:root{--dual-ink:#16242b;--dual-paper:#f5f1e8;--dual-white:#fffcf7;--dual-teal:#0e6b66;--dual-navy:#174a69;--dual-warn:#c84c35;--dual-line:#c9c2b5;--dual-muted:#5f6b6e}.skip{z-index:300;color:#111;background:#fff;padding:.8rem;position:fixed;top:-5rem;left:1rem}.skip:focus{top:1rem}.dual-main{color:var(--dual-ink);background:var(--dual-paper);font-family:Inter,Noto Sans TC,Noto Sans,system-ui,sans-serif;overflow:hidden}.dual-main button{font:inherit}.dual-main .tb-h1-seo{clip:rect(0,0,0,0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.dual-main .route-card{background:var(--dual-ink);color:#fff;max-width:1120px;margin:2rem auto;padding:1.2rem;box-shadow:16px 16px #0e6b6630}.dual-main .route-card span{border-bottom:1px solid #ffffff26;grid-template-columns:42px 1fr;gap:.15rem 1rem;padding:1.4rem .6rem;display:grid}.dual-main .route-card span:last-child{border:0}.dual-main .route-card i{color:#71b4ad;grid-row:1/3;font:italic 1.5rem Georgia}.dual-main .route-card small{color:#cbd7d8;line-height:1.55}.dual-main .code,.dual-main .eyebrow{letter-spacing:.16em;color:var(--dual-teal);text-transform:uppercase;font-size:.72rem;font-weight:800}.dual-main .answer{background:var(--dual-navy);color:#fff;grid-template-columns:.7fr 1.3fr;gap:4rem;padding:4.5rem clamp(1.2rem,7vw,8rem);display:grid}.dual-main .answer .eyebrow{color:#83d0c8}.dual-main .answer h2,.dual-main .chapter h2,.dual-main .preflight h2,.dual-main .faq h2{font-family:Georgia,Noto Serif TC,serif;line-height:1.08}.dual-main .answer h2{margin:.7rem 0;font-size:clamp(2rem,3.5vw,3.6rem)}.dual-main .answer>p{margin:0;font-size:1.1rem;line-height:1.9}.dual-main .answer-copy{color:#fff;cursor:pointer;background:#ffffff18;border:1px solid #ffffff80;border-radius:999px;margin-top:1rem;padding:.7rem 1rem;font-weight:700}.dual-main .reading{grid-template-columns:280px minmax(0,1fr);gap:5rem;max-width:1280px;margin:auto;padding:6rem 2rem;display:grid}.dual-main .reading>article{min-width:0}.dual-main .reading aside{border-top:3px solid var(--dual-ink);height:max-content;position:sticky;top:98px}.dual-main .reading aside p{letter-spacing:.15em;font-size:.68rem}.dual-main .reading aside a{border-top:1px solid var(--dual-line);color:var(--dual-ink);grid-template-columns:34px 1fr;gap:.6rem;padding:.9rem 0;font-size:.84rem;line-height:1.35;text-decoration:none;display:grid}.dual-main .reading aside a b{color:var(--dual-teal)}.dual-main .chapter{padding:0 0 5rem;scroll-margin-top:100px}.dual-main .chapter h2{margin:.5rem 0 1.3rem;font-size:clamp(2rem,3vw,3.3rem)}.dual-main .chapter>p:not(.code){color:#35464b;font-size:1.04rem;line-height:1.9}.dual-main .handoff{border:1px solid var(--dual-line);background:#fff;margin-top:2rem}.dual-main .handoff [role=tablist]{grid-template-columns:repeat(3,1fr);margin:0;display:grid}.dual-main .handoff button{color:var(--dual-ink);border:0;border-right:1px solid var(--dual-line);text-align:left;cursor:pointer;background:#eee9df;padding:1rem}.dual-main .handoff button[aria-selected=true]{background:var(--dual-teal);color:#fff}.dual-main .handoff button i{font-size:.7rem;font-style:normal;display:block}.dual-main .role-detail{padding:2rem}.dual-main .role-detail span{color:var(--dual-warn);letter-spacing:.12em;text-transform:uppercase;font-size:.7rem}.dual-main .role-detail h3{margin:.5rem 0;font:1.9rem Georgia}.dual-main .role-detail p{line-height:1.7}.dual-main .table-wrap{border:1px solid var(--dual-line);background:#fff;margin-top:2rem;overflow:auto}.dual-main table{border-collapse:collapse;width:100%;min-width:660px}.dual-main caption{text-align:left;padding:1rem;font-weight:800}.dual-main th,.dual-main td{text-align:left;border-top:1px solid