/* ===== 瑞泉水处理 · 天津区域公共样式 ===== */
:root{
  --rq-primary:#0a3d62;
  --rq-secondary:#1e6091;
  --rq-accent:#3c91e6;
  --rq-soft:#eaf3fb;
  --rq-text:#1f2a37;
  --rq-muted:#5b6877;
  --rq-line:#e5ebf2;
  --rq-bg:#ffffff;
  --rq-radius:14px;
  --rq-shadow:0 6px 24px rgba(10,61,98,.08);
  --rq-shadow-lg:0 16px 50px rgba(10,61,98,.14);
  --rq-font:'PingFang SC','Microsoft YaHei','Source Han Sans SC','Noto Sans CJK SC','Hiragino Sans GB',sans-serif;
}

*{box-sizing:border-box;margin:0;padding:0}
html,body{
  font-family:var(--rq-font);
  color:var(--rq-text);
  background:var(--rq-bg);
  font-size:15px;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  scroll-behavior:smooth;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .2s ease}
a:hover{color:var(--rq-primary)}
button{font-family:inherit;cursor:pointer;border:none;background:none}
ul,ol{list-style:none}

/* ===== 容器 ===== */
.rq-container{max-width:1240px;margin:0 auto;padding:0 24px}

/* ===== 顶部条 ===== */
.rq-topbar{
  background:linear-gradient(90deg,rgba(10,61,98,.06),rgba(60,145,230,.05));
  border-bottom:1px solid var(--rq-line);
  font-size:13px;color:var(--rq-muted);
}
.rq-topbar-inner{display:flex;justify-content:space-between;align-items:center;height:38px;flex-wrap:wrap;gap:8px}
.rq-topbar a{margin-left:14px;color:var(--rq-muted)}
.rq-topbar a:hover{color:var(--rq-primary)}

/* ===== 导航 ===== */
.rq-nav{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,.92);
  backdrop-filter:saturate(160%) blur(10px);
  -webkit-backdrop-filter:saturate(160%) blur(10px);
  border-bottom:1px solid transparent;
  transition:box-shadow .25s ease, border-color .25s ease, background .25s ease;
}
.rq-nav.rq-nav-stuck{
  box-shadow:0 4px 18px rgba(10,61,98,.08);
  border-color:var(--rq-line);
}
.rq-nav-inner{
  display:flex;align-items:center;justify-content:space-between;
  height:74px;gap:24px;
}
.rq-logo{
  display:flex;align-items:center;gap:10px;
  font-weight:700;color:var(--rq-primary);
}
.rq-logo-mark{
  width:42px;height:42px;border-radius:10px;
  background:linear-gradient(135deg,var(--rq-primary),var(--rq-accent));
  display:flex;align-items:center;justify-content:center;
  color:#fff;font-size:20px;font-weight:800;
  box-shadow:0 6px 18px rgba(10,61,98,.25);
  position:relative;overflow:hidden;
}
.rq-logo-mark::after{
  content:'';position:absolute;inset:auto -20% -40% auto;width:60%;height:80%;
  background:radial-gradient(circle,rgba(255,255,255,.45),transparent 60%);
  transform:rotate(20deg);
}
.rq-logo-text{
  display:flex;align-items:baseline;gap:8px;
  font-size:20px;letter-spacing:.5px;
}
.rq-logo-text .rq-logo-main{font-size:22px;font-weight:800}
.rq-logo-text .rq-logo-sep{color:var(--rq-accent);font-weight:600;font-size:20px}
.rq-logo-text .rq-logo-sub{color:var(--rq-muted);font-size:20px;font-weight:500}

