body.c3-zhangjiakou{--zk-ink:#182945;--zk-dark:#10203b;--zk-cream:#e8edf7;--zk-blue:#2154a2;--zk-coral:#d67756;--zk-line:#c9ccd1;--zk-soft:#697586;--zk-serif:"Songti SC","SimSun",serif;background:#f2f0e9!important;color:var(--zk-ink);font-family:"Microsoft YaHei","PingFang SC",sans-serif;line-height:1.8;margin:0}.c3-zhangjiakou main{display:block;min-width:0;margin:0;padding:0}.c3-zhangjiakou main *,.c3-zhangjiakou main *:before,.c3-zhangjiakou main *:after{box-sizing:border-box}.c3-zhangjiakou main figure,.c3-zhangjiakou main h1,.c3-zhangjiakou main h2,.c3-zhangjiakou main h3,.c3-zhangjiakou main p{margin:0}.c3-zhangjiakou main img{max-width:100%;display:block}.c3-zhangjiakou main a{color:inherit;text-decoration:none}.c3-zhangjiakou main a:hover{text-decoration:underline;text-underline-offset:5px}.c3-zhangjiakou main button{cursor:pointer;font:inherit}.c3-zhangjiakou main a:focus-visible,.c3-zhangjiakou main button:focus-visible,.c3-zhangjiakou main summary:focus-visible,.c3-zhangjiakou main input:focus-visible{outline:3px solid #d67756;outline-offset:5px}.c3-zhangjiakou main [hidden]{display:none!important}
.zk6-wrap{width:min(1160px,calc(100% - 80px));margin-inline:auto}.zk6-crumb{display:flex;flex-wrap:wrap;gap:11px;align-items:center;font-size:12px;color:var(--zk-soft);padding:30px 0}.zk6-kicker{font-size:11px!important;line-height:1.8;letter-spacing:.13em;font-weight:700;color:var(--zk-blue)}.c3-zhangjiakou main h1{font-size:clamp(33px,4.7vw,58px);line-height:1.3;font-weight:700;color:inherit;letter-spacing:-.025em;overflow-wrap:anywhere}.c3-zhangjiakou main h2{font-size:26px;line-height:1.6;font-weight:650;color:inherit}.c3-zhangjiakou main h3{font-size:19px;line-height:1.65;color:inherit}.zk6-meta{display:flex;flex-wrap:wrap;gap:8px 22px;font-size:12px;color:var(--zk-soft);margin-top:22px}.zk6-summary{font-size:15px;line-height:1.95;color:var(--zk-soft)}.zk6-summary:empty{display:none}.zk6-index-head{display:flex;justify-content:space-between;align-items:center;gap:24px;margin-bottom:30px}.zk6-index-head h2{margin-top:10px!important}.zk6-hint{font-size:12px;color:var(--zk-soft)}.zk6-link{display:inline-block;font-size:12px;font-weight:700;color:var(--zk-blue)!important;margin-top:18px}.zk6-compact,.zk6-tools button{padding:9px 16px;border:1px solid #9ab3c0;background:transparent;color:var(--zk-ink);flex-shrink:0}.zk6-compact[aria-pressed=true],.zk6-tools button[aria-pressed=true]{background:var(--zk-dark);color:var(--zk-cream)}.zk6-tools{display:flex;align-items:center;flex-wrap:wrap;gap:18px;font-size:13px;margin-bottom:30px}.zk6-tools>span{font-size:11px;color:var(--zk-soft)}.zk6-compact-view .zk6-index-entry .zk6-summary,.zk6-compact-view .zk6-folder-card .zk6-summary{display:none}
.zk6-pager{display:flex;flex-wrap:wrap;gap:8px;margin-top:36px}.zk6-pager:empty{display:none}.zk6-pager a{min-width:40px;text-align:center;border:1px solid var(--zk-line);padding:8px 13px;background:#fffdf8;font-size:13px}.zk6-pager a.active,.zk6-pager a.current,.zk6-pager a.is-active{background:var(--zk-dark);color:var(--zk-cream);border-color:var(--zk-dark)}
