/* =========================================================
   TRI-RAY 萃昱生物 企业官网 - 全站样式
   风格：简约大气 / 科技感 / 现代微生物科技企业
   ========================================================= */
:root {
  --blue-900: #0a2e5c;
  --blue-800: #0d3a72;
  --blue-700: #0e4d92;
  --blue-600: #1460ae;
  --blue-500: #1b6fc2;
  --cyan: #29a8e0;
  --cyan-soft: #7fc7ec;
  --sky: #eaf4fc;
  --sky-2: #f5f9fd;
  --ink: #16273b;
  --muted: #5a6b80;
  --line: #e3edf6;
  --card-shadow: 0 10px 30px rgba(14, 77, 146, 0.08);
  --card-shadow-hover: 0 18px 44px rgba(14, 77, 146, 0.16);
  --radius: 16px;
  --nav-h: 72px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: "PingFang SC", "Microsoft YaHei", "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  color: var(--ink);
  background: #fff;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }

.container { width: min(1180px, 92%); margin: 0 auto; }

/* ---------- 顶部导航 ---------- */
.nav {
  position: fixed;
  inset: 0 0 auto 0;
  height: var(--nav-h);
  background: rgba(255, 255, 255, 0.86);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
  z-index: 100;
}
.nav-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand img { height: 44px; width: auto; }
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-text b { font-size: 18px; letter-spacing: 1px; color: var(--blue-800); }
.brand-text span { font-size: 11px; color: var(--muted); letter-spacing: 3px; }

.nav-links { display: flex; align-items: center; gap: 6px; }
.nav-links a {
  padding: 9px 18px;
  border-radius: 999px;
  font-size: 15px;
  color: var(--ink);
  transition: all 0.25s ease;
}
.nav-links a:hover { color: var(--blue-600); background: var(--sky); }
.nav-links a.active {
  color: #fff;
  background: linear-gradient(135deg, var(--blue-700), var(--cyan));
  box-shadow: 0 6px 16px rgba(20, 96, 174, 0.35);
}
.nav-toggle { display: none; background: none; border: none; cursor: pointer; padding: 8px; }
.nav-toggle svg { width: 26px; height: 26px; stroke: var(--blue-800); }

/* ---------- 页面 Banner（内页） ---------- */
.page-banner {
  position: relative;
  padding: calc(var(--nav-h) + 72px) 0 72px;
  background:
    radial-gradient(900px 340px at 85% -10%, rgba(41, 168, 224, 0.18), transparent 60%),
    radial-gradient(700px 300px at 8% 110%, rgba(14, 77, 146, 0.10), transparent 60%),
    linear-gradient(180deg, #f2f8fd 0%, #ffffff 100%);
  overflow: hidden;
}
.page-banner::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(20, 96, 174, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(20, 96, 174, 0.05) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: linear-gradient(180deg, #000, transparent 85%);
  -webkit-mask-image: linear-gradient(180deg, #000, transparent 85%);
}
.page-banner .container { position: relative; }
.page-banner .crumb { font-size: 13px; color: var(--muted); margin-bottom: 10px; }
.page-banner .crumb a { color: var(--blue-600); }
.page-banner h1 { font-size: clamp(30px, 4.4vw, 44px); color: var(--blue-900); letter-spacing: 1px; }
.page-banner p { margin-top: 12px; color: var(--muted); font-size: 16px; max-width: 720px; }

/* ---------- 通用 Section ---------- */
.section { padding: 88px 0; }
.section.alt { background: linear-gradient(180deg, var(--sky-2), #fff); }
.section-head { text-align: center; max-width: 760px; margin: 0 auto 54px; }
.section-head .kicker {
  display: inline-block;
  font-size: 13px;
  letter-spacing: 4px;
  color: var(--blue-600);
  background: var(--sky);
  border: 1px solid rgba(41, 168, 224, 0.35);
  padding: 5px 16px;
  border-radius: 999px;
  margin-bottom: 16px;
}
.section-head h2 {
  font-size: clamp(26px, 3.4vw, 36px);
  color: var(--blue-900);
  letter-spacing: 1px;
}
.section-head p { margin-top: 12px; color: var(--muted); font-size: 15.5px; }

