/* ====== 通用基础样式（不包含任何主题色） ====== */
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-size: 15px;
  line-height: 1.7;
  color: #2a2f36;
  background: #ffffff;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, h4 { margin: 0; font-weight: 700; line-height: 1.3; }
p { margin: 0 0 .8em 0; }
ul { margin: 0; padding: 0; list-style: none; }
button { font-family: inherit; cursor: pointer; }

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

/* 通用 Section 间距 */
.rq-section { padding: 80px 0; position: relative; }
.rq-section-head { text-align: center; max-width: 820px; margin: 0 auto 48px; padding: 0 16px; }
.rq-section-kicker { font-size: 12px; letter-spacing: .3em; text-transform: uppercase; opacity: .65; margin-bottom: 14px; }
.rq-section-title { font-size: 32px; margin-bottom: 14px; }
.rq-section-sub { font-size: 15px; opacity: .75; }
.rq-section-more { text-align: center; margin-top: 36px; }

/* 按钮 */
.rq-btn { display: inline-block; padding: 13px 30px; border-radius: 999px; font-weight: 600; font-size: 14px; letter-spacing: .04em; transition: all .25s ease; border: 1px solid transparent; }
.rq-btn-primary { background: #1a73e8; color: #fff; }
.rq-btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 28px rgba(26,115,232,.35); }
.rq-btn-ghost { background: rgba(255,255,255,.08); color: #fff; border-color: rgba(255,255,255,.5); }
.rq-btn-ghost:hover { background: rgba(255,255,255,.18); }

/* 通用 Header */
.rq-header { position: fixed; top: 0; left: 0; right: 0; z-index: 999; transition: all .3s ease; }
.rq-header.scrolled { backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); background: rgba(255,255,255,.92); box-shadow: 0 2px 24px rgba(0,0,0,.06); }
.rq-header-inner { max-width: 1280px; margin: 0 auto; padding: 0 28px; height: 76px; display: flex; align-items: center; gap: 36px; }
.rq-logo { display: flex; align-items: center; gap: 10px; font-size: 22px; font-weight: 800; letter-spacing: .02em; white-space: nowrap; }
.rq-logo-divider { font-weight: 400; opacity: .55; }
.rq-logo-sub { font-size: 22px; font-weight: 800; letter-spacing: .02em; }
.rq-nav { display: flex; align-items: center; gap: 28px; flex: 1; justify-content: center; }
.rq-nav > a, .rq-nav-item > a { font-size: 15px; font-weight: 500; position: relative; padding: 6px 0; }
.rq-nav > a::after, .rq-nav-item > a::after { content: ""; position: absolute; left: 50%; bottom: -4px; height: 2px; width: 0; background: currentColor; transition: all .3s ease; transform: translateX(-50%); }
.rq-nav > a:hover::after, .rq-nav-item > a:hover::after { width: 100%; }
.rq-dropdown { position: relative; }
.rq-dropdown-menu { position: absolute; top: 100%; left: 50%; transform: translateX(-50%) translateY(8px); min-width: 180px; padding: 10px; border-radius: 12px; background: #fff; box-shadow: 0 16px 40px rgba(0,0,0,.12); opacity: 0; visibility: hidden; transition: all .25s ease; z-index: 10; }
.rq-dropdown-menu a { display: block; padding: 8px 12px; font-size: 14px; border-radius: 8px; color: #333; }
.rq-dropdown-menu a:hover { background: #f3f6fb; }
.rq-dropdown:hover .rq-dropdown-menu { opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0); }
.rq-dropdown-menu-wide { min-width: 480px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 4px; }
.rq-header-phone { display: flex; flex-direction: column; align-items: flex-end; line-height: 1.2; }
.rq-header-phone-label { font-size: 11px; opacity: .65; letter-spacing: .2em; }
.rq-header-phone-num { font-size: 18px; font-weight: 800; }
.rq-nav-toggle { display: none; background: transparent; border: 0; font-size: 24px; }
.rq-mobile-nav { display: none; }
.rq-mobile-nav.open { display: block; }
.rq-mobile-nav a { display: block; padding: 12px 24px; border-bottom: 1px solid #eee; font-size: 15px; }
.rq-mobile-group { padding: 14px 24px 4px; font-size: 12px; letter-spacing: .2em; opacity: .55; }
.rq-mobile-links { display: grid; grid-template-columns: repeat(2, 1fr); gap: 4px; padding: 0 24px 14px; border-bottom: 1px solid #eee; }
.rq-mobile-links a { padding: 8px 0; font-size: 14px; border: 0; }

