html{--ne-1th16:#242314;--ne-tji9c:#6E6B53;--ne-plocq:#F8F8F6;color-scheme:light;--ne-60pzh:#D2451E;--ne-1sea2:#E0DFD6;--ne-11kf0:#D61C67;--ne-bhd8o:#FBFBF9;--ne-18qtl:#7E3110;--ne-jl0yr:#DE6937;--ne-1l2w6:#341609}
html{--ne-146sa:"Noto Serif SC","Source Han Serif SC","Songti SC","SimSun",serif;--ne-121eg:1.1rem;--ne-1ajf0:1200px;--ne-insry:4px;--ne-sdruj:"Source Han Sans CN","Noto Sans CJK SC","WenQuanYi Micro Hei","Microsoft YaHei",sans-serif}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-padding-top:4.3rem}
@media (prefers-reduced-motion:no-preference){html{scroll-behavior:smooth}}
body{color:var(--ne-1th16);overflow-wrap:anywhere;font:17px/1.85 var(--ne-sdruj);margin:0;background:var(--ne-plocq)}
a{color:var(--ne-18qtl);text-underline-offset:3px}
a:focus-visible,summary:focus-visible{outline:2px solid var(--ne-18qtl);outline-offset:3px;border-radius:3px}
svg{display:block}
h2,h3,h1{line-height:1.3;color:var(--ne-1th16);margin:0;font-family:var(--ne-146sa)}
.ne-mb0vu{padding:0 1.2rem;margin:0 auto;max-width:var(--ne-1ajf0)}
/* top bar */
.ne-13152{border-bottom:1px solid var(--ne-1sea2)}
.ne-13152 .ne-mb0vu{display:flex;gap:.95rem;height:3.35rem;justify-content:space-between;align-items:center}
.ne-v9z4j{color:var(--ne-1th16);min-width:0;display:flex;font-weight:700;font-size:.9rem;text-decoration:none;align-items:center;gap:.5rem}
.ne-v9z4j .ne-3tzed{width:26px;flex:none;height:26px}
.ne-14va8{font-size:.75rem;color:var(--ne-tji9c);white-space:nowrap}
/* intro */
.ne-ws5re{overflow:hidden;position:relative;background:radial-gradient(120% 90% at 85% 40%,color-mix(in srgb,var(--ne-jl0yr) 22%,var(--ne-plocq)),var(--ne-plocq) 70%)}
.ne-ws5re .ne-mb0vu{flex-direction:column;display:flex;min-height:min(78vh,640px);position:relative;padding-bottom:calc(var(--ne-121eg)*4);padding-top:calc(var(--ne-121eg)*4);justify-content:center}
.ne-18r4u{pointer-events:none;position:absolute;transform:translateY(-50%);right:-4%;top:50%;width:min(56%,700px)}
.ne-18r4u .ne-oaj3m{width:100%;height:auto}
.ne-1vpq6{position:relative;max-width:34.2rem}
.ne-abdrn{font-size:.75rem;color:var(--ne-18qtl);font-weight:700;margin:0 0 1.15rem;letter-spacing:.2em}
.ne-ws5re h1{letter-spacing:-.01em;line-height:1.12;font-weight:900;font-size:clamp(2.1rem,6.4vw,4.2rem)}
.ne-1t88j{line-height:1.7;color:var(--ne-tji9c);margin:1.35rem 0 1.9rem;font-size:clamp(1rem,2.2vw,1.25rem)}
.ne-1cmsd{background:var(--ne-jl0yr);display:inline-flex;padding:.75rem 1.35rem;align-self:flex-start;font-weight:700;text-decoration:none;color:var(--ne-1l2w6);align-items:center;border-radius:999px;gap:.55rem}
.ne-1cmsd svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:2.2}
.ne-1cmsd:hover{background:var(--ne-60pzh)}
/* layout */
.ne-8gn4a{display:grid;gap:calc(var(--ne-121eg)*4);grid-template-columns:220px minmax(0,1fr);align-items:start}
.ne-1gnlb{position:sticky;top:1.9rem;padding-top:calc(var(--ne-121eg)*4)}
.ne-gbpo9{color:var(--ne-tji9c);font-size:.7rem;letter-spacing:.24em;font-weight:700;margin:0 0 .75rem}
.ne-1gnlb ol{border-left:2px solid var(--ne-1sea2);padding:0;list-style:none;margin:0;counter-reset:ne-lfjim}
.ne-1gnlb li{counter-increment:ne-lfjim}
.ne-1gnlb .ne-1i857::after{counter-increment:ne-lfjim;content:""}
