/* Persistent knowledge library, homepage discovery and article navigation. */
.knowledge-nav[aria-current="page"]{color:var(--blue);font-weight:650}
.knowledge-home{padding-block:74px 84px;border-top:1px solid var(--border)}
.knowledge-home .section-heading{margin-bottom:32px;align-items:center}
.knowledge-home .section-heading h2{font-size:31px;margin-bottom:8px;text-wrap:balance}
.knowledge-home .section-heading p:not(.eyebrow){margin:0;color:var(--muted);font-size:13px}
.knowledge-all{white-space:nowrap;display:inline-flex;align-items:center;gap:16px;color:var(--blue);font-size:13px;font-weight:600}
.knowledge-home-grid{display:grid;grid-template-columns:1.8fr 1fr;gap:22px}
.knowledge-feature{display:grid;grid-template-columns:1.3fr 1fr;gap:30px;padding:34px;border:1px solid #dce7ed;background:linear-gradient(120deg,#f5f9fc,#edf5f5);border-radius:14px;align-items:center;transition:border-color .2s,box-shadow .2s}
a.knowledge-feature:hover{border-color:#8ab6c4;box-shadow:0 12px 32px #183c5510}
.knowledge-feature-label{color:#3c7d80;font-size:10px;letter-spacing:1.7px;display:block;margin-bottom:15px;font-weight:600}
.knowledge-feature h3{font-size:24px;line-height:1.55;margin:0 0 14px;font-weight:620;letter-spacing:-.4px;text-wrap:balance}
#home{overflow-x:clip}
.knowledge-feature p{font-size:13px;line-height:1.9;color:#61798a;margin:0 0 22px}
.knowledge-feature-meta{display:flex;align-items:center;gap:12px;font-size:11px;color:#71899b}
.knowledge-feature-meta b{margin-left:auto;color:#266778;font-size:13px;font-weight:550}
.home-article-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;align-items:stretch}
.home-article-card{position:relative;min-width:0;margin:0;background:#f9fcfc;border:1px solid #dce7ed;border-radius:14px;box-shadow:0 6px 0 -2px #f0f5f6,0 7px 0 -2px #dce7ed;transition:border-color .2s,box-shadow .2s}
.home-article-card>a{display:flex;flex-direction:column;min-height:280px;height:100%;padding:27px 27px 23px;color:#203d54;border-radius:inherit}
.home-article-card:hover{border-color:#7eacb8;box-shadow:0 6px 0 -2px #eaf3f3,0 7px 0 -2px #a9c5cd,0 14px 30px #183c550a}
.home-article-card>a:focus-visible{outline:3px solid #74a7d6;outline-offset:5px}
.home-article-label{display:flex;align-items:center;justify-content:space-between;gap:10px;min-height:23px;margin-bottom:21px;color:#3c7d80;font-size:11px;font-weight:600;letter-spacing:.7px}
.home-article-new{background:#e8f2ef;border:1px solid #d0e6df;border-radius:4px;padding:1px 8px;font-size:10px;font-weight:500;letter-spacing:.5px}
.home-article-card h3{font-size:21px;line-height:1.6;font-weight:600;letter-spacing:-.3px;margin:0 0 14px;text-wrap:pretty}
.home-article-summary{font-size:13px;line-height:1.85;color:#6b8192;margin:0 0 24px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.home-article-foot{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-top:auto;padding-top:18px;border-top:1px solid #e1eaed;font-size:11px;color:#8094a3}
.home-article-foot>span{font-size:12px;color:#356e80;font-weight:550}
.home-knowledge-bottom{display:flex;justify-content:space-between;align-items:center;gap:22px;margin-top:30px;padding-top:23px;border-top:1px solid #e4ecf0}
.home-knowledge-categories{display:flex;gap:26px;flex-wrap:wrap}
.home-knowledge-categories>a{display:inline-flex;align-items:center;gap:12px;font-size:11px;color:#7b8f9f}
.home-knowledge-categories strong{font-size:13px;font-weight:600;color:#3a5e77}
.home-knowledge-categories>a:hover strong,.home-all-knowledge:hover{color:#277c7d}
.home-all-knowledge{font-size:12px;color:#54778e;white-space:nowrap}
@media(max-width:1050px) and (min-width:701px){.home-article-grid{gap:15px}.home-article-card>a{padding:23px 21px;min-height:290px}.home-article-card h3{font-size:19px}.home-knowledge-bottom{align-items:flex-start}.home-knowledge-categories{gap:12px 22px}.home-knowledge-categories>a{gap:8px}}
