/* 利昂软件静态官网 - 现代化样式 */
:root {
  --primary: #2E6BE6;
  --primary-dark: #1E4FBF;
  --primary-light: #EAF1FE;
  --accent: #F47B0B;
  --accent-light: #FEF3E6;
  --ink: #17233D;
  --muted: #5A6B87;
  --line: #E5EAF3;
  --bg-soft: #F5F8FD;
  --white: #fff;
  --grad: linear-gradient(120deg, #3B82F6 0%, #6366F1 55%, #8B5CF6 100%);
  --grad-deep: linear-gradient(135deg, #4876BD, #5448BD 50%, #8F48BD);
  --shadow-sm: 0 1px 3px rgba(23, 35, 61, .07);
  --shadow-md: 0 6px 24px rgba(23, 35, 61, .09);
  --shadow-lg: 0 16px 48px rgba(23, 35, 61, .13);
  --radius: 14px;
  --header-h: 68px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
html, body { overflow-x: hidden; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  color: var(--ink); background: var(--white);
  font-size: 16px; line-height: 1.7;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
.container { max-width: 1180px; margin: 0 auto; padding: 0 22px; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255, 255, 255, .92);
  backdrop-filter: saturate(1.4) blur(12px);
  -webkit-backdrop-filter: saturate(1.4) blur(12px);
  border-bottom: 1px solid transparent;
  transition: box-shadow .3s, border-color .3s;
}
.site-header.scrolled { border-color: var(--line); box-shadow: 0 4px 20px rgba(23,35,61,.06); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: var(--header-h); gap: 20px; }
.logo img { height: 44px; width: auto; }
.nav-list { display: flex; align-items: center; gap: 4px; }
.nav-item { position: relative; }
.nav-link {
  display: flex; align-items: center; gap: 5px;
  padding: 10px 15px; font-size: 15.5px; font-weight: 500; color: var(--ink);
  border-radius: 8px; transition: color .2s, background .2s;
}
.nav-link:hover { color: var(--primary); background: var(--primary-light); }
.nav-item.active > .nav-link { color: var(--primary); font-weight: 600; }
.nav-item.active > .nav-link::after {
  content: ""; position: absolute; left: 15px; right: 15px; bottom: 2px;
  height: 3px; border-radius: 3px; background: var(--primary);
}
.caret { transition: transform .25s; opacity: .55; }
.submenu {
  position: absolute; top: calc(100% + 10px); left: 50%; transform: translate(-50%, 6px);
  min-width: 168px; background: #fff; border-radius: 12px; padding: 8px;
  box-shadow: var(--shadow-lg); border: 1px solid var(--line);
  opacity: 0; visibility: hidden; transition: all .25s ease; z-index: 50;
  display: grid; grid-template-columns: 1fr;
}
.submenu::before { content: ""; position: absolute; top: -10px; left: 0; right: 0; height: 10px; }
.submenu li a { display: block; padding: 9px 14px; font-size: 14.5px; border-radius: 8px; white-space: nowrap; }
.submenu li a:hover { background: var(--primary-light); color: var(--primary); }
.nav-item.has-sub:hover .submenu,
.nav-item.has-sub:focus-within .submenu { opacity: 1; visibility: visible; transform: translate(-50%, 0); }
.nav-item.has-sub:hover .caret { transform: rotate(180deg); }

.nav-toggle { display: none; background: none; border: 0; width: 42px; height: 42px; cursor: pointer; border-radius: 8px; padding: 9px 10px; }
.nav-toggle span { display: block; height: 2.4px; background: var(--ink); border-radius: 2px; margin: 5px 0; transition: all .3s; }
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Hero 轮播（HTML重建banner） ---------- */
.hero { position: relative; height: clamp(400px, 31vw, 462px); overflow: hidden; background: var(--grad-deep); }
.hero-slides, .hero-slide { position: absolute; inset: 0; }
.hero-slide { opacity: 0; visibility: hidden; transition: opacity .8s ease, visibility .8s; overflow: hidden; }
.hero-slide.active { opacity: 1; visibility: visible; }
.hero-slide::before {
  content: ""; position: absolute; width: 640px; height: 640px; border-radius: 50%;
  background: radial-gradient(circle, rgba(255,255,255,.14), transparent 62%);
  top: -280px; right: -140px; pointer-events: none;
}
.hero-slide::after {
  content: ""; position: absolute; width: 460px; height: 460px; border-radius: 50%;
  background: radial-gradient(circle, rgba(255,255,255,.10), transparent 62%);
  bottom: -240px; left: -120px; pointer-events: none;
}
.hero-bg-1 { background: linear-gradient(118deg, #1E4FBF 0%, #2E6BE6 48%, #6366F1 100%); }
.hero-bg-2 { background: linear-gradient(118deg, #17233D 0%, #23407F 55%, #2E6BE6 100%); }
.hero-bg-3 { background: linear-gradient(118deg, #4331BD 0%, #6366F1 55%, #8B5CF6 100%); }
.hero-bg-4 { background: linear-gradient(118deg, #0F4C81 0%, #2266C4 52%, #5B8DEF 100%); }
.hero-bg-5 { background: linear-gradient(118deg, #101B33 0%, #1E3A6E 50%, #4331BD 100%); }
.hero-bg-6 { background: linear-gradient(118deg, #B45309 0%, #E67418 55%, #F4A30B 100%); }
.hero-grid {
  position: relative; z-index: 1; display: grid; grid-template-columns: 1.02fr .98fr;
  gap: 52px; align-items: center; height: 100%; padding-top: 12px; padding-bottom: 12px;
}
.hero-eyebrow {
  display: inline-block; font-size: 13px; letter-spacing: 3px; font-weight: 700;
  color: rgba(255,255,255,.85); border: 1px solid rgba(255,255,255,.35);
  border-radius: 999px; padding: 5px 16px; margin-bottom: 20px;
}
.hero-copy h2 { font-size: clamp(28px, 3.6vw, 44px); color: #fff; line-height: 1.25; letter-spacing: .5px; }
.hero-copy p { margin-top: 16px; color: rgba(255,255,255,.88); font-size: 16.5px; line-height: 1.8; max-width: 30em; }
.hero-cta { margin-top: 30px; display: flex; gap: 14px; flex-wrap: wrap; }
.btn-light { background: #fff; color: var(--primary-dark); box-shadow: 0 8px 24px rgba(0,0,0,.18); }
.btn-light:hover { transform: translateY(-2px); box-shadow: 0 12px 30px rgba(0,0,0,.25); }
.btn-ghost { border: 1.6px solid rgba(255,255,255,.65); color: #fff; background: transparent; }
.btn-ghost:hover { background: rgba(255,255,255,.14); border-color: #fff; }
.hero-visual { min-width: 0; }
.browser-frame {
  background: #fff; border-radius: 14px; overflow: hidden;
  box-shadow: 0 30px 70px rgba(0, 0, 0, .35);
  transform: perspective(1400px) rotateY(-5deg) rotateX(1.5deg);
  transition: transform .5s ease;
}
.hero-slide.active .browser-frame { transform: perspective(1400px) rotateY(-5deg) rotateX(1.5deg) translateY(0); }
.browser-bar {
  height: 30px; background: #EDF1F8; display: flex; align-items: center;
  gap: 6px; padding: 0 12px; border-bottom: 1px solid #DDE4EF;
}
.browser-bar i { width: 10px; height: 10px; border-radius: 50%; background: #FF5F57; }
.browser-bar i:nth-child(2) { background: #FEBC2E; }
.browser-bar i:nth-child(3) { background: #28C840; }
.browser-frame img { width: 100%; height: auto; display: block; }
.hero-arrow {
  position: absolute; top: 50%; transform: translateY(-50%);
  width: 46px; height: 46px; border-radius: 50%; border: 0; cursor: pointer;
  background: rgba(255,255,255,.22); color: #fff; backdrop-filter: blur(6px);
  display: grid; place-items: center; opacity: 0; transition: all .3s; z-index: 5;
}
.hero:hover .hero-arrow { opacity: 1; }
.hero-arrow:hover { background: rgba(255,255,255,.42); }
.hero-arrow.prev { left: 18px; }
.hero-arrow.next { right: 18px; }
.hero-dots { position: absolute; bottom: 20px; left: 0; right: 0; display: flex; justify-content: center; gap: 9px; z-index: 5; }
.dot { width: 9px; height: 9px; border-radius: 9px; border: 0; background: rgba(255,255,255,.45); cursor: pointer; transition: all .3s; padding: 0; }
.dot.active { width: 26px; background: #fff; }

