/* ============================================================
   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 { scroll-padding-top: calc(var(--header-h) + 12px); }  /* 锚点跳转不被 sticky 页头盖住 */
/* 卡片式标题（club.html 权益卡 h3）带 .reveal，未触发时整体上移 26px，
   只靠 scroll-padding-top 仍会被页头压住 14px，这里再补 40px 余量 */
h3[id] { scroll-margin-top: 40px; }
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; }
.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;
}
/* 桌面端导航配平：容器固定 1200px，10 项（含「一起行俱乐部」）必须收紧才放得下。
   这段必须写在上面那条基础规则【之后】：同优先级下后写者胜，
   2026-09-25 之前它排在前面，整段被 padding:10px 12px / font-size:14px 覆盖
   （等于从未生效），页头总宽 1271px，flex 转而压缩 logo 到 100px，
   品牌字溢出后右侧导航压在上面 —— 表现就是「首页」叠在「五量度」第三个字上。 */
@media (min-width: 1201px) {
  .nav-list { gap: 0; }
  .nav-list > li > a { padding: 10px 7px; font-size: 13px; }
  .nav-list > li > a:hover::after,
  .nav-list > li.active > a::after { left: 7px; right: 7px; }
  .header-inner { gap: 12px; }
  .logo { flex: 0 0 auto; }
}
.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; flex: 0 0 auto; white-space: nowrap; 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; }
/* 2026-09-27 新增：视频号二维码——「关注我们」板块里放大展示的一个（.qr--lg）。
   全站 313 个页脚都含 .qr-row，视频号作为更醒目的入口，比其余码大约 1.4 倍，
   加一道强调色描边（--c-accent）突出；窄屏下仍保持更大一档。 */
.footer .qr-row .qr.qr--lg {
  width: 140px; padding: 10px; border: 2px solid var(--c-accent);
  box-shadow: 0 4px 16px rgba(47,107,255,.18);
}
.footer .qr-row .qr.qr--lg span { font-size: 12px; color: var(--c-accent); font-weight: 700; }
.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（图文并茂：图 + 说明文字） */
.scene-strip { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; }
.scene-strip .figure { aspect-ratio: auto; display: flex; flex-direction: column; background: #fff; margin: 0; }
.scene-strip .shot { overflow: hidden; flex: none; }
.scene-strip .shot img { height: 200px; width: 100%; object-fit: cover; }
.scene-strip figcaption { display: flex; flex-direction: column; gap: 5px; padding: 12px 14px 14px; }
.scene-strip figcaption b { font-size: 14px; font-weight: 700; color: var(--c-deep); line-height: 1.4; }
.scene-strip figcaption span { font-size: 12.5px; line-height: 1.65; color: var(--c-muted); }
@media (max-width: 960px) {
  .scene-strip { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .scene-strip .shot img { height: 180px; }
}
@media (max-width: 600px) { .scene-strip .shot img { height: 150px; } }

/* 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); }
  .club-members { grid-template-columns: repeat(2, 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; }
}
/* 一起行俱乐部 · 创始会员预备报名伙伴
   ⚠ 与 .partner-grid（官方合作伙伴）刻意区分：这里挂的是「品牌销售伙伴个人预备报名」，
   不代表品牌官方立场，因此卡片不链品牌官网、不加 hover 外链态，整块统一链到招募公告。 */
.club-members { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin: 20px 0 6px; }
.cm-card {
  background: #fff; border: 1px solid var(--c-line); border-top: 3px solid var(--c-primary);
  border-radius: 10px; padding: 18px 14px 16px; display: flex; flex-direction: column;
  align-items: center; justify-content: flex-start; text-align: center; gap: 8px;
  box-shadow: 0 2px 12px rgba(15,40,70,.05); transition: var(--tr); text-decoration: none; color: inherit;
}
.cm-card:hover { border-color: var(--c-primary); border-top-color: var(--c-primary); box-shadow: 0 10px 24px rgba(47,107,255,.14); transform: translateY(-2px); }
/* 品牌 logo 多为横版：给固定高度 40px、宽度按比例自适应，避免被方形框压成一条线 */
.cm-logo { height: 40px; width: auto; max-width: 132px; object-fit: contain; flex: 0 0 auto; }
/* 缺 logo 时的占位：用公司名首字，不臆造图形；高度与 logo 对齐保证卡片等高 */
.cm-logo-t { width: 40px; height: 40px; flex: 0 0 40px; border-radius: 8px; background: #eef3fb; color: var(--c-primary-dark); font-size: 18px; font-weight: 700; display: flex; align-items: center; justify-content: center; }
.cm-name { font-size: 15px; font-weight: 700; color: var(--c-primary-dark); line-height: 1.45; }
.cm-card .cm-note { font-size: 12px; color: var(--c-muted); margin-top: 2px; }
.cm-badge { display: inline-block; font-size: 12px; color: #8a6d3b; background: #fdf6e6; border: 1px solid #f0e2bd; border-radius: 999px; padding: 2px 10px; margin-bottom: 10px; }
.cm-tip { font-size: 13px; color: var(--c-muted); line-height: 1.75; }
/* 首页「合作伙伴」区块内的俱乐部引导条 */
.partner-hint { margin-top: 20px; padding: 14px 18px; background: #f4f7fb; border: 1px dashed #c9d9ec; border-radius: 10px; font-size: 14px; color: #34455c; line-height: 1.7; }
.partner-hint b { color: var(--c-primary-dark); }
.partner-hint a { color: var(--c-primary); font-weight: 700; text-decoration: none; border-bottom: 1px solid rgba(47,107,255,.35); }
.partner-hint a:hover { border-bottom-color: var(--c-primary); }
.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); }
  .club-members { grid-template-columns: 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, minmax(0, 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; }
  .footer .qr-row .qr.qr--lg { width: 116px; padding: 8px; border-width: 2px; }
  .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; }
@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; aspect-ratio: 21 / 9; 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 { aspect-ratio: 16 / 9; } }
@media (max-width: 600px) {
  .case-media { margin: -20px -16px 16px; aspect-ratio: 16 / 9; 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, minmax(0, 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, minmax(0, 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; }