@media(max-width:700px){.home-article-grid{grid-template-columns:1fr;gap:18px}.home-article-card>a{min-height:0;padding:20px 21px 17px}.home-article-label{margin-bottom:10px;min-height:20px;font-size:10px}.home-article-card h3{font-size:19px;line-height:1.55;margin-bottom:10px}.home-article-summary{font-size:12px;line-height:1.8;margin-bottom:17px}.home-article-foot{padding-top:12px;font-size:10px}.home-article-foot>span{font-size:11px}.home-knowledge-bottom{flex-direction:column;align-items:stretch;gap:18px;margin-top:25px;padding-top:20px}.home-knowledge-categories{display:grid;grid-template-columns:1fr 1fr;gap:15px}.home-knowledge-categories>a{display:grid;grid-template-columns:1fr auto;gap:3px 8px}.home-knowledge-categories strong{font-size:13px}.home-knowledge-categories a>span:first-of-type{grid-column:1;grid-row:2;font-size:10px}.home-knowledge-categories a>span:last-child{grid-column:2;grid-row:1/3}.home-all-knowledge{align-self:flex-end;font-size:11px}}
@media(prefers-reduced-motion:reduce){.home-article-card{transition:none}}
.knowledge-mini{padding:18px;background:#ffffffc9;border:1px solid #fff;border-radius:11px;box-shadow:0 15px 35px #294e6c0b;transform:rotate(2deg)}
.knowledge-mini>p{font-size:10px;color:#6b8b94;letter-spacing:1px;margin:0 0 14px}
.knowledge-mini-row{display:flex;gap:11px;align-items:center;padding:12px 0;border-top:1px solid #e7eff1;font-size:12px;font-weight:550;color:#305468}
.knowledge-mini-row span{font-size:10px;font-weight:500;color:#8aa9b3}
.knowledge-collections{display:grid;gap:14px}
.knowledge-collection{display:flex;gap:17px;align-items:center;padding:23px 24px;border:1px solid #e2e9ef;border-radius:12px;background:white;transition:border-color .2s,background .2s}
.knowledge-collection:hover{border-color:#a6c6e3;background:#f8fbff}
.knowledge-collection-icon{width:44px;height:44px;border-radius:12px;background:#edf3f9;display:grid;place-items:center;color:#6588ad;font-size:21px;flex-shrink:0}
.knowledge-collection strong{display:block;font-size:17px;font-weight:600;margin-bottom:4px}
.knowledge-collection small{font-size:11px;color:var(--muted)}
.knowledge-collection>b{font-size:19px;color:#7697b5;margin-left:auto;font-weight:400}
.library-main{padding-block:38px 80px}
.library-crumb{font-size:12px;color:#7a8d9e;margin-bottom:32px;display:flex;gap:12px}
.library-crumb a:hover{color:var(--blue)}
.library-hero{display:flex;justify-content:space-between;gap:38px;align-items:end;margin-bottom:36px}
.library-hero .eyebrow{margin-bottom:13px}
.library-hero h1{font-size:44px;letter-spacing:-1px;margin-bottom:16px}
.library-hero>div>p:last-child{color:var(--muted);font-size:14px;line-height:1.9;margin:0}
.library-tally{font-size:12px;color:#7c8b99;white-space:nowrap;padding-bottom:5px}
.library-tally strong{font-weight:550;color:#22465e;font-size:24px;margin-inline:5px}
.library-spotlight{margin-bottom:44px;grid-template-columns:1.6fr 1fr;padding:36px 42px}
.library-spotlight h3{font-size:29px;max-width:560px}
.library-spotlight .knowledge-mini{max-width:300px;width:100%;justify-self:end}
.library-tools{padding:26px 0;border-top:1px solid #e2eaf2;border-bottom:1px solid #e2eaf2;margin-bottom:24px}
.library-tools-top{display:flex;gap:24px;align-items:center;justify-content:space-between}
.library-categories,.library-types{display:flex;gap:8px;flex-wrap:wrap}
.library-categories button{border:1px solid transparent;background:transparent;color:#6f8192;border-radius:7px;padding:9px 15px;font-size:14px;display:inline-flex;gap:10px;align-items:center}
.library-categories button span{font-size:10px;opacity:.8}
.library-categories button[aria-pressed="true"]{background:#1d4564;color:white}
.library-categories button:hover:not([aria-pressed="true"]){background:#f1f5f9;color:#294c6a}