/* ---------- 通用 Section ---------- */
.section { padding: 72px 0; }
.section[id] { scroll-margin-top: 96px; }
.section:nth-of-type(even of .section) { background: var(--bg-soft); }
.sec-head { text-align: center; max-width: 640px; margin: 0 auto 44px; }
.sec-en { display: inline-block; font-size: 13px; letter-spacing: 3px; color: var(--accent); font-weight: 700; text-transform: uppercase; margin-bottom: 6px; }
.sec-title { font-size: clamp(24px, 3.4vw, 34px); font-weight: 700; position: relative; padding-bottom: 16px; }
.sec-title::after { content: ""; position: absolute; left: 50%; transform: translateX(-50%); bottom: 0; width: 44px; height: 4px; border-radius: 4px; background: var(--grad); }
.sec-sub { color: var(--muted); margin-top: 14px; font-size: 16px; text-wrap: balance; }
.section-more { text-align: center; margin-top: 40px; }

.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 30px; border-radius: 999px; font-size: 15.5px; font-weight: 600;
  transition: all .25s; cursor: pointer; border: 0;
}
.btn-primary { background: var(--grad); color: #fff; box-shadow: 0 8px 22px rgba(59, 100, 246, .35); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 30px rgba(59, 100, 246, .45); }
.btn-outline { border: 1.6px solid var(--primary); color: var(--primary); background: transparent; }
.btn-outline:hover { background: var(--primary); color: #fff; }

/* ---------- 应用场景 ---------- */
.scene-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.scene-card {
  border-radius: var(--radius); overflow: hidden; background: #fff;
  box-shadow: var(--shadow-sm); border: 1px solid var(--line);
  transition: transform .3s, box-shadow .3s;
}
.scene-card:hover { transform: translateY(-7px); box-shadow: var(--shadow-lg); }
.scene-img { overflow: hidden; aspect-ratio: 4 / 2.7; }
.scene-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s; }
.scene-card:hover .scene-img img { transform: scale(1.06); }
.scene-card h3 { text-align: center; padding: 16px 12px 4px; font-size: 18px; }
.scene-more { display: block; text-align: center; padding: 0 12px 16px; font-size: 13.5px; color: var(--primary); opacity: 0; transform: translateY(4px); transition: all .3s; }
.scene-card:hover .scene-more { opacity: 1; transform: none; }

/* ---------- 服务 ---------- */
.service-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.service-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 30px 26px; transition: all .3s; position: relative; overflow: hidden;
}
.service-card::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: var(--grad); transform: scaleX(0); transform-origin: left; transition: transform .35s;
}
.service-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
.service-card:hover::before { transform: scaleX(1); }
.service-icon {
  width: 54px; height: 54px; border-radius: 14px; display: grid; place-items: center;
  background: var(--primary-light); color: var(--primary); margin-bottom: 18px;
}
.service-card h3 { font-size: 19px; margin-bottom: 10px; }
.service-card p { color: var(--muted); font-size: 15px; }
.service-bullets { margin-top: 14px; border-top: 1px dashed var(--line); padding-top: 14px; }
.service-bullets li {
  position: relative; padding-left: 18px; font-size: 13.5px; color: var(--muted);
  margin-bottom: 8px; line-height: 1.6;
}
.service-bullets li::before {
  content: ""; position: absolute; left: 2px; top: 9px; width: 6px; height: 6px;
  border-radius: 50%; background: var(--grad);
}
.service-note {
  margin-top: 34px; display: flex; gap: 28px; align-items: center;
  background: var(--bg-soft); border-radius: var(--radius); padding: 24px;
}
.service-note img { width: 300px; border-radius: 10px; flex: none; }
.service-note p { color: var(--muted); font-size: 15.5px; }

/* ---------- 服务流程 ---------- */
.flow-line { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; counter-reset: flow; }
.flow-step {
  position: relative; background: #fff; border: 1px solid var(--line);
  border-radius: var(--radius); padding: 24px 20px; transition: all .3s;
}
.flow-step:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); }
.flow-num {
  width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center;
  background: var(--grad); color: #fff; font-weight: 800; font-size: 17px;
  margin-bottom: 14px; box-shadow: 0 6px 16px rgba(59, 100, 246, .3);
}
.flow-step h3 { font-size: 16.5px; margin-bottom: 8px; }
.flow-step p { font-size: 13.5px; color: var(--muted); line-height: 1.7; }

