:root {
  --navy: #204a82;
  --blue: #3270c3;
  --sky: #5aa0e8;
  --red: #e31c24;
  --ink: #163056;
  --muted: #61748c;
  --line: #dbe6f4;
  --paper: #f4f7fb;
  --white: #ffffff;
  --shadow: 0 18px 50px rgba(32, 74, 130, 0.12);
  --radius: 22px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "PingFang SC", "Hiragino Sans GB", "Noto Sans SC", "Microsoft YaHei", sans-serif;
  line-height: 1.6;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; }

.wrap {
  width: min(1160px, calc(100% - 40px));
  margin: 0 auto;
}

.nav {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(32, 74, 130, 0.08);
}
.nav-inner {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  letter-spacing: 0.02em;
}
.brand img { width: 42px; height: 42px; object-fit: contain; }
.nav-links { display: flex; gap: 28px; color: var(--muted); font-size: 15px; }
.nav-links a:hover { color: var(--navy); }
.nav-cta {
  background: linear-gradient(90deg, var(--blue), var(--navy));
  color: #fff;
  padding: 10px 18px;
  border-radius: 999px;
  font-size: 14px;
}
.menu-btn {
  display: none;
  border: 0;
  background: none;
  font-size: 22px;
  color: var(--navy);
}

.hero {
  position: relative;
  overflow: hidden;
  padding: 72px 0 40px;
}
.hero::before {
  content: "AOXN";
  position: absolute;
  right: -4%;
  top: 8%;
  font-size: 220px;
  font-weight: 800;
  letter-spacing: -0.06em;
  color: rgba(32, 74, 130, 0.05);
  pointer-events: none;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 48px;
  align-items: center;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--blue);
  background: #eaf2fb;
  border: 1px solid #cfe0f4;
  border-radius: 999px;
  padding: 6px 12px;
  font-size: 13px;
  font-weight: 600;
}
.hero h1 {
  margin: 18px 0 14px;
  font-size: 52px;
  line-height: 1.15;
  letter-spacing: -0.03em;
}
.hero h1 span { color: var(--red); }
.lead { color: var(--muted); font-size: 18px; max-width: 34em; }
.tags { display: flex; flex-wrap: wrap; gap: 10px; margin: 22px 0 28px; }
.tag {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 8px 14px;
  font-size: 14px;
  color: var(--navy);
}
.actions { display: flex; gap: 12px; flex-wrap: wrap; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 20px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-size: 15px;
}
.btn-primary {
  background: linear-gradient(90deg, var(--blue), var(--navy));
  color: #fff;
}
.btn-ghost {
  background: #fff;
  border-color: var(--line);
  color: var(--navy);
}
.meta {
  display: flex;
  gap: 28px;
  margin-top: 28px;
  color: var(--muted);
  font-size: 14px;
}
.meta b { display: block; color: var(--ink); font-size: 20px; }

.phones {
  position: relative;
  height: 620px;
}
.phone {
  position: absolute;
  width: 270px;
  background: #111827;
  border-radius: 36px;
  padding: 12px;
  box-shadow: var(--shadow);
}
.phone img {
  width: 100%;
  height: 560px;
  object-fit: cover;
  object-position: top;
  border-radius: 26px;
  background: #fff;
}
.phone-main { right: 18px; top: 0; transform: rotate(3deg); }
.phone-back { left: 8px; top: 54px; transform: rotate(-8deg); opacity: 0.96; }

section { padding: 72px 0; scroll-margin-top: 84px; }
.section-kicker { color: var(--blue); font-weight: 700; font-size: 13px; letter-spacing: 0.12em; }
.section-title { margin: 8px 0 12px; font-size: 34px; letter-spacing: -0.03em; }
.section-desc { color: var(--muted); max-width: 40em; }

.service-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-top: 36px;
}
.card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
}
.card h3 { margin: 14px 0 8px; font-size: 20px; }
.card p { margin: 0; color: var(--muted); font-size: 15px; }
.icon {
  width: 44px;
  height: 44px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  background: linear-gradient(180deg, #eaf3fb, #d7e6f6);
  color: var(--navy);
}

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  margin-top: 36px;
}
.product {
  overflow: hidden;
  background: #fff;
  border-radius: 28px;
  border: 1px solid var(--line);
}
.product-head {
  padding: 28px 28px 18px;
  color: #fff;
}
.user-head { background: linear-gradient(135deg, #3270c3, #204a82); }
.worker-head { background: linear-gradient(135deg, #1d4f8a, #12345d); }
.product-head small { opacity: 0.8; }
.product-head h3 { margin: 6px 0 8px; font-size: 28px; }
.product ul {
  margin: 0;
  padding: 8px 28px 28px;
  color: var(--muted);
}
.product li { margin: 10px 0; }

.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 28px;
}
.step {
  background: #fff;
  border-radius: 20px;
  padding: 22px;
  border: 1px solid var(--line);
}
.num {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: var(--navy);
  color: #fff;
  font-weight: 700;
  margin-bottom: 14px;
}
.step h4 { margin: 0 0 8px; }
.step p { margin: 0; color: var(--muted); font-size: 14px; }

.shots {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  margin-top: 32px;
}
.shot {
  background: #111827;
  border-radius: 28px;
  padding: 10px;
}
.shot img {
  width: 100%;
  height: 460px;
  object-fit: cover;
  object-position: top;
  border-radius: 20px;
  background: #fff;
}
.shot figcaption {
  color: #d7e3f3;
  text-align: center;
  font-size: 13px;
  padding: 10px 0 4px;
}

.facts {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.fact {
  background: #fff;
  border-radius: 20px;
  padding: 22px;
  border: 1px solid var(--line);
}
.fact b { display: block; font-size: 22px; margin-bottom: 6px; }

.company {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 24px;
  align-items: start;
}
.contact-box {
  background: var(--navy);
  color: #fff;
  border-radius: 24px;
  padding: 28px;
}
.contact-box p { color: #d5e4f7; }
.contact-box a { color: #fff; border-bottom: 1px solid rgba(255,255,255,.35); }

.footer {
  border-top: 1px solid var(--line);
  padding: 28px 0 40px;
  color: var(--muted);
  font-size: 13px;
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.legal { max-width: 820px; padding: 48px 0 80px; }
.legal h1 { font-size: 32px; }
.legal h2 { margin-top: 28px; font-size: 20px; }
.legal p, .legal li { color: var(--muted); }

@media (max-width: 960px) {
  .hero-grid, .split, .company, .service-grid, .steps, .shots, .facts {
    grid-template-columns: 1fr 1fr;
  }
  .phones { height: 540px; }
  .phone { width: 230px; }
  .phone img { height: 470px; }
  .hero h1 { font-size: 40px; }
}
@media (max-width: 720px) {
  .nav-links, .nav-cta { display: none; }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    left: 0; right: 0; top: 72px;
    background: #fff;
    padding: 16px 20px 20px;
    border-bottom: 1px solid var(--line);
  }
  .menu-btn { display: block; }
  .hero { padding-top: 36px; }
  .hero h1 { font-size: 32px; }
  .meta { flex-direction: column; gap: 12px; }
  .hero-grid, .split, .company, .service-grid, .steps, .shots, .facts {
    grid-template-columns: 1fr;
  }
  .phones { height: 520px; margin: 10px auto 0; width: 280px; }
  .phone-main { right: 0; }
  .phone-back { display: none; }
  .shot img { height: 520px; }
  section { padding: 52px 0; }
}