:root{--wgw1x8g:#DFDCD8;--wgw1naw:#C32C50;--wgw1k0j:#211B12;--wgw1ha8:#FDFCFC;--wgw1oxb:#D53949;--wgw16jo:#FBF8F9;--wgw1dq4:#716656;--wgwwrrx:#7D1C33;color-scheme:light;--wgwuis1:#277E6D;--wgw8msx:#F9F8F6}
:root{--wgw1hd3:"HarmonyOS Sans SC","MiSans","PingFang SC","Microsoft YaHei",sans-serif;--wgw1xq6:26px;--wgw82os:1.25rem;--wgw1dci:1020px;--wgw2voa:"HarmonyOS Sans SC","MiSans","PingFang SC","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{overflow-wrap:anywhere;font:17px/1.85 var(--wgw2voa);margin:0;background:var(--wgw1ha8);color:var(--wgw1k0j)}
a{text-underline-offset:3px;color:var(--wgwwrrx)}
a:focus-visible,summary:focus-visible{outline:2px solid var(--wgwwrrx);outline-offset:3px;border-radius:3px}
svg{display:block}
h3,h2,h1{line-height:1.3;font-family:var(--wgw1hd3);margin:0;color:var(--wgw1k0j)}
.wgw1556{max-width:var(--wgw1dci);margin:0 auto;padding:0 1.2rem}
/* top bar */
.wgw1mqq{border-bottom:1px solid var(--wgw1x8g)}
.wgw1mqq .wgw1556{align-items:center;display:flex;gap:.95rem;justify-content:space-between;height:3.35rem}
.wgw1c68{align-items:center;display:flex;min-width:0;font-weight:700;font-size:.9rem;text-decoration:none;gap:.5rem;color:var(--wgw1k0j)}
.wgw1c68 .wgwcdb0{width:26px;flex:none;height:26px}
.wgw9943{white-space:nowrap;color:var(--wgw1dq4);font-size:.75rem}
/* intro */
.wgw1shf{background:radial-gradient(120% 90% at 85% 40%,color-mix(in srgb,var(--wgw1naw) 22%,var(--wgw1ha8)),var(--wgw1ha8) 70%);overflow:hidden;position:relative}
.wgw1shf .wgw1556{display:flex;position:relative;padding-top:calc(var(--wgw82os)*4);flex-direction:column;justify-content:center;min-height:min(78vh,640px);padding-bottom:calc(var(--wgw82os)*4)}
.wgwxrps{transform:translateY(-50%);top:50%;width:min(56%,700px);position:absolute;right:-4%;pointer-events:none}
.wgwxrps .wgw1nl9{height:auto;width:100%}
.wgwbbiy{position:relative;max-width:34.2rem}
.wgwt8v6{margin:0 0 1.15rem;letter-spacing:.2em;color:var(--wgwwrrx);font-size:.75rem;font-weight:700}
.wgw1shf h1{font-size:clamp(2.1rem,6.4vw,4.2rem);line-height:1.12;letter-spacing:-.01em;font-weight:900}
.wgw1cvd{line-height:1.7;font-size:clamp(1rem,2.2vw,1.25rem);color:var(--wgw1dq4);margin:1.35rem 0 1.9rem}
.wgwvef7{align-items:center;background:var(--wgw1naw);color:var(--wgw16jo);border-radius:999px;padding:.75rem 1.35rem;gap:.55rem;font-weight:700;text-decoration:none;align-self:flex-start;display:inline-flex}
.wgwvef7 svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:2.2}
.wgwvef7:hover{background:var(--wgw1oxb)}
/* layout */
.wgw1e58{display:grid;gap:calc(var(--wgw82os)*4);grid-template-columns:220px minmax(0,1fr);align-items:start}
.wgwdgqj{position:sticky;top:1.9rem;padding-top:calc(var(--wgw82os)*4)}
.wgwc0v6{letter-spacing:.24em;font-size:.7rem;color:var(--wgw1dq4);font-weight:700;margin:0 0 .75rem}
.wgwdgqj ol{list-style:none;counter-reset:wgw11tv;border-left:2px solid var(--wgw1x8g);padding:0;margin:0}
.wgwdgqj li{counter-increment:wgw11tv}
.wgwdgqj .wgwap79::after{content:"";counter-increment:wgw11tv}
.wgwdgqj .wgwr02t{counter-increment:none}
