:root{--p-1ij:#782cce;--sf-1q1:#fdfdfc;--bg-1xa:#f9f8f6;--fg-1q6:#2b2717;--on-1k0:#faf8fb;--bd-j04:#e2dfd4;color-scheme:light;--mu-y9b:#6b6651;--p2-tmu:#6f3cdd;--a-1c0:#cb1ab7;--pt-x74:#4c1c82}
:root{--r-19p:4px;--w-1fk:1120px;--f-1lu:"HarmonyOS Sans SC","MiSans","PingFang SC","Microsoft YaHei",sans-serif;--hf-1wa:"Source Han Serif CN","Noto Serif CJK SC","STSong","SimSun",serif;--g-3um:1.2rem}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-padding-top:4.5rem}
@media (prefers-reduced-motion:no-preference){html{scroll-behavior:smooth}}
body{margin:0;background:var(--bg-1xa);color:var(--fg-1q6);font:17px/1.85 var(--f-1lu);overflow-wrap:anywhere}
a{text-underline-offset:3px;color:var(--pt-x74)}
a:focus-visible,summary:focus-visible{outline:2px solid var(--pt-x74);outline-offset:3px;border-radius:3px}
svg{display:block}
h1,h2,h3{margin:0;line-height:1.3;color:var(--fg-1q6);font-family:var(--hf-1wa)}
.in-dmg{padding:0 1.25rem;margin:0 auto;max-width:var(--w-1fk)}
/* top bar */
.bar-oss{border-bottom:1px solid var(--bd-j04)}
.bar-oss .in-dmg{gap:1rem;display:flex;justify-content:space-between;align-items:center;height:3.5rem}
.home-yhf{min-width:0;display:flex;align-items:center;gap:.55rem;color:var(--fg-1q6);text-decoration:none;font-size:.95rem;font-weight:700}
.home-yhf .logo-hry{flex:none;height:26px;width:26px}
.date-1yr{font-size:.8rem;white-space:nowrap;color:var(--mu-y9b)}
/* intro */
.intro-1lq{overflow:hidden;position:relative;background:radial-gradient(120% 90% at 85% 40%,color-mix(in srgb,var(--p-1ij) 22%,var(--bg-1xa)),var(--bg-1xa) 70%)}
.intro-1lq .in-dmg{display:flex;padding-bottom:calc(var(--g-3um)*4);justify-content:center;flex-direction:column;position:relative;padding-top:calc(var(--g-3um)*4);min-height:min(78vh,640px)}
.intro-art-11g{top:50%;transform:translateY(-50%);position:absolute;width:min(56%,700px);pointer-events:none;right:-4%}
.intro-art-11g .decor-s5j{width:100%;height:auto}
.intro-tx-1gp{position:relative;max-width:36rem}
.eyebrow-1ow{font-size:.8rem;letter-spacing:.2em;margin:0 0 1.2rem;font-weight:700;color:var(--pt-x74)}
.intro-1lq h1{letter-spacing:-.01em;font-size:clamp(2.2rem,6.4vw,4.4rem);line-height:1.12;font-weight:900}
.lede-qy6{font-size:clamp(1.05rem,2.2vw,1.3rem);margin:1.4rem 0 2rem;line-height:1.7;color:var(--mu-y9b)}
.start-1ib{align-self:flex-start;padding:.8rem 1.4rem;color:var(--on-1k0);align-items:center;border-radius:999px;display:inline-flex;text-decoration:none;gap:.6rem;font-weight:700;background:var(--p-1ij)}
.start-1ib svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:2.2}
.start-1ib:hover{background:var(--p2-tmu)}
/* layout */
.layout-1ch{display:grid;grid-template-columns:220px minmax(0,1fr);gap:calc(var(--g-3um)*4);align-items:start}
.toc-17t{position:sticky;top:2rem;padding-top:calc(var(--g-3um)*4)}
.toc-h-1an{letter-spacing:.24em;font-size:.7rem;margin:0 0 .8rem;color:var(--mu-y9b);font-weight:700}
.toc-17t ol{padding:0;list-style:none;margin:0;counter-reset:t-15p;border-left:2px solid var(--bd-j04)}
.toc-17t li{counter-increment:t-15p}
.toc-17t .toc-read-oqe::after{counter-increment:t-15p;content:""}
.toc-17t .toc-more-14e{counter-increment:none}
