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.prose{max-width:720px}.toc{position:sticky;top:116px;padding:22px;background:var(--cream);border-radius:14px}.toc h2{font:600 16px var(--sans);margin:0 0 20px}.toc ol{padding-left:20px;font-size:14px;color:var(--muted)}.toc .text-link{font-size:14px;margin-top:20px}.related{border-top:1px solid var(--line);margin-top:45px}.related>a{display:block;padding:14px 0;font-size:16px}.article-intro .sample{margin-top:24px}
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@media(max-width:360px){.wrap,.reading{width:calc(100% - 28px)}.hero h1{font-size:36px}.brand img{width:48px}.brand strong{font-size:19px}.brand small{font-size:8px}.hero .actions{gap:10px}.hero .actions .btn{padding-inline:16px;font-size:14px}.hero .actions .text-link{font-size:13px}.hero-visual{min-height:320px}.hero-visual>img{height:285px}.hero-caption strong{font-size:16px}.hero-caption span{font-size:11px}.contact-banner{width:calc(100% - 28px);padding:26px 18px}.wechat{gap:12px;padding:12px}.wechat>a{flex-basis:100px}.wechat img{width:100px;height:100px}.wechat strong{font-size:16px}.wechat p{font-size:13px!important}.email-pill{font-size:16px;padding-inline:18px}.form-card{padding:20px}.company-facts{padding:22px}.company-facts dl{grid-template-columns:75px 1fr;gap:15px 12px}.article-intro h1{font-size:29px}.footer-top{grid-template-columns:1fr}.footer-top>div:first-child{grid-column:auto}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important;animation:none!important}}
@media(forced-colors:active){*{scrollbar-color:auto}.btn,.service-card,.form-card{border:1px solid ButtonText}.text-link{text-decoration:underline}}


/* 联系区紧凑版：沿用页面容器宽度，收紧高度、二维码卡片与表单间距。 */
.contact-banner{padding:34px 40px;gap:36px;border-radius:22px;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr)}
.contact-banner .eyebrow{margin-bottom:10px}.contact-banner h2{font-size:34px;line-height:1.4}
.contact-banner p:not(.eyebrow){font-size:15px;line-height:1.8;margin-top:14px}
.contact-banner .wechat{padding:16px;gap:18px}.contact-banner .wechat>a{flex-basis:128px}
.contact-banner .wechat img{width:128px;height:128px}.contact-banner .wechat>div{min-width:0}
.form-wrap{padding-top:58px}
@media(max-width:1080px){.contact-banner{padding:30px 32px;gap:28px}.contact-banner h2{font-size:32px}.contact-banner .wechat{gap:14px}.contact-banner .wechat>a{flex-basis:112px}.contact-banner .wechat img{width:112px;height:112px}}
@media(max-width:900px){.contact-banner{grid-template-columns:1fr;gap:24px}.contact-banner .wechat{justify-self:start}.form-wrap{padding-top:46px}}
@media(max-width:640px){.contact-banner{padding:26px 24px;border-radius:18px;gap:22px}.contact-banner h2{font-size:29px}.contact-banner p:not(.eyebrow){font-size:14px;margin-top:12px}.contact-banner .wechat{padding:12px;gap:16px}.contact-banner .wechat>a{flex-basis:112px}.contact-banner .wechat img{width:112px;height:112px}.form-wrap{padding-top:38px}}
@media(max-width:360px){.contact-banner{padding:24px 18px}.contact-banner h2{font-size:27px}.contact-banner .wechat{gap:12px}.contact-banner .wechat>a{flex-basis:100px}.contact-banner .wechat img{width:100px;height:100px}}
/* 适合持续更新的指南目录 */
.catalog-section{padding-top:48px}.catalog-tools{margin-bottom:30px}.catalog-search{max-width:680px;margin-bottom:30px}.catalog-search label{display:block;font-size:14px;font-weight:600;margin-bottom:10px}.catalog-search-row{display:flex;gap:12px;align-items:center}.catalog-input{position:relative;flex:1;min-width:0}.catalog-input input{height:52px;padding-right:48px;border-radius:99px;padding-left:20px}.catalog-input input::-webkit-search-cancel-button{display:none}.catalog-clear{position:absolute;right:6px;top:6px;width:40px;height:40px;border:0;border-radius:50%;background:transparent;color:var(--muted);font-size:25px}.catalog-clear:hover{background:var(--mist);color:var(--deep)}.catalog-search .btn{min-height:52px}.catalog-categories{display:flex;gap:10px;flex-wrap:wrap}.catalog-categories button{border:1px solid var(--line);border-radius:99px;padding:10px 18px;min-height:46px;color:var(--ink);background:#fff;font-size:14px;transition:background .16s,border-color .16s}.catalog-categories button span{margin-left:9px;color:var(--muted);font-size:12px}.catalog-categories button:hover{background:var(--cream);border-color:var(--teal)}.catalog-categories button[aria-pressed=true]{background:var(--primary);border-color:var(--primary);color:white}.catalog-categories button[aria-pressed=true] span{color:#d4e5e3}.catalog-note{scroll-margin-top:110px}.catalog-note:focus{outline:none}.catalog-grid .article-symbol{display:none}.catalog-grid .guide-body{padding:28px}.catalog-grid .guide-body h2{font-size:23px}.catalog-grid .guide-body>p:not(.eyebrow){font-size:15px;line-height:1.8}.catalog-pagination{display:flex;justify-content:center;align-items:center;gap:8px;flex-wrap:wrap;margin-top:36px}.catalog-pagination a,.catalog-pagination span{display:inline-flex;align-items:center;justify-content:center;min-width:44px;min-height:44px;padding:8px 14px;border:1px solid var(--line);border-radius:9px;font-size:14px}.catalog-pagination a:hover{background:var(--mist);border-color:var(--teal)}.catalog-pagination [aria-current=page]{background:var(--primary);color:white;border-color:var(--primary)}.catalog-pagination [aria-disabled=true]{color:var(--muted);background:var(--cream)}.catalog-pagination .pagination-gap{border-color:transparent;min-width:20px;padding-inline:3px}.catalog-empty{text-align:center;padding:48px 24px;border:1px solid var(--line);border-radius:18px;background:var(--cream)}.catalog-empty h2{font-size:28px}.catalog-empty p{margin:16px 0 22px;color:var(--muted)}
@media(max-width:900px){.catalog-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:640px){.catalog-section{padding-top:32px}.catalog-tools{margin-bottom:24px}.catalog-search-row{gap:8px}.catalog-input input{font-size:15px;padding-left:15px}.catalog-search .btn{padding-inline:20px;font-size:15px}.catalog-categories{gap:8px}.catalog-categories button{padding:9px 14px;font-size:13px}.catalog-categories button span{margin-left:6px}.catalog-grid{grid-template-columns:1fr}.catalog-grid .guide-body{padding:24px}.catalog-grid .guide-body h2{font-size:22px}.catalog-empty{padding:32px 20px}.catalog-empty h2{font-size:25px}.catalog-pagination{gap:6px}.catalog-pagination a,.catalog-pagination span{padding:7px 11px}}

*{scrollbar-width:auto}