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@media(max-width:48rem){#jd-ppc-buyer-guide .shell,#jd-ppc-buyer-guide .hero-grid.shell{width:calc(100% - 2.5rem)}#jd-ppc-buyer-guide .site-header{height:4.6rem}#jd-ppc-buyer-guide .header-inner{width:calc(100% - 2.5rem)}#jd-ppc-buyer-guide .brand img{width:9.7rem}#jd-ppc-buyer-guide .work-link{display:none}#jd-ppc-buyer-guide .header-cta{display:none}#jd-ppc-buyer-guide .hero{padding:3.4rem 0 3rem}#jd-ppc-buyer-guide .hero-grid{grid-template-columns:1fr;gap:2rem}#jd-ppc-buyer-guide .hero-map{margin-right:.65rem}#jd-ppc-buyer-guide .mobile-toc{display:block;margin-top:1.5rem}#jd-ppc-buyer-guide .mobile-toc details{border:1px solid var(--line)}#jd-ppc-buyer-guide .mobile-toc summary{list-style:none;padding:.8rem 1rem;font-size:.82rem;font-weight:700;display:flex;justify-content:space-between;cursor:pointer}#jd-ppc-buyer-guide .mobile-toc summary::-webkit-details-marker{display:none}#jd-ppc-buyer-guide .mobile-toc nav{padding:0 1rem .8rem}#jd-ppc-buyer-guide .mobile-toc a{display:block;border-top:1px solid var(--line);padding:.65rem 0;color:var(--muted);font-size:.78rem;text-decoration:none}#jd-ppc-buyer-guide .reading-grid{display:block;padding:3rem 0 5rem}#jd-ppc-buyer-guide .toc{display:none}#jd-ppc-buyer-guide .prose{font-size:1rem}#jd-ppc-buyer-guide .prose section+section{margin-top:4rem}#jd-ppc-buyer-guide .tool-heading{display:block}#jd-ppc-buyer-guide .tool-heading output,#jd-ppc-buyer-guide .local-badge{display:inline-block;margin-top:.8rem}#jd-ppc-buyer-guide .calc-inputs{grid-template-columns:1fr}#jd-ppc-buyer-guide .calc-group:last-child{grid-column:auto}#jd-ppc-buyer-guide .invitation{display:block}#jd-ppc-buyer-guide .invitation .button{margin-top:1rem}#jd-ppc-buyer-guide .responsibility-grid{grid-template-columns:1fr}#jd-ppc-buyer-guide .decision-rules{grid-template-columns:1fr 1fr}#jd-ppc-buyer-guide .score-head{display:none}#jd-ppc-buyer-guide .score-row{grid-template-columns:1fr 4.5rem}#jd-ppc-buyer-guide .score-row label{grid-column:1/-1}#jd-ppc-buyer-guide .score-row select{grid-column:1/-1}#jd-ppc-buyer-guide .proof-card ol{columns:1}#jd-ppc-buyer-guide footer .shell{display:block;padding:1.7rem 0}#jd-ppc-buyer-guide footer p{margin-top:1rem}}
@media(max-width:25rem){#jd-ppc-buyer-guide .shell,#jd-ppc-buyer-guide .header-inner{width:calc(100% - 2rem)}#jd-ppc-buyer-guide h1{font-size:2.65rem}#jd-ppc-buyer-guide .hero-map{padding:1.1rem}#jd-ppc-buyer-guide .calc-results{grid-template-columns:1fr}#jd-ppc-buyer-guide .calc-results>div{border-right:0;border-bottom:1px solid var(--line)}#jd-ppc-buyer-guide .decision-rules{grid-template-columns:1fr}#jd-ppc-buyer-guide .score-row{grid-template-columns:1fr}#jd-ppc-buyer-guide .score-row input,#jd-ppc-buyer-guide .score-row select{grid-column:auto}#jd-ppc-buyer-guide .calculator,#jd-ppc-buyer-guide .tool-card,#jd-ppc-buyer-guide .scorecard,#jd-ppc-buyer-guide .control-checks{padding:1rem}}
@media(prefers-reduced-motion:reduce){#jd-ppc-buyer-guide{scroll-behavior:auto}#jd-ppc-buyer-guide *{transition:none!important}}
