/* Portal only. Existing white/blue shell and private operation workbench remain. */
#overview{--home-ink:#153451;--home-muted:#637b95;--home-blue:#3266da;--home-line:#dbe5f2;padding-top:34px;color:var(--home-ink)}
#overview .portal-kicker{display:flex;gap:12px;align-items:center;font-size:11px;letter-spacing:1.3px;color:var(--home-muted)}
#overview .portal-kicker-line{width:27px;height:2px;background:var(--home-blue)}
#overview .portal-hero{display:grid;grid-template-columns:minmax(300px,.95fr) minmax(350px,1.1fr);gap:30px;align-items:center;padding:25px 0 32px}
#overview .portal-hero h1{font-family:"Songti SC","Noto Serif CJK SC","STSong","Microsoft YaHei",serif;font-size:clamp(34px,3.35vw,58px);font-weight:650;letter-spacing:-1.8px;line-height:1.44;margin:12px 0 22px}
#overview .portal-hero h1 span{color:var(--home-blue)}
#overview .portal-hero-copy>p{font-size:16px;line-height:1.95;color:var(--home-muted);margin-bottom:27px}
#overview .portal-hero-actions{display:flex;gap:12px;align-items:center;flex-wrap:wrap}
#overview .portal-hero-actions a,#overview .portal-hero-actions button{border-radius:6px;font-size:13px;padding:12px 17px;text-decoration:none;font-weight:600;display:inline-flex;align-items:center;gap:25px}
#overview .portal-hero-actions a{color:white;background:var(--home-blue);border:1px solid var(--home-blue)}
#overview .portal-hero-actions a:hover{background:#2255be}
#overview .portal-hero-actions button{background:transparent;border-color:#cbd9eb}
#overview .portal-hero-caption{margin-top:29px;font-size:10px;color:#7a8fa6;display:flex;gap:14px;align-items:center}
#overview .portal-hero-caption>span{font-size:11px;color:#34577d;padding-right:14px;border-right:1px solid #c9d6e7;font-weight:600}
#overview .portal-diagram{margin:0;position:relative;min-width:0;border:1px solid #e3ebf6;background:#f8fbff;border-radius:3px}
#overview .portal-diagram svg{display:block;width:100%;height:auto}
#overview .portal-diagram figcaption{display:flex;justify-content:space-between;padding:10px 18px;border-top:1px solid #e2eaf5;color:#7b91ab;font-size:10px}
#overview .portal-diagram figcaption span:first-child{color:#446a95}
#overview .portal-principles{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--home-line);border-bottom:1px solid var(--home-line);padding:22px 0;gap:20px}
#overview .portal-principles>div{display:flex;gap:13px;align-items:flex-start;border-right:1px solid var(--home-line)}
#overview .portal-principles>div:last-child{border:0}
#overview .portal-principles>div>span{font:11px/1.8 ui-monospace,monospace;color:#7695bc;padding-top:1px}
#overview .portal-principles p{font-size:11px;color:var(--home-muted);margin:0;line-height:1.9}
#overview .portal-principles b{display:block;color:#2d5077;font-size:13px;font-weight:600;margin-bottom:3px}
#overview .portal-section{padding:42px 0 10px}
#overview .section-title{margin:0 0 25px;align-items:flex-end}
#overview .section-title small{color:#6c85a3;font-size:9px;letter-spacing:1.5px}
#overview .section-title h2{font-size:27px;line-height:1.55;letter-spacing:-.6px;margin:9px 0 0;font-weight:600}
#overview .portal-section-note{font-size:11px;line-height:1.9;color:var(--home-muted);margin:0 0 3px}
#overview .portal-matrix-toolbar{display:flex;gap:15px;align-items:center;justify-content:space-between;border-bottom:1px solid var(--home-line);padding-bottom:15px}
#overview .portal-filters{display:flex;gap:5px;flex-wrap:wrap}
#overview .portal-filters button{background:transparent;border:1px solid transparent;border-radius:5px;font-size:12px;padding:7px 11px;color:#6b809a}
#overview .portal-filters button[aria-pressed=true]{color:#285fb3;background:#e9f1ff;border-color:#d4e2f7;font-weight:600}
#overview #portalMatrixCount{font-size:10px;color:#7890ad;white-space:nowrap}
#overview .catalog-status{font-size:10px;max-width:none;margin:13px 0 4px;color:#7389a2}
