/* ===== 基础重置 ===== */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Source Han Sans CN", "Hiragino Sans GB", "Helvetica Neue", Arial, sans-serif;
  font-size: 15px;
  line-height: 1.7;
  color: #2a2a2a;
  background: #fff;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; transition: all .25s ease; }
a:hover { color: var(--theme-color, #1a6bb8); }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }

:root {
  --theme-color: #1a6bb8;
  --theme-color-dark: #0d4a87;
  --theme-color-light: #e8f1fb;
  --theme-color-accent: #f5a623;
  --text-color: #2a2a2a;
  --text-color-light: #666;
  --text-color-lighter: #999;
  --bg-color: #fff;
  --bg-color-alt: #f7f9fc;
  --border-color: #e5e8ef;
  --shadow-sm: 0 2px 8px rgba(0,0,0,.06);
  --shadow-md: 0 4px 18px rgba(0,0,0,.08);
  --shadow-lg: 0 10px 32px rgba(0,0,0,.10);
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --container-width: 1240px;
  --transition: all .3s ease;
}

/* ===== 通用容器 ===== */
.container { max-width: var(--container-width); margin: 0 auto; padding: 0 20px; }
.section { padding: 80px 0; }
.section-alt { background: var(--bg-color-alt); }
.section-title { text-align: center; margin-bottom: 56px; }
.section-title h2 {
  font-size: 36px;
  font-weight: 700;
  color: var(--text-color);
  margin-bottom: 14px;
  letter-spacing: 1px;
}
.section-title h2 span { color: var(--theme-color); }
.section-title p {
  font-size: 16px;
  color: var(--text-color-light);
  max-width: 720px;
  margin: 0 auto;
}
.section-title::after {
  content: "";
  display: block;
  width: 56px;
  height: 3px;
  background: var(--theme-color);
  margin: 18px auto 0;
  border-radius: 2px;
}

/* ===== 顶部导航 + Banner 合并动态区 ===== */
.rq-header {
  position: relative;
  min-height: 620px;
  background: linear-gradient(135deg, var(--theme-color) 0%, var(--theme-color-dark) 100%);
  overflow: hidden;
  color: #fff;
}
.rq-header::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 20% 30%, rgba(255,255,255,.12) 0%, transparent 40%),
    radial-gradient(circle at 80% 70%, rgba(255,255,255,.10) 0%, transparent 40%);
  pointer-events: none;
}
.rq-header::after {
  content: "";
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='60' height='60'><path d='M0 30 Q15 0 30 30 T60 30' stroke='rgba(255,255,255,0.05)' fill='none' stroke-width='1'/></svg>");
  pointer-events: none;
  opacity: .5;
}
.rq-nav {
  position: relative;
  z-index: 10;
  padding: 22px 0;
  background: rgba(0,0,0,.08);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
.rq-nav-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}
.rq-logo {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 22px;
  font-weight: 700;
  color: #fff;
  letter-spacing: 1px;
  white-space: nowrap;
}
.rq-logo-icon {
  width: 46px;
  height: 46px;
  background: rgba(255,255,255,.18);
  border: 2px solid rgba(255,255,255,.55);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  font-weight: 700;
  color: #fff;
}
.rq-logo-text { display: flex; align-items: center; gap: 10px; }
.rq-logo-text .divider { color: rgba(255,255,255,.65); font-weight: 400; }
.rq-logo-text .sub { font-size: 18px; font-weight: 600; }
.rq-nav-menu { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.rq-nav-menu a {
  padding: 10px 16px;
  color: rgba(255,255,255,.92);
  font-size: 15px;
  font-weight: 500;
  border-radius: 6px;
  transition: var(--transition);
}
.rq-nav-menu a:hover, .rq-nav-menu a.active {
  background: rgba(255,255,255,.18);
  color: #fff;
}
.rq-nav-toggle { display: none; font-size: 26px; color: #fff; cursor: pointer; }

