body {
  overflow-x: clip;
}
.sitebar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: #0c1925f5;
  border-bottom: 1px solid #304656;
  backdrop-filter: blur(14px);
}
.sitebar-inner {
  max-width: 1280px;
  margin: auto;
  display: flex;
  gap: 28px;
  align-items: center;
  padding: 12px 24px;
}
.brand {
  color: #e6edf3 !important;
  font: 700 14px/1.3 system-ui;
  letter-spacing: 0.025em;
  text-decoration: none;
  max-width: 170px;
}
.site-menu {
  display: flex;
  gap: 6px;
  flex: 1;
  justify-content: flex-end;
}
.site-menu details {
  position: relative;
}
.site-menu summary {
  cursor: pointer;
  padding: 12px;
  color: #c4d4df;
  font: 600 13px/1.5 system-ui;
  list-style: none;
  min-height: 44px;
  box-sizing: border-box;
}
.site-menu summary:after {
  content: " ⌄";
  color: #94afc0;
}
.site-menu details[open] summary {
  color: #fff;
  background: #233c50;
  border-radius: 8px;
}
.site-submenu {
  position: absolute;
  right: 0;
  min-width: 235px;
  max-height: 70vh;
  overflow: auto;
  background: #102333;
  border: 1px solid #40596d;
  border-radius: 10px;
  padding: 8px;
  box-shadow: 0 16px 35px #0007;
}
.site-submenu a {
  display: flex;
  align-items: center;
  min-height: 44px;
  padding: 6px 12px;
  color: #c1d9ec;
  text-decoration: none;
  font: 14px/1.45 system-ui;
  border-radius: 6px;
}
.site-submenu a:hover,
.site-submenu a[aria-current="page"] {
  background: #243f55;
  color: #fff;
}
.menu-button {
  display: none;
}
.page-intro {
  max-width: 1200px;
  margin: auto;
  padding: 46px 24px 24px;
}
.crumbs {
  font-size: 12px;
  color: #9caebb;
  margin-bottom: 24px;
}
.crumbs a {
  color: #aecfe9;
}
.page-intro h1 {
  font-size: clamp(32px, 4.5vw, 58px);
  line-height: 1.08;
  max-width: 1000px;
  margin: 14px 0;
  color: #eff4f7;
}
.page-intro p {
  max-width: 780px;
  color: #b6c8d5;
  font-size: 18px;
  line-height: 1.65;
}
.page-intro .eyebrow {
  font-size: 11px;
  letter-spacing: 0.16em;
  color: #9bc1df;
}
.page-content {
  max-width: 1200px;
  margin: auto;
  padding: 0 24px 48px;
}
.page-content > section {
  padding: 30px 0;
  margin: 0;
  max-width: none;
  border-top: 1px solid #2a4052;
}
.page-content h2 {
  font-size: clamp(25px, 3vw, 37px);
}
.route-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin: 24px 0;
}
.route-card {
  display: flex;
  flex-direction: column;
  padding: 24px;
  border: 1px solid #344b5e;
  border-radius: 14px;
  background: linear-gradient(145deg, #152a3c, #0e1e2b);
  color: #e4edf3;
  text-decoration: none;
  min-width: 0;
}
.route-card:hover {
  border-color: #90b8d7;
  background: #1a3348;
}
.route-card small {
  font-size: 11px;
  letter-spacing: 0.12em;
  color: #93b5cf;
}
.route-card h2,
.route-card h3 {
  font-size: 23px;
  margin: 12px 0;
  line-height: 1.2;
}
.route-card p {
  font-size: 15px;
  color: #bacbd7;
  line-height: 1.6;
  flex: 1;
}
.route-card span {
  font-size: 13px;
  color: #a8cdef;
  margin-top: 15px;
}
.route-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin: 24px 0;
}
.route-actions a {
  padding: 12px 18px;
  min-height: 44px;
  box-sizing: border-box;
  border: 1px solid #55758e;
  background: #1a3449;
  color: #dbeaf5;
  border-radius: 8px;
  text-decoration: none;
}
.research-note {
  border-left: 3px solid #8dafcb;
  padding: 14px 20px;
  background: #142737;
  margin: 22px 0;
  color: #c2d1db;
  font-size: 15px;
  line-height: 1.7;
}
.layer-summary {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}
.layer-summary article {
  border: 1px solid #344b5e;
  padding: 22px;
  border-radius: 12px;
  background: #0f202e;
}
.layer-summary p,
.layer-summary li {
  font-size: 16px;
  line-height: 1.7;
  color: #c0cfd9;
}
.layer-summary h2 {
  font-size: 23px;
}
.research-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 20px 0;
}
.research-filters button {
  padding: 12px 16px;
  min-height: 44px;
  background: #142b3e;
  border: 1px solid #466079;
  color: #c5dbea;
  border-radius: 8px;
  cursor: pointer;
}
.research-filters button[aria-pressed="true"] {
  background: #2d506a;
  color: white;
}
.news-item[hidden] {
  display: none;
}
.skip-link {
  position: fixed;
  top: -90px;
  left: 15px;
  z-index: 500;
  background: white;
  color: #07111d;
  padding: 12px;
}
.skip-link:focus {
  top: 12px;
}
.page-content .lead {
  max-width: 100%;
}
.home-hero {
  padding-bottom: 22px;
}
.home-hero h1 {
  max-width: 930px;
}
.home-hero > p {
  color: #9be3c8;
}
.home-hero em {
  font-style: normal;
  color: #a9c9e1;
}
.compact-table {
  margin-top: 18px;
}
.page-content .publication-footer {
  margin-top: 35px;
}
.legacy-anchor {
  scroll-margin-top: 100px;
}
.sitebar a:focus-visible,
.sitebar summary:focus-visible,
.route-card:focus-visible {
  outline: 2px solid #e7c983;
  outline-offset: 3px;
}
@media (max-width: 1050px) {
  .sitebar-inner {
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 10px;
    padding: 10px 18px;
  }
  .menu-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: #1b3346;
    color: #dce8ef;
    border: 1px solid #4a6277;
    border-radius: 8px;
    padding: 10px 14px;
    min-height: 44px;
    min-width: 86px;
    font: 600 13px/1.5 system-ui;
    cursor: pointer;
  }
  .menu-button[aria-expanded="true"] {
    background: #294a62;
    border-color: #7895aa;
    color: #fff;
  }
  .site-menu {
    display: none;
    flex: 0 0 100%;
    width: 100%;
    max-height: calc(100dvh - 78px);
    overflow-y: auto;
    overscroll-behavior: contain;
    padding: 4px 0 10px;
    scrollbar-gutter: stable;
  }
  .site-menu.is-open {
    display: flex;
    flex-direction: column;
    gap: 6px;
  }
  .site-menu details {
    width: 100%;
    border: 1px solid #30495c;
    border-radius: 9px;
    background: #102333;
  }
  .site-menu summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 12px 14px;
  }
  .site-menu summary:after {
    content: "+";
    font-size: 18px;
    line-height: 1;
    color: #94afc0;
  }
  .site-menu details[open] summary:after {
    content: "−";
  }
  .site-submenu {
    position: static;
    max-height: none;
    min-width: 0;
    margin: 0 7px 7px;
    padding: 5px;
    box-shadow: none;
    border-color: #2d4659;
    background: #0c1d2a;
  }
  .site-submenu a {
    padding: 7px 12px;
  }
  .route-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-intro {
    padding-top: 30px;
  }
}
@media (max-width: 600px) {
  .route-grid,
  .layer-summary {
    grid-template-columns: 1fr;
  }
  .page-content {
    padding: 0 18px 30px;
  }
  .page-intro {
    padding-left: 18px;
    padding-right: 18px;
  }
  .route-card {
    padding: 20px;
  }
  .page-intro p {
    font-size: 16px;
  }
}

