:root{--navy:#102438;--ink:#1b3445;--muted:#526778;--cyan:#94e5d6;--teal:#137b71;--line:#d9e3e4;--paper:#f2f6f4}*{box-sizing:border-box}html{font-size:18px;scroll-behavior:smooth;scroll-padding-top:125px}body{margin:0;color:var(--ink);font-family:"Yu Gothic",Meiryo,sans-serif;line-height:1.95;background:#fff}h1,h2,h3,p{margin:0}h1,h2,h3{line-height:1.5;letter-spacing:.01em}h1{font-size:2.65rem}h2{font-size:1.9rem}h3{font-size:1.3rem}p{color:var(--muted)}p+p{margin-top:1.1em}a{color:inherit;text-decoration:none}a:focus-visible{outline:3px solid #c77d21;outline-offset:4px}a:hover{text-decoration:underline}.wrap{max-width:1260px;padding:0 45px;margin:auto}.skip{position:fixed;top:-100px;left:20px;background:#fff;padding:12px;z-index:50}.skip:focus{top:10px}.review-strip{background:#e7f0eb;font-size:.85rem;display:flex;justify-content:space-between;gap:15px;padding:8px 4vw;color:#39695c}.review-strip a{border-bottom:1px solid 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p{color:#d3e4e8;margin-top:24px}.contact .button{margin-top:28px}.contact-note{font-size:.95rem}.contact h2{font-size:1.9rem}footer.wrap{padding-top:25px;padding-bottom:25px;display:flex;justify-content:space-between;gap:20px;font-size:.85rem}.hero-b{background:linear-gradient(135deg,#f3f7f4,#edf6f5)}.hero-b-grid{display:grid;grid-template-columns:1.45fr 1fr;gap:45px;align-items:center}.hero-b h1{font-size:2.45rem}.hero-b .button{background:var(--navy);color:white}.hero-b .hero-lead{font-size:1.1rem}.outcome-card{background:linear-gradient(#102c3be8,#102c3bf5),url('../assets/infra-concept.png') 65% center/cover;padding:36px;color:white;border-radius:4px}.outcome-card>p{color:var(--cyan);font-size:1rem;font-weight:700}.outcome-card ol{list-style:none;padding:0;margin:24px 0}.outcome-card li{padding:13px 0;border-bottom:1px solid #ffffff29;font-size:1.05rem;display:flex;gap:17px}.outcome-card li span{color:var(--cyan);font:1.2rem Arial}.outcome-card 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@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}@media print{header,.review-strip,.contact,footer{display:none}.section{padding:25px 0}.wrap{padding:0}.hero{padding:30px 0}.hero-a,.evidence{background:white;color:black}.hero-a p,.evidence p{color:#333}.hero-links,.hero-tags{display:none}.flow{grid-template-columns:1fr 1fr}.scenario{break-inside:avoid}.evidence-grid,.support-grid{grid-template-columns:1fr}.split{grid-template-columns:1fr}.report-sheet{box-shadow:none}}
/* 案Aは本文を軸にした編集。装飾より、見出しと行間で読む順序を作る。 */
.variant-a .value{background:white}
.variant-a .support-grid{display:block;border-top:1px solid var(--line)}
.variant-a .support-grid article{display:grid;grid-template-columns:180px 1fr 1fr;gap:12px 30px;padding:30px 0;border-top:0;border-bottom:1px solid var(--line);background:transparent}
.variant-a .support-grid article>span{grid-column:1;grid-row:1/3;padding-top:6px}
.variant-a .support-grid h3{grid-column:2/4;margin:0 0 5px}
.variant-a .support-grid p{grid-column:2}
.variant-a .support-grid ul{grid-column:3;margin:0;padding-left:20px}
.variant-a .evidence-grid{display:block}
.variant-a .evidence-grid article{display:grid;grid-template-columns:150px 1fr 1.1fr;gap:15px 30px;padding:28px 0}
.variant-a .evidence-grid .type{grid-column:1;grid-row:1/3;margin:0}
.variant-a .evidence-grid h3{grid-column:2;margin:0}
.variant-a .evidence-grid article>p:not(.technical){grid-column:2;margin:0}
.variant-a .evidence-grid .technical{grid-column:3;grid-row:1/3;padding:0 0 0 28px;border-top:0;border-left:1px solid #506d80;margin:0}
.variant-a .evidence h2{max-width:950px}
.variant-a .report-sheet{box-shadow:none;background:#f6f8f6}
@media(max-width:760px){.variant-a .support-grid article{display:block;padding:28px 0}.variant-a .support-grid h3{margin:16px 0}.variant-a .support-grid ul{margin-top:20px}.variant-a .evidence-grid article{display:block;padding:28px 0}.variant-a .evidence-grid h3{margin:16px 0}.variant-a .evidence-grid article>p:not(.technical){margin-top:18px}.variant-a .evidence-grid .technical{margin-top:22px;padding:20px 0 0;border-left:0;border-top:1px solid #506d80}}