.wgwdgqj a{font-size:.85rem;padding:.4rem 0 .4rem .95rem;display:flex;margin-left:-2px;color:var(--wgw1dq4);border-left:2px solid transparent;line-height:1.45;text-decoration:none;gap:.65rem}
.wgwdgqj a::before{padding-top:.1rem;flex:none;font-size:.75rem;font-weight:700;color:color-mix(in srgb,var(--wgw1dq4) 70%,transparent);font-variant-numeric:tabular-nums;content:counter(wgw11tv,decimal-leading-zero)}
.wgwdgqj .wgwr02t a::before{content:"+"}
.wgwdgqj a:hover{color:var(--wgw1k0j)}
.wgwdgqj a.wgw16jo{color:var(--wgw1k0j);border-left-color:var(--wgw1naw);font-weight:700}
.wgwdgqj a.wgw16jo::before{color:var(--wgwwrrx)}
.wgwpejd{min-width:0;max-width:43.7rem;counter-reset:wgwi0w1}
/* chapters */
.wgw1upq,.wgw1dhh{padding:calc(var(--wgw82os)*4.5) 0 calc(var(--wgw82os)*1.5);border-bottom:1px solid var(--wgw1x8g)}
.wgw1upq:not(.wgwof07),.wgw1dhh{counter-increment:wgwi0w1}
.wgwof07{border:0;padding:0}
.wgw10s4::before,.wgw1dhh::before{margin-bottom:.85rem;display:block;content:counter(wgwi0w1,decimal-leading-zero);letter-spacing:-.02em;-webkit-text-stroke:1.5px var(--wgw1naw);font:900 clamp(2.85rem,7vw,4.35rem)/1 var(--wgw1hd3);color:transparent}
.wgw1dhh h2,.wgw16xv h2{font-size:clamp(1.45rem,3.4vw,2.1rem);margin-bottom:1.15rem;font-weight:800}
.wgw9f4d{color:var(--wgw1dq4);margin:-.4rem 0 1.7rem}
.wgw1dhh h3{font-size:1.15rem;margin:2.1rem 0 .55rem}
.wgw1dhh h3::before{content:"";margin-right:.55rem;background:var(--wgwuis1);border-radius:50%;display:inline-block;vertical-align:.18em;height:.5rem;width:.5rem}
.wgw1dhh p{margin:0 0 1.15rem}
.wgw1dhh>p:first-of-type{color:var(--wgw1k0j);font-size:1.12em}
.wgw1dhh ul,.wgw1dhh ol{padding-left:1.35rem;margin:0 0 1.25rem}
.wgw1dhh li{margin:.4rem 0}
.wgw1dhh li::marker{color:var(--wgwwrrx);font-weight:700}
/* downloads */
.wgw1cpf{list-style:none;padding:0;margin:0;border-top:1px solid var(--wgw1x8g)}
.wgw1cpf a{align-items:center;display:grid;gap:.95rem;padding:.95rem .4rem;grid-template-columns:2.45rem minmax(0,1fr) auto;border-bottom:1px solid var(--wgw1x8g);text-decoration:none;color:var(--wgw1k0j)}
.wgw1cpf li:last-child a{border-bottom:0}
.wgw1cpf a:hover{background:color-mix(in srgb,var(--wgw1naw) 8%,transparent)}
.wgw1cpf svg{width:2.45rem;height:2.45rem;padding:.5rem;border-radius:var(--wgw1xq6);background:color-mix(in srgb,var(--wgw1naw) 14%,var(--wgw8msx));fill:none;stroke:var(--wgwwrrx);stroke-width:1.7}
.wgw1cpf b{display:block;font-size:1.05rem}
.wgw1cpf small{font-size:.8rem;display:block;color:var(--wgw1dq4);line-height:1.4}
.wgw1cpf em{font-size:.8rem;white-space:nowrap;color:var(--wgwwrrx);font-weight:700;font-style:normal}
/* steps */
.wgw1es8 h3{margin-bottom:1.15rem;font-size:1.1rem}
.wgw18s6{list-style:none;padding:0;counter-reset:wgw1tjg;margin:0}
.wgw18s6 li{column-gap:.85rem;display:grid;border-top:1px dashed var(--wgw1x8g);counter-increment:wgw1tjg;padding:.95rem 0;grid-template-columns:3.05rem minmax(0,1fr)}
.wgw18s6 li::before{font:800 1.9rem/1 var(--wgw1hd3);color:var(--wgwwrrx);grid-row:span 2;content:counter(wgw1tjg)}
.wgw18s6 strong,.wgw18s6 b{font-size:.95rem}
.wgw18s6 p{color:var(--wgw1dq4);font-size:.9rem;margin:.2rem 0 0}
/* compare */