.rq-banner {
  position: relative;
  z-index: 5;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 80px 20px 100px;
  text-align: center;
}
.rq-banner h1 {
  font-size: 44px;
  font-weight: 700;
  margin-bottom: 18px;
  letter-spacing: 1.5px;
  line-height: 1.3;
  text-shadow: 0 2px 12px rgba(0,0,0,.18);
}
.rq-banner h1 .highlight {
  color: #fff;
  background: linear-gradient(90deg, var(--theme-color-accent), #ffd57a);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  padding: 0 4px;
}
.rq-banner .subtitle {
  font-size: 18px;
  margin-bottom: 32px;
  color: rgba(255,255,255,.92);
  letter-spacing: 1px;
}
.rq-banner .keywords {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-bottom: 36px;
}
.rq-banner .keywords span {
  padding: 8px 18px;
  background: rgba(255,255,255,.15);
  border: 1px solid rgba(255,255,255,.35);
  border-radius: 30px;
  font-size: 14px;
  color: #fff;
  backdrop-filter: blur(6px);
  transition: var(--transition);
}
.rq-banner .keywords span:hover {
  background: rgba(255,255,255,.28);
  transform: translateY(-2px);
}
.rq-banner .actions {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}
.rq-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  font-size: 15px;
  font-weight: 600;
  border-radius: 30px;
  transition: var(--transition);
  cursor: pointer;
}
.rq-btn-primary {
  background: #fff;
  color: var(--theme-color);
  box-shadow: 0 6px 20px rgba(0,0,0,.15);
}
.rq-btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 28px rgba(0,0,0,.22);
  color: var(--theme-color-dark);
}
.rq-btn-outline {
  background: transparent;
  color: #fff;
  border: 2px solid #fff;
}
.rq-btn-outline:hover {
  background: #fff;
  color: var(--theme-color);
  transform: translateY(-3px);
}

/* ===== 公司介绍 ===== */
.rq-intro {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 60px;
  align-items: center;
}
.rq-intro-content h3 {
  font-size: 30px;
  font-weight: 700;
  color: var(--text-color);
  margin-bottom: 12px;
  position: relative;
  padding-left: 16px;
}
.rq-intro-content h3::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  bottom: 8px;
  width: 5px;
  background: var(--theme-color);
  border-radius: 3px;
}
.rq-intro-content .lead {
  font-size: 17px;
  color: var(--text-color-light);
  margin-bottom: 22px;
  line-height: 1.8;
}
.rq-intro-content p { color: var(--text-color-light); margin-bottom: 16px; }
.rq-intro-features {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
  margin-top: 30px;
}
.rq-feature-item {
  background: var(--theme-color-light);
  padding: 18px;
  border-radius: var(--radius-md);
  border-left: 3px solid var(--theme-color);
}
.rq-feature-item h4 {
  font-size: 15px;
  color: var(--theme-color-dark);
  margin-bottom: 6px;
  font-weight: 700;
}
.rq-feature-item p { font-size: 13px; color: var(--text-color-light); margin: 0; }
.rq-intro-image {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}
.rq-intro-image::before {
  content: "";
  position: absolute;
  top: -10px;
  right: -10px;
  bottom: 40px;
  left: 40px;
  border: 3px solid var(--theme-color);
  border-radius: var(--radius-lg);
  z-index: 0;
}
.rq-intro-image img { position: relative; z-index: 1; border-radius: var(--radius-lg); }

/* ===== 营销板块 ===== */
.rq-marketing-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}
.rq-marketing-card {
  background: #fff;
  padding: 32px 22px;
  border-radius: var(--radius-md);
  text-align: center;
  transition: var(--transition);
  border: 1px solid var(--border-color);
  position: relative;
  overflow: hidden;
}
.rq-marketing-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--theme-color);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .35s ease;
}
.rq-marketing-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: var(--theme-color); }
.rq-marketing-card:hover::before { transform: scaleX(1); }
.rq-marketing-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 18px;
  background: var(--theme-color-light);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 30px;
  color: var(--theme-color);
  transition: var(--transition);
}
.rq-marketing-card:hover .rq-marketing-icon {
  background: var(--theme-color);
  color: #fff;
  transform: scale(1.06) rotate(6deg);
}
.rq-marketing-card h4 { font-size: 17px; margin-bottom: 10px; color: var(--text-color); }
.rq-marketing-card p { font-size: 14px; color: var(--text-color-light); line-height: 1.65; }

/* ===== 产品展示 ===== */
.rq-product-filter {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}
.rq-product-filter button {
  padding: 9px 22px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-color-light);
  background: #fff;
  border: 1px solid var(--border-color);
  border-radius: 24px;
  transition: var(--transition);
}
.rq-product-filter button:hover, .rq-product-filter button.active {
  background: var(--theme-color);
  color: #fff;
  border-color: var(--theme-color);
}
.rq-product-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}
.rq-product-card {
  background: #fff;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  cursor: pointer;
  border: 1px solid var(--border-color);
}
.rq-product-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: var(--theme-color); }
.rq-product-image {
  position: relative;
  overflow: hidden;
  aspect-ratio: 4/3;
  background: #f0f3f7;
}
.rq-product-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s ease;
}
.rq-product-card:hover .rq-product-image img { transform: scale(1.08); }
.rq-product-image::after {
  content: "🔍";
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,.5);
  color: #fff;
  font-size: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: var(--transition);
}
.rq-product-card:hover .rq-product-image::after { opacity: 1; }
.rq-product-info { padding: 18px; }
.rq-product-info h4 {
  font-size: 15px;
  color: var(--text-color);
  margin-bottom: 8px;
  font-weight: 600;
  line-height: 1.45;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.rq-product-info p {
  font-size: 13px;
  color: var(--text-color-light);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.rq-product-tag {
  display: inline-block;
  font-size: 12px;
  color: var(--theme-color);
  background: var(--theme-color-light);
  padding: 3px 10px;
  border-radius: 12px;
  margin-top: 8px;
}

