:root {
  --lavender: #c4b5e8;
  --lavender-deep: #9b87d4;
  --lavender-soft: #f0ebfa;
  --lavender-bg: #f7f4fc;
  --white: #ffffff;
  --text: #2d2640;
  --text-muted: #6b6280;
  --line: rgba(155, 135, 212, 0.18);
  --pink: #f472b6;
  --orange: #fb923c;
  --yellow: #facc15;
  --green: #4ade80;
  --blue: #60a5fa;
  --purple: #a78bfa;
  --shadow: 0 18px 50px rgba(109, 84, 168, 0.12);
  --radius: 20px;
  --radius-sm: 12px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  color: var(--text);
  background: var(--lavender-bg);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  line-height: 1.65;
}

a {
  color: var(--lavender-deep);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

img {
  max-width: 100%;
  display: block;
}

.container {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(14px);
  background: rgba(247, 244, 252, 0.88);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  gap: 20px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text);
  font-weight: 700;
  font-size: 1.15rem;
  text-decoration: none;
}

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

.brand img {
  width: 42px;
  height: 42px;
  border-radius: 11px;
  box-shadow: 0 6px 16px rgba(109, 84, 168, 0.18);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

.site-nav a {
  color: var(--text-muted);
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  transition: color 0.2s;
}

.site-nav a:hover {
  color: var(--lavender-deep);
  text-decoration: none;
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--white);
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 4px auto;
  background: var(--text);
  border-radius: 2px;
}

.hero {
  position: relative;
  overflow: hidden;
  padding: 72px 0 88px;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 15% 20%, rgba(244, 114, 182, 0.16), transparent 34%),
    radial-gradient(circle at 85% 10%, rgba(96, 165, 250, 0.14), transparent 30%),
    radial-gradient(circle at 70% 80%, rgba(250, 204, 21, 0.12), transparent 28%),
    linear-gradient(180deg, #ebe3fb 0%, var(--lavender-bg) 100%);
  pointer-events: none;
}

.hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 48px;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid var(--line);
  color: var(--lavender-deep);
  font-size: 0.88rem;
  font-weight: 700;
  margin-bottom: 18px;
}

.hero-badge span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--pink), var(--blue));
}

.hero h1 {
  margin: 0 0 18px;
  font-size: clamp(2.2rem, 4vw, 3.4rem);
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.hero h1 em {
  font-style: normal;
  background: linear-gradient(90deg, var(--pink), var(--orange), var(--blue), var(--purple));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-desc {
  margin: 0 0 28px;
  max-width: 560px;
  color: var(--text-muted);
  font-size: 1.08rem;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border-radius: 999px;
  font-size: 0.95rem;
  font-weight: 700;
  text-decoration: none;
  transition: transform 0.2s, box-shadow 0.2s;
}

.btn:hover {
  text-decoration: none;
  transform: translateY(-1px);
}

.btn-primary {
  color: var(--white);
  background: linear-gradient(135deg, var(--lavender-deep), #7c6bb8);
  box-shadow: 0 10px 24px rgba(124, 107, 184, 0.28);
}

.btn-secondary {
  color: var(--text);
  background: rgba(255, 255, 255, 0.85);
  border: 1px solid var(--line);
}

.hero-visual {
  display: flex;
  justify-content: center;
}

.phone-card {
  width: min(100%, 340px);
  padding: 28px 24px 32px;
  border-radius: 32px;
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid rgba(255, 255, 255, 0.9);
  box-shadow: var(--shadow);
  text-align: center;
}

.phone-card img {
  width: 120px;
  height: 120px;
  margin: 0 auto 18px;
  border-radius: 28px;
  box-shadow: 0 14px 30px rgba(109, 84, 168, 0.22);
}

.phone-card h3 {
  margin: 0 0 8px;
  font-size: 1.35rem;
}

.phone-card p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.95rem;
}

.bead-row {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 22px;
}

.bead {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  box-shadow: inset 0 -2px 0 rgba(0, 0, 0, 0.08);
}

.section {
  padding: 84px 0;
}

.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 48px;
}

.section-header h2 {
  margin: 0 0 12px;
  font-size: clamp(1.8rem, 3vw, 2.4rem);
}

.section-header p {
  margin: 0;
  color: var(--text-muted);
  font-size: 1.02rem;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.feature-card {
  padding: 28px 24px;
  border-radius: var(--radius);
  background: var(--white);
  border: 1px solid var(--line);
  box-shadow: 0 8px 24px rgba(109, 84, 168, 0.06);
  transition: transform 0.2s, box-shadow 0.2s;
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.feature-icon {
  width: 52px;
  height: 52px;
  display: grid;
  place-items: center;
  border-radius: 16px;
  font-size: 1.5rem;
  margin-bottom: 16px;
}

.feature-card h3 {
  margin: 0 0 10px;
  font-size: 1.12rem;
}

.feature-card p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.95rem;
}

.feature-card.wide {
  grid-column: span 1;
}

.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}

.step {
  position: relative;
  padding: 24px 20px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid var(--line);
}

.step-num {
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  margin-bottom: 14px;
  color: var(--white);
  font-weight: 800;
  background: linear-gradient(135deg, var(--lavender-deep), var(--purple));
}

.step h3 {
  margin: 0 0 8px;
  font-size: 1rem;
}

.step p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.92rem;
}

.about-panel {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 28px;
  align-items: stretch;
}

.about-card,
.contact-card {
  padding: 32px;
  border-radius: var(--radius);
  background: var(--white);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.about-card h2,
.contact-card h2 {
  margin: 0 0 16px;
  font-size: 1.6rem;
}

.about-card p {
  margin: 0 0 14px;
  color: var(--text-muted);
}

.info-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.info-list li {
  display: flex;
  gap: 12px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}

.info-list li:last-child {
  border-bottom: 0;
}

.info-label {
  min-width: 88px;
  color: var(--text-muted);
  font-size: 0.92rem;
}

.info-value {
  flex: 1;
  font-weight: 600;
}

.site-footer {
  padding: 36px 0 42px;
  border-top: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.55);
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
}

.footer-links a,
.footer-meta {
  color: var(--text-muted);
  font-size: 0.9rem;
}

.footer-meta a {
  color: var(--text-muted);
}

@media (max-width: 960px) {
  .hero-grid,
  .about-panel {
    grid-template-columns: 1fr;
  }

  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .steps {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 720px) {
  .site-nav {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    padding: 16px 20px 20px;
    background: rgba(247, 244, 252, 0.98);
    border-bottom: 1px solid var(--line);
  }

  .site-nav.open {
    display: flex;
  }

  .nav-toggle {
    display: block;
  }

  .features-grid,
  .steps {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 48px;
    padding-bottom: 56px;
  }

  .section {
    padding: 64px 0;
  }
}