/* SEOUL – Thông báo nội bộ (ưu tiên điện thoại). */
.nb-hero{background:linear-gradient(135deg,var(--sh-dark) 0%,color-mix(in srgb,var(--sh-main) 75%,var(--sh-dark)) 100%);color:#fff;padding:34px 0 26px}
.nb-hero__t{font-family:var(--sh-font-h,inherit);text-transform:var(--sh-upper);font-size:clamp(1.7em,4.5vw,2.6em);font-weight:800;line-height:1.1;margin:0 0 8px;color:#fff}
.nb-hero__sub{margin:0 0 14px;opacity:.88;max-width:640px;font-size:.95em}
.nb-hero__stat{display:flex;flex-wrap:wrap;gap:8px;margin:0}
.nb-hero__stat span{padding:5px 12px;border-radius:999px;background:rgba(255,255,255,.14);font-weight:700;font-size:.82em}
.nb-hero__stat .nb-hero__new,.nb-hero__stat .nb-unread{background:var(--sh-accent);color:var(--sh-dark)}
.nb-unread[hidden]{display:none}

.nb-bar{position:sticky;top:var(--nb-top,0px);z-index:20;background:rgba(255,255,255,.96);backdrop-filter:blur(8px);border-bottom:1px solid #f0e6df;padding:10px 0}
.nb-search{display:flex;align-items:center;gap:8px;background:var(--sh-bg);border-radius:14px;padding:0 14px;border:1.5px solid transparent;transition:border-color .15s}
.nb-search:focus-within{border-color:var(--sh-main);background:#fff}
.nb-search svg{width:18px;height:18px;fill:currentColor;opacity:.5;flex:none}
.nb-search input{border:0;outline:0;background:none;font:inherit;font-size:16px;padding:12px 0;width:100%;min-width:0;color:inherit}
.nb-tabs{display:flex;gap:6px;overflow-x:auto;scrollbar-width:none;margin:8px -20px 0;padding:0 20px}
.nb-tabs::-webkit-scrollbar{display:none}
.nb-tab{flex:none;border:0;cursor:pointer;padding:8px 14px;border-radius:999px;background:var(--sh-bg);font:inherit;font-weight:700;font-size:.86em;color:var(--sh-text)}
.nb-tab span{opacity:.55;margin-left:2px}
.nb-tab.is-on{background:var(--sh-main);color:#fff}
.nb-tab.is-on span{opacity:.8}
.nb-tab[hidden]{display:none}
.nb-tab--unread{background:color-mix(in srgb,var(--sh-accent) 40%,#fff)}

.nb-body{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:28px;align-items:start;padding-top:22px;padding-bottom:48px}
.nb-h{font-size:.95em;font-weight:800;text-transform:uppercase;letter-spacing:.03em;color:var(--sh-main);margin:0 0 10px}
.nb-pins{margin-bottom:22px}
.nb-list{display:flex;flex-direction:column;gap:8px}
.nb-month{list-style:none;margin:14px 0 2px;font-size:.8em;font-weight:800;text-transform:uppercase;letter-spacing:.05em;opacity:.5}
.nb-month:first-child{margin-top:0}
.nb-item>a{display:flex;align-items:flex-start;gap:12px;padding:14px;border-radius:16px;background:#fff;border:1px solid #f1e7e1;box-shadow:0 2px 10px rgba(60,10,0,.04);transition:border-color .15s,box-shadow .15s,transform .1s;-webkit-tap-highlight-color:transparent}
.nb-item>a:hover{border-color:color-mix(in srgb,var(--sh-main) 35%,transparent);box-shadow:0 8px 22px rgba(60,10,0,.1)}
.nb-item>a:active{transform:scale(.99)}
.nb-item.is-pin>a{border:1.5px solid color-mix(in srgb,var(--sh-main) 45%,transparent);background:color-mix(in srgb,var(--sh-main) 4%,#fff)}
.nb-item__ic{flex:none;width:44px;height:44px;border-radius:12px;background:var(--sh-bg);display:flex;align-items:center;justify-content:center;font-size:1.35em;position:relative}
.nb-item.is-unread .nb-item__ic::after{content:"";position:absolute;right:-2px;top:-2px;width:11px;height:11px;border-radius:50%;background:var(--sh-main);box-shadow:0 0 0 2px #fff}
.nb-item__b{flex:1;min-width:0;display:flex;flex-direction:column;gap:3px}
.nb-item__meta{display:flex;flex-wrap:wrap;align-items:center;gap:6px;font-size:.76em;opacity:.85}
.nb-item__cat{font-weight:700;color:var(--sh-main)}
.nb-item__meta time{opacity:.7}
.nb-badge{padding:1px 8px;border-radius:999px;background:var(--sh-main);color:#fff;font-weight:800;font-size:.95em}
.nb-badge--upd{background:var(--sh-accent);color:var(--sh-dark)}
.nb-item__t{font-size:1em;line-height:1.35;font-weight:800;color:var(--sh-text)}
.nb-item.is-seen .nb-item__t{font-weight:700;opacity:.8}
.nb-item__ex{font-size:.86em;line-height:1.5;opacity:.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.nb-item__go{flex:none;align-self:center;font-size:1.6em;opacity:.3;line-height:1}
.nb-item[hidden],.nb-month[hidden]{display:none}
.nb-more-wrap{text-align:center;margin:18px 0 0}
.nb-more-wrap[hidden],.nb-empty[hidden]{display:none}
.nb-empty{text-align:center;padding:40px 10px;opacity:.7}

