:root{--brand:#E85D75;--accent:#D94A63;--orange:#F2A65A;--ink:#252833;--text:#34343C;--muted:#72727D;--bg:#FFF9F7;--soft:#F6F1F0;--line:#E9DDDA;--white:#fff;--radius:18px;--wrap:1160px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;color:var(--text);background:var(--bg);line-height:1.75}img{max-width:100%;height:auto;display:block}a{color:inherit;text-decoration:none}button,input{font:inherit}.wrap{width:min(var(--wrap),calc(100% - 40px));margin:auto}.skip{position:absolute;left:-9999px}.skip:focus{left:20px;top:20px;background:#fff;padding:10px 14px;z-index:999}.site-header{position:sticky;top:0;z-index:50;background:rgba(255,249,247,.95);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}.header-inner{min-height:72px;display:flex;align-items:center;gap:22px}.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.25rem;color:var(--ink);white-space:nowrap}.brand img{width:38px;height:38px;object-fit:contain}.main-nav{display:flex;gap:4px;flex:1;justify-content:center}.main-nav a{padding:10px 11px;border-radius:10px;color:#4c4b54;font-size:.94rem}.main-nav a:hover,.main-nav a[aria-current=page]{background:var(--soft);color:var(--accent)}.search-open,.menu-toggle{border:0;background:var(--ink);color:#fff;border-radius:10px;padding:9px 13px;cursor:pointer}.menu-toggle{display:none}.brand-entry{padding:82px 0 54px;background:linear-gradient(180deg,#fff 0%,var(--bg) 100%)}.entry-inner{max-width:880px;text-align:center}.eyebrow{font-size:.84rem;letter-spacing:.12em;text-transform:uppercase;color:var(--accent);font-weight:800;margin:0 0 12px}.brand-entry h1,.page-hero h1{font-size:clamp(2.1rem,5vw,4.7rem);line-height:1.1;letter-spacing:-.035em;color:var(--ink);margin:0 0 24px}.brand-entry .lead{max-width:760px;margin:0 auto;color:var(--muted);font-size:1.08rem}.entry-actions{display:flex;justify-content:center;flex-wrap:wrap;gap:12px;margin-top:28px}.btn{display:inline-flex;align-items:center;justify-content:center;padding:12px 18px;border-radius:12px;font-weight:700}.btn.primary{background:var(--accent);color:#fff}.btn.ghost{border:1px solid var(--line);background:#fff}.btn.soft{background:var(--soft);color:var(--accent)}.quick-strip{padding:0 0 46px}.quick-grid{display:grid;grid-template-columns:repeat(3,1fr);border:1px solid var(--line);border-radius:20px;overflow:hidden;background:#fff}.quick-item{display:flex;gap:14px;padding:18px;border-right:1px solid var(--line);align-items:center}.quick-item:last-child{border-right:0}.quick-item img{width:86px;height:68px;object-fit:cover;border-radius:12px}.quick-item strong,.quick-item small{display:block}.quick-item strong{color:var(--ink);margin-bottom:4px}.quick-item small{color:var(--muted);line-height:1.5}.section{padding:72px 0}.section.tint{background:var(--soft)}.section.narrow .wrap,.closing .wrap{max-width:820px;text-align:center}.split{display:grid;grid-template-columns:1.05fr .95fr;gap:54px;align-items:center}.split figure,.content-feature figure{margin:0}.split figure img,.content-feature figure img{border-radius:22px;aspect-ratio:16/10;object-fit:cover}.split figcaption,.content-feature figcaption{font-size:.85rem;color:var(--muted);margin-top:10px}.section h2,.reading-block h2,.wide-note h2{font-size:clamp(1.65rem,3vw,2.5rem);line-height:1.25;color:var(--ink);margin:0 0 16px}.section-head{max-width:760px;margin-bottom:28px}.text-link{display:inline-block;margin-top:12px;color:var(--accent);font-weight:700}.