.knowledge{--ink:#162941;--muted:#677489;--blue:#175de8;--line:#dce3ec;color:var(--ink);background:#f7f9fc;padding:5.14286rem 5vw 0;font-family:-apple-system,BlinkMacSystemFont,PingFang SC,Microsoft YaHei,sans-serif;font-size:1.14286rem;line-height:1.65}.knowledge *{box-sizing:border-box}.knowledge a{color:inherit;text-decoration:none}.knowledge a:focus-visible{outline:.214286rem solid var(--blue);outline-offset:.357143rem}.knowledge__masthead,.knowledge__hero,.knowledge__body,.knowledge__end,.knowledge__notice{max-width:88.5714rem;margin:auto}.knowledge__masthead{border-bottom:.0714286rem solid var(--line);justify-content:space-between;align-items:center;padding-bottom:1.85714rem;font-weight:600;display:flex}.knowledge__masthead span{color:var(--muted);font-weight:400}.knowledge__text-link{font-size:.928571rem;color:var(--muted)!important}.knowledge__hero{grid-template-columns:1fr 21.4286rem;gap:5.14286rem;padding:5.14286rem 0 4.57143rem;display:grid}.knowledge__eyebrow{letter-spacing:.142857rem;color:var(--blue);margin:0 0 1.57143rem;font-size:.785714rem;font-weight:600}.knowledge h1{letter-spacing:-.142857rem;margin:0 0 1.71429rem;font-size:4.57143rem;font-weight:650;line-height:1.18}.knowledge h1 span{color:var(--blue)}.knowledge__intro{color:var(--muted);margin:0;font-size:1.14286rem;line-height:1.9}.knowledge__hero-index{border-top:.142857rem solid var(--ink);align-self:end;padding:1.71429rem 0 0}.knowledge__index-label{color:var(--muted);font-size:.928571rem}.knowledge__hero-index strong{letter-spacing:-.285714rem;font-feature-settings:"tnum";font-variant-numeric:tabular-nums;font-size:5.14286rem;font-weight:500;line-height:1.3;display:block}.knowledge__hero-index strong span{letter-spacing:0;color:var(--muted);font-size:1rem}.knowledge__hero-index p{color:var(--muted);margin:.285714rem 0 1.42857rem;font-size:.928571rem}.knowledge__hero-index>a{border-top:.0714286rem solid var(--line);justify-content:space-between;padding:1.14286rem 0;font-size:1rem;display:flex}.knowledge__body{border-top:.0714286rem solid var(--line);grid-template-columns:14.2857rem minmax(0,1fr);gap:4.57143rem;padding-top:2.57143rem;display:grid}.knowledge__nav{height:fit-content;position:sticky;top:7.14286rem}.knowledge__nav>p{color:var(--muted);letter-spacing:.142857rem;margin:0 0 1.28571rem;font-size:.785714rem}.knowledge__nav>a{border-bottom:.0714286rem solid var(--line);align-items:center;gap:1rem;padding:1rem 0;font-size:1rem;display:flex}.knowledge__nav>a>span{color:var(--muted);font-size:.785714rem}.knowledge__nav small{color:var(--muted);margin-left:auto;font-size:.785714rem}.knowledge__nav .knowledge__back{color:var(--muted);border:0;margin-top:1.71429rem;font-size:.857143rem}.knowledge__sections>section{margin-bottom:4.28571rem;scroll-margin-top:7.14286rem}.knowledge__section-heading,.knowledge__section-heading>div{align-items:center;gap:1.14286rem;display:flex}.knowledge__section-heading{justify-content:space-between;padding:0 0 1.57143rem}.knowledge__section-heading>div>span{color:var(--blue);font-size:.857143rem}.knowledge h2{margin:0;font-size:1.85714rem;font-weight:600}.knowledge__section-heading>a{color:var(--muted);font-size:.857143rem}.knowledge__entries{border-left:.0714286rem solid var(--line);border-top:.0714286rem solid var(--line);background:#fff;grid-template-columns:repeat(2,minmax(0,1fr));margin:0;padding:0;list-style:none;display:grid}.knowledge__entries>li{border-right:.0714286rem solid var(--line);border-bottom:.0714286rem solid var(--line);padding:1.85714rem;transition:background .15s}.knowledge__entries>li:hover{background:#f0f5ff}.knowledge__entries article{flex-direction:column;align-items:flex-start;height:100%;display:flex}.knowledge h3{overflow-wrap:anywhere;width:100%;margin:0 0 .857143rem;font-size:1.28571rem;font-weight:600;line-height:1.6}.knowledge h3 a{justify-content:space-between;gap:1.14286rem;display:flex}.knowledge h3 span{color:var(--blue);font-size:1.14286rem;font-weight:400}.knowledge__entries p{color:var(--muted);overflow-wrap:anywhere;margin:0 0 1.57143rem;font-size:1rem;line-height:1.9}.knowledge__source{margin-top:auto;font-size:.785714rem;color:var(--muted)!important}.knowledge__source span{color:var(--blue);margin-left:.571429rem}.knowledge__empty,.knowledge__notice{color:var(--muted);font-size:1rem}.knowledge__notice{padding:1.14286rem 0}.knowledge__end{border-top:.0714286rem solid var(--line);color:var(--muted);justify-content:space-between;padding:1.71429rem 0;font-size:.857143rem;display:flex}@media (max-width:1600px){.knowledge{padding:5.14286rem 5vw 0}.knowledge__hero{grid-template-columns:1fr;gap:2rem;padding:2.85714rem 0}.knowledge h1{font-size:3.14286rem}.knowledge__hero-index{grid-template-columns:1fr auto;align-items:center;max-width:none;padding-top:1.28571rem;display:grid}.knowledge__hero-index strong{grid-area:1/2/3;font-size:3.42857rem}.knowledge__hero-index p{margin:0}.knowledge__hero-index>a{grid-column:1/3;margin-top:.857143rem;padding-bottom:0}.knowledge__body{padding-top:1.42857rem;display:block}.knowledge__nav{gap:1.57143rem;margin-bottom:2rem;display:flex;position:static;overflow:auto}.knowledge__nav>p,.knowledge__nav .knowledge__back,.knowledge__nav small{display:none}.knowledge__nav>a{white-space:nowrap;gap:.428571rem}.knowledge__entries{grid-template-columns:1fr}.knowledge__entries>li{padding:1.57143rem}.knowledge__sections>section{margin-bottom:2.85714rem}.knowledge h2{font-size:1.71429rem}.knowledge__section-heading{gap:.857143rem}.knowledge__end{gap:1.42857rem}}