/* ---------- 首页 Hero ---------- */
.hero {
  position: relative;
  padding: calc(var(--nav-h) + 64px) 0 90px;
  background:
    radial-gradient(1100px 480px at 88% -8%, rgba(41, 168, 224, 0.22), transparent 60%),
    radial-gradient(900px 420px at -6% 105%, rgba(14, 77, 146, 0.12), transparent 60%),
    linear-gradient(180deg, #f3f9fe 0%, #ffffff 100%);
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(20, 96, 174, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(20, 96, 174, 0.05) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(180deg, #000, transparent 90%);
  -webkit-mask-image: linear-gradient(180deg, #000, transparent 90%);
}
.hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: 1.02fr 1.1fr;
  gap: 48px;
  align-items: center;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13.5px;
  color: var(--blue-700);
  background: rgba(255, 255, 255, 0.85);
  border: 1px solid rgba(41, 168, 224, 0.4);
  padding: 7px 18px;
  border-radius: 999px;
  box-shadow: 0 4px 14px rgba(14, 77, 146, 0.08);
}
.hero-badge .dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 4px rgba(41, 168, 224, 0.18);
  animation: pulse 2.2s infinite;
}
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 4px rgba(41, 168, 224, 0.18); }
  50% { box-shadow: 0 0 0 8px rgba(41, 168, 224, 0.06); }
}
.hero h1 {
  margin-top: 22px;
  font-size: clamp(34px, 4.8vw, 52px);
  line-height: 1.22;
  color: var(--blue-900);
  letter-spacing: 1px;
}
.hero h1 .grad {
  background: linear-gradient(120deg, var(--blue-700), var(--cyan));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero .sub {
  margin-top: 18px;
  font-size: 17px;
  color: var(--muted);
  max-width: 540px;
}
.hero-tags { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 26px; }
.hero-tags span {
  font-size: 14px;
  color: var(--blue-700);
  background: #fff;
  border: 1px solid rgba(41, 168, 224, 0.35);
  padding: 8px 20px;
  border-radius: 999px;
  box-shadow: 0 4px 12px rgba(14, 77, 146, 0.06);
}
.hero-cta { display: flex; gap: 16px; margin-top: 34px; flex-wrap: wrap; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 30px;
  border-radius: 999px;
  font-size: 15.5px;
  transition: all 0.25s ease;
  cursor: pointer;
  border: none;
}
.btn-primary {
  color: #fff;
  background: linear-gradient(135deg, var(--blue-700), var(--cyan));
  box-shadow: 0 10px 26px rgba(20, 96, 174, 0.35);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 14px 32px rgba(20, 96, 174, 0.45); }
.btn-ghost {
  color: var(--blue-700);
  background: #fff;
  border: 1px solid rgba(14, 77, 146, 0.28);
}
.btn-ghost:hover { border-color: var(--cyan); color: var(--cyan); transform: translateY(-2px); }

.hero-visual { position: relative; }
.hero-visual .glow {
  position: absolute;
  inset: -8% -6%;
  background: radial-gradient(closest-side, rgba(41, 168, 224, 0.28), transparent 70%);
  filter: blur(6px);
  z-index: 0;
}
.hero-visual img {
  position: relative;
  border-radius: 20px;
  box-shadow: 0 30px 70px rgba(10, 46, 92, 0.22);
  border: 1px solid rgba(255, 255, 255, 0.7);
}
.hero-visual .float-chip {
  position: absolute;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(41, 168, 224, 0.35);
  border-radius: 12px;
  padding: 10px 16px;
  font-size: 13px;
  color: var(--blue-800);
  box-shadow: 0 10px 26px rgba(14, 77, 146, 0.16);
  display: flex;
  align-items: center;
  gap: 8px;
  animation: floaty 4.5s ease-in-out infinite;
}
.hero-visual .chip-1 { top: 8%; left: -4%; }
.hero-visual .chip-2 { bottom: 10%; right: -3%; animation-delay: 1.6s; }
.hero-visual .chip-3 { bottom: -4%; left: 12%; animation-delay: 3s; }
@keyframes floaty {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

/* ---------- 业务版图卡片 ---------- */
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; }

