:root{--b1:#0f1b2d;--b2:#0a1220;--ac:#0984e3;--a2:#5bacf7;--tx:#e8edf5;--mt:#8899b0;--bd:rgba(255,255,255,0.06);--navbg:rgba(0,0,0,0.9);--cardbg:rgba(255,255,255,0.02);--r:8px;--fn:'Segoe UI','PingFang SC','Microsoft YaHei',sans-serif}*{margin:0;padding:0;box-sizing:border-box}body{font-family:var(--fn);background:var(--b1);color:var(--tx);line-height:1.6}a{text-decoration:none;color:inherit}img{max-width:100%;height:auto}.xb28_h{background:var(--navbg);backdrop-filter:blur(20px);padding:10px 0;border-bottom:1px solid var(--bd);position:sticky;top:0;z-index:100}.xb28_hi{max-width:900px;margin:0 auto;padding:0 20px;display:flex;align-items:center;justify-content:space-between}.xb28_lgo{font-size:1rem;font-weight:700;background:linear-gradient(135deg,#fff,var(--ac));-webkit-background-clip:text;-webkit-text-fill-color:transparent}.xb28_nv a{padding:5px 12px;font-size:.85rem;color:var(--mt);border-radius:4px}.xb28_nv a:hover,.xb28_nv a.act{color:inherit;background:rgba(128,128,128,0.12)}.xb28_hd{padding:50px 20px 20px;max-width:900px;margin:0 auto}.xb28_hd h1{font-size:1.4rem;font-weight:700}ul{max-width:900px;margin:0 auto;padding:0 20px 24px;list-style:none}li a{transition:all .2s}li a:hover{background:var(--cardbg)}.xb28_pg{display:flex;justify-content:center;gap:6px;padding:16px}.xb28_ft{border-top:1px solid var(--bd);padding:14px 20px;max-width:900px;margin:0 auto;font-size:.85rem;color:var(--mt);text-align:center}.xb28_h{background:var(--navbg);backdrop-filter:blur(20px);padding:10px 0;border-bottom:1px solid var(--bd);position:sticky;top:0;z-index:100}.xb28_hi{max-width:800px;margin:0 auto;padding:0 20px;display:flex;align-items:center;justify-content:space-between}.xb28_lgo{font-size:1rem;font-weight:700;background:linear-gradient(135deg,#fff,var(--ac));-webkit-background-clip:text;-webkit-text-fill-color:transparent}.xb28_nv a{padding:5px 12px;font-size:.85rem;color:var(--mt);border-radius:4px}.xb28_nv a:hover,.xb28_nv a.act{color:inherit;background:rgba(128,128,128,0.12)}.xb28_aw{max-width:800px;margin:0 auto;padding:30px 20px 40px}.xb28_ab{margin-bottom:20px;display:inline-flex;align-items:center;gap:6px;color:var(--mt);font-size:.82rem}.xb28_ab:hover{color:var(--ac)}.xb28_ac{background:var(--cardbg);border:1px solid var(--bd);border-radius:var(--r);padding:24px}.xb28_ac h1{font-size:1.3rem;font-weight:700;margin-bottom:16px;line-height:1.3}.xb28_abd{font-size:.88rem;line-height:1.8;color:var(--mt)}.xb28_abd p{margin-bottom:14px}.xb28_ft{border-top:1px solid var(--bd);padding:14px 20px;max-width:800px;margin:0 auto;font-size:.7rem;color:var(--mt);text-align:center}.xb28_se{padding:40px 0}.xb28_st{text-align:center;margin-bottom:24px}.xb28_st h2{font-size:clamp(1.2rem,2.5vw,1.4rem);font-weight:700;margin-bottom:6px}.xb28_st p{color:var(--mt);font-size:.82rem}.xb28_g3{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.xb28_gc{display:block;background:var(--cardbg);border:1px solid var(--bd);border-radius:var(--r);padding:18px 16px;transition:all .3s;color:var(--tx)}.xb28_gc:hover{border-color:var(--ac);transform:translateY(-2px)}.xb28_gt{font-size:.65rem;text-transform:uppercase;letter-spacing:1px;color:var(--ac);font-weight:600;margin-bottom:4px}.xb28_gc h3{font-size:.85rem;font-weight:600;margin-bottom:4px}.xb28_gc p{font-size:.75rem;color:var(--mt);line-height:1.4}.xb28_gm{font-size:.72rem;font-weight:600;color:var(--ac);margin-top:6px;display:inline-block}.xb28_bp,.xb28_bs{display:inline-flex;padding:10px 24px;border-radius:50px;font-weight:600;font-size:.8rem;border:none}.xb28_bp{background:linear-gradient(135deg,var(--ac),var(--a2));color:#fff}.xb28_bs{background:rgba(128,128,128,0.08)}.xb28_hr{background:linear-gradient(135deg,var(--b2),var(--b1),var(--b2))}.xb28_ft{background:var(--b2);border-top:1px solid var(--bd)}@media(max-width:768px){.xb28_g3{grid-template-columns:1fr 1fr}}@media(max-width:500px){.xb28_g3{grid-template-columns:1fr}}
@media(max-width:768px){
body{font-size:15px}
nav,.xb28_nv{overflow-x:auto;white-space:nowrap;-webkit-overflow-scrolling:touch}
.xb28_hi,.xb28_aw,.xb28_hd,ul,table,.xb28_ls,.xb28_ac,.xb28_se{padding-left:16px!important;padding-right:16px!important}
.xb28_hi{flex-wrap:wrap;gap:8px}
.xb28_ft{padding:12px 16px!important;font-size:.65rem}
.xb28_hd h1{font-size:1.2rem!important}
.xb28_g3{gap:10px!important}
.xb28_gc{padding:14px 12px!important}
.xb28_gc h3{font-size:.8rem}
.xb28_aw{padding:20px 16px 30px!important}
.xb28_ac{padding:20px!important}
.xb28_ac h1{font-size:1.2rem!important}
}
@media(max-width:480px){
body{font-size:14px}
.xb28_g3{grid-template-columns:1fr!important}
.xb28_hd{padding:30px 16px 14px!important}
.xb28_ft{font-size:.6rem}
.xb28_se{padding:24px 0}
.xb28_gc{padding:12px 10px!important}
.xb28_gc h3{font-size:.78rem}
.xb28_ac h1{font-size:1.1rem!important}
table{font-size:.72rem}
nav a,.xb28_nv a{padding:4px 8px!important;font-size:.78rem!important}
}