/* ============================================================
   五量度科技 — 全站样式（GEO / AI 友好、纯静态）
   ============================================================ */
:root {
  --c-primary: #16a6c7;
  --c-primary-dark: #0e7a96;
  --c-accent: #f4a72c;
  --c-deep: #1f3a6d;
  --c-deep-2: #152952;
  --c-text: #2b3440;
  --c-muted: #6b7785;
  --c-line: #e6ecf2;
  --c-bg: #ffffff;
  --c-bg-soft: #f5f8fb;
  --c-bg-blue: #0f3b56;
  --radius: 6px;
  --shadow: 0 4px 18px rgba(15,40,70,.08);
  --shadow-lg: 0 12px 36px rgba(15,40,70,.14);
  --container: 1200px;
  --header-h: 84px;
  --tr: .25s ease;
  --font: "PingFang SC","Microsoft YaHei","Hiragino Sans GB","Helvetica Neue",Arial,sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.7;
  color: var(--c-text);
  background: var(--c-bg);
  -webkit-font-smoothing: antialiased;
}
img, svg { max-width: 100%; display: block; }
a { color: var(--c-primary-dark); text-decoration: none; transition: color var(--tr); }
a:hover { color: var(--c-accent); }
button { font-family: inherit; cursor: pointer; }
ul, ol { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4, h5 { margin: 0; line-height: 1.3; color: var(--c-deep); font-weight: 700; }

.container { max-width: var(--container); margin: 0 auto; padding: 0 20px; }
.flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.flex-btw { display: flex; align-items: center; justify-content: space-between; }
.text-center { text-align: center; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }

/* ========== 顶部公告条 ========== */
.topbar {
  background: #f2f5f8;
  color: #6b7785;
  font-size: 12px;
  border-bottom: 1px solid #e6ecf2;
}
.topbar .container { display: flex; justify-content: space-between; align-items: center; height: 36px; }
.topbar a { color: #6b7785; margin-left: 18px; }
.topbar a:hover { color: var(--c-primary-dark); }
.topbar-tel { color: var(--c-accent); font-weight: 800; white-space: nowrap; }
.topbar-tel:hover { color: var(--c-primary-dark); }

/* ========== 头部 ========== */
.header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: #fff;
  box-shadow: 0 1px 0 rgba(0,0,0,.04);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: var(--header-h);
}
.logo { display: flex; align-items: center; gap: 10px; }
.logo-mark {
  width: 44px; height: 44px;
  background: linear-gradient(135deg, var(--c-primary), var(--c-primary-dark));
  border-radius: 10px;
  display: grid; place-items: center;
  color: #fff; font-weight: 800; font-size: 18px;
  box-shadow: 0 6px 16px rgba(22,166,199,.35);
}
.logo-text { display: inline-block; font-size: 26px; font-weight: 800; color: var(--c-deep); letter-spacing: 4px; line-height: 1; white-space: nowrap; }
.logo-text b { font-size: 22px; color: var(--c-deep); letter-spacing: 2px; }
.logo-text span { font-size: 12px; color: var(--c-muted); letter-spacing: 1.5px; text-transform: uppercase; font-weight: 600; margin-top: 1px; }
@media (max-width: 420px) { .logo-text { font-size: 22px; letter-spacing: 2px; } }
@media (max-width: 420px) {
  .logo-text b { font-size: 19px; letter-spacing: 1px; }
  .logo-text span { letter-spacing: .8px; font-size: 11px; }
}

.nav-list { display: flex; gap: 2px; }
@media (min-width: 1201px) {
  /* 桌面端 9 项导航（1200px 容器内可完整容纳，logo/菜单/热线互不重叠） */
  .nav-list > li > a { padding: 10px 9px; font-size: 13px; }
  .header-inner { gap: 12px; }
}
.nav-list > li > a {
  display: block;
  padding: 10px 12px;
  color: var(--c-text);
  font-size: 14px;
  font-weight: 500;
  border-radius: 4px;
  position: relative;
  white-space: nowrap;
}
.nav-list > li > a:hover,
.nav-list > li.active > a {
  color: var(--c-primary-dark);
}
.nav-list > li.active > a::after,
.nav-list > li > a:hover::after {
  content: ""; position: absolute; left: 12px; right: 12px; bottom: 4px;
  height: 2px; background: var(--c-primary);
}

.hotline {
  display: inline-flex; align-items: center; gap: 7px;
  background: var(--grad); color: #fff;
  padding: 7px 16px; border-radius: 999px; line-height: 1;
  white-space: nowrap; box-shadow: 0 5px 16px rgba(22,166,199,.38);
}
.hotline span { font-size: 12px; color: rgba(255,255,255,.92); font-weight: 500; white-space: nowrap; }
.hotline b { font-size: 21px; color: #fff; font-weight: 800; letter-spacing: .5px; white-space: nowrap; }
a[href^="tel:"] { white-space: nowrap; }

.menu-btn { display: none; width: 36px; height: 36px; border: 0; background: transparent; padding: 0; }
.menu-btn span { display: block; width: 22px; height: 2px; background: var(--c-deep); margin: 5px auto; transition: var(--tr); }

/* ========== Hero ========== */
.hero {
  position: relative;
  background:
    linear-gradient(180deg, rgba(15,59,86,.80), rgba(31,58,109,.90)),
    url(../img/photos/hero-bg.jpg) center/cover no-repeat fixed;
  color: #fff;
  overflow: hidden;
}
.hero::before {
  content: ""; position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px);
  background-size: 40px 40px;
  mask-image: linear-gradient(180deg, rgba(0,0,0,.6), transparent 80%);
  pointer-events: none;
}
.hero-inner {
  position: relative;
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 40px;
  align-items: center;
  min-height: 520px;
  padding: 60px 20px 80px;
}
.hero-eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.18);
  padding: 7px 16px;
  border-radius: 100px;
  font-size: 15px;
  color: #cdeef6;
  margin-bottom: 20px;
}
.hero-eyebrow::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--c-accent); box-shadow: 0 0 12px var(--c-accent); }
.hero h1 {
  font-size: 44px; line-height: 1.2; color: #fff;
  margin-bottom: 16px;
}
.hero h1 em { font-style: normal; color: #5dd7ee; }
.hero p { color: #c9d6e4; font-size: 16px; max-width: 560px; margin-bottom: 28px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 22px; border-radius: 4px;
  font-weight: 600; font-size: 14px;
  transition: all var(--tr);
  border: 0;
}
.btn-primary { background: var(--c-accent); color: #1f1300; }
.btn-primary:hover { background: #ffba44; color: #1f1300; transform: translateY(-1px); }
.btn-ghost { background: rgba(255,255,255,.08); color: #fff; border: 1px solid rgba(255,255,255,.25); }
.btn-ghost:hover { background: rgba(255,255,255,.16); color: #fff; }