/* ===== 设备站链接 ===== */
.rq-sites {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.rq-site-card {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px;
  background: #fff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  transition: var(--transition);
}
.rq-site-card:hover {
  border-color: var(--theme-color);
  transform: translateX(4px);
  box-shadow: var(--shadow-sm);
}
.rq-site-icon {
  width: 48px;
  height: 48px;
  background: var(--theme-color-light);
  color: var(--theme-color);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  flex-shrink: 0;
  transition: var(--transition);
}
.rq-site-card:hover .rq-site-icon {
  background: var(--theme-color);
  color: #fff;
}
.rq-site-info h4 { font-size: 15px; margin-bottom: 4px; }
.rq-site-info p { font-size: 12px; color: var(--text-color-light); }
.rq-site-info p a { color: var(--theme-color); font-weight: 600; }

/* ===== FAQ ===== */
.rq-faq { max-width: 900px; margin: 0 auto; }
.rq-faq-item {
  background: #fff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  margin-bottom: 14px;
  overflow: hidden;
  transition: var(--transition);
}
.rq-faq-item:hover { border-color: var(--theme-color); }
.rq-faq-q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-color);
  user-select: none;
}
.rq-faq-q .q-prefix {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  background: var(--theme-color);
  color: #fff;
  border-radius: 50%;
  font-size: 14px;
  margin-right: 12px;
  flex-shrink: 0;
}
.rq-faq-q .q-text { flex: 1; }
.rq-faq-q .q-toggle {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--theme-color-light);
  color: var(--theme-color);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  transition: var(--transition);
  flex-shrink: 0;
}
.rq-faq-item.active .rq-faq-q .q-toggle {
  background: var(--theme-color);
  color: #fff;
  transform: rotate(45deg);
}
.rq-faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height .35s ease;
  padding: 0 24px;
}
.rq-faq-item.active .rq-faq-a {
  max-height: 600px;
  padding: 0 24px 22px;
}
.rq-faq-a-content {
  padding: 16px;
  background: var(--bg-color-alt);
  border-radius: var(--radius-sm);
  color: var(--text-color-light);
  font-size: 14px;
  line-height: 1.8;
  border-left: 3px solid var(--theme-color);
}

/* ===== 联系方式 ===== */
.rq-contact-wrap {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 40px;
  background: #fff;
  padding: 48px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}
.rq-contact-info h3 {
  font-size: 26px;
  margin-bottom: 8px;
  color: var(--text-color);
  position: relative;
  padding-left: 16px;
}
.rq-contact-info h3::before {
  content: "";
  position: absolute;
  left: 0; top: 6px; bottom: 6px;
  width: 5px;
  background: var(--theme-color);
  border-radius: 3px;
}
.rq-contact-info > p { color: var(--text-color-light); margin-bottom: 28px; }
.rq-contact-list { display: flex; flex-direction: column; gap: 18px; }
.rq-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 14px;
  background: var(--bg-color-alt);
  border-radius: var(--radius-md);
  transition: var(--transition);
}
.rq-contact-item:hover { background: var(--theme-color-light); }
.rq-contact-icon {
  width: 40px;
  height: 40px;
  background: var(--theme-color);
  color: #fff;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
}
.rq-contact-text { flex: 1; min-width: 0; }
.rq-contact-text .label {
  font-size: 12px;
  color: var(--text-color-lighter);
  margin-bottom: 4px;
  display: block;
}
.rq-contact-text .value {
  font-size: 15px;
  color: var(--text-color);
  font-weight: 600;
  word-break: break-all;
}
.rq-qr-card {
  text-align: center;
  background: linear-gradient(135deg, var(--theme-color-light) 0%, #fff 100%);
  padding: 36px 24px;
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}
.rq-qr-card img {
  width: 200px;
  height: 200px;
  border: 4px solid #fff;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  margin-bottom: 16px;
}
.rq-qr-card h4 { font-size: 18px; margin-bottom: 6px; color: var(--theme-color-dark); }
.rq-qr-card p { font-size: 13px; color: var(--text-color-light); }

/* ===== 城市链接 ===== */
.rq-cities {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 12px;
}
.rq-city-link {
  display: block;
  padding: 14px 12px;
  text-align: center;
  background: #fff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 500;
  color: var(--text-color);
  transition: var(--transition);
}
.rq-city-link:hover {
  background: var(--theme-color);
  color: #fff;
  border-color: var(--theme-color);
  transform: translateY(-2px);
}
.rq-city-link.active {
  background: var(--theme-color);
  color: #fff;
  border-color: var(--theme-color);
}