.nb-side{position:sticky;top:calc(var(--nb-top,0px) + 120px)}
.nb-links{display:flex;flex-direction:column;gap:8px}
.nb-links a{display:flex;align-items:center;gap:10px;padding:12px 14px;border-radius:14px;background:#fff;border:1px solid #f1e7e1;font-weight:700;font-size:.92em;transition:background .15s,color .15s}
.nb-links a:hover{background:var(--sh-main);color:#fff!important}
.nb-links span{flex:none;width:34px;height:34px;border-radius:10px;background:var(--sh-bg);display:flex;align-items:center;justify-content:center}
.nb-links b{margin-left:auto;opacity:.4;font-weight:400;font-size:1.3em}
.nb-help{margin:14px 0 0;padding:12px 14px;border-radius:14px;background:var(--sh-bg);font-size:.88em}
.nb-help a{color:var(--sh-main);font-weight:800}

@media (max-width:860px){
	.nb-body{grid-template-columns:1fr;gap:18px;padding-top:14px}
	.nb-side{position:static;order:-1}
	.nb-side .nb-h{display:none}
	.nb-links{flex-direction:row;overflow-x:auto;scrollbar-width:none;margin:0 -20px;padding:0 20px}
	.nb-links::-webkit-scrollbar{display:none}
	.nb-links a{flex:none;padding:10px 12px;font-size:.85em}
	.nb-links b{display:none}
	.nb-help{display:none}
	.nb-item>a{padding:12px}
	.nb-item__ic{width:40px;height:40px;font-size:1.2em}
}

/* màn hình mật khẩu */
.nb-lock{min-height:70vh;display:flex;align-items:center;justify-content:center;padding:30px 16px;background:var(--sh-bg)}
.nb-lock__card{width:100%;max-width:400px;background:#fff;border-radius:20px;padding:28px 22px;text-align:center;box-shadow:0 16px 40px rgba(60,10,0,.12)}
.nb-lock__ic{font-size:2.4em}
.nb-lock__card h1{font-size:1.4em;margin:8px 0;color:var(--sh-main)}
.nb-lock__card form{display:flex;flex-direction:column;gap:10px;margin-top:14px}
.nb-lock__card input{padding:14px;border-radius:12px;border:1.5px solid #e8dcd5;font:inherit;font-size:16px;text-align:center}
.nb-lock__card input:focus{outline:0;border-color:var(--sh-main)}
.nb-lock__err{color:#b32d2e;font-weight:700}
.nb-lock__help{font-size:.85em;opacity:.75;margin-top:14px}
.nb-lock__help a{color:var(--sh-main);font-weight:700}

