:root{
  --brick:#A9503F;--gold:#D9A15B;--dark:#241F1D;--bg:#F8F5F1;--bg2:#EFE8E1;--text:#332E2B;--muted:#746B65;--accent:#E07A3F;--white:#fff;--line:#DED4CA;--max:1220px;--radius:24px;
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;background:var(--bg);color:var(--text);line-height:1.75}img{max-width:100%;height:auto;display:block}a{color:var(--brick);text-decoration-thickness:1px;text-underline-offset:3px}a:hover{color:var(--accent)}button,input{font:inherit}.shell{width:min(var(--max),calc(100% - 48px));margin-inline:auto}.narrow-shell{width:min(860px,calc(100% - 48px));margin-inline:auto}.skip-link{position:fixed;left:12px;top:12px;z-index:1000;background:var(--dark);color:white;padding:8px 12px;transform:translateY(-150%)}.skip-link:focus{transform:none}.site-header{position:sticky;top:0;z-index:90;background:rgba(248,245,241,.95);backdrop-filter:blur(12px);border-bottom:1px solid rgba(169,80,63,.12)}.header-inner{min-height:76px;display:flex;align-items:center;gap:20px}.brand{display:flex;align-items:center;gap:11px;text-decoration:none;color:var(--dark);min-width:240px}.brand img{width:48px;height:48px;object-fit:cover;border-radius:50%}.brand strong{font-size:1.04rem;display:block}.brand small{display:block;color:var(--muted);font-size:.72rem}.primary-nav{display:flex;align-items:center;gap:4px;flex:1}.primary-nav a{text-decoration:none;color:var(--text);padding:8px 10px;border-radius:999px;font-size:.93rem;white-space:nowrap}.primary-nav a:hover,.primary-nav a.is-active{background:var(--bg2);color:var(--brick)}.search-open,.menu-toggle{border:1px solid var(--line);background:transparent;color:var(--text);border-radius:999px;padding:9px 14px;cursor:pointer}.menu-toggle{display:none}.search-open:hover{background:var(--brick);border-color:var(--brick);color:white}.modal-open{overflow:hidden}.search-modal[hidden]{display:none!important}.search-modal{position:fixed;inset:0;z-index:200;display:grid;place-items:center;padding:24px}.search-backdrop{position:absolute;inset:0;background:rgba(36,31,29,.66)}.search-dialog{position:relative;width:min(620px,100%);background:var(--bg);border-radius:28px;padding:34px;box-shadow:0 22px 70px rgba(0,0,0,.25)}.search-close{position:absolute;right:18px;top:16px;width:42px;height:42px;border:0;border-radius:50%;background:var(--bg2);cursor:pointer;font-size:1.5rem}.search-dialog h2{margin:0 48px 8px 0}.search-dialog p{color:var(--muted)}.search-row,.cover-search div,.search-page-form div{display:flex;gap:8px}.search-row input,.cover-search input,.search-page-form input{flex:1;min-width:0;padding:13px 15px;border:1px solid var(--line);border-radius:12px;background:white}.search-row button,.cover-search button,.search-page-form button{border:0;background:var(--accent);color:white;border-radius:12px;padding:12px 18px;cursor:pointer}.section-gap{margin-top:92px}.eyebrow,.kicker{font-size:.78rem;font-weight:800;letter-spacing:.12em;text-transform:uppercase;color:var(--brick);margin:0 0 8px}.lead{font-size:1.14rem;color:#5b504a;max-width:760px}.section-heading{max-width:780px;margin-bottom:28px}.section-heading.compact{max-width:650px}.section-heading h2,.page-intro h1,.device-hero h1,.article-body h1,.narrow-page h1,.error-page h1{font-family:Georgia,"Songti SC",serif;line-height:1.2;color:var(--dark)}.section-heading h2{font-size:clamp(2rem,3vw,3.2rem);margin:0 0 12px}.section-heading p:last-child{color:var(--muted)}.editor-cover{display:grid;grid-template-columns:1.02fr .98fr;gap:46px;align-items:center;padding-top:52px}.cover-copy h1{font-family:Georgia,"Songti SC",serif;font-size:clamp(2.6rem,5vw,5.3rem);line-height:1.05;margin:12px 0 