@media print{#jd-ppc-buyer-guide .site-header,#jd-ppc-buyer-guide .mobile-toc,#jd-ppc-buyer-guide .toc,#jd-ppc-buyer-guide .hero-actions,#jd-ppc-buyer-guide .toc-tools,#jd-ppc-buyer-guide .button,#jd-ppc-buyer-guide footer{display:none!important}#jd-ppc-buyer-guide .hero{background:#fff;color:#000;padding:0 0 1.5rem;border-bottom:2px solid #000}#jd-ppc-buyer-guide .hero .kicker,#jd-ppc-buyer-guide .map-label{color:#000}#jd-ppc-buyer-guide .hero-copy>p:not(.kicker):not(.standfirst):not(.disclosure),#jd-ppc-buyer-guide .disclosure{color:#333}#jd-ppc-buyer-guide .hero-grid{display:block}#jd-ppc-buyer-guide .hero-map{border-color:#999;margin-top:1rem}#jd-ppc-buyer-guide .hero-map:after{display:none}#jd-ppc-buyer-guide .hero-map li{border-color:#ccc}#jd-ppc-buyer-guide .hero-map li>span,#jd-ppc-buyer-guide .hero-map small{color:#333}#jd-ppc-buyer-guide .reading-grid{display:block;width:100%;padding:1.5rem 0}#jd-ppc-buyer-guide .prose section+section{margin-top:2.5rem;break-before:page}#jd-ppc-buyer-guide .tool-card,#jd-ppc-buyer-guide .calculator,#jd-ppc-buyer-guide .scorecard,#jd-ppc-buyer-guide .control-checks{break-inside:avoid;background:#fff;color:#000;border:1px solid #777}#jd-ppc-buyer-guide .calc-group{border-color:#999}#jd-ppc-buyer-guide .calc-group label{border-color:#ddd}#jd-ppc-buyer-guide .calc-results{border:1px solid #999}#jd-ppc-buyer-guide .calculator .tool-note,#jd-ppc-buyer-guide .cohort-line{color:#333}#jd-ppc-buyer-guide .worksheet-scroll{overflow:visible}#jd-ppc-buyer-guide .worksheet-table{min-width:0;font-size:7pt}#jd-ppc-buyer-guide .worksheet-table textarea{min-height:2.2rem}#jd-ppc-buyer-guide .decision-flow,#jd-ppc-buyer-guide .proof-card{background:#fff;color:#000;border:1px solid #777}#jd-ppc-buyer-guide .proof-card h3{color:#000}#jd-ppc-buyer-guide .proof-card .tool-kicker{color:#333}}

@media screen{
  #jd-ppc-buyer-guide .worksheet-table{ min-width: 88rem; }
  #jd-ppc-buyer-guide .score-head span:last-child{ display: none; }
  #jd-ppc-buyer-guide .score-row textarea{
    grid-column: 1 / -1;
    width: 100%;
    min-height: 3.4rem;
    border: 1px solid #9eb2b6;
    background: #fff;
    padding: .5rem;
    resize: vertical;
  }
}

/* Production theme isolation: the shared site chrome stays outside this article root. */
#jd-ppc-buyer-guide{margin:0;background:#fff;color:var(--ink);font:400 1rem/1.74 Vietnam,Arial,sans-serif;font-synthesis:none;overflow:visible}
#jd-ppc-buyer-guide :where(h1,h2,h3,p,li,table,th,td,label,input,select,textarea,button,a){font-family:inherit}
#jd-ppc-buyer-guide :where(p,li,a){font-size:inherit;line-height:inherit}
#jd-ppc-buyer-guide h1{font-size:clamp(3rem,5.6vw,5.1rem)!important;line-height:.98!important;font-weight:600!important;text-transform:none!important;color:#fff!important}
#jd-ppc-buyer-guide .prose h2{font-size:clamp(2rem,3.2vw,2.8rem)!important;line-height:1.15!important;font-weight:600!important;text-transform:none!important}
#jd-ppc-buyer-guide .prose h3,#jd-ppc-buyer-guide .tool-heading h3,#jd-ppc-buyer-guide .proof-card h3,#jd-ppc-buyer-guide .responsibility-grid h3,#jd-ppc-buyer-guide .control-checks h3{font-size:1.45rem!important;line-height:1.35!important;font-weight:600!important;text-transform:none!important}
#jd-ppc-buyer-guide .prose :where(ol,ul){margin:1em 0;padding-left:1.4rem}
#jd-ppc-buyer-guide .prose :where(p,li) a:not(.button){font-size:inherit!important;line-height:inherit!important;font-weight:inherit!important;margin:0!important}
#jd-ppc-buyer-guide .button{margin:0!important}
#jd-ppc-buyer-guide blockquote{width:auto!important;padding:0!important}
