:root {
  --bg-1: #e8eaf6;
  --bg-2: #f3e5f5;
  --bg-3: #e3f2fd;
  --primary-1: #7c6fe0;
  --primary-2: #5a8dee;
  --text-1: #1a1a2e;
  --text-2: #61627a;
  --line: rgba(124, 111, 224, 0.18);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  position: relative;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--text-1);
  background: linear-gradient(135deg, var(--bg-1) 0%, var(--bg-2) 50%, var(--bg-3) 100%);
}

body::before,
body::after {
  content: '';
  position: fixed;
  inset: auto;
  pointer-events: none;
  border-radius: 50%;
  filter: blur(12px);
  opacity: 0.72;
  z-index: 0;
}

body::before {
  width: 280px;
  height: 280px;
  right: -70px;
  top: -60px;
  background: radial-gradient(circle, rgba(124, 111, 224, 0.24) 0%, rgba(124, 111, 224, 0.05) 56%, transparent 72%);
}

body::after {
  width: 320px;
  height: 320px;
  left: -120px;
  bottom: -120px;
  background: radial-gradient(circle, rgba(90, 141, 238, 0.2) 0%, rgba(90, 141, 238, 0.05) 56%, transparent 72%);
}

.page-shell {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  padding: 28px 18px 36px;
}

.container {
  width: min(920px, 100%);
  margin: 0 auto;
}

.brand-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-bottom: 14px;
}

.logo {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  box-shadow: 0 6px 16px rgba(90, 141, 238, 0.24);
}

.brand-title {
  margin: 0;
  font-size: 24px;
  font-weight: 700;
  letter-spacing: 0.5px;
}

.subtitle {
  margin: 0 0 20px;
  text-align: center;
  color: var(--text-2);
  font-size: 14px;
}

.card {
  background: rgba(255, 255, 255, 0.86);
  border: 1px solid rgba(255, 255, 255, 0.74);
  border-radius: 20px;
  padding: 28px 26px;
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  box-shadow:
    0 18px 50px rgba(100, 80, 160, 0.12),
    0 2px 6px rgba(0, 0, 0, 0.04);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 12px;
  padding: 6px 10px;
  border-radius: 999px;
  color: #5a64a7;
  background: linear-gradient(135deg, rgba(124, 111, 224, 0.1), rgba(90, 141, 238, 0.08));
  border: 1px solid rgba(124, 111, 224, 0.14);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.4px;
}

.hero {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 16px;
  align-items: stretch;
  margin-bottom: 16px;
}

.hero-panel,
.info-panel {
  border-radius: 18px;
  padding: 18px 18px 16px;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.92), rgba(247, 248, 253, 0.92));
  border: 1px solid rgba(216, 221, 240, 0.9);
}

.hero-panel h1 {
  margin-top: 0;
}

.lead {
  margin: 0;
  color: #2f3344;
  font-size: 15px;
  line-height: 1.85;
}

.metrics {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.metric {
  padding: 12px 12px 11px;
  border-radius: 14px;
  background: #fff;
  border: 1px solid #dfe5f6;
}

.metric strong {
  display: block;
  margin-bottom: 4px;
  font-size: 20px;
  color: #23315f;
}

.metric span {
  font-size: 12px;
  color: #68708a;
}

.section-card {
  margin-top: 16px;
  padding: 18px 18px 16px;
  border-radius: 18px;
  border: 1px solid #dde5f4;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.92), rgba(248, 250, 255, 0.88));
}

.section-title {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 12px;
  font-size: 18px;
}

.section-title::before {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary-1), var(--primary-2));
  box-shadow: 0 0 0 6px rgba(124, 111, 224, 0.08);
}

.content-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.mini-card {
  padding: 14px 14px 13px;
  border-radius: 14px;
  border: 1px solid #dfe4f2;
  background: #fff;
}

.mini-card h3 {
  margin: 0 0 6px;
  font-size: 15px;
}

.mini-card p {
  margin: 0;
  font-size: 13px;
  color: #5d657d;
}

.timeline {
  display: grid;
  gap: 12px;
}

.timeline-item {
  display: grid;
  grid-template-columns: 34px 1fr;
  gap: 12px;
  align-items: start;
}

