:root{--paper:#f8f7f4;--ink:#332d3f;--muted:#646b78;--line:#dededc;--orange:#b74c32;--rose:#96516c;--wash:#eceef0;--max:1240px}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:100px}body{margin:0;background:var(--paper);color:var(--ink);font-family:"Microsoft YaHei","PingFang SC",system-ui,sans-serif;font-size:16px;line-height:1.85}a{color:inherit;text-decoration:none}button,input{font:inherit}a,button{-webkit-tap-highlight-color:transparent}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid var(--orange);outline-offset:5px}img{display:block;width:100%;max-width:100%;height:auto}h1,h2,h3,p{margin-top:0}h1,h2,h3{line-height:1.45;letter-spacing:-.035em}h1{font-size:clamp(30px,3.15vw,46px);font-weight:650;line-height:1.4;margin-bottom:18px}h2{font-size:clamp(25px,2.5vw,35px);font-weight:650;margin-bottom:24px}h3{font-size:21px;font-weight:600;margin-bottom:12px}p{margin-bottom:16px}small{font-size:12px}button{cursor:pointer}.container{width:min(var(--max),calc(100% - 80px));margin-inline:auto}.site-header{background:rgba(248,247,244,.98);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:10}.header-inner{min-height:90px;display:flex;align-items:center;justify-content:space-between;gap:30px}.brand{display:flex;align-items:center;gap:13px;flex-shrink:0;font-size:19px;font-weight:650;line-height:1.5;letter-spacing:.02em}.brand img{width:46px;height:38px}.brand small{display:block;color:var(--muted);font-weight:400;font-size:10px;letter-spacing:.18em}.header-inner 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p{font-size:14px;color:var(--muted)}.icon{display:inline-block;flex-shrink:0;color:var(--orange);vertical-align:middle}.text-link{color:var(--orange);font-size:14px;font-weight:600;display:inline-flex;gap:16px;align-items:center}.text-link:hover{text-decoration:underline;text-underline-offset:5px}.split{display:grid;grid-template-columns:1fr 1fr;gap:65px;align-items:center}.split p{color:var(--muted);font-size:15px}.split>div{min-width:0}.photo{border-radius:5px}.check-list{list-style:none;padding:0;margin:0}.check-list li{display:flex;gap:17px;padding:15px 0;border-bottom:1px solid var(--line);font-size:14px}.check-list li b{font-weight:400;color:var(--rose);font-size:12px}.tone{background:#eeeef0}.cloud-feature{margin:0}.cloud-feature img{border-radius:5px}.cloud-feature figcaption{padding:18px 0 0;display:flex;justify-content:space-between;gap:40px;font-size:13px;color:var(--muted)}.cloud-feature figcaption 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img{display:block;width:100%;height:100%;object-fit:cover}.portrait-split{grid-template-columns:.76fr 1.24fr;gap:90px}.portrait{max-width:370px;margin:auto}.small-label{display:block;font-size:11px;color:var(--muted);margin-top:10px}.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:30px;counter-reset:steps}.step{border-top:1px solid var(--line);padding-top:20px}.step-number{font-size:13px;color:var(--rose);margin-bottom:17px;display:block}.step h3{font-size:18px}.step p{font-size:14px;color:var(--muted)}.faq-list{border-top:1px solid var(--line)}details{border-bottom:1px solid var(--line);padding:19px 0}summary{list-style:none;display:flex;align-items:center;justify-content:space-between;gap:20px;font-size:17px;font-weight:500;cursor:pointer}summary::-webkit-details-marker{display:none}summary::after{content:'+';font-size:24px;color:var(--orange)}details[open] summary::after{content:'−'}details p{font-size:14px;color:var(--muted);max-width:850px;margin:15px 35px 6px 