/* 2026-09-27 新增：工程师合作页「加微信」招募卡（个人微信二维码）。
   与页脚「关注我们」里的公众号码是两回事：这里是个人微信，用于一对一沟通合作细节。
   放在页面末尾的招募 CTA 之后，桌面左右两栏、窄屏上下叠放。 */
.wx-join {
  display: flex; align-items: flex-start; gap: 20px;
  margin: 22px 0 8px; padding: 18px 20px;
  border-radius: 12px; background: #fff; border: 1px solid var(--c-line);
  box-shadow: var(--shadow);
}
.wx-join-qr { flex: 0 0 auto; text-align: center; }
.wx-join-qr img {
  width: 176px; height: auto; display: block; border-radius: 8px;
  border: 1px solid var(--c-line); background: #fff;
}
.wx-join-qr span { display: block; margin-top: 7px; font-size: 12px; font-weight: 700; color: #07c160; }
.wx-join-tx { flex: 1 1 auto; min-width: 0; }
.wx-join-tx b { display: block; font-size: 16px; color: var(--c-deep); margin-bottom: 8px; }
.wx-join-tx p { margin: 0 0 8px; font-size: 14px; line-height: 1.8; color: #54606e; }
.wx-join-tx p b { display: inline; font-size: inherit; color: #16324f; }
.wx-join-tx p:last-child { margin-bottom: 0; }
.wx-join-note {
  padding: 10px 12px; border-radius: 8px;
  background: #f4f8ff; border: 1px solid #dbe7f8;
  font-size: 13px !important; color: #20415f !important;
}
@media (max-width: 700px) {
  .wx-join { flex-direction: column; align-items: center; gap: 14px; padding: 16px 14px; }
  .wx-join-tx { text-align: left; }
  .wx-join-tx b { text-align: center; }
}

