zoom-in}
.case-shot .ptag{position:absolute;left:10px;top:10px;background:rgba(0,0,0,.62);color:#fff;font-size:12px;padding:3px 11px;border-radius:99px;letter-spacing:1px}
.case-shot .ptag.after{background:rgba(230,0,18,.85)}
.case-shot figcaption{font-size:12.5px;color:var(--ink-3);padding:9px 12px;line-height:1.6;border-top:1px solid var(--line)}
.case-facts{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin:16px 0 6px}
.case-facts .cf{background:var(--bg-soft);border:1px solid var(--line);border-radius:10px;padding:14px 16px}
.case-facts .cf b{display:block;font-size:15px;color:var(--ink);margin-bottom:3px}
.case-facts .cf span{font-size:12.5px;color:var(--ink-3)}
.case-flow{counter-reset:cf;list-style:none;padding:0;margin:0 0 20px;display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.case-flow li{counter-increment:cf;background:#fff;border:1px solid var(--line);border-radius:10px;padding:14px 16px;font-size:13.5px;line-height:1.7;color:var(--ink-2)}
.case-flow li::before{content:"0" counter(cf);display:block;font-family:Arial;font-weight:700;color:var(--red);font-size:15px;margin-bottom:5px}
.case-flow li b{color:var(--ink);display:block;margin-bottom:2px}

@media(max-width:960px){
  .art-layout{grid-template-columns:1fr;gap:0;padding-top:36px}
  .art-side{position:static;order:2;margin-top:44px}
  .guide-grid{grid-template-columns:1fr 1fr}
  .news-grid{grid-template-columns:1fr}
  .art-hero h1{font-size:26px}
  .art-hero .lede{font-size:15.5px}
  .art-body h2{font-size:20px}
  .case-gal{grid-template-columns:1fr 1fr}
  .case-facts{grid-template-columns:1fr 1fr}
  .case-flow{grid-template-columns:1fr 1fr}
}
@media(max-width:600px){
  .guide-grid{grid-template-columns:1fr}
  .art-hero h1{font-size:22px}
  .art-foot{padding:24px 20px}
  .art-body{font-size:15.5px}
  .case-gal,.case-gal.g2{grid-template-columns:1fr}
  .case-flow{grid-template-columns:1fr}
}

/* ================= 移动端导航（汉堡菜单） ================= */
.nav-toggle{display:none;width:42px;height:42px;border:1px solid var(--line);background:#fff;border-radius:10px;cursor:pointer;padding:0;align-items:center;justify-content:center;flex-direction:column;gap:4px}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:.2s}
.nav-toggle.on span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle.on span:nth-child(2){opacity:0}
.nav-toggle.on span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* ================= 移动端底部操作条 ================= */
.mbar{display:none}
.mbar a{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;font-size:12.5px;font-weight:700;color:var(--ink);padding:9px 0 10px;text-decoration:none}
.mbar a svg{width:20px;height:20px;fill:var(--red)}
.mbar a.mbar-cta{background:var(--red);color:#fff}
.mbar a.mbar-cta svg{fill:#fff}

/* ================= 首页摘要块（内容搬家后的压缩展示） ================= */
.sub-h{font-size:17px;font-weight:700;margin:40px 0 18px;padding-left:12px;border-left:4px solid var(--red);line-height:1.3}
.sub-h .more{font-size:13.5px;font-weight:500;color:var(--red);margin-left:8px}
.news-strip{list-style:none;padding:0;margin:0;border-top:1px solid var(--line)}
.news-strip li{display:flex;align-items:center;gap:16px;padding:14px 4px;border-bottom:1px solid var(--line);flex-wrap:wrap}
.news-strip .nsw{font-family:ui-monospace,Menlo,Consolas,monospace;font-size:13px;color:var(--ink-3);flex:none}
.news-strip a{font-size:15px;font-weight:600;color:var(--ink);flex:1;min-width:220px;text-decoration:none}
.news-strip a:hover{color:var(--red)}
.news-strip em{font-style:normal;font-size:12px;color:var(--red);background:var(--red-light);border:1px solid #F7CFD3;border-radius:20px;padding:2px 10px;flex:none}
.cl-hero{justify-content:flex-start;margin-bottom:26px}
.cl-mini-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.cl-mini{background:var(--bg-soft);border:1px solid var(--line);border-radius:var(--radius);padding:16px 18px}
.cl-mini h4{font-size:14.5px;margin:0 0 8px;display:flex;align-items:center;gap:8px;justify-content:space-between}
.cl-mini h4 span{font-size:12px;font-weight:400;color:var(--red);background:var(--red-light);border-radius:20px;padding:2px 9px;flex:none}
.cl-mini p{font-size:12.5px;color:var(--ink-2);line-height:1.7;margin:0}

