main {
  	font-family: "Hiragino Kaku Gothic Pro", Meiryo, sans-serif;
      color: #000;
      line-height: 1.6;
      background: #FFFDE7;
      padding: 1rem;
    }
    article{
	max-width:1080px;
	margin:auto;
}
    .pop-rivet {
      max-width: 1080px;
      margin: 0 auto;
      background: #ffffff;
      padding: 2rem;
      border-radius: 8px;
      box-shadow: 0 4px 20px rgba(0,0,0,0.1);
    }
    .pop-rivet h2 {
      background: #fdd835;
      color: #212121;
      padding: 1rem;
      border-radius: 8px;
      font-size: clamp(1.5rem, 0.938rem + 1.8vi, 2.063rem);
      font-weight:600;
      text-align: center;
      margin-bottom: 2rem;
    }
    .pop-rivet h2 {
      background: #fbc02d;
      color: #212121;
      padding: 0.8rem;
      border-radius: 6px;
      margin-top: 3rem;
      text-align: center;
    }
    .pop-rivet section {
      padding: 1.5rem 0;
      border-bottom: 1px dashed #ccc;
    }
    .pop-rivet p,
    .pop-rivet ul {
      font-size: 1.1rem;
      max-width: 600px;
      margin: 0 auto 1em;
    }
    .pop-rivet ul {
      list-style-type: disc;
      padding-left: 1.5em;
    }
    .pop-rivet li {
      font-size: 1.1rem;
    }
    figure {
      margin: 2rem 0;
      text-align: center;
    }
    figure img {
      max-width: 100%;
      height: auto;
      border: 1px solid #ccc;
      border-radius: 4px;
      box-shadow: 0 2px 12px rgba(0,0,0,0.1);
    }
    figcaption {
      font-size: 0.9rem;
      color: #555;
      margin-top: 0.5rem;
    }
    .pop-rivet .link-box {
      margin-top: 3rem;
      text-align: center;
    }
    .pop-rivet .link-box a {
      display: inline-flex;
      align-items: center;
      gap: 0.5em;
      padding: 0.8em 1.5em;
      background: #d32f2f;
      color: #fff;
      text-decoration: none;
      font-weight: bold;
      border-radius: 5px;
      box-shadow: 0 2px 8px rgba(0,0,0,0.2);
      transition: background 0.3s;
    }
    .pop-rivet .link-box a:hover {
      background: #b71c1c;
    }
    .pop-rivet .link-box a img {
      width: 24px;
      height: 24px;
    }