/* RelVectors four-section portal. Shared chrome is scoped to preserve article layouts. */
.portal-header{position:relative;z-index:40;background:#f4f2ec;color:#20241f;border-bottom:1px solid #d9dcd2;font-family:"PingFang SC","Microsoft YaHei",system-ui,sans-serif}.portal-header *{box-sizing:border-box}.portal-inner{width:min(1400px,calc(100% - 80px));height:92px;margin:auto;display:flex;align-items:center;justify-content:space-between;gap:26px}.portal-brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;color:#20241f;font-size:21px;font-weight:700;letter-spacing:-.6px;white-space:nowrap}.portal-brand img{display:block;object-fit:contain;border-radius:8px}.portal-header nav{position:static;inset:auto;z-index:auto;border:0;background:transparent;backdrop-filter:none}.portal-header .portal-nav{display:flex;align-items:center;gap:34px;font-size:14px}.portal-header a{color:#535d50;text-decoration:none}.portal-header .portal-brand{color:#20241f}.portal-nav a{position:relative;padding:11px 0;white-space:nowrap}.portal-header a[aria-current=page]{color:#114f9c;font-weight:700}.portal-nav a[aria-current=page]:after{content:"";position:absolute;bottom:3px;left:0;right:0;height:3px;background:#ff5b2c;border-radius:3px}.portal-header .portal-download{font-size:13px;color:#114f9c;border:1px solid #b5c6d4;border-radius:7px;padding:9px 14px;display:flex;gap:22px;align-items:center;white-space:nowrap}.portal-menu-toggle{display:none;border:1px solid #c6cbc0;border-radius:6px;background:transparent;padding:8px 11px;font:inherit;color:inherit}.portal-mobile[hidden]{display:none!important}.portal-header .portal-mobile{padding:12px 24px 22px;display:grid;grid-template-columns:1fr 1fr;gap:12px;font-size:14px}.portal-header .portal-mobile a{padding:9px 12px;border:1px solid #d9dcd2;border-radius:6px}.portal-header a:focus-visible,.portal-header button:focus-visible,.portal-page a:focus-visible{outline:3px solid #ff5b2c;outline-offset:4px}.product-nav{display:flex;justify-content:flex-end;gap:24px;padding-top:20px;font-size:12px;color:#63705a}.product-nav a:hover{color:#114f9c}.portal-footer{max-width:1280px;width:calc(100% - 80px);margin:0 auto;padding:36px 0 26px;border-top:1px solid #d9dcd2;font-family:"PingFang SC","Microsoft YaHei",system-ui,sans-serif;display:flex;align-items:center;flex-wrap:wrap;gap:25px;color:#63705a;font-size:12px}.portal-footer>div:first-child{display:flex;align-items:center;gap:25px}.portal-footer p{margin:0;font-size:12px}.portal-footer-links{display:flex;gap:22px;margin-left:auto}.portal-footer a{color:inherit;text-decoration:none}.portal-footer .portal-brand{font-size:18px;color:#20241f}.portal-legal{flex-basis:100%;display:flex;gap:20px;flex-wrap:wrap;padding-top:16px;border-top:1px solid #e0e2da;font-size:10px}.portal-page{margin:0;color:#20241f;background:#f4f2ec;font:15px/1.85 "PingFang SC","Microsoft YaHei",system-ui,sans-serif;-webkit-font-smoothing:antialiased}.portal-page *{box-sizing:border-box}.portal-page a{color:inherit;text-decoration:none}.portal-main{width:min(1280px,calc(100% - 100px));margin:auto;padding-bottom:95px}.portal-intro{padding:84px 0 55px;max-width:890px}.portal-kicker{display:block;color:#6a775f;font-size:11px;letter-spacing:2px;font-weight:600}.portal-intro h1{font-size:clamp(40px,5.3vw,73px);line-height:1.18;letter-spacing:-3px;margin:24px 0}.portal-intro>p{font-size:16px;line-height:1.95;color:#63705a;max-width:690px;margin:0}.portal-feature{display:grid;grid-template-columns:1.3fr 1fr;gap:80px;background:#e9ede1;border:1px solid #d6ddcc;border-radius:18px;padding:55px;margin-bottom:80px}.portal-feature h2{font-size:36px;line-height:1.4;letter-spacing:-1.5px;margin:20px 0}.portal-feature p{color:#63705a;font-size:14px;margin-bottom:25px}.portal-button{display:inline-flex;justify-content:center;align-items:center;gap:30px;background:#114f9c;border:1px solid #114f9c;color:#fff!important;padding:11px 19px;border-radius:7px;font-size:13px;font-weight:600;text-decoration:none}.portal-button:hover{background:#0b3774}.portal-button.secondary{background:transparent;color:#114f9c!important;border-color:#aabccc}.portal-text-link{display:block;margin-top:18px;font-size:12px;color:#114f9c!important}.process-art{display:flex;flex-direction:column;align-items:center;justify-content:center;border-left:1px solid #cbd3c1;gap:5px}.process-art span{font-size:10px;color:#6a775f;letter-spacing:1.5px}.process-art b{font-size:22px;font-weight:600}.process-art i{font-style:normal;color:#ff5b2c;font-size:22px;margin:6px 0}.portal-section-heading{display:flex;align-items:end;justify-content:space-between;gap:25px;margin:0 