/* 智慧联动：浅色内容技术站，保留版位示意和平台素材。 */
:root {
  --bg: #f4f7fb;
  --card: #ffffff;
  --ink: #172033;
  --muted: #5d6b82;
  --line: rgba(23, 32, 51, 0.1);
  --cyan: #0aa2c0;
  --blue: #2f6bff;
  --header: 64px;
  --sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --mono: "SF Mono", "Menlo", "Consolas", monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(900px 420px at 90% -10%, rgba(47, 107, 255, 0.14), transparent 60%),
    radial-gradient(700px 380px at -10% 8%, rgba(10, 162, 192, 0.12), transparent 55%),
    var(--bg);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.7;
}
a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  height: var(--header);
  padding: 0 28px;
  background: rgba(255, 255, 255, 0.88);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(16px);
}
.brand { display: inline-flex; align-items: center; gap: 10px; flex-shrink: 0; }
.brand-mark { width: 32px; height: 32px; }
.brand-name { font-size: 16px; font-weight: 650; letter-spacing: 0.14em; }
.nav { display: flex; align-items: center; gap: 4px; margin-left: 28px; }
.nav a { position: relative; padding: 8px 14px; color: var(--muted); font-size: 14px; }
.nav a:hover, .nav a[aria-current="page"] { color: var(--ink); }
.nav a[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: 14px; right: 14px; bottom: 0;
  height: 2px; border-radius: 2px;
  background: linear-gradient(90deg, var(--cyan), var(--blue));
}

.wrap { width: min(1120px, calc(100% - 40px)); margin: 0 auto; }

.hero { padding: 64px 0 28px; }
.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 36px;
  align-items: center;
}
.kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 16px;
  padding: 4px 10px 4px 8px;
  border: 1px solid rgba(47, 107, 255, 0.18);
  border-radius: 999px;
  color: var(--blue);
  background: #fff;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.12em;
}
.kicker i {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 8px var(--cyan);
}
.hero h1 {
  margin: 0;
  font-size: 52px;
  font-weight: 700;
  line-height: 1.12;
  letter-spacing: -0.03em;
}
.hero h1 em {
  font-style: normal;
  background: linear-gradient(90deg, #123a8a, var(--blue) 55%, var(--cyan));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.lead { max-width: 540px; margin: 16px 0 0; color: var(--muted); font-size: 16px; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 26px; }
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 44px; padding: 0 18px; border-radius: 8px;
  border: 1px solid transparent; font-size: 14px; font-weight: 600;
}
.btn-solid { color: #fff; background: linear-gradient(90deg, #1aa7c4, #3d74ff); box-shadow: 0 8px 20px rgba(47, 107, 255, 0.22); }
.btn-solid:hover { filter: brightness(1.05); }
.btn-ghost { color: var(--ink); border-color: var(--line); background: #fff; }
.btn-ghost:hover { border-color: rgba(47, 107, 255, 0.4); }

.panel {
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: #fff;
  box-shadow: 0 16px 40px rgba(28, 52, 96, 0.08);
}
.panel svg { width: 100%; height: auto; }
.panel-caption {
  display: flex; justify-content: space-between; margin-top: 8px;
  color: var(--muted); font-family: var(--mono); font-size: 11px; letter-spacing: 0.08em;
}

.scope {
  margin: 18px auto 8px;
  padding: 26px 28px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: #fff;
}
.scope h2 { margin: 0 0 8px; font-size: 13px; letter-spacing: 0.2em; color: var(--blue); }
.scope p { margin: 0; font-size: 18px; line-height: 1.85; color: #243044; }

.section { padding: 56px 0; }
.section-head {
  display: flex; justify-content: space-between; align-items: flex-end;
  gap: 24px; margin-bottom: 20px;
}
.section h2 { margin: 0; font-size: 32px; letter-spacing: -0.03em; }
.section-head p { margin: 0; max-width: 380px; color: var(--muted); font-size: 14px; }

.cards, .scenes, .flow, .cases, .contact { display: grid; gap: 16px; }
.cards { grid-template-columns: repeat(3, 1fr); }
.card, .scene, .case, .contact-main, .contact-side {
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--card);
}
.card, .case { padding: 22px; }
.card:hover, .case:hover { border-color: rgba(47, 107, 255, 0.35); }
.card .ico, .case .idx, .scene span, .contact-side dt {
  font-family: var(--mono); color: var(--blue); letter-spacing: 0.08em;
}
.card .ico {
  width: 36px; height: 36px; display: grid; place-items: center;
  border-radius: 10px; font-size: 12px;
  background: rgba(47, 107, 255, 0.08); border: 1px solid rgba(47, 107, 255, 0.16);
}
.card h3, .scene h3, .case h2 { margin: 14px 0 8px; }
.card p, .scene p, .case p, .contact-main p { margin: 0; color: var(--muted); font-size: 14px; }