.rq-nav-links{display:flex;align-items:center;gap:6px}
.rq-nav-link{
  padding:10px 14px;border-radius:8px;font-size:15px;color:var(--rq-text);
  position:relative;
}
.rq-nav-link:hover{color:var(--rq-primary);background:var(--rq-soft)}
.rq-nav-link.rq-active{color:var(--rq-primary);font-weight:600}
.rq-nav-link.rq-active::after{
  content:'';position:absolute;left:14px;right:14px;bottom:4px;height:2px;
  background:linear-gradient(90deg,var(--rq-primary),var(--rq-accent));
  border-radius:2px;
}
.rq-nav-cta{
  padding:10px 18px;border-radius:999px;
  background:linear-gradient(135deg,var(--rq-primary),var(--rq-accent));
  color:#fff !important;font-weight:600;
  box-shadow:0 8px 18px rgba(10,61,98,.25);
}
.rq-nav-cta:hover{transform:translateY(-1px);box-shadow:0 10px 22px rgba(10,61,98,.32)}
.rq-nav-toggle{display:none;width:40px;height:40px;border-radius:8px;background:var(--rq-soft);align-items:center;justify-content:center}
.rq-nav-toggle span{display:block;width:20px;height:2px;background:var(--rq-text);position:relative}
.rq-nav-toggle span::before,.rq-nav-toggle span::after{content:'';position:absolute;left:0;width:20px;height:2px;background:var(--rq-text)}
.rq-nav-toggle span::before{top:-6px}
.rq-nav-toggle span::after{top:6px}

/* ===== Banner ===== */
.rq-banner{
  position:relative;overflow:hidden;color:#fff;
  min-height:520px;display:flex;align-items:center;
  background:linear-gradient(135deg,var(--rq-primary) 0%, var(--rq-secondary) 55%, var(--rq-accent) 100%);
}
.rq-banner::before{
  content:'';position:absolute;inset:0;
  background:
    radial-gradient(900px 500px at 80% 20%, rgba(255,255,255,.18), transparent 60%),
    radial-gradient(600px 400px at 10% 80%, rgba(255,255,255,.10), transparent 60%);
  pointer-events:none;
}
.rq-banner::after{
  content:'';position:absolute;inset:0;
  background-image:
    linear-gradient(transparent 95%, rgba(255,255,255,.08) 95%),
    linear-gradient(90deg, transparent 95%, rgba(255,255,255,.08) 95%);
  background-size:48px 48px;
  opacity:.35;
  animation:rqGridMove 24s linear infinite;
  pointer-events:none;
  mask-image:linear-gradient(180deg, transparent, #000 30%, #000 70%, transparent);
}
@keyframes rqGridMove{
  from{background-position:0 0, 0 0}
  to{background-position:48px 48px, 48px 48px}
}
.rq-banner-inner{position:relative;z-index:1;width:100%;padding:80px 0 90px}
.rq-banner-grid{
  display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center;
}
.rq-banner-eyebrow{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;
  background:rgba(255,255,255,.15);border:1px solid rgba(255,255,255,.3);
  font-size:13px;letter-spacing:1px;
  backdrop-filter:blur(6px);
}
.rq-banner-eyebrow::before{content:'';width:8px;height:8px;border-radius:50%;background:#7CFFB2;box-shadow:0 0 0 4px rgba(124,255,178,.25)}
.rq-banner h1{
  font-size:46px;line-height:1.18;margin:18px 0 18px;font-weight:800;
  text-shadow:0 4px 24px rgba(0,0,0,.18);
}
.rq-banner h1 em{font-style:normal;color:#FFD66B}
.rq-banner p.lead{font-size:17px;line-height:1.85;max-width:640px;color:rgba(255,255,255,.92)}
.rq-banner-cta{display:flex;gap:14px;margin-top:30px;flex-wrap:wrap}
.rq-btn{
  display:inline-flex;align-items:center;gap:8px;padding:13px 22px;border-radius:10px;
  font-weight:600;font-size:15px;transition:transform .2s ease, box-shadow .2s ease, background .2s ease;
}
.rq-btn-primary{background:#fff;color:var(--rq-primary);box-shadow:0 8px 22px rgba(0,0,0,.15)}
.rq-btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 28px rgba(0,0,0,.22);color:var(--rq-primary)}
.rq-btn-ghost{background:rgba(255,255,255,.15);color:#fff;border:1px solid rgba(255,255,255,.4)}
.rq-btn-ghost:hover{background:rgba(255,255,255,.25);color:#fff}

