:root {
  --paper: #071018;
  --ink: #e8f4ff;
  --muted: #8eabc4;
  --line: rgba(120, 186, 230, .22);
  --brand: #3ee0ff;
  --accent: #8b9bff;
  --header: rgba(7, 16, 24, .82);
  --header-ink: #e8f4ff;
  --radius: 12px;
  --serif: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  --sans: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  color: var(--ink);
  font-family: var(--sans);
  line-height: 1.7;
  background:
    radial-gradient(900px 420px at 8% -10%, color-mix(in srgb, var(--brand) 22%, transparent), transparent 60%),
    radial-gradient(700px 380px at 100% 0%, color-mix(in srgb, var(--accent) 18%, transparent), transparent 55%),
    var(--paper);
}
a { color: inherit; }
img { max-width: 100%; display: block; }
.wrap { width: min(1160px, calc(100% - 40px)); margin: 0 auto; }
.topbar { display: flex; justify-content: space-between; gap: 16px; font-size: 13px; color: var(--muted); padding: 10px 0; }
.header {
  position: sticky; top: 0; z-index: 20;
  background: var(--header);
  color: var(--header-ink);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(16px);
}
.header .wrap { display: flex; align-items: center; justify-content: space-between; min-height: 74px; gap: 24px; }
.brand { font-size: 22px; letter-spacing: .16em; text-decoration: none; font-weight: 700; }
.nav { display: flex; gap: 22px; align-items: center; }
.nav a { text-decoration: none; font-size: 15px; color: var(--muted); }
.nav a:hover { color: var(--ink); }
.menu-toggle { display: none; background: transparent; border: 1px solid var(--line); color: inherit; border-radius: var(--radius); padding: 6px 10px; }
.hero { padding: 88px 0 56px; display: grid; grid-template-columns: 1.35fr .75fr; gap: 48px; align-items: end; }
.eyebrow { letter-spacing: .22em; font-size: 12px; color: var(--brand); }
h1, h2, h3 { font-weight: 700; line-height: 1.28; letter-spacing: 0; }
h1 { font-size: clamp(30px, 4vw, 48px); margin: 10px 0 16px; }
.lede { font-size: 18px; max-width: 38em; color: var(--muted); }
.actions { display: flex; gap: 12px; margin-top: 28px; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 44px; padding: 0 18px; text-decoration: none; cursor: pointer;
  border-radius: var(--radius); border: 1px solid transparent;
  background: linear-gradient(180deg, color-mix(in srgb, var(--brand) 80%, white), var(--brand));
  color: #041018; font-weight: 650;
}
.btn.alt { background: transparent; color: var(--ink); border-color: var(--line); }
.btn.brand { background: linear-gradient(180deg, color-mix(in srgb, var(--brand) 70%, white), var(--brand)); color: #041018; }
.mark {
  min-height: 260px; border: 1px solid var(--line); border-radius: 18px; overflow: hidden;
  background:
    linear-gradient(160deg, transparent 30%, color-mix(in srgb, var(--brand) 20%, transparent) 30% 48%, transparent 48%),
    radial-gradient(circle at 70% 30%, color-mix(in srgb, var(--accent) 30%, transparent), transparent 55%),
    color-mix(in srgb, var(--paper) 70%, black);
}
.mark img, .card img {
  display: block; width: 100%; height: 100%; min-height: 180px; object-fit: cover;
}
.banner-stage {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--paper) 92%, white);
}
.banner-track { position: relative; }
.banner-slide {
  display: none;
  position: relative;
  min-height: min(72vh, 680px);
}
.banner-slide.on { display: block; }
.banner-copy {
  position: relative; z-index: 2;
  width: min(520px, 46%);
  min-height: min(72vh, 680px);
  display: flex; align-items: center;
  padding: clamp(40px, 6vw, 72px) clamp(24px, 4vw, 48px);
  background: color-mix(in srgb, var(--paper) 96%, white);
  color: var(--ink);
}
.banner-copy-inner { width: 100%; max-width: 34em; }
.banner-copy .eyebrow { color: var(--brand); }
.banner-copy h1 {
  color: var(--ink);
  max-width: 10.5em;
  font-size: clamp(30px, 3.8vw, 46px);
  line-height: 1.28;
  letter-spacing: 0;
  word-break: break-word;
  overflow-wrap: anywhere;
}
.banner-copy .lede { color: var(--muted); margin: 0; }
.banner-copy .btn.alt {
  background: #fff;
  color: var(--ink);
  border-color: var(--line);
}
.banner-media {
  position: absolute;
  top: 0; right: 0; bottom: 0;
  left: min(520px, 46%);
  background: #111;
}
.banner-media img {
  width: 100%; height: 100%; object-fit: cover;
}
.banner-media::after {
  content: "";
  position: absolute; inset: 0 auto 0 0; width: 56px;