20px;color:var(--dark);letter-spacing:-.03em}.cover-search{margin:28px 0 16px;max-width:620px}.cover-search label{display:block;font-size:.88rem;font-weight:700;margin-bottom:8px}.cover-links{display:flex;gap:18px;flex-wrap:wrap}.cover-visual{margin:0}.cover-visual img{border-radius:44px 44px 12px 44px;aspect-ratio:1.35;object-fit:cover}.cover-visual figcaption{color:var(--muted);font-size:.85rem;margin-top:10px}.headline-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.headline-item{background:var(--bg2);border-radius:20px;overflow:hidden}.headline-item.is-main{grid-column:span 2;grid-row:span 2}.headline-item img{width:100%;aspect-ratio:1.55;object-fit:cover}.headline-item.is-main img{aspect-ratio:1.8}.headline-item div{padding:22px}.headline-item h3{margin:0 0 8px;font-size:1.2rem}.headline-item p{color:var(--muted)}.headline-item.is-main h3{font-size:2rem}.content-band{background:var(--dark);color:#f6eee9;padding:76px 0}.content-band h2,.device-ribbon h2{color:white}.content-band .eyebrow,.device-ribbon .eyebrow{color:#e9b786}.split-story{display:grid;grid-template-columns:.88fr 1.12fr;gap:52px;align-items:center}.split-story p{color:#d6cbc4}.split-story img{border-radius:10px 38px 38px 38px;aspect-ratio:1.64;object-fit:cover}.inline-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:22px}.inline-actions a,.button-link{display:inline-flex;text-decoration:none;border-radius:999px;padding:10px 16px;background:var(--brick);color:white}.content-band .inline-actions a{background:#f0d8c4;color:var(--dark)}.horizontal-strip{display:grid;grid-auto-flow:column;grid-auto-columns:minmax(250px,1fr);gap:20px;overflow-x:auto;padding-bottom:14px;scroll-snap-type:x proximity}.horizontal-strip article{scroll-snap-align:start;border-top:1px solid var(--line);padding-top:14px}.horizontal-strip img{width:100%;aspect-ratio:1.5;object-fit:cover;border-radius:16px}.horizontal-strip h3{font-size:1.15rem;line-height:1.35;margin:6px 0}.horizontal-strip p{color:var(--muted);font-size:.92rem}.device-ribbon{background:var(--brick);color:#f9eee9;padding:58px 0}.device-ribbon-inner{display:grid;grid-template-columns:.8fr 1.2fr;align-items:center;gap:42px}.device-ribbon img{border-radius:36px 12px 36px 12px;aspect-ratio:2.05;object-fit:cover}.device-ribbon p{color:#f3dcd3}.device-ribbon .button-link{background:#f7e6da;color:var(--dark)}.mixed-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.mixed-card{border-bottom:1px solid var(--line);padding-bottom:18px}.mixed-card.large{grid-column:span 2}.mixed-card img{width:100%;aspect-ratio:1.5;object-fit:cover;border-radius:18px}.mixed-card.large img{aspect-ratio:1.8}.mixed-card span{display:block;color:var(--brick);font-size:.78rem;font-weight:700;margin-top:12px}.mixed-card h3{line-height:1.35;margin:5px 0}.mixed-card h3 a{text-decoration:none;color:var(--dark)}.mixed-card p{color:var(--muted);font-size:.92rem}.topic-index{background:var(--bg2);padding:52px;border-radius:38px}.topic-list{display:grid;grid-template-columns:1fr 1fr;gap:20px}.topic-list article{display:grid;grid-template-columns:160px 1fr;gap:18px;align-items:center;background:rgba(255,255,255,.45);padding:14px;border-radius:16px}.topic-list img{width:160px;height:100px;object-fit:cover;border-radius:12px}.topic-list h3{margin:0 0 5px}.topic-list h3 a{text-decoration:none;color:var(--dark)}.topic-list p{margin:0;color:var(--muted);font-size:.9rem}.text-index{margin-bottom:92px}.text-columns{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;border-top:1px solid var(--line);padding-top:28px}.text-columns h3{font-size:1rem;color:var(--dark)}.text-columns a{display:block;margin:12px 0;text-decoration:none}.site-footer{background:var(--dark);color:#d9cec7;padding:58px 