.rq-banner-card{
  position:relative;background:rgba(255,255,255,.10);
  border:1px solid rgba(255,255,255,.22);
  border-radius:18px;padding:24px;
  backdrop-filter:blur(8px);
  box-shadow:0 20px 60px rgba(0,0,0,.18);
}
.rq-banner-card h3{font-size:18px;margin-bottom:14px;display:flex;align-items:center;gap:8px}
.rq-banner-card h3::before{content:'';width:6px;height:18px;border-radius:3px;background:#FFD66B}
.rq-banner-list{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.rq-banner-list a{
  display:flex;align-items:center;gap:8px;padding:10px 12px;border-radius:8px;
  background:rgba(255,255,255,.10);color:#fff;font-size:14px;
  border:1px solid rgba(255,255,255,.15);
}
.rq-banner-list a:hover{background:rgba(255,255,255,.20);color:#fff;transform:translateX(2px)}
.rq-banner-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:18px}
.rq-banner-stat{text-align:center;padding:12px 8px;background:rgba(255,255,255,.08);border-radius:10px}
.rq-banner-stat b{font-size:24px;display:block;color:#FFD66B;font-weight:800}
.rq-banner-stat span{font-size:12px;color:rgba(255,255,255,.8)}

/* 城市切换条 */
.rq-citybar{
  background:#fff;border-bottom:1px solid var(--rq-line);
  position:relative;z-index:5;
}
.rq-citybar-inner{display:flex;flex-wrap:wrap;align-items:center;gap:6px;padding:12px 0}
.rq-citybar-label{
  font-size:13px;color:var(--rq-muted);margin-right:6px;display:flex;align-items:center;gap:6px;
}
.rq-citybar-label::before{content:'';width:6px;height:6px;border-radius:50%;background:var(--rq-accent)}
.rq-city-link{
  font-size:13px;padding:6px 12px;border-radius:6px;color:var(--rq-muted);
  border:1px solid transparent;
}
.rq-city-link:hover{color:var(--rq-primary);background:var(--rq-soft);border-color:var(--rq-line)}
.rq-city-link.rq-active{color:#fff;background:var(--rq-primary);border-color:var(--rq-primary)}

/* ===== 通用 Section ===== */
.rq-section{padding:80px 0;position:relative}
.rq-section-alt{background:linear-gradient(180deg,var(--rq-soft) 0%, #fff 100%)}
.rq-section-head{text-align:center;max-width:760px;margin:0 auto 50px}
.rq-section-eyebrow{
  display:inline-block;padding:5px 14px;border-radius:999px;
  background:rgba(60,145,230,.10);color:var(--rq-secondary);
  font-size:13px;letter-spacing:1px;font-weight:600;
}
.rq-section-head h2{font-size:34px;margin:14px 0 12px;color:var(--rq-text);font-weight:800}
.rq-section-head h2 em{color:var(--rq-primary);font-style:normal}
.rq-section-head p{color:var(--rq-muted);font-size:16px;line-height:1.85}

