:root{--ink:#162c3e;--muted:#566571;--copper:#94633d;--line:#d7dfe2;--paper:#fff;--wash:#f4f6f6;--soft:#eee5dc}*{box-sizing:border-box}html{scroll-behavior:auto}body{margin:0;background:var(--wash);color:var(--ink);font-family:"Segoe UI","Microsoft YaHei",sans-serif;font-size:18px;line-height:1.75}a{color:var(--ink);text-underline-offset:4px;text-decoration-thickness:1px}a:hover{color:var(--copper)}a:focus-visible{outline:2px solid var(--copper);outline-offset:5px}header{max-width:1120px;margin:auto;padding:22px 32px;display:flex;justify-content:space-between;align-items:center;gap:24px;border-bottom:1px solid var(--line)}.brand{font-family:Georgia,serif;font-size:24px;letter-spacing:-.6px;text-decoration:none;white-space:nowrap}.brand span{color:var(--copper)}nav{display:flex;flex-wrap:wrap;gap:22px;font-size:16px}nav a{display:inline-flex;min-height:44px;align-items:center}main{max-width:980px;margin:auto;padding:46px 32px 64px}h1{font-family:Georgia,"Microsoft YaHei",serif;font-weight:500;font-size:clamp(32px,4.3vw,46px);line-height:1.25;letter-spacing:-.7px;margin:0 0 22px;max-width:850px}h2{font-size:27px;font-weight:600;line-height:1.4;margin:0 0 22px}h3{font-size:20px;line-height:1.5;margin:0 0 12px}p{margin:0 0 17px;max-width:850px;text-wrap:pretty}.eyebrow{font-size:14px;letter-spacing:1.3px;text-transform:uppercase;color:var(--copper);font-weight:600;margin-bottom:14px}.hero{padding-bottom:36px;border-bottom:1px solid var(--line)}.result{font-size:22px;line-height:1.65;max-width:830px}.source,.small,.meta{font-size:16px;color:var(--muted);line-height:1.7}.source a{overflow-wrap:anywhere}.meta{margin-bottom:0}.actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}.button{display:inline-flex;min-height:46px;align-items:center;padding:8px 18px;text-decoration:none;border:1px solid var(--ink);border-radius:2px;font-size:16px}.button.primary{background:var(--ink);color:#fff}.button.primary:hover{background:var(--copper);border-color:var(--copper)}section{padding:34px 0;border-bottom:1px solid var(--line)}.table-wrap{overflow-x:auto;margin:20px 0}table{width:100%;border-collapse:collapse;text-align:left;font-size:16px;line-height:1.6}caption{text-align:left;font-size:16px;color:var(--muted);padding-bottom:12px}th{background:var(--ink);color:white;font-weight:600;line-height:1.5;padding:12px 14px}td{padding:13px 14px;border-bottom:1px solid var(--line);vertical-align:top;min-width:110px}tbody tr:nth-child(even){background:#fafafa}.num{white-space:nowrap;font-variant-numeric:tabular-nums}.boundary{padding:18px 22px;background:var(--soft);font-size:16px;line-height:1.8;max-width:850px}.findings{margin-top:28px}.coverage{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0 24px;margin:24px 0}.coverage div{padding:14px 0;border-top:1px solid var(--line)}dt{font-size:16px;color:var(--muted)}dd{font-size:28px;font-weight:500;font-variant-numeric:tabular-nums;margin:3px 0 0}.split{display:grid;grid-template-columns:1fr 1fr;gap:36px}.historical{padding-top:24px;margin-top:24px;border-top:1px solid var(--line)}footer{max-width:1120px;margin:auto;padding:24px 32px;font-size:16px;color:var(--muted)}@media(max-width:800px){main{padding-top:34px}.split{grid-template-columns:1fr;gap:18px}header{gap:16px;padding:16px 24px}.coverage{grid-template-columns:repeat(2,minmax(0,1fr))}main{padding-left:24px;padding-right:24px}.result{font-size:20px}}@media(max-width:520px){header{display:block;padding:14px 22px}nav{gap:20px;margin-top:8px}.brand{font-size:23px}main{padding:28px 22px 44px}h1{font-size:32px;letter-spacing:-.4px}h2{font-size:24px}.result{font-size:20px}section{padding:28px 0}.hero{padding-bottom:28px}.actions{gap:10px}.button{padding:8px 14px}.coverage{column-gap:18px}dt{font-size:15px}dd{font-size:26px}.boundary{padding:16px 18px}footer{padding:22px;font-size:15px}td,th{padding:11px 12px}td{min-width:120px}.source{font-size:15px}}@media print{body{background:#fff}header,footer,.actions{display:none}main{max-width:none;padding:0}.table-wrap{overflow:visible}section{break-inside:avoid}}