/* ---------- 图集标题 ---------- */
.gallery-card, .sol-img { position: relative; }
.gallery-card figcaption, .sol-img figcaption {
  position: absolute; left: 14px; bottom: 14px; z-index: 2;
  background: rgba(16, 27, 51, .72); color: #fff; backdrop-filter: blur(6px);
  font-size: 13.5px; font-weight: 600; letter-spacing: 2px;
  padding: 6px 14px; border-radius: 999px;
}
.gallery-card img { display: block; }

/* ---------- 数据带 ---------- */
.stats-band { background: var(--grad-deep); padding: 64px 0; color: #fff; position: relative; overflow: hidden; }
.stats-band::after {
  content: ""; position: absolute; width: 480px; height: 480px; border-radius: 50%;
  background: radial-gradient(circle, rgba(255,255,255,.14), transparent 65%);
  top: -220px; right: -120px;
}
.stats-head { text-align: center; margin-bottom: 42px; }
.stats-head h2 { font-size: clamp(22px, 3vw, 30px); }
.stats-head p { opacity: .85; margin-top: 8px; }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; text-align: center; position: relative; z-index: 1; }
.stat-num { font-size: clamp(30px, 4.4vw, 48px); font-weight: 800; font-family: "DIN Alternate", "Helvetica Neue", sans-serif; letter-spacing: 1px; }
.stat-label { margin-top: 6px; opacity: .88; font-size: 15px; }

/* ---------- 解决方案展示图（solutions页顶部，三等分统一比例） ---------- */
.sol-showcase { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-bottom: 40px; }
.sol-img { border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-md); background: var(--bg-soft); }
.sol-img img { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; transition: transform .5s; display: block; }
.sol-img:hover img { transform: scale(1.05); }

/* ---------- 服务场景图集（service页，三等分统一比例） ---------- */
.service-gallery { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.service-gallery img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; border-radius: var(--radius); box-shadow: var(--shadow-md); transition: transform .4s; display: block; }
.service-gallery img:hover { transform: translateY(-4px); }

/* ---------- 首页解决方案：特色案例 + 紧凑卡片 ---------- */
.case-feature {
  display: grid; grid-template-columns: 460px 1fr; gap: 0;
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden; margin-bottom: 22px; transition: all .3s; box-shadow: var(--shadow-sm);
}
.case-feature:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); }
.case-feature-img { min-height: 100%; }
.case-feature-img img { width: 100%; height: 100%; object-fit: cover; aspect-ratio: 16 / 10.5; }
.case-feature-body { padding: 30px 34px; display: flex; flex-direction: column; }
.case-feature-tag {
  align-self: flex-start; font-size: 12.5px; font-weight: 700; letter-spacing: 2px;
  color: var(--accent); background: var(--accent-light); border-radius: 6px; padding: 3px 10px;
  margin-bottom: 14px;
}
.case-feature-body h3 { font-size: 21px; line-height: 1.45; transition: color .2s; }
.case-feature:hover h3 { color: var(--primary); }
.case-feature-body p { margin-top: 12px; color: var(--muted); font-size: 15px; line-height: 1.8; flex: 1; }
.case-feature-body .case-meta { margin-top: 18px; justify-content: flex-start; gap: 22px; }

.mini-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.mini-card {
  background: #fff; border: 1px solid var(--line); border-radius: 12px;
  padding: 20px 22px; display: flex; flex-direction: column; transition: all .3s;
}
.mini-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--primary-light); }
.mini-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.mini-head h3 { font-size: 16.5px; transition: color .2s; }
.mini-card:hover h3 { color: var(--primary); }
.mini-arrow { color: var(--primary); opacity: 0; transform: translateX(-4px); transition: all .25s; font-weight: 700; }
.mini-card:hover .mini-arrow { opacity: 1; transform: none; }
.mini-card p { margin-top: 8px; color: var(--muted); font-size: 13.5px; line-height: 1.7; flex: 1; min-height: 2.6em; }
.mini-card time { margin-top: 12px; font-size: 12.5px; color: #93A1B8; }

/* ---------- 页面 Banner ---------- */
.page-banner {
  background: var(--grad-deep); color: #fff; text-align: center;
  padding: 74px 0 66px; position: relative; overflow: hidden;
}
.page-banner::before, .page-banner::after {
  content: ""; position: absolute; border-radius: 50%;
  background: radial-gradient(circle, rgba(255,255,255,.16), transparent 65%);
}
.page-banner::before { width: 420px; height: 420px; top: -190px; left: -110px; }
.page-banner::after { width: 520px; height: 520px; bottom: -320px; right: -140px; }
.page-banner h1 { font-size: clamp(28px, 4.4vw, 42px); font-weight: 700; position: relative; }
.page-banner p { margin-top: 12px; opacity: .88; font-size: 16.5px; position: relative; }

/* ---------- 分隔标题 ---------- */
.divider { display: flex; align-items: center; justify-content: center; gap: 22px; padding: 26px 22px 8px; }
.divider h2 { font-size: clamp(20px, 2.6vw, 26px); color: var(--ink); white-space: nowrap; }
.divider-line { height: 1px; flex: 1; max-width: 260px; background: linear-gradient(90deg, transparent, #C9D5EA); }
.divider-line:last-child { background: linear-gradient(90deg, #C9D5EA, transparent); }

/* ---------- 特性（图+文） ---------- */
.feature {
  display: grid; grid-template-columns: 1fr 1fr; gap: 44px; align-items: center;
  max-width: 1080px; margin: 0 auto; padding: 40px 22px;
}
.feature.flip .feature-img { order: 2; }
.feature.no-img { grid-template-columns: 1fr; max-width: 860px; }
.feature-img { border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-md); background: #fff; }
.feature-img img { width: 100%; }
.feature-txt h3 { font-size: clamp(20px, 2.6vw, 25px); margin-bottom: 14px; }
.feature-txt p { color: var(--muted); font-size: 15.5px; }
.ft-num {
  display: inline-block; font-size: 14px; font-weight: 800; color: var(--accent);
  background: var(--accent-light); border-radius: 8px; padding: 2px 10px; margin-bottom: 12px;
  letter-spacing: 1px;
}

/* ---------- 图标网格 ---------- */
.ig-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; max-width: 1080px; margin: 30px auto 0; }
.ig-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 26px 24px; transition: all .3s;
}
.ig-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); border-color: transparent; }
.ig-icon {
  width: 46px; height: 46px; border-radius: 12px; display: grid; place-items: center;
  background: var(--accent-light); color: var(--accent); margin-bottom: 14px;
}
.ig-icon .ig-num { font-size: 15px; font-weight: 800; letter-spacing: .5px; }
.ig-card h3 { font-size: 17px; margin-bottom: 8px; }
.ig-card p { color: var(--muted); font-size: 14px; }