.wgww16z{margin:0 -.2rem;overflow-x:auto}
.wgw2fd4{width:100%;border-collapse:collapse;font-size:.9rem;min-width:28.5rem}
.wgw2fd4 caption{text-align:left;caption-side:top;padding-bottom:.75rem;font-weight:700}
.wgw2fd4 td,.wgw2fd4 th{vertical-align:top;text-align:left;padding:.7rem .75rem;border-bottom:1px solid var(--wgw1x8g)}
.wgw2fd4 thead th{font-size:.8rem;color:var(--wgw1dq4);letter-spacing:.06em;border-bottom:2px solid var(--wgw1k0j)}
.wgw2fd4 tbody tr:nth-child(odd){background:color-mix(in srgb,var(--wgw8msx) 70%,transparent)}
/* notes */
.wgwzuqw{display:grid;gap:0}
.wgw16h8{grid-template-columns:7.15rem minmax(0,1fr);display:grid;column-gap:1.35rem;padding:1.25rem 0;border-top:1px solid var(--wgw1x8g)}
.wgw1wtt{order:-1;grid-row:span 2;align-self:start;font-size:.75rem;font-weight:700;color:var(--wgwwrrx);padding:.2rem .5rem;border:1px solid currentColor;border-radius:var(--wgw1xq6);text-align:center;line-height:1.5}
.wgw16h8.wgwjff8 .wgw1wtt{color:var(--wgwuis1)}
.wgw16h8.wgwzmk5 .wgw1wtt{color:var(--wgw1dq4)}
.wgw16h8 h3{font-size:1.05rem}
.wgw16h8 p{margin:.35rem 0 0;color:var(--wgw1dq4);font-size:.9rem}
/* faq */
.wgwp7tf details{border-top:1px solid var(--wgw1x8g)}
.wgwp7tf details:last-of-type{border-bottom:1px solid var(--wgw1x8g)}
.wgwp7tf summary{display:flex;list-style:none;gap:.95rem;padding:1.05rem 0;justify-content:space-between;font-weight:700;font-size:1rem;cursor:pointer}
.wgwp7tf summary::-webkit-details-marker{display:none}
.wgwp7tf summary::after{content:"+";flex:none;width:1.6rem;height:1.6rem;border-radius:50%;border:1px solid var(--wgw1x8g);display:grid;place-items:center;color:var(--wgwwrrx);font-weight:400}
.wgwp7tf details[open] summary::after{content:"−";background:var(--wgw1naw);border-color:var(--wgw1naw);color:var(--wgw16jo)}
.wgwp7tf details p{margin:0 0 1.15rem;color:var(--wgw1dq4)}
/* glossary */
.wgw1ngv{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1px;margin:0;background:var(--wgw1x8g);border:1px solid var(--wgw1x8g);border-radius:var(--wgw1xq6);overflow:hidden}
.wgw1ngv div{background:var(--wgw1ha8);padding:.95rem 1.05rem}
.wgw1ngv dt{font-weight:800;font-family:var(--wgw1hd3)}
.wgw1ngv dd{font-size:.85rem;margin:.3rem 0 0;color:var(--wgw1dq4);line-height:1.65}
/* more */
.wgw1r5d{padding:calc(var(--wgw82os)*4.5) 0 calc(var(--wgw82os)*3)}
.wgw1r5d h2{margin-bottom:1.15rem;font-size:1.25rem}
.wgw1j0v{grid-template-columns:repeat(2,minmax(0,1fr));gap:1.9rem;display:grid}
.wgw1r5d h3,.wgw1iub h2{letter-spacing:.2em;font-family:var(--wgw2voa);color:var(--wgw1dq4);font-size:.75rem;margin:0 0 .55rem}
.wgw4mg1{display:flex;flex-direction:column}
.wgw4mg1 a,.wgw1iub a{padding:.5rem 0;display:block;font-size:.9rem;border-bottom:1px solid var(--wgw1x8g);text-decoration:none;color:var(--wgw1k0j)}
.wgw1iub a:hover,.wgw4mg1 a:hover{color:var(--wgwwrrx)}
.wgw1iub{margin-top:1.9rem}
.wgw1iub ul{list-style:none;padding:0;margin:0}
.wgw67ur{display:flex;flex-wrap:wrap;gap:.5rem}
.wgw67ur a{font-size:.85rem;padding:.3rem .75rem;background:color-mix(in srgb,var(--wgw1naw) 12%,var(--wgw8msx));border-radius:999px;text-decoration:none;color:var(--wgw1k0j)}