/* ===== 关于 ===== */
.rq-about-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:50px;align-items:center}
.rq-about-text h3{font-size:26px;margin-bottom:16px;color:var(--rq-primary);font-weight:700}
.rq-about-text p{margin-bottom:14px;color:#38424f}
.rq-about-features{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:24px}
.rq-about-feat{
  padding:18px 18px;border-radius:12px;background:#fff;border:1px solid var(--rq-line);
  box-shadow:var(--rq-shadow);
}
.rq-about-feat b{color:var(--rq-primary);font-size:18px;display:block;margin-bottom:4px}
.rq-about-feat span{color:var(--rq-muted);font-size:13px}
.rq-about-visual{
  position:relative;border-radius:var(--rq-radius);overflow:hidden;
  box-shadow:var(--rq-shadow-lg);
  aspect-ratio:5/4;
  background:linear-gradient(135deg,var(--rq-primary),var(--rq-accent));
}
.rq-about-visual::before{
  content:'';position:absolute;inset:0;
  background:radial-gradient(600px 400px at 30% 20%, rgba(255,255,255,.25), transparent 60%);
}
.rq-about-visual-inner{
  position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  flex-direction:column;color:#fff;padding:30px;text-align:center;
}
.rq-about-visual-inner b{font-size:64px;font-weight:800;letter-spacing:1px;line-height:1}
.rq-about-visual-inner span{font-size:14px;margin-top:8px;opacity:.9;letter-spacing:1px}
.rq-about-badges{
  position:absolute;left:24px;bottom:24px;display:flex;gap:10px;flex-wrap:wrap;
}
.rq-about-badges span{
  background:rgba(255,255,255,.18);padding:6px 12px;border-radius:999px;
  font-size:12px;border:1px solid rgba(255,255,255,.3);
}

/* ===== 数据条 ===== */
.rq-stats-bar{
  background:linear-gradient(135deg,var(--rq-primary),var(--rq-secondary));
  color:#fff;border-radius:var(--rq-radius);padding:36px;
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
  box-shadow:var(--rq-shadow-lg);
  position:relative;overflow:hidden;
}
.rq-stats-bar::after{
  content:'';position:absolute;right:-80px;top:-80px;width:240px;height:240px;
  background:radial-gradient(circle,rgba(255,255,255,.18),transparent 70%);
}
.rq-stat-item{text-align:center;position:relative;z-index:1}
.rq-stat-item b{font-size:40px;font-weight:800;color:#FFD66B;display:block;line-height:1}
.rq-stat-item span{font-size:14px;color:rgba(255,255,255,.85);margin-top:6px;display:block}

/* ===== 营销扩展模块(区域特性) ===== */
.rq-feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.rq-feature-card{
  position:relative;padding:28px;border-radius:var(--rq-radius);background:#fff;
  border:1px solid var(--rq-line);box-shadow:var(--rq-shadow);
  transition:transform .3s ease, box-shadow .3s ease, border-color .3s ease;
}
.rq-feature-card:hover{transform:translateY(-4px);box-shadow:var(--rq-shadow-lg);border-color:rgba(60,145,230,.4)}
.rq-feature-icon{
  width:54px;height:54px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,rgba(60,145,230,.12),rgba(10,61,98,.10));
  color:var(--rq-primary);font-size:24px;font-weight:800;margin-bottom:16px;
}
.rq-feature-card h4{font-size:18px;margin-bottom:10px;color:var(--rq-text);font-weight:700}
.rq-feature-card p{color:var(--rq-muted);font-size:14px;line-height:1.75}
.rq-feature-card .rq-feature-tag{
  position:absolute;top:18px;right:18px;font-size:11px;padding:3px 8px;border-radius:6px;
  background:var(--rq-soft);color:var(--rq-secondary);font-weight:600;
}

/* ===== 工艺流程 ===== */
.rq-process{display:grid;grid-template-columns:repeat(6,1fr);gap:14px}
.rq-process-step{
  text-align:center;padding:24px 12px;border-radius:var(--rq-radius);
  background:#fff;border:1px solid var(--rq-line);
  position:relative;
}
.rq-process-step::after{
  content:'→';position:absolute;right:-12px;top:50%;transform:translateY(-50%);
  color:var(--rq-accent);font-weight:800;font-size:20px;
}
.rq-process-step:last-child::after{display:none}
.rq-process-step b{
  display:flex;align-items:center;justify-content:center;width:42px;height:42px;border-radius:50%;
  background:linear-gradient(135deg,var(--rq-primary),var(--rq-accent));color:#fff;margin:0 auto 10px;font-size:16px;
}
.rq-process-step h5{font-size:14px;color:var(--rq-text);margin-bottom:4px}
.rq-process-step span{font-size:12px;color:var(--rq-muted)}