/* 通用 Banner */
.rq-banner { position: relative; min-height: 600px; padding-top: 76px; overflow: hidden; }
.rq-banner-viewport { position: relative; min-height: 540px; }
.rq-banner-slide { position: absolute; inset: 0; opacity: 0; transition: opacity .8s ease; display: flex; align-items: center; }
.rq-banner-slide.active { opacity: 1; }
.rq-banner-content { position: relative; z-index: 2; max-width: 1240px; margin: 0 auto; padding: 60px 28px; width: 100%; text-align: center; }
.rq-banner-kicker { display: inline-block; padding: 6px 14px; border: 1px solid currentColor; border-radius: 999px; font-size: 12px; letter-spacing: .3em; margin: 0 auto 22px; opacity: .8; }
.rq-banner-title { font-size: 46px; line-height: 1.2; margin-bottom: 18px; max-width: 720px; text-shadow: 0 2px 14px rgba(0,0,0,.4), 0 0 32px rgba(0,0,0,.18); font-weight: 800; }
.rq-banner-sub { font-size: 16px; opacity: .85; max-width: 580px; margin: 0 auto 28px; }
.rq-banner-actions { display: flex; gap: 14px; flex-wrap: wrap; justify-content: center; }
.rq-banner-shape { position: absolute; inset: 0; z-index: 1; }
.rq-banner-viewport > .rq-banner-slide:nth-child(1) .rq-banner-shape,
.rq-banner-viewport > .rq-banner-slide:nth-child(2) .rq-banner-shape,
.rq-banner-viewport > .rq-banner-slide:nth-child(3) .rq-banner-shape {
  background-size: 100% 100%, 100% 100%, 80px 80px, 80px 80px;
}
.rq-banner-dots { position: absolute; bottom: 96px; left: 50%; transform: translateX(-50%); display: flex; gap: 10px; z-index: 3; }
.rq-banner-dot { width: 28px; height: 4px; border-radius: 4px; background: rgba(255,255,255,.45); transition: all .3s ease; cursor: pointer; }
.rq-banner-dot.active { background: #fff; width: 42px; }
.rq-banner-quick { position: absolute; left: 0; right: 0; bottom: 0; z-index: 3; display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: rgba(255,255,255,.18); backdrop-filter: blur(10px); }
.rq-banner-quick-item { padding: 18px 24px; text-align: center; }
.rq-banner-quick-item span { display: block; font-size: 16px; font-weight: 700; margin-bottom: 4px; }
.rq-banner-quick-item em { font-style: normal; font-size: 12px; opacity: .8; }

/* 产品中心 */
.rq-tabs { display: flex; justify-content: center; gap: 10px; flex-wrap: wrap; max-width: 1240px; margin: 0 auto 36px; padding: 0 24px; }
.rq-tab { padding: 10px 22px; border-radius: 999px; border: 1px solid #e0e4eb; background: #fff; font-size: 14px; transition: all .25s ease; }
.rq-tab:hover { border-color: #1a73e8; color: #1a73e8; }
.rq-tab.active { background: #1a73e8; color: #fff; border-color: #1a73e8; }
.rq-product-grid { max-width: 1240px; margin: 0 auto; display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; padding: 0 24px; }
.rq-product-card { background: #fff; border-radius: 14px; overflow: hidden; box-shadow: 0 6px 24px rgba(20,40,80,.06); transition: all .3s ease; }
.rq-product-card:hover { transform: translateY(-6px); box-shadow: 0 18px 40px rgba(20,40,80,.12); }
.rq-product-img { position: relative; aspect-ratio: 4/3; overflow: hidden; cursor: zoom-in; }
.rq-product-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s ease; }
.rq-product-card:hover .rq-product-img img { transform: scale(1.06); }
.rq-product-tag { position: absolute; top: 12px; left: 12px; padding: 4px 12px; background: rgba(0,0,0,.55); color: #fff; font-size: 12px; border-radius: 999px; backdrop-filter: blur(4px); }
.rq-product-body { padding: 18px 20px 22px; }
.rq-product-title { font-size: 16px; margin-bottom: 8px; }
.rq-product-desc { font-size: 13px; color: #6a7480; line-height: 1.6; min-height: 44px; }
.rq-product-foot { display: flex; align-items: center; justify-content: space-between; font-size: 12px; padding-top: 12px; border-top: 1px dashed #e6e9ef; }
.rq-product-link { color: #1a73e8; font-weight: 600; }