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24px}.footer-top{display:flex;justify-content:space-between;gap:30px;padding-bottom:30px;border-bottom:1px solid #d5d4d2}.footer-title{font-size:18px;font-weight:600;margin-bottom:6px}.footer-top p:not(.footer-title){font-size:12px;color:var(--muted);margin:0}.footer-top nav{display:flex;flex-wrap:wrap;gap:25px;font-size:12px;align-items:center}.footer-top a:hover{text-decoration:underline}.footer-bottom{display:flex;justify-content:space-between;gap:20px;font-size:10px;color:var(--muted);padding-top:20px}.footer-bottom p{margin:0}.footer-bottom p span{display:inline-block;margin-left:18px}.breadcrumbs{font-size:12px;color:var(--muted);display:flex;flex-wrap:wrap;gap:12px;margin-bottom:38px}.breadcrumbs a:hover{color:var(--orange)}.page-intro{padding:32px 0 45px;border-bottom:1px solid var(--line)}.page-intro h1{max-width:950px}.lead{color:var(--muted);font-size:17px;max-width:850px;margin-bottom:0}.page-body{max-width:1000px;padding-bottom:65px}.content-section{padding:45px 0;border-bottom:1px solid var(--line)}.content-section h2{font-size:28px}.content-section h3{font-size:20px;margin:28px 0 12px}.content-section>p:not(.eyebrow),.content-section li{font-size:15px;color:var(--muted)}.clean-list{padding-left:22px;margin:18px 0 25px}.clean-list li{padding-left:6px;margin-bottom:11px}.page-photo{max-width:900px;margin:35px auto;border-radius:6px}.page-portrait{max-width:380px;margin:35px auto;border-radius:6px}.platform-nav{display:flex;flex-wrap:wrap;gap:12px;margin:30px 0}.platform-nav a{border:1px solid var(--line);padding:9px 20px;font-size:14px}.platform-nav a:hover{border-color:var(--orange);color:var(--orange)}.data-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 35px}.data-grid>div{border-top:1px solid var(--line);padding:20px 0}.data-grid dt{font-weight:600}.data-grid dd{margin:9px 0 0;font-size:14px;color:var(--muted)}.external-links{display:grid;grid-template-columns:repeat(5,1fr);gap:14px;margin-top:25px}.external-links a{border:1px solid var(--line);padding:12px 8px;text-align:center;color:var(--orange);font-size:14px}.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 235px;gap:65px;padding-top:35px;padding-bottom:65px}.article-content{min-width:0}.article-content .content-section{padding:30px 0}.article-content .content-section h2{font-size:25px}.article-content p,.article-content li{font-size:15px}.article-side{border-left:1px solid var(--line);padding-left:25px}.article-side p{font-size:12px;color:var(--muted)}.article-side a{display:block;font-size:14px;margin:20px 0;color:var(--orange)}.article-kicker{font-size:12px;letter-spacing:.12em;color:var(--rose);margin:25px 0 10px}.article-pagination{display:grid;grid-template-columns:1fr 1fr;gap:30px;border-top:1px solid var(--line);padding:25px 0}.article-pagination a{font-size:14px}.article-pagination small{display:block;color:var(--muted);margin-bottom:7px}.article-pagination div:last-child{text-align:right}.reading-hint{font-size:12px;color:var(--muted)}.article-content .metrics{grid-template-columns:1fr 1fr}.article-content .metric{padding:20px}.article-content .metric:nth-child(3){border-left:0;border-top:1px solid var(--line)}.article-content .metric:nth-child(4){border-top:1px solid var(--line)}.article-content .metric p{font-size:14px}
@media(min-width:1450px){.hero-copy h1{font-size:44px}}@media(max-width:1050px){.container{width:calc(100% - 48px)}.header-inner nav{gap:17px}.brand{font-size:17px;gap:8px}.brand img{width:39px}.hero-intro{gap:30px;grid-template-columns:1.55fr 1fr}.hero-copy h1{font-size:34px}.split{gap:35px}.portrait-split{gap:50px}.article-layout{gap:35px;grid-template-columns:minmax(0,1fr) 190px}.footer-bottom{display:block}.footer-bottom p span{margin:8px 16px 0 0}}