/* ========== AI 智能客服「小V」· 全站悬浮入口 + 站内对话面板 ========== */
.kf-fab {
  position: fixed; right: 16px; bottom: 80px; z-index: 41;
  width: 66px; height: 66px; border-radius: 50%; border: 0; padding: 0;
  display: grid; place-items: center; cursor: pointer;
  background: var(--grad); color: #fff;
  box-shadow: 0 12px 30px rgba(22,166,199,.5), 0 3px 10px rgba(15,40,70,.22),
              inset 0 1px 0 rgba(255,255,255,.3);
  transition: transform .25s ease, box-shadow .25s ease, opacity .22s ease;
}
.kf-fab svg { width: 33px; height: 33px; }
/* 按钮内直接署名「问小V」：不用 hover 也知道这是什么 */
.kf-fab .kf-ico { display: block; margin-top: 2px; }
.kf-fab .kf-name { display: block; font-size: 11px; font-weight: 700; line-height: 1.25; letter-spacing: .4px; margin-top: -1px; }
/* 首次访问引导气泡：插在悬浮条里、fab 上方，向左伸出，7 天一次 */
.kf-nudge {
  position: absolute; right: calc(100% + 12px); top: 2px; width: 250px; z-index: 42;
  background: #fff; border: 1px solid var(--c-line); border-radius: 12px;
  padding: 11px 32px 11px 14px; cursor: pointer; text-align: left;
  box-shadow: 0 10px 30px rgba(15,40,70,.16); color: var(--c-muted);
  font-size: 12.8px; line-height: 1.65;
  opacity: 0; transform: translateX(12px); transition: opacity .32s ease, transform .32s ease;
}
.kf-nudge.in { opacity: 1; transform: none; }
.kf-nudge.off { opacity: 0; transform: translateX(12px); pointer-events: none; }
.kf-nudge b { display: block; font-size: 13.6px; color: var(--c-deep); margin-bottom: 2px; }
.kf-nudge .kf-nudge-x {
  position: absolute; right: 6px; top: 5px; width: 22px; height: 22px; padding: 0;
  border: 0; border-radius: 50%; background: transparent; color: #93a1b5;
  font-size: 15px; line-height: 1; cursor: pointer;
}
.kf-nudge .kf-nudge-x:hover { background: var(--c-bg); color: #5a6b7f; }
.kf-nudge .kf-nudge-ar {
  position: absolute; right: -6px; bottom: 20px; width: 11px; height: 11px; background: #fff;
  border-right: 1px solid var(--c-line); border-top: 1px solid var(--c-line); transform: rotate(45deg);
}
.kf-nudge.as-fixed { position: fixed; right: 92px; bottom: 104px; top: auto; }
/* 2026-09-27 新增：吸底横向提示条「问小V」。
   滚动离开首屏后从底部升起、通栏横贯，是站上最显眼的常驻小V 入口；
   与 .kf-nudge 横向气泡互斥接力（气泡在首屏，吸底条在滚动后），关闭后 7 天内不再打扰。 */
.kf-bar {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 45;
  display: flex; align-items: center; gap: 12px; padding: 10px 18px;
  background: linear-gradient(120deg, #1f3a6d 0%, #2f6bff 68%, #3a7bff 100%);
  color: #fff; box-shadow: 0 -8px 26px rgba(15, 40, 70, .22);
  transform: translateY(102%);
  transition: transform .4s cubic-bezier(.22, .85, .3, 1);
}
/* ⚠ 两条必须互斥：JS 只切 in / out，绝不同时挂着两个类，
   否则后写的 .kf-bar.out 会因为同特异性靠后而盖掉 .kf-bar.in 的 transform，条子该回来却不回来 */
.kf-bar.in { transform: none; }
.kf-bar.out { transform: translateY(102%); pointer-events: none; }
.kf-bar .kf-bar-ic {
  width: 38px; height: 38px; flex: 0 0 auto; border-radius: 10px;
  background: rgba(255, 255, 255, .16); display: grid; place-items: center;
}
.kf-bar .kf-bar-ic svg { width: 22px; height: 22px; }
.kf-bar .kf-bar-tx { flex: 1 1 auto; min-width: 0; }
.kf-bar .kf-bar-tx b { display: block; font-size: 14.5px; font-weight: 700; letter-spacing: .2px; }
.kf-bar .kf-bar-tx small {
  display: block; font-size: 12.2px; opacity: .9; margin-top: 2px;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.kf-bar .kf-bar-act { display: flex; gap: 8px; flex: 0 0 auto; }
.kf-bar .kf-bar-go {
  border: 0; cursor: pointer; font-size: 14px; font-weight: 700;
  padding: 10px 20px; border-radius: 999px; color: #123a86; background: #fff;
  box-shadow: 0 4px 12px rgba(10, 30, 60, .25); transition: transform .2s, filter .2s;
}
.kf-bar .kf-bar-go:hover { transform: translateY(-1px); filter: brightness(1.04); }
.kf-bar .kf-bar-tel {
  display: inline-flex; align-items: center; gap: 6px; text-decoration: none;
  border: 1px solid rgba(255, 255, 255, .5); background: rgba(255, 255, 255, .12);
  color: #fff; font-size: 13.4px; font-weight: 600; padding: 10px 15px; border-radius: 999px;
}
.kf-bar .kf-bar-tel:hover { background: rgba(255, 255, 255, .24); }