#jd-ppc-buyer-guide .toc{box-shadow:none!important;border-radius:0!important}
#jd-ppc-buyer-guide [hidden]{display:none!important}
body .assistant-cta-container,body #hs-overlay-cta-167350381680{display:none!important}
@media(max-width:48rem){
  #jd-ppc-buyer-guide .mobile-tools{display:grid;grid-template-columns:1fr 1fr;gap:.5rem;margin-top:.75rem}
  #jd-ppc-buyer-guide .mobile-tools span{grid-column:1/-1}
  #jd-ppc-buyer-guide .mobile-tools button{text-align:center}
}
@media(max-width:25rem){
  #jd-ppc-buyer-guide .mobile-tools{grid-template-columns:1fr}
  #jd-ppc-buyer-guide .mobile-tools span{grid-column:auto}
}
@media(max-width:25rem){#jd-ppc-buyer-guide h1{font-size:2.65rem!important}}

/* Repair: keep the generated guide navigation vertical and readable inside theme nav rules. */
#jd-ppc-buyer-guide .toc{max-height:none!important;overflow:visible!important;padding-right:0}
#jd-ppc-buyer-guide .toc nav[data-toc],
#jd-ppc-buyer-guide .mobile-toc nav[data-toc-mobile]{display:block!important;width:100%!important;max-width:none!important;overflow:visible!important;margin:0!important}
#jd-ppc-buyer-guide .toc nav[data-toc] a{display:grid!important;grid-template-columns:1.6rem minmax(0,1fr)!important;width:100%!important;max-width:none!important;float:none!important;white-space:normal!important;margin:0!important}
#jd-ppc-buyer-guide .mobile-toc nav[data-toc-mobile] a{display:grid!important;grid-template-columns:1.6rem minmax(0,1fr)!important;gap:.55rem!important;width:100%!important;max-width:none!important;float:none!important;white-space:normal!important;margin:0!important}
#jd-ppc-buyer-guide .mobile-toc a[aria-current="location"]{color:var(--navy);font-weight:700;border-top-color:#20a2a7}
#jd-ppc-buyer-guide .mobile-toc summary>span{width:1rem;font-size:0;text-align:center}
#jd-ppc-buyer-guide .mobile-toc summary>span::before{content:"+";font-size:1rem;line-height:1}
#jd-ppc-buyer-guide .mobile-toc details[open] summary>span::before{content:"−"}

/* Repair: useful column widths and an explicit affordance only when a table overflows. */
#jd-ppc-buyer-guide .scroll-cue{margin:1.6rem 0 .45rem!important;color:var(--muted);font-size:.78rem!important;font-weight:700;line-height:1.4!important}
#jd-ppc-buyer-guide .scroll-cue::before{content:"↔";display:inline-block;margin-right:.45rem;color:#007f84}
#jd-ppc-buyer-guide .table-scroll,
#jd-ppc-buyer-guide .worksheet-scroll{max-width:100%;overflow-x:auto;overflow-y:hidden;overscroll-behavior-inline:contain;scrollbar-gutter:stable;-webkit-overflow-scrolling:touch;padding-bottom:.35rem}
#jd-ppc-buyer-guide .table-scroll table{min-width:0;table-layout:auto}
#jd-ppc-buyer-guide .table-scroll.columns-8 table{min-width:92rem;table-layout:fixed}
#jd-ppc-buyer-guide .table-scroll.columns-8 th:nth-child(1){width:12rem}
#jd-ppc-buyer-guide .table-scroll.columns-8 th:nth-child(2),
#jd-ppc-buyer-guide .table-scroll.columns-8 th:nth-child(3){width:14rem}
#jd-ppc-buyer-guide .table-scroll.columns-8 th:nth-child(4),
#jd-ppc-buyer-guide .table-scroll.columns-8 th:nth-child(5),
#jd-ppc-buyer-guide .table-scroll.columns-8 th:nth-child(6){width:8rem}
#jd-ppc-buyer-guide .table-scroll.columns-8 th:nth-child(7){width:13rem}
#jd-ppc-buyer-guide .table-scroll.columns-8 th:nth-child(8){width:15rem}
