:root {
  --blue: #1565c0;
  --blue-bright: #1e88e5;
  --blue-dark: #0d47a1;
  --ink: #1a2332;
  --muted: #5a6a7a;
  --line: #e4ebf3;
  --bg: #f4f7fb;
  --white: #fff;
  --radius: 16px;
  --shadow: 0 12px 40px rgba(21, 101, 192, 0.08);
  --max: 1120px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  color: var(--ink);
  background: var(--white);
  line-height: 1.7;
}
img { max-width: 100%; display: block; }
a { color: var(--blue); text-decoration: none; }
a:hover { color: var(--blue-dark); }

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

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.nav {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font-weight: 700;
  font-size: 18px;
}
.brand img {
  width: 40px;
  height: 40px;
  border-radius: 10px;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
}
.nav-links a {
  color: var(--muted);
  font-size: 15px;
  padding: 8px 12px;
  border-radius: 8px;
}
.nav-links a:hover,
.nav-links a.active {
  color: var(--blue);
  background: #eef5ff;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 20px;
  border-radius: 10px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  font-size: 15px;
}
.btn-primary {
  background: var(--blue-bright);
  color: #fff;
}
.btn-primary:hover { background: var(--blue); color: #fff; }
.btn-ghost {
  background: #fff;
  color: var(--blue);
  border: 1px solid #cfe3fb;
}
.menu-btn {
  display: none;
  width: 40px;
  height: 40px;
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 8px;
  font-size: 20px;
  cursor: pointer;
}

/* Hero */
.hero {
  background:
    radial-gradient(1200px 400px at 80% -10%, #d6ebff 0%, transparent 60%),
    linear-gradient(180deg, #f7fbff 0%, #fff 100%);
  padding: 72px 0 40px;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 48px;
  align-items: center;
}
.kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: #e8f3ff;
  color: var(--blue);
  border-radius: 999px;
  padding: 6px 12px;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 16px;
}
.hero h1 {
  font-size: 42px;
  line-height: 1.25;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}
.hero h1 span { color: var(--blue-bright); }
.lead {
  font-size: 17px;
  color: var(--muted);
  max-width: 540px;
  margin-bottom: 28px;
}
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 28px; }
.meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  color: var(--muted);
  font-size: 13px;
}
.meta-row strong { color: var(--ink); display: block; }
.phone-stage {
  position: relative;
  display: flex;
  justify-content: center;
}
.phone {
  width: 280px;
  background: #0f1724;
  border-radius: 32px;
  padding: 12px;
  box-shadow: 0 30px 70px rgba(13, 71, 161, .22);
}
.phone img { border-radius: 22px; }
.badge-float {
  position: absolute;
  background: #fff;
  border-radius: 12px;
  padding: 10px 14px;
  box-shadow: var(--shadow);
  font-size: 13px;
  font-weight: 600;
}
.badge-float b { color: var(--blue); display: block; font-size: 16px; }
.b1 { left: 8px; top: 72px; }
.b2 { right: 0; bottom: 90px; }

/* Sections */
section { padding: 72px 0; }
.section-muted { background: var(--bg); }
.section-title {
  text-align: center;
  margin-bottom: 40px;
}
.section-title h2 { font-size: 30px; margin-bottom: 8px; }
.section-title p { color: var(--muted); }

.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
}
.icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: #e8f3ff;
  color: var(--blue);
  display: grid;
  place-items: center;
  font-size: 20px;
  margin-bottom: 14px;
}
.card h3 { font-size: 18px; margin-bottom: 8px; }
.card p { color: var(--muted); font-size: 14px; }

