/* WW88 article pages */
*{box-sizing:border-box}
body{margin:0;font-family:Arial,"Helvetica Neue",Helvetica,sans-serif;background:#eef4fb;color:#1b2a41;font-size:15px;line-height:1.65}
a{color:#1565c0}
.pgh{background:#fff;box-shadow:0 2px 8px rgba(20,60,120,.08);position:sticky;top:0;z-index:20}
.pgh-in{max-width:1200px;margin:0 auto;padding:10px 16px;display:flex;align-items:center;gap:18px}
.pgh-logo img{height:44px;width:auto;display:block}
.pgh-nav{display:flex;gap:4px;flex:1;overflow-x:auto;scrollbar-width:none}
.pgh-nav a{white-space:nowrap;padding:8px 10px;border-radius:8px;color:#1b2a41;text-decoration:none;font-weight:700;font-size:13px;text-transform:uppercase}
.pgh-nav a:hover{background:#e3effb;color:#1565c0}
.pgh-btns{display:flex;gap:8px}
.pgh-btns a{padding:9px 16px;border-radius:8px;text-decoration:none;font-weight:700;font-size:14px;white-space:nowrap}
.pgh-login{color:#1565c0;border:1px solid #9ec4ee}
.pgh-reg{background:linear-gradient(180deg,#3d9be9,#1565c0);color:#fff}
.pgm{max-width:1200px;margin:0 auto;padding:18px 16px 40px}
.pg-crumbs{font-size:13px;color:#5a6b80;margin:0 0 12px}.pg-crumbs a{text-decoration:none;font-weight:700}
.pg-card{background:#fff;border-radius:14px;padding:26px 28px;box-shadow:0 2px 12px rgba(20,60,120,.06)}
.pg-card h1{font-size:28px;line-height:1.3;margin:0 0 14px;color:#0d47a1}
.pg-card h2{font-size:21px;margin:26px 0 8px;color:#1565c0}
.pg-card h3{font-size:16px;margin:16px 0 4px}
.pg-card p{margin:0 0 12px}
.pg-card ul,.pg-card ol{padding-left:22px;margin:0 0 12px}.pg-card li{margin-bottom:6px}
.pg-card .toc{background:#f3f7fc;border:1px solid #dbe7f5;border-radius:10px;padding:12px 18px;margin:0 0 10px}
.pg-card .toc h2{margin:0 0 6px;font-size:16px}.pg-card .toc ul{columns:2;margin:0}.pg-card .toc a{text-decoration:none}
.pg-card table{width:100%;border-collapse:collapse;margin:0 0 12px}.pg-card td,.pg-card th{border:1px solid #dbe7f5;padding:8px 10px}
.pg-card img{max-width:100%;height:auto;border-radius:10px}
.pg-btn{display:inline-block;margin-top:18px;padding:13px 32px;border-radius:30px;background:linear-gradient(180deg,#3d9be9,#1565c0);color:#fff!important;font-weight:700;text-decoration:none!important;font-size:16px}
.pgf{background:#0d2a52;color:#c9d8ea;padding:34px 16px 90px}
.pgf-in{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.pgf-col{display:flex;flex-direction:column;gap:6px}.pgf-col strong{color:#fff;margin-bottom:4px}.pgf-col a{color:#c9d8ea;text-decoration:none;font-size:14px}.pgf-col a:hover{color:#fff}
.pgf-copy{max-width:1200px;margin:24px auto 0;font-size:13px;opacity:.75}
.pgfix{position:fixed;left:0;right:0;bottom:0;display:none;background:#fff;border-top:1px solid #dbe7f5;padding:8px;gap:8px;z-index:30}
.pgfix a{flex:1;text-align:center;padding:11px 0;border-radius:8px;font-weight:700;text-decoration:none;font-size:14px;background:#e3effb;color:#1565c0}
.pgfix a:first-child{background:linear-gradient(180deg,#3d9be9,#1565c0);color:#fff}
@media (max-width:768px){.pgh-in{flex-wrap:wrap;gap:8px}.pgh-nav{order:3;width:100%}.pgh-btns{margin-left:auto}.pg-card{padding:18px 14px}.pg-card h1{font-size:22px}.pg-card .toc ul{columns:1}.pgf-in{grid-template-columns:1fr 1fr}.pgfix{display:flex}}

.pg-card ul.related{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:6px 16px;list-style:none;padding:0}.pg-card ul.related a{text-decoration:none;font-weight:700}

/* footer app trên trang bài */
.pgm{padding-bottom:40px}
.ww-mob footer{position:fixed!important}
@media (max-width:768px){body{padding-bottom:70px}}

.ww-web,.ww-mob{min-height:auto!important}