  background: linear-gradient(90deg, color-mix(in srgb, var(--paper) 96%, white), transparent);
  pointer-events: none;
}
.banner-dots {
  position: absolute;
  left: clamp(24px, 4vw, 48px);
  bottom: 28px;
  z-index: 3;
  display: flex; gap: 8px;
}
.banner-dots button {
  width: 28px; height: 3px; padding: 0; border: 0; border-radius: 2px;
  background: color-mix(in srgb, var(--ink) 18%, transparent); cursor: pointer;
}
.banner-dots button.on { background: var(--brand); }
.section { padding: 36px 0 8px; }
.section h2 { font-size: 32px; margin-bottom: 18px; }
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.card {
  text-decoration: none; display: block; padding: 16px;
  border: 1px solid var(--line); border-radius: 16px;
  background: color-mix(in srgb, var(--paper) 82%, white);
  transition: transform .2s ease, border-color .2s ease;
}
.card:hover { transform: translateY(-3px); border-color: color-mix(in srgb, var(--brand) 55%, var(--line)); }
.card strong { display: block; font-size: 20px; margin: 8px 0; }
.card span, .muted { color: var(--muted); }
.metrics {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 0;
  margin: 28px auto 8px;
  border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden;
  background: color-mix(in srgb, var(--paper) 88%, white);
}
.metrics div {
  padding: 22px;
  border-right: 1px solid var(--line);
  border-radius: 0;
  background: transparent;
}
.metrics div:last-child { border-right: 0; }
.metrics b { display: block; font-size: 32px; color: var(--brand); line-height: 1.15; margin-bottom: 6px; }
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; align-items: center; padding: 22px 0; }
.split.reverse { direction: rtl; }
.split.reverse > * { direction: ltr; }
.answer { border-left: 3px solid var(--accent); padding: 8px 0 8px 16px; font-size: 18px; }
.prose { font-size: 17px; }
.prose h2 { font-size: 28px; }
.faq details { border-bottom: 1px solid var(--line); padding: 12px 0; }
.band {
  margin-top: 48px; padding: 48px 0;
  background: linear-gradient(90deg, color-mix(in srgb, var(--brand) 16%, var(--paper)), color-mix(in srgb, var(--accent) 16%, var(--paper)));
  border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
}
.band .btn { background: var(--ink); color: var(--paper); }
form.stack { display: grid; gap: 12px; }
label { display: grid; gap: 6px; font-size: 14px; }
input, textarea, select {
  width: 100%; border: 1px solid var(--line); border-radius: var(--radius);
  background: color-mix(in srgb, var(--paper) 88%, white); color: var(--ink); padding: 10px 12px; font: inherit;
}
.hp { position: absolute; left: -9999px; }
.footer { padding: 42px 0; border-top: 1px solid var(--line); display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 20px; font-size: 14px; }
.crumbs { font-size: 13px; color: var(--muted); padding-top: 22px; }
.filters { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 18px; }
.filters a { text-decoration: none; color: var(--muted); border-bottom: 1px solid transparent; }
.filters a.on { color: var(--ink); border-color: var(--brand); }
.pager { display: flex; gap: 12px; padding: 20px 0 40px; }
.flash { background: color-mix(in srgb, var(--brand) 12%, var(--paper)); border: 1px solid var(--line); border-radius: var(--radius); padding: 12px 14px; margin: 16px 0; }
@media (max-width: 900px) {
  .hero, .cards, .split, .footer, .metrics { grid-template-columns: 1fr; }
  .metrics div { border-right: 0; border-bottom: 1px solid var(--line); }
  .metrics div:last-child { border-bottom: 0; }
  .menu-toggle { display: inline-flex; }
  .nav { display: none; position: absolute; left: 0; right: 0; top: 112px; background: var(--paper); flex-direction: column; align-items: flex-start; padding: 16px 20px 20px; border-bottom: 1px solid var(--line); }
  .nav.open { display: flex; }
  .banner-slide.on { display: flex; flex-direction: column-reverse; min-height: auto; }
  .banner-media {
    position: relative; left: auto; width: 100%; height: 42vh; min-height: 240px;
  }
  .banner-media::after {
    inset: auto 0 0 0; width: auto; height: 64px;
    background: linear-gradient(180deg, transparent, color-mix(in srgb, var(--paper) 96%, white));
  }
  .banner-copy {
    width: 100%; min-height: auto; padding: 28px 20px 48px;
  }
  .banner-dots { left: 20px; bottom: 16px; }
}