.wgw67ur a:hover{background:var(--wgw1naw);color:var(--wgw16jo)}
/* footer */
.wgw1xvz{font-size:.8rem;color:var(--wgw1dq4);border-top:1px solid var(--wgw1x8g)}
.wgw1xvz .wgw1556{padding-bottom:1.25rem;display:flex;justify-content:space-between;flex-wrap:wrap;padding-top:1.25rem;gap:.5rem 1.45rem}
.wgw1xvz p{margin:0}
.wgw1a01{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(--wgw8msx);border:1px solid var(--wgw1x8g);color:var(--wgw1k0j);font-size:.8rem;text-decoration:none;box-shadow:0 6px 20px color-mix(in srgb,var(--wgw1k0j) 14%,transparent);transition:opacity .2s,transform .2s}
.wgw1a01 svg{width:14px;height:14px;fill:none;stroke:currentColor;stroke-width:2.2}
.wgw9p0w .wgw1a01:not(.wgwzhsk){visibility:hidden;transform:translateY(.55rem);opacity:0;pointer-events:none}
@media (max-width:900px){
.wgw1e58{gap:0;grid-template-columns:minmax(0,1fr)}
.wgwdgqj{top:0;z-index:15;padding:.5rem 0;margin:0 -1.25rem;background:color-mix(in srgb,var(--wgw1ha8) 92%,transparent);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);border-bottom:1px solid var(--wgw1x8g)}
.wgwc0v6{left:-999px;position:absolute}
.wgwdgqj ol{scrollbar-width:none;display:flex;border:0;gap:.4rem;overflow-x:auto;padding:0 1.2rem}
.wgwdgqj ol::-webkit-scrollbar{display:none}
.wgwdgqj a{white-space:nowrap;max-width:14em;overflow:hidden;text-overflow:ellipsis;display:block;margin:0;padding:.35rem .8rem;border:1px solid var(--wgw1x8g);border-radius:999px;font-size:.8rem}
.wgwdgqj a::before{margin-right:.4rem}
.wgwdgqj a.wgw16jo{background:var(--wgw1naw);border-color:var(--wgw1naw);color:var(--wgw16jo)}
.wgwdgqj a.wgw16jo::before{color:var(--wgw16jo)}
.wgwpejd{max-width:none}
}
@media (max-width:640px){
body{font-size:16px}
.wgw9943{display:none}
.wgw1shf .wgw1556{padding-bottom:calc(var(--wgw82os)*3);padding-top:calc(var(--wgw82os)*3);min-height:0}
.wgwxrps{top:auto;opacity:.22;right:-55%;transform:none;width:130%;bottom:-15%}
.wgw1upq,.wgw1dhh{padding-top:calc(var(--wgw82os)*3)}
.wgw16h8{grid-template-columns:minmax(0,1fr)}
.wgw1wtt{margin-bottom:.5rem;justify-self:start;grid-row:auto}
.wgw1j0v,.wgw1ngv{grid-template-columns:minmax(0,1fr)}
.wgw1cpf em{display:none}
}
@media (prefers-reduced-motion:reduce){.wgw1a01{transition:none}}
.wgwcfni .wgw1556{flex-direction:row-reverse}
.wgwuxhj{background:var(--wgw8msx)}
.wgwuxhj .wgw1556{padding-bottom:calc(var(--wgw82os)*3);padding-top:calc(var(--wgw82os)*3);min-height:0}
.wgwo5bk{grid-template-columns:1fr}
.wgwo5bk .wgwdgqj{padding-top:calc(var(--wgw82os)*2);position:static}
.wgwo5bk .wgwdgqj ol{gap:.3rem .5rem;display:flex;flex-wrap:wrap;border-left:0}
.wgwo5bk .wgwdgqj a{padding:.3rem .65rem;margin:0;border:1px solid var(--wgw1x8g);border-radius:var(--wgw1xq6)}
.wgwo5bk .wgwdgqj a.wgw16jo{border-color:var(--wgw1naw)}
.wgw18rr{display:flex;justify-content:space-between;flex-wrap:wrap;gap:.5rem 1.45rem}
.wgw18rr p{margin:0}

.wgw10s4::before,.wgw1dhh::before{display:none}
.wgwmsts{font-size:.8rem;color:var(--wgw1dq4);margin:.85rem 0 0}.wgwmsts span{margin-right:.5rem;opacity:.8}.wgwmsts a{color:var(--wgw1dq4)}
h1{text-wrap:balance}