/* ---------- Trang từng bài ---------- */
.nb-single{background:var(--sh-bg)}
.nb-art-wrap{max-width:820px!important;padding-top:18px;padding-bottom:90px}
.nb-crumb{margin-bottom:12px}
.nb-crumb a{font-weight:700;font-size:.9em;color:var(--sh-main)}
.nb-art{background:#fff;border-radius:20px;box-shadow:0 6px 24px rgba(60,10,0,.07);overflow:hidden}
.nb-art__head{padding:24px 26px 18px;border-bottom:1px solid #f3e9e3}
.nb-art__meta{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin:0 0 10px;font-size:.82em}
.nb-art__cat{padding:3px 10px;border-radius:999px;background:color-mix(in srgb,var(--sh-main) 10%,#fff);color:var(--sh-main);font-weight:800}
.nb-art__meta time,.nb-art__read{opacity:.6}
.nb-art__t{margin:0;font-size:clamp(1.35em,3.4vw,1.9em);line-height:1.3;font-weight:800;color:var(--sh-text);font-family:var(--sh-font,inherit);text-transform:none}
.nb-art__tools{display:flex;gap:8px;margin-top:14px}
.nb-art__tools button{border:1.5px solid #eadfd8;background:#fff;border-radius:999px;padding:8px 14px;font:inherit;font-weight:700;font-size:.85em;cursor:pointer;color:var(--sh-text)}
.nb-art__tools button:hover{border-color:var(--sh-main);color:var(--sh-main)}
.nb-art__body{padding:22px 26px 30px;font-size:17px;line-height:1.75;color:#2b2320;overflow-wrap:anywhere}
.nb-art__body>*:first-child{margin-top:0}
.nb-art__body h1,.nb-art__body h2,.nb-art__body h3,.nb-art__body h4{font-family:var(--sh-font,inherit);text-transform:none;line-height:1.35;color:var(--sh-text);margin:1.4em 0 .5em}
.nb-art__body h1{font-size:1.4em}.nb-art__body h2{font-size:1.25em}.nb-art__body h3{font-size:1.1em}.nb-art__body h4{font-size:1em}
.nb-art__body p{margin:0 0 1em}
.nb-art__body ul,.nb-art__body ol{padding-left:1.3em;margin:0 0 1em}
.nb-art__body li{margin:.3em 0}
.nb-art__body a{color:var(--sh-main);font-weight:700;text-decoration:underline;text-underline-offset:3px}
.nb-art__body img{max-width:100%!important;height:auto!important;border-radius:12px;cursor:zoom-in;box-shadow:0 4px 16px rgba(0,0,0,.08);margin:.4em 0}
.nb-art__body figure{margin:1em 0}
.nb-art__body figcaption{font-size:.85em;opacity:.65;text-align:center;margin-top:4px}
.nb-art__body blockquote{margin:1em 0;padding:12px 16px;border-left:4px solid var(--sh-accent);background:var(--sh-bg);border-radius:0 12px 12px 0}
.nb-art__body table{width:100%;border-collapse:collapse;font-size:.92em}
.nb-art__body th,.nb-art__body td{border:1px solid #eee2db;padding:8px 10px;text-align:left;vertical-align:top}
.nb-art__body th{background:var(--sh-bg)}
.nb-tablewrap{overflow-x:auto;margin:0 0 1em;-webkit-overflow-scrolling:touch}
.nb-art__body iframe,.nb-art__body video{max-width:100%;border-radius:12px}
.nb-art__body .nb-step{display:block;margin:1.4em 0 .5em;padding:10px 14px;border-radius:12px;background:color-mix(in srgb,var(--sh-main) 7%,#fff);border-left:4px solid var(--sh-main);font-weight:800}
.nb-art__body a.nb-file{display:flex;align-items:center;gap:12px;padding:14px 16px;margin:.6em 0;border-radius:14px;border:1.5px solid #eadfd8;background:#fffaf6;text-decoration:none;color:var(--sh-text)}
.nb-art__body a.nb-file::before{content:"📄";font-size:1.6em}
.nb-art__body a.nb-file::after{content:"Mở / tải về ›";margin-left:auto;font-size:.8em;color:var(--sh-main);white-space:nowrap}
.nb-art__body a.nb-file:hover{border-color:var(--sh-main)}
.nb-pn{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:16px 0}
.nb-pn__a{display:flex;flex-direction:column;gap:4px;padding:14px 16px;border-radius:16px;background:#fff;border:1px solid #f1e7e1}
.nb-pn__a:hover{border-color:var(--sh-main)}
.nb-pn__a small{font-weight:700;color:var(--sh-main)}
.nb-pn__a strong{font-size:.92em;line-height:1.35;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.nb-pn__a--next{text-align:right}
.nb-rel{margin-top:22px}
.nb-rel__all{text-align:center;margin:16px 0 0}
.nb-single .nb-help{margin-top:18px;text-align:center}
.nb-dock{display:none}
.nb-toast{position:fixed;left:50%;bottom:84px;transform:translateX(-50%);background:#222;color:#fff;padding:10px 16px;border-radius:999px;font-weight:700;font-size:.9em;z-index:100;opacity:0;transition:opacity .2s;pointer-events:none}
.nb-toast.is-on{opacity:1}
@media (max-width:700px){
	.nb-art-wrap{padding-left:10px;padding-right:10px}
	.nb-crumb{padding:0 6px}
	.nb-art{border-radius:16px}
	.nb-art__head{padding:18px 16px 14px}
	.nb-art__body{padding:16px 16px 24px;font-size:16.5px}
	.nb-art__tools .nb-print{display:none}
	.nb-pn{grid-template-columns:1fr}
	.nb-pn__a--next{text-align:left}
	.nb-dock{display:flex;position:fixed;left:10px;right:10px;bottom:calc(10px + env(safe-area-inset-bottom));z-index:60;background:#fff;border-radius:18px;box-shadow:0 8px 30px rgba(0,0,0,.18);overflow:hidden}
	.nb-dock a,.nb-dock button{flex:1;display:flex;flex-direction:column;align-items:center;gap:2px;padding:9px 4px;border:0;background:none;font:inherit;font-size:1.15em;font-weight:800;color:var(--sh-main)!important;cursor:pointer}
	.nb-dock span{font-size:.62em;font-weight:700;color:var(--sh-text)}
	.nb-dock>*+*{border-left:1px solid #f1e7e1}
}
@media print{.sh-head,.sh-foot,.nb-crumb,.nb-art__tools,.nb-pn,.nb-rel,.nb-dock,.nb-help{display:none!important}.nb-art{box-shadow:none}.nb-single{background:#fff}}