.ne-1gnlb .ne-1ktpo{counter-increment:none}
.ne-1gnlb a{padding:.4rem 0 .4rem .95rem;display:flex;color:var(--ne-tji9c);line-height:1.45;margin-left:-2px;border-left:2px solid transparent;gap:.65rem;text-decoration:none;font-size:.85rem}
.ne-1gnlb a::before{font-size:.75rem;flex:none;padding-top:.1rem;font-variant-numeric:tabular-nums;content:counter(ne-lfjim,decimal-leading-zero);font-weight:700;color:color-mix(in srgb,var(--ne-tji9c) 70%,transparent)}
.ne-1gnlb .ne-1ktpo a::before{content:"+"}
.ne-1gnlb a:hover{color:var(--ne-1th16)}
.ne-1gnlb a.ne-1l2w6{color:var(--ne-1th16);border-left-color:var(--ne-jl0yr);font-weight:700}
.ne-1gnlb a.ne-1l2w6::before{color:var(--ne-18qtl)}
.ne-n26zf{min-width:0;counter-reset:ne-109f8;max-width:43.7rem}
/* chapters */
.ne-9q42i,.ne-1nvck{padding:calc(var(--ne-121eg)*4.5) 0 calc(var(--ne-121eg)*1.5);border-bottom:1px solid var(--ne-1sea2)}
.ne-9q42i:not(.ne-sc5r0),.ne-1nvck{counter-increment:ne-109f8}
.ne-sc5r0{padding:0;border:0}
.ne-ysu28::before,.ne-1nvck::before{letter-spacing:-.02em;margin-bottom:.85rem;display:block;-webkit-text-stroke:1.5px var(--ne-jl0yr);font:900 clamp(2.85rem,7vw,4.35rem)/1 var(--ne-146sa);color:transparent;content:counter(ne-109f8,decimal-leading-zero)}
.ne-vjow7 h2,.ne-1nvck h2{font-size:clamp(1.45rem,3.4vw,2.1rem);font-weight:800;margin-bottom:1.15rem}
.ne-xiewg{color:var(--ne-tji9c);margin:-.4rem 0 1.7rem}
.ne-1nvck h3{margin:2.1rem 0 .55rem;font-size:1.15rem}
.ne-1nvck h3::before{display:inline-block;background:var(--ne-11kf0);content:"";border-radius:50%;width:.5rem;vertical-align:.18em;margin-right:.55rem;height:.5rem}
.ne-1nvck p{margin:0 0 1.15rem}
.ne-1nvck>p:first-of-type{color:var(--ne-1th16);font-size:1.12em}
.ne-1nvck ol,.ne-1nvck ul{padding-left:1.35rem;margin:0 0 1.25rem}
.ne-1nvck li{margin:.4rem 0}
.ne-1nvck li::marker{color:var(--ne-18qtl);font-weight:700}
/* downloads */
.ne-10v18{padding:0;list-style:none;margin:0;border-top:1px solid var(--ne-1sea2)}
.ne-10v18 a{color:var(--ne-1th16);padding:.95rem .4rem;display:grid;gap:.95rem;border-bottom:1px solid var(--ne-1sea2);grid-template-columns:2.45rem minmax(0,1fr) auto;text-decoration:none;align-items:center}
.ne-10v18 li:last-child a{border-bottom:0}
.ne-10v18 a:hover{background:color-mix(in srgb,var(--ne-jl0yr) 8%,transparent)}
.ne-10v18 svg{width:2.45rem;height:2.45rem;padding:.5rem;border-radius:var(--ne-insry);background:color-mix(in srgb,var(--ne-jl0yr) 14%,var(--ne-bhd8o));fill:none;stroke:var(--ne-18qtl);stroke-width:1.7}
.ne-10v18 b{display:block;font-size:1.05rem}
.ne-10v18 small{font-size:.8rem;display:block;color:var(--ne-tji9c);line-height:1.4}
.ne-10v18 em{font-size:.8rem;color:var(--ne-18qtl);font-weight:700;font-style:normal;white-space:nowrap}
/* steps */
.ne-c9swb h3{font-size:1.1rem;margin-bottom:1.15rem}
.ne-w8lwn{counter-reset:ne-1bqtz;padding:0;list-style:none;margin:0}
.ne-w8lwn li{column-gap:.85rem;grid-template-columns:3.05rem minmax(0,1fr);display:grid;padding:.95rem 0;counter-increment:ne-1bqtz;border-top:1px dashed var(--ne-1sea2)}
.ne-w8lwn li::before{content:counter(ne-1bqtz);color:var(--ne-18qtl);grid-row:span 2;font:800 1.9rem/1 var(--ne-146sa)}
.ne-w8lwn strong,.ne-w8lwn b{font-size:.95rem}
.ne-w8lwn p{margin:.2rem 0 0;color:var(--ne-tji9c);font-size:.9rem}
