/* Shared main and city homepage news, aligned with the site content width. */
.knowledge-showcase{min-height:0;margin-top:-1px;padding:48px 0 38px;background:radial-gradient(ellipse at 50% 30%,#eaf3ff 0,transparent 68%),#f3f7fc}
.knowledge-showcase .knowledge-heading{max-width:1500px;margin-bottom:0}
.knowledge-showcase .knowledge-heading h2{max-width:none;font-size:clamp(29px,2.7vw,42px);line-height:1.3;letter-spacing:-.035em}
.knowledge-showcase .knowledge-heading .direct-answer{max-width:none;line-height:1.55;color:#526781;font-size:clamp(15px,1.12vw,18px);margin-top:12px}
.knowledge-filters{display:flex;justify-content:center;align-items:center;flex-wrap:wrap;gap:12px;margin-top:24px;margin-bottom:22px}
.knowledge-filters a{display:inline-flex;align-items:center;justify-content:center;min-width:112px;min-height:44px;padding:8px 26px;border:1px solid #dce6f5;background:#fff;border-radius:11px;color:#294263;font-size:16px;transition:background .15s,color .15s}
.knowledge-filters a:hover{border-color:#a8c7ff;color:#1265ff}
.knowledge-filters a.is-active{border-color:#0967ff;background:linear-gradient(135deg,#0875ff,#0755f5);color:#fff;box-shadow:0 6px 16px #1265ff18}
.knowledge-layout{display:grid;grid-template-columns:minmax(0,.42fr) minmax(0,.58fr);gap:24px;align-items:stretch;max-width:var(--container);--knowledge-row-height:102px}
.knowledge-layout[hidden],.knowledge-filters a[hidden],.knowledge-showcase[hidden]{display:none}
.knowledge-feature,.knowledge-recent{min-width:0;border:1px solid #e0e9f5;border-radius:17px;background:#fff;box-shadow:0 12px 32px rgba(30,65,108,.065)}
.knowledge-feature{padding:22px;display:flex;flex-direction:column}
.knowledge-feature-heading{margin-bottom:10px;line-height:1}
.knowledge-feature-label,.knowledge-tag{display:inline-flex;align-items:center;justify-content:center;min-height:30px;padding:3px 10px;border-radius:7px;background:linear-gradient(135deg,#edf5ff,#e4efff);box-shadow:inset 0 1px 0 rgba(255,255,255,.6);color:#0864e8;font-size:15px;font-weight:600;line-height:1.5;white-space:nowrap}
.knowledge-feature-label{min-height:36px;padding:4px 14px;border-radius:9px;font-size:18px}
.knowledge-tag:hover{background:#dceaff;color:#0754d4}
.knowledge-feature-cover{display:block;flex-shrink:0;aspect-ratio:16/9;background:linear-gradient(135deg,#e2edfe,#f1f6ff);border-radius:10px;overflow:hidden;position:relative}
.knowledge-feature-cover img{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;transition:transform .25s ease}
.knowledge-feature-cover:hover img{transform:scale(1.015)}
.knowledge-feature-body{display:flex;flex:1;flex-direction:column;padding-top:12px}
.knowledge-feature-category{margin-bottom:8px;line-height:1}
.knowledge-feature-body h3{font-size:clamp(28px,2.1vw,30px);line-height:1.45;color:#102646;margin:0 0 10px;overflow-wrap:anywhere;min-height:0;text-wrap:balance;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.knowledge-feature-body h3 a:hover,.knowledge-row h4 a:hover{color:#1265ef}
.knowledge-feature-summary{font-size:17px;line-height:1.65;color:#60718a;margin:0 0 16px;min-height:3.3em;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.knowledge-feature-body footer{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;flex-wrap:wrap}
.knowledge-byline{display:flex;align-items:center;gap:5px;flex-wrap:wrap;color:#65758b;font-size:13px}
.knowledge-byline time::before{content:'·';margin-right:5px}
.knowledge-read{display:inline-flex;align-items:center;justify-content:center;gap:16px;padding:8px 17px;color:#1766f1;border:1px solid #8cb5ff;border-radius:6px;font-size:14px;white-space:nowrap}
.knowledge-read:hover{background:#edf4ff;border-color:#1766f1}
.knowledge-recent{display:flex;flex-direction:column;padding:20px 26px}
.knowledge-recent-heading{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-bottom:3px}
.knowledge-recent-heading h3{font-size:24px;color:#132b50;margin:0;font-weight:700;line-height:1.5}
.knowledge-recent-heading>a{color:#2479f5;font-size:14px;white-space:nowrap}
.knowledge-recent-heading>a:hover{color:#0754d4}
.knowledge-rows{display:grid;grid-template-rows:repeat(5,minmax(var(--knowledge-row-height),1fr));flex:1;min-height:calc(var(--knowledge-row-height)*5)}