0 22px}.footer-grid{display:grid;grid-template-columns:1.35fr repeat(3,1fr);gap:34px}.footer-grid h2{color:white;font-size:1rem}.footer-grid a{display:block;color:#dfb8aa;text-decoration:none;margin:8px 0}.footer-grid p{font-size:.9rem}.footer-bottom{margin-top:42px;padding-top:18px;border-top:1px solid #4d433f;display:flex;justify-content:space-between;gap:20px;align-items:center;font-size:.82rem}.back-top{border:1px solid #6c5d57;background:transparent;color:white;border-radius:999px;padding:7px 12px;cursor:pointer}.breadcrumb{padding:24px 0 0}.breadcrumb ol{display:flex;list-style:none;padding:0;margin:0;gap:8px;flex-wrap:wrap;font-size:.84rem;color:var(--muted)}.breadcrumb li:not(:last-child)::after{content:"/";margin-left:8px;color:#a79b94}.breadcrumb a{color:var(--muted);text-decoration:none}.inner-main{padding-bottom:92px}.page-intro,.device-hero{display:grid;grid-template-columns:1fr .9fr;gap:48px;align-items:center;padding-top:44px}.page-intro h1,.device-hero h1{font-size:clamp(2.4rem,4vw,4.6rem);margin:10px 0 18px}.page-intro img,.device-hero img{border-radius:34px 10px 34px 34px;aspect-ratio:1.48;object-fit:cover}.prose-layout{display:grid;grid-template-columns:minmax(0,1fr) 270px;gap:60px}.prose h2,.narrow-page h2,.article-body h2{font-family:Georgia,"Songti SC",serif;font-size:1.9rem;line-height:1.25;margin:42px 0 12px;color:var(--dark)}.prose h2:first-child{margin-top:0}.prose p,.narrow-page p,.article-body p{font-size:1.03rem;color:#4a423e}.callout{background:var(--bg2);border-left:4px solid var(--gold);padding:18px 20px;margin:28px 0;border-radius:0 12px 12px 0}.side-note{align-self:start;position:sticky;top:104px;border-top:3px solid var(--brick);padding-top:14px}.side-note h2{font-size:1rem}.side-note a{display:block;margin:12px 0;text-decoration:none}.editorial-list{display:grid;gap:0}.editorial-list article{display:grid;grid-template-columns:90px 1fr;gap:28px;padding:30px 0;border-top:1px solid var(--line);max-width:960px}.editorial-list article>span{font:700 2.8rem Georgia;color:#c7b6aa}.editorial-list h2{margin:0 0 12px;font-size:1.75rem}.editorial-list p{color:var(--muted)}.wide-feature{background:var(--bg2);padding:64px 0}.wide-feature-inner{display:grid;grid-template-columns:1.25fr .75fr;gap:46px;align-items:center}.wide-feature img{border-radius:12px 38px 12px 38px}.two-column-flow{display:grid;grid-template-columns:1fr 330px;gap:60px}.two-column-flow h2{font-size:1.8rem;margin:36px 0 10px}.two-column-flow h2:first-child{margin-top:0}.two-column-flow p{color:var(--muted)}.rank-note{background:var(--bg2);padding:26px;border-radius:20px;align-self:start}.rank-note h2{margin-top:0}.rank-note li{margin:14px 0}.text-band{background:var(--dark);color:white;padding:54px 0}.text-band h2{color:white}.text-band p{color:#d6cbc4}.topic-catalog article{display:grid;grid-template-columns:70px 280px 1fr;gap:24px;align-items:center;padding:24px 0;border-top:1px solid var(--line)}.topic-number{font:700 2rem Georgia;color:#bba79a}.topic-catalog img{width:280px;height:150px;object-fit:cover;border-radius:16px}.topic-catalog h2{margin:0 0 8px;font-size:1.45rem}.topic-catalog h2 a{text-decoration:none;color:var(--dark)}.topic-catalog p{color:var(--muted)}.prose-short{max-width:860px}.prose-short h2{font-family:Georgia,"Songti SC",serif;font-size:2rem}.device-hero{padding-top:44px}.device-steps{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.device-steps .section-heading{grid-column:1/-1}.device-steps article{border-top:4px solid var(--gold);background:var(--bg2);padding:24px;border-radius:0 0 18px 18px}.device-steps h3{font-size:1.25rem}.device-steps