:root { --pb-blue:#0969e8; --pb-blue-dark:#0755bc; --pb-navy:#0d2c52; --pb-text:#3b5878; --pb-line:#dbe7f5; --pb-bg:#f5f9ff; }
.pb-site-shell,.pb-footer,.pb-mobile-fixed { box-sizing:border-box; font-family:"Microsoft YaHei","PingFang SC",Arial,sans-serif; }
.pb-site-shell *,.pb-footer *,.pb-mobile-fixed * { box-sizing:border-box; }
.pb-shell-container { width:min(1180px,calc(100% - 40px)); margin:0 auto; }
.pb-topbar { background:#0d2c52; color:#c9d9eb; font-size:13px; }
.pb-topbar .pb-shell-container { min-height:34px; display:flex; align-items:center; justify-content:space-between; gap:20px; }
.pb-header { background:#fff; border-bottom:1px solid #edf2f8; }
.pb-header-row { min-height:98px; display:flex; align-items:center; gap:34px; }
.pb-logo { display:flex; align-items:center; flex:0 0 auto; }
.pb-logo img { display:block; width:258px; height:72px; object-fit:contain; }
.pb-positioning { margin:0; padding-left:28px; border-left:1px solid #d7e0eb; color:#647c96; font-size:15px; line-height:1.8; }
.pb-positioning strong,.pb-positioning span { display:block; }
.pb-positioning strong { color:#0d2c52; font-size:18px; }
.pb-phone { margin-left:auto; display:flex; flex-direction:column; color:#667f98; text-decoration:none; line-height:1.4; }
.pb-phone strong { color:#0969e8; font-size:22px; letter-spacing:.4px; }
.pb-nav-toggle { display:none; }
.pb-nav { position:relative; z-index:40; background:#0969e8; }
.pb-nav>ul { list-style:none; display:flex; align-items:stretch; justify-content:center; min-height:58px; margin:0 auto; padding:0; }
.pb-nav>ul>li { position:relative; display:flex; align-items:stretch; }
.pb-nav a { text-decoration:none; }
.pb-nav>ul>li>a { display:flex; align-items:center; padding:0 42px; color:#fff; font-size:16px; font-weight:650; }
.pb-nav>ul>li:hover,.pb-nav>ul>li.is-active { background:#0755bc; }
.pb-submenu-toggle { border:0; background:transparent; color:#fff; padding:0 12px 0 0; font-size:20px; cursor:pointer; }
.pb-submenu { position:absolute; top:100%; left:0; min-width:190px; list-style:none; margin:0; padding:8px; background:#fff; border:1px solid #dce8f6; border-radius:0 0 12px 12px; box-shadow:0 18px 40px rgba(13,44,82,.18); opacity:0; visibility:hidden; transform:translateY(8px); transition:.18s ease; }
.pb-has-submenu:hover .pb-submenu,.pb-has-submenu:focus-within .pb-submenu,.pb-has-submenu.is-open .pb-submenu { opacity:1; visibility:visible; transform:none; }
.pb-submenu li a { display:block; padding:11px 14px; border-radius:8px; color:#244665; font-size:15px; }
.pb-submenu li a:hover,.pb-submenu li.is-current a { color:#0969e8; background:#eff6ff; }
.pb-footer { margin-top:0; color:#c3d1e1; background:#0d2239; }
.pb-footer-grid { display:grid; grid-template-columns:1.5fr .9fr 1fr 1.35fr; gap:46px; padding-top:50px; padding-bottom:38px; }
.pb-footer h2 { margin:0 0 16px; color:#fff; font-size:17px; line-height:1.4; }
.pb-footer-brand h2 { color:#69aaff; font-size:24px; }
.pb-footer p { margin:0 0 10px; color:#aebfd2; font-size:14px; line-height:1.8; }
.pb-footer a { display:block; width:max-content; max-width:100%; margin:0 0 11px; color:#c8d7e7; font-size:14px; line-height:1.6; text-decoration:none; }
.pb-footer a:hover { color:#fff; }
.pb-footer-operator { padding-top:4px; }
.pb-footer-contact img { display:block; margin-top:14px; padding:5px; background:#fff; border-radius:8px; object-fit:cover; }
.pb-footer-legal { border-top:1px solid rgba(255,255,255,.1); }
.pb-footer-legal .pb-shell-container { min-height:58px; display:flex; align-items:center; gap:20px; flex-wrap:wrap; color:#91a6ba; font-size:13px; }
.pb-footer-legal a { display:inline; margin:0; }
.pb-mobile-fixed { display:none; }
.pb-legacy-page { margin:0; color:#244665; background:#fff; }
.pb-legacy-page .banner-sub { height:210px; background-position:center; background-size:cover; }
.pb-legacy-page .position { border-bottom:1px solid #e4edf7; background:#f7faff; }