@media(max-width:760px){.container{width:calc(100% - 40px)}.header-inner{min-height:72px;gap:10px;flex-wrap:wrap}.brand{font-size:17px}.menu-toggle{display:block}.header-inner nav{display:none;width:100%;flex-direction:column;gap:0;padding:0 0 15px}.header-inner nav.is-open{display:flex}.header-inner nav a{padding:10px 0;border-width:1px}.hero{padding-top:28px}.hero-intro{grid-template-columns:1fr;gap:24px}.hero-copy h1{font-size:30px;line-height:1.45}.hero-copy p:not(.eyebrow):not(.micro){font-size:14px}.path-panel{padding-left:18px}.path-row{padding:8px 0}.path-panel>p{margin-bottom:7px}.hero-image{height:220px}.image-caption{font-size:10px;gap:15px}.image-caption span:last-child{display:none}.section{padding:48px 0}.section-heading{display:block;margin-bottom:25px}.section-heading p:last-child{margin-top:15px}.quick-grid{grid-template-columns:1fr;gap:0}.quick-item{padding:20px 0;border-right:0;border-bottom:1px solid var(--line)}.quick-item:first-child{padding-top:0}.quick-item p{margin-bottom:10px}.split,.portrait-split{grid-template-columns:1fr;gap:28px}.portrait{max-width:300px}.metrics{grid-template-columns:1fr 1fr}.metric,.metric+.metric{padding:20px 15px}.metric:nth-child(3){border-left:0;border-top:1px solid var(--line)}.metric:nth-child(4){border-top:1px solid var(--line)}.cloud-feature figcaption{display:block;font-size:12px}.cloud-feature figcaption b{display:block;margin-bottom:10px}.news-row{grid-template-columns:1fr;gap:22px;padding:28px 0}.news-row h3{font-size:21px}.news-row p{font-size:14px}.news-media{max-width:none}.steps{grid-template-columns:1fr 1fr;gap:25px}.two-cols{grid-template-columns:1fr;gap:12px}.entry-links{grid-template-columns:1fr;gap:15px}.entry-links a{padding:18px 0;border-bottom:0}.closing .container{display:block}.closing h2{font-size:24px}.closing .button{margin-top:25px}.footer-top{display:block}.footer-top nav{margin-top:25px;gap:18px}.footer-title{font-size:16px}.footer-bottom{font-size:10px}.page-intro{padding-top:25px;padding-bottom:30px}.breadcrumbs{margin-bottom:26px}.lead{font-size:15px}.content-section{padding:32px 0}.content-section h2{font-size:24px}.data-grid{grid-template-columns:1fr}.external-links{grid-template-columns:repeat(3,1fr);gap:10px}.external-links a{font-size:13px}.article-layout{display:block;padding-top:20px}.article-side{border:0;border-top:1px solid var(--line);padding:25px 0 0;margin-top:20px}.article-pagination{gap:18px}.article-pagination a{font-size:12px}.note{padding:17px}.note p{font-size:13px}.actions .button{padding:11px 16px;gap:12px}.page-photo{margin:25px auto}summary{font-size:16px}.article-content .metrics{grid-template-columns:1fr}.article-content .metric+.metric{border-left:0;border-top:1px solid var(--line)}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{transition:none!important}}

@media(min-width:761px){
.hero{padding-top:28px}
.hero-intro{margin-bottom:20px}
.hero-copy .eyebrow{font-size:11px;line-height:1.5;margin-bottom:8px}
.hero-copy h1{font-size:36px;line-height:1.25;margin-bottom:12px}
.hero-copy p:not(.eyebrow):not(.micro){font-size:13px;line-height:1.6;margin-bottom:4px}
.hero-copy .actions{margin:12px 0 8px}
.hero-copy .button{font-size:13px;padding:10px 20px}
.hero-copy .micro{font-size:10px;line-height:1.5}
.path-panel>p{font-size:11px;margin-bottom:7px}
.path-row{padding:10px 0}
.hero-image{height:280px}
.hero-image img{object-position:center 62%}
}

@media(min-width:1051px){.hero-image{height:300px}}