._page_18w4q_1{--background:#f6f7f9;--surface:#fff;--surface-muted:#f8fafc;--text:#17202a;--text-muted:#697586;--border:#dfe3e8;--border-soft:#edf0f2;--link:#145f91;--link-hover:#0b466f;--accent:#1f587d;background:var(--background);min-height:100vh;color:var(--text);font-family:Arial,PingFang SC,Microsoft YaHei,sans-serif;overflow:hidden}._siteFooterBand_18w4q_19{color:#f0f2f7;background:#080b12;margin-top:72px}._siteFooterShell_18w4q_25{width:min(1280px,100% - 64px);margin:0 auto}._shell_18w4q_30,._articleShell_18w4q_31{width:min(1160px,100% - 40px);margin:0 auto}._hero_18w4q_36{border:1px solid var(--border);background:var(--surface);border-radius:10px;margin-top:22px;overflow:hidden;box-shadow:0 1px 2px #18232e0a,0 10px 34px #18232e0b}._indexHeading_18w4q_45,._storyTopline_18w4q_46,._storyFooter_18w4q_47{justify-content:space-between;align-items:center;display:flex}._eyebrow_18w4q_53,._sectionLabel_18w4q_54{color:var(--text-muted);letter-spacing:.06em;text-transform:uppercase;margin:0;font-size:.7rem;font-weight:700}._boardIdentity_18w4q_63{grid-template-columns:48px minmax(0,1fr) auto;align-items:center;gap:16px;padding:22px 24px;display:grid}._boardMark_18w4q_71{color:#fff;letter-spacing:.07em;background:linear-gradient(145deg,#276b96,#163e5a);border-radius:12px;place-items:center;width:48px;height:48px;font-size:.8rem;font-weight:760;display:grid;box-shadow:inset 0 1px #ffffff3d}._boardTitle_18w4q_85 h1{letter-spacing:-.025em;margin:0;font-size:1.38rem;font-weight:720;line-height:1.2}._boardTitle_18w4q_85 ._eyebrow_18w4q_53{margin-bottom:3px;font-size:.58rem}._boardTitle_18w4q_85>p:last-child{color:var(--text-muted);margin:4px 0 0;font-size:.76rem}._boardStatus_18w4q_104{color:#3e694a;background:#f4fbf6;border:1px solid #cfe1d5;border-radius:999px;align-items:center;gap:7px;padding:6px 10px;font-size:.66rem;font-weight:650;display:inline-flex}._boardStatus_18w4q_104>span{background:#4f9b65;border-radius:50%;width:6px;height:6px}._boardStatus_18w4q_104[data-preview=true]{color:#765e22;background:#fffbef;border-color:#ead9a9}._boardStatus_18w4q_104[data-preview=true]>span{background:#d7a11f}._boardOverview_18w4q_134{border-top:1px solid var(--border-soft);justify-content:space-between;align-items:center;gap:30px;padding:17px 24px;display:flex}._boardOverview_18w4q_134>p{max-width:620px;color:var(--text-muted);margin:0;font-size:.78rem;line-height:1.55}._publicationStats_18w4q_151{flex:none;gap:22px;margin:0;display:flex}._publicationStats_18w4q_151 div{align-items:baseline;gap:7px;display:flex}._publicationStats_18w4q_151 dt{font-size:.9rem;font-weight:700}._publicationStats_18w4q_151 dd{color:var(--text-muted);margin:0;font-size:.67rem}._coverageGrid_18w4q_175{border-top:1px solid var(--border-soft);background:#fbfcfd;grid-template-columns:1.2fr .85fr .85fr 1.7fr;display:grid}._coverageGrid_18w4q_175>div{gap:6px;min-width:0;padding:14px 18px;display:grid}._coverageGrid_18w4q_175>div+div{border-left:1px solid var(--border-soft)}._coverageGrid_18w4q_175 span{color:#89939f;letter-spacing:.05em;text-transform:uppercase;font-size:.58rem;font-weight:700}._coverageGrid_18w4q_175 strong{text-overflow:ellipsis;white-space:nowrap;font-size:.72rem;font-weight:650;overflow:hidden}._topicCell_18w4q_209 ul{gap:5px;min-width:0;margin:0;padding:0;list-style:none;display:flex;overflow:hidden}._topicCell_18w4q_209 li{color:#44677d;white-space:nowrap;background:#f2f7fa;border:1px solid #dbe6ed;border-radius:4px;padding:2px 6px;font-size:.62rem}._previewBanner_18w4q_229{color:#6d5417;background:#fff8df;border:1px solid #e4c57b;border-radius:4px;align-items:center;gap:9px;margin:10px 0 0;padding:10px 12px;font-size:.76rem;line-height:1.45;display:flex}._previewBadge_18w4q_243{color:#fff;letter-spacing:.04em;text-transform:uppercase;background:#e8a800;border-radius:3px;width:fit-content;padding:3px 7px;font-size:.61rem;font-weight:700;display:inline-flex}._indexList_18w4q_256{padding-top:18px}._indexHeading_18w4q_45{margin-bottom:8px;padding:0 2px}._indexHeading_18w4q_45>span{color:var(--text-muted);font-size:.68rem}._boardLayout_18w4q_270{grid-template-columns:minmax(0,1fr) 286px;align-items:start;gap:14px;display:grid}._storyGrid_18w4q_277{gap:8px;display:grid}._indexItem_18w4q_282{border:1px solid var(--border);background:var(--surface);border-radius:8px;grid-template-columns:64px minmax(0,1fr);min-width:0;transition:border-color .16s,box-shadow .16s,transform .16s;display:grid;position:relative;overflow:hidden;box-shadow:0 1px 2px #18232e06}._indexItem_18w4q_282:hover{border-color:#bdc7ce;transform:translateY(-1px);box-shadow:0 7px 22px #18232e11}._storyIndex_18w4q_301{border-right:1px solid var(--border-soft);color:var(--text-muted);background:#fafbfd;flex-direction:column;align-items:center;padding:18px 7px;display:flex}._storyIndex_18w4q_301 strong{width:32px;height:32px;color:var(--text);background:#fff;border:1px solid #dbe2e7;border-radius:50%;place-items:center;font-size:.74rem;display:grid}._storyIndex_18w4q_301 small{text-transform:uppercase;margin-top:5px;font-size:.58rem}._storyMain_18w4q_329{min-width:0;padding:15px 17px 14px}._storyTopline_18w4q_46{color:var(--text-muted);gap:18px;font-size:.64rem}._storyContent_18w4q_340{flex-direction:column;align-items:flex-start;padding:10px 0 13px;display:flex}._storyContent_18w4q_340>time{color:var(--text-muted);font-size:.66rem}._indexItem_18w4q_282 