/* ---------- 内容图 ---------- */
.content-imgs { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; max-width: 1080px; margin: 26px auto 0; }
.content-imgs.single { grid-template-columns: 1fr; max-width: 920px; }
.content-imgs img { border-radius: var(--radius); box-shadow: var(--shadow-md); width: 100%; }
.rich-text { max-width: 880px; margin: 0 auto; color: var(--muted); }
.rich-text p { margin-bottom: 12px; }

/* ---------- 圆形卡片（静音舱特色） ---------- */
.circle-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 26px; max-width: 1000px; margin: 0 auto; }
.circle-card { background: #fff; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-sm); border: 1px solid var(--line); transition: all .3s; }
.circle-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); }
.circle-img { aspect-ratio: 16 / 10; overflow: hidden; }
.circle-img img { width: 100%; height: 100%; object-fit: cover; }
.circle-card h3 { padding: 15px 18px 4px; font-size: 17px; text-align: center; }
.circle-desc { padding: 0 18px 18px; font-size: 14px; color: var(--muted); text-align: center; }

/* ---------- 案例/新闻卡片 ---------- */
.case-grid, .news-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.case-card, .news-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden; transition: all .3s; display: flex; flex-direction: column;
}
.case-card:hover, .news-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
.news-card { flex-direction: row; }
.news-img { width: 220px; flex: none; overflow: hidden; }
.news-img img { width: 100%; height: 100%; object-fit: cover; }
.case-body, .news-body { padding: 22px 24px; display: flex; flex-direction: column; flex: 1; }
.case-body h3, .news-body h3 { font-size: 17.5px; line-height: 1.5; margin-bottom: 10px; transition: color .2s; }
.case-card:hover h3, .news-card:hover h3 { color: var(--primary); }
.case-body p, .news-body p { color: var(--muted); font-size: 14px; flex: 1; }
.case-meta { margin-top: 16px; display: flex; justify-content: space-between; align-items: center; font-size: 13px; color: #93A1B8; }
.case-link { color: var(--primary); font-weight: 600; }

/* ---------- 合作伙伴墙（利昂朋友） ---------- */
.friend-wall { display: grid; grid-template-columns: repeat(6, 1fr); gap: 16px; }
.friend-item {
  background: #fff; border: 1px solid var(--line); border-radius: 12px;
  padding: 18px; display: grid; place-items: center; transition: all .3s; min-height: 96px;
}
.friend-item:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--primary-light); }
.friend-item img { max-height: 72px; width: auto; object-fit: contain; }
.friend-item .fname { font-size: 14px; font-weight: 600; color: #2A3A55; text-align: center; line-height: 1.55; letter-spacing: .3px; padding: 6px 4px; }
.friend-item:hover .fname { color: var(--primary); }

/* ---------- 文章页 ---------- */
.article-wrap { padding: 46px 0 72px; }
.crumb { font-size: 14px; color: var(--muted); margin-bottom: 22px; }
.crumb a:hover { color: var(--primary); }
.crumb span { color: var(--ink); }
.article {
  max-width: 880px; margin: 0 auto; background: #fff;
  border: 1px solid var(--line); border-radius: var(--radius);
  padding: clamp(24px, 4vw, 48px); box-shadow: var(--shadow-sm);
}
.art-head h1 { font-size: clamp(22px, 3.2vw, 30px); line-height: 1.45; }
.art-meta { margin-top: 12px; color: #93A1B8; font-size: 14px; padding-bottom: 20px; border-bottom: 1px solid var(--line); }
.art-remarks { margin-top: 20px; background: var(--bg-soft); border-left: 3px solid var(--primary); border-radius: 0 10px 10px 0; padding: 14px 18px; color: var(--muted); font-size: 15px; }
.art-content { margin-top: 26px; }
.art-content h2 { font-size: 20px; margin: 30px 0 14px; padding-left: 12px; border-left: 4px solid var(--primary); }
.art-content p { margin-bottom: 14px; color: #3D4A63; font-size: 15.5px; }
.art-content img { margin: 18px auto; border-radius: 10px; box-shadow: var(--shadow-sm); }

/* ---------- 联系我们 ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 360px; gap: 40px; align-items: start; }
.contact-about { text-align: left; }
.contact-about .sec-title { padding-bottom: 14px; }
.contact-about .sec-title::after { left: 0; transform: none; }
.contact-about p { color: var(--muted); margin-bottom: 14px; text-align: justify; }
.contact-card {
  background: var(--grad-deep); color: #fff; border-radius: var(--radius);
  padding: 30px 28px; position: sticky; top: calc(var(--header-h) + 20px);
}
.contact-card h3 { font-size: 20px; margin-bottom: 18px; }
.contact-card li { display: flex; gap: 10px; margin-bottom: 14px; font-size: 15px; opacity: .95; }
.contact-card li strong { flex: none; opacity: .75; font-weight: 500; }
.contact-card a:hover { text-decoration: underline; }
.contact-qr { display: flex; gap: 18px; margin-top: 22px; }
.contact-qr img { width: 96px; border-radius: 8px; background: #fff; padding: 4px; }
.contact-qr figcaption { font-size: 12.5px; text-align: center; margin-top: 6px; opacity: .8; }

/* ---------- Footer ---------- */
.footer { background: #101B33; color: #B8C4DA; margin-top: 20px; }
.footer a { transition: color .2s; }
.footer a:hover { color: #fff; }
.footer-grid {
  display: grid; grid-template-columns: 1.5fr .8fr .8fr 1.2fr;
  gap: 38px; padding: 54px 22px 40px;
}
.footer-logo img { height: 42px; width: auto; border-radius: 6px; background: #fff; padding: 5px 8px; }
.footer-about { margin-top: 16px; font-size: 14px; line-height: 1.8; opacity: .85; }
.footer-qr { display: flex; gap: 16px; margin-top: 18px; }
.footer-qr img { width: 84px; border-radius: 8px; background: #fff; padding: 3px; }
.footer-qr figcaption { font-size: 12px; text-align: center; margin-top: 5px; opacity: .75; }
.footer-col h4 { color: #fff; font-size: 16px; margin-bottom: 18px; position: relative; padding-bottom: 10px; }
.footer-col h4::after { content: ""; position: absolute; left: 0; bottom: 0; width: 26px; height: 3px; border-radius: 3px; background: var(--accent); }
.footer-col li { margin-bottom: 10px; font-size: 14px; }
.footer-col li .ic { width: 15px; height: 15px; flex: none; margin-top: 5px; opacity: .7; }
.footer-contact li { display: flex; gap: 9px; }
.footer-bar { border-top: 1px solid rgba(255,255,255,.09); padding: 18px 0; font-size: 13.5px; text-align: center; }
.footer-bar .container { opacity: .65; }

