* {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: #fff;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: #080b1d;
}

.bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(circle at 15% 10%, rgba(255, 134, 188, .28), transparent 28%),
    radial-gradient(circle at 80% 15%, rgba(88, 199, 255, .25), transparent 30%),
    radial-gradient(circle at 50% 95%, rgba(255, 199, 94, .18), transparent 35%),
    linear-gradient(180deg, #070a1d 0%, #111735 50%, #050714 100%);
}

.bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle, rgba(255,255,255,.85) 1px, transparent 1px),
    radial-gradient(circle, rgba(255,255,255,.35) 1px, transparent 1px);
  background-size: 90px 90px, 150px 150px;
  opacity: .45;
}

.hero {
  width: min(1050px, calc(100% - 32px));
  margin: 0 auto;
  padding: 86px 0 56px;
  text-align: center;
}

.eyebrow {
  margin: 0 0 18px;
  color: #b8dcff;
  letter-spacing: .24em;
  text-transform: uppercase;
  font-size: 13px;
}

h1 {
  margin: 0;
  font-size: clamp(48px, 10vw, 100px);
  text-shadow: 0 0 35px rgba(149, 212, 255, .45);
}

.lead {
  margin: 22px auto 0;
  max-width: 760px;
  color: rgba(255,255,255,.78);
  font-size: clamp(18px, 3vw, 25px);
  line-height: 1.7;
}

.timeline {
  width: min(1050px, calc(100% - 32px));
  margin: 0 auto 70px;
  position: relative;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 154px;
  top: 0;
  bottom: 0;
  width: 1px;
  background: linear-gradient(transparent, rgba(255,255,255,.4), transparent);
}

.trip {
  display: grid;
  grid-template-columns: 190px 1fr;
  gap: 32px;
  margin: 28px 0;
  align-items: start;
}

.date {
  position: sticky;
  top: 24px;
  color: #ffd2e6;
  font-weight: 650;
  padding-top: 28px;
  text-align: right;
}

.content {
  border: 1px solid rgba(255,255,255,.16);
  border-radius: 28px;
  padding: 30px;
  background: rgba(9, 15, 39, .62);
  backdrop-filter: blur(18px);
  box-shadow: 0 25px 70px rgba(0,0,0,.28);
}

.highlight .content {
  border-color: rgba(255, 207, 231, .36);
  box-shadow: 0 25px 80px rgba(255, 108, 178, .14);
}

h2 {
  margin: 0 0 12px;
  font-size: clamp(28px, 4vw, 42px);
}

.text {
  margin: 0 0 22px;
  color: rgba(255,255,255,.74);
  line-height: 1.75;
  font-size: 17px;
}

.photos {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.photo {
  min-height: 160px;
  border-radius: 20px;
  border: 1px dashed rgba(255,255,255,.35);
  background:
    linear-gradient(135deg, rgba(255,255,255,.08), rgba(255,255,255,.02));
  color: rgba(255,255,255,.55);
  display: grid;
  place-items: center;
  font-size: 15px;
}

/* 添加真实照片时，把 .photo 换成下面这种写法：
<img class="photo-img" src="images/tokyo-1.jpg" alt="东京旅行照片">
*/
.photo-img {
  width: 100%;
  height: 160px;
  object-fit: cover;
  border-radius: 20px;
  display: block;
}

footer {
  text-align: center;
  padding: 34px 20px 58px;
  color: rgba(255,255,255,.62);
}

.small {
  color: rgba(255,255,255,.42);
  letter-spacing: .08em;
}

@media (max-width: 760px) {
  .hero {
    padding-top: 56px;
  }

  .timeline::before {
    display: none;
  }

  .trip {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .date {
    position: static;
    text-align: left;
    padding-top: 0;
    padding-left: 8px;
  }

  .content {
    padding: 24px;
    border-radius: 24px;
  }

  .photos {
    grid-template-columns: 1fr;
  }

  .photo,
  .photo-img {
    min-height: 210px;
    height: 210px;
  }
}