body.c3-eerduosi{--ed-ink:#263744;--ed-dark:#0a1e30;--ed-ice:#dce7ed;--ed-blue:#315a73;--ed-copper:#b66f3d;--ed-line:#c4cdd3;--ed-soft:#647581;--ed-serif:"Songti SC","SimSun",serif;background:#eaf0f2!important;color:var(--ed-ink);font-family:"Microsoft YaHei","PingFang SC",sans-serif;line-height:1.8;margin:0}.c3-eerduosi main{display:block;min-width:0;margin:0;padding:0}.c3-eerduosi main *,.c3-eerduosi main *:before,.c3-eerduosi main *:after{box-sizing:border-box}.c3-eerduosi main figure,.c3-eerduosi main h1,.c3-eerduosi main h2,.c3-eerduosi main h3,.c3-eerduosi main p{margin:0}.c3-eerduosi main img{max-width:100%;display:block}.c3-eerduosi main a{color:inherit;text-decoration:none}.c3-eerduosi main a:hover{text-decoration:underline;text-underline-offset:5px}.c3-eerduosi main button{cursor:pointer;font:inherit}.c3-eerduosi main a:focus-visible,.c3-eerduosi main button:focus-visible,.c3-eerduosi main summary:focus-visible,.c3-eerduosi main input:focus-visible{outline:3px solid #b66f3d;outline-offset:5px}.c3-eerduosi main [hidden]{display:none!important}
.ed6-wrap{width:min(1160px,calc(100% - 80px));margin-inline:auto}.ed6-crumb{display:flex;flex-wrap:wrap;gap:11px;align-items:center;font-size:12px;color:var(--ed-soft);padding:30px 0}.ed6-kicker{font-size:11px!important;line-height:1.8;letter-spacing:.13em;font-weight:700;color:var(--ed-blue)}.c3-eerduosi 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-eerduosi main h2{font-size:26px;line-height:1.6;font-weight:650;color:inherit}.c3-eerduosi main h3{font-size:19px;line-height:1.65;color:inherit}.ed6-meta{display:flex;flex-wrap:wrap;gap:8px 22px;font-size:12px;color:var(--ed-soft);margin-top:22px}.ed6-summary{font-size:15px;line-height:1.95;color:var(--ed-soft)}.ed6-summary:empty{display:none}.ed6-index-head{display:flex;justify-content:space-between;align-items:center;gap:24px;margin-bottom:30px}.ed6-index-head h2{margin-top:10px!important}.ed6-hint{font-size:12px;color:var(--ed-soft)}.ed6-link{display:inline-block;font-size:12px;font-weight:700;color:var(--ed-blue)!important;margin-top:18px}.ed6-compact,.ed6-tools button{padding:9px 16px;border:1px solid #9ab3c0;background:transparent;color:var(--ed-ink);flex-shrink:0}.ed6-compact[aria-pressed=true],.ed6-tools button[aria-pressed=true]{background:var(--ed-dark);color:var(--ed-ice)}.ed6-tools{display:flex;align-items:center;flex-wrap:wrap;gap:18px;font-size:13px;margin-bottom:30px}.ed6-tools>span{font-size:11px;color:var(--ed-soft)}.ed6-compact-view .ed6-industrial-entry .ed6-summary,.ed6-compact-view .ed6-specimen-card .ed6-summary{display:none}
.ed6-pager{display:flex;flex-wrap:wrap;gap:8px;margin-top:36px}.ed6-pager:empty{display:none}.ed6-pager a{min-width:40px;text-align:center;border:1px solid var(--ed-line);padding:8px 13px;background:#fffefa;font-size:13px}.ed6-pager a.active,.ed6-pager a.current,.ed6-pager a.is-active{background:var(--ed-dark);color:var(--ed-ice);border-color:var(--ed-dark)}