/* ---------- 产品总览页 ---------- */
.cat-chips { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; margin-bottom: 46px; }
.cat-chip {
  padding: 9px 22px; border-radius: 999px; font-size: 14.5px; font-weight: 600;
  background: var(--bg-soft); color: var(--muted); border: 1px solid var(--line);
  transition: all .25s;
}
.cat-chip:hover { background: var(--primary); border-color: var(--primary); color: #fff; transform: translateY(-2px); }

.cat-block { margin-bottom: 58px; scroll-margin-top: calc(var(--header-h) + 16px); }
.cat-head {
  display: flex; align-items: center; gap: 22px;
  background: var(--grad-deep); border-radius: var(--radius);
  padding: 20px 26px; margin-bottom: 24px; color: #fff;
  box-shadow: var(--shadow-md); overflow: hidden; position: relative;
}
.cat-img { flex: none; width: 132px; border-radius: 10px; overflow: hidden; }
.cat-img img { display: block; width: 100%; height: 86px; object-fit: cover; }
.cat-idx { font-size: 13px; letter-spacing: 3px; font-weight: 800; opacity: .75; }
.cat-info h2 { font-size: clamp(19px, 2.4vw, 24px); margin-top: 2px; }
.cat-info p { margin-top: 4px; font-size: 14px; opacity: .85; }

.prod-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.prod-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 24px 26px 18px; display: flex; flex-direction: column;
  transition: all .3s; position: relative; overflow: hidden;
}
.prod-card::before {
  content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 4px;
  background: var(--grad); opacity: 0; transition: opacity .3s;
}
.prod-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: transparent; }
.prod-card:hover::before { opacity: 1; }
.prod-top { display: flex; align-items: center; gap: 14px; margin-bottom: 14px; }
.prod-num {
  flex: none; font-size: 13px; font-weight: 800; letter-spacing: 1px;
  color: var(--primary); background: var(--primary-light);
  border-radius: 8px; padding: 4px 9px;
}
.prod-top h3 { font-size: 17.5px; line-height: 1.45; }
.prod-feat { flex: 1; }
.prod-feat li {
  position: relative; padding-left: 16px; font-size: 14px; color: var(--muted);
  line-height: 1.65; margin-bottom: 7px;
}
.prod-feat li::before {
  content: ""; position: absolute; left: 0; top: 9px; width: 6px; height: 6px;
  border-radius: 50%; background: var(--accent);
}
.prod-foot { margin-top: 12px; padding-top: 12px; border-top: 1px dashed var(--line); }
.prod-more { font-size: 14px; font-weight: 600; color: var(--primary); }
.prod-more span { display: inline-block; transition: transform .25s; }
.prod-more:hover span { transform: translateX(4px); }
.prod-none { font-size: 13px; color: #93A1B8; }

.prod-cta {
  margin-top: 10px; background: var(--grad-deep); border-radius: var(--radius);
  padding: 36px 40px; display: flex; align-items: center; justify-content: space-between;
  gap: 24px; color: #fff; position: relative; overflow: hidden;
}
.prod-cta::after {
  content: ""; position: absolute; width: 320px; height: 320px; border-radius: 50%;
  background: radial-gradient(circle, rgba(255,255,255,.14), transparent 65%);
  right: -120px; top: -140px;
}
.prod-cta h2 { font-size: clamp(19px, 2.6vw, 25px); }
.prod-cta p { margin-top: 8px; opacity: .9; font-size: 15px; }
.prod-cta .hotline { color: #FFD9A8; font-weight: 800; font-size: 1.12em; letter-spacing: 1px; }
.prod-cta .hotline:hover { text-decoration: underline; }
.prod-cta .btn { position: relative; z-index: 1; flex: none; background: #fff; color: var(--primary-dark); }

/* ---------- 返回顶部 ---------- */
.backtop {
  position: fixed; right: 26px; bottom: 30px; width: 46px; height: 46px;
  border-radius: 50%; border: 0; background: var(--primary); color: #fff;
  box-shadow: 0 8px 22px rgba(46, 107, 230, .4); cursor: pointer;
  display: grid; place-items: center; opacity: 0; visibility: hidden;
  transform: translateY(10px); transition: all .3s; z-index: 90;
}
.backtop.show { opacity: 1; visibility: visible; transform: none; }
.backtop:hover { background: var(--primary-dark); }