#overview .portal-matrix{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 26px}
#overview a.product{padding:23px 0;min-height:155px;display:grid;grid-template-columns:27px minmax(0,1fr);gap:0 13px;align-content:start;border:0;border-bottom:1px solid var(--home-line);border-radius:0;background:transparent;box-shadow:none;transform:none;position:relative}
#overview a.product:hover{border-color:#9bb9e1;background:#eef4fc;box-shadow:none;transform:none}
#overview .product-index{grid-row:1/3;font:11px/1.5 ui-monospace,monospace;color:#7c9cc2;border-top:2px solid #b7cce8;padding-top:7px;margin-right:3px}
#overview .product-copy{min-width:0}
#overview .product h3{font-size:19px;color:#214a78;font-weight:600;margin:0 0 5px;line-height:1.4}
#overview .product p{font-size:12px;line-height:1.75;margin:0 0 7px;color:#58718f}
#overview .product-scope{font-size:11px;color:#70859e;display:block;line-height:1.65}
#overview .product-tail{grid-column:2;display:flex;justify-content:space-between;align-items:center;gap:9px;margin-top:13px}
#overview .product .pill{font-size:10px;padding:3px 7px;border-radius:3px;white-space:normal;line-height:1.6;background:#eef1f6;color:#74859b}
#overview .product .pill.available{background:#eaf2fe;color:#36679c}
#overview .product-cta{font-size:11px;white-space:nowrap;margin:0;color:#346ac0;font-weight:500}
#overview .portal-readiness{display:flex;gap:11px;font-size:11px;color:#788ca4;padding:19px 0 0}
#overview .portal-readiness>span{color:#6084b4;font-size:17px;line-height:1.5}
#overview .portal-readiness p{line-height:1.9;margin:0}
#overview .portal-readiness b{color:#4c6d95;font-weight:500}
#overview .portal-journey{padding-top:47px}
#overview .portal-journey .section-title>span{font-size:10px;color:#7e91a7}
#overview .portal-scenarios{display:flex;gap:0;border-bottom:1px solid #cfdaea}
#overview .portal-scenarios button{border:0;background:none;border-radius:0;border-bottom:2px solid transparent;padding:13px 22px 13px 0;margin-right:22px;color:#7890ab;font-size:12px}
#overview .portal-scenarios button[aria-selected=true]{color:#2a61a4;border-bottom-color:#3266da;font-weight:600}
#overview .portal-scenario-panel{background:#edf4fd;padding:26px 26px 23px;border:1px solid #e0eaf7;border-top:0}
#overview .portal-scenario-intro{display:flex;justify-content:space-between;align-items:flex-start;gap:22px;margin-bottom:23px}
#overview .portal-scenario-intro h3{font-size:18px;line-height:1.5;margin:0 0 6px;color:#294f7c;font-weight:600}
#overview .portal-scenario-intro p{font-size:11px;line-height:1.9;color:#7388a1;margin:0;max-width:630px}
#overview .portal-scenario-steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;list-style:none;padding:0;margin:0}
#overview .portal-scenario-steps li{border-top:1px solid #bfd2ec;padding-top:12px}
#overview .portal-scenario-steps small{font:10px/1.5 ui-monospace,monospace;color:#8ba1be;display:block;margin-bottom:9px}
#overview .portal-scenario-steps b{font-size:12px;display:block;color:#3c5e88;margin-bottom:5px;font-weight:600}
#overview .portal-scenario-steps p{font-size:10px;line-height:1.85;color:#7288a3;margin:0}
#overview .portal-scenario-steps a{color:#2d65b1;font-size:11px;display:inline-block;margin-top:11px;text-decoration:none;border-bottom:1px solid #b1caed}
#overview .portal-scenario-foot{margin-top:23px;padding-top:14px;border-top:1px solid #d4e1f3;font-size:10px;line-height:1.9;color:#6a84a4}
#overview .portal-adoption{display:grid;grid-template-columns:1fr 1fr;gap:25px 55px;margin:55px 0 20px;padding:35px 36px;background:#163b63;color:white;border-radius:4px}
#overview .portal-adoption small{font-size:9px;letter-spacing:1.7px;color:#95b4d9}
#overview .portal-adoption h2{font-size:25px;line-height:1.6;margin:11px 0 13px;color:#f3f7ff;font-weight:500}
#overview .portal-adoption>div>p{font-size:11px;color:#b0c5df;line-height:1.9;margin:0}
#overview .portal-adoption ol{padding:0;list-style:none;margin:0}