.timeline-step {
  width: 34px;
  height: 34px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  font-weight: 800;
  color: #fff;
  background: linear-gradient(135deg, var(--primary-1), var(--primary-2));
  box-shadow: 0 8px 18px rgba(90, 141, 238, 0.24);
}

.timeline-content h3 {
  margin: 0 0 4px;
  font-size: 15px;
}

.timeline-content p {
  margin: 0;
  font-size: 13px;
  color: #5d657d;
}

.key-points {
  display: grid;
  gap: 10px;
}

.key-row {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  padding: 12px 13px;
  border-radius: 14px;
  background: #fff;
  border: 1px solid #dde4f2;
}

.key-bullet {
  width: 22px;
  height: 22px;
  border-radius: 7px;
  flex: 0 0 auto;
  background: linear-gradient(135deg, rgba(124, 111, 224, 0.18), rgba(90, 141, 238, 0.2));
}

.table-wrap {
  overflow-x: auto;
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  border-spacing: 0;
}

.comparison-table th,
.comparison-table td {
  padding: 11px 12px;
  text-align: left;
  border-bottom: 1px solid #e4e8f4;
  font-size: 14px;
}

.comparison-table th {
  font-size: 13px;
  color: #51607c;
  background: #f7f8fd;
}

.comparison-table tr:last-child td {
  border-bottom: 0;
}

.bullet-list {
  display: grid;
  gap: 10px;
}

.bullet-item {
  display: flex;
  gap: 10px;
  align-items: flex-start;
}

.bullet-item span:first-child {
  flex: 0 0 auto;
  min-width: 48px;
  padding: 3px 9px;
  margin-top: 1px;
  border-radius: 999px;
  text-align: center;
  font-size: 12px;
  font-weight: 700;
  color: #4f5e86;
  background: linear-gradient(135deg, rgba(124, 111, 224, 0.12), rgba(90, 141, 238, 0.1));
  border: 1px solid rgba(124, 111, 224, 0.16);
}

.bullet-item span:last-child {
  flex: 1;
  color: #2f3344;
}

.nav-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}

.nav-pills a {
  text-decoration: none;
  font-size: 13px;
  font-weight: 600;
  color: #4d5a78;
  border: 1px solid #d8ddf0;
  background: #f7f8fd;
  border-radius: 999px;
  padding: 7px 12px;
}

.nav-pills a.active {
  color: #fff;
  border-color: transparent;
  background: linear-gradient(135deg, var(--primary-1), var(--primary-2));
}

h1 {
  margin: 2px 0 14px;
  font-size: 26px;
}

h2 {
  margin: 18px 0 8px;
  font-size: 18px;
}

p,
li {
  line-height: 1.75;
  color: #2f3344;
  font-size: 15px;
}

ul {
  margin: 8px 0 8px;
  padding-left: 20px;
}

.tip {
  margin-top: 16px;
  padding: 12px 14px;
  border-radius: 10px;
  border: 1px solid #d9e8ff;
  border-left: 4px solid #4f86ff;
  background: linear-gradient(135deg, #f7fbff 0%, #f2f8ff 100%);
  color: #355070;
  font-size: 13px;
}

.footer-links {
  margin-top: 18px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.footer-links a {
  text-decoration: none;
  font-size: 13px;
  font-weight: 600;
  color: #6a5fd6;
}

.footer-links a:hover {
  color: #4e86ea;
}

@media (max-width: 640px) {
  .page-shell {
    padding: 18px 12px 24px;
  }

  .card {
    border-radius: 16px;
    padding: 20px 16px;
  }

  .brand-title {
    font-size: 20px;
  }

  h1 {
    font-size: 22px;
  }

  p,
  li {
    font-size: 14px;
  }

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

  .card,
  .hero-panel,
  .info-panel,
  .section-card {
    border-radius: 16px;
  }

  .timeline-item {
    grid-template-columns: 30px 1fr;
  }

  .timeline-step {
    width: 30px;
    height: 30px;
    border-radius: 10px;
  }
}