:root{--bg:#fff;--line:#bdbdbd;--text:#151515;--sub:#555;--max:1400px}
*{box-sizing:border-box}
html{font-family:"Helvetica Neue","Yu Gothic","YuGothic","Noto Sans JP",Arial,sans-serif;color:var(--text);background:var(--bg)}
body{margin:0;line-height:1.7}
a{color:inherit}
.site-header{background:#f5f5f5;border-bottom:1px solid #ececec}
.header-inner{max-width:var(--max);margin:0 auto;padding:34px 40px 28px;position:relative;text-align:center}
.brand-mark{position:absolute;left:40px;top:30px;width:300px;text-align:left}

.brand-center{font-size:26px;line-height:1.25;letter-spacing:.04em}
.brand-center span{display:block;font-size:27px;letter-spacing:.08em}
.page-title{margin:30px 0 2px;font-weight:400;letter-spacing:.04em;font-size:42px}
.subtitle{margin:4px 0 0;font-size:19px;letter-spacing:.02em}
main{max-width:var(--max);margin:0 auto;padding:70px 40px 80px}
.home-grid{max-width:980px;margin:0 auto;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:56px 60px}
.home-card{min-height:165px;border:1px solid #999;text-decoration:none;display:flex;flex-direction:column;justify-content:center;align-items:center;padding:28px;background:#fff;transition:.18s ease;text-align:center}
.home-card:hover,.home-card:focus-visible{background:#f6f6f6;border-color:#333;transform:translateY(-2px)}
.home-card .title{font-size:31px;letter-spacing:.02em}.home-card .note{margin-top:4px;font-size:13px}
.footer{text-align:center;padding:10px 20px 40px;font-size:14px;color:#333}
.sample-intro{max-width:980px;margin:0 auto 40px;color:var(--sub);font-size:15px}
.sample-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:34px}
.sample-card{border:1px solid #bbb;background:#fff;overflow:hidden;display:flex;flex-direction:column}
.sample-image-wrap{aspect-ratio:4/3;background:#fafafa;overflow:hidden;border-bottom:1px solid #ddd}
.sample-image-wrap img{width:100%;height:100%;object-fit:contain;display:block;transition:transform .2s ease}
.sample-card:hover img{transform:scale(1.025)}
.sample-body{padding:18px;display:flex;flex-direction:column;flex:1}
.sample-name{margin:0 0 14px;font-size:18px;line-height:1.45;font-weight:500}
.download-btn{margin-top:auto;display:block;border:1px solid #555;text-align:center;text-decoration:none;padding:10px 12px;background:#fff;font-size:14px}
.download-btn:hover,.download-btn:focus-visible{background:#efefef}
.top-link{max-width:var(--max);margin:0 auto;padding:20px 40px 0;text-align:right}
.top-link a{font-size:14px}
.notice{max-width:980px;margin:50px auto 0;padding:18px 20px;background:#f7f7f7;border:1px solid #ddd;font-size:14px}
@media (max-width:900px){
.header-inner{padding:28px 20px 24px}.brand-mark{position:absolute;left:40px;top:30px;width:300px;text-align:left}
.brand-center{font-size:20px}.brand-center span{font-size:22px}.page-title{font-size:32px;margin-top:22px}.subtitle{font-size:15px}
main{padding:42px 20px 60px}.home-grid{grid-template-columns:1fr;gap:22px}.home-card{min-height:125px}.home-card .title{font-size:25px}
.sample-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}}
@media (max-width:600px){.sample-grid{grid-template-columns:1fr}.page-title{font-size:28px}}

.brand-mark img{display:block;width:100%;height:auto;max-width:300px}

.home-extra{
  max-width:980px;
  margin:56px auto 0;
  display:flex;
  justify-content:center;
}
.home-card-single{
  width:calc(50% - 30px);
  min-width:420px;
}

@media (max-width:900px){
  .home-extra{margin-top:22px}
  .home-card-single{width:100%;min-width:0}
}

.tool-notice{
  max-width:980px;
  margin:38px auto 0;
  padding:20px 24px;
  border:1px solid #cfcfcf;
  background:#f7f7f7;
  color:#333;
  font-size:15px;
  line-height:1.9;
}
.tool-notice p{
  margin:0;
}

.downloads-intro{max-width:980px;margin:0 auto 38px;color:#555;font-size:15px}
.downloads-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:34px}
.download-card{border:1px solid #bbb;background:#fff;overflow:hidden;display:flex;flex-direction:column}
.download-thumb{aspect-ratio:4/3;background:#fafafa;overflow:hidden;border-bottom:1px solid #ddd;display:flex;align-items:center;justify-content:center}
.download-thumb img{width:100%;height:100%;object-fit:contain;display:block}
.download-placeholder{color:#777;font-size:14px;padding:20px;text-align:center}
.download-body{padding:18px;display:flex;flex-direction:column;flex:1}
.download-title{margin:0 0 14px;font-size:18px;line-height:1.5;font-weight:500}
.pdf-link{margin-top:auto;display:block;border:1px solid #555;text-align:center;text-decoration:none;padding:10px 12px;background:#fff;font-size:14px}
.pdf-link:hover,.pdf-link:focus-visible{background:#efefef}
@media (max-width:900px){.downloads-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}}
@media (max-width:600px){.downloads-grid{grid-template-columns:1fr}}

/* トップページ下段ボタン：既存ボタンとサイズ・間隔を統一 */
.home-extra{
  max-width:980px;
  margin:56px auto 0;
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:56px 60px;
}
.home-extra .home-card-single{
  width:100%;
  min-width:0;
  min-height:165px;
}
.home-extra .title-small{
  font-size:24px;
  line-height:1.5;
}
@media (max-width:900px){
  .home-extra{
    grid-template-columns:1fr;
    gap:22px;
    margin-top:22px;
  }
  .home-extra .home-card-single{
    min-height:125px;
  }
  .home-extra .title-small{
    font-size:21px;
  }
}


/* ===== SCARTSロゴ：小画面でページタイトルと重ならないように調整 ===== */
@media (max-width:900px){
  .header-inner{
    display:flex;
    flex-direction:column;
    align-items:center;
    padding:24px 20px 26px;
  }

  .brand-mark{
    position:static !important;
    left:auto !important;
    top:auto !important;
    width:min(280px, 72vw) !important;
    max-width:280px;
    margin:0 auto 18px !important;
    text-align:center;
    order:0;
  }

  .brand-mark img{
    display:block;
    width:100%;
    max-width:100%;
    height:auto;
    margin:0 auto;
  }

  .brand-center{
    order:1;
    margin:0;
  }

  .page-title{
    order:2;
    width:100%;
    margin:20px 0 2px !important;
    text-align:center;
    line-height:1.35;
  }

  .subtitle{
    order:3;
    width:100%;
    text-align:center;
  }
}

@media (max-width:600px){
  .header-inner{
    padding:20px 16px 22px;
  }

  .brand-mark{
    width:min(240px, 76vw) !important;
    margin-bottom:16px !important;
  }

  .brand-center{
    font-size:17px !important;
    line-height:1.3;
  }

  .brand-center span{
    font-size:20px !important;
  }

  .page-title{
    font-size:26px !important;
    margin-top:18px !important;
    overflow-wrap:anywhere;
  }

  .subtitle{
    font-size:14px !important;
    line-height:1.6;
  }
}