.hero-card {
  background: #fff; color: var(--c-text);
  border-radius: 12px;
  box-shadow: var(--shadow-lg);
  padding: 28px 28px 24px;
  position: relative;
  transform: translateY(0);
}
.hero-card h3 { font-size: 18px; margin-bottom: 6px; }
.hero-card .sub { font-size: 13px; color: var(--c-muted); margin-bottom: 18px; }
.hero-card .row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.hero-card .stat {
  background: var(--c-bg-soft);
  border-radius: 8px;
  padding: 14px 12px;
  text-align: center;
}
.hero-card .stat b { display: block; font-size: 22px; color: var(--c-primary-dark); }
.hero-card .stat span { font-size: 12px; color: var(--c-muted); }
.hero-card .ribbon {
  position: absolute; top: -10px; right: 16px;
  background: var(--c-accent); color: #1f1300;
  font-size: 12px; font-weight: 700;
  padding: 4px 10px; border-radius: 4px;
}

/* ========== 通用区块 ========== */
.section { padding: 80px 0; }
.section.alt { background: var(--c-bg-soft); }
.section.deep { background: linear-gradient(180deg, #0f3b56, #152952); color: #fff; }
.section.deep h2, .section.deep h3 { color: #fff; }
.section.deep p { color: #b8c7d8; }

.tit { text-align: center; margin-bottom: 50px; }
.tit b { display: block; font-size: 32px; color: var(--c-deep); margin-bottom: 8px; }
.tit p { color: var(--c-muted); }
.tit .deco { display: flex; align-items: center; justify-content: center; gap: 12px; margin-bottom: 14px; }
.tit .deco i { width: 36px; height: 2px; background: var(--c-primary); }
.tit .deco span { font-size: 13px; color: var(--c-primary); letter-spacing: 4px; text-transform: uppercase; }
.section.deep .tit b { color: #fff; }
.section.deep .tit p { color: #b8c7d8; }

/* ========== 主营业务卡片 ========== */
.svc-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.svc {
  background: #fff; border: 1px solid var(--c-line); border-radius: 8px;
  padding: 30px 26px; transition: all var(--tr);
  position: relative; overflow: hidden;
}
.svc::before {
  content: ""; position: absolute; left: 0; top: 0; width: 4px; height: 0;
  background: var(--c-primary); transition: height var(--tr);
}
.svc:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: transparent; }
.svc:hover::before { height: 100%; }
.svc .icon {
  width: 56px; height: 56px; border-radius: 12px;
  background: linear-gradient(135deg, rgba(22,166,199,.12), rgba(22,166,199,.04));
  display: grid; place-items: center;
  margin-bottom: 16px;
  color: var(--c-primary);
}
.svc h3 { font-size: 18px; margin-bottom: 10px; }
.svc p { color: var(--c-muted); font-size: 14px; margin-bottom: 12px; }
.svc .tags { display: flex; flex-wrap: wrap; gap: 6px; }
.svc .tags span {
  font-size: 12px; background: var(--c-bg-soft);
  padding: 3px 10px; border-radius: 100px; color: var(--c-muted);
}

/* 图文版业务卡（图片在顶、文案在下） */
.svc.svc-img { padding: 0; display: flex; flex-direction: column; }
.svc.svc-img .pic {
  position: relative; width: 100%; aspect-ratio: 16 / 10; overflow: hidden;
  background: #eef4f9;
}
.svc.svc-img .pic img {
  width: 100%; height: 100%; object-fit: cover; display: block;
  transition: transform .5s ease;
}
.svc.svc-img:hover .pic img { transform: scale(1.05); }
.svc.svc-img .body { padding: 22px 24px 26px; }
.svc.svc-img .body .icon { margin-bottom: 12px; }
.svc.svc-img .body h3 { font-size: 18px; margin-bottom: 8px; }
.svc.svc-img .body p { margin-bottom: 12px; }
@media (max-width: 600px) {
  .svc.svc-img .body { padding: 18px 18px 22px; }
}

/* ========== About ========== */
.about {
  display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center;
}
.about h2 { font-size: 30px; margin-bottom: 18px; }
.about h2 small { display: block; font-size: 13px; color: var(--c-primary); letter-spacing: 3px; text-transform: uppercase; margin-bottom: 6px; font-weight: 500; }
.about p { color: #4a5562; margin-bottom: 16px; }
.about .num-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin: 30px 0; }
.about .num b { display: block; font-size: 36px; color: var(--c-primary-dark); font-weight: 800; }
.about .num span { font-size: 13px; color: var(--c-muted); }
.about .visual {
  border-radius: 16px; overflow: hidden; box-shadow: var(--shadow-lg);
  aspect-ratio: 4/3; position: relative;
}
.about .visual img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform .6s ease; }
.about:hover .visual img { transform: scale(1.04); }
.about .visual::after {
  content: "智能化实验室技术服务平台"; position: absolute; left: 0; right: 0; bottom: 0;
  padding: 18px 20px; color: #fff; font-size: 16px; font-weight: 600; letter-spacing: 1px;
  background: linear-gradient(180deg, transparent, rgba(13,40,70,.85));
  text-shadow: 0 2px 10px rgba(0,0,0,.4);
}

/* ========== 产品/案例卡片 ========== */
.prod-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.prod {
  background: #fff; border: 1px solid var(--c-line); border-radius: 8px;
  overflow: hidden; transition: all var(--tr);
}
.prod:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.prod .pic {
  aspect-ratio: 4/3; background: var(--c-bg-soft);
  position: relative; overflow: hidden;
}
.prod .pic svg { width: 100%; height: 100%; }
.prod .info { padding: 18px 20px 22px; }
.prod .info h3 { font-size: 16px; margin-bottom: 8px; }
.prod .info p { font-size: 13px; color: var(--c-muted); margin: 0; }
.more-row { text-align: center; margin-top: 40px; }
.more-row a {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 12px 30px; border: 1px solid var(--c-primary); color: var(--c-primary-dark);
  border-radius: 4px; font-weight: 600;
}
.more-row a:hover { background: var(--c-primary); color: #fff; }

