body {
  font-family: 'Montserrat', Arial, sans-serif;
  margin: 0;
  background: #fff;
  color: #111;
}

.header {
  display: flex;
  align-items: center;
  padding: 32px 48px 0 48px;
  gap: 16px;
}
.logo {
  width: 48px;
  height: 48px;
}
.brand {
  font-size: 1.5rem;
  font-weight: 700;
}

main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.intro {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin: 64px 0 80px 0;
}
.intro-text {
  flex: 1;
  font-size: 1.4rem;
  line-height: 1.5;
  max-width: 600px;
}
.intro-text a {
  color: #1565c0;
  text-decoration: underline;
}
.intro-year {
  flex: 1;
  display: flex;
  justify-content: flex-end;
}
.year-img {
  max-width: 320px;
  width: 100%;
  height: auto;
}

.about {
  text-align: center;
  margin-bottom: 64px;
}
.about h1 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 0.5em;
}
.about p {
  font-size: 1.2rem;
  margin-bottom: 1.5em;
}
.about h2 {
  font-size: 2rem;
  font-weight: 700;
  margin: 2em 0 0.5em 0;
}
.flowchart {
  margin: 32px auto 0 auto;
  display: flex;
  justify-content: center;
}
.flowchart img {
  max-width: 700px;
  width: 100%;
  height: auto;
}

.timeline {
  margin: 80px 0 64px 0;
}
.timeline h2 {
  text-align: center;
  font-size: 2.2rem;
  font-weight: 700;
  margin-bottom: 2em;
}
.timeline-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 48px;
}
.timeline-row:nth-child(even) {
  flex-direction: row-reverse;
}
.timeline-text {
  flex: 1;
  font-size: 1.2rem;
  line-height: 1.5;
  max-width: 500px;
  margin: 0 32px;
}
.timeline-year {
  flex: 1;
  display: flex;
  justify-content: center;
}

.goal {
  text-align: center;
  margin: 80px 0 64px 0;
}
.goal h2 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 0.5em;
}
.goal-buttons {
  display: flex;
  justify-content: center;
  gap: 24px;
  margin: 32px 0 32px 0;
}
.goal-buttons button {
  background: #1590e6;
  color: #fff;
  border: none;
  border-radius: 32px;
  padding: 16px 32px;
  font-size: 1.1rem;
  font-family: inherit;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s;
}
.goal-buttons button:hover {
  background: #1565c0;
}
.goal-illustration {
  margin: 32px 0 16px 0;
}
.goal-illustration img {
  max-width: 220px;
  width: 100%;
  height: auto;
}

.footer {
  text-align: center;
  padding: 32px 0 24px 0;
  font-size: 1.1rem;
  color: #111;
  background: #fff;
  margin-top: 48px;
}

.banner {
  width: 100vw;
  max-width: 100%;
  overflow: hidden;
  margin-bottom: 0;
}
.banner img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  display: block;
}
@media (max-width: 600px) {
  .banner img {
    height: 120px;
  }
}

@media (max-width: 900px) {
  .intro, .timeline-row {
    flex-direction: column;
    align-items: flex-start;
    text-align: left;
  }
  .intro-year, .timeline-year {
    justify-content: flex-start;
    margin-top: 24px;
  }
  .timeline-row {
    margin-bottom: 32px;
  }
}

@media (max-width: 600px) {
  .header {
    flex-direction: column;
    align-items: flex-start;
    padding: 24px 12px 0 12px;
  }
  main {
    padding: 0 8px;
  }
  .year-img, .flowchart img, .goal-illustration img {
    max-width: 100%;
  }
  .goal-buttons {
    flex-direction: column;
    gap: 12px;
  }
}