:root {
  --bg: #f5f8fc;
  --surface: #ffffff;
  --surface-2: #eef3f8;
  --text: #18263c;
  --muted: #607086;
  --line: #dbe3ed;
  --primary: #005ac2;
  --primary-2: #1473d3;
  --accent: #13b6c8;
  --deep: #0a1a33;
  --deep-2: #0f2748;
  --shadow: 0 20px 44px rgba(10, 35, 70, 0.08);
  --radius: 22px;
  --container: 1220px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Segoe UI", "Microsoft YaHei", "PingFang SC", sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.container { width: min(var(--container), calc(100% - 32px)); margin: 0 auto; }
.topbar {
  background: var(--deep);
  color: rgba(255, 255, 255, 0.78);
  font-size: 13px;
}
.topbar-inner {
  min-height: 38px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  flex-wrap: wrap;
  padding: 6px 0;
}
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255,255,255,0.94);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(219, 227, 237, 0.9);
}
.header-inner {
  min-height: 86px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
}
.brand img {
  width: 48px;
  height: 48px;
}
.brand strong { display: block; font-size: 18px; }
.brand small { display: block; color: var(--muted); }
.site-nav {
  display: flex;
  align-items: center;
  gap: 22px;
}
.site-nav a {
  position: relative;
  font-size: 15px;
  color: var(--muted);
  padding: 8px 0;
}
.site-nav a:hover,
.site-nav a.active { color: var(--deep); }
.site-nav a:hover::after,
.site-nav a.active::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -12px;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
}
.nav-cta,
.btn {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  min-height: 48px;
  padding: 0 22px;
  border-radius: 999px;
  font-weight: 700;
  transition: transform .18s ease, box-shadow .18s ease;
}
.nav-cta:hover,
.btn:hover { transform: translateY(-1px); }
.nav-cta,
.btn-primary {
  color: #fff;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  box-shadow: 0 14px 26px rgba(0, 90, 194, 0.18);
}
.btn-secondary {
  background: #fff;
  border: 1px solid var(--line);
  color: var(--deep-2);
}
.menu-toggle {
  display: none;
  border: 1px solid var(--line);
  background: #fff;
  width: 42px;
  height: 42px;
  border-radius: 12px;
  font-size: 20px;
}
.hero {
  position: relative;
  overflow: hidden;
}
.hero-home {
  padding: 88px 0 70px;
  background:
    radial-gradient(circle at 82% 18%, rgba(19, 182, 200, 0.22), transparent 23%),
    radial-gradient(circle at 20% 15%, rgba(0, 90, 194, 0.16), transparent 30%),
    linear-gradient(180deg, #f9fbff 0%, #eef3f9 100%);
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.95fr;
  gap: 34px;
  align-items: center;
}
.hero-copy h1,
.page-hero h1 { margin: 0 0 14px; line-height: 1.08; }
.hero-copy h1 { font-size: clamp(38px, 5vw, 64px); }
.page-hero h1 { font-size: clamp(34px, 4vw, 54px); }
.eyebrow {
  margin: 0 0 10px;
  color: var(--primary);
  font-weight: 800;
  letter-spacing: .14em;
  text-transform: uppercase;
  font-size: 12px;
}
.eyebrow.accent { color: #7fe7ff; }
.lead {
  font-size: 18px;
  color: var(--muted);
  max-width: 60ch;
}
.hero-list,
.check-list,
.contact-list {
  padding-left: 18px;
  margin: 20px 0 0;
  color: var(--muted);
}
.hero-stage,
.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.card { padding: 26px; }
.stage-card { padding: 18px; }
.hero-tabs {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}
.hero-tab,
.filter-btn {
  border: 1px solid var(--line);
  background: #fff;
  color: var(--muted);
  border-radius: 999px;
  padding: 10px 16px;
  font-weight: 700;
  cursor: pointer;
}
.hero-tab.active,
.filter-btn.active {
  background: linear-gradient(90deg, var(--primary), var(--accent));
  color: #fff;
  border-color: transparent;
}
.hero-pane { display: none; }
.hero-pane.active { display: block; }
.hero-pane h3 { font-size: 28px; margin: 0 0 10px; }
.stage-visual {
  height: 260px;
  border-radius: 22px;
  margin-top: 18px;
  border: 1px solid rgba(219,227,237,0.9);
}
.mesh-a {
  background:
    radial-gradient(circle at 28% 30%, rgba(0,90,194,.28), transparent 18%),
    radial-gradient(circle at 68% 42%, rgba(19,182,200,.25), transparent 24%),
    linear-gradient(135deg, #ddeeff, #edf7fb 56%, #ffffff 100%);
}
.mesh-b {
  background:
    linear-gradient(135deg, rgba(0,90,194,.16), rgba(19,182,200,.16)),
