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

body {
  font-family: Inter, PingFang SC, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.5;
  color: #181D27;
  background-color: #FFFFFF;
  font-weight: 300;
}

/* Header */
.header {
  background-color: #FFFFFF;
  padding: 80px 0;
}

ul {
  line-height: 28px;
  padding-left: 20px;
}

.header .content {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 32px;
}

.heading-container {
  text-align: center;
}

.main h1 {
  font-size: 48px;
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: -0.02em;
  color: #181D27;
}

.main h1,
.main h2 {
  color: #181D27;
}

h2 {
  margin-top: 48px;
  margin-bottom: 24px;
}

/* Main Content */
.main {
  padding-bottom: 80px;
  color: #535862;
}

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 32px;
}

.content {
  display: flex;
  justify-content: center;
}

.rich-text {
  max-width: 800px;
  width: 100%;
}

/* Sections */
.section {
  margin-bottom: 48px;
}

.section:last-child {
  margin-bottom: 0;
}

.date {
  font-size: 18px;
  line-height: 1.556;
  color: #9497A1;
  margin-bottom: 48px;
}

h2 {
  font-size: 30px;
  font-weight: 600;
  line-height: 1.267;
  color: #181D27;
}

p {
  font-size: 18px;
  line-height: 1.556;
  color: #535862;
  white-space: pre-line;
}

/* Responsive */
@media (max-width: 768px) {
  .header {
    padding: 48px 0;
  }

  h1 {
    font-size: 36px;
  }

  .container {
    padding: 0 24px;
  }

  h2 {
    font-size: 24px;
  }

  p {
    font-size: 16px;
  }
}

@media (max-width: 480px) {
  .header {
    padding: 32px 0;
  }

  h1 {
    font-size: 28px;
  }

  .container {
    padding: 0 16px;
  }

  h2 {
    font-size: 20px;
  }

  .section {
    margin-bottom: 32px;
  }
}