.ed6-prose{width:100%;max-width:740px;margin-inline:auto;font-size:17px;line-height:1.95;overflow-wrap:anywhere;color:#253d4b;scroll-margin-top:126px}.ed6-prose p{margin:1.15em 0!important}.ed6-prose h2{font-size:26px!important;line-height:1.6;margin:1.8em 0 .8em!important}.ed6-prose h3{font-size:21px!important;margin:1.5em 0 .6em!important}.ed6-prose h4{font-size:19px;margin:1.3em 0 .6em}.ed6-prose img{max-width:100%!important;height:auto!important;margin:24px auto}.ed6-prose a{color:#1e6180!important;text-decoration:underline!important;overflow-wrap:anywhere}.ed6-prose ul,.ed6-prose ol{padding-left:1.5em;list-style:revert}.ed6-prose li{margin:.5em 0}.ed6-prose table{display:block;max-width:100%;overflow:auto;border-collapse:collapse}.ed6-prose td,.ed6-prose th{padding:12px;border:1px solid var(--ed-line)}.ed6-prose blockquote{margin:24px 0;padding:16px 22px;border-left:3px solid var(--ed-blue);background:#e9f0f3}.ed6-prose pre{max-width:100%;overflow:auto;white-space:pre-wrap}.ed6-larger .ed6-prose,.ed6-larger .ed6-prose p,.ed6-larger .ed6-prose li{font-size:20px!important}
.ed6-related{padding-top:64px;padding-bottom:50px}.ed6-related>header{margin-bottom:26px}.ed6-related>div{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:28px}.ed6-related article{padding:22px 0;border-top:2px solid var(--ed-copper);border-bottom:1px solid var(--ed-line)}.ed6-related time{font-size:12px;color:var(--ed-soft)}.ed6-related h3{margin-top:12px!important}.ed6-related article>span{display:block;color:var(--ed-blue);margin-top:18px}.ed6-back{display:inline-block;font-size:13px;font-weight:700;margin-top:24px}.ed6-promo{margin-block:38px}.ed6-promo img{width:100%;height:auto}.ed6-columns{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));border-block:1px solid var(--ed-line);margin-block:30px}.ed6-columns a{display:flex;justify-content:space-between;gap:12px;padding:20px 17px;font-size:14px}.ed6-columns a+a{border-left:1px solid var(--ed-line)}.ed6-columns a[aria-current=page]{background:var(--ed-dark);color:var(--ed-ice)}.ed6-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}.ed6-note{border-top:1px solid var(--ed-line);padding-top:22px;margin-top:38px;font-size:14px}.ed6-note summary{cursor:pointer;font-weight:700}.ed6-note p{margin-top:16px!important;color:var(--ed-soft)}.ed6-endnote{margin-top:38px!important;border-top:1px solid var(--ed-line);padding-top:22px;font-size:13px;color:var(--ed-soft)}.ed6-skip{position:fixed;top:-100px;left:20px;z-index:100001;padding:12px 20px;background:#fff;color:var(--ed-ink)}.ed6-skip:focus{top:14px}#ed6-list{scroll-margin-top:120px}
@media(max-width:800px){.ed6-wrap{width:calc(100% - 40px)}.ed6-related>div{grid-template-columns:1fr;gap:20px}.ed6-related{padding-top:42px;padding-bottom:34px}.ed6-columns{grid-template-columns:1fr 1fr}.ed6-columns a:nth-child(3){border-left:0}.ed6-columns a:nth-child(n+3){border-top:1px solid var(--ed-line)}}
@media(max-width:520px){.ed6-wrap{width:calc(100% - 36px)}.ed6-crumb{gap:8px;padding:24px 0}.c3-eerduosi main h1{font-size:33px}.c3-eerduosi main h2{font-size:24px}.ed6-index-head{display:block}.ed6-compact{margin-top:18px}.ed6-hint{margin-top:14px!important}.ed6-meta{gap:7px 14px}.ed6-prose{font-size:16px}.ed6-prose h2{font-size:23px!important}.ed6-prose h3{font-size:20px!important}.ed6-promo{margin-block:28px}.ed6-columns a{padding:16px 12px;font-size:12px}.ed6-tools{gap:12px}}
@media(prefers-reduced-motion:reduce){.c3-eerduosi main *{animation:none!important;transition:none!important;scroll-behavior:auto!important}}