.knowledge-row{display:flex;align-items:center;justify-content:space-between;gap:20px;flex:none;min-height:var(--knowledge-row-height);padding:15px 0;min-width:0}
.knowledge-row+.knowledge-row{border-top:1px solid #e7edf6}
.knowledge-row:nth-child(n+6){display:none}
.knowledge-row-copy{display:flex;flex-direction:column;align-items:flex-start;min-width:0;flex:1}
.knowledge-row .knowledge-tag{min-height:28px;font-size:14px;margin-bottom:6px}
.knowledge-row time{font-variant-numeric:tabular-nums;font-size:13px;color:#687b95;white-space:nowrap;flex-shrink:0}
.knowledge-row h4{width:100%;font-size:clamp(16px,1.4vw,21px);line-height:1.55;color:#102646;margin:0;font-weight:500;overflow-wrap:anywhere}
.knowledge-row h4 a{display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
.knowledge-showcase .center-action{margin-top:30px}
.knowledge-showcase .center-action .button{min-width:330px;min-height:54px;padding:12px 38px;border-radius:8px;font-size:18px;gap:24px}
/* Keep the same layout and spacing even when a category has fewer articles. */
.knowledge-empty{display:none;flex-direction:column;align-items:center;justify-content:center;flex:1;min-height:calc(var(--knowledge-row-height)*5);padding:24px;color:#8a9ab1;text-align:center;line-height:1.8}
.knowledge-empty strong{font-size:18px;font-weight:500;color:#60758f}
.knowledge-empty span{font-size:14px;margin-top:6px}
.knowledge-layout[data-recent-count='0'] .knowledge-rows{display:none}
.knowledge-layout[data-recent-count='0'] .knowledge-empty{display:flex}
.knowledge-feature-cover.is-missing::after{content:'矩擎GEO · 产品知识';position:absolute;inset:0;display:grid;place-items:center;font-size:24px;color:#315f9a;font-weight:700}
.knowledge-feature-cover.is-missing img{display:none}
@media(min-width:1600px){.knowledge-showcase .knowledge-heading h2{line-height:1.28}}
@media(min-width:1200px) and (max-width:1599px){.knowledge-showcase .knowledge-heading .direct-answer{line-height:1.6}}
@media(max-width:1200px){.knowledge-showcase .knowledge-heading{max-width:1080px}}
@media(max-width:1000px){.knowledge-showcase .knowledge-heading{max-width:760px}}
@media(max-width:1199px){.knowledge-row h4 a{-webkit-line-clamp:2}.knowledge-layout{grid-template-columns:minmax(0,.46fr) minmax(0,.54fr);gap:18px;--knowledge-row-height:120px}.knowledge-feature{padding:20px}.knowledge-recent{padding:19px 22px}.knowledge-feature-summary{font-size:14px}.knowledge-feature-body h3{font-size:25px}.knowledge-byline{font-size:12px}.knowledge-read{padding:7px 12px;font-size:13px}.knowledge-row{gap:14px}.knowledge-recent-heading h3{font-size:22px}}
@media(max-width:767px){.knowledge-feature-label{min-height:30px;font-size:15px;padding:4px 12px;border-radius:7px}.knowledge-tag{min-height:28px;font-size:14px;padding:3px 10px;border-radius:6px}.knowledge-row .knowledge-tag{min-height:26px;font-size:13px;padding:3px 10px;border-radius:6px}.knowledge-showcase{padding:38px 0 34px}.knowledge-layout{grid-template-columns:minmax(0,1fr);gap:18px;--knowledge-row-height:104px}.knowledge-showcase .knowledge-heading h2{font-size:28px;line-height:1.35}.knowledge-showcase .knowledge-heading .direct-answer{font-size:14px;line-height:1.8;max-width:490px}.knowledge-filters{gap:9px;margin-top:20px;margin-bottom:18px}.knowledge-filters a{min-width:0;min-height:38px;padding:6px 19px;font-size:14px;border-radius:8px}.knowledge-feature,.knowledge-recent{padding:18px;border-radius:14px}.knowledge-feature-body h3{font-size:23px}.knowledge-feature-summary{font-size:14px;margin-bottom:16px}.knowledge-byline{font-size:12px;gap:4px}.knowledge-read{padding:7px 12px;font-size:13px;gap:10px}.knowledge-recent-heading h3{font-size:21px}.knowledge-recent-heading>a{font-size:13px}.knowledge-row{padding:10px 0;gap:12px;flex:none}.knowledge-row h4{font-size:16px}.knowledge-row time{font-size:12px}.knowledge-showcase .center-action{margin-top:24px}.knowledge-showcase .center-action .button{min-width:260px;min-height:50px;font-size:16px}}
@media(max-width:359px){.knowledge-filters{gap:7px}.knowledge-filters a{padding-inline:14px}.knowledge-feature-body h3{font-size:21px}.knowledge-feature,.knowledge-recent{padding:16px}}
@media(prefers-reduced-motion:reduce){.knowledge-feature-cover img,.knowledge-filters a{transition:none}.knowledge-feature-cover:hover img{transform:none}}