:root {
  color-scheme: light;
  --ink: #18201b;
  --muted: #667067;
  --line: #dfe6dc;
  --paper: #fbfaf6;
  --surface: #ffffff;
  --accent: #2e7a51;
  --accent-dark: #1e5d3b;
  --warm: #f2b36d;
  --soft: #eef5ec;
  --shadow: 0 16px 40px rgba(31, 48, 36, 0.1);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.7;
}

a {
  color: var(--accent-dark);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid rgba(223, 230, 220, 0.9);
  background: rgba(251, 250, 246, 0.92);
  backdrop-filter: blur(16px);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  max-width: 1120px;
  margin: 0 auto;
  padding: 16px 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font-weight: 700;
  letter-spacing: 0;
}

.brand-mark {
  display: grid;
  width: 32px;
  height: 32px;
  place-items: center;
  border-radius: 8px;
  color: #fff;
  background: var(--accent);
  font-size: 18px;
}

.nav-links {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 18px;
  font-size: 15px;
}

.hero {
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(circle at 80% 20%, rgba(242, 179, 109, 0.24), transparent 32%),
    linear-gradient(135deg, #fbfaf6 0%, #eef5ec 100%);
}

.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(300px, 0.9fr);
  gap: 48px;
  align-items: center;
  max-width: 1120px;
  min-height: calc(100vh - 65px);
  margin: 0 auto;
  padding: 72px 24px 56px;
}

.eyebrow {
  display: inline-flex;
  width: fit-content;
  align-items: center;
  gap: 8px;
  margin: 0 0 18px;
  padding: 6px 10px;
  border: 1px solid rgba(46, 122, 81, 0.18);
  border-radius: 999px;
  color: var(--accent-dark);
  background: rgba(255, 255, 255, 0.72);
  font-size: 14px;
  font-weight: 600;
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.18;
  letter-spacing: 0;
}

h1 {
  max-width: 720px;
  font-size: clamp(44px, 8vw, 92px);
  font-weight: 800;
}

.lead {
  max-width: 680px;
  margin: 22px 0 0;
  color: #3e4a42;
  font-size: clamp(18px, 2.3vw, 23px);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 12px 18px;
  border: 1px solid var(--accent);
  border-radius: 8px;
  font-weight: 700;
  text-decoration: none;
}

.button:hover {
  text-decoration: none;
}

.button-primary {
  color: #fff;
  background: var(--accent);
}

.button-primary:hover {
  background: var(--accent-dark);
}

.button-secondary {
  color: var(--accent-dark);
  background: rgba(255, 255, 255, 0.75);
}

.phone-preview {
  position: relative;
  max-width: 360px;
  margin: 0 auto;
  padding: 12px;
  border: 1px solid rgba(24, 32, 27, 0.08);
  border-radius: 36px;
  background: #19221c;
  box-shadow: var(--shadow);
}

.company-panel {
  padding: 18px;
  border: 1px solid rgba(24, 32, 27, 0.08);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.72);
  box-shadow: var(--shadow);
}

.signal-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.signal-card {
  min-height: 180px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.82);
}

.signal-card.strong {
  background: var(--soft);
}

.signal-card span {
  display: block;
  margin-bottom: 24px;
  color: var(--accent-dark);
  font-size: 13px;
  font-weight: 800;
}

.signal-card strong {
  display: block;
  margin-bottom: 8px;
  font-size: 22px;
  line-height: 1.2;
}

.signal-card p {
  margin: 0;
  color: var(--muted);
}

.phone-screen {
  min-height: 620px;
  padding: 26px 22px;
  border-radius: 28px;
  color: #f8fff9;
  background:
    radial-gradient(circle at 50% 8%, rgba(242, 179, 109, 0.24), transparent 24%),
    linear-gradient(180deg, #25342a 0%, #101713 100%);
}

.phone-status {
  display: flex;
  justify-content: space-between;
  color: rgba(248, 255, 249, 0.7);
  font-size: 13px;
}

.phone-card {
  margin-top: 42px;
  padding: 22px;
  border: 1px solid rgba(248, 255, 249, 0.12);
  border-radius: 8px;
  background: rgba(248, 255, 249, 0.08);
}