/* ===== 底部 ===== */
.rq-footer {
  background: #1a2332;
  color: #b0bac8;
  padding: 50px 0 24px;
  font-size: 13px;
  line-height: 1.8;
}
.rq-footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 30px;
}
.rq-footer-col h5 {
  color: #fff;
  font-size: 15px;
  margin-bottom: 18px;
  font-weight: 600;
  position: relative;
  padding-bottom: 10px;
}
.rq-footer-col h5::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 30px; height: 2px;
  background: var(--theme-color);
}
.rq-footer-col p, .rq-footer-col a { color: #b0bac8; font-size: 13px; margin-bottom: 8px; display: block; }
.rq-footer-col a:hover { color: #fff; }
.rq-footer-bottom {
  border-top: 1px solid #2a3548;
  padding-top: 20px;
  text-align: center;
  color: #8a94a4;
  font-size: 12px;
  line-height: 1.8;
}
.rq-footer-bottom a { color: #8a94a4; }
.rq-footer-bottom a:hover { color: var(--theme-color); }

/* ===== 灯箱 ===== */
.rq-lightbox {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.92);
  z-index: 9999;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 40px;
  cursor: zoom-out;
}
.rq-lightbox.active { display: flex; }
.rq-lightbox img {
  max-width: 90%;
  max-height: 90vh;
  object-fit: contain;
  border-radius: 8px;
  box-shadow: 0 20px 60px rgba(0,0,0,.5);
}
.rq-lightbox-close {
  position: absolute;
  top: 24px;
  right: 24px;
  width: 44px;
  height: 44px;
  background: rgba(255,255,255,.15);
  color: #fff;
  border-radius: 50%;
  font-size: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition);
}
.rq-lightbox-close:hover { background: rgba(255,255,255,.3); transform: rotate(90deg); }
.rq-lightbox-caption {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  color: #fff;
  font-size: 14px;
  background: rgba(0,0,0,.5);
  padding: 10px 20px;
  border-radius: 24px;
  max-width: 80%;
  text-align: center;
}

/* ===== 滚动入场动画 ===== */
.rq-reveal { opacity: 0; transform: translateY(28px); transition: opacity .8s ease, transform .8s ease; }
.rq-reveal.rq-show { opacity: 1; transform: translateY(0); }

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .rq-intro { grid-template-columns: 1fr; }
  .rq-marketing-grid { grid-template-columns: repeat(2, 1fr); }
  .rq-product-grid { grid-template-columns: repeat(3, 1fr); }
  .rq-sites { grid-template-columns: repeat(2, 1fr); }
  .rq-contact-wrap { grid-template-columns: 1fr; padding: 32px; }
  .rq-footer-grid { grid-template-columns: 1fr 1fr; }
  .rq-cities { grid-template-columns: repeat(4, 1fr); }
}
@media (max-width: 768px) {
  .section { padding: 56px 0; }
  .section-title h2 { font-size: 26px; }
  .rq-banner { padding: 56px 20px 70px; }
  .rq-banner h1 { font-size: 28px; }
  .rq-banner .subtitle { font-size: 15px; }
  .rq-nav-menu {
    display: none;
    position: absolute;
    top: 100%; left: 0; right: 0;
    background: rgba(0,0,0,.92);
    flex-direction: column;
    padding: 16px;
    gap: 0;
  }
  .rq-nav-menu.open { display: flex; }
  .rq-nav-menu a { width: 100%; padding: 12px 16px; }
  .rq-nav-toggle { display: flex; align-items: center; justify-content: center; width: 40px; height: 40px; }
  .rq-header { min-height: 540px; }
  .rq-marketing-grid { grid-template-columns: 1fr; }
  .rq-product-grid { grid-template-columns: repeat(2, 1fr); }
  .rq-sites { grid-template-columns: 1fr; }
  .rq-footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .rq-cities { grid-template-columns: repeat(3, 1fr); }
  .rq-intro-features { grid-template-columns: 1fr; }
  .rq-contact-wrap { padding: 24px; }
  .rq-logo-text .sub { display: none; }
  .rq-logo { font-size: 18px; }
  .rq-logo-icon { width: 38px; height: 38px; font-size: 18px; }
}
@media (max-width: 480px) {
  .rq-product-grid { grid-template-columns: 1fr; }
  .rq-cities { grid-template-columns: repeat(2, 1fr); }
  .rq-banner h1 { font-size: 24px; }
  .rq-banner .keywords span { font-size: 12px; padding: 6px 14px; }
}