.kf-bar .kf-bar-tel svg { width: 15px; height: 15px; }
.kf-bar .kf-bar-x {
  width: 30px; height: 30px; flex: 0 0 auto; padding: 0;
  border: 0; border-radius: 50%; background: rgba(255, 255, 255, .16);
  color: #fff; font-size: 17px; line-height: 1; cursor: pointer; opacity: .85;
}
.kf-bar .kf-bar-x:hover { background: rgba(255, 255, 255, .34); opacity: 1; }
/* ⚠ 移动端不另起一条：站上每页已有移动端吸底电话条 .mobile-cta（z-index:60，白底 + 400 号码胶囊），
   再叠一条通栏会把它顶掉／互相压盖。所以窄屏下隐藏 .kf-bar，改由 JS 往那条电话条里并进一个「问小V」按钮
   （见 .kf-mcta），一行两个胶囊：问小V + 拨 400-917-9917。 */
@media (max-width: 600px) { .kf-bar { display: none; } }
/* 移动端「问小V」按钮：并进 .mobile-cta .inner 的首位（由 main.js 注入，不改 314 个 HTML） */
.kf-mcta {
  flex: 0 0 auto; display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  border: 0; cursor: pointer; background: #eaf1ff; color: #1f3a6d;
  font-weight: 800; font-size: 15px; padding: 11px 15px; border-radius: 999px;
  white-space: nowrap; position: relative;
}
.kf-mcta svg { width: 19px; height: 19px; }
.kf-mcta::after {                       /* 在线小绿点，和 fab 上那颗呼应 */
  content: ""; position: absolute; right: 7px; top: 7px; width: 7px; height: 7px;
  border-radius: 50%; background: #22c55e;
}
.kf-mcta:active { filter: brightness(.95); }
@media (prefers-reduced-motion: reduce) {
  .kf-bar, .kf-bar .kf-bar-go, .kf-fab .kf-tip { transition: none; animation: none; }
}
.kf-fab::before {                       /* 呼吸提示圈 */
  content: ""; position: absolute; inset: -4px; border-radius: 50%;
  border: 3px solid rgba(47,107,255,.5);
  animation: kfPulse 2.1s ease-out infinite; pointer-events: none;
}
@keyframes kfPulse {
  0%   { transform: scale(1);    opacity: .75; }
  70%  { transform: scale(1.52); opacity: 0; }
  100% { transform: scale(1.52); opacity: 0; }
}
.kf-fab:hover { transform: translateY(-2px) scale(1.08); box-shadow: 0 16px 34px rgba(22,166,199,.58), 0 3px 10px rgba(15,40,70,.22); }
.kf-fab:active { transform: scale(.96); }
.kf-fab .kf-tip {                       /* 常显文字标签：不 hover 也看得出是「AI 小V · 7×24 在线」 */
  position: absolute; right: calc(100% + 10px); top: 50%; transform: translateY(-50%);
  background: var(--c-deep); color: #fff; font-size: 12px; font-weight: 600;
  padding: 5px 10px; border-radius: 999px; white-space: nowrap;
  opacity: 1; pointer-events: none; transition: opacity .2s;
  box-shadow: 0 4px 14px rgba(15,40,70,.22);
  animation: kfTipIn .5s ease both, kfTipBreath 3.6s ease-in-out .6s infinite;
}
@keyframes kfTipIn {
  from { opacity: 0; transform: translateY(-50%) translateX(6px); }
  to   { opacity: 1; transform: translateY(-50%); }
}
@keyframes kfTipBreath {
  0%, 100% { transform: translateY(-50%); }
  50%      { transform: translateY(calc(-50% - 3px)); }
}
.kf-fab:hover .kf-tip, .kf-fab:focus-visible .kf-tip { opacity: 1; animation: kfTipIn .5s ease both; }
.kf-fab.kf-nudging .kf-tip { opacity: 0; animation: none; }   /* 气泡在时让位，两套提示不叠在一起 */
/* 窄屏隐藏 tip 的规则放文件末尾统一那段（@media max-width:600px），此处不重复定义 */
.kf-fab .kf-dot {                       /* 在线状态点 */
  position: absolute; right: 3px; top: 3px; width: 13px; height: 13px;
  border-radius: 50%; background: #22c55e; border: 2px solid #fff;
}
/* 在右侧固定栏内：需覆盖 .float-rail button 的默认方块样式，保持圆形渐变高辨识度 */
.float-rail button.kf-fab, .float-rail a.kf-fab {
  position: relative; right: auto; bottom: auto;
  width: 66px; height: 66px; border-radius: 50%;
  background: var(--grad); color: #fff; border: 0;
  box-shadow: 0 8px 22px rgba(22,166,199,.45), 0 2px 6px rgba(15,40,70,.18);
  display: grid; place-items: center; cursor: pointer;
}
.float-rail button.kf-fab:hover, .float-rail a.kf-fab:hover {
  background: var(--grad); border-color: transparent; color: #fff;
  transform: translateY(-2px) scale(1.05);
  box-shadow: 0 12px 26px rgba(22,166,199,.52);
}
.kf-fab.kf-hide { opacity: 0; transform: scale(.72); pointer-events: none; }   /* 面板展开时让位 */
.float-rail .kf-fab.in-rail::before { border-color: rgba(22,166,199,.6); }     /* 固定栏内保留光环 */
.float-rail .kf-fab.in-rail:hover::before, .kf-fab.kf-hide::before { animation: none; opacity: 0; }
/* 2026-09-27：原「完整问答」入口已撤（元器需登录，挂外链属误导），此处不再有并列小图标 */