.library-search{width:min(360px,42%);display:flex;gap:12px;align-items:center;border:1px solid #dbe4ec;border-radius:7px;padding:11px 15px;background:#fafcfe}
.library-search span{color:#7390a7;font-size:20px;line-height:1}
.library-search input{width:100%;min-width:0;border:0;outline:0;background:transparent;font-size:13px;color:#224259}
.library-search:focus-within{border-color:#74a7d6;box-shadow:0 0 0 3px #eaf2fb}
.library-tools-bottom{display:flex;justify-content:space-between;align-items:center;gap:15px;margin-top:18px}
.library-types button{background:none;border:0;padding:4px 8px;font-size:12px;color:#7a8c9d}
.library-types button[aria-pressed="true"]{color:#1d5c92;font-weight:650}
.library-result{font-size:11px;color:#7d8d9c;margin:0}
.library-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;align-items:start}
.library-item{border:1px solid #e1e8ee;border-radius:11px;background:white;min-width:0;transition:border-color .2s,box-shadow .2s}
.library-item[hidden]{display:none}
.library-item:hover,.library-item[open]{border-color:#a5bdcf;box-shadow:0 7px 22px #17364c08}
.library-item summary{list-style:none;cursor:pointer}
.library-item summary::-webkit-details-marker{display:none}
.library-card-head{display:block;padding:25px 25px 20px}
.library-item-label{display:flex;align-items:center;justify-content:space-between;gap:10px;color:#7390a1;font-size:10px;margin-bottom:14px}
.library-item-label span:first-child{letter-spacing:.7px}
.library-item-label span:last-child{background:#f1f5f8;color:#6c8294;border-radius:4px;padding:2px 7px}
.library-item[data-kind="article"] .library-item-label span:last-child{background:#e7f1ef;color:#47847c}
.library-item h2{font-size:17px;line-height:1.6;letter-spacing:0;font-weight:600;margin:0 0 13px;color:#203d54;min-height:54px}
.library-excerpt{font-size:12px;line-height:1.9;color:#718395;margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:46px}
.library-tags{display:flex;gap:6px;flex-wrap:wrap;margin-top:17px}
.library-tags span{font-size:9px;color:#7a8b98;background:#f7f9fb;border:1px solid #edf1f5;border-radius:4px;padding:1px 7px}
.library-card-foot{display:flex;justify-content:space-between;gap:10px;border-top:1px solid #edf1f5;margin-top:20px;padding-top:15px;font-size:10px;color:#8a9aa9}
.library-card-foot b{font-size:11px;font-weight:500;color:#587c98}
.library-item[open] .library-card-foot b{font-size:0}
.library-item[open] .library-card-foot b::after{content:'收起回答 −';font-size:11px}
.library-answer{padding:0 25px 24px;border-top:1px solid #edf1f5;color:#61778a;font-size:12px;line-height:1.9}
.library-answer p{margin:18px 0 0}
.library-answer p>b{display:block;color:#31536c;margin-bottom:5px;font-weight:600}
.library-answer .knowledge-risk{background:#faf8f2;border-left:2px solid #d9b882;padding:10px 12px}
.library-answer small{display:block;color:#8495a1;font-size:10px;margin-top:16px}
.library-answer a{color:#3e7196;text-decoration:underline;text-underline-offset:3px}
.library-empty{padding:65px 20px;border:1px dashed #d9e4ed;border-radius:10px;text-align:center;color:#7b8d9a}
.library-empty h2{font-size:20px;color:#31536c;margin-bottom:10px}
.library-empty p{font-size:13px}
.library-empty button{border:0;background:#edf4fa;color:#2c6793;border-radius:5px;padding:9px 20px;font-size:13px}
.library-pagination{display:flex;justify-content:space-between;align-items:center;gap:20px;border-top:1px solid #e6edf3;margin-top:30px;padding-top:23px}
.library-pagination p{color:#7b8d9c;font-size:11px;margin:0}
.library-page-buttons{display:flex;align-items:center;gap:8px}
.library-page-buttons button{min-width:34px;height:34px;border:1px solid #e1e8ee;border-radius:5px;background:white;color:#667d90;font-size:12px;padding:0 11px}
.library-page-buttons button[aria-current="page"]{background:#1d4564;border-color:#1d4564;color:white}
.library-page-buttons button:disabled{opacity:.4;cursor:default}
