:root {
  --bg: #f6f1e8;
  --ink: #1f2a33;
  --muted: #66717a;
  --paper: #fffaf0;
  --line: #eadfcf;
  --brand: #116466;
  --brand-dark: #083b3d;
  --gold: #f3b23f;
  --green: #5fb49c;
  --shadow: 0 18px 50px rgba(46, 36, 20, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 12% 8%, rgba(243, 178, 63, 0.22), transparent 28%),
    radial-gradient(circle at 88% 12%, rgba(95, 180, 156, 0.22), transparent 26%),
    linear-gradient(180deg, #fffaf0 0%, var(--bg) 52%, #efe7dc 100%);
  font-family: "Microsoft YaHei", "PingFang SC", "Noto Sans SC", Arial, sans-serif;
  line-height: 1.7;
}

a {
  color: inherit;
  text-decoration: none;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(16px);
  background: rgba(255, 250, 240, 0.82);
  border-bottom: 1px solid rgba(234, 223, 207, 0.9);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(1080px, calc(100% - 32px));
  margin: 0 auto;
  padding: 14px 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  letter-spacing: 0.03em;
}

.brand-mark {
  width: 38px;
  height: 38px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  color: #fff;
  background: linear-gradient(135deg, var(--brand), var(--green));
  box-shadow: 0 10px 22px rgba(17, 100, 102, 0.2);
}

.nav-links {
  display: flex;
  gap: 18px;
  color: var(--muted);
  font-size: 14px;
}

.nav-links a:hover {
  color: var(--brand-dark);
}

.wrap {
  width: min(1080px, calc(100% - 32px));
  margin: 0 auto;
}

.hero {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 42px;
  align-items: center;
  padding: 76px 0 46px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 12px;
  border-radius: 999px;
  color: var(--brand-dark);
  background: rgba(95, 180, 156, 0.16);
  font-weight: 700;
  font-size: 13px;
}

h1 {
  margin: 22px 0 18px;
  font-size: clamp(38px, 7vw, 68px);
  line-height: 1.06;
  letter-spacing: -0.05em;
}

.lead {
  margin: 0;
  max-width: 620px;
  color: var(--muted);
  font-size: 18px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 18px;
  border-radius: 14px;
  font-weight: 800;
  border: 1px solid transparent;
}

.btn.primary {
  color: #fff;
  background: var(--brand);
  box-shadow: 0 12px 24px rgba(17, 100, 102, 0.18);
}

.btn.secondary {
  color: var(--brand-dark);
  background: rgba(255, 255, 255, 0.62);
  border-color: var(--line);
}

.phone-card {
  position: relative;
  min-height: 520px;
  border-radius: 36px;
  background: linear-gradient(180deg, #132f3b, #0b1d27);
  box-shadow: var(--shadow);
  padding: 18px;
  overflow: hidden;
}

.phone-card::before {
  content: "";
  position: absolute;
  inset: 18px;
  border-radius: 28px;
  background:
    radial-gradient(circle at 35% 10%, rgba(243, 178, 63, 0.42), transparent 23%),
    linear-gradient(180deg, #4cc9b0, #5c6bc0 48%, #49337d);
}

.mock-screen {
  position: relative;
  z-index: 1;
  min-height: 484px;
  border-radius: 28px;
  padding: 24px;
  color: #fff;
}

.mock-top {
  display: flex;
  justify-content: space-between;
  gap: 10px;
}

.pill {
  flex: 1;
  padding: 8px 10px;
  border-radius: 14px;
  text-align: center;
  font-weight: 800;
  background: rgba(255, 255, 255, 0.18);
}

.mock-banner {
  margin: 38px auto 22px;
  width: 80%;
  padding: 12px;
  border-radius: 18px;
  text-align: center;
  color: #4a2a00;
  background: linear-gradient(180deg, #ffe071, #f3a536);
  box-shadow: 0 8px 0 rgba(82, 42, 0, 0.28);
  font-weight: 900;
}

.mock-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.mock-item {
  min-height: 104px;
  border-radius: 16px;
  background: rgba(255, 250, 240, 0.9);
  color: #49351d;
  padding: 12px;
  text-align: center;
  font-weight: 800;
}

.mock-icon {
  width: 42px;
  height: 42px;
  margin: 0 auto 8px;
  border-radius: 14px;
  background: linear-gradient(135deg, #ffd166, #ef476f);
}

.section {
  padding: 48px 0;
}

.section-title {
  margin: 0 0 18px;
  font-size: clamp(28px, 4vw, 42px);
  letter-spacing: -0.04em;
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.card {
  padding: 24px;
  border-radius: 24px;
  background: rgba(255, 250, 240, 0.82);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.card h3 {
  margin: 0 0 10px;
  font-size: 20px;
}

.card p,
.legal p,
.legal li {
  color: var(--muted);
}

.legal {
  padding: 56px 0;
}

.legal article {
  padding: 34px;
  border-radius: 26px;
  background: rgba(255, 250, 240, 0.86);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.legal h1 {
  font-size: clamp(32px, 5vw, 48px);
}

.legal h2 {
  margin-top: 28px;
}

.contact-box {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.site-footer {
  padding: 34px 0 42px;
  color: var(--muted);
  border-top: 1px solid var(--line);
}

.footer-row {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.footer-links {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

@media (max-width: 820px) {
  .nav {
    align-items: flex-start;
    gap: 14px;
    flex-direction: column;
  }

  .nav-links {
    width: 100%;
    overflow-x: auto;
    padding-bottom: 2px;
  }

  .hero,
  .grid,
  .contact-box {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 42px;
  }

  .phone-card {
    min-height: 430px;
  }

  .mock-screen {
    min-height: 390px;
  }
}

.footer-beian {
  text-align: center;
  padding-top: 8px;
  padding-bottom: 4px;
  font-size: 13px;
  color: var(--text-muted);
}

.footer-beian a {
  color: var(--text-muted);
  text-decoration: none;
}

.footer-beian a:hover {
  color: var(--primary);
}