/* ===== 产品分类选项卡 ===== */
.rq-cat-tabs{
  display:flex;flex-wrap:wrap;justify-content:center;gap:10px;margin-bottom:30px;
}
.rq-cat-tab{
  padding:10px 20px;border-radius:999px;
  background:#fff;color:var(--rq-muted);font-weight:600;font-size:14px;
  border:1px solid var(--rq-line);
  transition:all .25s ease;
}
.rq-cat-tab:hover{color:var(--rq-primary);border-color:rgba(60,145,230,.4)}
.rq-cat-tab.rq-active{
  background:linear-gradient(135deg,var(--rq-primary),var(--rq-accent));color:#fff;border-color:transparent;
  box-shadow:0 6px 16px rgba(10,61,98,.25);
}
.rq-cat-panel{display:none;animation:rqFadeIn .4s ease}
.rq-cat-panel.rq-show{display:block}
@keyframes rqFadeIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
.rq-cat-intro{
  text-align:center;padding:14px 20px;border-radius:12px;
  background:var(--rq-soft);color:var(--rq-text);margin-bottom:24px;
  border:1px dashed rgba(60,145,230,.35);
}
.rq-cat-intro .rq-cat-more{color:var(--rq-primary);font-weight:600;margin-left:6px}
.rq-prod-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.rq-prod-card{
  background:#fff;border:1px solid var(--rq-line);border-radius:var(--rq-radius);
  overflow:hidden;transition:transform .3s ease, box-shadow .3s ease, border-color .3s ease;
  cursor:pointer;
}
.rq-prod-card:hover{transform:translateY(-3px);box-shadow:var(--rq-shadow-lg);border-color:rgba(60,145,230,.4)}
.rq-prod-img{position:relative;aspect-ratio:4/3;overflow:hidden;background:#f3f6fa}
.rq-prod-img img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.rq-prod-card:hover .rq-prod-img img{transform:scale(1.06)}
.rq-prod-img::after{
  content:'点击查看大图';position:absolute;left:50%;bottom:10px;transform:translateX(-50%) translateY(10px);
  background:rgba(10,61,98,.85);color:#fff;font-size:12px;padding:5px 12px;border-radius:999px;
  opacity:0;transition:all .3s ease;
}
.rq-prod-card:hover .rq-prod-img::after{opacity:1;transform:translateX(-50%) translateY(0)}
.rq-prod-info{padding:16px}
.rq-prod-tag{
  display:inline-block;font-size:11px;padding:3px 8px;border-radius:6px;
  background:var(--rq-soft);color:var(--rq-secondary);font-weight:600;margin-bottom:8px;
}
.rq-prod-name{font-size:15px;font-weight:700;line-height:1.5;margin-bottom:8px;color:var(--rq-text);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:45px}
.rq-prod-desc{font-size:12.5px;color:var(--rq-muted);line-height:1.7;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;min-height:64px}

/* ===== 设备分站 ===== */
.rq-prodsites{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.rq-prodsite{
  display:flex;align-items:center;justify-content:space-between;
  padding:18px 22px;border-radius:12px;background:#fff;
  border:1px solid var(--rq-line);box-shadow:var(--rq-shadow);
  transition:transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.rq-prodsite:hover{transform:translateY(-2px);box-shadow:var(--rq-shadow-lg);border-color:rgba(60,145,230,.4)}
.rq-prodsite-info h5{font-size:16px;font-weight:700;color:var(--rq-text);margin-bottom:4px}
.rq-prodsite-info span{font-size:12px;color:var(--rq-muted)}
.rq-prodsite .rq-go{
  display:flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:50%;
  background:linear-gradient(135deg,var(--rq-primary),var(--rq-accent));color:#fff;font-size:16px;
}

