:root {
  --ink: #07111f;
  --ink-2: #122033;
  --paper: #f4f7fb;
  --card: #ffffff;
  --line: #e6edf5;
  --text: #1c2836;
  --muted: #5c6b7a;
  --blue: #1677ff;
  --blue-2: #0b5ed7;
  --gold: #c8a15a;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--text);
  background: var(--paper);
  font-family: "Source Han Sans SC", "Noto Sans SC", "Microsoft YaHei", "PingFang SC", sans-serif;
  line-height: 1.7;
}
a { color: inherit; }
img { max-width: 100%; display: block; }
.wrap { width: min(1120px, calc(100% - 40px)); margin: 0 auto; }

.nav {
  position: sticky; top: 0; z-index: 20;
  background: rgba(7, 17, 31, 0.92);
  backdrop-filter: blur(12px);
  color: #fff;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; font-weight: 700; letter-spacing: 0.04em; }
.drop {
  width: 28px; height: 34px;
  background: radial-gradient(circle at 35% 30%, #8ec5ff, var(--blue) 42%, #0a3d91 78%);
  border-radius: 50% 50% 50% 50% / 42% 42% 58% 58%;
  transform: rotate(180deg);
  box-shadow: 0 6px 16px rgba(22,119,255,0.45);
}
.nav a.menu { color: rgba(255,255,255,0.78); text-decoration: none; margin-left: 22px; font-size: 14px; }
.nav a.menu:hover { color: #fff; }
.nav-cta {
  margin-left: 22px;
  background: var(--blue); color: #fff; text-decoration: none;
  padding: 8px 16px; border-radius: 999px; font-size: 14px; font-weight: 700;
}

.hero {
  background:
    radial-gradient(900px 420px at 80% -10%, rgba(22,119,255,0.35), transparent 60%),
    linear-gradient(180deg, var(--ink) 0%, #0d1b2e 100%);
  color: #fff;
  padding: 72px 0 56px;
}
.hero-grid { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 48px; align-items: center; }
.kicker { color: var(--gold); letter-spacing: 0.22em; font-size: 12px; margin: 0 0 14px; }
h1 { font-size: 52px; line-height: 1.15; margin: 0 0 16px; letter-spacing: 0.02em; }
.lede { font-size: 18px; color: rgba(255,255,255,0.78); margin: 0 0 28px; max-width: 34em; }
.actions { display: flex; gap: 14px; align-items: center; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--blue); color: #fff; text-decoration: none;
  padding: 14px 26px; border-radius: 999px; font-weight: 700; font-size: 16px;
  box-shadow: 0 10px 30px rgba(22,119,255,0.35);
}
.btn:hover { background: var(--blue-2); }
.ghost { color: rgba(255,255,255,0.8); text-decoration: none; font-size: 14px; }
.hero-shot {
  border-radius: 18px;
  overflow: hidden;
  box-shadow: 0 30px 80px rgba(0,0,0,0.35);
  border: 1px solid rgba(255,255,255,0.08);
}
.hero-shot img { width: 100%; height: auto; object-fit: contain; background: #f3f7fc; }
.counts { display: flex; gap: 28px; margin-top: 36px; }
.counts strong { display: block; font-size: 28px; font-variant-numeric: tabular-nums; }
.counts span { color: rgba(255,255,255,0.55); font-size: 13px; }

section { padding: 72px 0; }
h2 { font-size: 32px; margin: 0 0 10px; letter-spacing: 0.02em; }
.sub { color: var(--muted); margin: 0 0 32px; }

.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 22px 22px 18px;
}
.card h3 { margin: 0 0 8px; font-size: 18px; }
.card p { margin: 0; color: var(--muted); font-size: 14px; }
.num { color: var(--blue); font-weight: 700; font-size: 13px; letter-spacing: 0.08em; }

.gallery { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.gallery figure { margin: 0; background: #fff; border-radius: 16px; overflow: hidden; border: 1px solid var(--line); }
.gallery img { width: 100%; height: auto; object-fit: contain; background: #f3f7fc; }
.gallery figcaption { padding: 12px 14px 14px; font-size: 14px; color: var(--muted); }

.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.step { background: var(--ink); color: #fff; border-radius: 16px; padding: 20px; min-height: 160px; }
.step b { display: block; color: var(--gold); font-size: 13px; margin-bottom: 8px; }
.step p { margin: 0; color: rgba(255,255,255,0.78); font-size: 14px; }

.contact {
  background: #fff;
  border-top: 1px solid var(--line);
}
.contact-box {
  display: grid; grid-template-columns: 1.4fr 0.8fr; gap: 28px; align-items: center;
}
.qq {
  background: var(--ink); color: #fff; border-radius: 18px; padding: 28px;
}
.qq a { color: #fff; }

footer {
  background: var(--ink); color: rgba(255,255,255,0.62);
  padding: 28px 0; font-size: 13px;
}
footer a { color: #fff; }
.foot { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; }

@media (max-width: 860px) {
  h1 { font-size: 36px; }
  .hero-grid, .cards, .gallery, .steps, .contact-box { grid-template-columns: 1fr; }
  .nav a.menu { display: none; }
}