/* v4.5 desktop navigation: conventional dropdowns, no horizontal/inner menu scrolling */
@media (min-width: 761px) {
  .sitebar-inner { flex-wrap: nowrap; }
  .menu-button { display: none !important; }
  .site-menu {
    display: flex !important;
    flex: 1 1 auto;
    width: auto;
    max-height: none;
    overflow: visible;
    padding: 0;
    flex-direction: row;
    gap: 4px;
    justify-content: flex-end;
  }
  .site-menu details { width: auto; border: 0; background: transparent; }
  .site-menu summary { white-space: nowrap; padding: 11px 10px; }
  .site-submenu {
    position: absolute;
    top: calc(100% + 6px);
    right: 0;
    min-width: 245px;
    width: max-content;
    max-width: min(560px, calc(100vw - 32px));
    max-height: none;
    overflow: visible;
    margin: 0;
    z-index: 250;
  }
  /* The Companies menu is the only long menu: make it a compact two-column dropdown. */
  .site-menu details:nth-of-type(3) .site-submenu {
    min-width: 500px;
    display: grid;
    grid-template-columns: repeat(2, minmax(220px, 1fr));
    gap: 2px 8px;
  }
}

/* Keep the collapsible touch menu for tablets/phones only. */
@media (min-width: 761px) and (max-width: 1050px) {
  .sitebar-inner { padding: 10px 16px; gap: 14px; }
  .brand { font-size: 12px; max-width: 145px; }
  .site-menu summary { font-size: 12px; padding: 10px 7px; }
}

/* Company menu information architecture */
.site-menu details:nth-of-type(3) .site-submenu {
  min-width: 330px;
  padding: 10px;
}
.submenu-group + .submenu-group {
  border-top: 1px solid #2f4658;
  margin-top: 7px;
  padding-top: 7px;
}
.submenu-label {
  display: block;
  padding: 7px 12px 4px;
  color: #7897ad;
  font: 700 10px/1.3 system-ui;
  letter-spacing: .13em;
  text-transform: uppercase;
}
.site-submenu .submenu-group a {
  min-height: 38px;
  padding-top: 4px;
  padding-bottom: 4px;
}
@media (max-width: 760px) {
  .site-menu details:nth-of-type(3) .site-submenu { min-width: 0; }
  .submenu-label { padding-left: 14px; }
}