h2{letter-spacing:-.018em;margin:7px 0 0;font-size:clamp(1.02rem,1.8vw,1.24rem);font-weight:680;line-height:1.28}._indexItem_18w4q_282 h2 a,._readLink_18w4q_361,._related_18w4q_362 a,._back_18w4q_363,._articleRail_18w4q_364 a{color:inherit;text-decoration:none}._indexItem_18w4q_282 h2 a:after{content:"";position:absolute;inset:0}._indexItem_18w4q_282 h2 a:focus-visible:after{outline:2px solid var(--link);outline-offset:-3px}._storyContent_18w4q_340>p{max-width:680px;color:var(--text-muted);margin:7px 0 0;font-size:.78rem;line-height:1.5}._storyFooter_18w4q_47{border-top:1px solid var(--border-soft);gap:16px;padding-top:9px}._tags_18w4q_394{flex-wrap:wrap;gap:5px;min-width:0;margin:0;padding:0;list-style:none;display:flex}._tags_18w4q_394 li{color:#42647b;background:#edf3f7;border-radius:3px;padding:3px 6px;font-size:.62rem;line-height:1.2}._tags_18w4q_394 li:last-child{color:var(--text-muted);background:0 0}._readLink_18w4q_361{z-index:1;color:var(--link);flex:none;font-size:.68rem;font-weight:700;position:relative}._readLink_18w4q_361:hover{color:var(--link-hover);text-decoration:underline}._boardSidebar_18w4q_432{gap:12px;display:grid;position:sticky;top:12px}._boardSidebar_18w4q_432 section{border:1px solid var(--border);background:var(--surface);border-radius:8px;padding:17px;overflow:hidden;box-shadow:0 1px 2px #18232e06}._boardSidebar_18w4q_432 h3{border-bottom:1px solid var(--border-soft);color:var(--text);margin:0 0 11px;padding:0 0 10px;font-size:.76rem;font-weight:720}._boardSidebar_18w4q_432 p{color:var(--text-muted);margin:0;font-size:.74rem;line-height:1.55}._boardSidebar_18w4q_432 dl{border-top:1px solid var(--border-soft);grid-template-columns:repeat(3,1fr);gap:8px;margin:16px 0 0;padding-top:13px;display:grid}._boardSidebar_18w4q_432 dl div{flex-direction:column-reverse;display:flex}._boardSidebar_18w4q_432 dt{color:var(--text-muted);margin-top:3px;font-size:.57rem}._boardSidebar_18w4q_432 dd{margin:0;font-size:.92rem;font-weight:700}._boardSidebar_18w4q_432 ._boardNotice_18w4q_490{border-top:3px solid #8c99a3}._articleHeader_18w4q_494{border:1px solid var(--border);background:var(--surface);border-radius:10px;margin-top:22px;padding:24px 28px 28px;box-shadow:0 1px 2px #18232e09,0 8px 28px #18232e09}._back_18w4q_363{color:var(--link);margin-bottom:24px;font-size:.73rem;font-weight:600;display:inline-block}._back_18w4q_363:hover{color:var(--link-hover);text-decoration:underline}._articleHeader_18w4q_494 ._previewBanner_18w4q_229{margin:-8px 0 20px}._articleHeaderGrid_18w4q_520{grid-template-columns:minmax(0,1fr) 260px;align-items:start;gap:44px;display:grid}._articleHeadline_18w4q_527 ._eyebrow_18w4q_53{margin-bottom:10px}._articleHeader_18w4q_494 h1{letter-spacing:-.04em;max-width:760px;margin:0;font-size:clamp(2rem,4vw,3.35rem);font-weight:680;line-height:1.08}._description_18w4q_540{max-width:720px;color:var(--text-muted);margin:18px 0 0;font-size:.96rem;line-height:1.62}._articleMetaPanel_18w4q_548{border:1px solid var(--border);background:var(--surface-muted);border-radius:7px;padding:13px}._metaIndex_18w4q_555{align-items:baseline;gap:6px;margin:0 0 11px;font-size:1.25rem;font-weight:700;display:flex}._metaIndex_18w4q_555 span{color:var(--text-muted);font-size:.63rem;font-weight:400}._articleMeta_18w4q_548,._methodology_18w4q_571 dl{gap:0;margin:0;display:grid}._articleMeta_18w4q_548 div,._methodology_18w4q_571 dl div{border-top:1px solid var(--border-soft);grid-template-columns:82px 1fr;gap:9px;padding:8px 0;display:grid}._articleMeta_18w4q_548 dt,._methodology_18w4q_571 dt{color:var(--text-muted);font-size:.62rem;line-height:1.4}._articleMeta_18w4q_548 dd,._methodology_18w4q_571 dd{margin:0;font-size:.72rem;line-height:1.45}._articleLayout_18w4q_600{grid-template-columns:180px minmax(0,1fr);align-items:start;gap:14px;margin-top:14px;display:grid}._articleRail_18w4q_364{border:1px solid var(--border);background:var(--surface);border-radius:8px;padding:13px;font-size:.7rem;position:sticky;top:12px;box-shadow:0 1px 2px #18232e06}._articleRail_18w4q_364>p{color:var(--text-muted);text-transform:uppercase;margin:0 0 8px;font-weight:700}._articleRail_18w4q_364 nav{display:grid}._articleRail_18w4q_364 a{border-top:1px solid var(--border-soft);color:var(--link);padding:8px 0;line-height:1.35}._articleRail_18w4q_364 a:hover{color:var(--link-hover);text-decoration:underline}._articleBody_18w4q_642{border:1px solid var(--border);background:var(--surface);color:#30363a;border-radius:10px;min-width:0;padding:clamp(24px,4vw,48px);font-size:1rem;line-height:1.82;box-shadow:0 1px 2px #18232e06}._articleBody_18w4q_642 h2,._articleBody_18w4q_642 h3,._evidence_18w4q_656 h2,._methodology_18w4q_571 h2,._related_18w4q_362 h2,._articlePage_18w4q_659 .research-deep-dive-slot h2{color:var(--text);letter-spacing:-.025em;font-weight:680}._articleBody_18w4q_642 h2{border-bottom:1px solid var(--border);margin:50px 0 17px;padding-bottom:9px;font-size:clamp(1.35rem,2.5vw,1.8rem)}._articleBody_18w4q_642 h2:first-child{margin-top:0}._articleBody_18w4q_642 h3{margin:34px 0 13px;font-size:1.12rem}._articleBody_18w4q_642 p,._articleBody_18w4q_642 ul{margin:0 0 20px}._articleBody_18w4q_642 ul{padding-left:1.25em}._articleBody_18w4q_642 li+li{margin-top:7px}._articleBody_18w4q_642 a{color:var(--link);text-underline-offset:.18em}._articleBody_18w4q_642 .research-table-scroll,._tableScroll_18w4q_700{border:1px solid var(--border);border-radius:4px;margin:26px 0;overflow-x:auto}._articleBody_18w4q_642 table,._evidence_18w4q_656 table{border-collapse:collapse;width:100%;min-width:660px;font-size:.76rem;line-height:1.45}._articleBody_18w4q_642 th,._articleBody_18w4q_642 td,._evidence_18w4q_656 th,._evidence_18w4q_656 td{border-bottom:1px solid var(--border-soft);text-align:left;vertical-align:top;padding:10px 11px}._articleBody_18w4q_642 th,._evidence_18w4q_656 th{background:var(--surface-muted);font-weight:700}._evidence_18w4q_656,._methodology_18w4q_571,._articlePage_18w4q_659 .research-deep-dive-slot,._related_18w4q_362{border:1px solid var(--border);background:var(--surface);border-radius:10px;margin:14px 0;padding:clamp(24px,4vw,38px);box-shadow:0 1px 2px #18232e06}._evidence_18w4q_656 h2,._methodology_18w4q_571 h2,._articlePage_18w4q_659 .research-deep-dive-slot h2,._related_18w4q_362 h2{margin:8px 0 11px;font-size:clamp(1.45rem,3vw,2rem)}._evidence_18w4q_656>p:not(._eyebrow_18w4q_53),._methodology_18w4q_571>p:not(._eyebrow_18w4q_53),._articlePage_18w4q_659 .research-deep-dive-slot>p:not(.research-eyebrow){max-width:780px;color:var(--text-muted);margin-top:0;font-size:.83rem;line-height:1.62}._findings_18w4q_762{border-top:1px solid var(--border);gap:0;margin:22px 0;padding:0;list-style:none;display:grid}._findings_18w4q_762 li{border-bottom:1px solid var(--border);grid-template-columns:1fr 130px;gap:20px;padding:12px 0;font-size:.82rem;line-height:1.55;display:grid}._findings_18w4q_762 small{color:var(--text-muted);text-align:right;font-size:.67rem}._empty_18w4q_787{border:1px solid var(--border);background:var(--surface-muted);color:var(--text-muted);border-radius:4px;margin:18px 0 0;padding:13px;font-size:.8rem;line-height:1.55}._evidenceAppendix_18w4q_798{border-top:1px solid var(--border);margin-top:20px;padding-top:17px}._evidenceAppendix_18w4q_798 summary{width:fit-content;color:var(--link);cursor:pointer;font-size:.76rem;font-weight:700;display:list-item}._evidenceAppendix_18w4q_798 summary span{color:#42647b;background:#edf3f7;border-radius:3px;place-items:center;min-width:20px;height:20px;margin-left:6px;font-size:.62rem;display:inline-grid}._evidenceAppendix_18w4q_798>p{color:var(--text-muted);margin:12px 0 0;font-size:.78rem;line-height:1.55}._evidenceAppendix_18w4q_798 ._tableScroll_18w4q_700{margin-bottom:0}._methodology_18w4q_571{background:#f8fafb}._methodology_18w4q_571 dl{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin-top:20px}._methodology_18w4q_571 dl div{border:1px solid var(--border);background:var(--surface);border-radius:4px;grid-template-columns:1fr;padding:12px}._comparability_18w4q_854{border-top:1px solid var(--border);margin-top:18px;padding-top:17px}._comparability_18w4q_854 h3{margin:0 0 8px;font-size:.8rem}._comparability_18w4q_854 p{color:var(--text-muted);font-size:.78rem;line-height:1.55}._articlePage_18w4q_659 .research-eyebrow{color:var(--text-muted);letter-spacing:.06em;text-transform:uppercase;margin:0;font-size:.7rem;font-weight:700}._articlePage_18w4q_659 .research-question-list{gap:7px}._articlePage_18w4q_659 .research-question-list button{border-color:var(--border);background:var(--surface-muted);min-height:92px;color:var(--text);border-radius:4px}:is(._articlePage_18w4q_659 .research-question-list button:hover,._articlePage_18w4q_659 .research-question-list button:focus-visible,._articlePage_18w4q_659 .research-question-list button[aria-pressed=true]){border-color:var(--accent);color:var(--text);background:#edf5fb}._articlePage_18w4q_659 .research-field textarea{border-color:var(--border);background:var(--surface);color:var(--text);border-radius:4px}._articlePage_18w4q_659 .research-field textarea::placeholder{color:#92999e}._articlePage_18w4q_659 .research-primary-button{border:1px solid var(--accent);background:var(--accent);color:#fff;border-radius:4px}._articlePage_18w4q_659 .research-primary-button:hover:not(:disabled){background:var(--link-hover)}._articlePage_18w4q_659 .research-prompt-panel,._articlePage_18w4q_659 .research-next-steps{border-color:var(--border);background:var(--surface-muted);border-radius:4px}._articlePage_18w4q_659 .research-next-steps a{border-color:var(--border);color:var(--text);border-radius:4px}._articlePage_18w4q_659 .research-next-steps a:hover{border-color:var(--accent);color:var(--text);background:#edf5fb}._articlePage_18w4q_659 .research-copy-status{color:var(--text-muted)}._related_18w4q_362 ul{border-top:1px solid var(--border);margin:18px 0 0;padding:0;list-style:none}._related_18w4q_362 li{border-bottom:1px solid var(--border);grid-template-columns:34px 1fr 18px;align-items:baseline;gap:12px;padding:11px 0;display:grid}._related_18w4q_362 li>span{color:var(--text-muted);font-size:.68rem}._related_18w4q_362 a{color:var(--link);font-size:.84rem;line-height:1.35}._related_18w4q_362 a:hover{color:var(--link-hover);text-decoration:underline}._published_18w4q_981{color:var(--text-muted);margin:18px 2px 0;font-size:.68rem}._published_18w4q_981 span{margin-right:6px;font-weight:700}@media (max-width:900px){._articleHeaderGrid_18w4q_520{grid-template-columns:1fr;gap:24px}._coverageGrid_18w4q_175{grid-template-columns:repeat(2,minmax(0,1fr))}._coverageGrid_18w4q_175>div:nth-child(3){border-top:1px solid