:root {
  --kaian-header-height: 78px;
  --kaian-header-mobile-height: 68px;
  --kaian-header-container: 1400px;
  --kaian-brand-blue: #1677ff;
  --kaian-header-line: #dceafa;
  --kaian-header-shadow: 0 24px 70px rgba(45, 111, 170, 0.16);
}
.kaian-global-header { position: sticky; top: 0; z-index: 80; width: 100%; height: var(--kaian-header-height); background: rgba(255,255,255,.96); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px); border-bottom: 1px solid var(--kaian-header-line); font-family: Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",sans-serif; }
.kaian-global-header-inner { display:flex; align-items:center; justify-content:space-between; gap:20px; width:min(var(--kaian-header-container),calc(100% - 40px)); height:100%; margin:0 auto; }
.kaian-global-brand { display:inline-flex; align-items:center; gap:12px; flex:none; color:#10233f; text-decoration:none; }
.kaian-global-brand-logo { display:grid; place-items:center; width:112px; height:42px; }
.kaian-global-brand-logo img { display:block; width:100%; height:100%; object-fit:contain; }
.kaian-global-brand-copy { display:grid; gap:1px; line-height:1.1; }
.kaian-global-brand-copy strong { color:#10233f; font-size:17px; font-weight:700; letter-spacing:.04em; }
.kaian-global-brand-copy small { color:#7390ae; font-size:9px; letter-spacing:.18em; }
.kaian-global-nav { display:flex; align-items:center; justify-content:center; gap:32px; flex:1; height:100%; }
.kaian-global-nav-item { position:relative; display:flex; align-items:center; height:100%; }
.kaian-global-nav-link,.kaian-global-nav-trigger { position:relative; display:inline-flex; align-items:center; gap:5px; height:100%; padding:0; border:0; background:transparent; color:#4f657c; font:inherit; font-size:16px; font-weight:700; text-decoration:none; white-space:nowrap; cursor:pointer; transition:color .25s ease; }
.kaian-global-nav-link::after,.kaian-global-nav-trigger::after { content:""; position:absolute; left:50%; right:50%; bottom:14px; height:2px; background:var(--kaian-brand-blue); transition:all .25s ease; }
.kaian-global-nav-link:hover,.kaian-global-nav-trigger:hover,.kaian-global-nav-item.is-open>.kaian-global-nav-trigger,.kaian-global-nav-item.is-active>.kaian-global-nav-trigger { color:var(--kaian-brand-blue); }
.kaian-global-nav-item.is-open>.kaian-global-nav-trigger::after,.kaian-global-nav-item.is-active>.kaian-global-nav-trigger::after { left:0; right:0; }
.kaian-global-nav-label { display:block; }
.kaian-global-nav-chevron { display:block; width:12px; height:12px; flex:0 0 auto; transform:rotate(0deg); transform-origin:center; transition:transform .25s ease; }
.kaian-global-nav-item.is-open>.kaian-global-nav-trigger .kaian-global-nav-chevron { transform:rotate(180deg); }
.kaian-global-dropdown { position:absolute; top:calc(100% - 6px); left:50%; z-index:90; width:288px; max-width:calc(100vw - 28px); padding:10px; transform:translateX(-50%); background:#fff; border:1px solid var(--kaian-header-line); border-radius:16px; box-shadow:var(--kaian-header-shadow); }
.kaian-global-dropdown a,.kaian-global-account-logout { display:flex; align-items:center; width:100%; min-height:42px; padding:10px 12px; border:0; border-radius:10px; background:transparent; color:#3d536e; font:inherit; font-size:14px; font-weight:650; text-align:left; text-decoration:none; cursor:pointer; }
.kaian-global-dropdown a:hover,.kaian-global-account-logout:hover { color:var(--kaian-brand-blue); background:#f5faff; }
.kaian-global-separator { display:block; height:1px; margin:7px 8px; background:var(--kaian-header-line); }
.kaian-global-actions { display:flex; align-items:center; gap:12px; flex:none; }
.kaian-global-cta { display:inline-flex; align-items:center; justify-content:center; min-height:40px; padding:0 18px; border-radius:12px; background:linear-gradient(135deg,#1677ff,#32adff); color:#fff; font-size:14px; font-weight:700; text-decoration:none; box-shadow:0 15px 34px rgba(22,119,255,.24); }
.kaian-global-menu-button { display:none; width:42px; height:42px; padding:9px; border:0; background:transparent; }
.kaian-global-menu-button span { display:block; height:2px; margin:5px; border-radius:2px; background:#21405e; }
.kaian-global-nav a:focus-visible,.kaian-global-nav-trigger:focus-visible,.kaian-global-account-logout:focus-visible,.kaian-global-menu-button:focus-visible,.kaian-global-cta:focus-visible { outline:3px solid rgba(22,119,255,.24); outline-offset:2px; }
.kaian-global-mobile-panel { display:none!important; }
@media (max-width:1020px) and (min-width:781px) { .kaian-global-nav{gap:16px}.kaian-global-nav-link,.kaian-global-nav-trigger{font-size:14px}.kaian-global-brand-logo{width:96px}.kaian-global-brand-copy{display:none} }
@media (max-width:780px) {
  .kaian-global-header{height:var(--kaian-header-mobile-height)}
  .kaian-global-header-inner{width:min(100% - 28px,var(--kaian-header-container))}
  .kaian-global-brand-logo{width:96px;height:36px}.kaian-global-brand-copy strong{font-size:15px}.kaian-global-brand-copy small{font-size:8px;letter-spacing:.14em}
  .kaian-global-menu-button{display:block}.kaian-global-cta{display:none}
  .kaian-global-nav{position:absolute;top:calc(100% + 1px);left:14px;right:14px;display:none;height:auto;max-height:calc(100vh - 88px);overflow:auto;padding:12px;border:1px solid var(--kaian-header-line);border-radius:16px;background:#fff;box-shadow:var(--kaian-header-shadow);flex-direction:column;align-items:stretch;gap:4px}
  .kaian-global-header.is-menu-open .kaian-global-nav{display:flex}
  .kaian-global-nav-item{display:block;width:100%;height:auto}
  .kaian-global-nav-link,.kaian-global-nav-trigger{width:100%;min-height:48px;height:auto;padding:13px 14px;justify-content:space-between;border-radius:10px}
  .kaian-global-nav-link::after,.kaian-global-nav-trigger::after{display:none}.kaian-global-nav-item.is-active>.kaian-global-nav-trigger{color:var(--kaian-brand-blue);background:#f5faff}
  .kaian-global-dropdown{position:static;width:100%;max-width:none;padding:4px 8px 8px;transform:none;border:0;border-radius:0;box-shadow:none;background:transparent}.kaian-global-dropdown a,.kaian-global-account-logout{padding-left:24px}
}
@media (max-width:430px){.kaian-global-brand-copy{display:none}}
@media (prefers-reduced-motion:reduce){.kaian-global-header *{transition-duration:.01ms!important;animation-duration:.01ms!important}}
.kaian-footer-nav { display:flex; flex-wrap:wrap; gap:8px 18px; margin:0 0 18px; padding:0 0 16px; border-bottom:1px solid var(--line,rgba(38,132,226,.16)); }
.kaian-footer-nav a { color:#24486e; font-size:12px; font-weight:600; text-decoration:none; }
.kaian-footer-nav a:hover,.kaian-footer-nav a[aria-current="page"] { color:#1677ff; }