/* ===== 行业应用 ===== */
.rq-industry-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.rq-industry{
  display:flex;align-items:center;gap:12px;padding:16px 18px;border-radius:12px;
  background:#fff;border:1px solid var(--rq-line);
}
.rq-industry-dot{
  width:36px;height:36px;border-radius:10px;flex:0 0 36px;
  background:linear-gradient(135deg,var(--rq-primary),var(--rq-accent));
  color:#fff;display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:800;
}
.rq-industry h6{font-size:14px;font-weight:700;margin-bottom:2px}
.rq-industry span{font-size:12px;color:var(--rq-muted)}

/* ===== FAQ ===== */
.rq-faq-list{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.rq-faq-item{
  background:#fff;border:1px solid var(--rq-line);border-radius:12px;
  padding:18px 22px;transition:border-color .2s ease, box-shadow .2s ease;
}
.rq-faq-item[open]{box-shadow:var(--rq-shadow);border-color:rgba(60,145,230,.4)}
.rq-faq-item summary{
  list-style:none;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:10px;
  font-weight:600;color:var(--rq-text);font-size:15px;
}
.rq-faq-item summary::-webkit-details-marker{display:none}
.rq-faq-q{flex:1}
.rq-faq-toggle{
  width:22px;height:22px;border-radius:50%;flex:0 0 22px;background:var(--rq-soft);
  position:relative;transition:transform .25s ease, background .25s ease;
}
.rq-faq-toggle::before,.rq-faq-toggle::after{
  content:'';position:absolute;left:5px;top:10px;width:12px;height:2px;background:var(--rq-secondary);border-radius:2px;
}
.rq-faq-toggle::after{transform:rotate(90deg);transition:transform .25s ease}
.rq-faq-item[open] .rq-faq-toggle{background:var(--rq-primary)}
.rq-faq-item[open] .rq-faq-toggle::before,.rq-faq-item[open] .rq-faq-toggle::after{background:#fff}
.rq-faq-item[open] .rq-faq-toggle::after{transform:rotate(0)}
.rq-faq-a{margin-top:12px;padding-top:12px;border-top:1px dashed var(--rq-line);color:var(--rq-muted);font-size:14px;line-height:1.85}

/* ===== 联系 ===== */
.rq-contact-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:36px;align-items:stretch}
.rq-contact-info{
  background:linear-gradient(135deg,var(--rq-primary),var(--rq-secondary));
  color:#fff;border-radius:var(--rq-radius);padding:36px;
  position:relative;overflow:hidden;
}
.rq-contact-info::after{
  content:'';position:absolute;right:-100px;bottom:-100px;width:280px;height:280px;
  background:radial-gradient(circle,rgba(255,255,255,.16),transparent 70%);
}
.rq-contact-info h3{font-size:24px;margin-bottom:24px;font-weight:800}
.rq-contact-list{display:grid;gap:14px;position:relative;z-index:1}
.rq-contact-list li{
  display:flex;gap:14px;padding:14px 16px;border-radius:10px;
  background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.18);
  align-items:flex-start;
}
.rq-contact-list .rq-ic{
  width:38px;height:38px;border-radius:8px;background:rgba(255,255,255,.20);
  display:flex;align-items:center;justify-content:center;flex:0 0 38px;
  font-size:14px;font-weight:800;
}
.rq-contact-list b{display:block;font-size:14px;color:rgba(255,255,255,.85);margin-bottom:2px;font-weight:500}
.rq-contact-list span{font-size:15px;font-weight:600;word-break:break-all}
.rq-contact-list a{color:#fff}
.rq-contact-list a:hover{color:#FFD66B}