.card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 32px 28px;
  box-shadow: var(--card-shadow);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}
.card:hover { transform: translateY(-6px); box-shadow: var(--card-shadow-hover); border-color: rgba(41, 168, 224, 0.45); }
.card .icon-wrap {
  width: 58px; height: 58px;
  border-radius: 15px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--sky), rgba(41, 168, 224, 0.16));
  border: 1px solid rgba(41, 168, 224, 0.3);
  margin-bottom: 20px;
}
.card .icon-wrap svg { width: 28px; height: 28px; stroke: var(--blue-600); }
.card h3 { font-size: 19px; color: var(--blue-900); margin-bottom: 10px; }
.card p { font-size: 14.5px; color: var(--muted); }
.card .more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 16px;
  font-size: 14px;
  color: var(--blue-600);
  font-weight: 600;
}
.card .more:hover { color: var(--cyan); }

/* ---------- 能力编号卡片 ---------- */
.cap-card { counter-increment: cap; }
.cap-card::before {
  content: "0" counter(cap);
  position: absolute;
  top: 18px;
  right: 22px;
  font-size: 40px;
  font-weight: 800;
  color: rgba(20, 96, 174, 0.08);
  letter-spacing: 2px;
}
.cap-grid { counter-reset: cap; }

/* ---------- 数据条 ---------- */
.stats-band {
  background:
    radial-gradient(700px 300px at 90% 0%, rgba(41, 168, 224, 0.25), transparent 60%),
    linear-gradient(135deg, var(--blue-900) 0%, var(--blue-700) 55%, var(--blue-600) 100%);
  color: #fff;
  padding: 64px 0;
}
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; text-align: center; }
.stat b { display: block; font-size: clamp(28px, 3.4vw, 40px); letter-spacing: 1px; }
.stat b em { font-style: normal; color: var(--cyan-soft); }
.stat span { display: block; margin-top: 8px; font-size: 14px; color: rgba(255, 255, 255, 0.78); letter-spacing: 2px; }

/* ---------- 产品卡片（产品页） ---------- */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-bottom: 46px;
}
.filter-bar button {
  padding: 9px 24px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--muted);
  font-size: 14.5px;
  cursor: pointer;
  transition: all 0.25s ease;
}
.filter-bar button:hover { border-color: var(--cyan); color: var(--blue-600); }
.filter-bar button.active {
  background: linear-gradient(135deg, var(--blue-700), var(--cyan));
  border-color: transparent;
  color: #fff;
  box-shadow: 0 8px 20px rgba(20, 96, 174, 0.3);
}

.product-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.product-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--card-shadow);
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
}
.product-card:hover { transform: translateY(-6px); box-shadow: var(--card-shadow-hover); border-color: rgba(41, 168, 224, 0.45); }
.product-card.hidden { display: none; }
.product-media {
  position: relative;
  height: 190px;
  overflow: hidden;
  background: linear-gradient(135deg, var(--sky), #fff);
  display: flex;
  align-items: center;
  justify-content: center;
}
.product-media img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.product-card:hover .product-media img { transform: scale(1.04); }
.product-media .p-illu { width: 76px; height: 76px; }
.product-media .cat-tag {
  position: absolute;
  top: 16px; left: 16px;
  font-size: 12.5px;
  letter-spacing: 1px;
  color: #fff;
  background: linear-gradient(135deg, var(--blue-700), var(--cyan));
  padding: 5px 14px;
  border-radius: 999px;
  box-shadow: 0 6px 14px rgba(20, 96, 174, 0.3);
}
.product-body { padding: 22px 22px 24px; flex: 1; display: flex; flex-direction: column; }
.product-body h3 { font-size: 18px; color: var(--blue-900); }
.product-body .en { font-size: 11.5px; color: var(--cyan); letter-spacing: 1.5px; margin-top: 2px; }
.product-body p.desc { margin-top: 10px; font-size: 13.5px; color: var(--muted); }
.product-body ul.feats { margin-top: 13px; display: grid; gap: 6px; }
.product-body ul.feats li {
  position: relative;
  padding-left: 22px;
  font-size: 14px;
  color: var(--ink);
}
.product-body ul.feats li::before {
  content: "";
  position: absolute;
  left: 0; top: 9px;
  width: 12px; height: 12px;
  border-radius: 4px;
  background: linear-gradient(135deg, var(--blue-600), var(--cyan));
  opacity: 0.85;
}
.product-body .brand-line {
  margin-top: auto;
  padding-top: 18px;
  font-size: 13px;
  color: var(--muted);
  display: flex;
  align-items: center;
  gap: 8px;
}
.badge-self, .badge-agent {
  font-size: 12px;
  padding: 3px 12px;
  border-radius: 999px;
}
.badge-self { color: var(--blue-700); background: var(--sky); border: 1px solid rgba(41, 168, 224, 0.4); }
.badge-agent { color: #8a6d1f; background: #fdf7e7; border: 1px solid #eadfb8; }

