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

html {
  scroll-behavior: auto;
}

body {
  font-family: "Avenir Next", "PingFang SC", sans-serif;
  background: #E8EEF2;
  color: #2E3A46;
  line-height: 1.8;
  font-size: 16px;
}

img,
svg {
  display: block;
  max-width: 100%;
}

a {
  color: #5B7C99;
  text-decoration: none;
}

a:hover {
  color: #2E3A46;
}

.wrap {
  width: min(1000px, calc(100% - 32px));
  margin: 0 auto;
}

.topbar {
  background: rgba(255, 255, 255, 0.72);
  border-bottom: 1px solid #d5dee6;
}

.topbar-inner {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 16px 0 14px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  color: #2E3A46;
}

.brand svg {
  width: 26px;
  height: 26px;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.nav a {
  background: #ffffff;
  color: #2E3A46;
  border: 1px solid #c5d2dc;
  border-radius: 10px;
  padding: 6px 12px;
  font-size: 13px;
}

.nav a:hover {
  background: #dce6ee;
  color: #2E3A46;
}

.hero {
  padding: 40px 0 20px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.7fr 0.8fr;
  gap: 22px;
  align-items: start;
}

.hero h1 {
  font-size: 28px;
  line-height: 1.4;
  margin-bottom: 14px;
}

.hero p {
  margin-bottom: 12px;
  color: #3d4b58;
}

.cond-stack {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.cond {
  background: #5B7C99;
  color: #fff;
  border-radius: 18px;
  padding: 14px 16px;
  font-size: 14px;
}

.cond span {
  display: block;
  font-size: 12px;
  opacity: 0.85;
  margin-bottom: 4px;
}

.section {
  padding: 32px 0;
}

.section h2 {
  font-size: 22px;
  line-height: 1.45;
  margin-bottom: 14px;
  color: #2E3A46;
}

.section p {
  margin-bottom: 12px;
}

.scene-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 16px;
  align-items: start;
}

.scene-grid article:nth-child(even) {
  margin-top: 28px;
}

.scene-card {
  background: #fff;
  border-radius: 18px;
  padding: 20px;
  box-shadow: 0 8px 24px rgba(46, 58, 70, 0.06);
}

.scene-card svg {
  width: 32px;
  height: 32px;
  margin-bottom: 10px;
}

.scene-card h3 {
  font-size: 17px;
  margin-bottom: 8px;
  color: #5B7C99;
}

.steps {
  display: flex;
  align-items: stretch;
  gap: 0;
  margin-top: 18px;
}

.step {
  flex: 1;
  background: #fff;
  border-radius: 18px;
  padding: 18px;
}

.step h3 {
  font-size: 16px;
  margin-bottom: 8px;
}

.step-line {
  width: 28px;
  align-self: center;
  height: 2px;
  background: #8AA4B8;
  flex-shrink: 0;
}

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 16px;
}

.split article {
  background: #fff;
  border-radius: 18px;
  padding: 18px 20px;
}

.split h3 {
  font-size: 16px;
  color: #5B7C99;
  margin-bottom: 8px;
}

.faq-list {
  list-style: decimal;
  padding-left: 22px;
  margin-top: 12px;
}

.faq-list li {
  margin-bottom: 16px;
  padding-left: 6px;
}

.faq-list .q,
.faq-list h3 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 6px;
  color: #2E3A46;
}

.site-footer {
  background: #f7fafc;
  border-top: 1px solid #d5dee6;
  padding: 32px 0;
  margin-top: 12px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.site-footer p {
  font-size: 14px;
  color: #2E3A46;
  margin-bottom: 8px;
}

@media (max-width: 800px) {
  .hero-grid,
  .scene-grid,
  .split,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .scene-grid article:nth-child(even) {
    margin-top: 0;
  }

  .steps {
    flex-direction: column;
  }

  .step-line {
    width: 2px;
    height: 20px;
    margin: 0 auto;
  }

  .hero h1 {
    font-size: 22px;
  }
}