/* Trang Huong dan (helpers/guide/guide.php). Tu chua, khong dung bootstrap. */
*{box-sizing:border-box}
body{margin:0;background:#f7f8fb;color:#1f2a44;font:17px/1.65 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif}
a{color:var(--g-accent,#4f46e5)}
img{max-width:100%;height:auto}
.g-wrap{max-width:780px;margin:0 auto;padding:0 16px}
.g-top{background:#fff;box-shadow:0 1px 4px rgba(0,0,0,.06)}
.g-top-in{display:flex;align-items:center;gap:16px;min-height:56px;max-width:1040px}
.g-logo img{display:block}
.g-nav{display:flex;gap:14px;overflow-x:auto;white-space:nowrap;font-size:15px;scrollbar-width:none}
.g-nav::-webkit-scrollbar{display:none}
.g-nav a{color:#1f2a44;text-decoration:none;font-weight:600}
.g-crumb{font-size:13px;color:#6b7690;margin:16px 0 6px}
.g-crumb a{color:#6b7690}
h1{font-size:30px;line-height:1.25;margin:6px 0 8px;letter-spacing:-.01em}
h2{font-size:23px;line-height:1.3;margin:34px 0 10px}
h3{font-size:19px;margin:24px 0 8px}
.g-meta{font-size:14px;color:#6b7690;margin:0 0 18px}
.g-lead{font-size:18px;color:#4a5571}
.g-answer{background:#fff;border-left:4px solid var(--g-accent,#4f46e5);border-radius:10px;padding:14px 16px;margin:0 0 18px;box-shadow:0 1px 6px rgba(31,42,68,.06)}
.g-data{background:#fff;border:1px solid #e3e7ef;border-radius:14px;padding:14px 16px;margin:18px 0}
.g-data-t{font-weight:700;font-size:15px;margin-bottom:8px;color:var(--g-accent,#4f46e5)}
.g-data-g{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:10px}
.g-data-g div{background:#f7f8fb;border-radius:10px;padding:10px}
.g-data-g b{display:block;font-size:22px;line-height:1.2}
.g-data-g span{font-size:14px;color:#4a5571;line-height:1.35;display:block;margin-top:2px}
.g-src{font-size:12.5px;color:#7a8499;margin:10px 0 0}
.g-fig{margin:20px 0}
.g-fig img{display:block;border-radius:12px;border:1px solid #e3e7ef;background:#fff;margin:0 auto}
.g-fig figcaption{font-size:14px;color:#6b7690;text-align:center;margin-top:6px}
.g-tool{background:#fff;border-radius:16px;box-shadow:0 2px 14px rgba(31,42,68,.09);padding:16px;margin:22px 0}
.g-tool h3{margin-top:0}
.g-tool label{display:block;font-size:15px;font-weight:600;margin:8px 0 4px}
.g-tool textarea,.g-tool input[type=text],.g-tool input[type=number],.g-tool select{width:100%;font:inherit;font-size:16px;border:1px solid #cfd6e3;border-radius:10px;padding:9px 11px;background:#fff}
.g-tool textarea{min-height:120px;resize:vertical}
.g-row{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.g-row>*{flex:1 1 140px}
.g-btn{display:inline-block;background:var(--g-accent,#4f46e5);color:#fff!important;text-decoration:none;font-weight:700;border:0;border-radius:10px;padding:10px 16px;font-size:16px;cursor:pointer;line-height:1.3}
.g-btn:hover{filter:brightness(1.08)}
.g-btn-ghost{background:#fff;color:var(--g-accent,#4f46e5)!important;border:1.5px solid var(--g-accent,#4f46e5)}
.g-out{margin-top:12px}
.g-note{font-size:14px;color:#6b7690}
.g-ok{color:#047857}.g-warn{color:#b45309}.g-bad{color:#b91c1c}
table.g-tb{width:100%;border-collapse:collapse;font-size:15px;margin:12px 0;background:#fff;border-radius:10px;overflow:hidden}
.g-tb th,.g-tb td{border-bottom:1px solid #e9edf3;padding:8px 10px;text-align:left;vertical-align:top}
.g-tb th{background:#f1f4f9;font-size:14px}
.g-tbw{overflow-x:auto;-webkit-overflow-scrolling:touch}
.g-steps{padding-left:22px}.g-steps li{margin-bottom:8px}
.g-faq details{background:#fff;border-radius:10px;padding:10px 14px;margin-bottom:8px;box-shadow:0 1px 4px rgba(0,0,0,.05)}
.g-faq summary{font-weight:600;cursor:pointer}
.g-faq details p{margin:8px 0 0}
.g-ad{margin:22px 0;min-height:100px}
.g-xl{display:flex;gap:12px;align-items:center;background:#fff7ed;border:1px solid #fed7aa;border-radius:14px;padding:14px;margin:26px 0;flex-wrap:wrap}
.g-xl img{flex:0 0 auto}
.g-xl div{flex:1 1 240px}
.g-xl p{margin:4px 0 0;font-size:15px;color:#4a5571}
.g-xl .g-btn{background:#ea580c}
.g-more{margin-top:36px}
.g-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:12px}
.g-card{display:block;background:#fff;border:1px solid #e3e7ef;border-radius:14px;padding:14px;text-decoration:none;color:#1f2a44}
.g-card:hover{border-color:var(--g-accent,#4f46e5)}
.g-card b{display:block;line-height:1.35;margin:6px 0 4px}
.g-card-d{font-size:14px;color:#6b7690;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.g-tag{font-size:12px;font-weight:700;color:var(--c);background:color-mix(in srgb,var(--c) 12%,#fff);border-radius:999px;padding:2px 8px}
.g-hub-sec h2 a{color:#1f2a44;text-decoration:none}
.g-foot{border-top:1px solid #e3e7ef;margin-top:40px;padding:18px 0 30px;font-size:14px;color:#6b7690;background:#fff}
.g-bars{display:flex;align-items:flex-end;gap:4px;height:140px;margin:10px 0 4px;border-bottom:1px solid #cfd6e3}
.g-bars div{flex:1;background:var(--g-accent,#4f46e5);border-radius:4px 4px 0 0;position:relative;min-width:6px}
.g-bars div span{position:absolute;top:-18px;left:50%;transform:translateX(-50%);font-size:11px;color:#4a5571;white-space:nowrap}
.g-bars-l{display:flex;gap:4px;font-size:11px;color:#6b7690}.g-bars-l span{flex:1;text-align:center;min-width:6px}
.g-sheet{background:#eceff4;border-radius:10px;padding:10px;overflow:auto;max-height:520px}
.g-sheet .pg{background:#fff;margin:0 auto;box-shadow:0 1px 6px rgba(0,0,0,.15);position:relative}
.g-sheet .lb{position:absolute;outline:1px dashed #b8c0cc;display:flex;flex-direction:column;align-items:center;justify-content:center;overflow:hidden}
.g-sheet .lb svg{max-width:96%;height:auto}
@media(max-width:600px){body{font-size:16px}h1{font-size:25px}h2{font-size:20px}.g-ad{min-height:100vw}}