.toc-17t a{gap:.7rem;display:flex;border-left:2px solid transparent;line-height:1.45;text-decoration:none;padding:.4rem 0 .4rem 1rem;margin-left:-2px;color:var(--mu-y9b);font-size:.9rem}
.toc-17t a::before{font-variant-numeric:tabular-nums;flex:none;font-size:.8rem;padding-top:.1rem;color:color-mix(in srgb,var(--mu-y9b) 70%,transparent);content:counter(t-15p,decimal-leading-zero);font-weight:700}
.toc-17t .toc-more-14e a::before{content:"+"}
.toc-17t a:hover{color:var(--fg-1q6)}
.toc-17t a.on-1k0{color:var(--fg-1q6);border-left-color:var(--p-1ij);font-weight:700}
.toc-17t a.on-1k0::before{color:var(--pt-x74)}
.flow-xfq{max-width:46rem;min-width:0;counter-reset:c-1kz}
/* chapters */
.ch-it1,.article-me6{padding:calc(var(--g-3um)*4.5) 0 calc(var(--g-3um)*1.5);border-bottom:1px solid var(--bd-j04)}
.ch-it1:not(.ch-read-1jh),.article-me6{counter-increment:c-1kz}
.ch-read-1jh{padding:0;border:0}
.num-1uv::before,.article-me6::before{margin-bottom:.9rem;-webkit-text-stroke:1.5px var(--p-1ij);letter-spacing:-.02em;font:900 clamp(3rem,7vw,4.6rem)/1 var(--hf-1wa);content:counter(c-1kz,decimal-leading-zero);color:transparent;display:block}
.article-me6 h2,.ch-h-1fw h2{font-size:clamp(1.55rem,3.4vw,2.2rem);margin-bottom:1.2rem;font-weight:800}
.ch-sub-dfk{margin:-.4rem 0 1.8rem;color:var(--mu-y9b)}
.article-me6 h3{font-size:1.2rem;margin:2.2rem 0 .6rem}
.article-me6 h3::before{border-radius:50%;margin-right:.6rem;display:inline-block;width:.55rem;background:var(--a-1c0);vertical-align:.18em;height:.55rem;content:""}
.article-me6 p{margin:0 0 1.2rem}
.article-me6>p:first-of-type{font-size:1.12em;color:var(--fg-1q6)}
.article-me6 ul,.article-me6 ol{margin:0 0 1.3rem;padding-left:1.4rem}
.article-me6 li{margin:.4rem 0}
.article-me6 li::marker{font-weight:700;color:var(--pt-x74)}
/* downloads */
.plats-zqn{padding:0;list-style:none;margin:0;border-top:1px solid var(--bd-j04)}
.plats-zqn a{gap:1rem;display:grid;grid-template-columns:2.6rem minmax(0,1fr) auto;align-items:center;color:var(--fg-1q6);border-bottom:1px solid var(--bd-j04);text-decoration:none;padding:1rem .4rem}
.plats-zqn li:last-child a{border-bottom:0}
.plats-zqn a:hover{background:color-mix(in srgb,var(--p-1ij) 8%,transparent)}
.plats-zqn svg{width:2.6rem;height:2.6rem;padding:.55rem;border-radius:var(--r-19p);background:color-mix(in srgb,var(--p-1ij) 14%,var(--sf-1q1));fill:none;stroke:var(--pt-x74);stroke-width:1.7}
.plats-zqn b{font-size:1.1rem;display:block}
.plats-zqn small{font-size:.85rem;display:block;color:var(--mu-y9b);line-height:1.4}
.plats-zqn em{white-space:nowrap;font-size:.85rem;font-style:normal;font-weight:700;color:var(--pt-x74)}
/* steps */
.stepset-4rq h3{font-size:1.15rem;margin-bottom:1.2rem}
.steps-1na{padding:0;list-style:none;margin:0;counter-reset:s-xob}
.steps-1na li{display:grid;column-gap:.9rem;padding:1rem 0;counter-increment:s-xob;border-top:1px dashed var(--bd-j04);grid-template-columns:3.2rem minmax(0,1fr)}
.steps-1na li::before{content:counter(s-xob);font:800 2rem/1 var(--hf-1wa);grid-row:span 2;color:var(--pt-x74)}
.steps-1na strong,.steps-1na b{font-size:1rem}
.steps-1na p{margin:.2rem 0 0;font-size:.95rem;color:var(--mu-y9b)}
/* compare */
