#content{width:62.5rem;max-width:100%;margin:0 auto}.chinese-header{position:relative;width:100vw;left:50%;right:50%;margin-inline:-50vw;padding-inline:calc(50vw - 50%);background:#e0ded7}.chinese-header a{color:inherit;text-decoration:none}.chinese-header a:focus{text-decoration:underline}.chinese-header ul{list-style:none;padding:0;margin:0}.chinese-header ul ::marker{content:none}.chinese-header li{padding-left:0}.chinese-header .top-level-li{padding:0}@media(width >= 64rem){.chinese-header .top-level-li:first-child .top-level-a{padding-left:0}}.chinese-header .top-level-a{font-weight:bold;border-left:1px solid rgba(0,0,0,0);border-right:1px solid rgba(0,0,0,0);display:flex;padding:.5rem 1rem}.chinese-header .top-level-a:hover,.open .chinese-header .top-level-a{color:var(--purple)}.chinese-header .current .top-level-a{color:var(--purple)}.chinese-header .nav-toggle{display:flex;flex-direction:row;padding:.75rem .75rem .75rem 0}.chinese-header .nav-toggle::before{margin:0 .5rem 0 0}.chinese-header .english{margin-left:auto;font-family:var(--monument)}.chinese-header .icon-globe{align-items:baseline}.chinese-header .icon-globe::before{content:"";display:inline-block;height:1rem;width:1rem;background:no-repeat url(https://www.rand.org/etc/rand/designs/common/icons/globe-black70.8b5ded5.svg);margin-right:.25rem}@media(width >= 64rem){.chinese-header .icon-globe{padding-right:0}}.chinese-header .mobile-default{display:flex;justify-content:space-between;align-items:center}@media(width < 48rem){.chinese-nav{display:grid;grid-template-rows:0fr;transition:grid-template-columns .2s ease-out}.chinese-nav .top-level-ul{overflow:hidden}.chinese-nav.open{grid-template-rows:1fr}.chinese-nav .top-level-li{margin:0;border-top:1px solid var(--black30)}.chinese-nav .dd-toggle-click{display:flex;justify-content:space-between;position:relative}.chinese-nav .dd-toggle-click::before,.chinese-nav .dd-toggle-click::after{content:"";background:currentColor;width:2px;height:.75rem;position:absolute;top:50%;transform:translateY(-50%);right:1.5rem;transition:transform .2s ease-out}.chinese-nav .dd-toggle-click::before{transform:translateY(-50%) rotate(90deg)}.chinese-nav .hasDropdown.open .top-level-a::before{transform:translateY(-50%) rotate(270deg)}.chinese-nav .hasDropdown.open .top-level-a::after{transform:translateY(-50%) rotate(90deg)}.chinese-nav .dropdown{height:0;overflow:hidden}.chinese-nav .dropdown li{padding:0}.chinese-nav .dropdown a{display:block;font-size:.75rem;font-weight:570;line-height:1.16;padding:.5rem 1rem .5rem 1.5rem}}@media(width > 48rem){.chinese-header .mobile-default{display:none}.chinese-nav{height:auto !important}.chinese-nav .top-level-ul{display:flex}.chinese-nav .english .top-level-a{display:block}.chinese-nav .dropdown{position:absolute;top:2.5rem;left:0;z-index:1000;width:31rem;background:#e0ded7;transition:opacity 0s;opacity:0;pointer-events:none;padding:.75rem}.chinese-nav .hasDropdown{position:relative}.chinese-nav .hasDropdown .top-level-a{padding:.5rem 1.5rem .5rem 1rem}.chinese-nav .hasDropdown .top-level-a::after{position:absolute;top:43%;right:.75rem;content:"";display:inline-block;width:0;height:0;border:solid .25rem;border-color:currentColor rgba(0,0,0,0) rgba(0,0,0,0) rgba(0,0,0,0)}.chinese-nav .hasDropdown.open .dropdown{opacity:1;pointer-events:all}.dropdown-flex{display:flex}.dropdown-flex::after{content:"";background:#d0d0cc;width:.0625rem}.dropdown-info{flex:0 0 19rem}.dropdown-links{flex:1 1 auto;margin-left:1rem;order:1}ul{list-style:none}ul ::marker{content:none}li{padding-left:0}}.chinese-footer{position:relative}.chinese-footer .footer-about{flex-shrink:1;width:44rem;max-width:100%;font-size:.875rem;margin-bottom:1.5rem}.chinese-footer .footer-about-heading{margin:0 0 .75rem;font-size:1rem}label.required::after,legend.required::after{content:" (必填)"}.q-a .q::before{content:"问题："}.q-a .a::before{content:"回答："}article .authors{color:var(--black90)}article .date{font-size:.8125rem;margin-bottom:.9375rem}.archives ul{list-style:none;padding-left:0}.archives ul ::marker{content:none}.archives ul li{padding-left:0}.archives-wrap .hidden-content{margin-bottom:0}