.mobile-caption,.scroll-hint{display:none}@media(max-width:520px){.mobile-caption{display:block;margin:20px 0 0;font-size:16px;line-height:1.7;color:var(--muted);overflow-wrap:normal}.scroll-hint{display:block;margin:8px 0 0;font-size:15px;line-height:1.7;color:var(--muted)}table caption{display:none}}

/* Research packages share the main site's established brand and reading rhythm. */
@font-face{font-family:Jakarta;src:url('/atlas/assets/brand/plus-jakarta-sans-latin-v1.woff2') format('woff2');font-display:swap}
:root{--ink:#17324f;--muted:#526376;--copper:#9b6c25;--line:#dce2e8;--wash:#f3f5f7;--soft:#f2f5f8}
body{font-family:Jakarta,'PingFang SC','Microsoft YaHei',sans-serif;font-size:16px}header{max-width:1208px;padding:24px 32px;min-height:80px}header nav{font-size:13px;gap:22px}main{max-width:1144px;padding-top:44px}h1{font-family:inherit;font-weight:500;font-size:clamp(32px,4vw,46px);line-height:1.35;max-width:880px;letter-spacing:-.035em}h2{font-size:25px}h3{font-size:18px}.result{font-size:18px;max-width:780px}.eyebrow{font-size:11px;letter-spacing:.14em}.meta,.small,.source{font-size:13px}.hero{padding:18px 0 40px}.hero .meta{max-width:72ch}.pack-workflow ol{list-style:none;counter-reset:work;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:36px;padding:0;margin:26px 0 0}.pack-workflow li{counter-increment:work;padding-top:16px;border-top:1px solid var(--line)}.pack-workflow li:before{content:'0' counter(work);font-size:12px;color:var(--copper);display:block;margin-bottom:12px}.pack-workflow p{font-size:14px;color:var(--muted);line-height:1.85}.pack-catalogue>p{font-size:14px;color:var(--muted);max-width:76ch}.pack-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 32px;margin:26px 0 30px}.pack-item{display:flex;justify-content:space-between;align-items:center;padding:22px 0;border-bottom:1px solid var(--line);text-decoration:none;gap:20px}.pack-item strong{font-size:22px;font-weight:500;display:block}.pack-item small{font-size:12px;color:var(--muted);display:block;margin-top:6px}.pack-item>span:last-child{color:var(--copper)}.pack-item:hover strong{text-decoration:underline;text-underline-offset:5px}.pack-combined{display:grid;grid-template-columns:1fr auto;gap:36px;padding:26px 30px;background:#fff;border:1px solid var(--line);border-top:2px solid var(--copper);align-items:center}.pack-combined p{font-size:14px;color:var(--muted);margin:0}.pack-combined-count{font-size:40px;line-height:1.1;text-align:right;font-variant-numeric:tabular-nums}.pack-combined-count small{display:block;font-size:11px;color:var(--muted);margin-top:10px}.pack-back{font-size:12px;margin-bottom:20px}.coverage{grid-template-columns:repeat(3,minmax(0,1fr))}dt{font-size:13px}dd{font-size:30px}.boundary{font-size:13px}.split p{font-size:14px}section{padding:36px 0}.button{font-size:14px;min-height:46px}.table-wrap table{font-size:14px}footer{font-size:12px}
@media(max-width:768px){.pack-workflow ol{gap:22px}.pack-grid{column-gap:24px}.pack-combined{padding:24px;gap:24px}}
@media(max-width:600px){header{padding:22px;display:block}header nav{margin-top:18px;gap:16px;font-size:12px}main{padding:28px 22px 44px}.hero{padding:10px 0 30px}.result{font-size:16px}h1{font-size:33px}h2{font-size:23px}.pack-workflow ol{grid-template-columns:1fr;gap:12px}.pack-workflow li{padding-top:15px;display:grid;grid-template-columns:28px 1fr;gap:0 12px}.pack-workflow li:before{grid-row:1/3;margin-top:4px}.pack-workflow li p{grid-column:2}.pack-grid{grid-template-columns:1fr;gap:0}.pack-item{padding:20px 0}.pack-combined{grid-template-columns:1fr;padding:22px;gap:20px}.pack-combined-count{text-align:left;font-size:34px}.coverage{grid-template-columns:repeat(2,minmax(0,1fr))}}