/* Câu hỏi thường gặp */
.nb-faq{margin-top:26px;padding-top:6px}
.nb-faq[hidden]{display:none}
.nb-faq__sub{margin:-4px 0 12px;font-size:.88em;opacity:.65}
.nb-faq__item{background:#fff;border:1px solid #f1e7e1;border-radius:14px;margin-bottom:8px;transition:border-color .15s}
.nb-faq__item[hidden]{display:none}
.nb-faq__item[open]{border-color:color-mix(in srgb,var(--sh-main) 35%,transparent);box-shadow:0 6px 18px rgba(60,10,0,.06)}
.nb-faq__item summary{list-style:none;cursor:pointer;padding:15px 46px 15px 16px;font-weight:800;line-height:1.4;position:relative;-webkit-tap-highlight-color:transparent}
.nb-faq__item summary::-webkit-details-marker{display:none}
.nb-faq__item summary::after{content:"+";position:absolute;right:16px;top:50%;transform:translateY(-50%);width:24px;height:24px;border-radius:50%;background:var(--sh-bg);color:var(--sh-main);display:flex;align-items:center;justify-content:center;font-size:1.1em;transition:transform .2s}
.nb-faq__item[open] summary::after{content:"–"}
.nb-faq__item summary:focus{outline:none}
.nb-faq__item summary:focus-visible{outline:2px solid var(--sh-main);outline-offset:2px;border-radius:14px}
.nb-faq__a{padding:0 16px 16px;font-size:.94em;line-height:1.65}
.nb-faq__a p{margin:0 0 8px}
.nb-faq__a a{color:var(--sh-main);font-weight:700}
.nb-faq__go{display:inline-flex;margin-top:4px;padding:9px 14px;border-radius:12px;background:color-mix(in srgb,var(--sh-main) 8%,#fff);text-decoration:none!important;font-size:.9em}
.nb-faq__go:hover{background:var(--sh-main);color:#fff!important}
.nb-tab--faq{background:color-mix(in srgb,var(--sh-accent) 30%,#fff)}