@media(max-width:960px){
  .nav-toggle{display:flex}
  .menu{position:absolute;left:0;right:0;top:100%;background:#fff;border-bottom:1px solid var(--line);box-shadow:0 14px 30px rgba(0,0,0,.10);flex-direction:column;gap:0;padding:6px 0;display:none}
  .menu.open{display:flex}
  .menu a{padding:13px 22px;font-size:15.5px;border-bottom:1px solid var(--line);border-radius:0}
  .menu a:last-child{border-bottom:0}
  .nav-phone{display:none}
  .header .nav{height:62px;position:relative}
  .float-bar{display:none}
  .mbar{display:flex;position:fixed;left:0;right:0;bottom:0;z-index:220;background:#fff;border-top:1px solid var(--line);box-shadow:0 -4px 18px rgba(0,0,0,.08);padding-bottom:env(safe-area-inset-bottom)}
  body{padding-bottom:64px}
  .cl-mini-grid{grid-template-columns:1fr 1fr}
  .cert-wall[style]{grid-template-columns:1fr 1fr !important}
}
@media(max-width:600px){
  .cl-mini-grid{grid-template-columns:1fr}
  .news-strip li{gap:10px;padding:12px 0}
  .news-strip a{min-width:100%}
  .sub-h{font-size:16px;margin:32px 0 14px}
}

/* ================= 栅格项最小宽度修复（防止图片固有宽度撑破移动端布局） ================= */
.gal-grid>*,.cert-wall>*,.cl-mini-grid>*,.svc-grid>*,.guide-grid>*,.case-grid>*,
.area-grid>*,.proc-grid>*,.about-grid>*,.news-grid>*,.spec-grid>*,.case-gal>*,
.case-facts,.facts-grid>*,.entity-facts>*,.art-layout>*{min-width:0}

/* ================= 竖版服务海报（.poster-*）2026-10-13 =================
   竖版长图海报完整展示，不做aspect-ratio 裁切；点击可看大图。 */
.poster-wall{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:16px;margin:18px 0 8px}
.poster-fig{margin:0;background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden;
  box-shadow:0 2px 10px rgba(0,0,0,.04);transition:box-shadow .3s,transform .3s}
.poster-fig:hover{box-shadow:0 10px 28px rgba(0,0,0,.10);transform:translateY(-2px)}
.poster-fig img{width:100%;height:auto;display:block;cursor:zoom-in;background:#faf8f5}
.poster-fig figcaption{padding:11px 14px 13px;font-size:13.5px;line-height:1.65;color:var(--ink-2);
  border-top:1px solid var(--line)}
.poster-fig figcaption b{display:block;color:var(--ink);font-size:14.5px;font-weight:600;margin-bottom:3px}
.poster-fig figcaption em{font-style:normal;color:var(--red);font-weight:600}

/* 单张竖版海报（文章内嵌，配文说明） */
.poster-single{margin:20px 0 6px;background:#fff;border:1px solid var(--line);border-radius:12px;
  overflow:hidden;box-shadow:0 2px 12px rgba(0,0,0,.05)}
.poster-single img{width:100%;max-width:520px;height:auto;display:block;margin:0 auto;cursor:zoom-in}
.poster-single figcaption{padding:13px 18px 15px;font-size:13.5px;line-height:1.7;color:var(--ink-3);
  border-top:1px solid var(--line);text-align:center}
.poster-single figcaption b{color:var(--ink);font-weight:600}