.tablewrap-8vo{margin:0 -.2rem;overflow-x:auto}
.compare-1d5{width:100%;border-collapse:collapse;font-size:.95rem;min-width:30rem}
.compare-1d5 caption{padding-bottom:.8rem;text-align:left;caption-side:top;font-weight:700}
.compare-1d5 td,.compare-1d5 th{padding:.75rem .8rem;text-align:left;vertical-align:top;border-bottom:1px solid var(--bd-j04)}
.compare-1d5 thead th{font-size:.8rem;border-bottom:2px solid var(--fg-1q6);letter-spacing:.06em;color:var(--mu-y9b)}
.compare-1d5 tbody tr:nth-child(odd){background:color-mix(in srgb,var(--sf-1q1) 70%,transparent)}
/* notes */
.notes-vyc{display:grid;gap:0}
.note-1s5{display:grid;border-top:1px solid var(--bd-j04);padding:1.3rem 0;column-gap:1.4rem;grid-template-columns:7.5rem minmax(0,1fr)}
.verdict-ddd{order:-1;grid-row:span 2;align-self:start;font-size:.8rem;font-weight:700;color:var(--pt-x74);padding:.2rem .55rem;border:1px solid currentColor;border-radius:var(--r-19p);text-align:center;line-height:1.5}
.note-1s5.con-1lb .verdict-ddd{color:var(--a-1c0)}
.note-1s5.tip-n-409 .verdict-ddd{color:var(--mu-y9b)}
.note-1s5 h3{font-size:1.1rem}
.note-1s5 p{margin:.35rem 0 0;font-size:.95rem;color:var(--mu-y9b)}
/* faq */
.faq-ur5 details{border-top:1px solid var(--bd-j04)}
.faq-ur5 details:last-of-type{border-bottom:1px solid var(--bd-j04)}
.faq-ur5 summary{gap:1rem;list-style:none;display:flex;justify-content:space-between;font-size:1.05rem;cursor:pointer;padding:1.1rem 0;font-weight:700}
.faq-ur5 summary::-webkit-details-marker{display:none}
.faq-ur5 summary::after{content:"+";flex:none;width:1.7rem;height:1.7rem;border-radius:50%;border:1px solid var(--bd-j04);display:grid;place-items:center;color:var(--pt-x74);font-weight:400}
.faq-ur5 details[open] summary::after{content:"−";background:var(--p-1ij);border-color:var(--p-1ij);color:var(--on-1k0)}
.faq-ur5 details p{margin:0 0 1.2rem;color:var(--mu-y9b)}
/* glossary */
.gloss-ho9{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1px;margin:0;background:var(--bd-j04);border:1px solid var(--bd-j04);border-radius:var(--r-19p);overflow:hidden}
.gloss-ho9 div{background:var(--bg-1xa);padding:1rem 1.1rem}
.gloss-ho9 dt{font-family:var(--hf-1wa);font-weight:800}
.gloss-ho9 dd{line-height:1.65;margin:.3rem 0 0;color:var(--mu-y9b);font-size:.9rem}
/* more */
.more-f1j{padding:calc(var(--g-3um)*4.5) 0 calc(var(--g-3um)*3)}
.more-f1j h2{font-size:1.3rem;margin-bottom:1.2rem}
.more-grid-g26{display:grid;gap:2rem;grid-template-columns:repeat(2,minmax(0,1fr))}
.more-f1j h3,.latest-flo h2{margin:0 0 .6rem;font-size:.8rem;font-family:var(--f-1lu);letter-spacing:.2em;color:var(--mu-y9b)}
.rel-km9{display:flex;flex-direction:column}
.rel-km9 a,.latest-flo a{padding:.5rem 0;color:var(--fg-1q6);border-bottom:1px solid var(--bd-j04);text-decoration:none;font-size:.95rem;display:block}
.latest-flo a:hover,.rel-km9 a:hover{color:var(--pt-x74)}
.latest-flo{margin-top:2rem}
.latest-flo ul{padding:0;list-style:none;margin:0}
.chips-1iy{display:flex;flex-wrap:wrap;gap:.5rem}
.chips-1iy a{border-radius:999px;color:var(--fg-1q6);padding:.3rem .8rem;text-decoration:none;background:color-mix(in srgb,var(--p-1ij) 12%,var(--sf-1q1));font-size:.9rem}