.case-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.case {
  display: block;
  border-radius: 8px; overflow: hidden;
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.12);
  transition: all var(--tr);
}
.case:hover { transform: translateY(-4px); background: rgba(255,255,255,.1); }
.case .pic { aspect-ratio: 4/3; position: relative; overflow: hidden; }
.case .pic .badge {
  position: absolute; left: 12px; top: 12px;
  background: var(--c-accent); color: #1f1300;
  font-size: 12px; padding: 3px 10px; border-radius: 100px; font-weight: 600;
}
.case .info { padding: 16px 16px 20px; }
.case .info h3 { font-size: 15px; color: #fff; margin-bottom: 6px; line-height: 1.4; }
.case .info p { font-size: 12px; color: #94a8c0; margin: 0; }

.partner-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.partner {
  background: #fff; border: 1px solid var(--c-line); border-radius: 6px;
  display: grid; place-items: center;
  aspect-ratio: 16/9; padding: 16px;
  transition: all var(--tr);
  color: var(--c-muted);
}
.partner:hover { border-color: var(--c-primary); color: var(--c-primary-dark); }
.partner b { font-size: 13px; }

/* ========== 新闻 3 列 ========== */
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.news-col h4 {
  display: flex; align-items: center; justify-content: space-between;
  font-size: 18px; margin-bottom: 18px;
  padding-bottom: 12px; border-bottom: 2px solid var(--c-line);
}
.news-col h4::before { content: ""; display: inline-block; width: 4px; height: 18px; background: var(--c-primary); margin-right: 10px; vertical-align: middle; }
.news-col h4 a { font-size: 12px; color: var(--c-muted); font-weight: 400; }
.news-col li { padding: 12px 0; border-bottom: 1px dashed var(--c-line); }
.news-col li a { display: flex; gap: 10px; align-items: flex-start; color: var(--c-text); font-size: 14px; line-height: 1.5; }
.news-col li a:hover { color: var(--c-primary-dark); }
.news-col li a::before {
  content: ""; flex: 0 0 4px; width: 4px; height: 4px; border-radius: 50%;
  background: var(--c-muted); margin-top: 9px;
}
.news-col li time { display: block; font-size: 12px; color: var(--c-muted); margin-top: 4px; }

/* ========== 页脚 ========== */
.footer {
  background: linear-gradient(180deg, #0d2742, #0a1e34);
  color: #b8c7d8;
  padding-top: 60px;
}
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 40px; padding-bottom: 40px; }
.footer h5 { color: #fff; font-size: 16px; margin-bottom: 18px; }
.footer ul li { margin-bottom: 10px; }
.footer a { color: #b8c7d8; font-size: 14px; }
.footer a:hover { color: var(--c-accent); }
.footer .contact-line { font-size: 14px; margin-bottom: 8px; }
.footer .contact-line b { color: #fff; }
.footer .qr-row { display: flex; gap: 12px; margin-top: 12px; flex-wrap: wrap; }
.footer .qr-row .qr {
  background: #fff; border-radius: 8px; padding: 8px; width: 100px; text-align: center;
  box-shadow: 0 2px 10px rgba(15,40,70,.08);
}
.footer .qr-row .qr img { width: 100%; height: auto; border-radius: 4px; display: block; }
.footer .qr-row .qr span { display: block; font-size: 11px; color: var(--c-muted); margin-top: 5px; }
.footer .hotline-block {
  background: rgba(255,255,255,.05); border: 1px solid rgba(255,255,255,.1);
  border-radius: 8px; padding: 18px;
}
.footer .hotline-block b { font-size: 28px; color: var(--c-accent); display: block; white-space: nowrap; font-weight: 800; }
.footer .hotline-block span { font-size: 12px; color: #94a8c0; }
.footer .copyright {
  border-top: 1px solid rgba(255,255,255,.08);
  padding: 18px 0;
  font-size: 12px;
  color: #6b7d92;
  text-align: center;
}
.footer .copyright a { color: #6b7d92; }
.footer .copyright a:hover { color: #b8c7d8; }

/* ========== 内页通用 ========== */
.page-hero {
  background: linear-gradient(135deg, #0f3b56 0%, #1f3a6d 100%);
  color: #fff;
  padding: 70px 0 60px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.page-hero::before {
  content: ""; position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px);
  background-size: 40px 40px;
}
.page-hero .container { position: relative; }
.page-hero h1 { color: #fff; font-size: 36px; margin-bottom: 10px; }
.page-hero p { color: #c9d6e4; font-size: 15px; }
.breadcrumb { display: flex; justify-content: center; gap: 8px; margin-top: 16px; font-size: 13px; color: #94b4cf; }
.breadcrumb a { color: #94b4cf; }
.breadcrumb a:hover { color: var(--c-accent); }

.content { padding: 60px 0 80px; }
.content h2 { font-size: 26px; margin: 32px 0 14px; padding-left: 14px; border-left: 4px solid var(--c-primary); }
.content h3 { font-size: 20px; margin: 24px 0 10px; }
.content p { color: #4a5562; margin-bottom: 14px; }
.content ul.list, .content ol.list { margin: 14px 0 14px 0; }
.content ul.list li, .content ol.list li { padding-left: 24px; position: relative; margin-bottom: 8px; color: #4a5562; }
.content ul.list li::before { content: "▸"; color: var(--c-primary); position: absolute; left: 0; }
.content ol.list li::before { counter-increment: item; content: counter(item) "."; color: var(--c-primary); font-weight: 700; }
.content ol.list { counter-reset: item; }

.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
.three-col { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }

/* ========== FAQ (GEO/AI 友好) ========== */
.faq { background: #fff; border: 1px solid var(--c-line); border-radius: 8px; }
.faq details { border-bottom: 1px solid var(--c-line); padding: 0; }
.faq details:last-child { border-bottom: 0; }
.faq summary {
  cursor: pointer; padding: 18px 22px;
  font-weight: 600; color: var(--c-deep);
  list-style: none; display: flex; justify-content: space-between; align-items: center;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font-size: 22px; color: var(--c-primary); transition: transform var(--tr); }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq .answer { padding: 0 22px 20px; color: #4a5562; }
.faq-intro { color: var(--c-muted); margin: -4px 0 24px; font-size: 15px; line-height: 1.85; }
.faq-intro strong { color: var(--c-accent); }
h3 + .faq { margin-top: 12px; }
.faq + h3 { margin-top: 36px; }