/* 分组标题 */
.cat-head {
  display: flex;
  align-items: center;
  gap: 14px;
  margin: 56px 0 26px;
}
.cat-head:first-of-type { margin-top: 0; }
.cat-head .bar { width: 6px; height: 26px; border-radius: 4px; background: linear-gradient(180deg, var(--blue-600), var(--cyan)); }
.cat-head h2 { font-size: 24px; color: var(--blue-900); }
.cat-head span { font-size: 13px; color: var(--muted); letter-spacing: 2px; }

/* 品牌子分组标题（试剂耗材按品牌分组） */
.brand-head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 34px 0 18px;
  padding-left: 2px;
}
.brand-head:first-of-type { margin-top: 10px; }
.brand-tag {
  display: inline-flex;
  align-items: center;
  font-size: 14px;
  font-weight: 700;
  color: #fff;
  background: linear-gradient(180deg, var(--blue-600), var(--cyan));
  padding: 4px 14px;
  border-radius: 999px;
  letter-spacing: .5px;
  white-space: nowrap;
}
.brand-sub { font-size: 13px; color: var(--muted); }

/* ---------- 关于我们 ---------- */
.about-lede {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 48px;
  align-items: center;
}
.about-lede .text h2 { font-size: clamp(24px, 3vw, 32px); color: var(--blue-900); margin-bottom: 18px; }
.about-lede .text p { color: var(--muted); font-size: 15.5px; margin-bottom: 14px; }
.about-lede .visual { position: relative; }
.about-lede .visual .panel {
  border-radius: 20px;
  background:
    radial-gradient(500px 240px at 90% 0%, rgba(41, 168, 224, 0.3), transparent 60%),
    linear-gradient(150deg, var(--blue-900), var(--blue-700));
  color: #fff;
  padding: 40px 36px;
  box-shadow: 0 24px 60px rgba(10, 46, 92, 0.28);
}
.about-lede .visual .panel h3 { font-size: 20px; margin-bottom: 14px; letter-spacing: 1px; }
.about-lede .visual .panel li {
  position: relative;
  padding-left: 24px;
  font-size: 14.5px;
  color: rgba(255, 255, 255, 0.88);
  margin-bottom: 10px;
}
.about-lede .visual .panel li::before {
  content: "";
  position: absolute;
  left: 0; top: 8px;
  width: 13px; height: 13px;
  border-radius: 50%;
  border: 3px solid var(--cyan-soft);
}

.value-card { text-align: center; padding: 40px 28px; }
.value-card .icon-wrap { margin-left: auto; margin-right: auto; }
.value-card h3 { font-size: 18px; }
.value-card p { font-size: 14px; }

/* ---------- 联系我们 ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1.15fr; gap: 40px; align-items: start; }
.contact-card {
  display: flex;
  gap: 18px;
  padding: 26px 24px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--card-shadow);
  margin-bottom: 20px;
  transition: all 0.3s ease;
}
.contact-card:hover { border-color: rgba(41, 168, 224, 0.45); box-shadow: var(--card-shadow-hover); }
.contact-card .icon-wrap { width: 50px; height: 50px; min-width: 50px; border-radius: 13px; margin: 0; }
.contact-card .icon-wrap svg { width: 24px; height: 24px; }
.contact-card h4 { font-size: 16px; color: var(--blue-900); }
.contact-card p { font-size: 14.5px; color: var(--muted); margin-top: 4px; }
.contact-card p b { color: var(--ink); font-weight: 600; }

