:root{--domestic:#d4380d;--domestic-soft:#fff2e8;--domestic-border:#ffbb96;--crossborder:#096dd9;--crossborder-soft:#e6f4ff;--crossborder-border:#91caff}.site-header nav .nav-item{position:relative;display:flex;flex:none;align-items:center}.site-header nav .nav-item>a{display:inline-flex;align-items:center}.site-header nav .nav-menu{position:absolute;z-index:70;top:100%;left:0;display:grid;width:290px;padding:8px;border:1px solid var(--line);border-radius:var(--r-md);background:var(--surface);box-shadow:var(--shadow-3);opacity:0;visibility:hidden;transform:translateY(4px);transition:opacity .14s,transform .14s,visibility .14s}.site-header nav .nav-item.has-menu:focus-within .nav-menu,.site-header nav .nav-item.has-menu:hover .nav-menu{opacity:1;visibility:visible;transform:translateY(0)}.site-header nav .nav-menu a{display:grid;grid-gap:3px;gap:3px;padding:10px 12px;border-radius:var(--r-sm);white-space:normal}.site-header nav .nav-menu a strong{color:var(--ink);font-size:13.5px;font-weight:700}.site-header nav .nav-menu a span{color:var(--muted-2);font-size:12px;font-weight:500;line-height:1.5}.site-header nav .nav-menu a:hover strong{color:var(--primary)}.division-badge{padding:2px 9px;border:1px solid transparent;border-radius:var(--r-pill);font-size:11px;font-weight:800;letter-spacing:.2px;white-space:nowrap}.division-badge.is-domestic{border-color:var(--domestic-border);color:var(--domestic);background:var(--domestic-soft)}.division-badge.is-crossborder{border-color:var(--crossborder-border);color:var(--crossborder);background:var(--crossborder-soft)}.platform-link{color:var(--primary);font-weight:600}.platform-link:hover{text-decoration:underline}.card-meta,.hero-chips{flex-wrap:wrap}.hero-chips{display:flex;gap:8px;margin-top:16px}.hero-chip{padding:5px 12px;border:1px solid var(--line);border-radius:var(--r-pill);color:var(--muted);background:var(--surface);font-size:12px;font-weight:600}.hero-chip.is-domestic{border-color:var(--domestic-border);color:var(--domestic);background:var(--domestic-soft)}.hero-chip.is-crossborder{border-color:var(--crossborder-border);color:var(--crossborder);background:var(--crossborder-soft)}.guide-list-3{grid-template-columns:repeat(3,minmax(0,1fr))}.series-card{display:flex;flex-direction:column}.series-card-chapters{display:grid;grid-gap:2px;gap:2px;margin:14px 0 0;padding:12px 0 0;border-top:1px dashed var(--line-strong);list-style:none}.series-card-chapters a{display:flex;gap:9px;padding:5px 0;color:var(--ink-2);font-size:12.5px;font-weight:600;line-height:1.5}.series-card-chapters a:hover{color:var(--primary)}.series-card-index{flex:none;color:var(--muted-2);font:800 11px/1.6 DM Sans,Arial,sans-serif;letter-spacing:.4px}.series-card-chapters a:hover .series-card-index{color:var(--primary)}.hub-section{padding:0 0 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strong{color:var(--primary)}.platform-tile-blurb{margin:0;color:var(--muted);font-size:12.5px;line-height:1.65}.platform-tile-meta{margin-top:auto;padding-top:9px;color:var(--muted-2);font-size:11.5px;font-weight:700}.topic-pill{display:inline-flex;align-items:center;gap:6px;padding:6px 12px;border:1px solid var(--line);border-radius:var(--r-pill);color:var(--ink-2);background:var(--surface);font-size:12.5px;font-weight:600}.topic-pill b{color:var(--muted-2);font:700 11px/1 DM Sans,Arial,sans-serif}.topic-pill:hover{border-color:var(--primary-border);background:var(--primary-soft)}.topic-pill:hover,.topic-pill:hover b{color:var(--primary)}.filter-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:20px}.filter-chip{display:inline-flex;align-items:center;gap:7px;padding:7px 14px;border:1px solid var(--line-strong);border-radius:var(--r-pill);color:var(--ink-2);background:var(--surface);font:600 12.5px/1 DM Sans,Arial,sans-serif;cursor:pointer;transition:color .16s,background .16s,border-color .16s}.filter-chip b{color:var(--muted-2);font-size:11px;font-weight:800}.filter-chip:hover{border-color:var(--primary-border);color:var(--primary)}.filter-chip.is-active{border-color:var(--primary);color:#fff;background:var(--primary)}.filter-chip.is-active b{color:rgba(255,255,255,.82)}.filter-bar{display:flex;flex-direction:column;gap:8px;margin-bottom:24px}.filter-bar .filter-row{margin-bottom:0}.guide-card[hidden]{display:none}.division-block{padding:22px 24px 24px;border:1px solid var(--line);border-radius:var(--r-md);background:var(--surface);box-shadow:var(--shadow-1);scroll-margin-top:calc(var(--header-h) + 22px)}.division-block+.division-block{margin-top:18px}.division-block[hidden]{display:none}.division-block.is-domestic{border-top:3px solid var(--domestic)}.division-block.is-crossborder{border-top:3px solid var(--crossborder)}.division-head{display:flex;align-items:center;gap:10px}.division-head 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strong{color:var(--primary)}.chapter-pager-link.is-next{text-align:right}.comments{margin-top:44px;padding-top:26px;border-top:1px solid var(--line)}.comments-head{display:flex;align-items:baseline;justify-content:space-between;gap:12px;margin-bottom:16px}.comments-head h2{margin:0;font-size:20px;font-weight:800;letter-spacing:-.4px}.comments-count{color:var(--muted-2);font-size:12.5px;font-weight:600}.comment-note{margin:0 0 12px;padding:11px 13px;border:1px solid var(--line);border-radius:var(--r-sm);color:var(--muted);background:var(--soft);font-size:12.5px;line-height:1.7}.comment-note.is-warn{border-color:#ffccc7;color:#a8071a;background:#fff5f5}.comment-note.is-ok{border-color:#b7eb8f;color:#237804;background:#f6ffed}.comment-note code{padding:1px 5px;border-radius:5px;background:#fff;font-size:11.5px}.comment-login{padding:22px 24px;border:1px dashed var(--line-strong);border-radius:var(--r-md);background:var(--soft)}.comment-login p{margin:0 0 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