#jd-ppc-buyer-guide .table-scroll.columns-6 table{min-width:76rem;table-layout:fixed}
#jd-ppc-buyer-guide .table-scroll.columns-6 th:nth-child(1){width:15rem}
#jd-ppc-buyer-guide .table-scroll.columns-6 th:nth-child(2){width:6rem}
#jd-ppc-buyer-guide .table-scroll.columns-6 th:nth-child(3){width:24rem}
#jd-ppc-buyer-guide .table-scroll.columns-6 th:nth-child(4){width:8rem}
#jd-ppc-buyer-guide .table-scroll.columns-6 th:nth-child(5){width:9rem}
#jd-ppc-buyer-guide .table-scroll.columns-6 th:nth-child(6){width:14rem}
#jd-ppc-buyer-guide .table-scroll:is(.columns-6,.columns-8) :is(th,td):first-child,
#jd-ppc-buyer-guide .worksheet-table :is(th,td):first-child{position:sticky;left:0;z-index:2;background:#fff;box-shadow:1px 0 0 var(--line)}
#jd-ppc-buyer-guide .table-scroll:is(.columns-6,.columns-8) thead th:first-child,
#jd-ppc-buyer-guide .worksheet-table thead th:first-child{z-index:4;background:var(--navy)}
#jd-ppc-buyer-guide .table-scroll:is(.columns-6,.columns-8) tbody tr:nth-child(even) td:first-child{background:#f3f7f6}
#jd-ppc-buyer-guide .worksheet-table tbody th:first-child{min-width:8rem;background:#e4eeee}
#jd-ppc-buyer-guide .calc-inputs>*{min-width:0}
#jd-ppc-buyer-guide .calc-group label{grid-template-columns:minmax(0,1fr) auto 5.5rem}
#jd-ppc-buyer-guide .calc-group label>*{min-width:0}

@media screen and (max-width:48rem){
  #jd-ppc-buyer-guide .table-scroll.is-enhanced{overflow:visible!important;border:0;background:transparent;padding:0}
  #jd-ppc-buyer-guide .table-scroll.is-enhanced table,
  #jd-ppc-buyer-guide .table-scroll.is-enhanced tbody,
  #jd-ppc-buyer-guide .table-scroll.is-enhanced tr{display:block;width:100%;min-width:0}
  #jd-ppc-buyer-guide .table-scroll.is-enhanced thead{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
  #jd-ppc-buyer-guide .table-scroll.is-enhanced tbody tr{margin:0 0 1rem;border:1px solid var(--line);background:#fff!important}
  #jd-ppc-buyer-guide .table-scroll.is-enhanced tbody :is(th,td){position:static!important;display:grid;grid-template-columns:minmax(7.25rem,38%) minmax(0,1fr);gap:.8rem;width:100%;min-width:0;min-height:2.8rem;padding:.75rem .8rem;border:0;border-bottom:1px solid var(--line);background:#fff!important;box-shadow:none!important;text-align:left!important;overflow-wrap:anywhere}
  #jd-ppc-buyer-guide .table-scroll.is-enhanced tbody :is(th,td)::before{content:attr(data-label);color:var(--muted);font-size:.72rem;line-height:1.35;font-weight:700;text-transform:uppercase;letter-spacing:.035em}
  #jd-ppc-buyer-guide .table-scroll.is-enhanced tbody :is(th,td):empty::after{content:"—";color:#7b8d92}
  #jd-ppc-buyer-guide .table-scroll.is-enhanced tbody :is(th,td):last-child{border-bottom:0}
  #jd-ppc-buyer-guide .table-scroll.is-enhanced + .scroll-cue,
  #jd-ppc-buyer-guide .table-scroll.is-enhanced ~ .scroll-cue{display:none}
  #jd-ppc-buyer-guide .worksheet-table thead th:first-child,
  #jd-ppc-buyer-guide .worksheet-table tbody th:first-child{width:7rem;min-width:7rem;max-width:7rem}
}

@media screen and (max-width:25rem){
  #jd-ppc-buyer-guide .table-scroll.is-enhanced tbody :is(th,td){grid-template-columns:1fr;gap:.35rem}
  #jd-ppc-buyer-guide .calc-group label{grid-template-columns:minmax(0,1fr) auto 4.8rem}
  #jd-ppc-buyer-guide .calc-group label>*{min-width:0}
  #jd-ppc-buyer-guide .calc-group input{width:4.8rem;max-width:100%}
}