/* 与 .btn 同尺寸的内联版（用于首页 / 首屏按钮组，保持方角统一） */
.btn-kf-inline { background: var(--grad); color: #fff; box-shadow: 0 6px 16px rgba(22,166,199,.35); white-space: nowrap; flex-shrink: 0; }
.btn-kf-inline:hover { filter: brightness(1.06); transform: translateY(-1px); color: #fff; }

/* 2026-09-27：首页首屏「AI 小V 在线问」改为直链腾讯元器后的诚实说明。
   元器网页版对未登录访客是「微信扫码才能体验」的登录墙（实测 getuserinfo / ListAgreement
   双 401，加 experience=true 也一样），按钮点开就会撞上扫码页，所以这里必须写明，
   并同时给出免登录的替代路径（右下角面板 / 服务热线），不能把访客骗到登录页。 */
.hero-kf-note {
  margin-top: 14px;
  max-width: 560px;
  font-size: 13px;
  line-height: 1.65;
  color: #9fb4cc;
}
.hero-kf-note b { color: #dbe7f5; font-weight: 600; }

.kf-panel {
  position: fixed; right: 16px; bottom: 80px; z-index: 70;
  width: 372px; height: 604px; max-height: calc(100vh - 120px);
  display: flex; flex-direction: column; overflow: hidden;
  background: #fff; border: 1px solid var(--c-line); border-radius: 14px;
  box-shadow: 0 18px 50px rgba(15,40,70,.26);
  opacity: 0; visibility: hidden; transform: translateY(16px) scale(.98); transform-origin: bottom right;
  transition: opacity .22s ease, transform .22s ease, visibility .22s;
}
.kf-panel.open { opacity: 1; visibility: visible; transform: none; }
.kf-head { display: flex; align-items: center; gap: 10px; padding: 12px 14px; color: #fff; background: linear-gradient(120deg, #1f3a6d 0%, #2f6bff 100%); }
.kf-head .av {
  width: 36px; height: 36px; flex: 0 0 auto; border-radius: 50%;
  background: rgba(255,255,255,.2); display: grid; place-items: center;
  font-size: 16px; font-weight: 800;
}
.kf-head .tx { min-width: 0; }
.kf-head .tx b { display: block; font-size: 14.5px; letter-spacing: .2px; }
.kf-head .tx small { display: block; font-size: 11.5px; opacity: .85; margin-top: 2px; }
.kf-x {
  margin-left: auto; flex: 0 0 auto; width: 28px; height: 28px; border: 0; cursor: pointer;
  background: rgba(255,255,255,.16); color: #fff; border-radius: 8px;
  font-size: 17px; line-height: 1; display: grid; place-items: center;
}
.kf-x:hover { background: rgba(255,255,255,.3); }
/* 对话区（2026-09-26 改版：自带对话，不再内嵌第三方 iframe） */
.kf-log { flex: 1; min-height: 0; overflow-y: auto; padding: 14px 13px 16px; background: var(--c-bg-soft); overscroll-behavior: contain; }
.kf-msg { display: flex; gap: 8px; align-items: flex-start; margin-bottom: 12px; }
.kf-msg:last-child { margin-bottom: 2px; }
.kf-msg .who {
  flex: 0 0 auto; max-width: 34px; font-size: 10.5px; line-height: 1.35;
  color: #fff; background: var(--grad); border-radius: 8px; padding: 3px 4px; text-align: center;
}
.kf-msg.kf-out { flex-direction: row-reverse; }
.kf-msg.kf-out .who { background: #8c9bb0; }
.kf-msg .bubble {
  max-width: calc(100% - 56px); padding: 9px 12px; border-radius: 12px;
  background: #fff; border: 1px solid var(--c-line); color: #2b3a4d;
  font-size: 13.4px; line-height: 1.72;
}
.kf-msg.kf-out .bubble { background: var(--grad); border-color: transparent; color: #fff; border-bottom-right-radius: 4px; }
.kf-msg.kf-in .bubble { border-bottom-left-radius: 4px; }
.kf-msg .bubble b { color: #16305c; }
.kf-msg.kf-out .bubble b { color: #fff; }
.kf-msg .bubble .sub { display: block; margin-top: 5px; font-size: 12.2px; line-height: 1.7; color: #6b7a8d; }
.kf-msg.kf-out .bubble .sub { color: rgba(255,255,255,.88); }
.kf-msg .bubble .lk { display: inline-block; margin-top: 6px; color: #2f6bff; font-weight: 600; text-decoration: none; font-size: 12.6px; }
.kf-msg .bubble .lk:hover { text-decoration: underline; }
.kf-msg.kf-typing .bubble { display: flex; gap: 5px; align-items: center; padding: 13px 14px; }
.kf-msg.kf-typing i { width: 6px; height: 6px; border-radius: 50%; background: #9fb2cc; animation: kfDot 1.1s ease-in-out infinite; }
.kf-msg.kf-typing i:nth-child(2) { animation-delay: .16s; }
.kf-msg.kf-typing i:nth-child(3) { animation-delay: .32s; }
@keyframes kfDot { 0%, 60%, 100% { opacity: .3; transform: translateY(0); } 30% { opacity: 1; transform: translateY(-3px); } }

/* 快捷问题 */
.kf-chips { display: flex; flex-wrap: wrap; gap: 7px; margin: 2px 0 4px; }
.kf-chip {
  border: 1px solid #cfe0ff; background: #eef4ff; color: #2f6bff;
  border-radius: 999px; padding: 6px 11px; font-size: 12.2px; cursor: pointer;
  transition: background var(--tr), color var(--tr);
}
.kf-chip:hover { background: #2f6bff; color: #fff; border-color: #2f6bff; }