/* ========== 表单 ========== */
.form { background: #fff; border: 1px solid var(--c-line); border-radius: 8px; padding: 30px; }
.form .row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form .field { margin-bottom: 16px; }
.form label { display: block; font-size: 13px; color: var(--c-muted); margin-bottom: 6px; }
.form input, .form textarea, .form select {
  width: 100%; padding: 10px 12px;
  border: 1px solid var(--c-line); border-radius: 4px;
  font: inherit; color: var(--c-text); background: #fff;
  transition: border-color var(--tr);
}
.form input:focus, .form textarea:focus, .form select:focus { outline: 0; border-color: var(--c-primary); }
.form textarea { min-height: 120px; resize: vertical; }
.form .submit {
  background: var(--c-primary); color: #fff; border: 0;
  padding: 12px 28px; border-radius: 4px; font-weight: 600;
  transition: background var(--tr);
}
.form .submit:hover { background: var(--c-primary-dark); }

/* ========== 右侧悬浮 ========== */
.float-rail {
  position: fixed; right: 16px; bottom: 80px;
  display: flex; flex-direction: column; gap: 8px;
  z-index: 40;
}
.float-rail a, .float-rail button {
  width: 50px; height: 50px; border-radius: 8px;
  background: #fff; box-shadow: var(--shadow);
  border: 1px solid var(--c-line);
  display: grid; place-items: center;
  color: var(--c-primary-dark);
  transition: all var(--tr);
  font-size: 11px;
}
.float-rail a:hover, .float-rail button:hover { background: var(--c-primary); color: #fff; border-color: var(--c-primary); }
.float-rail svg { width: 20px; height: 20px; }

/* ========== 照片 / 真实图增强 ========== */
.figure {
  border-radius: 14px; overflow: hidden; box-shadow: var(--shadow);
  position: relative; background: var(--c-bg-soft);
}
.figure img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform .5s ease; }
.figure:hover img { transform: scale(1.04); }

.prod .pic img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform .45s ease; }
.prod:hover .pic img { transform: scale(1.06); }

.case .pic img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform .45s ease; }
.case:hover .pic img { transform: scale(1.05); }

.partner { padding: 14px; }
.partner img { max-width: 100%; max-height: 84px; object-fit: contain; filter: none; opacity: 1; transition: var(--tr); }
.partner:hover img { filter: none; opacity: 1; }

/* 真实场景展示条 */
.scene-strip { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.scene-strip .figure { aspect-ratio: 1/1; }
@media (max-width: 960px) { .scene-strip { grid-template-columns: repeat(2, 1fr); } }

/* 团队墙 */
.team-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.team { border-radius: 14px; overflow: hidden; background: #fff; box-shadow: var(--shadow); transition: all var(--tr); }
.team:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.team .pic { aspect-ratio: 4/3; overflow: hidden; position: relative; }
.team .pic img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform .5s ease; }
.team:hover .pic img { transform: scale(1.05); }
.team .info { padding: 16px 18px 20px; }
.team .info h3 { font-size: 16px; margin-bottom: 4px; }
.team .info p { font-size: 13px; color: var(--c-muted); margin: 0; }

/* 流程 / 大图展示 */
.flow-img { border-radius: 14px; overflow: hidden; box-shadow: var(--shadow); margin-top: 30px; }
.flow-img img { width: 100%; display: block; }

/* 通用图片圆角工具 */
.img-rounded { border-radius: 14px; box-shadow: var(--shadow); display: block; width: 100%; }

/* 内页页头背景：真实图 */
.page-hero.has-photo {
  background:
    linear-gradient(180deg, rgba(15,59,86,.82), rgba(15,40,70,.9)),
    url(../img/photos/hero-bg.jpg) center/cover no-repeat fixed;
}

/* ========== 步骤条 (报修流程) ========== */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; position: relative; }
.step {
  background: #fff; border: 1px solid var(--c-line); border-radius: 8px;
  padding: 30px 22px; text-align: center; position: relative;
  transition: all var(--tr);
}
.step:hover { border-color: var(--c-primary); box-shadow: var(--shadow); }
.step .n {
  position: absolute; top: -18px; left: 50%; transform: translateX(-50%);
  width: 36px; height: 36px; border-radius: 50%;
  background: linear-gradient(135deg, var(--c-primary), var(--c-primary-dark));
  color: #fff; font-weight: 800; display: grid; place-items: center;
  box-shadow: 0 4px 12px rgba(22,166,199,.35);
}
.step h4 { font-size: 16px; margin: 12px 0 8px; }
.step p { font-size: 13px; color: var(--c-muted); margin: 0; }

/* ============================================================
   科技感增强（v2）：配色变量 / 光晕 / 渐变描边 / 揭示动画
   ============================================================ */
:root {
  --c-electric: #2f6bff;
  --c-cyan: #1ec8e6;
  --grad: linear-gradient(135deg, #16a6c7 0%, #2f6bff 100%);
  --grad-soft: linear-gradient(135deg, rgba(22,166,199,.14), rgba(47,107,255,.06));
  --glow: 0 0 36px rgba(22,166,199,.30);
  --grid-line: rgba(255,255,255,.05);
  --mono: "SFMono-Regular", "JetBrains Mono", "Roboto Mono", Consolas, "Courier New", monospace;
}

/* 等宽 eyebrow 标签，强化科技感（英文小节标签用） */
.tit .deco span,
.about h2 small,
.section .eyebrow {
  font-family: var(--mono);
  letter-spacing: 3px;
}
/* 首页 Hero 口号：中文标语，正常字距 */
.hero-eyebrow {
  font-family: inherit;
  letter-spacing: 2px;
  font-weight: 600;
}
.tit .deco span { color: var(--c-primary); }

/* Hero 径向光晕 + 网格叠加 */
.hero::after {
  content: ""; position: absolute; width: 560px; height: 560px;
  right: -140px; top: -180px;
  background: radial-gradient(circle, rgba(30,200,230,.38), transparent 68%);
  filter: blur(6px); pointer-events: none; z-index: 0;
}
.hero-inner { z-index: 1; }

/* 按钮：渐变主按钮 + 发光 */
.btn-primary {
  background: var(--grad); color: #fff;
  box-shadow: 0 8px 22px rgba(22,166,199,.35);
}
.btn-primary:hover { background: var(--grad); color: #fff; filter: brightness(1.07); transform: translateY(-2px); box-shadow: 0 14px 32px rgba(47,107,255,.42); }
.btn-ghost { border-radius: 6px; }