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:18px;overflow:hidden}.steps article{background:#fff;padding:26px}.steps span{font-weight:800;color:var(--brand)}.steps h3{color:var(--ink);line-height:1.35}.steps p{color:var(--muted);font-size:.95rem}.device-band{display:grid;grid-template-columns:.7fr 1.3fr;gap:42px;align-items:center}.device-band>img{border-radius:22px;aspect-ratio:4/5;object-fit:cover}.two-notes{display:grid;grid-template-columns:1fr 1fr;gap:18px}.two-notes article{border-top:3px solid var(--orange);padding-top:16px}.two-notes h3{color:var(--ink)}.two-notes a{color:var(--accent);font-weight:700}.compact-faq{border-top:1px solid var(--line)}details{border-bottom:1px solid var(--line);padding:16px 0}summary{cursor:pointer;font-weight:700;color:var(--ink)}details p{color:var(--muted);max-width:820px}.editorial-index{display:grid;grid-template-columns:.85fr 1.15fr;gap:42px;align-items:start}.editorial-index img{border-radius:22px}.editorial-index>div:last-child>a{display:grid;grid-template-columns:1fr 1.2fr;gap:18px;padding:18px 0;border-top:1px solid var(--line)}.editorial-index strong{color:var(--ink)}.editorial-index span{color:var(--muted)}.closing{border-top:1px solid var(--line)}.site-footer{background:var(--ink);color:#ddd;padding:52px 0 22px}.footer-grid{display:grid;grid-template-columns:1.5fr repeat(3,1fr);gap:34px}.footer-grid h2{font-size:1rem;color:#fff}.footer-grid a{display:block;color:#c8c8cf;margin:8px 0;font-size:.92rem}.footer-brand{font-size:1.5rem;color:#fff}.footer-bottom{display:flex;justify-content:space-between;border-top:1px solid #454752;margin-top:34px;padding-top:18px;font-size:.85rem}.inner{padding-bottom:70px}.breadcrumb{padding:20px 0}.breadcrumb ol{list-style:none;display:flex;gap:8px;padding:0;margin:0;color:var(--muted);font-size:.88rem}.breadcrumb li+li:before{content:'/';margin-right:8px}.page-hero{padding:44px 0 50px;max-width:900px}.page-hero h1{font-size:clamp(2rem,4.5vw,4rem)}.page-hero p:last-child{font-size:1.06rem;color:var(--muted);max-width:780px}.content-feature{display:grid;grid-template-columns:1.2fr .8fr;gap:46px;align-items:start;padding:32px 0 60px}.topic-points{border-top:1px solid var(--line)}.topic-points article{padding:18px 0;border-bottom:1px solid var(--line)}.topic-points h3{margin:0;color:var(--ink)}.topic-points p{margin:6px 0;color:var(--muted)}.reading-block{max-width:860px;padding:46px 0}.ordered{padding-left:24px}.ordered li{margin:12px 0;padding-left:8px}.wide-note{background:var(--soft);border-radius:24px;overflow:hidden;display:grid;grid-template-columns:.7fr 1.3fr;margin:30px 0 50px}.wide-note img{width:100%;height:100%;object-fit:cover;min-height:280px}.wide-note>div{padding:34px}.link-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}.link-row a{border:1px solid var(--line);background:#fff;border-radius:10px;padding:9px 12px;color:var(--accent);font-weight:700}.faq-layout{display:grid;grid-template-columns:1fr 320px;gap:44px}.faq-main details{padding:20px 0}.side-note{background:var(--soft);border-radius:18px;padding:18px;align-self:start;position:sticky;top:96px}.side-note img{border-radius:14px;margin-bottom:18px}.side-note a{display:block;color:var(--accent);font-weight:700;padding:8px 0}.article-wrap{max-width:900px}.article header{padding:40px 0 24px}.article h1{font-size:clamp(2rem,4vw,3.5rem);line-height:1.2;color:var(--ink)}.article .lead{font-size:1.08rem;color:var(--muted)}.article section{padding:22px 0}.article h2{font-size:1.7rem;color:var(--ink)}.next-box{margin-top:30px;padding:24px!important;background:var(--soft);border-radius:18px}.inline-search{display:flex;gap:10px;align-items:end;max-width:700px;margin-bottom:34px}.inline-search