.xc-heading{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:26px}.xc-eyebrow{font-size:11px;letter-spacing:2px;color:var(--gold-deep);margin-bottom:10px}.xc-heading h1{font:600 36px/1.3 var(--serif);letter-spacing:1px}.xc-heading p{font-size:14px;line-height:1.8;color:var(--ink-2);margin-top:10px}.xc-quiet-link{border:1px solid var(--line-2);border-radius:6px;color:var(--ink);padding:11px 16px;font-size:13px;text-decoration:none;white-space:nowrap;background:var(--card)}
.xc-metrics{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));background:var(--card);border:1px solid var(--line);border-radius:6px;padding:20px 0;margin-bottom:22px}.xc-metric{padding:0 22px;border-right:1px solid var(--line);display:flex;flex-direction:column;gap:5px}.xc-metric:last-child{border:0}.xc-metric strong{font:600 27px/1.25 var(--serif);color:var(--gold-deep)}.xc-metric span{font-size:12px;color:var(--ink-2)}
.xc-nav{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin-bottom:24px}.xc-nav a{padding:18px 20px;border:1px solid var(--line);border-radius:6px;background:var(--card);text-decoration:none;color:var(--ink);display:flex;flex-direction:column;gap:8px;transition:background .15s}.xc-nav a strong{font:600 19px/1.4 var(--serif)}.xc-nav a span{font-size:12px;color:var(--ink-3)}.xc-nav a[aria-current=page]{background:var(--ink);color:#fff;border-color:var(--ink)}.xc-nav a[aria-current=page] span{color:#c4ccda}.xc-nav a:hover{border-color:var(--gold-deep)}
.xc-workspace{display:block}.xc-catalog,.xc-aside-card{background:var(--card);border:1px solid var(--line);border-radius:6px;padding:22px;min-width:0}.xc-section-head{display:flex;justify-content:space-between;align-items:center;gap:12px;border-bottom:1px solid var(--line);padding-bottom:16px}.xc-section-head h2,.xc-aside-card h2{font:600 21px/1.45 var(--serif)}.xc-section-head p{font-size:12px;color:var(--ink-3);margin-top:5px}.xc-filters{display:flex;align-items:end;gap:10px;flex-wrap:wrap;padding:18px 0}.xc-filters label{display:flex;flex-direction:column;gap:6px;color:var(--ink-2);font-size:11px;min-width:0}.xc-filters input,.xc-filters select{border:1px solid var(--line-2);border-radius:6px;background:var(--card);color:var(--ink);font:13px var(--sans);padding:10px 11px;min-height:40px;max-width:100%}.xc-filters select{min-width:108px}.xc-search{flex:1;min-width:130px!important}.xc-search input{width:100%}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}.xc-button{display:inline-flex;justify-content:center;align-items:center;gap:12px;background:var(--ink);color:#fff;text-decoration:none;border:1px solid var(--ink);border-radius:6px;font-size:12px;line-height:1.5;padding:10px 14px;min-height:40px;white-space:nowrap;cursor:pointer}.xc-button:hover{background:var(--navy-2)}
.xc-paper-row{display:flex;align-items:center;gap:16px;border:1px solid var(--line);padding:18px 16px;margin-bottom:10px;border-radius:6px}.xc-paper-year{display:flex;flex-direction:column;gap:6px;flex:0 0 57px;align-self:stretch;justify-content:center;border-right:1px solid var(--line);color:var(--ink-2)}.xc-paper-year strong{font:600 20px/1.4 var(--serif)}.xc-paper-year span{font-size:11px;overflow-wrap:anywhere;padding-right:5px}.xc-paper-info{flex:1;min-width:0}.xc-paper-title{display:block;color:var(--ink);font:600 15px/1.7 var(--sans);text-decoration:none;overflow-wrap:anywhere}.xc-paper-title:hover{text-decoration:underline;text-underline-offset:4px}.xc-paper-info p{font-size:11px;line-height:1.7;color:var(--ink-3);margin:6px 0}.xc-chips{display:flex;flex-wrap:wrap;gap:4px}.xc-chips span{font-size:10px;color:var(--ink-2);background:var(--paper);padding:3px 6px;border-radius:2px}.xc-count{font-size:12px;color:var(--ink-3);white-space:nowrap}.xc-pagination{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:14px;font-size:12px;color:var(--ink-3)}.xc-pagination>div{display:flex;gap:8px}.xc-page{display:inline-block;padding:8px 12px;border:1px solid var(--line-2);border-radius:6px;text-decoration:none;color:var(--ink)}.xc-empty{text-align:center;padding:45px 10px}.xc-empty p{font-size:13px;color:var(--ink-3);margin-top:10px}.xc-aside{display:flex;flex-direction:column;gap:16px}.xc-aside-card