/* ===== shijiu mega panel (20261105) desktop only ===== */
@media (min-width:1024px){
.zx-nav .zx-nav-inner{position:relative}
.zx-nav .zx-nav-item:has(> .zx-dd-panel.zx-mega4){position:static}
.zx-dd-panel.zx-mega4{position:absolute;left:50%;transform:translateX(-50%);top:100%;padding-top:10px;width:min(1160px,96vw);min-width:0}
.sm4{display:grid;grid-template-columns:250px 1fr;grid-template-rows:1fr auto;background:#fff;box-shadow:0 30px 70px rgba(18,24,40,.22);overflow:hidden}
.sm4-rail{grid-row:1/3;background:linear-gradient(180deg,#262E40,#191F2E);padding:18px 0 14px;display:flex;flex-direction:column;gap:6px}
.sm4 .sm4-rail a.sm4-cat,.sm4 .sm4-rail a.sm4-cat:visited{position:relative;display:flex;align-items:center;gap:13px;padding:16px 16px 16px 22px;color:#C3CBD9;font-size:15px;font-weight:700;text-decoration:none;border-left:3px solid transparent;transition:.18s}
.sm4-ic{width:38px;height:38px;flex:0 0 38px;display:flex;align-items:center;justify-content:center;font-size:16px;color:#8B98B3;background:rgba(255,255,255,.08);border-radius:10px;transition:.18s}
.sm4-ic svg{width:17px;height:17px;fill:currentColor}
.sm4-ct{flex:1 1 auto;display:flex;flex-direction:column;gap:2px;min-width:0}
.sm4-ct b{font-size:15px;letter-spacing:1px}
.sm4-ct em{font-style:normal;font-size:12px;font-weight:500;color:#78849E}
.sm4-arr{width:13px;height:13px;flex:0 0 13px;fill:none;stroke:currentColor;stroke-width:2.6;stroke-linecap:round;stroke-linejoin:round;opacity:0;transform:translateX(-4px);transition:.18s}
.sm4 .sm4-rail a.sm4-cat:hover,.sm4 .sm4-rail a.sm4-cat.sm4-on,.sm4 .sm4-rail a.sm4-cat.sm4-on:visited{background:rgba(255,255,255,.08);color:#fff;border-left-color:#4F8DF5}
.sm4 .sm4-rail a.sm4-cat:hover .sm4-ic,.sm4 .sm4-rail a.sm4-cat.sm4-on .sm4-ic{color:#0F172A;background:#4F8DF5}
.sm4 .sm4-rail a.sm4-cat:hover .sm4-arr,.sm4 .sm4-rail a.sm4-cat.sm4-on .sm4-arr{opacity:1;transform:translateX(0)}
.sm4-body{background:#F4F6FA;padding:22px 26px 18px;min-width:0}
.sm4-pane{display:none}
.sm4-pane:first-child{display:block}
.sm4-pane.on{display:block}
.sm4-body:has(.sm4-pane.on) .sm4-pane:first-child{display:none}
.zx-mega4:has(.sm4-rail .sm4-cat:hover) .sm4-pane{display:none}
.zx-mega4:has(.sm4-rail .sm4-cat:nth-child(1):hover) .sm4-pane:nth-child(1){display:block}
.zx-mega4:has(.sm4-rail .sm4-cat:nth-child(2):hover) .sm4-pane:nth-child(2){display:block}
.sm4-head{display:flex;align-items:baseline;gap:12px;border-bottom:2px solid #E4E9F2;padding-bottom:12px;margin-bottom:16px;flex-wrap:wrap}
.sm4-head h3{margin:0;font-size:19px;font-weight:800;color:#1B2334;position:relative;padding-left:13px;letter-spacing:1px}
.sm4-head h3::before{content:"";position:absolute;left:0;top:5px;bottom:5px;width:4px;border-radius:2px;background:#4F8DF5}
.sm4-head p{margin:0;font-size:13px;color:#6B7A94;flex:1 1 auto}
.sm4 .sm4-more{display:inline-flex;align-items:center;gap:5px;font-size:13px;font-weight:700;color:#2E62D9;text-decoration:none}
.sm4-more svg{width:12px;height:12px;fill:none;stroke:currentColor;stroke-width:2.6;stroke-linecap:round;stroke-linejoin:round;transition:transform .18s}
.sm4-more:hover svg{transform:translateX(3px)}
.sm4-row{display:grid;grid-template-columns:repeat(5,1fr);gap:13px}
.sm4-pane[data-p="2"] .sm4-row{grid-template-columns:repeat(6,1fr)}
.sm4 .sm4-row a.sm4-tcard{display:block;background:#fff;border:1px solid #E2E8F2;border-radius:12px;overflow:hidden;text-decoration:none;transition:.18s;min-width:0}
.sm4 .sm4-row a.sm4-tcard:hover{border-color:#4F8DF5;box-shadow:0 12px 26px rgba(25,40,80,.15);transform:translateY(-3px)}
.sm4-timg{position:relative;display:block;height:86px;overflow:hidden;background:#E8EDF5}
.sm4-timg img{width:100%;height:100%;object-fit:cover;display:block}
.sm4-tic{position:absolute;left:8px;bottom:8px;width:26px;height:26px;display:flex;align-items:center;justify-content:center;font-size:12px;color:#fff;background:rgba(20,30,55,.72);border-radius:8px;backdrop-filter:blur(3px)}
.sm4-tic svg{width:13px;height:13px;fill:currentColor}
.sm4 .sm4-row a.sm4-tcard b{display:block;text-align:left;font-size:13px;font-weight:700;color:#212B40;padding:10px 11px 0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.sm4 .sm4-row a.sm4-tcard em{display:flex;align-items:center;gap:4px;font-style:normal;font-size:11.5px;font-weight:600;color:#2E62D9;padding:5px 11px 10px}
.sm4 .sm4-row a.sm4-tcard em svg{width:10px;height:10px;fill:none;stroke:currentColor;stroke-width:2.8;stroke-linecap:round;stroke-linejoin:round;transition:transform .18s}
.sm4 .sm4-row a.sm4-tcard:hover em svg{transform:translateX(3px)}
.sm4-foot{grid-column:2;grid-row:2/3;display:flex;align-items:center;justify-content:space-between;border-top:1px solid #E4E9F2;padding:12px 26px;font-size:13px;color:#6B7A94;background:#fff}
.sm4-foot a{display:inline-flex;align-items:center;gap:6px;color:#2E62D9;font-weight:700;text-decoration:none}
.sm4-foot a svg{width:12px;height:12px;fill:none;stroke:currentColor;stroke-width:2.6;stroke-linecap:round;stroke-linejoin:round}
}