.form-panel {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--card-shadow);
  padding: 36px;
}
.form-panel h3 { font-size: 20px; color: var(--blue-900); margin-bottom: 6px; }
.form-panel > p { font-size: 14px; color: var(--muted); margin-bottom: 24px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { margin-bottom: 18px; }
.form-group label { display: block; font-size: 13.5px; color: var(--ink); margin-bottom: 7px; font-weight: 600; }
.form-group label i { color: #d64545; font-style: normal; }
.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 12px 15px;
  border: 1px solid var(--line);
  border-radius: 10px;
  font-size: 14.5px;
  font-family: inherit;
  color: var(--ink);
  background: var(--sky-2);
  outline: none;
  transition: all 0.25s ease;
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--cyan);
  background: #fff;
  box-shadow: 0 0 0 3px rgba(41, 168, 224, 0.15);
}
.form-group textarea { min-height: 120px; resize: vertical; }
.form-success {
  display: none;
  margin-top: 16px;
  padding: 14px 18px;
  border-radius: 10px;
  background: #eefaf3;
  border: 1px solid #b8e6cd;
  color: #1d7a4a;
  font-size: 14px;
}

/* ---------- CTA 条 ---------- */
.cta-band {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(600px 260px at 85% 20%, rgba(41, 168, 224, 0.35), transparent 60%),
    linear-gradient(135deg, var(--blue-900), var(--blue-600));
  color: #fff;
  border-radius: 22px;
  padding: 56px 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  flex-wrap: wrap;
}
.cta-band h2 { font-size: clamp(22px, 3vw, 30px); letter-spacing: 1px; }
.cta-band p { margin-top: 8px; color: rgba(255, 255, 255, 0.8); font-size: 15px; }
.cta-band .btn { background: #fff; color: var(--blue-700); }
.cta-band .btn:hover { transform: translateY(-2px); box-shadow: 0 14px 30px rgba(0, 0, 0, 0.25); }

/* ---------- 页脚 ---------- */
.footer {
  background: var(--blue-900);
  color: rgba(255, 255, 255, 0.75);
  padding: 64px 0 0;
  margin-top: 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding-bottom: 48px;
}
.footer h4 { color: #fff; font-size: 16px; margin-bottom: 18px; letter-spacing: 1px; }
.footer .f-brand { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; }
.footer .f-brand img { height: 46px; background: #fff; border-radius: 10px; padding: 5px; }
.footer .f-brand b { color: #fff; font-size: 18px; letter-spacing: 1px; }
.footer p, .footer li { font-size: 13.5px; line-height: 2; }
.footer li a { transition: color 0.2s; }
.footer li a:hover { color: var(--cyan-soft); }
.footer .copyright {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding: 20px 0;
  text-align: center;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.5);
}

/* ---------- 首页轮播 Banner ---------- */
.hero { min-height: 0; }
.carousel-track { position: relative; }
.carousel-slide {
  display: none;
  grid-template-columns: 1.15fr 1fr;
  gap: 36px;
  align-items: center;
  min-height: 480px;
}
.carousel-slide.active { display: grid; }

/* ===== 文案侧 ===== */
.slide-copy .hero-badge { margin-top: 0; }
.slide-copy h1 {
  margin-top: 22px;
  font-size: clamp(32px, 4.2vw, 48px);
  line-height: 1.22;
  color: var(--blue-900);
  letter-spacing: 1px;
}
.slide-copy h1 .grad {
  background: linear-gradient(120deg, var(--blue-700), var(--cyan));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.slide-copy .sub {
  margin-top: 14px;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--muted);
  max-width: 520px;
}
.slide-feats { margin-top: 26px; display: grid; gap: 14px; }
.slide-feats li {
  position: relative;
  padding-left: 36px;
  font-size: 15.5px;
  font-weight: 500;
  color: var(--ink);
  line-height: 1.55;
}
.slide-feats li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 2px;
  width: 22px;
  height: 22px;
  border-radius: 7px;
  background: linear-gradient(135deg, var(--blue-600), var(--cyan));
  box-shadow: 0 4px 10px rgba(20, 96, 174, 0.25);
}
.slide-feats li::after {
  content: "";
  position: absolute;
  left: 6px;
  top: 9px;
  width: 10px;
  height: 5.5px;
  border-left: 2.4px solid #fff;
  border-bottom: 2.4px solid #fff;
  transform: rotate(-45deg);
}
.slide-copy .hero-cta { margin-top: 34px; }

