:root{--navy:#1e2761;--ink:#222b40;--muted:#5f6c80;--amber:#f59e0b;--border:#dde4ef;--bg:#f7f9fd}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:30px}body{margin:0;color:var(--ink);font:17px/1.95 var(--jp);background:white;-webkit-font-smoothing:antialiased}
a{color:var(--navy);text-underline-offset:4px}a:hover{color:#925a00}a:focus-visible,summary:focus-visible,[tabindex]:focus-visible{outline:3px solid var(--amber);outline-offset:5px}img{max-width:100%;height:auto}
.skip{position:absolute;left:20px;top:-100px;background:#fff;padding:12px;z-index:10}.skip:focus{top:12px}
.site-header{border-bottom:1px solid var(--border);background:#fff}.header-inner{max-width:1180px;margin:auto;display:flex;align-items:center;justify-content:space-between;gap:24px;padding:22px 28px}.brand img{display:block;width:206px;height:auto}.desktop-nav{display:flex;gap:26px;align-items:center}.desktop-nav a{text-decoration:none;font-size:15px;font-weight:700}.contact-link,.article-cta a{background:var(--amber);color:#161e40;border-radius:50px;padding:10px 22px;text-decoration:none;font-weight:700}.mobile-nav{display:none}
.breadcrumbs{max-width:1120px;margin:28px auto;padding:0 28px;font-size:13px;color:var(--muted)}.breadcrumbs ol{display:flex;flex-wrap:wrap;gap:8px;list-style:none;margin:0;padding:0}.breadcrumbs li+li::before{content:'/';margin-right:8px;color:#8a94a8}.breadcrumbs a{text-decoration:none}
.article{max-width:800px;padding:24px 24px 96px;margin:auto}.article-head{margin-bottom:44px}.eyebrow{font-size:12px;letter-spacing:.22em;color:#956000;font-weight:700}.article h1{font-size:clamp(1.9rem,3.6vw,2.7rem);line-height:1.55;color:var(--navy);margin:18px 0 24px;letter-spacing:-.02em}.article-meta{font-size:14px;color:var(--muted);padding-bottom:26px;border-bottom:1px solid var(--border)}
.article p{margin:0 0 24px}.article h2{margin:64px 0 24px;padding-top:10px;font-size:1.6rem;line-height:1.6;color:var(--navy);border-top:3px solid #e8eef8}.article h3{color:var(--navy);font-size:1.3rem;margin:36px 0 18px}.article li{margin:12px 0}.article ul,.article ol{padding-left:1.6em}.toc{margin:36px 0 44px;padding:24px 28px;background:var(--bg);border:1px solid var(--border);border-radius:16px}.toc h2{border:0;margin:0 0 12px;padding:0;font-size:1rem}.toc ol{margin:0}.toc li{font-size:16px;margin:8px 0}.toc a{text-decoration:none}
.table-scroll{overflow-x:auto;border:1px solid var(--border);border-radius:12px;margin:28px 0 36px}.table-scroll table{border-collapse:collapse;width:100%;min-width:550px;font-size:16px;line-height:1.85}.table-scroll caption{text-align:left;padding:14px 18px;color:var(--muted);font-size:14px;background:#fff}.table-scroll th{background:#ecf1fb;color:var(--navy);font-weight:700;text-align:left}.table-scroll td,.table-scroll th{padding:18px 20px;border-bottom:1px solid var(--border);vertical-align:top}.table-scroll tr:last-child td{border-bottom:0}
.article-cta{margin:40px 0;padding:30px;background:var(--bg);border:1px solid var(--border);border-radius:16px;display:flex;gap:12px;flex-wrap:wrap}.article-cta a{display:inline-block;text-align:center;font-size:16px;line-height:1.7}.article-cta a:hover{background:#fbbf24;color:#161e40}.article-note{padding:24px;background:var(--bg);font-size:14px;color:var(--muted);border-left:3px solid var(--border)}
.site-footer{background:#0c0f2b;color:#cadcfc;padding:44px 28px;font-size:14px}.footer-inner{max-width:1120px;margin:auto}.site-footer nav{display:flex;flex-wrap:wrap;gap:16px 24px;margin-bottom:24px}.site-footer a{color:#fff}.site-footer p{margin:12px 0}.site-footer small{font-size:12px}
@media(max-width:850px){.desktop-nav{display:none}.header-inner{flex-wrap:wrap;padding:18px 22px;gap:12px}.brand img{width:180px}.mobile-nav{display:block;margin-left:auto}.mobile-nav summary{cursor:pointer;font-size:15px;font-weight:700;color:var(--navy)}.mobile-nav nav{display:flex;flex-direction:column;padding:20px 0 0;gap:16px}.mobile-nav[open]{flex-basis:100%}.mobile-nav nav a{text-decoration:none}.article{padding:16px 22px 64px}.breadcrumbs{padding:0 22px;font-size:12px}.article h1{font-size:1.85rem}.article h2{font-size:1.4rem;margin-top:48px}.toc{padding:20px}.article-cta{padding:22px}.article-cta a{width:100%}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

.guide-index .table-scroll table{min-width:0;table-layout:fixed}.guide-index .table-scroll th,.guide-index .table-scroll td{padding:16px}

.guide-diagram{margin:36px 0 44px;max-width:100%}
.guide-diagram picture{display:block;overflow:hidden;border:1px solid var(--border);border-radius:16px;background:var(--bg)}
.guide-diagram img{display:block;width:100%;height:auto}
.guide-diagram figcaption{font-size:16px;color:var(--muted);line-height:1.85;margin-top:14px}
.guide-diagram figcaption a{display:inline-block;margin-top:8px;font-size:14px}