/* v7.1 unified publication navigation */
.site-menu>a{display:flex;align-items:center;min-height:44px;padding:10px 11px;color:#c4d4df;text-decoration:none;font:600 14px/1.4 system-ui;border-radius:8px;white-space:nowrap}
.site-menu>a:hover,.site-menu>a[aria-current="page"]{color:#fff;background:#183246}
@media(max-width:980px){.site-menu>a{width:100%;box-sizing:border-box;padding:12px 14px;font-size:15px;border-bottom:1px solid rgba(255,255,255,.06)}}
@media(min-width:981px) and (max-width:1160px){.sitebar-inner{gap:12px}.site-menu{gap:2px}.site-menu>a{font-size:12px;padding:9px 7px}}


/* v7.1.4 — clean publication header. The full 中 identity stays in the hero;
   the sticky header uses a compact wordmark so no empty logo tile competes with navigation. */
.sitebar .brand{
  display:inline-flex!important;align-items:center!important;gap:0!important;
  max-width:none!important;min-width:max-content!important;padding:0!important;
  background:transparent!important;border:0!important;box-shadow:none!important;
  color:#eef4f6!important;text-decoration:none!important;
}
.sitebar .brand::before,.sitebar .brand::after{display:none!important;content:none!important}
.sitebar .brand span{
  display:block!important;white-space:nowrap!important;font:800 13px/1 system-ui,-apple-system,"Segoe UI",sans-serif!important;
  letter-spacing:.065em!important;color:#eef4f6!important;
}
@media(max-width:520px){.sitebar .brand span{font-size:11.5px!important;letter-spacing:.045em!important}}


/* v7.1.8 — Research Features is a publication-level destination. */
.site-menu>a[href$="articles.html"]{color:#cbbce8;border:1px solid rgba(139,121,164,.28)}
.site-menu>a[href$="articles.html"]:hover,
.site-menu>a[href$="articles.html"][aria-current="page"]{color:#fff;background:#453858;border-color:#7b6994}
.route-card.feature-route{border-color:#665879;background:linear-gradient(145deg,#1d2a3d,#171d2d)}
.route-card.feature-route small,.route-card.feature-route span{color:#cbbce8}
.route-card.feature-route:hover{border-color:#a18bc1;background:#242039}


/* v7.2.0 — persistent whole-site search affordance */
.sitebar-inner > .brand{order:0;flex:0 0 auto}
.sitebar-inner > .site-menu{order:1}
.sitebar-inner > .site-search-shortcut{order:2;flex:0 0 auto}
.sitebar-inner > .menu-button{order:3;flex:0 0 auto}
.site-search-shortcut{
  display:inline-flex;align-items:center;justify-content:center;gap:7px;
  min-height:42px;padding:0 12px;border:1px solid #3c566b;border-radius:9px;
  color:#cfe0eb;text-decoration:none;background:#122536;
  font:700 13px/1 system-ui;white-space:nowrap;
}
.site-search-shortcut:hover,.site-search-shortcut:focus-visible{
  color:#fff;background:#1a3448;border-color:#5b7c94;outline:none;
}
.site-search-shortcut svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round}
@media(min-width:981px){
  .site-menu>a[href$="search.html"]{display:none}
}
@media(max-width:980px){
  .sitebar-inner{gap:10px}
  .sitebar-inner > .site-search-shortcut{order:1;margin-left:auto}
  .sitebar-inner > .menu-button{order:2}
  .sitebar-inner > .site-menu{order:3}
  .site-search-shortcut{min-width:44px;min-height:44px;padding:0 10px}
}
@media(max-width:520px){
  .site-search-shortcut{width:44px;padding:0}
  .site-search-shortcut .search-shortcut-label{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
  .sitebar-inner{padding-left:16px;padding-right:16px}
}

/* v7.2.2 — make the current Research Feature directly discoverable in the phone menu */
.mobile-latest-feature{display:none}
@media(max-width:760px){
  .site-menu .mobile-latest-feature{display:block;margin:0 0 2px;padding:12px 14px;border:1px solid rgba(139,121,164,.48);border-radius:9px;background:linear-gradient(100deg,rgba(69,56,88,.92),rgba(24,54,49,.72));color:#f0eafa!important;font-weight:800;line-height:1.35;white-space:normal}
  .site-menu .mobile-latest-feature:hover,.site-menu .mobile-latest-feature[aria-current="page"]{background:linear-gradient(100deg,rgba(82,66,104,.98),rgba(29,67,60,.82));border-color:rgba(177,151,216,.72)}
}

/* 8 Oct UX audit: keep desktop navigation within common laptop widths.
   The feature remains accessible through Research Features and the mobile menu. */
@media (min-width: 761px) and (max-width: 1700px) {
  .site-menu > a.mobile-latest-feature { display: none !important; }
  .sitebar-inner { gap: 12px; }
  .site-menu { gap: 2px; min-width: 0; }
  .site-menu summary { padding-left: 7px; padding-right: 7px; }
}