:root {
  --bg: #f6f2ee;
  --panel: rgba(255, 255, 255, 0.72);
  --panel-strong: rgba(255, 255, 255, 0.9);
  --line: rgba(35, 38, 44, 0.08);
  --text: #1d2025;
  --muted: #6f747d;
  --soft: #8e949b;
  --brand: #27d6a0;
  --brand-deep: #10b782;
  --shadow: 0 24px 80px rgba(23, 34, 38, 0.08);
  --radius-xl: 36px;
  --radius-lg: 24px;
  --radius-md: 18px;
  --radius-sm: 12px;
  --container: 1200px;
  --ease: 280ms ease;
  color-scheme: light;
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  background:
    radial-gradient(circle at top right, rgba(39, 214, 160, 0.12), transparent 26%),
    radial-gradient(circle at top left, rgba(255, 219, 184, 0.16), transparent 24%),
    linear-gradient(180deg, #fbf8f4 0%, #f5f1eb 100%);
  color: var(--text);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.25) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.25) 1px, transparent 1px);
  background-size: 120px 120px;
  opacity: 0.25;
  pointer-events: none;
  z-index: -1;
}

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

button,
input,
textarea,
select {
  font: inherit;
}

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

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 26px 0 10px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
}

.brand-logo {
  display: block;
  width: 34px;
  height: 34px;
  flex-shrink: 0;
}

.brand-copy {
  display: grid;
  gap: 2px;
}

.brand-copy strong {
  font-size: 1rem;
}

.brand-copy span {
  color: var(--muted);
  font-size: 0.8rem;
  letter-spacing: 0.04em;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 14px;
}

.site-nav a {
  color: var(--muted);
  transition: color var(--ease), transform var(--ease), background-color var(--ease);
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--text);
  transform: translateY(-1px);
}

.nav-button,
.primary-button,
.secondary-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 26px;
  border-radius: 999px;
  font-weight: 600;
}

.nav-button,
.secondary-button {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.7);
}

.primary-button {
  background: linear-gradient(135deg, var(--brand), var(--brand-deep));
  color: white;
  box-shadow: 0 18px 32px rgba(39, 214, 160, 0.28);
}

.section {
  padding: 36px 0;
}

.hero {
  display: block;
  min-height: auto;
  padding-top: 58px;
  padding-bottom: 26px;
}

.hero-copy {
  max-width: 920px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  padding: 8px 14px;
  border-radius: 999px;
  background: rgba(39, 214, 160, 0.12);
  color: #0c8f63;
  font-size: 0.9rem;
  font-weight: 600;
}

.hero h1,
.section-heading h2,
.cta-card h2 {
  margin: 18px 0 0;
  font-size: clamp(2rem, 3.9vw, 3.35rem);
  line-height: 1.12;
  letter-spacing: -0.04em;
}

.hero h1 {
  max-width: none;
  white-space: nowrap;
}

.hero-summary,
.section-heading p,
.cta-card p {
  margin: 16px 0 0;
  font-size: 0.98rem;
  line-height: 1.72;
  color: var(--muted);
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-top: 32px;
  flex-wrap: wrap;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 0 15px;
  border: 1px solid rgba(39, 214, 160, 0.18);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.72);
  color: #0c8f63;
  font-size: 0.9rem;
  font-weight: 600;
  box-shadow: 0 12px 24px rgba(18, 23, 27, 0.05);
}

.faq-item,
.info-card,
.feature-card,
.scenario-card,
.cta-card,
.stat-card {
  backdrop-filter: blur(14px);
}

.trust-band,
.why-grid,
.feature-grid,
.scenario-grid {
  display: grid;
  gap: 18px;
}

.trust-band {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin: 8px 0 10px;
}

.stat-card,
.info-card,
.feature-card,
.scenario-card,
.faq-item,
.cta-card {
  border: 1px solid rgba(255, 255, 255, 0.5);
  background: var(--panel);
  box-shadow: var(--shadow);
}

.stat-card {
  padding: 18px 20px;
  border-radius: var(--radius-lg);
}

.stat-card span,
.card-index {
  color: var(--soft);
  font-size: 0.8rem;
}

.stat-card strong {
  display: block;
  margin-top: 8px;
  font-size: 0.96rem;
}

.section-heading {
  max-width: 720px;
  margin-bottom: 22px;
}

.section-heading h2,
.cta-card h2 {
  font-size: clamp(1.55rem, 2.3vw, 2.25rem);
}

.why-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.info-card,
.feature-card,
.scenario-card {
  padding: 22px;
  border-radius: var(--radius-xl);
}

.info-card h3,
.feature-card h3,
.scenario-card h3 {
  margin: 12px 0 0;
  font-size: 1.05rem;
}

.info-card p,
.feature-card p,
.scenario-card p {
  margin: 10px 0 0;
  color: var(--muted);
  line-height: 1.68;
  font-size: 0.93rem;
}

