/* Methodology and privacy (d-): title block, sticky contents on the left, reading column on the right */
.d-hero{padding-bottom:clamp(48px,6vw,80px)}
.d-hg{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,.6fr);gap:clamp(28px,5vw,80px);align-items:end}
.d-hero .h1{font-size:clamp(44px,5.6vw,76px)}
.d-hero .lede{margin-bottom:0;max-width:52ch}
.d-meta{margin:0;display:flex;flex-direction:column}
.d-meta div{border-top:1px solid var(--line);padding:14px 0 16px}
.d-meta div:last-child{border-bottom:1px solid var(--line)}
.d-meta dt{font-size:14px;color:var(--muted);margin-bottom:3px}
.d-meta dd{margin:0;font:600 19px/1.35 var(--serif)}
.d-body{padding-top:clamp(48px,6vw,88px)}
.d-g{display:grid;grid-template-columns:240px minmax(0,1fr);gap:clamp(32px,6vw,96px);align-items:start}
.d-toc{position:sticky;top:112px}
.d-toc b{display:block;font-size:14px;font-weight:600;color:var(--ink);padding-bottom:12px;border-bottom:1px solid var(--line)}
.d-toc ol{list-style:none;margin:0;padding:0}
.d-toc a{display:flex;align-items:center;padding:10px 0;min-height:44px;box-sizing:border-box;font-size:15px;line-height:1.4;color:#5b6474;text-decoration:none;border-bottom:1px solid var(--line);transition:color .2s ease}
.d-toc a:hover{color:var(--ink)}
.d-toc a.on{color:var(--c);font-weight:500}
.d-art{max-width:680px;min-height:calc(100vh - 120px)}
@media (min-width:1061px){.d-art > .d-sec:last-child{min-height:430px}}
.d-sec{padding:34px 0 26px;border-top:1px solid var(--line);scroll-margin-top:100px}
.d-sec:first-child{border-top:0;padding-top:0}
.d-sec .h3{display:flex;gap:16px;align-items:baseline;font-size:clamp(25px,2.2vw,30px);margin-bottom:14px}
.d-sec .h3 .num{font-size:.62em;color:var(--c);min-width:28px}
.d-sec p{margin:0 0 14px;color:#3e4656;font-size:17px;line-height:1.7;padding-left:44px}
.d-sec a{color:var(--c)}
.d-sec b{color:var(--ink);font-weight:600}
.d-chart{margin:26px 0 8px 44px}
.d-c{display:block;width:100%;height:auto;overflow:visible;font-family:var(--sans)}
.d-cm{display:none}
.d-ar{fill:rgba(40,71,206,.09)}
.d-st line{stroke:rgba(40,71,206,.22);stroke-width:1}
.d-base{stroke:var(--line)}
.d-ln{fill:none;stroke:var(--c);stroke-linejoin:round;stroke-dasharray:1;stroke-dashoffset:1}
.d-mk{fill:var(--c)}
.d-v text{font-weight:600;fill:var(--ink);font-variant-numeric:lining-nums tabular-nums}
.d-x text{font-size:.9em;fill:#6b7383;font-variant-numeric:lining-nums tabular-nums}
.d-ar,.d-st,.d-mk,.d-v{opacity:0}
.d-chart.in-view .d-ln{stroke-dashoffset:0;transition:stroke-dashoffset 1s cubic-bezier(.3,.6,.2,1) .15s}
.d-chart.in-view .d-ar,.d-chart.in-view .d-st,.d-chart.in-view .d-mk,.d-chart.in-view .d-v{opacity:1;transition:opacity .4s ease .7s}
.d-chart figcaption{font-size:14px;line-height:1.5;color:var(--muted);margin-top:14px}
/* closing links: two plain blocks, each under a hairline (.rule-t); no tint, radius or shadow */
.d-next{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;margin:36px 0 0 44px}
.d-next a{display:flex;flex-direction:column;gap:6px;padding:18px 0 4px;min-height:44px;text-decoration:none;color:var(--ink)}
.d-next a:hover b{text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:1px}
.d-next b{font:600 21px/1.25 var(--serif);color:var(--c)}
.d-next span{font-size:14.5px;color:#4a5262}
@media (max-width:1060px){.d-hg{grid-template-columns:minmax(0,1fr);align-items:start}.d-g{grid-template-columns:minmax(0,1fr)}.d-toc{position:static}.d-toc ol{columns:2;column-gap:24px}.d-toc li{break-inside:avoid}}
@media (max-width:680px){.d-toc ol{columns:1}.d-sec p{padding-left:0}.d-chart,.d-next{margin-left:0}.d-next{grid-template-columns:minmax(0,1fr);gap:8px}.d-sec .h3{gap:12px}.d-sec .h3 .num{min-width:0}.d-cd{display:none}.d-cm{display:block;max-width:520px}}
@media (prefers-reduced-motion:reduce){.d-ln{stroke-dashoffset:0}.d-ar,.d-st,.d-mk,.d-v{opacity:1}.d-chart.in-view .d-ln,.d-chart.in-view .d-ar,.d-chart.in-view .d-st,.d-chart.in-view .d-mk,.d-chart.in-view .d-v{transition:none}}