:root {
  --blue-100: #e7f1ff;
  --blue-500: #1a6dff;
  --blue-600: #1354c8;
  --text-primary: #0b1633;
  --text-secondary: #495266;
  --border: #dfe7f5;
  font-family: "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  background: linear-gradient(180deg, #f7f9ff 0%, #ffffff 70%);
  color: var(--text-primary);
}

.container {
  width: min(760px, 90%);
  background: #ffffff;
  border-radius: 32px;
  padding: 56px clamp(32px, 6vw, 64px);
  box-shadow: 0 25px 60px rgba(13, 40, 126, 0.08);
  text-align: center;
}

.hero {
  margin-bottom: 40px;
}

.badge {
  display: inline-block;
  padding: 6px 16px;
  border-radius: 999px;
  background: var(--blue-100);
  color: var(--blue-600);
  font-size: 14px;
  letter-spacing: 0.04em;
  margin-bottom: 16px;
}

h1 {
  font-size: clamp(32px, 5vw, 44px);
  margin-bottom: 18px;
  line-height: 1.25;
}

.subtitle {
  font-size: 17px;
  line-height: 1.8;
  color: var(--text-secondary);
}

.promise {
  padding: 28px;
  border: 1px solid var(--border);
  border-radius: 24px;
  background: #fbfdff;
  margin-bottom: 32px;
}

.promise h2 {
  font-size: 20px;
  margin-bottom: 10px;
  color: var(--blue-600);
  letter-spacing: 0.08em;
}

.promise p {
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-primary);
}

.trust-list {
  display: grid;
  gap: 14px;
  margin-bottom: 40px;
}

.trust-item {
  padding: 14px 18px;
  border-radius: 16px;
  background: #f5f8ff;
  color: var(--text-primary);
  font-size: 15px;
  border: 1px solid var(--border);
}

.cta-button {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  width: 100%;
  padding: 20px;
  border-radius: 999px;
  background: var(--blue-500);
  color: #ffffff;
  font-size: 18px;
  font-weight: 600;
  text-decoration: none;
  box-shadow: 0 12px 25px rgba(12, 65, 197, 0.25);
  transition: background 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

.cta-button:hover {
  background: var(--blue-600);
  transform: translateY(-2px);
  box-shadow: 0 16px 30px rgba(12, 65, 197, 0.25);
}

@media (max-width: 600px) {
  .container {
    padding: 44px 24px;
    border-radius: 24px;
  }

  .promise {
    padding: 22px;
  }

  .cta-button {
    font-size: 16px;
    padding: 18px;
  }
}