.feature-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.feature-icon {
  display: inline-grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(39, 214, 160, 0.16), rgba(39, 214, 160, 0.28));
  color: #0d8d64;
  font-size: 0.92rem;
  font-weight: 700;
}

.scenario-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.faq-list {
  display: grid;
  gap: 16px;
}

.faq-item {
  padding: 0;
  border-radius: 22px;
  overflow: hidden;
}

.faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: 20px 24px;
  font-size: 0.97rem;
  font-weight: 600;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item p {
  margin: 0;
  padding: 0 24px 22px;
  color: var(--muted);
  line-height: 1.72;
  font-size: 0.93rem;
}

.cta-section {
  padding-bottom: 56px;
}

.cta-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  padding: 28px 30px;
  border-radius: 36px;
  background:
    linear-gradient(120deg, rgba(255, 255, 255, 0.92), rgba(243, 255, 250, 0.92)),
    var(--panel-strong);
}

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

.site-footer {
  padding: 0 0 34px;
  color: #afb3b8;
  font-size: 0.88rem;
  margin-top: 6px;
}

.footer-copy {
  display: grid;
  gap: 8px;
  max-width: 640px;
}

.footer-copy p {
  margin: 0;
}

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

.footer-links a {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 0 16px;
  border: 1px solid rgba(29, 32, 37, 0.08);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.72);
  color: var(--text);
  transition: transform var(--ease), background-color var(--ease), border-color var(--ease);
}

.footer-links a:hover,
.footer-links a:focus-visible {
  transform: translateY(-1px);
  background: rgba(255, 255, 255, 0.9);
  border-color: rgba(29, 32, 37, 0.14);
}

.footer-note {
  margin: 0;
  color: var(--muted);
}

.legal-body {
  min-height: 100vh;
}

.legal-shell {
  padding-bottom: 40px;
}

.legal-main {
  padding-top: 32px;
}

.legal-document {
  border: 1px solid rgba(255, 255, 255, 0.5);
  background: var(--panel);
  box-shadow: var(--shadow);
  backdrop-filter: blur(14px);
}

.legal-document {
  padding: 32px;
  border-radius: var(--radius-xl);
  max-width: 980px;
  margin: 0 auto;
}

.legal-intro {
  margin: 0;
  color: var(--muted);
  line-height: 1.8;
}

.legal-intro + .legal-intro {
  margin-top: 12px;
}

.legal-section {
  padding-top: 26px;
  border-top: 1px solid rgba(29, 32, 37, 0.08);
  margin-top: 26px;
}

.legal-section:first-of-type {
  margin-top: 30px;
}

.legal-section h2 {
  margin: 0;
  font-size: 1.36rem;
  letter-spacing: -0.02em;
}

.legal-section h3 {
  margin: 20px 0 0;
  font-size: 1rem;
}

.legal-section p {
  margin: 12px 0 0;
  color: var(--muted);
  line-height: 1.8;
}

.legal-list,
.legal-list ol {
  margin: 12px 0 0;
  padding-left: 1.45rem;
  color: var(--muted);
  line-height: 1.8;
}

.legal-list li + li,
.legal-list ol li + li {
  margin-top: 10px;
}

.legal-note {
  display: inline-flex;
  margin-top: 18px;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  background: rgba(39, 214, 160, 0.1);
  color: #0c8f63;
  font-size: 0.92rem;
}

.legal-inline-link {
  color: #0c8f63;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.fade-up {
  opacity: 0;
  transform: translateY(24px);
  animation: fadeUp 800ms cubic-bezier(0.2, 0.9, 0.2, 1) forwards;
}

.delay-1 {
  animation-delay: 120ms;
}

.delay-2 {
  animation-delay: 220ms;
}

@keyframes fadeUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 1080px) {
  .hero {
    padding-top: 34px;
  }

  .hero-copy {
    max-width: none;
  }

  .hero h1 {
    max-width: none;
    white-space: normal;
  }

  .trust-band,
  .feature-grid,
  .scenario-grid {
    grid-template-columns: 1fr;
  }

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

  .cta-card,
  .site-footer {
    flex-direction: column;
    align-items: flex-start;
  }

}

@media (max-width: 720px) {
  .page-shell {
    width: min(calc(100% - 24px), var(--container));
  }

  .site-header {
    align-items: flex-start;
    flex-direction: column;
    gap: 18px;
  }

  .site-nav {
    width: 100%;
    flex-wrap: wrap;
  }

  .hero h1 {
    font-size: clamp(1.9rem, 10vw, 2.8rem);
    max-width: none;
    white-space: normal;
  }

  .hero-actions,
  .cta-actions {
    width: 100%;
  }

  .primary-button,
  .secondary-button,
  .nav-button {
    width: 100%;
  }

  .cta-card {
    padding: 28px 22px;
  }

  .legal-document {
    padding: 24px 20px;
  }

  .footer-links a {
    width: 100%;
    justify-content: center;
  }
}