#overview .portal-adoption li{display:flex;gap:14px;border-bottom:1px solid #35597e;padding:0 0 14px;margin-bottom:14px}
#overview .portal-adoption li:last-child{border:0;margin:0;padding:0}
#overview .portal-adoption li>span{font:10px/2 ui-monospace,monospace;color:#89abd4}
#overview .portal-adoption li b{font-size:12px;color:#e5efff;font-weight:500}
#overview .portal-adoption li p{font-size:10px;color:#a5bbd6;margin:4px 0 0;line-height:1.8}
#overview .portal-adoption-actions{grid-column:1/-1;display:flex;gap:22px;align-items:center;border-top:1px solid #35597e;padding-top:22px}
#overview .portal-adoption-actions a{display:inline-flex;gap:50px;padding:10px 16px;font-size:12px;background:#f0f6ff;color:#254e7c;text-decoration:none;border-radius:4px;font-weight:600}
#overview .portal-adoption-actions button{background:transparent;border:0;color:#c4d7ef;padding:8px 0;font-size:11px}
#overview [hidden]{display:none!important}
#overview :is(a,button):focus-visible{outline:3px solid #8aafef;outline-offset:4px}
@media(min-width:1700px){#overview .portal-hero{gap:60px}#overview .portal-hero h1{font-size:61px}#overview .portal-diagram{max-width:680px;justify-self:end;width:100%}#overview .portal-matrix{gap:0 50px}#overview a.product{grid-template-columns:32px minmax(0,1fr);padding:26px 0}}
@media(max-width:1100px){#overview .portal-hero{grid-template-columns:1fr 1fr;gap:18px}#overview .portal-hero h1{font-size:36px;letter-spacing:-1px}#overview .portal-hero-copy>p{font-size:13px}#overview .portal-hero-actions{gap:8px}#overview .portal-hero-actions a,#overview .portal-hero-actions button{font-size:11px;padding:10px 12px;gap:12px}#overview .portal-hero-caption{font-size:9px;gap:8px}#overview .portal-principles{gap:13px}#overview .portal-principles>div{gap:8px}#overview .portal-principles p{font-size:10px}#overview .portal-principles b{font-size:12px}#overview .portal-scenario-steps{gap:11px}#overview .product-tail{align-items:flex-start;flex-direction:column;gap:8px}}
@media(max-width:760px){#overview{padding-top:25px}#overview .portal-kicker{font-size:10px}#overview .portal-hero{grid-template-columns:1fr;padding-top:13px;gap:27px}#overview .portal-hero h1{font-size:39px;line-height:1.45;letter-spacing:-1.3px;margin-top:8px}#overview .portal-hero-copy>p{font-size:14px;margin-bottom:23px}#overview .portal-hero-actions a,#overview .portal-hero-actions button{font-size:12px;padding:11px 14px}#overview .portal-hero-caption{margin-top:22px;font-size:10px}#overview .portal-diagram{max-width:520px;width:100%;justify-self:center}#overview .portal-diagram figcaption{font-size:9px;padding:10px 12px}#overview .portal-principles{grid-template-columns:1fr;padding:19px 0;gap:15px}#overview .portal-principles>div{border:0;gap:13px}#overview .portal-principles b{display:inline;font-size:12px;margin-right:10px}#overview .portal-principles p{font-size:10px}#overview .portal-section{padding-top:33px}#overview .section-title{gap:11px;align-items:flex-start}#overview .section-title h2{font-size:25px}#overview .portal-section-note{font-size:11px}#overview .portal-matrix-toolbar{align-items:flex-start;flex-direction:column;gap:9px}#overview .portal-filters{gap:3px}#overview .portal-filters button{padding:6px 8px;font-size:10px}#overview #portalMatrixCount{font-size:10px}#overview .portal-matrix{grid-template-columns:1fr}#overview a.product{min-height:0;padding:21px 0}#overview .product h3{font-size:20px}#overview .product p{font-size:12px}#overview .product-scope{font-size:10px}#overview .product-tail{flex-direction:row;align-items:center}#overview .product .pill{font-size:9px}#overview .product-cta{font-size:11px}#overview .portal-scenarios{justify-content:space-between}#overview .portal-scenarios button{padding:12px 0;margin:0;font-size:11px}#overview .portal-scenario-panel{padding:20px 17px}#overview .portal-scenario-intro h3{font-size:17px}#overview .portal-scenario-steps{grid-template-columns:repeat(2,minmax(0,1fr));gap:22px 16px}#overview .portal-scenario-steps p{font-size:11px}#overview .portal-scenario-foot{font-size:10px}#overview .portal-adoption{grid-template-columns:1fr;padding:27px 21px;gap:24px;margin-top:37px}#overview .portal-adoption h2{font-size:25px}#overview .portal-adoption>div>p br{display:none}#overview .portal-adoption-actions{align-items:flex-start;flex-direction:column;gap:11px}#overview .portal-readiness{font-size:10px}}