/* 统计数字：渐变文字 */
.hero-card .stat b,
.about .num b,
.hero-stats b {
  background: var(--grad);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: var(--c-primary-dark);
}

/* 标题渐变 */
.tit b {
  background: linear-gradient(120deg, #1f3a6d 0%, #16a6c7 70%);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}
.section.deep .tit b { -webkit-text-fill-color: #fff; color: #fff; }

/* 业务卡片：底部渐变描边 + 悬浮发光 */
.svc { border: 1px solid var(--c-line); border-radius: 12px; }
.svc::before {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0; top: auto;
  height: 3px; width: 100%; background: var(--grad);
  transform: scaleX(0); transform-origin: left; transition: transform var(--tr);
}
.svc:hover { transform: translateY(-6px); box-shadow: 0 18px 42px rgba(15,40,70,.16); border-color: rgba(22,166,199,.45); }
.svc:hover::before { transform: scaleX(1); }
.svc .icon {
  background: var(--grad-soft); color: var(--c-primary-dark);
  border: 1px solid rgba(22,166,199,.18);
}

/* 产品/案例卡片：悬浮发光 + 底部渐变遮罩 */
.prod { border: 1px solid var(--c-line); border-radius: 12px; }
.prod:hover { transform: translateY(-6px); box-shadow: 0 18px 42px rgba(15,40,70,.14); border-color: rgba(22,166,199,.45); }
.prod .pic::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 45%, rgba(13,40,70,.55));
  opacity: 0; transition: opacity var(--tr);
}
.prod:hover .pic::after { opacity: 1; }

.case:hover { transform: translateY(-6px); box-shadow: 0 18px 42px rgba(0,0,0,.3); border-color: rgba(22,166,199,.6); }

/* 合作伙伴 Logo 云平台 */
.partner-grid { gap: 18px; }
.partner {
  display: flex; align-items: center; justify-content: center;
  text-decoration: none; color: inherit;
  background: #fff; border: 1px solid var(--c-line); border-radius: 12px;
  aspect-ratio: 8/5; padding: 18px 20px;
  box-shadow: 0 2px 12px rgba(15,40,70,.05);
  transition: var(--tr);
}
.partner img {
  max-width: 88%; max-height: 116px; width: auto; object-fit: contain;
  filter: none; opacity: 1; transition: var(--tr);
}
.partner:hover { border-color: var(--c-primary); box-shadow: 0 12px 28px rgba(22,166,199,.18); transform: translateY(-3px); }
.partner:hover img { filter: none; opacity: 1; }

/* 内页页眉光晕 */
.page-hero::after {
  content: ""; position: absolute; width: 480px; height: 480px;
  right: -120px; top: -160px;
  background: radial-gradient(circle, rgba(30,200,230,.30), transparent 68%);
  pointer-events: none;
}
.page-hero .container { position: relative; z-index: 1; }

/* 头部 logo 图片（放大，不再并排文字） */
.logo-img { height: 58px; width: auto; display: block; }
@media (max-width: 600px) { .logo-img { height: 50px; } }
.header { box-shadow: 0 2px 18px rgba(15,40,70,.07); }
.nav-list > li.active > a, .nav-list > li > a:hover { color: var(--c-primary-dark); }

/* 滚动揭示动画 */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1 !important; transform: none !important; }
  .hero::after, .page-hero::after { display: none; }
}

/* ========== 响应式 ========== */
/* 顶部导航防拥挤：1200px 容器内容区仅 1160px，桌面 9 项菜单完整展开约需 1080px；<1201px 一律折叠为汉堡菜单，杜绝 logo/首页/热线互相重叠 */
@media (max-width: 1200px) {
  .nav-list { display: none; position: absolute; top: var(--header-h); left: 0; right: 0; background: #fff; flex-direction: column; padding: 12px 20px; box-shadow: var(--shadow); }
  .nav-list.open { display: flex; }
  .nav-list > li { width: 100%; }
  .nav-list > li > a { padding: 12px 8px; border-bottom: 1px solid var(--c-line); }
  .menu-btn { display: block; }
  .hotline { display: inline-flex; padding: 6px 13px; gap: 5px; }
  .hotline span { display: none; }
  .hotline b { font-size: 17px; }
  .topbar .container > div:last-child { display: none; }
  .topbar .container { justify-content: center; }
  .topbar { font-size: 12px; }
  .container { padding: 0 18px; }
}


@media (max-width: 960px) {
  .nav-list { display: none; position: absolute; top: var(--header-h); left: 0; right: 0; background: #fff; flex-direction: column; padding: 12px 20px; box-shadow: var(--shadow); }
  .nav-list.open { display: flex; }
  .nav-list > li { width: 100%; }
  .nav-list > li > a { padding: 12px 8px; border-bottom: 1px solid var(--c-line); }
  .menu-btn { display: block; }
  .hotline { display: none; }
  .hero-inner { grid-template-columns: 1fr; padding: 40px 20px 50px; }
  .hero h1 { font-size: 30px; }
  .svc-grid, .prod-grid, .news-grid, .three-col { grid-template-columns: 1fr; }
  .case-grid, .partner-grid { grid-template-columns: repeat(3, 1fr); }
  .about { grid-template-columns: 1fr; gap: 30px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .two-col, .form .row { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr 1fr; }
  .section { padding: 60px 0; }
  .tit b { font-size: 26px; }
  .page-hero h1 { font-size: 28px; }
}
.wx-digest { display: block; color: #6b7785; font-size: 13px; font-weight: 400; margin-top: 4px; line-height: 1.5; }

@media (max-width: 600px) {
  .case-grid, .footer-grid, .steps { grid-template-columns: 1fr; }
  .partner-grid { grid-template-columns: repeat(2, 1fr); }
  .about .num-grid { grid-template-columns: 1fr 1fr; }
  .hero-card .row { grid-template-columns: 1fr 1fr; }
  .float-rail { right: 8px; bottom: 60px; }
  .float-rail a, .float-rail button { width: 44px; height: 44px; }
}