/* compare */
.ne-1u215{margin:0 -.2rem;overflow-x:auto}
.ne-d8pvx{width:100%;border-collapse:collapse;font-size:.9rem;min-width:28.5rem}
.ne-d8pvx caption{text-align:left;font-weight:700;caption-side:top;padding-bottom:.75rem}
.ne-d8pvx th,.ne-d8pvx td{text-align:left;border-bottom:1px solid var(--ne-1sea2);padding:.7rem .75rem;vertical-align:top}
.ne-d8pvx thead th{font-size:.8rem;color:var(--ne-tji9c);border-bottom:2px solid var(--ne-1th16);letter-spacing:.06em}
.ne-d8pvx tbody tr:nth-child(odd){background:color-mix(in srgb,var(--ne-bhd8o) 70%,transparent)}
/* notes */
.ne-14mlu{display:grid;gap:0}
.ne-kyckp{display:grid;column-gap:1.35rem;border-top:1px solid var(--ne-1sea2);grid-template-columns:7.15rem minmax(0,1fr);padding:1.25rem 0}
.ne-1qgvd{order:-1;grid-row:span 2;align-self:start;font-size:.75rem;font-weight:700;color:var(--ne-18qtl);padding:.2rem .5rem;border:1px solid currentColor;border-radius:var(--ne-insry);text-align:center;line-height:1.5}
.ne-kyckp.ne-m6bp1 .ne-1qgvd{color:var(--ne-11kf0)}
.ne-kyckp.ne-13e3c .ne-1qgvd{color:var(--ne-tji9c)}
.ne-kyckp h3{font-size:1.05rem}
.ne-kyckp p{margin:.35rem 0 0;color:var(--ne-tji9c);font-size:.9rem}
/* faq */
.ne-bbbdd details{border-top:1px solid var(--ne-1sea2)}
.ne-bbbdd details:last-of-type{border-bottom:1px solid var(--ne-1sea2)}
.ne-bbbdd summary{display:flex;cursor:pointer;font-size:1rem;gap:.95rem;padding:1.05rem 0;list-style:none;font-weight:700;justify-content:space-between}
.ne-bbbdd summary::-webkit-details-marker{display:none}
.ne-bbbdd summary::after{content:"+";flex:none;width:1.6rem;height:1.6rem;border-radius:50%;border:1px solid var(--ne-1sea2);display:grid;place-items:center;color:var(--ne-18qtl);font-weight:400}
.ne-bbbdd details[open] summary::after{content:"−";background:var(--ne-jl0yr);border-color:var(--ne-jl0yr);color:var(--ne-1l2w6)}
.ne-bbbdd details p{color:var(--ne-tji9c);margin:0 0 1.15rem}
/* glossary */
.ne-7jocl{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1px;margin:0;background:var(--ne-1sea2);border:1px solid var(--ne-1sea2);border-radius:var(--ne-insry);overflow:hidden}
.ne-7jocl div{background:var(--ne-plocq);padding:.95rem 1.05rem}
.ne-7jocl dt{font-weight:800;font-family:var(--ne-146sa)}
.ne-7jocl dd{line-height:1.65;color:var(--ne-tji9c);font-size:.85rem;margin:.3rem 0 0}
/* more */
.ne-1c2uf{padding:calc(var(--ne-121eg)*4.5) 0 calc(var(--ne-121eg)*3)}
.ne-1c2uf h2{margin-bottom:1.15rem;font-size:1.25rem}
.ne-i404l{display:grid;gap:1.9rem;grid-template-columns:repeat(2,minmax(0,1fr))}
.ne-1c2uf h3,.ne-yin18 h2{font-size:.75rem;color:var(--ne-tji9c);margin:0 0 .55rem;font-family:var(--ne-sdruj);letter-spacing:.2em}
.ne-1djhj{flex-direction:column;display:flex}
.ne-yin18 a,.ne-1djhj a{color:var(--ne-1th16);padding:.5rem 0;display:block;border-bottom:1px solid var(--ne-1sea2);font-size:.9rem;text-decoration:none}
.ne-yin18 a:hover,.ne-1djhj a:hover{color:var(--ne-18qtl)}
.ne-yin18{margin-top:1.9rem}
.ne-yin18 ul{padding:0;list-style:none;margin:0}
.ne-vnxng{flex-wrap:wrap;display:flex;gap:.5rem}
.ne-vnxng a{color:var(--ne-1th16);padding:.3rem .75rem;background:color-mix(in srgb,var(--ne-jl0yr) 12%,var(--ne-bhd8o));text-decoration:none;font-size:.85rem;border-radius:999px}