/* ---------- 滚动动效：为保证任何环境下内容立即可见，不做入场透明动画 ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .scene-grid { grid-template-columns: repeat(2, 1fr); }
  .mini-grid { grid-template-columns: repeat(2, 1fr); }
  .ig-grid { grid-template-columns: repeat(2, 1fr); }
  .friend-wall { grid-template-columns: repeat(4, 1fr); }
  .contact-grid { grid-template-columns: 1fr; }
  .contact-card { position: static; }
  .case-feature { grid-template-columns: 380px 1fr; }
  .hero-grid { gap: 36px; }
  .flow-line { grid-template-columns: repeat(2, 1fr); }
  .service-gallery, .sol-showcase { grid-template-columns: repeat(2, 1fr); }
  .prod-grid { grid-template-columns: 1fr; }
}
@media (max-width: 820px) {
  .nav {
    position: fixed; top: var(--header-h); left: 0; right: 0; bottom: 0;
    background: #fff; padding: 16px 22px 40px; overflow-y: auto;
    transform: translateX(100%); transition: transform .3s ease; z-index: 99;
  }
  .nav.open { transform: none; }
  /* 菜单展开时移除头部backdrop-filter，避免其成为fixed导航的包含块导致面板塌陷 */
  body.menu-open .site-header { backdrop-filter: none; -webkit-backdrop-filter: none; }
  .nav-list { flex-direction: column; align-items: stretch; gap: 2px; }
  .nav-link { padding: 14px 12px; font-size: 16px; border-radius: 10px; justify-content: space-between; }
  .nav-item.active > .nav-link::after { display: none; }
  .nav-item.active > .nav-link { background: var(--primary-light); }
  .submenu {
    position: static; transform: none; opacity: 1; visibility: visible;
    box-shadow: none; border: 0; padding: 0 0 0 14px; min-width: 0;
    display: none;
  }
  .nav-item.sub-open .submenu { display: grid; }
  .nav-toggle { display: block; }
  /* Hero：移动端改为内容自适应高度，活动slide撑开高度，其余绝对定位淡入淡出 */
  .hero { height: auto; }
  .hero-slides { position: relative; inset: auto; }
  .hero-slide { position: absolute; inset: auto; }
  .hero-slide.active { position: relative; }
  .hero-grid { grid-template-columns: 1fr; gap: 26px; padding: 44px 22px 52px; }
  .hero-copy h2 { font-size: 26px; }
  .hero-copy p { font-size: 15px; margin-top: 12px; }
  .hero-eyebrow { margin-bottom: 14px; }
  .hero-cta { margin-top: 22px; }
  .hero-visual { display: none; }
  .hero-dots { bottom: 14px; }
  .section { padding: 52px 0; }
  .service-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 30px 12px; }
  .case-grid, .news-list { grid-template-columns: 1fr; }
  .mini-grid { grid-template-columns: 1fr; }
  .prod-grid { grid-template-columns: 1fr; }
  .prod-cta { flex-direction: column; text-align: center; padding: 30px 22px; }
  .cat-head { flex-direction: column; text-align: center; align-items: center; }
  .cat-img { width: 100%; }
  .cat-img img { height: 120px; }
  .service-gallery { grid-template-columns: 1fr; }
  .flow-line { grid-template-columns: 1fr; }
  .feature { grid-template-columns: 1fr; gap: 22px; padding: 26px 22px; }
  .feature.flip .feature-img { order: 0; }
  .news-card { flex-direction: column; }
  .news-img { width: 100%; aspect-ratio: 16/8; }
  .circle-grid { grid-template-columns: 1fr; }
  .friend-wall { grid-template-columns: repeat(3, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 30px; }
  .content-imgs { grid-template-columns: 1fr; }
  .service-note { flex-direction: column; }
  .service-note img { width: 100%; }
}
@media (max-width: 480px) {
  .scene-grid { grid-template-columns: 1fr; }
  .ig-grid { grid-template-columns: 1fr; }
  .friend-wall { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr; }
  .logo img { height: 38px; }
}
/* ---------- 移动端页脚压缩：导航链接多列流式，避免页脚过长 ---------- */
@media (max-width: 640px) {
  .footer-grid { grid-template-columns: 1fr; gap: 4px; padding: 32px 18px 24px; }
  .footer-col h4 { margin-bottom: 6px; padding-bottom: 7px; font-size: 15px; }
  .footer-col ul { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 1px 10px; }
  .footer-col li { margin-bottom: 1px; font-size: 13.5px; line-height: 1.9; }
  .footer-contact ul { grid-template-columns: 1fr; gap: 0; }
  .footer-contact li { margin-bottom: 6px; }
  .footer-about { margin-top: 10px; font-size: 13px; line-height: 1.7; }
  .footer-qr { margin-top: 12px; gap: 12px; }
  .footer-qr img { width: 70px; }
  .footer-bar { padding: 12px 0; font-size: 12px; }
}

/* 四列优势网格 */
.ig-grid.cols-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 1024px) { .ig-grid.cols-4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px) { .ig-grid.cols-4 { grid-template-columns: 1fr; } }

/* ---------- 座位预约产品页 ---------- */
.zw-page { padding: 10px 0 30px; }
.zw-values .ig-card .ig-head .ig-dot { border-radius: 50%; }
.zw-perf { display: grid; grid-template-columns: 280px 1fr; gap: 24px; align-items: stretch;
  background: linear-gradient(135deg, #F4F7FE, #F8F5FC); border: 1px solid #E3EAF8; border-radius: 16px; padding: 28px; }
.zw-perf .zw-stat { display: flex; flex-direction: column; justify-content: center; align-items: center; text-align: center; }
.zw-perf .zw-stat b { font-size: 52px; font-weight: 800; color: var(--primary); letter-spacing: 1px; }
.zw-perf .zw-stat span { margin-top: 8px; font-size: 14px; color: #6B7A93; }
.zw-perf-charts { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.zw-perf-charts .art-fig { margin: 0; background: #fff; border-radius: 12px; padding: 10px; border: 1px solid var(--line); }
.zw-perf-charts .art-fig img { border-radius: 8px; }
.zw-perf-charts figcaption { font-size: 12.5px; color: #93A1B8; text-align: center; margin-top: 6px; }
.zw-signs { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; margin-top: 6px; }
.zw-sign-card { background: #fff; border: 1px solid var(--line); border-radius: 16px; padding: 24px; box-shadow: var(--shadow-sm); }
.zw-sign-card h3 { font-size: 18px; margin: 14px 0 8px; }
.zw-sign-card p { color: var(--muted); font-size: 14.5px; line-height: 1.75; }
.zw-sign-imgs { display: flex; gap: 12px; align-items: flex-start; }
.zw-sign-imgs img { border-radius: 10px; border: 1px solid var(--line); }
.zw-sign-imgs img:nth-child(1) { flex: 0 0 42%; }
.zw-sign-imgs img:nth-child(2) { flex: 1; align-self: stretch; object-fit: cover; }
.zw-chips { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 14px; }
.zw-chip { font-size: 13px; color: #33507E; background: var(--primary-light); border-radius: 999px; padding: 6px 14px; }
.zw-arch { display: flex; align-items: center; justify-content: center; gap: 18px; margin: 26px auto;
  background: linear-gradient(135deg, #F4F7FE, #F8F5FC); border: 1px solid #E3EAF8; border-radius: 16px; padding: 30px 24px; flex-wrap: wrap; }
.zw-arch-side, .zw-arch-core { display: flex; flex-direction: column; gap: 12px; align-items: stretch; }
.zw-arch-core { gap: 16px; }
.zw-node { background: #fff; border: 1.5px solid #C9D8F2; border-radius: 12px; padding: 12px 22px; text-align: center;
  font-size: 14.5px; font-weight: 600; color: #2A3A55; min-width: 150px; }
.zw-node small { display: block; font-size: 12px; color: #7C8AA5; font-weight: 500; margin-top: 2px; }
.zw-node-user { background: var(--primary); border-color: var(--primary); color: #fff; }
.zw-node-core { background: #EAF1FE; border-color: var(--primary); color: var(--primary); }
.zw-arrow { text-align: center; color: #8FA8D8; font-size: 20px; font-weight: 700; }
.zw-arrow-h { font-size: 26px; }
.zw-phones { display: flex; gap: 14px; justify-content: center; margin: 18px 0; }
.zw-phones figure { margin: 0; width: 31%; max-width: 240px; }
.zw-phones img { border-radius: 14px; border: 1px solid var(--line); box-shadow: var(--shadow-sm); width: 100%; }
.zw-lead { color: var(--muted); font-size: 15.5px; max-width: 46em; margin: 0 auto 22px; text-align: center; }
.zw-case-note { color: var(--muted); font-size: 14.5px; line-height: 1.8; max-width: 46em; margin: 14px auto 0; text-align: center; }
.cta-band { margin: 46px 0 10px; padding: 34px 28px; border-radius: 18px; text-align: center;
  background: linear-gradient(135deg, var(--grad-deep)); color: #fff; }
.cta-band h3 { font-size: 22px; margin-bottom: 6px; }
.cta-band p { color: rgba(255,255,255,.85); margin-bottom: 18px; font-size: 15px; }
.cta-band .btn-primary { background: #fff; color: var(--primary); border-radius: 999px; padding: 11px 34px; font-weight: 700; display: inline-block; }
@media (max-width: 900px) {
  .zw-perf { grid-template-columns: 1fr; }
  .zw-perf-charts { grid-template-columns: 1fr; }
  .zw-signs { grid-template-columns: 1fr; }
  .zw-arch { flex-direction: column; }
  .zw-arrow-h { transform: rotate(90deg); }
  .zw-arch-side, .zw-arch-core { flex-direction: row; flex-wrap: wrap; justify-content: center; }
  .zw-phones { flex-wrap: wrap; }
  .zw-phones figure { width: 46%; }
}

