:root{color-scheme:dark;--bg:#0e0e14;--panel:#1a1a24;--ink:#f0f0f5;--muted:#b2b2c3;--line:#30313f;--accent:#c5b8ff}*{box-sizing:border-box}html{scroll-padding-top:24px}body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.9 "Segoe UI","Yu Gothic UI",Meiryo,sans-serif;overflow-wrap:anywhere}a{color:var(--accent);text-underline-offset:4px}a:hover{color:#e4dcff}a:focus-visible{outline:3px solid #a493ff;outline-offset:5px;border-radius:3px}header{border-bottom:1px solid var(--line);background:#15151e}.header-inner{max-width:1200px;margin:auto;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:22px 28px}.brand{display:flex;align-items:center;gap:12px;font-size:24px;font-weight:700;color:var(--ink);text-decoration:none}.logo{display:grid;place-items:center;background:#6046f6;width:38px;height:38px;border-radius:10px;font-size:21px;color:white}.button{display:inline-block;border:1px solid #6552b3;border-radius:8px;background:#292344;padding:9px 16px;text-decoration:none;font-size:14px}.new-tab{font-size:12px}.layout{max-width:1200px;display:grid;grid-template-columns:230px minmax(0,1fr);gap:56px;margin:0 auto;padding:48px 28px 64px}nav{align-self:start;position:sticky;top:24px;font-size:14px}.nav-title{font-weight:700;margin:0 0 14px}nav ol{list-style:none;padding:0;margin:0;border-left:1px solid var(--line)}nav a{display:block;padding:8px 0 8px 18px;text-decoration:none;color:var(--muted)}nav a:hover{background:#1c192a}main{min-width:0;max-width:800px}h1,h2{line-height:1.4;letter-spacing:-.03em}h1{font-size:42px;margin:8px 0 12px}h2{font-size:25px;margin:0 0 24px}.eyebrow{font-size:12px;letter-spacing:.16em;color:var(--accent);margin:0}.hero>p{color:var(--muted)}.notice{padding:20px 24px;margin:26px 0;border:1px solid #514175;background:#211e32;border-radius:10px}.notice strong{color:#dfd5ff}section{padding:36px 0;border-top:1px solid var(--line);margin-top:24px}p{margin:16px 0}li{padding-left:4px;margin-bottom:16px}ol,ul{padding-left:26px}li::marker{color:var(--accent);font-weight:700}strong{font-weight:700}code{font: .9em/1.8 Consolas,monospace;color:#dfd5ff;background:#24202f;padding:2px 5px;border-radius:4px}pre{padding:20px;border:1px solid var(--line);border-radius:8px;background:#17171f;white-space:pre-wrap;overflow-wrap:anywhere}pre code{background:none;padding:0}footer{border-top:1px solid var(--line);padding-top:24px;color:var(--muted);font-size:14px}.skip{position:absolute;left:16px;top:-100px;z-index:2;background:#292344;padding:12px}.skip:focus{top:8px}@media(max-width:850px){.layout{grid-template-columns:1fr;gap:32px;padding-top:28px}nav{position:static}nav ol{display:grid;grid-template-columns:1fr 1fr}nav li{margin:0}main{max-width:none}}@media(max-width:480px){.header-inner{padding:18px 16px;gap:10px;flex-wrap:wrap}.brand{font-size:21px}.button{padding:8px 10px}.new-tab{display:none}.layout{padding:24px 18px 40px}nav ol{grid-template-columns:1fr}h1{font-size:34px}h2{font-size:23px}.notice{padding:16px}section{padding-top:28px}}@media print{body{color:#111;background:white}header,nav,.skip,.button{display:none}.layout{display:block;padding:0}main{max-width:none}.notice,pre{background:white;color:#111;border-color:#999}a,code,.hero>p,.eyebrow,footer,.notice strong{color:#333}section{break-inside:avoid}}

/* ガイドの3段階構成と操作別見出し */
.chapter{margin:56px 0 0;color:var(--accent);font-size:28px}.chapter+section{margin-top:18px}h3{font-size:19px;line-height:1.5;margin:28px 0 10px}nav ul{list-style:none;padding:0 0 0 12px;margin:0}nav ul li{margin-bottom:0}nav ul a{font-size:13px;padding-top:5px;padding-bottom:5px}@media(max-width:850px){nav ol{display:block}nav>ol>li{margin-bottom:16px}}