.pb-legacy-page .position .container { color:#698098; }
.pb-legacy-page .section { padding-top:34px; padding-bottom:46px; }
.pb-legacy-page .ct2-mn { min-height:520px; }
.pb-legacy-page .mrt { margin:0 0 24px; color:#0d2c52; font-size:30px; line-height:1.35; }
.pb-legacy-page .list-4 li { border-color:#e1eaf4; }
.pb-legacy-page .list-4 h3 a { color:#163f68; }
.pb-legacy-page .list-4 h3 a:hover { color:#0969e8; }
.pb-knowledge-intro { margin:0 0 24px; padding:22px 24px; border:1px solid #d9e7f7; border-radius:14px; background:#f5f9ff; }
.pb-knowledge-intro p { margin:0; color:#4e6a86; line-height:1.8; }
.pb-knowledge-links { display:grid; grid-template-columns:repeat(4,1fr); gap:12px; margin-top:18px; }
.pb-knowledge-links a { display:flex; align-items:center; justify-content:center; min-height:46px; padding:8px 12px; color:#075fcf; background:#fff; border:1px solid #cfe0f5; border-radius:10px; font-weight:650; text-decoration:none; }
.pb-knowledge-links a:hover { color:#fff; background:#0969e8; border-color:#0969e8; }
.pb-contact-page .contact { padding:26px; border:1px solid #dbe7f5; border-radius:16px; background:#fff; box-shadow:0 16px 42px rgba(13,44,82,.07); }
.pb-contact-page .title { margin-bottom:22px; }
@media (max-width:900px) {
  .pb-shell-container { width:min(100% - 28px,760px); }
  .pb-topbar .pb-shell-container { justify-content:center; min-height:30px; }
  .pb-topbar span:last-child { display:none; }
  .pb-header-row { min-height:72px; gap:12px; }
  .pb-logo img { width:178px; height:50px; }
  .pb-positioning,.pb-phone { display:none; }
  .pb-nav-toggle { margin-left:auto; width:44px; height:44px; border:1px solid #dbe6f2; border-radius:10px; background:#fff; display:flex; flex-direction:column; align-items:center; justify-content:center; gap:4px; color:#17436f; }
  .pb-nav-toggle span { width:20px; height:2px; background:#17436f; }
  .pb-nav-toggle b { position:absolute; width:1px; height:1px; overflow:hidden; clip:rect(0 0 0 0); }
  .pb-nav { display:none; background:#fff; border-top:1px solid #edf2f8; box-shadow:0 12px 30px rgba(13,44,82,.12); }
  .pb-nav.is-open { display:block; }
  .pb-nav>ul { display:block; min-height:0; padding:8px 0 12px; }
  .pb-nav>ul>li { display:grid; grid-template-columns:1fr auto; border-bottom:1px solid #edf2f8; }
  .pb-nav>ul>li>a { min-height:48px; padding:0 16px; color:#183f66; font-size:15px; }
  .pb-nav>ul>li:hover,.pb-nav>ul>li.is-active { background:#f1f7ff; }
  .pb-submenu-toggle { color:#0969e8; padding:0 18px; }
  .pb-submenu { position:static; grid-column:1/-1; display:none; min-width:0; margin:0 10px 10px; padding:4px; border:0; border-radius:8px; box-shadow:none; opacity:1; visibility:visible; transform:none; background:#f5f9ff; }
  .pb-has-submenu.is-open .pb-submenu { display:block; }
  .pb-legacy-page .banner-sub { height:120px; }
  .pb-legacy-page .section { padding:22px 0 32px; }
  .pb-legacy-page .mrt { font-size:25px; }
  .pb-knowledge-links { grid-template-columns:1fr 1fr; }
  .pb-footer-grid { grid-template-columns:1fr 1fr; gap:30px 24px; padding-top:38px; padding-bottom:30px; }
  .pb-footer-brand,.pb-footer-contact { grid-column:1/-1; }
  .pb-footer-legal .pb-shell-container { justify-content:center; padding:14px 0 78px; text-align:center; }
  .pb-mobile-fixed { position:fixed; z-index:80; left:0; right:0; bottom:0; display:grid; grid-template-columns:repeat(3,1fr); min-height:58px; background:#fff; border-top:1px solid #dce7f3; box-shadow:0 -8px 30px rgba(13,44,82,.12); }
  .pb-mobile-fixed a { display:grid; place-items:center; color:#23496f; font-size:13px; font-weight:650; text-decoration:none; }
  .pb-mobile-fixed a:first-child { color:#fff; background:#0969e8; }
}
@media (max-width:520px) {
  .pb-shell-container { width:calc(100% - 24px); }
  .pb-footer-grid { grid-template-columns:1fr 1fr; gap:26px 16px; }
  .pb-footer-brand,.pb-footer-contact { grid-column:1/-1; }
}