:root { font-family: "Yu Gothic UI", "Noto Sans JP", system-ui, sans-serif; color: #172a46; background: #f3f0ea; }
* { box-sizing: border-box; } body { margin: 0; }.manual-header { min-height: 62px; display: flex; justify-content: space-between; align-items: center; padding: 12px clamp(18px,5vw,70px); color: #fff; background: #172a46; }.manual-header a { color: #fff; text-decoration: none; font-size: 12px; }.manual-header span { color: #aab7c9; font-size: 9px; letter-spacing: .17em; }
main { max-width: 1120px; margin: auto; padding: 42px clamp(18px,5vw,65px) 80px; }.hero { padding: clamp(35px,6vw,70px); color: #fff; background: #172a46; border-radius: 18px; }.hero p,.kicker { margin: 0 0 10px; color: #e07845; font-size: 10px; font-weight: 800; letter-spacing: .2em; }.hero h1 { margin: 0; font: 600 clamp(34px,5vw,58px)/1.35 "Yu Mincho",serif; }.hero strong { display: block; margin-top: 18px; color: #c8d0dc; font-size: 13px; font-weight: 400; }
.toc { display: flex; flex-wrap: wrap; gap: 8px; margin: 20px 0 45px; }.toc a { padding: 8px 13px; color: #172a46; background: #fff; border: 1px solid #d8d4cc; border-radius: 20px; font-size: 11px; text-decoration: none; }.section { position: relative; margin-top: 55px; scroll-margin-top: 20px; }.section > .number { position: absolute; right: 0; top: -18px; color: #dedad2; font: 58px Georgia,serif; }.section h2 { margin: 0 0 25px; font: 600 29px "Yu Mincho",serif; }.cards { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 13px; }.cards.two { grid-template-columns: repeat(2,minmax(0,1fr)); }.cards article { padding: 22px; background: #fff; border: 1px solid #dcd8d0; border-radius: 10px; }.cards b { font-size: 14px; }.cards p { margin: 9px 0 0; color: #596678; font-size: 11px; line-height: 1.8; }.steps { margin: 0; padding: 0; list-style: none; counter-reset: steps; }.steps li { display: grid; grid-template-columns: 42px 170px 1fr; align-items: center; gap: 14px; min-height: 66px; padding: 12px 16px; background: #fff; border-bottom: 1px solid #e1ddd6; counter-increment: steps; }.steps li::before { content: counter(steps,decimal-leading-zero); color: #e07845; font: 20px Georgia,serif; }.steps b { font-size: 13px; }.steps span { color: #586677; font-size: 11px; line-height: 1.7; }code { padding: 2px 6px; background: #ebe8e1; border-radius: 4px; }aside { margin-top: 13px; padding: 15px 18px; color: #66511f; background: #fbf2d9; border-left: 4px solid #d5a33b; font-size: 11px; line-height: 1.7; }.faq details { margin-bottom: 8px; padding: 15px 18px; background: #fff; border: 1px solid #dcd8d0; border-radius: 8px; }.faq summary { font-size: 13px; font-weight: 700; cursor: pointer; }.faq p { color: #586677; font-size: 11px; line-height: 1.8; }footer { padding: 40px; text-align: center; background: #172a46; }footer a { color: #fff; font-size: 12px; }
@media(max-width:700px){.manual-header span{display:none}main{padding-top:25px}.cards,.cards.two{grid-template-columns:1fr}.steps li{grid-template-columns:35px 1fr}.steps span{grid-column:2}.section>.number{font-size:42px}.hero{border-radius:12px}}