var(--border-soft);border-left:0}._coverageGrid_18w4q_175>div:nth-child(4){border-top:1px solid var(--border-soft)}._boardLayout_18w4q_270{grid-template-columns:1fr}._boardSidebar_18w4q_432{grid-template-columns:repeat(2,minmax(0,1fr));position:static}._articleMetaPanel_18w4q_548{grid-template-columns:140px 1fr;gap:16px;display:grid}._articleMeta_18w4q_548{grid-template-columns:repeat(3,minmax(0,1fr))}._articleMeta_18w4q_548 div{border-top:0;border-left:1px solid var(--border);grid-template-columns:1fr;padding:4px 10px}}@media (max-width:680px){._siteFooterBand_18w4q_19{margin-top:48px}._siteFooterShell_18w4q_25{width:calc(100% - 40px)}._shell_18w4q_30,._articleShell_18w4q_31{width:min(100% - 20px,900px)}._hero_18w4q_36{margin-top:10px}._boardIdentity_18w4q_63{grid-template-columns:42px minmax(0,1fr);padding:18px}._boardMark_18w4q_71{border-radius:10px;width:42px;height:42px}._boardStatus_18w4q_104{grid-column:1/-1;width:fit-content;margin-top:3px}._boardOverview_18w4q_134{padding:15px 18px;display:block}._publicationStats_18w4q_151{flex-wrap:wrap;gap:12px;margin-top:14px}._coverageGrid_18w4q_175{grid-template-columns:1fr}._coverageGrid_18w4q_175>div+div,._coverageGrid_18w4q_175>div:nth-child(3),._coverageGrid_18w4q_175>div:nth-child(4){border-top:1px solid var(--border-soft);border-left:0}._coverageGrid_18w4q_175>div{padding:12px 18px}._indexItem_18w4q_282{grid-template-columns:48px minmax(0,1fr)}._storyMain_18w4q_329{padding:11px 12px}._storyTopline_18w4q_46{align-items:flex-start}._storyTopline_18w4q_46 span:last-child{text-align:right}._storyFooter_18w4q_47{align-items:flex-end}._tags_18w4q_394 li:last-child{display:none}._boardSidebar_18w4q_432{grid-template-columns:1fr}._articleHeader_18w4q_494{margin-top:10px;padding:18px}._articleHeader_18w4q_494 h1{font-size:1.9rem}._articleMetaPanel_18w4q_548{display:block}._metaIndex_18w4q_555{margin-bottom:9px}._articleMeta_18w4q_548{grid-template-columns:1fr}._articleMeta_18w4q_548 div{border-top:1px solid var(--border-soft);border-left:0;grid-template-columns:80px 1fr;padding:7px 0}._articleLayout_18w4q_600{grid-template-columns:1fr;gap:8px;margin-top:8px}._articleRail_18w4q_364{position:static}._articleRail_18w4q_364 nav{grid-template-columns:repeat(3,1fr);gap:8px}._articleRail_18w4q_364 a{padding-right:5px;font-size:.65rem}._articleBody_18w4q_642,._evidence_18w4q_656,._methodology_18w4q_571,._articlePage_18w4q_659 .research-deep-dive-slot,._related_18w4q_362{padding:20px 17px}._findings_18w4q_762 li{grid-template-columns:1fr;gap:5px}._findings_18w4q_762 small{text-align:left}._methodology_18w4q_571 dl{grid-template-columns:1fr}._footer_18w4q_1196,._articleFooter_18w4q_1197{margin-top:34px}}._articlePage_18w4q_659 ._articleShell_18w4q_31{width:min(1080px,100% - 48px)}._articlePage_18w4q_659 ._articleHeader_18w4q_494{padding:120px 0 0}._articlePage_18w4q_659 ._articleHeadline_18w4q_527,._articlePage_18w4q_659 ._articleByline_18w4q_1212,._articlePage_18w4q_659 ._articleHeader_18w4q_494>._previewBanner_18w4q_229{width:700px;max-width:calc(100% - 206px);margin-left:206px}._articlePage_18w4q_659 ._articleBreadcrumbs_18w4q_1219{color:#4b4b4b;gap:6px;margin:0 0 31px;font-size:.9rem;line-height:1.4;display:flex}._articlePage_18w4q_659 ._articleBreadcrumbs_18w4q_1219 a{color:inherit;font-weight:400;text-decoration:none}._articlePage_18w4q_659 ._articleHeader_18w4q_494 h1{letter-spacing:-.052em;text-wrap:pretty;max-width:700px;font-size:clamp(3.15rem,4.2vw,3.75rem);font-weight:520;line-height:1.06}._articlePage_18w4q_659 ._articleByline_18w4q_1212{gap:8px;margin-top:26px}._articlePage_18w4q_659 ._authorAvatar_18w4q_1248{background:#1d1d1f;width:20px;height:20px;font-size:.54rem}._articlePage_18w4q_659 ._articleByline_18w4q_1212 strong{font-size:.84rem;font-weight:450}._articlePage_18w4q_659 ._articleLayout_18w4q_600{grid-template-columns:minmax(0,660px) 110px;justify-content:start;gap:174px;width:944px;max-width:calc(100% - 206px);margin:98px 0 0 206px;display:grid}._articlePage_18w4q_659 ._articleBody_18w4q_642{grid-area:1/1;font-size:1.19rem;line-height:1.72}._articlePage_18w4q_659 ._articleBody_18w4q_642 p,._articlePage_18w4q_659 ._articleBody_18w4q_642 ul{margin-bottom:28px}._articlePage_18w4q_659 ._articleBody_18w4q_642 ul{padding-left:1.7em}._articlePage_18w4q_659 ._articleBody_18w4q_642 li{padding-left:8px}._articlePage_18w4q_659 ._articleBody_18w4q_642 li::marker{color:#b5b5b5}._articlePage_18w4q_659 ._articleBody_18w4q_642 h2{margin:82px 0 24px;font-size:clamp(2rem,3vw,2.55rem)}._articlePage_18w4q_659 ._articleBody_18w4q_642 h3{margin:52px 0 18px;font-size:clamp(1.3rem,2vw,1.65rem)}._articlePage_18w4q_659 ._articleRail_18w4q_364{color:#555;white-space:nowrap;border:0;grid-area:1/2;align-content:start;gap:16px;padding:0;font-size:.78rem;line-height:1.35;display:grid;position:sticky;top:28px}._articlePage_18w4q_659 ._articleRail_18w4q_364 button{width:fit-content;color:inherit;font:inherit;cursor:pointer;background:0 0;border:0;align-items:center;gap:5px;padding:0;display:inline-flex}._articlePage_18w4q_659 ._articleRail_18w4q_364 button:hover{color:#1d1d1f}._articlePage_18w4q_659 ._articleRail_18w4q_364 button span{color:#777;font-size:.8rem;position:relative;top:-2px}._articlePage_18w4q_659 ._articleBody_18w4q_642 .research-table-scroll{width:100%;margin:42px 0;transform:none}._articlePage_18w4q_659 ._evidence_18w4q_656,._articlePage_18w4q_659 ._methodology_18w4q_571,._articlePage_18w4q_659 .research-deep-dive-slot{width:660px;max-width:calc(100% - 206px);box-shadow:none;background:0 0;border:0;border-radius:0;margin:96px 0 0 206px;padding:0}._articlePage_18w4q_659 ._evidence_18w4q_656,._articlePage_18w4q_659 ._methodology_18w4q_571{border-top:1px solid #e5e5e5;padding-top:54px}._articlePage_18w4q_659 ._methodology_18w4q_571 dl{border-top:1px solid #e5e5e5;grid-template-columns:1fr;margin-top:28px}._articlePage_18w4q_659 ._methodology_18w4q_571 dl div{background:0 0;border:0;border-bottom:1px solid #e5e5e5;padding:16px 0}._articlePage_18w4q_659 .research-deep-dive-slot{box-sizing:border-box;border:1px solid #e5e5e5;padding:32px}._articlePage_18w4q_659 ._related_18w4q_362{width:1080px;max-width:100%;margin:112px 0 0}._articlePage_18w4q_659 ._published_18w4q_981{width:660px;max-width:calc(100% - 206px);margin:24px 0 0 206px}@media (max-width:1000px){._articlePage_18w4q_659 ._articleHeadline_18w4q_527,._articlePage_18w4q_659 ._articleByline_18w4q_1212,._articlePage_18w4q_659 ._articleHeader_18w4q_494>._previewBanner_18w4q_229,._articlePage_18w4q_659 ._articleLayout_18w4q_600,._articlePage_18w4q_659 ._evidence_18w4q_656,._articlePage_18w4q_659 ._methodology_18w4q_571,._articlePage_18w4q_659 .research-deep-dive-slot,._articlePage_18w4q_659 ._published_18w4q_981{max-width:100%;margin-left:0}._articlePage_18w4q_659 ._articleLayout_18w4q_600{grid-template-columns:minmax(0,660px) 110px;gap:clamp(40px,9vw,110px);width:100%}}@media (max-width:760px){._articlePage_18w4q_659 ._articleShell_18w4q_31{width:calc(100% - 32px)}._articlePage_18w4q_659 ._articleHeader_18w4q_494{padding-top:70px}._articlePage_18w4q_659 ._articleHeadline_18w4q_527,._articlePage_18w4q_659 ._articleByline_18w4q_1212{width:100%}._articlePage_18w4q_659 ._articleBreadcrumbs_18w4q_1219{margin-bottom:25px;font-size:.82rem}._articlePage_18w4q_659 ._articleHeader_18w4q_494 h1{font-size:clamp(2.55rem,12vw,3.55rem)}._articlePage_18w4q_659 ._articleLayout_18w4q_600{flex-direction:column;margin-top:62px;display:flex}._articlePage_18w4q_659 ._articleRail_18w4q_364{border-top:1px solid #e5e5e5;border-bottom:1px solid #e5e5e5;flex-wrap:wrap;order:-1;gap:12px 20px;padding:16px 0;display:flex;position:static}._articlePage_18w4q_659 ._articleBody_18w4q_642{margin-top:48px;font-size:1.04rem}._articlePage_18w4q_659 ._evidence_18w4q_656,._articlePage_18w4q_659 ._methodology_18w4q_571,._articlePage_18w4q_659 .research-deep-dive-slot,._articlePage_18w4q_659 ._published_18w4q_981{width:100%}}._articlePage_18w4q_659 ._evidence_18w4q_656,._articlePage_18w4q_659 ._methodology_18w4q_571,._articlePage_18w4q_659 .research-deep-dive-slot,._articlePage_18w4q_659 ._related_18w4q_362,._articlePage_18w4q_659 ._published_18w4q_981{box-sizing:border-box;width:660px;max-width:calc(100% - 206px);box-shadow:none;background:0 0;border-left:0;border-right:0;border-radius:0;margin-left:206px;margin-right:0;padding-left:0;padding-right:0}._articlePage_18w4q_659 .research-deep-dive-slot{border-top:1px solid #e5e5e5;border-bottom:0;padding-top:54px;padding-bottom:0}._articlePage_18w4q_659 .research-question-list{border-top:1px solid #e5e5e5;gap:0;margin:28px 0}._articlePage_18w4q_659 .research-question-list button{color:#1d1d1f;background:0 0;border:0;border-bottom:1px solid #e5e5e5;border-radius:0;min-height:0;padding:16px 0}:is(._articlePage_18w4q_659 .research-question-list button:hover,._articlePage_18w4q_659 .research-question-list button:focus-visible,._articlePage_18w4q_659 .research-question-list button[aria-pressed=true]){color:#06f;background:0 0;border-color:#e5e5e5}._articlePage_18w4q_659 .research-question-list button small{color:#777}._articlePage_18w4q_659 .research-field textarea{box-sizing:border-box;color:#1d1d1f;background:#fff;border-color:#dcdcdc;border-radius:0}._articlePage_18w4q_659 .research-primary-button{border-radius:0}._articlePage_18w4q_659 .research-prompt-panel{background:0 0;border:0;border-top:1px solid #e5e5e5;border-radius:0;padding:22px 0 0}._articlePage_18w4q_659 .research-next-steps{background:0 0;border-color:#e5e5e5;border-radius:0;padding-top:28px}._articlePage_18w4q_659 .research-next-steps ul{border-top:1px solid #e5e5e5;display:block}._articlePage_18w4q_659 .research-next-steps li{border-bottom:1px solid #e5e5e5}._articlePage_18w4q_659 .research-next-steps a{color:#1d1d1f;background:0 0;border:0;border-radius:0;min-height:0;padding:15px 0}._articlePage_18w4q_659 .research-next-steps a:hover{color:#06f;background:0 0;border-color:#0000}._articlePage_18w4q_659 .research-next-steps a>span:first-child{color:inherit}._articlePage_18w4q_659 .research-next-steps a small{color:#777}._articlePage_18w4q_659 ._related_18w4q_362{border-top:1px solid #e5e5e5;margin-top:104px;padding-top:54px}._articlePage_18w4q_659 ._related_18w4q_362 ul{border-top:1px solid #e5e5e5;margin-top:28px;display:block}._articlePage_18w4q_659 ._related_18w4q_362 li{background:0 0;border:0;border-bottom:1px solid #e5e5e5;grid-template-columns:34px minmax(0,1fr) 18px;min-height:0;padding:17px 0;display:grid}._articlePage_18w4q_659 ._related_18w4q_362 li+li{border-left:0}._articlePage_18w4q_659 ._related_18w4q_362 a{align-self:auto;font-size:.9rem;font-weight:500}@media (max-width:1000px){._articlePage_18w4q_659 ._evidence_18w4q_656,._articlePage_18w4q_659 ._methodology_18w4q_571,._articlePage_18w4q_659 .research-deep-dive-slot,._articlePage_18w4q_659 ._related_18w4q_362,._articlePage_18w4q_659 ._published_18w4q_981{max-width:100%;margin-left:0}}@media (max-width:760px){._articlePage_18w4q_659 ._evidence_18w4q_656,._articlePage_18w4q_659 ._methodology_18w4q_571,._articlePage_18w4q_659 .research-deep-dive-slot,._articlePage_18w4q_659 ._related_18w4q_362,._articlePage_18w4q_659 ._published_18w4q_981{width:100%}}._indexPage_18w4q_1641 ._hero_18w4q_36{box-shadow:none;background:0 0;border:0;border-radius:0;margin-top:0;padding:88px 0 0;overflow:visible}._heroMain_18w4q_1651{grid-template-columns:minmax(0,1fr) 300px;align-items:end;gap:clamp(48px,10vw,140px);padding-bottom:52px;display:grid}._heroCopy_18w4q_1659{max-width:750px}._heroCopy_18w4q_1659 ._eyebrow_18w4q_53{color:var(--accent);margin-bottom:18px}._indexPage_18w4q_1641 ._heroCopy_18w4q_1659 h1{letter-spacing:-.062em;max-width:760px;margin:0;font-size:clamp(2.8rem,6.1vw,5.5rem);font-weight:560;line-height:.98}._heroCopy_18w4q_1659>p:last-child{max-width:620px;color:var(--text-muted);margin:28px 0 0;font-size:.96rem;line-height:1.7}._heroStats_18w4q_1685{justify-items:start;gap:24px;display:grid}._heroStats_18w4q_1685 ._publicationStats_18w4q_151{border-top:1px solid var(--border);justify-content:space-between;width:100%;padding-top:18px}._heroStats_18w4q_1685 ._publicationStats_18w4q_151 div{gap:5px;display:grid}._heroStats_18w4q_1685 ._publicationStats_18w4q_151 dt{font-size:1.12rem}._heroStats_18w4q_1685 ._publicationStats_18w4q_151 dd{font-size:.61rem}._indexPage_18w4q_1641 ._coverageGrid_18w4q_175{border-top:1px solid var(--border);border-bottom:1px solid var(--border);background:0 0;grid-template-columns:1.05fr .8fr .85fr 1.8fr}._indexPage_18w4q_1641 ._coverageGrid_18w4q_175>div{padding:16px 18px 16px 0}._indexPage_18w4q_1641 ._coverageGrid_18w4q_175>div+div{padding-left:18px}._indexPage_18w4q_1641 ._previewBanner_18w4q_229{background:#fffcf3;border-color:#eadfbd;margin-top:18px}._indexPage_18w4q_1641 ._indexHeading_18w4q_45{margin-bottom:16px;padding:0}._indexPage_18w4q_1641 ._sectionLabel_18w4q_54{color:var(--text);letter-spacing:.04em;font-size:.74rem}._featuredArticle_18w4q_1747{border:1px solid var(--border);background:var(--surface);border-radius:16px;grid-template-columns:minmax(0,1.55fr) minmax(280px,.72fr);display:grid;overflow:hidden;box-shadow:0 1px 2px #14202c08,0 16px 46px #14202c0e}._featuredContent_18w4q_1757{flex-direction:column;align-items:flex-start;min-width:0;padding:clamp(32px,5vw,58px);display:flex}._featuredContent_18w4q_1757 ._storyTopline_18w4q_46{width:100%}._featuredContent_18w4q_1757 h2{letter-spacing:-.055em;max-width:780px;margin:62px 0 0;font-size:clamp(2rem,4.2vw,3.8rem);font-weight:590;line-height:1.04}._featuredContent_18w4q_1757 h2 a{color:inherit;text-decoration:none}._featuredContent_18w4q_1757>p{max-width:660px;color:var(--text-muted);margin:22px 0 0;font-size:.9rem;line-height:1.65}._featuredContent_18w4q_1757 ._tags_18w4q_394{margin-top:28px}._featuredLink_18w4q_1795{color:var(--link);align-items:center;gap:8px;margin-top:auto;padding-top:52px;font-size:.75rem;font-weight:700;text-decoration:none;display:inline-flex}._featuredLink_18w4q_1795:hover{color:var(--link-hover)}._featuredEvidence_18w4q_1811{color:#f5f8fa;background:radial-gradient(circle at 82% 10%,#3a7ca457,#0000 36%),#14232d;border-left:1px solid #ffffff14;flex-direction:column;padding:clamp(30px,4vw,48px);display:flex}._featuredEvidence_18w4q_1811>p{color:#9fb7c6;letter-spacing:.08em;text-transform:uppercase;margin:0 0 34px;font-size:.66rem;font-weight:700}._featuredEvidence_18w4q_1811 dl{margin:auto 0 0;display:grid}._featuredEvidence_18w4q_1811 dl div{border-top:1px solid #ffffff26;grid-template-columns:1fr auto;gap:7px 16px;padding:18px 0;display:grid}._featuredEvidence_18w4q_1811 dt{color:#b9c8d1;font-size:.7rem;line-height:1.4}._featuredEvidence_18w4q_1811 dd{letter-spacing:-.02em;margin:0;font-size:1.18rem;font-weight:650}._featuredEvidence_18w4q_1811 small{color:#718d9e;grid-column:1/-1;font-size:.61rem}._indexPage_18w4q_1641 ._indexList_18w4q_256{padding-top:68px}._indexPage_18w4q_1641 ._indexItem_18w4q_282{border-radius:12px;flex-direction:column;min-height:310px;padding:26px;display:flex;overflow:visible}._indexPage_18w4q_1641 ._indexItem_18w4q_282:hover{transform:translateY(-2px)}._indexPage_18w4q_1641 ._indexItem_18w4q_282 ._storyTopline_18w4q_46{width:100%}._indexPage_18w4q_1641 ._indexItem_18w4q_282 ._storyContent_18w4q_340{flex:1;padding:30px 0}._indexPage_18w4q_1641 ._indexItem_18w4q_282 ._storyContent_18w4q_340>p{margin-top:14px;font-size:.82rem;line-height:1.6}._indexPage_18w4q_1641 ._indexItem_18w4q_282 ._storyFooter_18w4q_47{padding-top:14px}._indexPage_18w4q_1641 ._tags_18w4q_394 li{background:#f1f5f7;border-radius:4px;padding:4px 7px}._researchNote_18w4q_1919{border-top:1px solid var(--border);border-bottom:1px solid var(--border);grid-template-columns:200px minmax(0,1fr);gap:30px;margin-top:56px;padding:22px 0;display:grid}._researchNote_18w4q_1919 strong{font-size:.72rem}._researchNote_18w4q_1919 p{max-width:760px;color:var(--text-muted);margin:0;font-size:.72rem;line-height:1.6}@media (max-width:900px){._heroMain_18w4q_1651,._featuredArticle_18w4q_1747{grid-template-columns:1fr}._heroMain_18w4q_1651{gap:36px}._heroStats_18w4q_1685{max-width:360px}._indexPage_18w4q_1641 ._coverageGrid_18w4q_175{grid-template-columns:repeat(2,minmax(0,1fr))}._indexPage_18w4q_1641 ._coverageGrid_18w4q_175>div:nth-child(3),._indexPage_18w4q_1641 ._coverageGrid_18w4q_175>div:nth-child(4){border-top:1px solid var(--border-soft)}._indexPage_18w4q_1641 ._coverageGrid_18w4q_175>div:nth-child(3){padding-left:0}._featuredEvidence_18w4q_1811{border-top:1px solid #ffffff14;border-left:0}._featuredEvidence_18w4q_1811 dl{grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}}@media (max-width:680px){._indexPage_18w4q_1641 ._hero_18w4q_36{padding-top:58px}._indexPage_18w4q_1641 ._heroCopy_18w4q_1659 h1{font-size:clamp(2.55rem,13vw,4rem)}._indexPage_18w4q_1641 ._coverageGrid_18w4q_175,._indexPage_18w4q_1641 ._storyGrid_18w4q_277,._featuredEvidence_18w4q_1811 dl,._researchNote_18w4q_1919{grid-template-columns:1fr}._indexPage_18w4q_1641 ._coverageGrid_18w4q_175>div,._indexPage_18w4q_1641 ._coverageGrid_18w4q_175>div+div,._indexPage_18w4q_1641 ._coverageGrid_18w4q_175>div:nth-child(3){border-top:1px solid var(--border-soft);border-left:0;padding:12px 0}._featuredSection_18w4q_1732,._indexPage_18w4q_1641 ._indexList_18w4q_256{padding-top:48px}._featuredContent_18w4q_1757{padding:26px 22px}._featuredContent_18w4q_1757 h2{margin-top:42px;font-size:clamp(1.8rem,9.5vw,2.7rem)}._featuredLink_18w4q_1795{padding-top:38px}._featuredEvidence_18w4q_1811{padding:28px 22px}._featuredEvidence_18w4q_1811 dl{gap:0}._indexPage_18w4q_1641 ._indexItem_18w4q_282{min-height:280px;padding:22px}._researchNote_18w4q_1919{gap:10px;margin-top:42px}}._indexPage_18w4q_1641{--background:#fff;--surface:#fff;--surface-muted:#fafafa;--text:#1d1d1f;--text-muted:#666;--border:#e5e5e5;--border-soft:#eee;--link:#06f;--link-hover:#0053d6;--accent:#06f;color:#1d1d1f;font-family:var(--font-geist-sans), "PingFang SC", "Microsoft YaHei", sans-serif;background:#fff}._indexPage_18w4q_1641 ._shell_18w4q_30{width:min(1080px,100% - 48px)}._indexPage_18w4q_1641 ._hero_18w4q_36{box-shadow:none;background:0 0;border:0;border-radius:0;margin:0;padding:68px 0 32px;overflow:visible}._indexPage_18w4q_1641 ._hero_18w4q_36 h1{letter-spacing:-.055em;margin:0;font-size:clamp(2.65rem,5vw,4rem);font-weight:600;line-height:1}._indexPage_18w4q_1641 ._hero_18w4q_36>p{color:#666;max-width:620px;margin:14px 0 0;font-size:.875rem;line-height:1.55}._researchToolbar_18w4q_2087{border-bottom:1px solid #e5e5e5;justify-content:space-between;align-items:center;gap:28px;padding:0 0 14px;display:flex}._topicNav_18w4q_2096{scrollbar-width:none;align-items:center;gap:2px;min-width:0;display:flex;overflow-x:auto}._topicNav_18w4q_2096::-webkit-scrollbar{display:none}._topicNav_18w4q_2096 a{color:#666;white-space:nowrap;border-radius:999px;flex:none;align-items:center;height:32px;padding:0 12px;font-size:.75rem;font-weight:500;text-decoration:none;transition:background-color .14s,color .14s;display:inline-flex}._topicNav_18w4q_2096 a:hover{color:#1d1d1f;background:#f2f2f2}._topicNav_18w4q_2096 ._activeTopic_18w4q_2129,._topicNav_18w4q_2096 ._activeTopic_18w4q_2129:hover{color:#fff;background:#1d1d1f}._searchForm_18w4q_2135{background:#fff;border:1px solid #e5e5e5;border-radius:999px;flex:none;align-items:center;gap:8px;width:250px;height:34px;padding:0 12px;transition:border-color .14s,box-shadow .14s;display:flex}._searchForm_18w4q_2135:focus-within{border-color:#a8a8a8;box-shadow:0 0 0 3px #0066ff14}._searchForm_18w4q_2135 svg{fill:none;stroke:#666;stroke-width:1.25px;flex:none;width:14px;height:14px}._searchForm_18w4q_2135 input{color:#1d1d1f;width:100%;min-width:0;font:inherit;background:0 0;border:0;outline:0;padding:0;font-size:.75rem}._searchForm_18w4q_2135 input::placeholder{color:#8a8a8a}._indexPage_18w4q_1641 ._previewBanner_18w4q_229{color:#6d5417;background:#fffcf3;border:1px solid #eadfbd;border-radius:6px;margin:16px 0 0;padding:10px 12px}._featuredSection_18w4q_1732{padding-top:40px}._indexPage_18w4q_1641 ._sectionLabel_18w4q_54{color:#1d1d1f;letter-spacing:-.01em;text-transform:none;margin:0 0 14px;font-size:.78rem;font-weight:600}._featuredGrid_18w4q_2201{grid-template-columns:repeat(3,minmax(0,1fr));width:100%;min-width:0;display:grid}._featuredArticle_18w4q_1747{box-sizing:border-box;width:100%;min-width:0;min-height:410px;box-shadow:none;background:#fff;border:1px solid #e5e5e5;border-radius:0;flex-direction:column;padding:30px;transition:background-color .16s;display:flex;position:relative}._featuredArticle_18w4q_1747+._featuredArticle_18w4q_1747{border-left:0}._featuredArticle_18w4q_1747:hover{background:#fafafa}._featuredTopline_18w4q_2232{color:#777;justify-content:space-between;align-items:flex-start;font-size:.69rem;display:flex}._featuredMark_18w4q_2240{width:38px;height:38px;display:block;position:relative}._featuredMark_18w4q_2240 i{border:1px solid #1d1d1f;display:block;position:absolute}._featuredMark_18w4q_2240 i:first-child{background:#06f;border-color:#06f;inset:2px 16px 16px 2px}._featuredMark_18w4q_2240 i:nth-child(2){inset:10px 8px 8px 10px}._featuredMark_18w4q_2240 i:nth-child(3){inset:18px 0 0 18px}._featuredMark_18w4q_2240[data-variant="1"]{transform:rotate(45deg)scale(.84)}._featuredMark_18w4q_2240[data-variant="1"] i:first-child{background:#1d1d1f;border-color:#1d1d1f}._featuredMark_18w4q_2240[data-variant="2"] i{border-radius:50%}._featuredMark_18w4q_2240[data-variant="2"] i:first-child{background:0 