:root{
  --font-ed: "EB Garamond", serif;
  --color-base-black: #2B2B2B;
  --color-accent-green: #2FFF2F;
  --color-accent-green-hover: #2CF52C;
}

.anniversary5 {
  container-type: inline-size;
  container-name: anniversary5-width; 
}

.anniversary5 p {
  font-size: 14px;
  line-height: 2;
}
.anniversary5 img {
  max-width: 100%;
  height: auto;
}
.anniversary5 .-ed {
  font-family: var(--font-ed);
  font-optical-sizing: auto;
  font-weight: 400;
  font-style: normal;
}
.anniversary5 .intro {
  margin-block: min(8vw, 70px);
}
.anniversary5 h1 {
  font-size: clamp(20px, (3vw + 1px), 30px);
  text-align: center;
  letter-spacing: .1em;
  line-height: 1.4;
  margin-block-end: 1.2em;
}
.anniversary5 h1 + p {
  text-align: center;
}

.anniversary5 .blanket {
  margin-block-end: 100px;
}
.anniversary5 .blanket .innerbox  {
  display: flex;
  align-items: stretch;
  margin-block-end: 6em;
}
.anniversary5 .blanket .innerbox > * {
  width: 50%;
}
.anniversary5 .blanket .innerbox > figure {
  flex-grow: 1;
}
.anniversary5 .blanket .innerbox > figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.anniversary5 .blanket .innerbox > div {
  color: var(--color-accent-green);
  padding: 2em;
  background: var(--color-base-black);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}
.anniversary5 .blanket h2,
.anniversary5 .concept h2 {
  font-family: var(--font-ed);
  font-size: clamp(20px, (3vw + 1px), 28px);
  letter-spacing: .1em;
  margin-block-end: 1.4em;
}
.anniversary5 .blanket .txt-box {
  text-align: center;
  padding-block: 2em;
  border-block: 2px solid rgba(255,255,255,.5);
}
.anniversary5 .blanket .txt-box p + p {
  margin-block-start: 1.5em;
}
.anniversary5 .blanket dl {
  padding-block-start: 2em;
}
.anniversary5 .blanket dl > div {
  display: flex;
  padding-block-start: .4em;
}
.anniversary5 .blanket dl dt {
  text-align: left;
  width: 6em;
}
.anniversary5 .blanket .innerbox .btn-wrap {
  width: 100%;
  margin-block: 30px 0;
}
.anniversary5 .blanket .image-box {
  width: 93%;
  display: flex;
  align-items: center;
  position: relative;
}
.anniversary5 .blanket .image-box + .image-box {
  margin-block-start: clamp(3em, (3.5vw + 10px), 5em);
}

.anniversary5 .blanket .image-box.-green {
  justify-content: flex-start;
}
.anniversary5 .blanket .image-box.-black {
  flex-direction: row-reverse;
  margin-left: 7%;
}
.anniversary5 .blanket .image-box::after {
  content: "";
  width: 100%;
  height: 1px;
  position: absolute;
  left: 0;
  right: 0;
  bottom: 28%;
  z-index: -1;
}
.anniversary5 .blanket .image-box.-green::after {
  background: var(--color-accent-green);
}
.anniversary5 .blanket .image-box.-black::after {
  background: var(--color-base-black);
}
.anniversary5 .blanket .image-box figure {
  width: 46%;
  min-width: 280px;
  max-width: 440px;
}
.anniversary5 .blanket .image-box .txt {
  text-align: center;
  flex-grow: 1;
  margin-block-end: 10%;
}
.anniversary5 .blanket .image-box p + p {
  margin-block-start: 2em;
}

.anniversary5 .btn-wrap {
  margin-block: 70px;
}
.anniversary5 .btn-wrap a {
  font-weight: 600;
  letter-spacing: .1em;
  padding: 10px;
  width: 80%;
  max-width: 300px;
  margin-inline: auto;
  background: var(--color-accent-green);
  display: flex;
  justify-content: center;
  align-items: center;
  transition: background-color .3s;
}
.anniversary5 .btn-wrap a:hover {
  background-color: var(--color-accent-green-hover);
}

.anniversary5 .concept .intro {
  color: var(--color-accent-green);
  background: var(--color-base-black);
}
.anniversary5 .concept .intro .txt-box {
  text-align: center;
  padding: 6em 2em;
}

.anniversary5 .concept .image-box {
  width: 84%;
  margin-inline: auto;
  display: flex;
  justify-content: space-between;
  gap: 5%;
}
.anniversary5 .concept .image-box + .image-box {
  margin-block-start: 6em;
}
.anniversary5 .concept .image-box.-reverse {
  flex-direction: row-reverse;
}
.anniversary5 .concept .image-box figure {
  width: 40%;
  max-width: 370px;
}
.anniversary5 .concept .image-box .txt {
  width: 50%;
  max-width: 420px;
  text-align: center;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}
.anniversary5 .concept .image-box .txt p + p {
  margin-block-start: 2em;
}

@container anniversary5-width (max-width: 820px) {
  .anniversary5 .onlySp {
    display: block;
  }
  .anniversary5 p {
    line-height: 1.8;
  }

  .anniversary5 .blanket .innerbox {
    flex-direction: column;
  }
  .anniversary5 .blanket .innerbox > * {
    width: 100%;
    max-width: 710px;
    margin-inline: auto;
  }
  .anniversary5 .blanket .innerbox > div {
    padding: 3em 1.5em;
  }

  .anniversary5 .blanket .image-box {
    width: 100%;
    flex-direction: column-reverse;
  }
  .anniversary5 .blanket .image-box.-green {
    justify-content: revert;
  }
  .anniversary5 .blanket .image-box.-black {
    flex-direction: column-reverse;
    margin-inline: auto;
  } 
  .anniversary5 .blanket .image-box::after {
    display: none;
  }
  .anniversary5 .blanket .image-box figure {
    width: 82%;
    min-width: revert;
    margin-inline: auto;
    margin-block-end: 5em;
    position: relative;
  } 
  .anniversary5 .blanket .image-box figure::after {
    content: "";
    width: 1px;
    height: 3em;
    position: absolute;
    left: 0;
    right: 0;
    bottom: -3em;
    margin: auto;
    z-index: -1;
  }
  .anniversary5 .blanket .image-box.-green figure::after {
    background: var(--color-accent-green);
  }
  .anniversary5 .blanket .image-box.-black figure::after {
    background: var(--color-base-black);
  } 

  .anniversary5 .concept .intro .txt-box {
    text-align: center;
    padding: 3em 1em;
  }
  .anniversary5 .concept .intro .txt-box p {
    white-space: pre;
  }

  .anniversary5 .concept .image-box,
  .anniversary5 .concept .image-box.-reverse {
    width:100%;
    flex-direction: column;
    align-items: center;
    row-gap: 3em;
  }
  .anniversary5 .concept .image-box figure {
    width: 74%;
    max-width:420px;
  }
 .anniversary5 .concept .image-box .txt {
    width: 100%;
    max-width: revert;
  }

}