/* 案例文章meta */
.art-tag {
  display: inline-block; font-size: 12.5px; font-weight: 700; letter-spacing: 1px;
  color: var(--primary); background: var(--primary-light); border-radius: 6px;
  padding: 3px 10px; margin-right: 12px; vertical-align: 1px;
}
.art-meta time { margin-left: 4px; }
.art-fig { margin: 22px 0; }
.art-fig figcaption { text-align: center; font-size: 13px; color: #93A1B8; margin-top: 8px; }

/* 案例文章数据条 */
.art-stats {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px;
  margin: 26px 0 10px; padding: 24px 20px;
  background: linear-gradient(135deg, #F4F7FE, #F8F5FC);
  border: 1px solid #E3EAF8; border-radius: 14px;
}
.art-stats .stat { text-align: center; position: relative; }
.art-stats .stat + .stat::before {
  content: ''; position: absolute; left: -7px; top: 12%; height: 76%;
  width: 1px; background: #DDE6F5;
}
.art-stats .stat b { display: block; font-size: 25px; font-weight: 700; color: var(--primary); letter-spacing: .3px; }
.art-stats .stat span { display: block; margin-top: 5px; font-size: 12.5px; color: #6B7A93; }
@media (max-width: 820px) {
  .art-stats { grid-template-columns: repeat(2, 1fr); gap: 20px 10px; }
  .art-stats .stat:nth-child(3)::before { display: none; }
}
.zw-page .flow-line { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 1024px) { .zw-page .flow-line { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .zw-page .flow-line { grid-template-columns: 1fr; } }
/* 座位预约页缺陷修复 */
.zw-sign-imgs { min-width: 0; }
.zw-sign-imgs img { min-width: 0; object-fit: cover; }
.zw-sign-imgs img:nth-child(1) { flex: 0 0 46%; height: 210px; object-position: center top; }
.zw-sign-imgs img:nth-child(2) { flex: 1; height: 210px; }
.content-imgs.cols-3 { grid-template-columns: repeat(3, 1fr); max-width: 1080px; }
@media (max-width: 900px) { .content-imgs.cols-3 { grid-template-columns: 1fr; } }
.zw-page .content-imgs img { aspect-ratio: auto; object-fit: contain; background: #fff; }
.cta-band { background: var(--grad-deep); }
.bd-page .flow-line { grid-template-columns: repeat(3, 1fr); }
.ig-grid.cols-2 { grid-template-columns: repeat(2, 1fr); max-width: 1080px; }
@media (max-width: 900px) { .ig-grid.cols-2 { grid-template-columns: 1fr; } .bd-page .flow-line { grid-template-columns: 1fr; } }
.bd-page .content-imgs { align-items: start; }
.bd-page .content-imgs .sol-img { aspect-ratio: auto; height: auto; }
.bd-page .content-imgs .sol-img img { aspect-ratio: auto; height: auto; object-fit: contain; }
.iot-page .flow-line { grid-template-columns: repeat(3, 1fr); }
@media (max-width: 900px) { .iot-page .flow-line { grid-template-columns: 1fr; } }
.flow-line { max-width: 1080px; margin-left: auto; margin-right: auto; }

/* ---------- 联系我们（新版） ---------- */
.focus-lead { max-width: 880px; margin: 0 auto; }
.focus-lead p { color: var(--muted); font-size: 16px; line-height: 2; text-align: center; }
.story-quote { max-width: 860px; margin: 28px auto 0; text-align: center; padding: 26px 30px; border-radius: var(--radius); background: linear-gradient(135deg,#EEF3FB,#F7FAFF); border: 1px solid var(--line); }
.story-quote p { font-size: 17px; font-weight: 600; color: var(--ink); }
.story-quote span { display: block; margin-top: 8px; font-size: 13px; color: var(--muted); letter-spacing: 2px; }
.contact-cards { display: grid; grid-template-columns: repeat(4,1fr); gap: 18px; max-width: 1080px; margin: 26px auto 0; }
.contact-info-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 24px 18px; text-align: center; box-shadow: var(--shadow-sm); transition: transform .3s, box-shadow .3s; }
.contact-info-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.contact-info-card .ci-icon { width: 44px; height: 44px; margin: 0 auto 12px; border-radius: 12px; background: var(--grad-deep); color: #fff; display: flex; align-items: center; justify-content: center; }
.contact-info-card .ci-icon svg { width: 20px; height: 20px; }
.contact-info-card h4 { font-size: 13.5px; color: var(--muted); font-weight: 500; margin-bottom: 7px; }
.contact-info-card p, .contact-info-card a { font-size: 14.5px; font-weight: 600; color: var(--ink); word-break: break-all; }
.contact-info-card a:hover { color: var(--accent); }
.contact-qr-row { display: flex; gap: 30px; justify-content: center; margin-top: 28px; }
.contact-qr-row figure { text-align: center; }
.contact-qr-row img { width: 118px; border-radius: 10px; background: #fff; padding: 5px; box-shadow: var(--shadow-sm); border: 1px solid var(--line); }
.contact-qr-row figcaption { font-size: 13px; margin-top: 8px; color: var(--muted); }
@media (max-width: 900px) { .contact-cards { grid-template-columns: repeat(2,1fr); } }
@media (max-width: 480px) { .contact-cards { grid-template-columns: 1fr; } .contact-qr-row { gap: 20px; } }