p{color:var(--muted)}.device-checklist{background:var(--dark);color:white;padding:62px 0}.device-checklist .shell{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}.device-checklist img{border-radius:36px}.device-checklist h2{font-size:2.2rem}.device-checklist li{margin:14px 0;color:#d8cbc5}.guide-timeline{max-width:920px}.guide-timeline article{display:grid;grid-template-columns:64px 1fr;gap:24px;position:relative;padding-bottom:36px}.guide-timeline article:not(:last-child)::before{content:"";position:absolute;left:27px;top:54px;bottom:0;width:1px;background:var(--line)}.guide-timeline article>span{width:56px;height:56px;border-radius:50%;display:grid;place-items:center;background:var(--brick);color:white;font-weight:800}.guide-timeline h2{margin:0 0 8px}.guide-timeline p{color:var(--muted)}.faq-list{max-width:900px}.faq-list details{border-top:1px solid var(--line);padding:18px 0}.faq-list details:last-child{border-bottom:1px solid var(--line)}.faq-list summary{cursor:pointer;font-weight:750;font-size:1.06rem;color:var(--dark)}.faq-list p{color:var(--muted);max-width:780px}.next-links{background:var(--bg2);padding:28px;border-radius:18px;max-width:900px}.narrow-page{max-width:900px;padding-top:56px;padding-bottom:40px}.narrow-page h1{font-size:clamp(2.3rem,4vw,4.2rem)}.narrow-page>img{width:100%;aspect-ratio:2.1;object-fit:cover;border-radius:30px;margin:26px 0 38px}.narrow-page code{background:var(--bg2);padding:2px 6px;border-radius:5px}.search-page{padding-top:62px;min-height:65vh}.search-page h1{font-family:Georgia,"Songti SC",serif;font-size:clamp(2.2rem,4vw,4rem)}.search-page-form{max-width:760px}.result-count{color:var(--muted);margin-top:30px}.search-results{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin-top:18px}.search-results article{background:var(--bg2);padding:22px;border-radius:16px}.search-results span{font-size:.75rem;color:var(--brick);font-weight:700}.search-results h2{font-size:1.2rem;line-height:1.35}.search-results h2 a{text-decoration:none;color:var(--dark)}.search-results p{color:var(--muted)}.empty-state{background:var(--bg2);padding:30px;border-radius:18px;margin-top:34px;max-width:820px}.article-main{padding:34px 0 92px}.article-body header h1{font-size:clamp(2.5rem,5vw,4.8rem);margin:10px 0 18px}.article-meta{display:flex;gap:18px;flex-wrap:wrap;color:var(--muted);font-size:.82rem;margin:18px 0}.article-body header>img{width:100%;aspect-ratio:1.8;object-fit:cover;border-radius:30px;margin:28px 0 40px}.article-body section{max-width:780px}.article-return{display:flex;flex-wrap:wrap;gap:12px;background:var(--bg2);padding:24px;border-radius:18px;margin:44px 0}.article-return h2{width:100%;margin:0 0 8px;font-size:1.4rem}.article-return a{background:white;padding:8px 12px;border-radius:999px;text-decoration:none}.related-reading{margin-top:60px;border-top:1px solid var(--line);padding-top:28px}.related-reading>div{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.related-reading article{background:var(--bg2);padding:18px;border-radius:16px}.related-reading span{font-size:.75rem;color:var(--brick)}.related-reading h3{font-size:1.05rem;line-height:1.4}.related-reading h3 a{text-decoration:none;color:var(--dark)}.related-reading p{font-size:.88rem;color:var(--muted)}.error-page{padding:100px 0 140px;min-height:65vh}.error-page h1{font-size:clamp(3rem,7vw,6rem);margin:4px 0 18px}.error-page p{max-width:720px;color:var(--muted)}.error-links{display:flex;gap:12px;flex-wrap:wrap;margin-top:26px}.error-links a{background:var(--bg2);padding:10px 15px;border-radius:999px;text-decoration:none}
