:root{--cpp-ink:#0f1b2d;--cpp-ink-2:#334155;--cpp-muted:#64748b;--cpp-line:#dfe7ef;--cpp-bg:#f7fafd;--cpp-bg-2:#eef4fa;--cpp-card:#ffffff;--cpp-accent:#0369a1;--cpp-accent-2:#0ea5e9}
body{font-family:"Hiragino Sans","Noto Sans JP","Yu Gothic",system-ui,-apple-system,sans-serif!important;background:#f7fafd!important;color:var(--cpp-ink)!important;line-height:1.72!important}
.top-nav{position:sticky;top:0;z-index:50;background:rgba(247,250,253,.92);backdrop-filter:saturate(150%) blur(8px);border-bottom:1px solid var(--cpp-line)}
.top-nav-inner{max-width:1120px;margin:0 auto;padding:12px 20px;display:flex;gap:20px;align-items:center;flex-wrap:wrap;font-size:14px}
.top-nav .brand{font-weight:800;color:var(--cpp-ink);text-decoration:none;font-size:15px}
.top-nav .brand em{font-style:normal;color:var(--cpp-accent)}
.top-nav-links{display:flex;gap:16px;margin-left:auto;flex-wrap:wrap;align-items:center}
.top-nav-links a{color:var(--cpp-ink-2);text-decoration:none;font-weight:600}
.top-nav-links .div{color:#cbd5e1}
.page-wrap{max-width:1020px;margin:0 auto;padding:0 20px}
.crumb{padding:16px 0 8px;font-size:13px;color:var(--cpp-muted)}
.crumb a{color:var(--cpp-accent);text-decoration:none}
.page-head{padding:30px 24px;background:linear-gradient(135deg,#f0f9ff,#e0f2fe);border-radius:16px;margin:20px 0;text-align:center}
.page-head .star{color:#f59e0b;font-size:20px}
.page-head h1{font-size:clamp(26px,4vw,36px);font-weight:800;color:var(--cpp-ink);line-height:1.4}
.page-head .lead{color:var(--cpp-ink-2);font-size:15.5px;margin-top:10px;line-height:1.8}
.toc{background:#fff;border:1px solid var(--cpp-line);border-radius:10px;padding:14px 18px;margin:16px 0}
.toc h2{font-size:13px;color:var(--cpp-muted);font-weight:700;letter-spacing:.03em;margin-bottom:8px}
.toc-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(190px,1fr));gap:6px}
.toc-grid a{text-decoration:none;color:var(--cpp-ink-2);font-size:13.5px;padding:6px 10px;border-radius:5px}
.toc-grid a:hover{background:var(--cpp-bg-2);color:var(--cpp-accent)}
section.block{background:var(--cpp-card);border:1px solid var(--cpp-line);border-radius:12px;padding:22px 26px;margin:16px 0}
section.block h2{font-size:20px;font-weight:700;color:var(--cpp-ink);margin-bottom:10px;border-left:3px solid var(--cpp-accent);padding-left:12px}
section.block p{font-size:14.5px;color:var(--cpp-ink-2);line-height:1.9;margin:8px 0}
section.block code{background:#eef4fa;border:1px solid var(--cpp-line);padding:1px 6px;border-radius:4px;font-size:13.5px;color:var(--cpp-ink);font-family:"Consolas","Monaco",monospace}
.ba{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:10px 0}
@media(max-width:680px){.ba{grid-template-columns:1fr}}
.ba-card{background:#0f172a;border-radius:10px;border:1px solid #1e293b;overflow:hidden}
.ba-bar{background:#1e293b;padding:6px 14px;display:flex;justify-content:space-between;font-family:monospace}
.ba-bar .fn{font-size:12px;color:#94a3b8}
.ba-bar .tag{font-size:10.5px;font-weight:700;padding:2px 8px;border-radius:3px;background:#64748b;color:#fff}
.ba-bar .tag.cpp{background:var(--cpp-accent)}
.ba-code{padding:12px 14px;font-family:monospace;font-size:12.5px;line-height:1.7;color:#cbd5e1;white-space:pre;overflow-x:auto}
.ba-code .k{color:#c084fc}.ba-code .f{color:#60a5fa}.ba-code .s{color:#86efac}.ba-code .c{color:#64748b;font-style:italic}.ba-code .n{color:#fbbf24}.ba-code .t{color:#22d3ee}
.note{background:var(--cpp-bg-2);border-left:3px solid var(--cpp-accent-2);padding:10px 14px;border-radius:0 6px 6px 0;margin:10px 0;font-size:14px;color:var(--cpp-ink-2);line-height:1.8}
.pager{margin:20px 0;display:flex;gap:12px;flex-wrap:wrap}
.pager a{flex:1;min-width:220px;display:block;background:var(--cpp-card);border:1px solid var(--cpp-line);border-radius:8px;padding:16px 18px;text-decoration:none;color:inherit}
.pager a.next{text-align:right;background:var(--cpp-bg-2)}
.pager a .k{font-size:11px;color:var(--cpp-muted)}
.pager a .t{font-size:14.5px;font-weight:700;color:var(--cpp-ink);margin-top:4px}
.page-footer{max-width:1120px;margin:30px auto 0;padding:20px;color:var(--cpp-muted);font-size:13px;border-top:1px solid var(--cpp-line);display:flex;gap:16px;justify-content:space-between;flex-wrap:wrap}
.page-footer a{color:var(--cpp-ink-2);text-decoration:none}