.rq-contact-card{
  background:#fff;border-radius:var(--rq-radius);padding:30px;
  border:1px solid var(--rq-line);box-shadow:var(--rq-shadow);
  display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;
}
.rq-qr{
  width:200px;height:200px;border-radius:12px;background:#f5f7fa;
  display:flex;align-items:center;justify-content:center;overflow:hidden;
  border:1px solid var(--rq-line);
}
.rq-qr img{width:100%;height:100%;object-fit:cover}
.rq-qr-label{margin-top:14px;font-size:14px;color:var(--rq-muted)}
.rq-qr-tel{margin-top:18px;display:flex;flex-direction:column;align-items:center;gap:4px}
.rq-qr-tel b{font-size:26px;color:var(--rq-primary);font-weight:800;letter-spacing:1px}
.rq-qr-tel span{font-size:13px;color:var(--rq-muted)}

/* ===== 底部 ===== */
.rq-footer{
  background:#0d2336;color:rgba(255,255,255,.85);padding:60px 0 0;margin-top:60px;
}
.rq-footer-top{display:grid;grid-template-columns:1.2fr 1fr 1fr 1fr;gap:36px}
.rq-footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;margin-bottom:14px}
.rq-footer-brand .rq-logo-mark{width:36px;height:36px;font-size:16px;border-radius:8px}
.rq-footer-brand .rq-logo-text .rq-logo-main{font-size:18px}
.rq-footer-brand .rq-logo-text .rq-logo-sub{font-size:18px;color:rgba(255,255,255,.7)}
.rq-footer-brand .rq-logo-text .rq-logo-sep{color:#7BC5FF;font-size:18px}
.rq-footer p.rq-foot-desc{font-size:13.5px;color:rgba(255,255,255,.7);line-height:1.85}
.rq-footer h6{color:#fff;font-size:15px;font-weight:700;margin-bottom:16px;position:relative;padding-bottom:8px}
.rq-footer h6::after{content:'';position:absolute;left:0;bottom:0;width:30px;height:2px;background:linear-gradient(90deg,#7BC5FF,#3c91e6)}
.rq-footer-city,.rq-footer-prod{display:flex;flex-wrap:wrap;gap:8px 12px}
.rq-foot-city,.rq-foot-prod{font-size:13px;color:rgba(255,255,255,.75);padding:3px 0}
.rq-foot-city:hover,.rq-foot-prod:hover{color:#7BC5FF}

.rq-footer-bottom{
  border-top:1px solid rgba(255,255,255,.10);
  margin-top:40px;padding:20px 0;text-align:center;font-size:13px;color:rgba(255,255,255,.6);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:8px;
}
.rq-footer-bottom a{color:rgba(255,255,255,.75)}
.rq-footer-bottom a:hover{color:#7BC5FF}

/* ===== 灯箱 ===== */
.rq-lightbox{
  position:fixed;inset:0;z-index:1000;
  background:rgba(8,18,30,.86);display:none;align-items:center;justify-content:center;padding:24px;
  backdrop-filter:blur(6px);
}
.rq-lightbox.rq-open{display:flex;animation:rqLbFade .25s ease}
@keyframes rqLbFade{from{opacity:0}to{opacity:1}}
.rq-lightbox-inner{
  position:relative;max-width:90vw;max-height:88vh;background:#fff;border-radius:14px;padding:18px;
  box-shadow:0 30px 80px rgba(0,0,0,.5);
}
.rq-lightbox img{max-width:80vw;max-height:70vh;display:block;margin:0 auto;border-radius:8px}
.rq-lb-cap{margin-top:12px;text-align:center;color:#1f2a37;font-size:15px;font-weight:600}
.rq-lb-close{
  position:absolute;top:-12px;right:-12px;width:36px;height:36px;border-radius:50%;
  background:#fff;color:#1f2a37;font-size:18px;display:flex;align-items:center;justify-content:center;
  box-shadow:0 6px 16px rgba(0,0,0,.2);cursor:pointer;
}

/* ===== 揭示动画 ===== */
.rq-reveal{opacity:0;transform:translateY(18px);transition:opacity .7s ease, transform .7s ease}
.rq-reveal.rq-show{opacity:1;transform:none}
.rq-reveal[data-rq-delay="1"]{transition-delay:.1s}
.rq-reveal[data-rq-delay="2"]{transition-delay:.2s}
.rq-reveal[data-rq-delay="3"]{transition-delay:.3s}