.library-pagination[hidden],.library-empty[hidden]{display:none}
.library-note{font-size:11px;color:#8393a1;margin:30px 0 0;max-width:850px}
.knowledge-bridge{margin-top:25px;border:1px solid #e1eaf0;border-radius:10px;padding:20px 24px;display:flex;justify-content:space-between;align-items:center;gap:20px;background:#f8fbfd}
.knowledge-bridge strong{display:block;font-size:15px;margin-bottom:4px}
.knowledge-bridge p{font-size:12px;color:var(--muted);margin:0}
.knowledge-bridge a{font-size:12px;color:var(--blue);white-space:nowrap}
.article-library-links{max-width:760px;margin:35px auto 0;padding:24px;border:1px solid #dce7ec;background:#f6fafb;border-radius:12px}
.article-library-links h2{font-size:20px;margin-bottom:14px}
.article-library-links a{display:block;color:#386d8d;font-size:13px;margin-top:10px}
@media(max-width:1050px){nav{gap:22px}.knowledge-home-grid{grid-template-columns:1.5fr 1fr}.knowledge-feature{padding:26px;grid-template-columns:1fr}.knowledge-home .knowledge-mini{display:none}.knowledge-feature h3{font-size:22px}.library-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.library-spotlight{grid-template-columns:1.5fr 1fr}.library-spotlight h3{font-size:26px}}
@media(max-width:700px){header nav{display:flex;gap:0}header nav a:not(.knowledge-nav){display:none}header .knowledge-nav{font-size:12px;white-space:nowrap}header .brand-sub{letter-spacing:1px}.knowledge-home{padding-block:52px 56px}.knowledge-home .section-heading{align-items:flex-start;gap:15px}.knowledge-home .section-heading h2{font-size:26px}.knowledge-home-grid{grid-template-columns:1fr;gap:14px}.knowledge-feature{padding:26px}.knowledge-feature h3{font-size:23px}.knowledge-collections{grid-template-columns:1fr 1fr;gap:12px}.knowledge-collection{padding:18px 14px;gap:10px;align-items:flex-start}.knowledge-collection-icon{display:none}.knowledge-collection strong{font-size:16px}.knowledge-collection small{font-size:10px}.knowledge-collection>b{font-size:17px}.library-main{padding-block:24px 50px}.library-crumb{margin-bottom:28px;font-size:11px}.library-hero{display:block;margin-bottom:26px}.library-hero h1{font-size:34px}.library-hero>div>p:last-child{font-size:13px}.library-tally{margin-top:20px}.library-tally strong{font-size:21px}.library-spotlight{display:block;padding:26px;margin-bottom:30px}.library-spotlight h3{font-size:24px}.library-spotlight .knowledge-mini{display:none}.library-tools{padding:20px 0;margin-bottom:18px}.library-tools-top{display:block}.library-categories{gap:4px;margin-bottom:16px}.library-categories button{font-size:12px;padding:8px 12px;gap:7px}.library-search{width:100%;padding:12px 14px}.library-tools-bottom{gap:8px;align-items:flex-start}.library-types{gap:0}.library-types button{font-size:11px;padding:4px 7px}.library-result{font-size:10px;padding-top:4px;text-align:right}.library-grid{grid-template-columns:1fr;gap:13px}.library-card-head{padding:22px}.library-item h2{min-height:0;font-size:18px;margin-bottom:10px}.library-excerpt{min-height:0}.library-card-foot{margin-top:16px}.library-pagination{align-items:flex-start;flex-direction:column;gap:14px}.library-page-buttons{flex-wrap:wrap}.knowledge-bridge{align-items:flex-start;flex-direction:column;gap:10px;padding:20px}.article-library-links{padding:20px}}
@media(prefers-reduced-motion:reduce){.knowledge-feature,.knowledge-collection,.library-item{transition:none}}

/* Shared article/question relationships and inline knowledge visuals. */
.knowledge-related-articles{margin-top:18px;padding-top:8px;border-top:1px solid #dce7ec}.knowledge-related-articles a{display:block;margin-top:9px;overflow-wrap:anywhere}.knowledge-body-figure{margin:30px 0}.knowledge-body-figure img{display:block;width:100%;height:auto;border-radius:10px}.knowledge-body-figure figcaption{text-align:center;font-size:12px;margin-top:10px;color:#61778a}