/* 输入区：始终可见，Enter 发送 */
.kf-field { display: flex; gap: 8px; align-items: flex-end; padding: 9px 10px 10px; background: #fff; border-top: 1px solid var(--c-line); }
.kf-input {
  flex: 1; min-width: 0; resize: none; border: 1px solid var(--c-line); border-radius: 10px;
  padding: 9px 11px; font-family: inherit; font-size: 14px; line-height: 1.6; color: #22354b;
  max-height: 96px; overflow-y: auto; background: #fff;
}
.kf-input::placeholder { color: #9aa9bb; }
.kf-input:focus { outline: none; border-color: #2f6bff; box-shadow: 0 0 0 3px rgba(47,107,255,.14); }
.kf-send {
  flex: 0 0 auto; width: 40px; height: 40px; border: 0; border-radius: 50%; cursor: pointer;
  background: var(--grad); color: #fff; display: grid; place-items: center;
  box-shadow: 0 4px 14px rgba(47,107,255,.32); transition: filter var(--tr), transform var(--tr);
}
.kf-send:hover { filter: brightness(1.08); transform: translateY(-1px); }
.kf-send:active { transform: scale(.94); }
.kf-send svg { width: 19px; height: 19px; }

.kf-foot { display: flex; gap: 8px; padding: 9px 10px; background: #fff; border-top: 1px solid var(--c-line); }
.kf-foot a {
  flex: 1; display: flex; align-items: center; justify-content: center; gap: 5px;
  padding: 8px 6px; border-radius: 9px; font-size: 12.5px; font-weight: 600;
  text-decoration: none; white-space: nowrap; transition: filter var(--tr);
}
.kf-foot a:hover { filter: brightness(1.06); }
.kf-foot a.a1 { background: #2f6bff; color: #fff; }
.kf-foot a.a2 { background: #eef3ff; color: #2f6bff; }
.kf-foot svg { width: 15px; height: 15px; }
.kf-foot button {                       /* 「微信里问」按钮，与 a 同款 */
  font: inherit; font-size: 12.5px; font-weight: 600; cursor: pointer;
  flex: 1; display: inline-flex; align-items: center; justify-content: center; gap: 5px;
  padding: 9px 10px; border-radius: 999px; border: 0; text-decoration: none;
  background: #f2f5f9; color: #5a6b7f;
}
.kf-foot button:hover { filter: brightness(.96); }
/* 二维码层：贴在面板底部，点「微信里问」弹出，免登录通路 */
.kf-qr { position: absolute; left: 0; right: 0; bottom: 0; z-index: 3; background: #fff;
  border-top: 1px solid var(--c-line); padding: 14px 14px 12px; text-align: center;
  box-shadow: 0 -8px 22px rgba(15,40,70,.1); }
.kf-qr[hidden] { display: none; }
.kf-qr b { display: block; font-size: 13.6px; color: var(--c-deep); margin-bottom: 9px; }
.kf-qr img { width: 150px; height: 150px; border-radius: 8px; border: 1px solid var(--c-line); display: block; margin: 0 auto; }
.kf-qr p { margin: 9px 0 10px; font-size: 12.3px; line-height: 1.75; color: var(--c-muted); text-align: left; }
.kf-qr p b { display: inline; font-size: inherit; color: #2f6bff; }
.kf-qr-x { width: 100%; padding: 9px; border: 0; border-radius: 999px; cursor: pointer;
  font: inherit; font-size: 13px; font-weight: 600; background: var(--grad); color: #fff; }
.kf-qr-x:hover { filter: brightness(1.06); }

