.ov-wrap{max-width:900px;margin:0 auto;padding:0 clamp(20px,4vw,60px) 100px}.ov-header{padding:36px 0 24px;position:relative}.lang-bar{display:flex;align-items:center;justify-content:flex-end;gap:6px;margin-bottom:10px}.ls-btn{font-family:var(--sans);font-size:13px;font-weight:400;letter-spacing:.08em;text-transform:uppercase;background:none;border:none;cursor:pointer;color:var(--stone);padding:0;transition:color .18s}.ls-btn:hover{color:var(--ink)}.ls-btn.ls-active{color:var(--rose);font-weight:600}.ls-sep{font-size:11px;color:var(--rule)}.ov-title-row{display:flex;align-items:baseline;gap:14px;flex-wrap:wrap;margin-bottom:12px}.ov-title{font-family:var(--serif);font-size:clamp(26px,2.8vw,36px);font-weight:300;line-height:1.15;color:var(--ink);margin:0}.ov-title em{font-style:italic;color:var(--rose)}.ov-badge{font-family:var(--sans);font-size:11px;font-weight:400;letter-spacing:.14em;text-transform:uppercase;color:var(--rose);border:1px solid rgba(193,125,157,.4);border-radius:3px;padding:2px 8px}.ov-desc{font-family:var(--sans);font-size:clamp(16px,1.6vw,18px);font-weight:300;color:var(--stone);line-height:1.75;margin:0}.ov-desc strong{font-weight:400;color:var(--ink)}.sec-label{font-family:var(--sans);font-size:18px;font-weight:700;letter-spacing:.01em;color:var(--rose);margin:44px 0 14px;padding:8px 14px;background:linear-gradient(to right,rgba(193,125,157,.12),transparent 70%);border-radius:4px}.prose p{font-family:var(--sans);font-size:16px;font-weight:300;color:var(--ink);line-height:1.8;margin:0 0 16px}.prose strong{font-weight:600;color:var(--ink)}.prose em{font-style:italic}.prose code{font-family:SF Mono,ui-monospace,monospace;font-size:14px;background:#0000000d;border-radius:3px;padding:1px 6px;color:var(--rose)}.prose .citation{font-size:13px;color:var(--stone);font-style:italic;margin-top:-4px}.prose .citation a{color:var(--rose);text-decoration:underline}.prose .citation a:hover{color:var(--ink)}.timeline-card{border:1px solid var(--rule);border-radius:8px;padding:24px 26px 20px;background:var(--bg);margin:20px 0 24px}.timeline-caption{font-family:var(--sans);font-size:13px;font-weight:500;color:var(--ink);margin-bottom:18px}.timeline{display:flex;flex-direction:column;gap:8px}.tl-row{display:flex;align-items:center;gap:14px}.tl-label{font-family:var(--sans);font-size:13px;font-weight:500;color:var(--ink);width:130px;flex-shrink:0;line-height:1.3}.tl-sub{display:block;font-size:11px;font-weight:300;color:var(--stone)}.tl-track-5{flex:1;display:grid;grid-template-columns:repeat(5,1fr);gap:5px}.tl-bar{height:34px;border-radius:4px;display:flex;align-items:center;justify-content:center;font-family:var(--sans);font-size:13px;font-weight:600;color:#fff}.tl-gray{background:#847b7b8c}.tl-2023{background:var(--rose)}.tl-empty{background:transparent}.tl-pair-row{margin-top:-2px}.tl-pair-lbl{height:auto;background:transparent;color:var(--rose);font-size:11px;font-weight:500;font-style:italic}.timeline-legend{display:flex;align-items:center;gap:8px;margin-top:14px;font-family:var(--sans);font-size:12px;color:var(--stone)}.tl-dot{width:10px;height:10px;border-radius:2px;flex-shrink:0}.tl-2023-dot{background:var(--rose)}.timeline-note{font-family:var(--sans);font-size:11px;font-style:italic;color:#a8a19d;margin-top:8px}.glossary-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px 24px;margin:8px 0}.glossary-item{display:flex;flex-direction:column;gap:4px}.glossary-term{font-family:var(--sans);font-size:15px;font-weight:500;color:var(--ink)}.glossary-desc{font-family:var(--sans);font-size:14px;font-weight:300;color:var(--stone);line-height:1.6}.sample-table{border:1px solid var(--rule);border-radius:8px;overflow:hidden;margin:8px 0 20px}.sample-row{display:grid;grid-template-columns:1fr 1fr;padding:10px 18px;border-bottom:1px solid var(--rule);font-family:var(--sans);font-size:14px;color:var(--ink)}.sample-row:last-child{border-bottom:none}.sample-row span:last-child{text-align:right;font-weight:500}.sample-head{background:#00000005;font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--stone);font-weight:500}.sample-head span:last-child{font-weight:500}.funnel-table{border:1px solid var(--rule);border-radius:8px;overflow:hidden;margin:8px 0 20px}.funnel-row{display:grid;grid-template-columns:2fr 1fr 1fr;padding:9px 18px;border-bottom:1px solid var(--rule);font-family:var(--sans);font-size:13.5px;color:var(--ink);gap:8px}.funnel-row:last-child{border-bottom:none}.funnel-row span:not(:first-child){text-align:right;font-weight:500}.funnel-row em{font-style:italic;font-weight:300;color:var(--stone);font-size:11.5px}.funnel-head{background:#00000005;font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--stone);font-weight:500}.funnel-head span:not(:first-child){font-weight:500}.funnel-final{background:#c17d9d12}.funnel-final span:first-child{color:var(--rose);font-weight:500}.funnel-final span:not(:first-child){color:var(--rose);font-weight:700}.cta-btn{display:inline-block;margin-top:24px;font-family:var(--sans);font-size:15px;font-weight:500;color:#fff;background:var(--rose);padding:14px 28px;border-radius:6px;text-decoration:none;transition:opacity .15s}.cta-btn:hover{opacity:.85}html[data-lang=zh] .glossary-grid.lang-zh{display:grid!important}html[data-lang=zh] .cta-btn.lang-zh{display:inline-block!important}