/* 应用场景 */
.rq-scene-grid { max-width: 1240px; margin: 0 auto; display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; padding: 0 24px; }
.rq-scene-card { padding: 32px 28px; background: #fff; border-radius: 16px; box-shadow: 0 6px 22px rgba(20,40,80,.05); transition: all .3s ease; }
.rq-scene-card:hover { transform: translateY(-4px); box-shadow: 0 18px 40px rgba(20,40,80,.1); }
.rq-scene-icon { font-size: 36px; margin-bottom: 14px; }
.rq-scene-card h3 { font-size: 18px; margin-bottom: 8px; }
.rq-scene-card p { font-size: 14px; color: #6a7480; }

/* 公司介绍 */
.rq-about-wrap { max-width: 1240px; margin: 0 auto; display: grid; grid-template-columns: 1.4fr 1fr; gap: 50px; padding: 0 24px; }
.rq-about-text p { color: #4a5260; line-height: 1.85; }
.rq-about-list { margin-top: 18px; }
.rq-about-list li { padding: 8px 0; font-size: 14px; color: #4a5260; }
.rq-about-highlights { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; align-content: start; }
.rq-about-hl { padding: 28px 22px; border-radius: 16px; text-align: center; }
.rq-about-num { font-size: 38px; font-weight: 800; }
.rq-about-lab { font-size: 13px; opacity: .8; margin-top: 6px; }

/* FAQ */
.rq-faq-list { max-width: 980px; margin: 0 auto; padding: 0 24px; }
.rq-faq-item { background: #fff; border-radius: 14px; box-shadow: 0 4px 20px rgba(20,40,80,.05); margin-bottom: 14px; overflow: hidden; }
.rq-faq-q { display: flex; align-items: center; gap: 16px; padding: 20px 24px; cursor: pointer; }
.rq-faq-num { font-weight: 800; opacity: .5; }
.rq-faq-qtext { flex: 1; font-weight: 600; font-size: 16px; }
.rq-faq-toggle { font-size: 22px; font-weight: 300; }
.rq-faq-a { max-height: 0; overflow: hidden; transition: max-height .35s ease; }
.rq-faq-a-inner { padding: 0 24px 22px 56px; color: #4a5260; line-height: 1.85; }
.rq-faq-item.open .rq-faq-a { max-height: 600px; }

/* 联系方式 */
.rq-contact-wrap { max-width: 1080px; margin: 0 auto; display: grid; grid-template-columns: 1.4fr 1fr; gap: 36px; padding: 0 24px; align-items: stretch; }
.rq-contact-info { padding: 36px; border-radius: 18px; }
.rq-contact-item { display: flex; gap: 16px; padding: 14px 0; border-bottom: 1px solid rgba(0,0,0,.06); }
.rq-contact-item:last-child { border-bottom: 0; }
.rq-contact-lab { min-width: 90px; font-size: 13px; opacity: .7; }
.rq-contact-val { font-size: 15px; font-weight: 500; }
.rq-contact-val a:hover { color: #1a73e8; }
.rq-contact-owner { font-size: 13px; opacity: .6; margin-left: 6px; }
.rq-contact-qr { padding: 28px; border-radius: 18px; text-align: center; display: flex; flex-direction: column; justify-content: center; align-items: center; gap: 12px; }
.rq-contact-qr img { width: 200px; height: 200px; border-radius: 8px; }
.rq-contact-qr-tip { font-size: 14px; opacity: .8; }

/* 友情链接 */
.rq-section-friendlink { padding: 50px 0; }
.rq-friendlink-wrap { max-width: 1240px; margin: 0 auto; padding: 0 24px; display: grid; grid-template-columns: 1fr 1fr; gap: 36px; }
.rq-friendlink-title { font-size: 14px; font-weight: 700; margin-bottom: 14px; }
.rq-friendlink-list { display: flex; flex-wrap: wrap; gap: 8px 18px; }
.rq-friendlink-list a { font-size: 13px; color: #5a6370; padding: 4px 0; }
.rq-friendlink-list a:hover { color: #1a73e8; }