/* ---------- 富信息页头（解决方案页） ---------- */
.page-banner-rich { padding: 58px 0 62px; text-align: left; }
.page-banner-rich::before { width: 520px; height: 520px; top: -240px; left: -150px; }
.page-banner-rich::after { width: 560px; height: 560px; bottom: -330px; right: -160px; }
.br-inner { position: relative; display: grid; grid-template-columns: 1.35fr .95fr; gap: 46px; align-items: center; }
.br-eyebrow { display: inline-block; font-size: 12.5px; letter-spacing: 3px; font-weight: 600; color: #fff; background: rgba(255,255,255,.16); border: 1px solid rgba(255,255,255,.28); padding: 5px 13px; border-radius: 999px; }
.page-banner-rich h1 { font-size: clamp(30px, 4.6vw, 46px); font-weight: 700; margin-top: 16px; line-height: 1.15; }
.br-lead { margin-top: 12px; font-size: 18px; font-weight: 600; opacity: .95; }
.br-desc { margin-top: 14px; font-size: 15px; line-height: 1.95; opacity: .82; max-width: 620px; }
.br-stats { display: flex; gap: 34px; margin-top: 26px; }
.br-stat b { display: block; font-size: 30px; font-weight: 700; line-height: 1.1; }
.br-stat span { display: block; font-size: 13.5px; opacity: .75; margin-top: 4px; }
.br-panel { background: rgba(255,255,255,.1); border: 1px solid rgba(255,255,255,.22); border-radius: var(--radius); padding: 24px 24px 20px; backdrop-filter: blur(6px); }
.br-panel h3 { font-size: 16px; font-weight: 600; margin-bottom: 14px; }
.br-domains { list-style: none; }
.br-domains li + li { border-top: 1px solid rgba(255,255,255,.14); }
.br-domains a { display: flex; align-items: center; gap: 10px; padding: 10px 0; color: #fff; font-size: 14.5px; transition: opacity .2s; }
.br-domains a:hover { opacity: .78; }
.br-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); flex: none; }
.br-dom-name { flex: 1; }
.br-dom-num { font-size: 13px; opacity: .7; background: rgba(255,255,255,.12); border-radius: 999px; padding: 2px 9px; }
.br-panel-foot { font-size: 12.5px; line-height: 1.7; opacity: .68; margin-top: 14px; padding-top: 13px; border-top: 1px solid rgba(255,255,255,.14); }
@media (max-width: 980px) {
  .br-inner { grid-template-columns: 1fr; gap: 30px; }
  .br-desc { max-width: none; }
}
@media (max-width: 640px) {
  .page-banner-rich { padding: 42px 0 46px; }
  .br-stats { gap: 22px; }
  .br-stat b { font-size: 24px; }
  .br-lead { font-size: 16px; }
}

.br-wall { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; margin-top: 4px; }
.br-wall figure { background: #fff; border-radius: 7px; padding: 6px 5px; aspect-ratio: 16 / 10; display: flex; align-items: center; justify-content: center; overflow: hidden; }
.br-wall img { max-width: 100%; max-height: 100%; object-fit: contain; }

.br-qr { display: flex; gap: 14px; margin-top: 4px; }
.br-qr figure { flex: 1; text-align: center; background: #fff; border-radius: 9px; padding: 9px 7px 7px; }
.br-qr img { width: 100%; max-width: 104px; display: block; margin: 0 auto; }
.br-qr figcaption { font-size: 12px; margin-top: 6px; color: #5A6A85; }
.br-panel-foot a { color: #fff; text-decoration: underline; text-underline-offset: 3px; }

.sz-page .flow-line { grid-template-columns: repeat(3, 1fr); }
@media (max-width: 1024px) { .sz-page .flow-line { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .sz-page .flow-line { grid-template-columns: 1fr; } }

.case-photo-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; max-width: 1080px; margin: 26px auto 0; }
.case-photo-grid figure { position: relative; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-md); }
.case-photo-grid img { display: block; width: 100%; aspect-ratio: 16 / 9; object-fit: cover; }
.case-photo-grid figcaption { position: absolute; left: 0; right: 0; bottom: 0; padding: 22px 16px 12px; font-size: 13.5px; font-weight: 600; color: #fff; background: linear-gradient(transparent, rgba(16,27,51,.82)); }
@media (max-width: 900px) { .case-photo-grid { grid-template-columns: 1fr; } }

/* ---------- 产品介绍 mega 多列下拉 ---------- */
.submenu.mega {
  left: 50%; min-width: 0; width: 720px; padding: 16px 18px 12px;
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 2px 22px;
}
.submenu.mega::before { top: -18px; height: 18px; }
.submenu.mega li.mm-group { display: block; border-bottom: 1px solid var(--line); padding-bottom: 6px; margin-bottom: 8px; }
.submenu.mega li.mm-group:nth-last-child(-n+3) { border-bottom: 0; }
.submenu.mega h5 { font-size: 12.5px; color: var(--muted); margin: 8px 0 2px; font-weight: 600; letter-spacing: .5px; }
.submenu.mega li.mm-group ul { list-style: none; }
.submenu.mega li.mm-group ul li a { padding: 5px 10px; font-size: 13.5px; white-space: nowrap; border-radius: 6px; }
.submenu.mega li.mm-all { grid-column: 1 / -1; border-top: 1px solid var(--line); margin-top: 6px; padding-top: 10px; }
.submenu.mega li.mm-all a { display: flex; justify-content: space-between; align-items: center; font-weight: 600; color: var(--primary); padding: 8px 10px; border-radius: 8px; font-size: 14px; }
.submenu.mega li.mm-all a:hover { background: var(--primary-light); }
@media (max-width: 1080px) { .submenu.mega { width: 560px; grid-template-columns: repeat(2, 1fr); } .submenu.mega li.mm-group:nth-last-child(-n+3) { border-bottom: 1px solid var(--line); } .submenu.mega li.mm-group:nth-last-child(-n+2) { border-bottom: 0; } }

@media (max-width: 900px) {
  .submenu.mega { width: 100%; grid-template-columns: 1fr; }
  .submenu.mega li.mm-group ul li a { white-space: normal; }
}