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}
.split.reverse { direction: rtl; }
.split.reverse > * { direction: ltr; }
.shot-frame {
  background: linear-gradient(180deg, #dbebff, #f6f9ff);
  border-radius: 24px;
  padding: 28px 28px 0;
  overflow: hidden;
  border: 1px solid #d7e7fa;
}
.shot-frame img {
  width: 260px;
  margin: 0 auto;
  border-radius: 18px 18px 0 0;
  box-shadow: 0 16px 40px rgba(21,101,192,.15);
}
.list { list-style: none; margin-top: 16px; }
.list li {
  padding: 8px 0 8px 28px;
  position: relative;
  color: var(--muted);
}
.list li::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--blue-bright);
  position: absolute;
  left: 6px;
  top: 16px;
}

.table-wrap { overflow-x: auto; }
table {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
  border-radius: 12px;
  overflow: hidden;
}
th, td {
  text-align: left;
  padding: 14px 16px;
  border-bottom: 1px solid var(--line);
  font-size: 14px;
}
th { background: #eef5ff; color: var(--blue-dark); font-weight: 600; }
.price-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.price {
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 28px 24px;
  background: #fff;
}
.price.featured {
  border-color: var(--blue-bright);
  box-shadow: var(--shadow);
}
.price h3 { margin-bottom: 6px; }
.price .who { color: var(--blue); font-size: 13px; font-weight: 600; margin-bottom: 10px; }
.price .note { color: var(--muted); font-size: 14px; margin: 12px 0 18px; }
.tag {
  display: inline-block;
  background: #fff4e5;
  color: #b26a00;
  font-size: 12px;
  padding: 2px 8px;
  border-radius: 999px;
  margin-left: 6px;
}

.info-grid {
  display: grid;
  grid-template-columns: 1.2fr .8fr;
  gap: 24px;
}
.contact-box {
  background: linear-gradient(180deg, #1565c0, #1e88e5);
  color: #fff;
  border-radius: 18px;
  padding: 28px;
}
.contact-box a { color: #fff; }
.contact-box p { opacity: .92; margin: 8px 0; }

.notice {
  background: #fff8e8;
  border: 1px solid #ffe0a3;
  border-radius: 12px;
  padding: 16px 18px;
  color: #7a5200;
  font-size: 14px;
  margin: 16px 0 24px;
}

.page-hero {
  background: linear-gradient(180deg, #f3f8ff, #fff);
  padding: 48px 0 12px;
}
.page-hero h1 { font-size: 34px; margin-bottom: 8px; }
.page-hero p { color: var(--muted); max-width: 720px; }
.crumbs { color: var(--muted); font-size: 13px; margin-bottom: 12px; }
.crumbs a { color: var(--muted); }

.qual {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.qual-item {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 18px;
  text-align: center;
}
.qual-item strong { display: block; font-size: 14px; margin-bottom: 4px; }
.qual-item span { color: var(--muted); font-size: 12px; }

footer {
  background: #0f1724;
  color: #c5d0dc;
  padding: 40px 0 20px;
  font-size: 14px;
}
.foot-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 24px;
  margin-bottom: 24px;
}
footer h4 { color: #fff; margin-bottom: 12px; }
footer a { color: #c5d0dc; }
footer a:hover { color: #fff; }
footer ul { list-style: none; }
footer li { margin: 6px 0; }
.beian {
  border-top: 1px solid #243044;
  padding-top: 16px;
  text-align: center;
  font-size: 13px;
  color: #9aabbc;
}
.beian a { color: #9aabbc; }

@media (max-width: 900px) {
  .menu-btn { display: grid; place-items: center; }
  .nav-links {
    display: none;
    position: absolute;
    left: 0; right: 0; top: 68px;
    background: #fff;
    flex-direction: column;
    align-items: stretch;
    padding: 12px;
    border-bottom: 1px solid var(--line);
  }
  .nav-links.open { display: flex; }
  .hero-grid, .cards, .split, .split.reverse, .price-cards, .info-grid, .qual, .foot-grid {
    grid-template-columns: 1fr;
    direction: ltr;
  }
  .hero { padding-top: 36px; }
  .hero h1 { font-size: 30px; }
  .phone { width: 230px; }
  .b1, .b2 { display: none; }
  section { padding: 48px 0; }
}