/* ===== 响应式 ===== */
@media (max-width:1100px){
  .rq-nav-inner{height:60px;gap:14px}
  .rq-nav-link{padding:8px 8px;font-size:14px}
  .rq-nav-cta{padding:8px 12px;font-size:14px}
  .rq-logo-text{font-size:15px;gap:6px}
  .rq-logo-text .rq-logo-main{font-size:18px}
  .rq-logo-text .rq-logo-sep,.rq-logo-text .rq-logo-sub{font-size:18px}
  .rq-logo-mark{width:36px;height:36px;font-size:16px}
  .rq-nav-links{gap:2px}
  .rq-nav-toggle{display:flex}
  .rq-nav-links{display:none;position:absolute;left:0;right:0;top:100%;background:#fff;flex-direction:column;align-items:stretch;padding:10px 16px;box-shadow:0 8px 22px rgba(10,61,98,.10);border-top:1px solid var(--rq-line);gap:2px;z-index:60}
  .rq-nav-links.rq-open{display:flex}
  .rq-nav-link{padding:12px 8px;border-radius:6px}
  .rq-nav-cta{padding:10px 14px;text-align:center;justify-content:center}
}
@media (max-width:1024px){
  .rq-banner h1{font-size:36px}
  .rq-banner-grid{grid-template-columns:1fr;gap:30px}
  .rq-about-grid,.rq-contact-grid{grid-template-columns:1fr;gap:30px}
  .rq-prod-grid{grid-template-columns:repeat(3,1fr)}
  .rq-feature-grid{grid-template-columns:repeat(2,1fr)}
  .rq-prodsites{grid-template-columns:repeat(2,1fr)}
  .rq-faq-list{grid-template-columns:1fr}
  .rq-process{grid-template-columns:repeat(3,1fr)}
  .rq-process-step:nth-child(3)::after{display:none}
  .rq-industry-grid{grid-template-columns:repeat(2,1fr)}
  .rq-footer-top{grid-template-columns:repeat(2,1fr)}
  .rq-stats-bar{grid-template-columns:repeat(2,1fr)}
  .rq-section-head h2{font-size:28px}
}
@media (max-width:768px){
  .rq-nav-inner{height:60px}
  .rq-banner{min-height:auto;padding:20px 0}
  .rq-banner-inner{padding:50px 0 60px}
  .rq-banner h1{font-size:30px}
  .rq-banner p.lead{font-size:15px}
  .rq-banner-list{grid-template-columns:1fr}
  .rq-banner-stats{grid-template-columns:repeat(3,1fr)}
  .rq-section{padding:56px 0}
  .rq-prod-grid{grid-template-columns:repeat(2,1fr);gap:12px}
  .rq-feature-grid{grid-template-columns:1fr}
  .rq-prodsites{grid-template-columns:1fr}
  .rq-process{grid-template-columns:repeat(2,1fr)}
  .rq-process-step::after{display:none}
  .rq-industry-grid{grid-template-columns:1fr}
  .rq-faq-list{grid-template-columns:1fr}
  .rq-footer-top{grid-template-columns:1fr;gap:24px}
  .rq-stats-bar{grid-template-columns:1fr 1fr;padding:24px}
  .rq-section-head h2{font-size:24px}
  .rq-topbar-inner{height:auto;padding:8px 0;font-size:12px}
  .rq-citybar-inner{font-size:12px;padding:10px 0}
  .rq-city-link{font-size:12px;padding:4px 8px}
}
@media (max-width:480px){
  .rq-prod-grid{grid-template-columns:1fr}
  .rq-banner h1{font-size:26px}
  .rq-banner-cta{flex-direction:column;align-items:stretch}
  .rq-btn{justify-content:center}
  .rq-stats-bar{grid-template-columns:1fr}
}