/* ===== 视觉侧：科技舞台式构图（无卡片，融入背景） ===== */
.slide-media {
  position: relative;
  min-height: 460px;
  display: flex;
  align-items: center;
  justify-content: center;
}
/* 设备图：正片叠底融入背景，纯裁切无淡化；不做入场动画，完整展示关键信息 */
.slide-media { display: flex; align-items: center; justify-content: flex-end; }
.slide-media img {
  position: relative;
  z-index: 1;
  width: 132%;
  max-width: none;
  margin-right: -30%;
  height: auto;
  object-fit: contain;
  mix-blend-mode: multiply;
  filter: saturate(1.06) contrast(1.02);
}

/* 轮播箭头 */
.carousel-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 5;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid rgba(41, 168, 224, 0.35);
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: blur(10px);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 18px rgba(14, 77, 146, 0.12);
  transition: all 0.25s ease;
  opacity: 0.85;
}
.carousel-track:hover .carousel-btn { opacity: 1; }
.carousel-btn svg { width: 19px; height: 19px; stroke: var(--blue-700); }
.carousel-btn:hover { background: var(--blue-700); border-color: var(--blue-700); transform: translateY(-50%) scale(1.06); }
.carousel-btn:hover svg { stroke: #fff; }
.carousel-btn.prev { left: -8px; }
.carousel-btn.next { right: -8px; }

/* 轮播圆点 */
.carousel-dots {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 9px;
  margin-top: 36px;
}
.carousel-dots button {
  width: 9px;
  height: 9px;
  border-radius: 999px;
  border: none;
  background: rgba(14, 77, 146, 0.18);
  cursor: pointer;
  transition: all 0.35s cubic-bezier(0.22, 0.8, 0.3, 1);
  padding: 0;
}
.carousel-dots button:hover { background: rgba(14, 77, 146, 0.38); }
.carousel-dots button.active {
  width: 34px;
  background: linear-gradient(135deg, var(--blue-700), var(--cyan));
  box-shadow: 0 4px 12px rgba(20, 96, 174, 0.35);
}

/* ---------- 滚动显现动画 ---------- */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal.d1 { transition-delay: 0.1s; }
.reveal.d2 { transition-delay: 0.2s; }
.reveal.d3 { transition-delay: 0.3s; }

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .carousel-slide { grid-template-columns: 1fr; gap: 24px; min-height: 0; }
  .slide-media { order: -1; min-height: 0; }
  .slide-media img { width: 100%; margin-left: 0; margin-right: 0; }
  .carousel-btn.prev { left: 6px; }
  .carousel-btn.next { right: 6px; }
  .about-lede { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .product-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .nav-links {
    position: fixed;
    top: var(--nav-h);
    right: 0;
    width: min(320px, 84%);
    height: calc(100vh - var(--nav-h));
    background: #fff;
    flex-direction: column;
    align-items: flex-start;
    padding: 28px 24px;
    gap: 10px;
    box-shadow: -12px 0 40px rgba(10, 46, 92, 0.12);
    transform: translateX(100%);
    transition: transform 0.3s ease;
  }
  .nav-links.open { transform: translateX(0); }
  .nav-toggle { display: block; }
  .grid-4, .grid-3, .grid-2, .form-row { grid-template-columns: 1fr; }
  .product-grid { grid-template-columns: 1fr; }
  .product-media { height: 210px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 32px 12px; }
  .section { padding: 64px 0; }
  .cta-band { padding: 40px 28px; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .hero-visual .float-chip { display: none; }
  .hero { padding-bottom: 64px; }
  .carousel-slide { gap: 20px; }
  .slide-copy h1 { font-size: 28px; }
  .slide-copy .sub { font-size: 14.5px; }
  .slide-feats { gap: 10px; }
  .slide-feats li { font-size: 14px; padding-left: 30px; }
  .slide-feats li::before { width: 19px; height: 19px; border-radius: 6px; }
  .slide-feats li::after { left: 4.5px; top: 7.5px; width: 9px; height: 5px; }
  .slide-media img { width: 100%; margin-left: 0; margin-right: 0; }
  .carousel-btn { display: none; }
  .hero { padding-bottom: 56px; }
  .carousel-dots { margin-top: 26px; }
}

/* ---------- 产品卡片可点击 ---------- */
.product-card.clickable { cursor: pointer; }
.detail-enter {
  display: inline-block;
  margin-top: 14px;
  font-size: 14px;
  font-weight: 600;
  color: var(--blue-600);
  transition: color .2s, transform .2s;
}
.product-card.clickable:hover .detail-enter { color: var(--cyan); transform: translateX(4px); }