    repeating-linear-gradient(45deg, #ffffff 0, #ffffff 18px, #f0f6fd 18px, #f0f6fd 36px);
}
.mesh-c {
  background:
    radial-gradient(circle at 22% 60%, rgba(19,182,200,.24), transparent 20%),
    radial-gradient(circle at 78% 28%, rgba(0,90,194,.2), transparent 24%),
    linear-gradient(180deg, #ecf6ff 0%, #ffffff 100%);
}
.section { padding: 76px 0; }
.page-hero {
  padding: 88px 0 36px;
  background: linear-gradient(180deg, #f9fbff 0%, #eef3f8 100%);
}
.light-bg { background: linear-gradient(180deg, #f2f6fb 0%, #edf3f9 100%); }
.dark-band {
  background: linear-gradient(135deg, #0a1c36 0%, #12345f 100%);
  color: #fff;
}
.dark-band p,
.dark-band h2,
.dark-band span,
.dark-band strong { color: #fff; }
.cta-section { padding-top: 20px; }
.section-head {
  max-width: 72ch;
  margin-bottom: 28px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.grid { display: grid; gap: 22px; }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0,1fr));
  gap: 18px;
}
.metric-item {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 24px;
  box-shadow: var(--shadow);
}
.metric-item strong {
  display: block;
  font-size: 28px;
  color: var(--primary);
}
.metric-item span { color: var(--muted); }
.icon-card img { width: 60px; height: 60px; margin-bottom: 18px; }
.icon-card h3,
.feature-card h3,
.news-card h3,
.scenario-card h2,
.download-card h3,
.media-feature h2 { margin-top: 0; }
.text-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--primary);
  font-weight: 700;
}
.split-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
  align-items: center;
}
.align-start { align-items: start; }
.solution-showcase { padding: 34px; background: linear-gradient(135deg, #0d5dc2, #11a8be); color: #fff; }
.solution-showcase .showcase-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0,1fr));
  gap: 16px;
}
.solution-showcase article {
  background: rgba(255,255,255,.14);
  border: 1px solid rgba(255,255,255,.2);
  border-radius: 18px;
  padding: 18px;
}
.solution-showcase span { display: block; font-size: 13px; opacity: .86; }
.solution-showcase strong { display: block; margin-top: 4px; font-size: 22px; }
.band-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 26px;
  align-items: center;
}
.band-cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0,1fr));
  gap: 16px;
}
.band-card {
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.14);
  border-radius: 18px;
  padding: 22px;
  min-height: 150px;
}
.band-card strong { display: block; font-size: 22px; margin-bottom: 6px; }
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 26px;
}
.chip,
.badge,
.meta-chip {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: 6px 12px;
  font-size: 13px;
  font-weight: 700;
  background: rgba(0, 90, 194, 0.08);
  color: var(--primary);
}
.badge.soft { background: rgba(0, 90, 194, 0.08); color: var(--primary); }
.product-card,
.news-card,
.feature-card,
.scenario-card,
.job-card,
.media-feature {
  transition: transform .18s ease, border-color .18s ease;
}
.product-card:hover,
.news-card:hover,
.feature-card:hover,
.scenario-card:hover,
.job-card:hover,
.media-feature:hover {
  transform: translateY(-3px);
  border-color: rgba(0, 90, 194, .24);
}
.hidden { display: none !important; }
.note-card,
.quote-card,
.contact-info-card,
.form-card,
.map-card {
  min-height: 100%;
}
.capability-panel {
  background: linear-gradient(180deg, #eef6ff 0%, #ffffff 100%);
}
.cap-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0,1fr));
  gap: 16px;
}
.cap-grid article {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 18px;
}
.cap-grid strong { display: block; font-size: 22px; color: var(--primary); }
.process-card { text-align: center; }
.process-steps {
  display: grid;
  grid-template-columns: repeat(6, minmax(0,1fr));
  gap: 12px;
  margin-top: 22px;
}
.process-steps span {
  padding: 14px 12px;
  border-radius: 14px;
  background: linear-gradient(180deg, #eef5fc 0%, #ffffff 100%);
  border: 1px solid var(--line);
  font-weight: 700;
  color: var(--deep-2);
}
.faq-list { display: grid; gap: 16px; }
.faq-item { padding: 0; overflow: hidden; }
.faq-question {
  width: 100%;
  padding: 20px 24px;
  border: 0;
  background: #fff;
  text-align: left;
  font: inherit;
  color: var(--text);
  font-weight: 700;
  cursor: pointer;
}
.faq-answer { display: none; padding: 0 24px 22px; }