/* 2026-09-27 新增：右侧悬浮条「加微信」入口（个人微信二维码）。
   位置由 main.js 插在小V（fab）之下、电话图标之上；点击向左弹出二维码卡片。
   与页脚「关注我们」的公众号码不同：这是个人微信，一对一沟通细节用。 */
.float-rail button.kf-wx { position: relative; color: #07c160; cursor: pointer; }
.float-rail button.kf-wx svg { width: 26px; height: 26px; }
.float-rail button.kf-wx:hover { background: #07c160; border-color: #07c160; color: #fff; }
.kf-wx-tip {                            /* 桌面端 hover 才出的文字标签，窄屏隐藏 */
  position: absolute; right: calc(100% + 10px); top: 50%; transform: translateY(-50%);
  background: var(--c-deep); color: #fff; font-size: 12px; font-weight: 600;
  padding: 5px 10px; border-radius: 999px; white-space: nowrap;
  opacity: 0; pointer-events: none; transition: opacity .2s;
  box-shadow: 0 4px 14px rgba(15,40,70,.22);
}
.float-rail button.kf-wx:hover .kf-wx-tip,
.float-rail button.kf-wx:focus-visible .kf-wx-tip { opacity: 1; }
/* 悬浮条不存在的极少数页面（如跳转页）兜底：直接固定右下，避让小V */
.kf-wx.as-fixed {
  position: fixed; right: 16px; bottom: 156px; z-index: 41;
  width: 50px; height: 50px; border-radius: 8px; background: #fff;
  border: 1px solid var(--c-line); box-shadow: var(--shadow);
  display: grid; place-items: center; color: #07c160; cursor: pointer;
}
/* 弹出卡片：贴在悬浮条左侧，底边与「加微信」按钮对齐（right/bottom 由 JS 按实际坐标算） */
.kf-wx-pop {
  position: fixed; right: 92px; bottom: 150px; z-index: 46;
  width: 228px; max-height: calc(100vh - 24px); overflow: auto;
  padding: 13px 13px 11px; border-radius: 14px; text-align: center;
  background: #fff; border: 1px solid var(--c-line);
  box-shadow: 0 16px 40px rgba(15,40,70,.22);
  opacity: 0; transform: translateX(10px); pointer-events: none;
  transition: opacity .26s ease, transform .26s ease;
}
.kf-wx-pop.in { opacity: 1; transform: none; pointer-events: auto; }
.kf-wx-pop b { display: block; font-size: 13.8px; color: var(--c-deep); }
.kf-wx-pop > small { display: block; font-size: 11.8px; color: var(--c-muted); margin: 3px 0 9px; }
.kf-wx-pop img {
  width: 100%; height: auto; display: block; border-radius: 8px;
  border: 1px solid var(--c-line); background: #fff;
}
.kf-wx-pop p { margin: 9px 0 0; font-size: 11.9px; line-height: 1.7; color: var(--c-muted); text-align: left; }
.kf-wx-pop p b { display: inline; font-size: inherit; color: #2f6bff; }
.kf-wx-pop .kf-wx-x {
  position: absolute; right: 6px; top: 5px; width: 24px; height: 24px; padding: 0;
  border: 0; border-radius: 50%; background: transparent; color: #93a1b5;
  font-size: 16px; line-height: 1; cursor: pointer;
}
.kf-wx-pop .kf-wx-x:hover { background: var(--c-bg); color: #5a6b7f; }

/* 命中站内文章：卡片列表 */
.kf-docs { margin-top: 9px; display: grid; gap: 6px; }
.kf-doc {
  display: flex; align-items: flex-start; gap: 8px; padding: 9px 11px;
  border: 1px solid var(--c-line); border-radius: 9px; background: #f8fafd;
  text-decoration: none; transition: background var(--tr), border-color var(--tr);
}
.kf-doc:hover { background: #eef4ff; border-color: rgba(47,107,255,.42); }
.kf-doc-t { flex: 1 1 auto; font-size: 12.6px; line-height: 1.62; color: #2b3a4d; font-weight: 600; }
.kf-doc-go { flex: 0 0 auto; font-size: 11.8px; color: #2f6bff; font-weight: 700; white-space: nowrap; }
.kf-doc:hover .kf-doc-go { text-decoration: underline; }

/* 拿不准时给的三条出路 */
.kf-act { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 10px; }
.kf-act-b {
  flex: 1 1 auto; min-width: 118px; text-align: center; padding: 8px 10px;
  border-radius: 999px; background: var(--grad); color: #fff;
  font-size: 12.4px; font-weight: 600; text-decoration: none;
}
.kf-act-b:hover { filter: brightness(1.06); }
.kf-act-b.tel { flex: 1 1 100%; font-size: 14px; font-weight: 800; letter-spacing: .3px; }
.kf-act-b.ghost { background: #f2f5f9; color: #5a6b7f; }

/* 页面内「和小V聊聊」按钮 */
.btn-kf {
  display: inline-flex; align-items: center; gap: 9px; cursor: pointer;
  background: var(--grad); color: #fff; border: 0; border-radius: 999px;
  padding: 13px 26px; font-size: 15.5px; font-weight: 700;
  box-shadow: 0 8px 20px rgba(22,166,199,.36); transition: filter var(--tr), transform var(--tr);
}
.btn-kf:hover { filter: brightness(1.06); transform: translateY(-1px); }
.btn-kf svg { width: 20px; height: 20px; }
.btn-kf.alt { background: #fff; color: #2f6bff; box-shadow: none; border: 1px solid rgba(47,107,255,.4); }