var(--dual-line);vertical-align:top;padding:1rem;line-height:1.5}.dual-main thead{background:var(--dual-ink);color:#fff}.dual-main .preflight{background:#e6eee9;padding:6rem clamp(1.2rem,7vw,8rem)}.dual-main .preflight h2{font-size:clamp(2rem,4vw,4rem)}.dual-main .preflight ol{grid-template-columns:repeat(4,1fr);gap:1rem;padding:0;list-style:none;display:grid}.dual-main .preflight li{background:var(--dual-white);padding:1.5rem}.dual-main .preflight li>b{color:var(--dual-warn);font:italic 1.5rem Georgia}.dual-main .preflight h3{font-size:1rem}.dual-main .preflight p{color:var(--dual-muted);font-size:.9rem;line-height:1.65}.dual-main .faq{grid-template-columns:.85fr 1.15fr;gap:5rem;padding:6rem clamp(1.2rem,7vw,8rem);display:grid}.dual-main .faq h2{font-size:3rem}.dual-main .faq dl{font-size:.85rem}.dual-main .faq dt{margin-top:1rem;font-weight:800}.dual-main .faq dd{color:var(--dual-muted);margin:.3rem 0;line-height:1.55}.dual-main details{border-top:1px solid var(--dual-line);padding:1.3rem 0}.dual-main summary{cursor:pointer;font-weight:800;line-height:1.4}.dual-main details p{color:var(--dual-muted);line-height:1.75}.dual-main .sources{background:var(--dual-ink);color:#fff;padding:4rem clamp(1.2rem,7vw,8rem)}.dual-main .sources ul{columns:2;padding:0;list-style:none}.dual-main .sources li{break-inside:avoid;padding:.55rem 0}.dual-main .sources a{color:#d9e7e7}.dual-main .sources p{color:#b9c9ca;font-size:.8rem}.dual-main :focus-visible{outline-offset:3px;outline:3px solid #f3a44a}.dual-main .article-image{margin:2rem 0 0}.dual-main .article-image picture,.dual-main .article-image img{width:100%;display:block}.dual-main .article-image img{aspect-ratio:8/5;object-fit:cover;border:1px solid var(--dual-line)}.dual-main .article-image--records img{aspect-ratio:3/2;object-position:center 48%}.dual-main .article-image figcaption{color:var(--dual-muted);margin-top:.65rem;font-size:.78rem;line-height:1.55}@media (width<=850px){.dual-main .route-card{margin:1.2rem}.dual-main .answer,.dual-main .reading,.dual-main .faq{grid-template-columns:1fr;gap:2rem}.dual-main .reading{padding:4rem 1.2rem}.dual-main .reading aside{position:static}.dual-main .preflight ol{grid-template-columns:1fr 1fr}.dual-main .sources ul{columns:1}}@media (width<=520px){.dual-main .route-card{box-shadow:8px 8px #0e6b6630}.dual-main .answer{padding:3.5rem 1.2rem}.dual-main .handoff [role=tablist]{grid-template-columns:1fr}.dual-main .handoff button{border-right:0;border-bottom:1px solid var(--dual-line)}.dual-main .preflight{padding:4rem 1.2rem}.dual-main .preflight ol{grid-template-columns:1fr}.dual-main .faq{padding:4rem 1.2rem}.dual-main .sources{padding:3rem 1.2rem}}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}@media (width<=767px){body.dual-clearance-page .le-bar{border-radius:16px;transform:translateY(8px);left:8px!important;right:4.75rem!important;bottom:calc(4.5rem + env(safe-area-inset-bottom,0px))!important;width:auto!important;max-width:none!important}body.dual-clearance-page .le-bar.is-shown{transform:none!important}body.dual-clearance-page .le-bar .le-btn{white-space:normal;overflow-wrap:anywhere;flex:1 1 0;justify-content:center;min-width:0;padding:.6rem .25rem}body.dual-clearance-page .tb-main{padding-bottom:calc(10rem + env(safe-area-inset-bottom,0px))}}@media (width<=420px){body.dual-clearance-page .le-bar{gap:2px!important;padding:5px!important;overflow:hidden!important}body.dual-clearance-page .le-bar .le-btn{gap:2px!important;padding:8px 4px!important;font-size:clamp(.62rem,2.7vw,.75rem)!important}body.dual-clearance-page .le-bar .le-btn__emoji{display:none!important}body.dual-clearance-page .le-bar .le-bar__close{flex:0 0 22px!important;padding:0 3px!important}}