@media(prefers-reduced-motion:no-preference){#overview .portal-hero-copy,#overview .portal-diagram{animation:portal-arrive .45s ease both}#overview .portal-diagram{animation-delay:.08s}@keyframes portal-arrive{from{opacity:0;transform:translateY(7px)}to{opacity:1;transform:none}}}
/* 保持中等屏幕下首屏文案清晰，避免标题被挤碎。 */
#overview .portal-hero-caption>span{white-space:nowrap}
@media (min-width:761px) and (max-width:1100px){
  #overview .portal-hero{grid-template-columns:minmax(0,1fr);gap:24px}
  #overview .portal-diagram{width:100%;max-width:520px;justify-self:center}
  #overview .portal-hero h1{font-size:36px}
  #overview .portal-hero-copy>p{font-size:15px;max-width:36em}
}

/* Product discovery: shared filter and search, retaining the existing blue palette. */
#overview .portal-search{display:flex;align-items:center;gap:9px;color:#58718f;font-size:12px;margin-left:auto;white-space:nowrap}
#overview .portal-search input{width:190px;max-width:100%;padding:9px 12px;border:1px solid #cddff2;border-radius:8px;background:#fff;color:#214a78;font:inherit}
#overview .portal-search input:focus-visible,#overview .portal-empty button:focus-visible{outline:3px solid #a8c9f2;outline-offset:2px}
#overview .portal-empty{padding:22px;margin:14px 0;background:#f2f7fd;border:1px solid #d8e8f8;border-radius:10px;color:#526f90;font-size:13px}
#overview .portal-empty button{border:0;background:transparent;color:#205fa9;text-decoration:underline;padding:0;cursor:pointer;font:inherit}
@media(max-width:900px){#overview .portal-matrix-toolbar{flex-wrap:wrap}#overview .portal-search{margin-left:0}}
@media(max-width:760px){#overview .portal-search{width:100%;justify-content:space-between}#overview .portal-search input{width:min(70%,300px)}}

/* Product directory: keep the established blue-white identity while making each
   product entry a distinct, easy-to-scan destination. */
#overview .portal-matrix{gap:14px;margin-top:14px}
#overview a.product{grid-template-columns:36px minmax(0,1fr);gap:0 15px;min-height:160px;padding:20px 21px;background:#fff;border:1px solid #dfe9f5;border-radius:12px;box-shadow:0 5px 20px rgba(31,72,119,.035);transition:border-color .18s ease,box-shadow .18s ease,transform .18s ease}
#overview a.product:hover{background:#fff;border-color:#acc9ed;box-shadow:0 10px 25px rgba(31,72,119,.09);transform:translateY(-2px)}
#overview a.product:focus-visible{outline:3px solid #8aafef;outline-offset:3px}
#overview .product-index{display:grid;place-items:center;width:34px;height:34px;margin:0;padding:0;border:1px solid #dbe9f8;border-radius:9px;background:#f2f7fe;color:#6387b5;font:600 11px/1 ui-monospace,monospace}
#overview .product h3{font-size:18px;color:#204a78;line-height:1.45;margin-bottom:5px}
#overview .product p{font-size:12px;color:#4d698a;line-height:1.7}
#overview .product-scope{font-size:11px;color:#71869e;line-height:1.65}
#overview .product-tail{margin-top:14px;align-items:center}
#overview .product-cta{color:#2d66b5}
@media(max-width:1100px){#overview .product-tail{align-items:center;flex-direction:row}}
@media(max-width:760px){#overview .portal-matrix{grid-template-columns:1fr;gap:10px}#overview a.product{padding:18px;min-height:0;grid-template-columns:34px minmax(0,1fr);gap:0 12px}#overview .product h3{font-size:17px}#overview .product p{font-size:12px}#overview .product-scope{font-size:11px}}
@media(prefers-reduced-motion:reduce){#overview a.product{transition:none}#overview a.product:hover{transform:none}}