0 28px}.portal-section-heading h2{font-size:29px;letter-spacing:-1px;margin:0}.portal-section-heading p{font-size:13px;color:#63705a;margin:0}.portal-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-bottom:65px}.portal-grid.three{grid-template-columns:repeat(3,minmax(0,1fr))}.portal-card{border:1px solid #d9dcd2;background:#fffefa;border-radius:13px;padding:34px;min-width:0}.portal-tag{display:block;font-size:10px;letter-spacing:1px;color:#69775c;margin-bottom:25px}.portal-card h3{font-size:26px;line-height:1.4;margin:0 0 15px;letter-spacing:-1px}.portal-card h2{font-size:31px;line-height:1.4;letter-spacing:-1px;margin:0 0 20px}.portal-card p{font-size:14px;color:#63705a;margin:0 0 24px;line-height:1.95}.portal-card .model-status{font-size:12px;margin-bottom:18px;color:#6a775f}.portal-note{padding:34px 0;border-top:1px solid #d9dcd2}.portal-note h2{font-size:25px;letter-spacing:-1px;margin:0 0 17px;line-height:1.5}.portal-note p{max-width:900px;font-size:14px;color:#63705a;line-height:2;margin:0 0 22px}.portal-note a{color:#114f9c}.portal-note h2:not(:first-child){margin-top:35px}.resource-card{display:block;transition:transform .15s}.resource-card:hover{transform:translateY(-4px)}.resource-card h3{font-size:22px}.resource-card b{font-size:12px;color:#114f9c}.portal-page [hidden]{display:none!important}
/* Harmonize retained course and paper pages without replacing their content. */
body:has(> .portal-header){--bg:#f4f2ec;--signal:#ffcfab;--signal2:#e2e9dc;font-family:"PingFang SC","Microsoft YaHei",system-ui,sans-serif}body:has(> .portal-header) .content,body:has(> .portal-header) pre{max-width:100%;overflow-wrap:anywhere}.lab-frame{background:#fffefa}.portal-legal a{text-decoration:underline;text-underline-offset:3px}
@media(max-width:1000px){.portal-inner{width:calc(100% - 48px);gap:20px}.portal-header .portal-nav{gap:24px}.portal-feature{gap:30px;padding:35px}.portal-feature h2{font-size:31px}.portal-main{width:calc(100% - 64px)}.portal-grid.three{grid-template-columns:1fr}.portal-footer>div:first-child{gap:15px}.portal-footer-links{gap:15px}.portal-footer p{display:none}}
@media(max-width:700px){.portal-inner{height:75px;width:calc(100% - 36px)}.portal-brand{font-size:19px}.portal-brand img{width:30px;height:30px}.portal-header .portal-nav,.portal-header .portal-download{display:none}.portal-menu-toggle{display:flex;gap:12px;align-items:center;font-size:12px}.portal-main{width:calc(100% - 40px);padding-bottom:55px}.portal-intro{padding:55px 0 35px}.portal-intro h1{font-size:43px;letter-spacing:-2px}.portal-intro>p{font-size:14px}.portal-feature{grid-template-columns:1fr;gap:35px;padding:26px;margin-bottom:45px}.portal-feature h2{font-size:29px}.process-art{border-left:0;border-top:1px solid #cbd3c1;padding:28px 0 0;gap:3px}.process-art b{font-size:20px}.portal-grid{grid-template-columns:minmax(0,1fr);gap:17px;margin-bottom:40px}.portal-card{padding:26px}.portal-card h3{font-size:24px}.portal-card h2{font-size:28px}.portal-card p{font-size:13px}.portal-section-heading{display:block}.portal-section-heading h2{font-size:25px}.portal-section-heading p{margin-top:10px}.portal-note h2{font-size:23px}.portal-footer{width:calc(100% - 40px);gap:22px;padding-top:25px}.portal-footer-links{margin-left:0;flex-basis:100%;justify-content:space-between;gap:12px;font-size:11px}.portal-legal{gap:8px;font-size:9px}.portal-legal span:last-child{flex-basis:100%}.product-nav{justify-content:center;gap:17px;font-size:11px;padding-top:15px}.portal-intro,.portal-grid>*,.portal-feature>*{min-width:0}}
@media(prefers-reduced-motion:reduce){.resource-card{transition:none}.resource-card:hover{transform:none}}
.generator-health{padding:8px 20px;font-size:12px;color:#63705a;background:#f4f2ec;text-align:right}
.lab-connection{padding:24px;font-size:14px;color:#63705a;background:#fffefa;line-height:1.9}.portal-header~* [hidden]{display:none!important}

.legacy-toolbar{width:min(1180px,calc(100% - 40px));margin:16px auto;display:flex;justify-content:flex-end}.legacy-toolbar button{padding:7px 14px;border:1px solid #c6cbc0;border-radius:6px;background:transparent;font:inherit;font-size:12px;color:#526247;cursor:pointer}


/* 六项导航（含合作机会）在窄屏改用菜单按钮 */
@media(max-width:840px){.portal-header .portal-nav{display:none}.portal-header .portal-menu-toggle{display:flex;gap:12px;align-items:center;font-size:12px}}

/* 新版横标 logo：高度固定、宽度自适应 */
.portal-header .portal-brand img.brand-mark{width:auto;height:34px;border-radius:6px}
.portal-footer .portal-brand img.brand-mark{width:auto;height:28px;border-radius:5px}