/* 横版形象海报（品牌 / 资质类）—— 限宽居中，避免在大屏上撑满整幅 */
.poster-wide{max-width:860px;margin:28px auto 10px;background:#fff;border:1px solid var(--line);border-radius:12px;
  overflow:hidden;box-shadow:0 2px 12px rgba(0,0,0,.05);transition:box-shadow .3s,transform .3s}
.poster-wide:hover{box-shadow:0 10px 28px rgba(0,0,0,.10);transform:translateY(-2px)}
.poster-wide img{width:100%;height:auto;display:block;cursor:zoom-in;background:#faf8f5}
.poster-wide figcaption{padding:12px 18px 14px;font-size:13px;color:var(--ink-3);
  border-top:1px solid var(--line);text-align:center;line-height:1.65}
.poster-wide figcaption b{display:block;color:var(--ink);font-size:14.5px;font-weight:600}
.poster-wide figcaption em{display:block;font-style:normal;margin-top:2px;color:var(--ink-3);font-size:12px;letter-spacing:.5px}
.poster-note{font-size:13px;color:var(--ink-3);line-height:1.75;margin:10px 0 0;
  padding:11px 15px;background:var(--bg-soft);border-left:3px solid var(--red);border-radius:0 8px 8px 0}

/* 缩略网格最小宽度保护 */
.poster-wall>*,.poster-single>*,.poster-wide>*{min-width:0}

@media(max-width:960px){
  .poster-wall{grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:12px}
  .poster-wide{max-width:100%}
}
@media(max-width:600px){
  .poster-wall{grid-template-columns:repeat(2,1fr);gap:10px}
  .poster-fig figcaption{padding:9px 11px 11px;font-size:12.5px}
  .poster-fig figcaption b{font-size:13px}
  .poster-single img{max-width:100%}
}

/* ==========================================================================
   上线加固：移动端排版防溢出（2026-10-19）
   背景：正文里会出现网址、英文产品名、服务英文缩写（如 PCO / IDCFresh / IAQ）
   在窄屏手机上会撑破容器，导致整页出现横向滚动条、版式错乱。
   ========================================================================== */
html,body{overflow-wrap:break-word;word-break:break-word}
body{-webkit-text-size-adjust:100%;text-size-adjust:100%}
/* 链接、英文串、电话等长内容允许在任意字符处断行 */
a,p,li,td,th,h1,h2,h3,h4,h5,h6,span,div,dd,dt,figcaption,summary{
  overflow-wrap:break-word;word-break:break-word}
/* 代码/参数类不允许被拆断 */
code,kbd,pre{overflow-wrap:normal;word-break:keep-all}
/* 表格容器横向滚动：任何 table 在窄屏内不撑破页面 */
table{display:block;max-width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch}
/* 图片永不超出容器 */
img,svg,video,iframe{max-width:100%}
img,video{height:auto}
/* flex/grid 子项允许收缩，防止长内容撑破 */
.art-body *,.case-gal *,.poster-wall>*{min-width:0}
/* 固定底部悬浮元素预留安全区，避免遮挡正文（iPhone 刘海屏/小黑条） */
@supports(padding:max(0px)){
  body{padding-bottom:env(safe-area-inset-bottom)}
}

/* ===== ICP 备案号（工信部要求：首页底部展示+ 可跳转工信部查询页）=====
   样式要求：不能比正文醒目（避免抢注意力），但必须清晰可读、可点击 */
.f-icp{margin:8px 0 4px !important}
.f-icp a{color:#8A9099;text-decoration:none;border-bottom:1px solid transparent;transition:color .2s,border-color .2s}
.f-icp a:hover{color:#B9BFC7;border-bottom-color:#6B7280}