.ne-vnxng a:hover{background:var(--ne-jl0yr);color:var(--ne-1l2w6)}
/* footer */
.ne-65r9m{font-size:.8rem;color:var(--ne-tji9c);border-top:1px solid var(--ne-1sea2)}
.ne-65r9m .ne-mb0vu{flex-wrap:wrap;display:flex;padding-bottom:1.25rem;padding-top:1.25rem;gap:.5rem 1.45rem;justify-content:space-between}
.ne-65r9m p{margin:0}
.ne-xte53{position:fixed;right:.95rem;bottom:.95rem;z-index:20;display:inline-flex;align-items:center;gap:.35rem;padding:.5rem .85rem;border-radius:999px;background:var(--ne-bhd8o);border:1px solid var(--ne-1sea2);color:var(--ne-1th16);font-size:.8rem;text-decoration:none;box-shadow:0 6px 20px color-mix(in srgb,var(--ne-1th16) 14%,transparent);transition:opacity .2s,transform .2s}
.ne-xte53 svg{width:14px;height:14px;fill:none;stroke:currentColor;stroke-width:2.2}
.ne-ctrri .ne-xte53:not(.ne-1otno){pointer-events:none;visibility:hidden;transform:translateY(.55rem);opacity:0}
@media (max-width:900px){
.ne-8gn4a{grid-template-columns:minmax(0,1fr);gap:0}
.ne-1gnlb{top:0;z-index:15;padding:.5rem 0;margin:0 -1.25rem;background:color-mix(in srgb,var(--ne-plocq) 92%,transparent);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);border-bottom:1px solid var(--ne-1sea2)}
.ne-gbpo9{left:-999px;position:absolute}
.ne-1gnlb ol{display:flex;padding:0 1.2rem;gap:.4rem;scrollbar-width:none;border:0;overflow-x:auto}
.ne-1gnlb ol::-webkit-scrollbar{display:none}
.ne-1gnlb a{white-space:nowrap;max-width:14em;overflow:hidden;text-overflow:ellipsis;display:block;margin:0;padding:.35rem .8rem;border:1px solid var(--ne-1sea2);border-radius:999px;font-size:.8rem}
.ne-1gnlb a::before{margin-right:.4rem}
.ne-1gnlb a.ne-1l2w6{background:var(--ne-jl0yr);border-color:var(--ne-jl0yr);color:var(--ne-1l2w6)}
.ne-1gnlb a.ne-1l2w6::before{color:var(--ne-1l2w6)}
.ne-n26zf{max-width:none}
}
@media (max-width:640px){
body{font-size:16px}
.ne-14va8{display:none}
.ne-ws5re .ne-mb0vu{padding-top:calc(var(--ne-121eg)*3);min-height:0;padding-bottom:calc(var(--ne-121eg)*3)}
.ne-18r4u{transform:none;right:-55%;opacity:.22;top:auto;width:130%;bottom:-15%}
.ne-9q42i,.ne-1nvck{padding-top:calc(var(--ne-121eg)*3)}
.ne-kyckp{grid-template-columns:minmax(0,1fr)}
.ne-1qgvd{grid-row:auto;margin-bottom:.5rem;justify-self:start}
.ne-7jocl,.ne-i404l{grid-template-columns:minmax(0,1fr)}
.ne-10v18 em{display:none}
}
@media (prefers-reduced-motion:reduce){.ne-xte53{transition:none}}
.ne-19ug7 .ne-mb0vu{flex-direction:row-reverse}
.ne-7brwg{background:var(--ne-bhd8o)}
.ne-7brwg .ne-mb0vu{padding-top:calc(var(--ne-121eg)*3);min-height:0;padding-bottom:calc(var(--ne-121eg)*3)}
.ne-1yy5s{grid-template-columns:1fr}
.ne-1yy5s .ne-1gnlb{padding-top:calc(var(--ne-121eg)*2);position:static}
.ne-1yy5s .ne-1gnlb ol{flex-wrap:wrap;display:flex;gap:.3rem .5rem;border-left:0}
.ne-1yy5s .ne-1gnlb a{padding:.3rem .65rem;margin:0;border:1px solid var(--ne-1sea2);border-radius:var(--ne-insry)}
.ne-1yy5s .ne-1gnlb a.ne-1l2w6{border-color:var(--ne-jl0yr)}
.ne-rzrfq{flex-wrap:wrap;display:flex;gap:.5rem 1.45rem;justify-content:space-between}
.ne-rzrfq p{margin:0}


.ne-1cfvd{font-size:.8rem;color:var(--ne-tji9c);margin:.85rem 0 0}.ne-1cfvd span{opacity:.8;margin-right:.5rem}.ne-1cfvd a{color:var(--ne-tji9c)}
h1{text-wrap:balance}