@media(max-width:1100px){.primary-nav a{padding-inline:7px;font-size:.86rem}.brand{min-width:190px}.brand small{display:none}.mixed-grid{grid-template-columns:repeat(3,1fr)}.topic-list{grid-template-columns:1fr}.footer-grid{grid-template-columns:1.2fr 1fr 1fr}.footer-grid section:last-child{grid-column:2/4}.headline-grid{grid-template-columns:1fr 1fr}.headline-item.is-main{grid-column:span 2;grid-row:auto}}
@media(max-width:900px){.shell{width:min(100% - 32px,var(--max))}.menu-toggle{display:inline-flex;margin-left:auto}.primary-nav{display:none;position:absolute;left:16px;right:16px;top:70px;background:var(--bg);border:1px solid var(--line);border-radius:18px;padding:12px;box-shadow:0 16px 40px rgba(0,0,0,.12);flex-direction:column;align-items:stretch}.primary-nav.is-open{display:flex}.primary-nav a{padding:10px 12px}.search-open{padding:8px 11px}.editor-cover,.page-intro,.device-hero,.split-story,.device-ribbon-inner,.wide-feature-inner,.device-checklist .shell{grid-template-columns:1fr}.editor-cover{padding-top:34px}.cover-visual{order:-1}.cover-copy h1{font-size:clamp(2.5rem,8vw,4.5rem)}.headline-grid{grid-template-columns:1fr}.headline-item.is-main{grid-column:auto}.mixed-grid{grid-template-columns:1fr 1fr}.mixed-card.large{grid-column:span 2}.prose-layout,.two-column-flow{grid-template-columns:1fr}.side-note{position:static}.topic-catalog article{grid-template-columns:58px 190px 1fr}.topic-catalog img{width:190px;height:120px}.device-steps{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr}.footer-grid section:last-child{grid-column:auto}.related-reading>div{grid-template-columns:1fr}.search-results{grid-template-columns:1fr}}
@media(max-width:650px){.shell,.narrow-shell{width:calc(100% - 24px)}.site-header .brand{min-width:auto}.brand span small{display:none}.brand img{width:42px;height:42px}.brand strong{font-size:.92rem}.search-open{font-size:0;width:42px;height:42px;padding:0}.search-open::before{content:"搜";font-size:.86rem}.section-gap{margin-top:64px}.editor-cover{gap:22px}.cover-visual img{border-radius:28px 28px 8px 28px}.cover-links{flex-direction:column;gap:8px}.headline-grid,.mixed-grid,.topic-list,.text-columns,.footer-grid{grid-template-columns:1fr}.headline-item.is-main,.mixed-card.large{grid-column:auto}.headline-item.is-main h3{font-size:1.4rem}.topic-index{padding:26px 18px;border-radius:24px}.topic-list article{grid-template-columns:110px 1fr}.topic-list img{width:110px;height:90px}.horizontal-strip{grid-auto-columns:82%}.footer-bottom{align-items:flex-start;flex-direction:column}.page-intro,.device-hero{gap:24px}.page-intro h1,.device-hero h1{font-size:2.55rem}.editorial-list article{grid-template-columns:58px 1fr;gap:12px}.editorial-list article>span{font-size:2rem}.topic-catalog article{grid-template-columns:42px 1fr;gap:12px}.topic-catalog img{grid-column:2;width:100%;height:auto}.topic-catalog article>div:last-child{grid-column:2}.device-steps article{padding:20px}.guide-timeline article{grid-template-columns:48px 1fr;gap:14px}.guide-timeline article>span{width:44px;height:44px}.guide-timeline article:not(:last-child)::before{left:21px;top:44px}.search-row,.cover-search div,.search-page-form div{flex-direction:column}.article-body header h1{font-size:2.55rem}.article-meta{flex-direction:column;gap:4px}.search-dialog{padding:26px 18px}.section-heading h2{font-size:2.15rem}}
@media(max-width:390px){.header-inner{gap:8px}.brand span{display:none}.editor-cover .lead,.page-intro .lead,.device-hero .lead{font-size:1rem}.horizontal-strip{grid-auto-columns:88%}.topic-list article{grid-template-columns:1fr}.topic-list img{width:100%;height:auto}.cover-copy h1{font-size:2.35rem}.page-intro h1,.device-hero h1,.article-body header h1{font-size:2.25rem}}