.scenes { grid-template-columns: 1.2fr 1fr; }
.scene { min-height: 160px; padding: 22px; background: linear-gradient(180deg, #fff, #f7faff); }
.scene.wide { grid-row: span 2; }
.scene h3 { font-size: 22px; }

.flow { grid-template-columns: repeat(4, 1fr); }
.flow article { padding: 16px; border-top: 2px solid var(--blue); background: #fff; }
.flow b { display: block; margin-bottom: 6px; }
.flow span { color: var(--muted); font-size: 13px; }

.formats {
  padding: 28px;
  border-radius: 20px;
  background: linear-gradient(180deg, #f8fbff, #eef3fb);
  border: 1px solid var(--line);
}
.formats h2 { margin: 0 0 22px; text-align: center; font-size: 28px; }
.format-grid {
  display: grid;
  grid-template-columns: 1fr 280px 1fr;
  gap: 16px;
  align-items: center;
}
.format-col { display: grid; gap: 12px; }
.format-card {
  display: flex; gap: 12px; align-items: flex-start;
  padding: 16px;
  border-radius: 12px;
  background: #fff;
  border: 1px solid var(--line);
}
.format-card b { display: block; margin-bottom: 4px; }
.format-card span { color: var(--muted); font-size: 13px; }
.dot {
  width: 28px; height: 28px; flex: none; border-radius: 8px;
  background: linear-gradient(135deg, #7ec8ff, #3d74ff);
}
.phone {
  width: 250px;
  margin: 0 auto;
  padding: 10px;
  border-radius: 36px;
  background: linear-gradient(180deg, #2c3444, #151922);
  box-shadow: 0 24px 50px rgba(23, 32, 51, 0.22);
}
.phone img {
  width: 100%;
  height: 500px;
  object-fit: cover;
  object-position: center;
  border-radius: 28px;
  background: #eef2f6;
}

.logo-board { padding-bottom: 64px; }
.logo-board h2 { margin: 0 0 18px; text-align: center; font-size: 26px; }
.logos {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 12px;
  margin: 0;
  padding: 0;
}
.logos li {
  list-style: none;
  height: 78px;
  display: grid;
  place-items: center;
  padding: 8px 12px;
  border-radius: 12px;
  background: #fff;
  border: 1px solid var(--line);
}
.logos img { width: 100%; height: 48px; object-fit: contain; }

.page-hero { padding: 52px 0 8px; }
.page-hero h1 { margin: 0; font-size: 40px; letter-spacing: -0.03em; }
.page-hero p { max-width: 560px; margin: 12px 0 0; color: var(--muted); }
.cases { grid-template-columns: 1fr 1fr; padding-bottom: 72px; }
.contact { grid-template-columns: 1.1fr 0.9fr; padding-bottom: 72px; }
.contact-main, .contact-side { padding: 28px; }
.contact-main h2 { margin: 0; font-size: 32px; }
.contact-side div { padding: 14px 0; border-bottom: 1px solid var(--line); }
.contact-side div:last-child { border-bottom: 0; }
.contact-side dd { margin: 6px 0 0; font-size: 18px; }
.contact-side a:hover { color: var(--blue); }

.site-footer {
  padding: 24px 0 32px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
}
.site-footer p { margin: 0 0 6px; }
.site-footer a:hover { color: var(--blue); }

@media (max-width: 980px) {
  .hero { padding-top: 36px; }
  .hero-grid, .cards, .scenes, .flow, .cases, .contact, .section-head, .format-grid, .logos {
    grid-template-columns: 1fr;
  }
  .logos { grid-template-columns: repeat(2, 1fr); }
  .scene.wide { grid-row: auto; }
  .hero h1 { font-size: 36px; }
  .section h2, .page-hero h1, .formats h2 { font-size: 26px; }
  .wrap { width: min(1120px, calc(100% - 32px)); }
  .site-header { padding: 0 16px; }
  .nav { margin-left: auto; }
  .nav a { padding: 8px; }
  .phone { width: min(250px, 70%); }
  .phone img { height: 460px; }
}