html,body{margin:0;padding:0}
body.split-root{font-family:"Trebuchet MS","PingFang SC","Microsoft YaHei",sans-serif;background:#e8eef6;color:#1e2a3a;line-height:1.7}
.split-root .ico{width:20px;height:20px}
.twin-row{display:grid;grid-template-columns:1fr 1fr;min-height:auto}
.pane-a,.pane-b{padding:22px 28px;box-sizing:border-box}
.pane-a{background:#f4f7fb}
.pane-b{background:#dce6f2}
.head-a{background:#325a96;color:#eef4ff}
.head-b{background:#2a4a7a;color:#d5e4ff}
.head-a .brand{display:flex;gap:8px;align-items:center;font-weight:700;font-size:18px}
.head-b .nav-list{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:6px 12px}
.head-b a{color:#d5e4ff;text-decoration:none;font-size:14px}
.ghost-hero h1{margin:0 0 12px;font-size:26px;color:#1b3358}
.ghost-viz{background:#fff;border:1px solid #b8c8dc;padding:12px}
.split-root .block{margin:0}
.split-root .block h2{margin:0 0 10px;font-size:20px;color:#325a96}
.twin-cards{display:grid;grid-template-columns:1fr;gap:10px}
.split-root .card{background:#fff;padding:12px 14px;border:1px solid #c5d3e6}
.split-root .step-list{list-style:none;margin:0;padding:0}
.split-root .step{display:flex;gap:10px;background:#fff;margin:0 0 8px;padding:10px;border-right:5px solid #325a96}
.split-root .step-n{background:#325a96;color:#fff;min-width:24px;height:24px;text-align:center;line-height:24px}
.split-root .table-wrap{background:#fff;border:2px solid #325a96}
.split-root table{width:100%;border-collapse:collapse;font-size:14px}
.split-root th{background:#325a96;color:#fff;padding:8px;text-align:left}
.split-root td{padding:8px;border-bottom:1px solid #c5d3e6;vertical-align:top}
.split-root .pair-grid{display:grid;grid-template-columns:1fr;gap:8px}
.split-root .pair{background:#fff;padding:12px;border-left:6px solid #7a9cc8}
.split-root .plain-list{margin:0;padding-left:1.1em}
.split-root .faq-list details{background:#fff;margin:0 0 8px;padding:8px 10px;border:1px solid #c5d3e6}
.split-root .faq-list summary{cursor:pointer;color:#2a4a7a}
.foot-split{display:grid;grid-template-columns:1fr 1fr}
.foot-split .site-footer{padding:16px 28px;font-size:13px;color:#3a4d66;background:#cfdced}
@media (max-width:900px){
.twin-row,.foot-split,.head-b .nav-list{grid-template-columns:1fr}
}