/* 底部 */
.rq-footer { background: #0f1419; color: #aab3bf; padding: 60px 0 0; }
.rq-footer-inner { max-width: 1240px; margin: 0 auto; padding: 0 24px; display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 50px; }
.rq-footer-logo { display: flex; align-items: center; gap: 10px; color: #fff; font-size: 22px; font-weight: 800; margin-bottom: 18px; }
.rq-footer .rq-logo-sub { color: #fff; }
.rq-footer .rq-logo-divider { color: #fff; opacity: .55; }
.rq-footer-brand p { font-size: 14px; line-height: 1.85; color: #8a94a2; }
.rq-footer-col-title { color: #fff; font-size: 16px; font-weight: 700; margin-bottom: 18px; }
.rq-footer-col ul li { padding: 6px 0; font-size: 14px; }
.rq-footer-col ul li a:hover { color: #fff; }
.rq-footer-bottom { background: #0a0d11; padding: 18px 0; margin-top: 50px; }
.rq-footer-bottom-inner { max-width: 1240px; margin: 0 auto; padding: 0 24px; text-align: center; }
.rq-footer-copy { font-size: 12px; color: #6a7480; line-height: 1.85; }
.rq-footer-copy a { color: #8a94a2; }
.rq-footer-copy a:hover { color: #fff; }

/* 灯箱 */
.rq-lightbox { position: fixed; inset: 0; background: rgba(0,0,0,.85); z-index: 9999; opacity: 0; visibility: hidden; transition: all .25s ease; display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 20px; }
.rq-lightbox.open { opacity: 1; visibility: visible; }
.rq-lightbox img { max-width: 92vw; max-height: 78vh; border-radius: 8px; }
.rq-lightbox-cap { color: #fff; font-size: 14px; margin-top: 14px; opacity: .8; }
.rq-lightbox-close { position: absolute; top: 22px; right: 22px; width: 44px; height: 44px; border-radius: 50%; background: rgba(255,255,255,.12); color: #fff; border: 0; font-size: 26px; }

/* 滚动入场 */
.rq-reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s ease, transform .7s ease; }
.rq-show { opacity: 1 !important; transform: translateY(0) !important; }

/* 响应式 */
@media (max-width: 1100px) {
  .rq-nav { gap: 18px; }
  .rq-nav > a, .rq-nav-item > a { font-size: 14px; }
  .rq-product-grid { grid-template-columns: repeat(3, 1fr); }
  .rq-scene-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 820px) {
  .rq-header-inner { gap: 12px; padding: 0 16px; height: 64px; }
  .rq-nav, .rq-header-phone { display: none; }
  .rq-nav-toggle { display: block; margin-left: auto; }
  .rq-banner { min-height: 520px; padding-top: 64px; }
  .rq-banner-title { font-size: 30px; }
  .rq-banner-content { padding: 40px 22px; }
  .rq-banner-quick { grid-template-columns: repeat(2, 1fr); }
  .rq-product-grid { grid-template-columns: repeat(2, 1fr); }
  .rq-scene-grid { grid-template-columns: 1fr; }
  .rq-about-wrap { grid-template-columns: 1fr; gap: 30px; }
  .rq-contact-wrap { grid-template-columns: 1fr; }
  .rq-friendlink-wrap { grid-template-columns: 1fr; }
  .rq-footer-inner { grid-template-columns: 1fr; gap: 30px; }
  .rq-section { padding: 60px 0; }
  .rq-section-title { font-size: 26px; }
  .rq-banner-dots { bottom: 130px; }
  .rq-mobile-nav { background: #fff; padding: 10px 0 20px; box-shadow: 0 6px 18px rgba(0,0,0,.08); }
}
@media (max-width: 560px) {
  .rq-product-grid { grid-template-columns: 1fr; }
  .rq-about-highlights { grid-template-columns: 1fr 1fr; }
  .rq-banner-title { font-size: 26px; }
  .rq-banner-quick-item { padding: 12px; }
  .rq-banner-quick-item span { font-size: 14px; }
  .rq-dropdown-menu-wide { min-width: 240px; grid-template-columns: repeat(2, 1fr); }
  .rq-footer-copy { font-size: 11px; }
}