.chips-1iy a:hover{color:var(--on-1k0);background:var(--p-1ij)}
/* footer */
.foot-1mv{border-top:1px solid var(--bd-j04);font-size:.85rem;color:var(--mu-y9b)}
.foot-1mv .in-dmg{display:flex;padding-bottom:1.3rem;justify-content:space-between;flex-wrap:wrap;padding-top:1.3rem;gap:.5rem 1.5rem}
.foot-1mv p{margin:0}
.top-154{position:fixed;right:1rem;bottom:1rem;z-index:20;display:inline-flex;align-items:center;gap:.35rem;padding:.55rem .9rem;border-radius:999px;background:var(--sf-1q1);border:1px solid var(--bd-j04);color:var(--fg-1q6);font-size:.8rem;text-decoration:none;box-shadow:0 6px 20px color-mix(in srgb,var(--fg-1q6) 14%,transparent);transition:opacity .2s,transform .2s}
.top-154 svg{width:14px;height:14px;fill:none;stroke:currentColor;stroke-width:2.2}
.js-1gt .top-154:not(.show-uns){visibility:hidden;transform:translateY(.6rem);pointer-events:none;opacity:0}
@media (max-width:900px){
.layout-1ch{gap:0;grid-template-columns:minmax(0,1fr)}
.toc-17t{top:0;z-index:15;padding:.55rem 0;margin:0 -1.25rem;background:color-mix(in srgb,var(--bg-1xa) 92%,transparent);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);border-bottom:1px solid var(--bd-j04)}
.toc-h-1an{left:-999px;position:absolute}
.toc-17t ol{scrollbar-width:none;display:flex;gap:.4rem;overflow-x:auto;padding:0 1.25rem;border:0}
.toc-17t ol::-webkit-scrollbar{display:none}
.toc-17t a{white-space:nowrap;max-width:14em;overflow:hidden;text-overflow:ellipsis;display:block;margin:0;padding:.35rem .85rem;border:1px solid var(--bd-j04);border-radius:999px;font-size:.85rem}
.toc-17t a::before{margin-right:.4rem}
.toc-17t a.on-1k0{background:var(--p-1ij);border-color:var(--p-1ij);color:var(--on-1k0)}
.toc-17t a.on-1k0::before{color:var(--on-1k0)}
.flow-xfq{max-width:none}
}
@media (max-width:640px){
body{font-size:16px}
.date-1yr{display:none}
.intro-1lq .in-dmg{padding-bottom:calc(var(--g-3um)*3);min-height:0;padding-top:calc(var(--g-3um)*3)}
.intro-art-11g{width:130%;opacity:.22;bottom:-15%;right:-55%;transform:none;top:auto}
.article-me6,.ch-it1{padding-top:calc(var(--g-3um)*3)}
.note-1s5{grid-template-columns:minmax(0,1fr)}
.verdict-ddd{grid-row:auto;margin-bottom:.5rem;justify-self:start}
.more-grid-g26,.gloss-ho9{grid-template-columns:minmax(0,1fr)}
.plats-zqn em{display:none}
}
@media (prefers-reduced-motion:reduce){.top-154{transition:none}}
.bar-b-1yt .in-dmg{flex-direction:row-reverse}
.intro-plain-pmr{background:var(--sf-1q1)}
.intro-plain-pmr .in-dmg{padding-bottom:calc(var(--g-3um)*3);min-height:0;padding-top:calc(var(--g-3um)*3)}
.layout-top-r24{grid-template-columns:1fr}
.layout-top-r24 .toc-17t{position:static;padding-top:calc(var(--g-3um)*2)}
.layout-top-r24 .toc-17t ol{display:flex;gap:.3rem .5rem;border-left:0;flex-wrap:wrap}
.layout-top-r24 .toc-17t a{padding:.3rem .7rem;margin:0;border:1px solid var(--bd-j04);border-radius:var(--r-19p)}
.layout-top-r24 .toc-17t a.on-1k0{border-color:var(--p-1ij)}
.foot-row-8v3{display:flex;justify-content:space-between;flex-wrap:wrap;gap:.5rem 1.5rem}
.foot-row-8v3 p{margin:0}


.ext-1b9{margin:.9rem 0 0;font-size:.8rem;color:var(--mu-y9b)}.ext-1b9 span{opacity:.8;margin-right:.5rem}.ext-1b9 a{color:var(--mu-y9b)}
h1{text-wrap:balance}