:root {
  --bg: #f3f8f5;
  --panel: rgba(255, 255, 255, 0.92);
  --panel-strong: #ffffff;
  --text: #193127;
  --muted: #5c7066;
  --brand: #00b96b;
  --brand-dark: #087d50;
  --line: rgba(25, 49, 39, 0.08);
  --shadow: 0 20px 56px rgba(17, 35, 27, 0.08);
  --accent: #eafff4;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(0, 185, 107, 0.16), transparent 34%),
    radial-gradient(circle at right center, rgba(14, 165, 233, 0.12), transparent 28%),
    linear-gradient(180deg, #f7fcf8 0%, var(--bg) 100%);
}

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

p,
li,
dd {
  line-height: 1.75;
}

.page-shell {
  max-width: 1120px;
  margin: 0 auto;
  padding: 24px 20px 72px;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  font-weight: 700;
}

.brand img {
  width: 52px;
  height: 52px;
  border-radius: 16px;
  box-shadow: 0 12px 28px rgba(0, 185, 107, 0.18);
}

.brand small {
  display: block;
  margin-top: 4px;
  color: var(--muted);
  font-weight: 500;
}

.top-nav {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.top-nav a {
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.76);
  border: 1px solid var(--line);
  color: var(--muted);
  transition: 0.2s ease;
}

.top-nav a:hover,
.top-nav a.current {
  color: var(--brand-dark);
  border-color: rgba(0, 185, 107, 0.24);
  background: rgba(234, 255, 244, 0.9);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(300px, 0.8fr);
  gap: 18px;
  align-items: stretch;
}

.hero-card,
.hero-aside,
.card,
.step,
.faq-item,
.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.hero-card,
.hero-aside,
.panel {
  border-radius: 32px;
  padding: clamp(24px, 4vw, 40px);
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border-radius: 999px;
  background: rgba(0, 185, 107, 0.1);
  color: var(--brand-dark);
  padding: 8px 14px;
  font-weight: 600;
  font-size: 14px;
}

.hero h1 {
  margin: 16px 0 14px;
  font-size: clamp(34px, 6vw, 54px);
  line-height: 1.12;
}

.lead {
  margin: 0;
  max-width: 720px;
  color: var(--muted);
  font-size: 18px;
}

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

.btn-primary,
.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 20px;
  border-radius: 999px;
  font-weight: 700;
}

.btn-primary {
  background: linear-gradient(135deg, var(--brand) 0%, #1dd18b 100%);
  color: #ffffff;
}

.btn-secondary {
  background: #ffffff;
  color: var(--brand-dark);
  border: 1px solid rgba(0, 185, 107, 0.18);
}

.hero-aside h2 {
  margin: 0 0 16px;
  font-size: 22px;
}

.hero-aside p {
  margin: 0 0 18px;
  color: var(--muted);
}

.kpis {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.kpi {
  padding: 16px;
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.84);
  border: 1px solid rgba(25, 49, 39, 0.06);
}

.kpi strong {
  display: block;
  margin-bottom: 6px;
  font-size: 16px;
}

.kpi span {
  color: var(--muted);
  font-size: 14px;
}

.section {
  margin-top: 24px;
}

.section h2 {
  margin: 0 0 12px;
  font-size: clamp(26px, 4vw, 34px);
}

.section-intro {
  margin: 0 0 18px;
  color: var(--muted);
  max-width: 760px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.card,
.step,
.faq-item {
  border-radius: 26px;
  padding: 24px;
}

.card h3,
.step h3,
.faq-item dt {
  margin: 0 0 10px;
  font-size: 20px;
}

.card p,
.step p,
.faq-item dd,
.panel p,
.panel li {
  margin: 0;
  color: var(--muted);
}

.steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.step-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: rgba(0, 185, 107, 0.12);
  color: var(--brand-dark);
  font-weight: 700;
  margin-bottom: 14px;
}

.faq {
  display: grid;
  gap: 14px;
}

.faq-item dd {
  margin-top: 10px;
}

.bullet-list {
  margin: 0;
  padding-left: 20px;
}

.footer {
  margin-top: 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  color: var(--muted);
}

.footer-links {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.footer-links a {
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid var(--line);
}

@media (max-width: 900px) {
  .hero,
  .grid,
  .steps,
  .kpis {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .page-shell {
    padding: 18px 14px 48px;
  }

  .hero-card,
  .hero-aside,
  .panel,
  .card,
  .step,
  .faq-item {
    border-radius: 24px;
    padding: 20px;
  }

  .lead {
    font-size: 16px;
  }

  .actions,
  .top-nav,
  .footer-links {
    width: 100%;
  }

  .btn-primary,
  .btn-secondary,
  .top-nav a,
  .footer-links a {
    flex: 1 1 100%;
  }
}