/* ========== 移动端增强（手机浏览器适配） ========== */
@media (max-width: 960px) {
  .container { padding: 0 16px; }
  .team-grid { grid-template-columns: repeat(2, 1fr); }
  /* 页眉热线：手机上不再隐藏，改为紧凑版（只留号码） */
  .hotline { display: inline-flex; padding: 6px 13px; gap: 5px; }
  .hotline span { display: none; }
  .hotline b { font-size: 17px; }
  /* 顶栏：窄屏隐藏右侧冗余链接，保留 400 号码 */
  .topbar .container > div:last-child { display: none; }
  .topbar .container { justify-content: center; }
  .topbar { font-size: 12px; }
}

@media (max-width: 600px) {
  .container { padding: 0 14px; }
  .team-grid { grid-template-columns: 1fr; }
  .scene-strip { grid-template-columns: repeat(2, 1fr); }
  /* 页眉过窄，热线改由底部悬浮条承载 */
  .hotline { display: none; }
  .hero h1 { font-size: 24px; }
  .hero p { font-size: 14px; }
  .page-hero h1 { font-size: 24px; }
  .tit b { font-size: 22px; }
  .section { padding: 44px 0; }
  .footer .qr-row { gap: 8px; }
  .footer .qr-row .qr { width: 88px; padding: 6px; }
  .about .num-grid { gap: 12px; }
  /* iOS 聚焦不放大 */
  input, select, textarea { font-size: 16px; }
  /* 防横向溢出 */
  img, svg, video { max-width: 100%; height: auto; }
  body { padding-bottom: 64px; }
}

/* 手机端底部悬浮呼叫条 */
.mobile-cta {
  display: none;
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 60;
  background: #fff; border-top: 1px solid var(--c-line);
  box-shadow: 0 -6px 20px rgba(15,40,70,.10);
  padding: 8px 12px;
  padding-bottom: calc(8px + env(safe-area-inset-bottom, 0px));
}
.mobile-cta .inner { display: flex; align-items: center; gap: 10px; }
.mobile-cta .tel {
  flex: 1; display: flex; align-items: center; justify-content: center; gap: 6px;
  background: var(--grad); color: #fff; font-weight: 800; font-size: 17px;
  padding: 11px 10px; border-radius: 999px; text-decoration: none;
  box-shadow: 0 6px 16px rgba(22,166,199,.35); white-space: nowrap;
}
.mobile-cta .tel small { font-size: 11px; font-weight: 600; opacity: .92; }
.mobile-cta .msg {
  display: flex; align-items: center; justify-content: center;
  border: 1px solid var(--c-line); color: var(--c-deep); font-size: 13px; font-weight: 700;
  padding: 11px 13px; border-radius: 999px; text-decoration: none; white-space: nowrap;
}
@media (max-width: 600px) {
  .mobile-cta { display: block; }
  .float-rail { bottom: 76px; }
}

/* ========== 溢出根因修复 ========== */
/* grid/flex 子项默认 min-width:auto，会被图片等不可收缩内容撑破容器 */
.svc-grid > *, .prod-grid > *, .case-grid > *, .partner-grid > *,
.news-grid > *, .team-grid > *, .three-col > *, .two-col > *,
.scene-strip > *, .steps > *, .about > *, .footer-grid > * { min-width: 0; }
.partner img, .team img, .prod img, .case img, .scene-strip img { max-width: 100%; height: auto; }
/* 安全兜底：任何情况下都不出现横向滚动条 */
html, body { overflow-x: hidden; }

/* ========== 报修入口：首选小程序高亮 ========== */
.svc.preferred {
  position: relative;
  border: 2px solid var(--c-electric);
  box-shadow: 0 14px 38px rgba(47,107,255,.22);
  transform: translateY(-4px);
}
.svc.preferred .badge {
  position: absolute; top: -13px; left: 20px;
  background: var(--grad); color: #fff;
  font-size: 12px; font-weight: 700; letter-spacing: 1px;
  padding: 4px 14px; border-radius: 999px;
  box-shadow: 0 6px 16px rgba(47,107,255,.35);
}
.center-tip { text-align: center; color: var(--c-muted); margin: -4px 0 22px; font-size: 15px; }

/* ========== 技术文章页通用排版 ========== */
.article { max-width: 860px; margin: 0 auto; }
.article-meta { display: flex; flex-wrap: wrap; gap: 10px 18px; align-items: center; color: var(--c-muted); font-size: 13px; margin-bottom: 8px; }
.article-meta .tag { background: #eef5f9; color: var(--c-primary-dark); padding: 3px 12px; border-radius: 999px; font-weight: 600; }
.article .lead { font-size: 17px; line-height: 2; color: #354a63; }
.article h2.sec { margin: 38px 0 6px; font-size: 22px; color: var(--c-deep); position: relative; padding-left: 15px; line-height: 1.5; }
.article h2.sec::before { content: ""; position: absolute; left: 0; top: 6px; bottom: 6px; width: 5px; border-radius: 3px; background: var(--grad); }
.article h3.sub { margin: 24px 0 4px; font-size: 18px; color: var(--c-primary-dark); }
.article p { line-height: 2; color: #43566c; margin: 12px 0; font-size: 15.5px; }
.article ul, .article ol { line-height: 2; color: #43566c; margin: 12px 0; padding-left: 1.5em; font-size: 15.5px; }
.article li { margin: 5px 0; }
.article .hl { color: var(--c-primary-dark); font-weight: 700; }
.article table { width: 100%; border-collapse: collapse; margin: 18px 0; font-size: 14px; background: #fff; box-shadow: 0 1px 8px rgba(15,40,70,.06); border-radius: 10px; overflow: hidden; }
.article table th { background: linear-gradient(135deg, #eaf7fa, #e8f0ff); color: #1f3a6d; padding: 10px 12px; text-align: left; font-weight: 700; border-bottom: 2px solid #d4e4ec; }
.article table td { padding: 9px 12px; border-bottom: 1px solid #eef2f6; vertical-align: top; }
.article table tr:last-child td { border-bottom: none; }
.article .note { background: #f2f8fb; border-left: 4px solid #2fb6c9; padding: 12px 18px; border-radius: 8px; margin: 18px 0; color: #35536b; font-size: 14.5px; line-height: 1.9; }
.article .warn { background: #fff6ef; border-left: 4px solid #f5a25d; padding: 12px 18px; border-radius: 8px; margin: 18px 0; color: #7a4a22; font-size: 14.5px; line-height: 1.9; }
.article .cta-panel {
  margin: 40px 0 10px; padding: 30px 24px; border-radius: 16px; text-align: center;
  background: var(--grad-soft); border: 1px solid rgba(22,166,199,.32);
}
.article .cta-panel .lab { font-size: 15px; color: var(--c-deep); font-weight: 600; }
.article .cta-panel a.tel-big {
  display: block; font-size: 42px; font-weight: 900; letter-spacing: 1px; text-decoration: none; white-space: nowrap;
  background: var(--grad); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.article .cta-panel .sub { font-size: 13.5px; color: var(--c-muted); margin-top: 4px; }
.article .cta-panel .row { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; margin-top: 16px; }
.article .cta-panel .row a { background: var(--grad); color: #fff; font-weight: 700; padding: 12px 26px; border-radius: 999px; text-decoration: none; box-shadow: 0 8px 20px rgba(22,166,199,.3); }
.article .cta-panel .row a.ghost { background: transparent; color: var(--c-primary-dark); border: 1.5px solid var(--c-primary-dark); box-shadow: none; }
.article .tags { display: flex; gap: 10px; flex-wrap: wrap; margin: 26px 0 6px; }
.article .tags span { background: #eef5f9; color: var(--c-primary-dark); padding: 5px 14px; border-radius: 999px; font-size: 13px; font-weight: 600; }
.back-link { display: inline-block; margin-top: 30px; color: var(--c-primary-dark); font-weight: 600; text-decoration: none; }
.back-link:hover { text-decoration: underline; }
.article figure { margin: 18px 0; text-align: center; }
.article figure img { max-width: 100%; border-radius: 12px; box-shadow: 0 6px 24px rgba(15,40,70,.14); }
.article figcaption { color: var(--c-muted); font-size: 13px; margin-top: 8px; }
@media (max-width: 600px) {
  .article .cta-panel a.tel-big { font-size: 34px; }
  .article table { font-size: 12.5px; display: block; overflow-x: auto; white-space: nowrap; }
}