label{position:absolute;left:-9999px}.inline-search input{flex:1;border:1px solid var(--line);background:#fff;border-radius:10px;padding:12px}.inline-search button{border:0;background:var(--accent);color:#fff;border-radius:10px;padding:12px 18px}.search-results article{padding:18px 0;border-top:1px solid var(--line)}.search-results h3{margin:0}.search-results h3 a{color:var(--ink)}.search-results p{color:var(--muted)}.not-found{max-width:760px;text-align:center;padding:70px 0}.not-found img{max-width:420px;margin:0 auto 28px;border-radius:20px}.search-modal[hidden]{display:none!important}.search-modal{position:fixed;inset:0;background:rgba(37,40,51,.55);z-index:100;display:grid;place-items:start center;padding-top:12vh}.search-panel{width:min(620px,calc(100% - 30px));background:#fff;border-radius:18px;padding:28px;position:relative}.search-close{position:absolute;right:16px;top:12px;border:0;background:transparent;font-size:2rem}.search-row{display:flex;gap:8px}.search-row input{flex:1;border:1px solid var(--line);border-radius:10px;padding:11px}.search-row button{border:0;background:var(--accent);color:#fff;border-radius:10px;padding:0 16px}body.modal-open{overflow:hidden}
@media(max-width:1024px){.main-nav{gap:0}.main-nav a{padding:9px 7px;font-size:.88rem}.quick-grid{grid-template-columns:1fr}.quick-item{border-right:0;border-bottom:1px solid var(--line)}.quick-item:last-child{border-bottom:0}.steps{grid-template-columns:1fr 1fr}.content-feature,.faq-layout{grid-template-columns:1fr}.side-note{position:static}.footer-grid{grid-template-columns:1.4fr 1fr 1fr}.footer-grid>div:last-child{grid-column:2/4}}
@media(max-width:768px){.wrap{width:min(100% - 28px,var(--wrap))}.header-inner{min-height:64px}.menu-toggle{display:block;margin-left:auto}.search-open{padding:8px 10px}.main-nav{display:none;position:absolute;left:14px;right:14px;top:66px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:8px;box-shadow:0 12px 30px rgba(0,0,0,.08)}.main-nav.open{display:grid}.main-nav a{padding:10px}.brand-entry{padding-top:56px}.split,.device-band,.editorial-index,.wide-note{grid-template-columns:1fr}.steps{grid-template-columns:1fr}.two-notes{grid-template-columns:1fr}.editorial-index>div:last-child>a{grid-template-columns:1fr}.wide-note img{max-height:300px}.footer-grid{grid-template-columns:1fr 1fr}.footer-grid>div:last-child{grid-column:auto}.faq-layout{display:block}.side-note{margin-top:30px}}
@media(max-width:600px){.brand span{font-size:1.05rem}.brand img{width:34px;height:34px}.brand-entry h1{font-size:2.25rem}.entry-actions{display:grid}.btn{width:100%}.quick-item{align-items:flex-start}.quick-item img{width:72px;height:60px}.section{padding:52px 0}.footer-grid{grid-template-columns:1fr}.footer-bottom{display:block}.footer-bottom a{display:block;margin-top:8px}.page-hero{padding-top:24px}.search-row{display:grid}.inline-search{display:grid}.article h1{font-size:2rem}}
@media(max-width:375px){.wrap{width:calc(100% - 22px)}.search-open{font-size:.85rem}.menu-toggle{font-size:.85rem}.brand-entry h1{font-size:2rem}.quick-item{display:block}.quick-item img{width:100%;height:auto;aspect-ratio:16/9;margin-bottom:10px}}

.comparison{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-bottom:44px}.comparison article{background:#fff;border:1px solid var(--line);border-radius:18px;padding:24px}.comparison h2{color:var(--ink)}.comparison p{color:var(--muted)}.comparison a{color:var(--accent);font-weight:700}@media(max-width:768px){.comparison{grid-template-columns:1fr}}