/* ---------- 详情页 ---------- */
.detail-hero {
  padding-top: calc(var(--nav-h) + 36px);
  padding-bottom: 56px;
  background: linear-gradient(180deg, var(--sky-2), #fff);
  position: relative; overflow: hidden;
}
.detail-hero::before {
  content: ""; position: absolute; right: -120px; top: -120px;
  width: 420px; height: 420px;
  background: radial-gradient(circle, rgba(41,168,224,.14), transparent 70%);
}
.detail-hero-grid { display: grid; grid-template-columns: 1.05fr 1fr; gap: 56px; align-items: center; position: relative; }
.detail-cat {
  display: inline-block; font-size: 13px; letter-spacing: 2px; color: var(--blue-600);
  background: var(--sky); border: 1px solid rgba(41,168,224,.35);
  padding: 5px 14px; border-radius: 999px; margin-bottom: 16px;
}
.detail-hero h1 { font-size: clamp(28px, 4vw, 42px); color: var(--blue-900); letter-spacing: 1px; line-height: 1.2; }
.detail-hero .en { margin-top: 12px; font-size: 13px; letter-spacing: 2px; color: var(--muted); }
.detail-hero .tagline { margin-top: 18px; font-size: 16px; color: var(--muted); max-width: 520px; }
.detail-cta-row { margin-top: 26px; display: flex; gap: 14px; flex-wrap: wrap; }
.detail-media {
  position: relative; border-radius: var(--radius); overflow: hidden; background: #fff;
  box-shadow: var(--card-shadow); border: 1px solid var(--line);
  min-height: 340px; display: flex; align-items: center; justify-content: center;
}
.detail-media img { width: 100%; height: 100%; object-fit: cover; }
.detail-media .illu-svg { width: 78%; height: auto; padding: 24px; }
.detail-badge {
  position: absolute; top: 16px; left: 16px; font-size: 12.5px; font-weight: 600;
  padding: 6px 14px; border-radius: 999px; backdrop-filter: blur(4px);
}
.badge-service { color: #1f6e4a; background: rgba(231,247,239,.92); border: 1px solid #bfe6d3; }

/* 区块标题 */
.sec-head { display: flex; align-items: center; gap: 14px; margin-bottom: 40px; }
.sec-head .bar { width: 6px; height: 28px; border-radius: 4px; background: linear-gradient(180deg, var(--blue-600), var(--cyan)); }
.sec-head h2 { font-size: clamp(22px, 3vw, 30px); color: var(--blue-900); letter-spacing: 1px; }

/* 概述 */
.overview p { font-size: 16px; color: #33455c; max-width: 860px; margin-bottom: 16px; }
.stat-mini { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: 34px; }
.stat-mini-item { background: var(--sky-2); border: 1px solid var(--line); border-radius: 14px; padding: 22px 18px; text-align: center; }
.sm-val { font-size: 24px; font-weight: 700; color: var(--blue-600); letter-spacing: .5px; }
.sm-lab { margin-top: 8px; font-size: 13.5px; color: var(--muted); }

/* 核心亮点 */
.highlight-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.highlight-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 28px 26px; box-shadow: var(--card-shadow);
  transition: transform .25s, box-shadow .25s, border-color .25s;
}
.highlight-card:hover { transform: translateY(-6px); box-shadow: var(--card-shadow-hover); border-color: rgba(41,168,224,.45); }
.hl-icon { width: 48px; height: 48px; border-radius: 12px; background: var(--sky); color: var(--blue-500); display: flex; align-items: center; justify-content: center; margin-bottom: 16px; }
.hl-icon svg { width: 26px; height: 26px; }
.highlight-card h3 { font-size: 18px; color: var(--blue-900); margin-bottom: 8px; }
.highlight-card p { font-size: 14.5px; color: var(--muted); }

/* 功能与特点 */
.feature-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.feature-item { display: flex; gap: 18px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 24px 26px; box-shadow: var(--card-shadow); }
.fi-num { font-size: 22px; font-weight: 700; color: var(--cyan); font-family: "Segoe UI", sans-serif; min-width: 42px; }
.fi-body h3 { font-size: 17px; color: var(--blue-900); margin-bottom: 8px; }
.fi-body p { font-size: 14.5px; color: var(--muted); }