.phone-card strong {
  display: block;
  margin-bottom: 8px;
  font-size: 24px;
  line-height: 1.3;
}

.phone-card p {
  margin: 0;
  color: rgba(248, 255, 249, 0.76);
}

.rest-list {
  display: grid;
  gap: 12px;
  margin-top: 26px;
}

.rest-item {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 14px;
  border-radius: 8px;
  background: rgba(248, 255, 249, 0.08);
  color: rgba(248, 255, 249, 0.86);
}

.section {
  max-width: 1120px;
  margin: 0 auto;
  padding: 72px 24px;
}

.section-header {
  max-width: 720px;
  margin-bottom: 32px;
}

.section-header p {
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 17px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.card {
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: 0 8px 20px rgba(31, 48, 36, 0.05);
}

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

.card p {
  margin: 0;
  color: var(--muted);
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 36px;
  align-items: start;
}

.product-feature {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(240px, 0.55fr);
  gap: 30px;
  align-items: center;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: 0 8px 20px rgba(31, 48, 36, 0.05);
}

.product-feature h3 {
  margin-bottom: 12px;
  font-size: clamp(28px, 4vw, 44px);
}

.product-feature p {
  max-width: 680px;
  margin: 0;
  color: var(--muted);
}

.compact-actions {
  margin-top: 24px;
}

.mini-phone {
  display: grid;
  min-height: 250px;
  align-content: end;
  gap: 10px;
  padding: 24px;
  border-radius: 24px;
  color: #f8fff9;
  background:
    radial-gradient(circle at 55% 15%, rgba(242, 179, 109, 0.28), transparent 28%),
    linear-gradient(180deg, #25342a 0%, #101713 100%);
}

.mini-phone strong {
  color: rgba(248, 255, 249, 0.72);
  font-size: 14px;
}

.mini-phone span {
  font-size: 24px;
  font-weight: 800;
  line-height: 1.25;
}

.mini-phone p {
  color: rgba(248, 255, 249, 0.76);
}

.facts {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.facts li {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}

.facts span {
  color: var(--muted);
}

.page-main {
  max-width: 900px;
  margin: 0 auto;
  padding: 58px 24px 80px;
}

.page-title {
  margin-bottom: 28px;
}

.page-title p {
  margin: 12px 0 0;
  color: var(--muted);
}

.legal {
  padding: 34px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}

.legal h2 {
  margin-top: 34px;
  font-size: 24px;
}

.legal h2:first-child {
  margin-top: 0;
}

.legal h3 {
  margin-top: 24px;
  font-size: 18px;
}

.legal p,
.legal li {
  color: #3e4a42;
}

.legal ul,
.legal ol {
  padding-left: 1.4em;
}

.notice {
  margin: 24px 0;
  padding: 16px 18px;
  border: 1px solid rgba(46, 122, 81, 0.18);
  border-radius: 8px;
  background: var(--soft);
}

.site-footer {
  border-top: 1px solid var(--line);
  background: #fff;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  max-width: 1120px;
  margin: 0 auto;
  padding: 28px 24px;
  color: var(--muted);
  font-size: 14px;
}

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

@media (max-width: 860px) {
  .nav {
    align-items: flex-start;
    flex-direction: column;
  }

  .nav-links {
    justify-content: flex-start;
  }

  .hero-inner,
  .split,
  .product-feature {
    grid-template-columns: 1fr;
  }

  .hero-inner {
    min-height: auto;
    padding-top: 46px;
  }

  .grid {
    grid-template-columns: 1fr;
  }

  .phone-preview {
    width: min(100%, 340px);
  }

  .phone-screen {
    min-height: 540px;
  }

  .footer-inner {
    flex-direction: column;
  }
}

@media (max-width: 520px) {
  .nav,
  .section,
  .page-main {
    padding-right: 18px;
    padding-left: 18px;
  }

  .nav-links {
    gap: 12px;
    font-size: 14px;
  }

  .hero-actions {
    flex-direction: column;
  }

  .button {
    width: 100%;
  }

  .legal {
    padding: 22px;
  }

  .signal-grid {
    grid-template-columns: 1fr;
  }

  .facts li {
    flex-direction: column;
    gap: 4px;
  }
}