:root {
  color-scheme: light;
  --bg: #f7f7fb;
  --surface: #ffffff;
  --surface-soft: #f8fafc;
  --border: #dbe3ef;
  --text: #0f172a;
  --muted: #475569;
  --subtle: #64748b;
  --indigo: #4f46e5;
  --indigo-soft: #eef2ff;
  --sky-soft: #f0f9ff;
  --green-soft: #ecfdf5;
  --rose-soft: #fff1f2;
  --shadow: 0 24px 70px rgba(51, 65, 85, 0.12);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-width: 320px;
  background:
    radial-gradient(circle at 16% 8%, rgba(99, 102, 241, 0.1), transparent 28rem),
    linear-gradient(180deg, #fbfbff 0%, var(--bg) 100%);
  color: var(--text);
  font-family: Inter, -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
  line-height: 1.65;
}

a {
  color: inherit;
}

.page {
  min-height: 100vh;
}

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

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 28px 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand img {
  width: 42px;
  height: 42px;
}

.brand strong {
  display: block;
  font-size: 18px;
  line-height: 1.1;
}

.brand span {
  display: block;
  color: var(--subtle);
  font-size: 12px;
}

.nav {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.topbar-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 12px;
  flex-wrap: wrap;
}

.topbar-actions .nav {
  justify-content: flex-end;
}

.language-switcher {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.72);
  padding: 4px;
}

.language-switcher a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 32px;
  border-radius: 8px;
  padding: 5px 9px;
  color: var(--subtle);
  font-size: 13px;
  font-weight: 750;
  line-height: 1.1;
  text-decoration: none;
}

.language-switcher a[aria-current="true"] {
  background: var(--indigo);
  color: white;
}

.nav a,
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.82);
  padding: 8px 14px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 650;
  text-decoration: none;
}

.button.primary {
  border-color: var(--indigo);
  background: var(--indigo);
  color: white;
  box-shadow: 0 14px 32px rgba(79, 70, 229, 0.24);
}

.hero {
  display: grid;
  grid-template-columns: 1.02fr 0.98fr;
  gap: 56px;
  align-items: center;
  padding: 70px 0 74px;
}

.eyebrow {
  display: inline-flex;
  width: fit-content;
  border: 1px solid #c7d2fe;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.86);
  padding: 7px 13px;
  color: #4338ca;
  font-size: 14px;
  font-weight: 750;
}

h1 {
  margin: 22px 0 0;
  max-width: 680px;
  font-size: clamp(42px, 7vw, 76px);
  line-height: 1.05;
  letter-spacing: 0;
}

.accent {
  color: var(--indigo);
}

.lead {
  margin: 24px 0 0;
  max-width: 650px;
  color: var(--muted);
  font-size: 19px;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.panel {
  border: 1px solid var(--border);
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.92);
  box-shadow: var(--shadow);
}

.product-panel {
  padding: 24px;
}

.status-card {
  border: 1px solid #c7d2fe;
  border-radius: 18px;
  background: linear-gradient(135deg, #eef2ff 0%, #ffffff 100%);
  padding: 24px;
}

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

.status-card h2 {
  margin: 10px 0 0;
  font-size: 28px;
  line-height: 1.25;
}

.steps {
  display: grid;
  gap: 12px;
  margin-top: 18px;
}

.step {
  display: flex;
  align-items: center;
  gap: 12px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: white;
  padding: 14px 16px;
  color: var(--muted);
  font-weight: 650;
}

.step span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 9px;
  background: var(--indigo);
  color: white;
  font-size: 13px;
  font-weight: 800;
}

.section {
  padding: 46px 0;
}

.section h2,
.content h1 {
  margin: 0;
  font-size: 34px;
  line-height: 1.2;
}

.section-intro {
  max-width: 760px;
  margin: 12px 0 0;
  color: var(--muted);
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-top: 24px;
}

.card {
  border: 1px solid var(--border);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.9);
  padding: 22px;
}

.card h3 {
  margin: 0;
  font-size: 18px;
}

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

.card p {
  margin: 10px 0 0;
}

.policy-band {
  border: 1px solid #bbf7d0;
  border-radius: 20px;
  background: linear-gradient(135deg, var(--green-soft), #ffffff);
  padding: 26px;
}

.content {
  max-width: 900px;
  padding: 52px 0 80px;
}

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

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

.content code {
  border-radius: 6px;
  background: var(--indigo-soft);
  padding: 2px 6px;
  color: #3730a3;
}

.notice {
  border: 1px solid #fed7aa;
  border-radius: 16px;
  background: #fff7ed;
  padding: 18px 20px;
  color: #9a3412;
}

.footer {
  border-top: 1px solid var(--border);
  padding: 28px 0 42px;
  color: var(--subtle);
  font-size: 14px;
}

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

  .topbar-actions {
    justify-content: flex-start;
  }

  .topbar-actions .nav {
    justify-content: flex-start;
  }

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

  .hero {
    padding-top: 40px;
  }
}