0;border-color:#1d1d1f}._featuredCopy_18w4q_2285{margin-top:38px}._featuredCopy_18w4q_2285>p:first-child{color:#666;margin:0 0 12px;font-size:.7rem;line-height:1.4}._featuredCopy_18w4q_2285 h3{letter-spacing:-.04em;margin:0;font-size:clamp(1.35rem,2vw,1.7rem);font-weight:590;line-height:1.14}._indexPage_18w4q_1641[data-locale=zh] ._featuredCopy_18w4q_2285 h3{letter-spacing:0;font-weight:600;line-height:1.38}._featuredCopy_18w4q_2285 h3 a{color:inherit;text-decoration:none}._featuredCopy_18w4q_2285 h3 a:after{content:"";position:absolute;inset:0}._featuredCopy_18w4q_2285>p:last-child{color:#666;-webkit-line-clamp:3;-webkit-box-orient:vertical;margin:15px 0 0;font-size:.78rem;line-height:1.55;display:-webkit-box;overflow:hidden}._indexPage_18w4q_1641[data-locale=zh] ._featuredCopy_18w4q_2285>p:last-child{letter-spacing:.01em;line-height:1.68}._featuredAuthor_18w4q_2337{align-items:center;gap:9px;margin-top:auto;padding-top:28px;display:flex}._featuredAuthor_18w4q_2337>span{color:#fff;background:#1d1d1f;border-radius:50%;place-items:center;width:24px;height:24px;font-size:.6rem;font-weight:700;display:grid}._featuredArticle_18w4q_1747:first-child ._featuredAuthor_18w4q_2337>span{background:#06f}._featuredAuthor_18w4q_2337 strong{font-size:.7rem;font-weight:500}._indexPage_18w4q_1641 ._previewBadge_18w4q_243{color:#755b00;background:#fff2c2;border-radius:999px;padding:3px 7px;font-size:.58rem}._indexPage_18w4q_1641 ._indexList_18w4q_256{padding-top:56px;scroll-margin-top:20px}._indexPage_18w4q_1641 ._storyGrid_18w4q_277{grid-template-columns:repeat(3,minmax(0,1fr));gap:0;display:grid}._indexPage_18w4q_1641 ._indexItem_18w4q_282{box-sizing:border-box;width:100%;min-width:0;min-height:230px;box-shadow:none;background:#fff;border:1px solid #e5e5e5;border-radius:0;flex-direction:column;margin:-1px 0 0 -1px;padding:26px;transition:background-color .16s;display:flex;position:relative;overflow:visible}._indexPage_18w4q_1641 ._indexItem_18w4q_282:nth-child(3n+1){margin-left:0}._indexPage_18w4q_1641 ._indexItem_18w4q_282:hover{z-index:1;box-shadow:none;background:#fafafa;border-color:#d1d1d1;transform:none}._indexPage_18w4q_1641 ._indexItem_18w4q_282 ._storyTopline_18w4q_46{color:#777;gap:18px;width:100%;font-size:.66rem;line-height:1.4}._indexPage_18w4q_1641 ._indexItem_18w4q_282 ._storyContent_18w4q_340{flex:1;padding:25px 0 24px;display:block}._indexPage_18w4q_1641 ._indexItem_18w4q_282 h2{letter-spacing:-.025em;margin:0;font-size:1.12rem;font-weight:590;line-height:1.3}._indexPage_18w4q_1641[data-locale=zh] ._indexItem_18w4q_282 h2{letter-spacing:0;font-weight:600;line-height:1.45}._indexPage_18w4q_1641 ._indexItem_18w4q_282 ._storyContent_18w4q_340>p{color:#666;-webkit-line-clamp:2;-webkit-box-orient:vertical;margin:10px 0 0;font-size:.73rem;line-height:1.52;display:-webkit-box;overflow:hidden}._indexPage_18w4q_1641[data-locale=zh] ._indexItem_18w4q_282 ._storyContent_18w4q_340>p{letter-spacing:.01em;line-height:1.68}._indexPage_18w4q_1641 ._indexItem_18w4q_282 ._storyFooter_18w4q_47{color:#777;border-top:1px solid #eee;gap:14px;padding:13px 0 0;font-size:.62rem;line-height:1.4}._indexPage_18w4q_1641 ._readLink_18w4q_361{color:#06f;font-size:.9rem;text-decoration:none}._indexPage_18w4q_1641 ._readLink_18w4q_361:hover{color:#0053d6;text-decoration:none}._indexPage_18w4q_1641 ._researchNote_18w4q_1919{border-top:1px solid #e5e5e5;border-bottom:1px solid #e5e5e5;grid-template-columns:190px minmax(0,1fr);gap:30px;margin-top:48px;padding:20px 0;display:grid}._indexPage_18w4q_1641 ._researchNote_18w4q_1919 strong{font-size:.7rem}._indexPage_18w4q_1641 ._researchNote_18w4q_1919 p{color:#666;margin:0;font-size:.7rem;line-height:1.6}._emptyResults_18w4q_2500{color:#666;text-align:center;border:1px solid #e5e5e5;margin:0;padding:70px 24px;font-size:.82rem}@media (max-width:900px){._researchToolbar_18w4q_2087{flex-direction:column-reverse;align-items:flex-start}._topicNav_18w4q_2096{width:100%}._searchForm_18w4q_2135{width:min(100%,320px)}._featuredGrid_18w4q_2201,._indexPage_18w4q_1641 ._storyGrid_18w4q_277{grid-template-columns:repeat(2,minmax(0,1fr))}._featuredArticle_18w4q_1747:nth-child(3){border-top:0;border-left:1px solid #e5e5e5}._indexPage_18w4q_1641 ._indexItem_18w4q_282:nth-child(3n+1){margin-left:-1px}._indexPage_18w4q_1641 ._indexItem_18w4q_282:nth-child(odd){margin-left:0}}@media (max-width:640px){._indexPage_18w4q_1641 ._shell_18w4q_30{width:calc(100% - 28px);max-width:1080px}._indexPage_18w4q_1641 ._hero_18w4q_36{padding:50px 0 28px}._indexPage_18w4q_1641 ._hero_18w4q_36 h1{font-size:2.65rem}._indexPage_18w4q_1641 ._hero_18w4q_36>p{overflow-wrap:anywhere;white-space:normal}._featuredGrid_18w4q_2201,._indexPage_18w4q_1641 ._storyGrid_18w4q_277,._indexPage_18w4q_1641 ._researchNote_18w4q_1919{grid-template-columns:1fr}._featuredArticle_18w4q_1747{min-height:360px;padding:24px}._featuredArticle_18w4q_1747+._featuredArticle_18w4q_1747,._featuredArticle_18w4q_1747:nth-child(3){border-top:0;border-left:1px solid #e5e5e5}._indexPage_18w4q_1641 ._indexItem_18w4q_282,._indexPage_18w4q_1641 ._indexItem_18w4q_282:nth-child(3n+1),._indexPage_18w4q_1641 ._indexItem_18w4q_282:nth-child(odd){min-height:210px;margin-left:0;padding:22px}._indexPage_18w4q_1641 ._researchNote_18w4q_1919{gap:10px}}