/* ========== 微信客服 / 在线咨询卡片（guestbook & contact 共用） ========== */
.kf-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.kf-card { border: 1px solid var(--c-line); border-radius: 14px; padding: 22px 20px; text-align: center; background: #fff; transition: all .25s; }
.kf-card:hover { transform: translateY(-3px); box-shadow: 0 12px 30px rgba(15,40,70,.12); border-color: rgba(22,166,199,.4); }
.kf-card .ic { width: 52px; height: 52px; margin: 0 auto 10px; border-radius: 14px; display: grid; place-items: center; }
.kf-card .ic svg { width: 26px; height: 26px; }
.kf-card h3 { font-size: 17px; margin-bottom: 6px; color: var(--c-deep); }
.kf-card p { font-size: 13.5px; color: var(--c-muted); line-height: 1.7; margin-bottom: 12px; }
.kf-card .go { display: inline-block; background: var(--grad); color: #fff; font-weight: 700; padding: 10px 22px; border-radius: 999px; text-decoration: none; font-size: 14px; }
.kf-card .go.tel { background: linear-gradient(135deg,#f4a72c,#e8890c); }
.kf-card .hint { font-size: 12px; color: var(--c-muted); margin-top: 8px; }
.kf-primary { border: 1.5px solid rgba(22,166,199,.5); background: linear-gradient(160deg,#f4fbfd,#eef6ff); }
.kf-primary .ic { background: #12b88622; color: #0ca678; }
.kf-tel .ic { background: #f4a72c22; color: #e8890c; }
.kf-note { display: flex; gap: 10px; align-items: flex-start; background: #f2f8fb; border-left: 4px solid #2fb6c9; border-radius: 8px; padding: 12px 16px; margin-top: 16px; font-size: 13.5px; color: #35536b; line-height: 1.8; }
@media (max-width: 600px) { .kf-grid { grid-template-columns: 1fr; } }

/* ========== AI 智能客服卡片（guestbook & contact） ========== */
.kf-ai {
  display: flex; align-items: center; gap: 18px; flex-wrap: wrap;
  background: linear-gradient(135deg, #e9f9ff, #eef4ff 55%, #f6f0ff);
  border: 1.5px solid rgba(47,107,255,.35);
  border-radius: 16px; padding: 20px 22px; margin-bottom: 16px;
  box-shadow: 0 6px 22px rgba(47,107,255,.10);
}
.kf-ai .ai-ic {
  width: 60px; height: 60px; flex-shrink: 0; border-radius: 18px;
  background: linear-gradient(135deg, #2f6bff, #7c4dff);
  display: grid; place-items: center; color: #fff;
  box-shadow: 0 6px 16px rgba(47,107,255,.35);
}
.kf-ai .ai-ic svg { width: 30px; height: 30px; }
.kf-ai .ai-txt { flex: 1; min-width: 240px; }
.kf-ai .ai-txt h3 { font-size: 18px; color: var(--c-deep); margin-bottom: 4px; }
.kf-ai .ai-txt h3 em { font-style: normal; color: #fff; background: linear-gradient(135deg,#2f6bff,#7c4dff); font-size: 12px; padding: 2px 8px; border-radius: 100px; margin-left: 6px; vertical-align: 2px; }
.kf-ai .ai-txt p { font-size: 13.5px; color: var(--c-muted); line-height: 1.7; margin: 0; }
.kf-ai .go {
  display: inline-block; background: linear-gradient(135deg,#2f6bff,#7c4dff);
  color: #fff; font-weight: 700; padding: 12px 26px; border-radius: 999px;
  text-decoration: none; font-size: 15px; white-space: nowrap;
  box-shadow: 0 6px 18px rgba(47,107,255,.35); transition: all .2s;
}
.kf-ai .go:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(47,107,255,.45); }
.kf-ai .ai-hint { width: 100%; font-size: 12px; color: #8a97b0; }
@media (max-width: 600px) { .kf-ai .go { width: 100%; text-align: center; } }