.faq-item.open .faq-answer { display: block; }
.news-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 18px;
}
.news-list li {
  border-bottom: 1px solid var(--line);
  padding-bottom: 18px;
  display: grid;
  gap: 8px;
}
.news-list li:last-child { border-bottom: 0; padding-bottom: 0; }
.meta-line { color: var(--muted); }
.narrow { width: min(880px, calc(100% - 32px)); }
.article-body h2 { margin-top: 28px; }
.article-body ul { padding-left: 18px; color: var(--muted); }
.visual-card { background: linear-gradient(180deg, #f7fbff 0%, #edf4fc 100%); }
.product-visual {
  min-height: 340px;
  display: grid;
  place-items: center;
  border-radius: 22px;
  border: 1px dashed rgba(0,90,194,.26);
  background:
    radial-gradient(circle at 25% 24%, rgba(0,90,194,.18), transparent 18%),
    radial-gradient(circle at 75% 60%, rgba(19,182,200,.18), transparent 22%),
    linear-gradient(135deg, #eef6ff 0%, #ffffff 100%);
}
.product-visual span {
  display: inline-flex;
  border-radius: 999px;
  padding: 10px 16px;
  font-weight: 700;
  color: var(--deep-2);
  background: rgba(255,255,255,.9);
  border: 1px solid var(--line);
}
.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: #fff;
  box-shadow: var(--shadow);
}
table { width: 100%; border-collapse: collapse; }
th, td {
  padding: 16px 20px;
  border-bottom: 1px solid var(--line);
  text-align: left;
}
th { width: 220px; color: var(--deep-2); }
.contact-form {
  display: grid;
  gap: 14px;
}
label {
  display: grid;
  gap: 8px;
  font-weight: 600;
}
input, select, textarea {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: 14px;
  font: inherit;
  color: var(--text);
  background: #fff;
}
input:focus, select:focus, textarea:focus {
  outline: 2px solid rgba(0,90,194,.14);
  border-color: rgba(0,90,194,.3);
}
.form-tip { font-size: 13px; }
.cta-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  background: linear-gradient(135deg, #0b59bd, #10a7bf);
  color: #fff;
  border-radius: 28px;
  padding: 32px;
  box-shadow: 0 18px 40px rgba(8, 55, 110, 0.22);
}
.cta-banner p,
.cta-banner h2 { color: #fff; }
.site-footer {
  margin-top: 40px;
  background: #081426;
  color: rgba(255,255,255,.8);
}
.footer-top {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 28px;
  padding: 42px 0 26px;
}
.footer-brand {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}
.footer-brand img { width: 56px; height: 56px; }
.footer-brand h3 { margin: 0 0 10px; color: #fff; }
.footer-brand p { color: rgba(255,255,255,.74); }
.footer-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0,1fr));
  gap: 20px;
}
.footer-grid h4 { margin: 0 0 10px; color: #fff; }
.footer-grid a,
.footer-grid p {
  display: block;
  margin: 0 0 8px;
  color: rgba(255,255,255,.74);
}
.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  padding: 16px 0 22px;
  border-top: 1px solid rgba(255,255,255,.1);
  font-size: 14px;
}
.center-text { text-align: center; }
@media (max-width: 1120px) {
  .hero-grid,
  .split-layout,
  .band-grid,
  .footer-top,
  .grid-4,
  .metrics-grid,
  .band-cards { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr 1fr; }
  .process-steps { grid-template-columns: repeat(3, minmax(0,1fr)); }
}
@media (max-width: 820px) {
  .menu-toggle { display: inline-flex; align-items: center; justify-content: center; }
  .site-nav {
    position: absolute;
    top: calc(100% + 8px);
    left: 16px;
    right: 16px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 10px;
    background: rgba(255,255,255,.98);
    border: 1px solid var(--line);
    border-radius: 18px;
    box-shadow: var(--shadow);
  }
  .site-nav.open { display: flex; }
  .site-nav a { padding: 12px 10px; border-radius: 12px; }
  .site-nav a:hover::after,
  .site-nav a.active::after { display: none; }
  .nav-cta { display: none; }
  .hero-home,
  .page-hero,
  .section { padding-top: 54px; }
  .hero-grid,
  .split-layout,
  .band-grid,
  .footer-top,
  .grid-2,
  .grid-3,
  .grid-4,
  .metrics-grid,
  .band-cards,
  .footer-grid,
  .process-steps,
  .cap-grid,
  .solution-showcase .showcase-grid { grid-template-columns: 1fr; }
  .cta-banner,
  .header-inner { flex-direction: column; align-items: stretch; }
  .topbar-inner { display: grid; grid-template-columns: 1fr; }
  .hero-copy h1 { font-size: 36px; }
}