@media (max-width: 600px) {
  .float-rail button.kf-fab, .float-rail a.kf-fab { width: 58px; height: 58px; right: 12px; }
  .kf-fab svg { width: 29px; height: 29px; }
  .kf-fab .kf-name { font-size: 9.5px; letter-spacing: 0; }
  .kf-nudge { width: 186px; padding: 9px 28px 9px 12px; font-size: 12px; }
  .kf-nudge b { font-size: 12.8px; }
  .kf-fab .kf-tip { display: none; }
  .float-rail button.kf-wx svg { width: 22px; height: 22px; }
  .kf-wx-tip { display: none; }                 /* 触屏没有 hover，文字标签不出 */
  .kf-wx-pop { width: 192px; padding: 11px 11px 9px; border-radius: 12px; }
  .kf-wx-pop b { font-size: 13.2px; }
  .kf-wx-pop img { border-radius: 6px; }
  .kf-wx-pop p { font-size: 11.6px; }
  .kf-panel {
    left: 0; right: 0; bottom: 0; width: auto; max-height: none; height: 88vh;
    border-radius: 14px 14px 0 0; transform-origin: bottom center;
  }
  /* 输入框必须 >=16px，否则 iOS Safari 聚焦时自动放大整页 */
  .kf-input { font-size: 16px; }
  .kf-log { padding: 12px 11px 12px; }
  .kf-msg .bubble { font-size: 14px; }
}
@media (prefers-reduced-motion: reduce) {
  .kf-fab::before { animation: none; }
  .kf-panel { transition: opacity .15s linear; }
}


/* ===== 会议活动 · 展会现场物料 ===== */
.booth-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin:14px 0 8px}
.booth-item{border:1px solid var(--c-line);border-radius:10px;overflow:hidden;background:var(--c-bg)}
.booth-item figure{margin:0}
.booth-item picture{display:block}
.booth-item img{display:block;width:100%;height:auto}
.booth-item .cap{padding:11px 13px 13px}
.booth-item .cap h3{font-size:14px;font-weight:700;color:var(--c-deep);margin:0 0 5px;line-height:1.5}
.booth-item .cap p{font-size:13px;color:var(--c-muted);margin:0;line-height:1.75}
.booth-lead{color:var(--c-muted);font-size:14px;margin:6px 0 4px;line-height:1.8}
.booth-note{color:var(--c-muted);font-size:12.5px;margin:6px 0 0;line-height:1.7}
@media (max-width:900px){.booth-grid{grid-template-columns:1fr;gap:12px}}

/* ===== 小V 完整对话入口（直接外链元器官方页，顶层打开，不用 iframe） ===== */
.yq-sec{margin:24px 0 6px}
.yq-sec h2{font-size:22px;color:var(--c-deep);margin:0 0 8px}
.yq-lead{color:var(--c-muted);font-size:14.5px;line-height:1.85;margin:0 0 14px}
.yq-chat-wrap{border:1px solid var(--c-line);border-radius:12px;overflow:hidden;background:#fff;box-shadow:0 6px 18px rgba(15,40,80,.07)}
.yq-stage{background:#f7f9fc;padding:20px 22px 22px}
.yq-go{display:grid;grid-template-columns:1.15fr .85fr;gap:18px;align-items:start}
.yq-go-l h3{margin:0 0 8px;font-size:17px;color:var(--c-deep)}
.yq-go-l p{margin:0 0 10px;font-size:14px;color:var(--c-muted);line-height:1.85}
.yq-start{margin:0 0 14px!important;font-size:13.5px}
.yq-start b{color:#2f6bff;font-weight:600}
.yq-act{margin:0;display:flex;flex-wrap:wrap;gap:10px}
.yq-go-r{display:grid;gap:8px}
.yq-tile{border:1px solid var(--c-line);border-radius:9px;background:#fff;padding:10px 13px}
.yq-tile b{display:inline-block;min-width:22px;height:22px;line-height:22px;text-align:center;border-radius:6px;background:var(--c-bg);color:#2f6bff;font-size:12px;margin-right:7px}
.yq-tile span{font-size:13.5px;font-weight:700;color:var(--c-deep)}
.yq-tile em{display:block;font-style:normal;font-size:12.5px;color:var(--c-muted);line-height:1.7;margin-top:3px}
.yq-sub{margin:22px 0 10px;font-size:15px;color:var(--c-deep)}
.yq-fb-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.yq-fb-grid details{border:1px solid var(--c-line);border-radius:9px;padding:10px 13px;background:var(--c-bg)}
.yq-fb-grid summary{cursor:pointer;font-weight:700;font-size:13.5px;color:var(--c-deep)}
.yq-fb-grid summary::marker{color:#2f6bff}
.yq-fb-grid p{margin:7px 0 2px;font-size:13px;color:var(--c-muted);line-height:1.85}
.yq-fb-act{margin:14px 0 2px;display:flex;flex-wrap:wrap;gap:10px}
.yq-note{margin:10px 0 0;font-size:12.5px;color:var(--c-muted);line-height:1.7}
.yq-note a{color:#2f6bff;font-weight:600;text-decoration:underline;text-underline-offset:2px}
.yq-note a:hover{text-decoration:none}
@media (max-width:760px){
  .yq-fb-grid{grid-template-columns:1fr}
  .yq-go{grid-template-columns:1fr}
  .yq-sec h2{font-size:19px}
  .yq-stage{padding:16px 15px 18px}
  .yq-chat-wrap{border-radius:10px}
}