/* 应用场景 */
.scenario-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.scenario-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 26px 22px; box-shadow: var(--card-shadow); transition: transform .25s, box-shadow .25s; }
.scenario-card:hover { transform: translateY(-6px); box-shadow: var(--card-shadow-hover); }
.sc-icon { width: 42px; height: 42px; border-radius: 10px; background: var(--sky); color: var(--blue-500); display: flex; align-items: center; justify-content: center; margin-bottom: 14px; }
.sc-icon svg { width: 22px; height: 22px; }
.scenario-card h3 { font-size: 16.5px; color: var(--blue-900); margin-bottom: 8px; }
.scenario-card p { font-size: 14px; color: var(--muted); }

/* 技术参数 */
.spec-wrap { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.spec-block { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 22px 24px; box-shadow: var(--card-shadow); }
.spec-title { font-size: 17px; color: var(--blue-900); margin-bottom: 14px; padding-bottom: 12px; border-bottom: 1px solid var(--line); }
.spec-table { width: 100%; border-collapse: collapse; }
.spec-table th, .spec-table td { text-align: left; padding: 11px 6px; font-size: 14px; border-bottom: 1px dashed var(--line); vertical-align: top; }
.spec-table th { color: var(--blue-700); font-weight: 600; width: 38%; }
.spec-table td { color: #33455c; }
.spec-table tr:last-child th, .spec-table tr:last-child td { border-bottom: none; }

/* 合规与质量 */
.compliance-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px 26px; }
.compliance-list li { display: flex; gap: 12px; align-items: flex-start; font-size: 15px; color: #33455c; }
.cm-icon { flex: 0 0 auto; width: 26px; height: 26px; border-radius: 8px; background: var(--sky); color: var(--blue-500); display: flex; align-items: center; justify-content: center; }
.cm-icon svg { width: 16px; height: 16px; }

/* 相关产品 */
.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.related-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; box-shadow: var(--card-shadow); transition: transform .25s, box-shadow .25s; display: block; }
.related-card:hover { transform: translateY(-6px); box-shadow: var(--card-shadow-hover); }
.rc-media { height: 170px; background: var(--sky-2); display: flex; align-items: center; justify-content: center; }
.rc-media img { width: 100%; height: 100%; object-fit: cover; }
.rc-media .illu-svg { width: 60%; }
.rc-body { padding: 18px 20px 22px; }
.rc-cat { display: inline-block; font-size: 12px; color: var(--blue-600); background: var(--sky); border: 1px solid rgba(41,168,224,.3); padding: 3px 10px; border-radius: 999px; margin-bottom: 10px; }
.rc-body h3 { font-size: 16.5px; color: var(--blue-900); margin-bottom: 10px; }
.rc-more { font-size: 14px; font-weight: 600; color: var(--blue-600); }
.related-card:hover .rc-more { color: var(--cyan); }

.notfound { text-align: center; padding: 80px 20px; }
.notfound h2 { font-size: 28px; color: var(--blue-900); margin-bottom: 14px; }
.notfound p { color: var(--muted); margin-bottom: 24px; }

/* ---------- 详情页响应式 ---------- */
@media (max-width: 1024px) {
  .detail-hero-grid { grid-template-columns: 1fr; gap: 32px; }
  .stat-mini { grid-template-columns: repeat(2, 1fr); }
  .highlight-grid { grid-template-columns: repeat(2, 1fr); }
  .feature-list { grid-template-columns: 1fr; }
  .scenario-grid { grid-template-columns: repeat(2, 1fr); }
  .spec-wrap { grid-template-columns: 1fr; }
  .compliance-list { grid-template-columns: 1fr; }
  .related-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .detail-hero { padding-top: calc(var(--nav-h) + 20px); padding-bottom: 36px; }
  .detail-media { min-height: 220px; }
  .detail-media img { height: 220px; }
  .stat-mini { grid-template-columns: repeat(2, 1fr); }
  .highlight-grid { grid-template-columns: 1fr; }
  .scenario-grid { grid-template-columns: 1fr; }
  .related-grid { grid-template-columns: 1fr; }
  .compliance-list { grid-template-columns: 1fr; }
  .feature-item { flex-direction: column; gap: 6px; }
}