.zk6-prose{width:100%;max-width:740px;margin-inline:auto;font-size:17px;line-height:1.95;overflow-wrap:anywhere;color:#253650;scroll-margin-top:126px}.zk6-prose p{margin:1.15em 0!important}.zk6-prose h2{font-size:26px!important;line-height:1.6;margin:1.8em 0 .8em!important}.zk6-prose h3{font-size:21px!important;margin:1.5em 0 .6em!important}.zk6-prose h4{font-size:19px;margin:1.3em 0 .6em}.zk6-prose img{max-width:100%!important;height:auto!important;margin:24px auto}.zk6-prose a{color:#2353a0!important;text-decoration:underline!important;overflow-wrap:anywhere}.zk6-prose ul,.zk6-prose ol{padding-left:1.5em;list-style:revert}.zk6-prose li{margin:.5em 0}.zk6-prose table{display:block;max-width:100%;overflow:auto;border-collapse:collapse}.zk6-prose td,.zk6-prose th{padding:12px;border:1px solid var(--zk-line)}.zk6-prose blockquote{margin:24px 0;padding:16px 22px;border-left:3px solid var(--zk-blue);background:#ebeff5}.zk6-prose pre{max-width:100%;overflow:auto;white-space:pre-wrap}.zk6-larger .zk6-prose,.zk6-larger .zk6-prose p,.zk6-larger .zk6-prose li{font-size:20px!important}
.zk6-related{padding-top:64px;padding-bottom:50px}.zk6-related>header{margin-bottom:26px}.zk6-related>div{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:28px}.zk6-related article{padding:22px 0;border-top:2px solid var(--zk-coral);border-bottom:1px solid var(--zk-line)}.zk6-related time{font-size:12px;color:var(--zk-soft)}.zk6-related h3{margin-top:12px!important}.zk6-related article>span{display:block;color:var(--zk-blue);margin-top:18px}.zk6-back{display:inline-block;font-size:13px;font-weight:700;margin-top:24px}.zk6-promo{margin-block:38px}.zk6-promo img{width:100%;height:auto}.zk6-columns{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));border-block:1px solid var(--zk-line);margin-block:30px}.zk6-columns a{display:flex;justify-content:space-between;gap:12px;padding:20px 17px;font-size:14px}.zk6-columns a+a{border-left:1px solid var(--zk-line)}.zk6-columns a[aria-current=page]{background:var(--zk-dark);color:var(--zk-cream)}.zk6-placeholder{min-height:150px;display:flex;align-items:center;justify-content:center;padding:24px;background:repeating-linear-gradient(135deg,#dce8ef 0,#dce8ef 1px,#f1f5f7 1px,#f1f5f7 14px);color:#536d7b;text-align:center}.zk6-note{border-top:1px solid var(--zk-line);padding-top:22px;margin-top:38px;font-size:14px}.zk6-note summary{cursor:pointer;font-weight:700}.zk6-note p{margin-top:16px!important;color:var(--zk-soft)}.zk6-endnote{margin-top:38px!important;border-top:1px solid var(--zk-line);padding-top:22px;font-size:13px;color:var(--zk-soft)}.zk6-skip{position:fixed;top:-100px;left:20px;z-index:100001;padding:12px 20px;background:#fff;color:var(--zk-ink)}.zk6-skip:focus{top:14px}#zk6-list{scroll-margin-top:120px}
@media(max-width:800px){.zk6-wrap{width:calc(100% - 40px)}.zk6-related>div{grid-template-columns:1fr;gap:20px}.zk6-related{padding-top:42px;padding-bottom:34px}.zk6-columns{grid-template-columns:1fr 1fr}.zk6-columns a:nth-child(3){border-left:0}.zk6-columns a:nth-child(n+3){border-top:1px solid var(--zk-line)}}
@media(max-width:520px){.zk6-wrap{width:calc(100% - 36px)}.zk6-crumb{gap:8px;padding:24px 0}.c3-zhangjiakou main h1{font-size:33px}.c3-zhangjiakou main h2{font-size:24px}.zk6-index-head{display:block}.zk6-compact{margin-top:18px}.zk6-hint{margin-top:14px!important}.zk6-meta{gap:7px 14px}.zk6-prose{font-size:16px}.zk6-prose h2{font-size:23px!important}.zk6-prose h3{font-size:20px!important}.zk6-promo{margin-block:28px}.zk6-columns a{padding:16px 12px;font-size:12px}.zk6-tools{gap:12px}}
@media(prefers-reduced-motion:reduce){.c3-zhangjiakou main *{animation:none!important;transition:none!important;scroll-behavior:auto!important}}

.zk6-compact-view .zk6-lead .zk6-summary{display:none}