/* ========== 图文案例卡（cases-real & cases 共用） ========== */
.case-media {
  margin: -28px -28px 18px; height: 270px; overflow: hidden;
  border-radius: 14px 14px 0 0; position: relative; background: #e8edf3;
}
.case-media img { width: 100%; height: 100%; object-fit: cover; display: block; }
.case-media .chip {
  position: absolute; left: 14px; bottom: 12px; background: rgba(15,25,45,.72);
  color: #fff; font-size: 12px; padding: 4px 12px; border-radius: 100px; backdrop-filter: blur(4px);
}
.case-card { overflow: hidden; }
/* 图文精选卡（cases.html 前置区用） */
.ccard {
  display: flex; flex-direction: column; background: #fff; border-radius: 14px;
  overflow: hidden; box-shadow: 0 4px 18px rgba(15,40,70,.08); border: 1px solid #edf0f4;
  transition: all .25s; text-decoration: none; color: inherit; height: 100%;
}
.ccard:hover { transform: translateY(-4px); box-shadow: 0 10px 30px rgba(15,40,70,.14); }
.ccard .pic { height: 190px; overflow: hidden; position: relative; }
.ccard .pic img { width: 100%; height: 100%; object-fit: cover; display: block; }
.ccard .pic .chip {
  position: absolute; left: 12px; bottom: 10px; background: rgba(15,25,45,.7);
  color: #fff; font-size: 12px; padding: 3px 10px; border-radius: 100px;
}
.ccard .body { padding: 16px 18px 20px; display: flex; flex-direction: column; gap: 6px; flex: 1; }
.ccard .body h3 { font-size: 16px; color: #1a2b4a; line-height: 1.45; margin: 0; }
.ccard .body .cm { font-size: 12.5px; color: #8896ab; }
.ccard .body p { font-size: 13.5px; color: #44536b; line-height: 1.75; margin: 2px 0 8px; flex: 1; }
.ccard .go-link { font-size: 13.5px; font-weight: 600; color: #2f6bff; }
.case-pick-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
@media (max-width: 900px) { .case-pick-grid { grid-template-columns: 1fr; } .case-media { height: 220px; } }
@media (max-width: 600px) {
  .case-media { margin: -20px -16px 16px; height: 200px; border-radius: 12px 12px 0 0; }
}

/* ========== 服务地图系统截图框 ========== */
.shb-map-frame {
  position: relative; background: #fff; border-radius: 14px;
  overflow: hidden; box-shadow: 0 8px 30px rgba(15,40,70,.10);
  border: 1px solid #e0e4ea; margin: 0 0 22px;
}
.shb-map-frame img { display: block; width: 100%; height: auto; }
.shb-map-frame .stamp {
  position: absolute; right: 12px; top: 12px; background: rgba(15,25,45,.7);
  color: #fff; font-size: 12px; padding: 4px 10px; border-radius: 100px;
  backdrop-filter: blur(4px); pointer-events: none;
}
.shb-map-caption { text-align: center; font-size: 13px; color: #5b6b7c; margin: -6px 0 26px; }

/* ========== 页脚科研用途免责（参考行业大厂合规写法） ========== */
.site-disclaim {
  margin: 10px auto 0; max-width: 900px; text-align: center;
  font-size: 12px; color: #9fb0c3; line-height: 1.7;
}
.site-disclaim a { color: #9fb0c3; text-decoration: underline; }

/* ========== 可维修仪器·类型速览卡 ========== */
.inst-cat { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin: 8px 0 30px; }
.inst-card {
  background: linear-gradient(165deg, #f6faff, #eef3fc); border: 1px solid #e0e8f5; border-radius: 12px;
  padding: 14px 14px 12px; transition: all .22s;
}
.inst-card:hover { transform: translateY(-3px); box-shadow: 0 8px 22px rgba(15,40,70,.12); border-color: rgba(47,107,255,.4); }
.inst-card .ih { display: flex; align-items: center; gap: 8px; margin-bottom: 8px; }
.inst-card .ih .dot { width: 10px; height: 10px; border-radius: 3px; flex-shrink: 0; }
.inst-card h3 { font-size: 15.5px; color: #16324f; margin: 0; }
.inst-card ul { list-style: none; margin: 0; padding: 0; }
.inst-card li { font-size: 12.5px; color: #43536b; line-height: 1.75; border-top: 1px dashed #dfe7f3; padding: 3px 0; }
.inst-card li b { color: #16324f; font-weight: 600; }
.scene-strip2 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin: 4px 0 10px; }
.scene-strip2 figure { margin: 0; border-radius: 10px; overflow: hidden; box-shadow: 0 3px 12px rgba(15,40,70,.10); }
.scene-strip2 img { display: block; width: 100%; height: 150px; object-fit: cover; }
.scene-strip2 figcaption { font-size: 12px; color: #5b6b7c; text-align: center; padding: 6px 4px 8px; background: #fff; }
@media (max-width: 960px) { .inst-cat { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .inst-cat { grid-template-columns: 1fr; } .scene-strip2 { grid-template-columns: repeat(2, 1fr); } }

/* ========== 即时联系行（contact 页用，渠道精简版） ========== */
.quick-line {
  display: flex; align-items: center; gap: 12px;
  background: #fff; border: 1px solid var(--c-line); border-radius: 12px;
  padding: 12px 14px; margin-bottom: 10px;
  text-decoration: none; color: inherit;
  transition: all .2s;
}
.quick-line:hover { border-color: rgba(47,107,255,.5); box-shadow: 0 6px 18px rgba(15,40,70,.10); transform: translateY(-1px); }
.quick-line.ai { background: linear-gradient(160deg,#f2f8ff,#eef5ff); border-color: rgba(47,107,255,.35); }
.quick-line .ql-ic { width: 40px; height: 40px; flex-shrink: 0; border-radius: 10px; display: grid; place-items: center; color:#2f6bff; background:#e8f1ff; }
.quick-line .ql-ic svg { width: 20px; height: 20px; }
.quick-line .ql-txt { flex: 1; min-width: 0; }
.quick-line .ql-txt b { display: block; font-size: 15px; color: #16324f; }
.quick-line .ql-txt small { display: block; font-size: 12px; color: #71809a; margin-top: 2px; line-height:1.5; }
.quick-line .ql-go { font-size: 13px; font-weight: 600; color: #2f6bff; white-space: nowrap; }

/* 文章页通用：行动引导块 + 电话胶囊（行业资讯每期复用） */
.cta-box { margin: 26px 0 20px; padding: 18px 20px; border-radius: 12px; background: linear-gradient(135deg, #eef4ff, #e7f7fb); border: 1px solid #d8e6f5; }
.cta-box p { margin: 0; font-size: 15px; color: #20415f; line-height: 1.75; }
.cta-box p + p { margin-top: 6px; }
.cta-box b { color: #16324f; }
.tel-link { display: inline-block; padding: 3px 14px; margin: 0 3px; border-radius: 999px; background: #2f6bff; color: #fff !important; font-weight: 700; letter-spacing: .3px; }