p{color:var(--ink-2);font-size:13px;line-height:1.9;margin-top:14px}.xc-aside-card>a.xc-aside-link{display:block;margin-top:18px;padding-top:14px;border-top:1px solid var(--line);color:var(--gold-deep);text-decoration:none;font-size:13px}.xc-module-link{display:flex;justify-content:space-between;gap:8px;padding:13px 0;border-bottom:1px solid var(--line);color:var(--ink-2);text-decoration:none;font-size:13px}.xc-module-link:last-child{border:0;padding-bottom:0}.xc-module-link span:last-child{color:var(--ink-3);font-size:12px}.xc-source{font-size:11px!important;color:var(--ink-3)!important}.xc-source a{color:inherit}.xc-practice-intro{display:flex;gap:12px;justify-content:space-between;align-items:center;margin-bottom:18px;flex-wrap:wrap}.xc-bank-switch{display:flex;gap:8px}.xc-bank-switch a{color:var(--ink-2);text-decoration:none;border:1px solid var(--line-2);padding:8px 12px;border-radius:6px;font-size:12px}.xc-bank-switch a.active{color:white;background:var(--ink)}.xc-history{margin-top:30px}
.xc-tree{border:1px solid var(--line);border-radius:6px;background:var(--card)}.xc-branch+.xc-branch{border-top:1px solid var(--line)}.xc-branch>summary{display:flex;align-items:center;gap:12px;padding:18px 22px;cursor:pointer;list-style:none;min-height:60px}.xc-branch>summary::-webkit-details-marker{display:none}.xc-branch>summary:before{content:'›';font-size:24px;color:var(--gold-deep);transition:transform .15s}.xc-branch[open]>summary:before{transform:rotate(90deg)}.xc-branch>summary:hover,.xc-leaf:hover{background:var(--paper-2)}.xc-branch-name{font-size:16px;font-weight:600}.xc-leaves{margin:0 22px 18px 33px;border-left:1px solid var(--line)}.xc-leaf{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:10px;min-height:54px;padding:9px 14px 9px 24px}.xc-leaf-name{display:flex;align-items:center;flex-wrap:wrap;gap:12px;font-size:14px}.xc-train-buttons{display:flex;gap:8px}.xc-train-buttons .mc-btn{display:inline-flex;align-items:center;justify-content:center;min-width:52px;min-height:36px;padding:7px 10px;text-decoration:none}.xc-nav a:focus-visible,.xc-button:focus-visible,.xc-branch>summary:focus-visible,.xc-train-buttons a:focus-visible{outline:2px solid var(--gold-deep);outline-offset:3px}
.xc-rich img{max-width:100%;height:auto;vertical-align:middle}.xc-rich img[src*='/公式图/'],.xc-rich img[src*='%E5%85%AC%E5%BC%8F%E5%9B%BE/']{display:inline-block!important;max-height:90px;width:auto;margin:2px 3px!important;object-fit:contain}.xc-rich p{margin:.5em 0}.xc-rich table{border-collapse:collapse;max-width:100%;font-size:inherit}.xc-rich td,.xc-rich th{padding:5px;border:1px solid var(--line)}
@media(min-width:1550px){.xc-workspace{grid-template-columns:minmax(0,1fr) 290px}}@media(max-width:1180px){.xc-workspace{grid-template-columns:minmax(0,1fr)}.xc-aside{display:grid;grid-template-columns:1fr 1fr}.xc-aside-card:last-child{grid-column:1/-1}.xc-metric{padding:0 14px}.xc-paper-row{gap:12px}}@media(max-width:600px){.xc-heading{align-items:flex-start;gap:10px}.xc-heading h1{font-size:28px}.xc-heading p{font-size:12px}.xc-quiet-link{padding:9px;font-size:11px}.xc-metrics{grid-template-columns:1fr 1fr;padding:0}.xc-metric{padding:15px 17px;border-bottom:1px solid var(--line)}.xc-metric:nth-child(2){border-right:0}.xc-metric:nth-child(3){border-bottom:0}.xc-metric strong{font-size:23px}.xc-metric span{font-size:11px}.xc-nav{grid-template-columns:1fr 1fr;gap:8px}.xc-nav a{padding:15px}.xc-nav a strong{font-size:17px}.xc-nav a span{font-size:11px}.xc-catalog,.xc-aside-card{padding:16px}.xc-section-head{align-items:flex-start}.xc-section-head h2{font-size:19px}.xc-section-head p{font-size:11px}.xc-paper-row{flex-wrap:wrap;padding:13px 12px;gap:12px}.xc-paper-year{flex-basis:46px}.xc-paper-year strong{font-size:18px}.xc-paper-title{font-size:13px}.xc-start{margin-left:58px;width:calc(100% - 58px)}.xc-filters select{min-width:0;width:100%}.xc-filters label{flex:1 1 40%}.xc-filters .xc-search{flex-basis:65%}.xc-aside{grid-template-columns:1fr}.xc-aside-card:last-child{grid-column:auto}.xc-leaves{margin:0 10px 14px 18px}.xc-leaf{padding-left:14px}.xc-branch>summary{padding:16px}.xc-pagination{font-size:11px}.xc-page{padding:7px 9px}}