:root{
  --ink:#0F2A47; --ink-deep:#0A1D33; --ink-mid:#16457A;
  --amber:#EF9F27; --amber-deep:#BA7517; --amber-soft:#FDF2DF;
  --teal:#1D9E75; --teal-soft:#E4F4EE; --teal-deep:#0F6E56;
  --sand:#F6F4EF; --paper:#FFFFFF;
  --line:#E4E1D9; --line-soft:#EFEDE7;
  --tx:#152234; --tx-2:#5C6877; --tx-3:#8B94A0;
  --r:10px; --r-lg:16px; --wrap:1340px; --gut:24px;
  --grad-ink:linear-gradient(135deg,#08182A 0%,#123A5F 52%,#1B5680 100%);
  --grad-ink-soft:linear-gradient(140deg,#0F2A47 0%,#16456F 100%);
  --grad-amber:linear-gradient(135deg,#F8B443 0%,#EF9F27 48%,#DB8214 100%);
  --grad-amber-hov:linear-gradient(135deg,#FCC259 0%,#F4A833 48%,#E4901D 100%);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:'Plus Jakarta Sans',system-ui,sans-serif;background:var(--paper);color:var(--tx);font-size:16px;line-height:1.7;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:none;background:none;color:inherit;text-align:left}
:focus-visible{outline:2.5px solid var(--amber);outline-offset:3px;border-radius:4px}
.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 var(--gut)}
.skip{position:absolute;left:-9999px;background:var(--ink);color:#fff;padding:12px 20px;z-index:200}
.skip:focus{left:0;top:0}
h1,h2,h3{line-height:1.18;letter-spacing:-.028em;font-weight:600}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;padding:14px 26px;border-radius:var(--r);font-weight:600;font-size:.95rem;transition:transform .15s,background .2s,border-color .2s}
.btn:active{transform:translateY(1px)}
.btn-amber{background:var(--grad-amber);color:#3A2402;box-shadow:0 1px 0 var(--amber-deep)}
.btn-amber:hover{background:var(--grad-amber-hov)}
.btn-ink{background:var(--grad-ink-soft);color:#fff}.btn-ink:hover{background:linear-gradient(140deg,#16456F 0%,#1D5B8C 100%)}
.btn-line{border:1.5px solid var(--line);color:var(--tx);background:var(--paper)}
.btn-line:hover{border-color:var(--ink);background:var(--sand)}
.btn-sm{padding:10px 18px;font-size:.88rem}

.announce{background:var(--ink-deep);color:#D9E3EF;font-size:.83rem;padding:11px 0;overflow:hidden}
.mq{display:flex;width:max-content;animation:mq 42s linear infinite}
.announce:hover .mq{animation-play-state:paused}
.mq-set{display:flex;align-items:center;gap:34px;padding-right:34px;white-space:nowrap}
.mq b{color:var(--amber);font-weight:600}.mq i{color:var(--amber);font-style:normal;opacity:.7}
.mq a{text-decoration:underline;text-underline-offset:3px}
@keyframes mq{from{transform:translateX(0)}to{transform:translateX(-50%)}}

.hdr{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.95);backdrop-filter:blur(10px);border-bottom:1px solid var(--line-soft)}
.hdr .wrap{display:flex;align-items:center;gap:18px;height:82px}
.logo{display:flex;align-items:center;gap:11px;font-weight:700;font-size:1.32rem;letter-spacing:-.04em;color:var(--ink);flex:none}
.logo-mark{width:36px;height:36px;border-radius:9px;background:var(--grad-ink-soft);display:grid;place-items:center;position:relative;overflow:hidden;flex:none}
.logo-mark::after{content:"";position:absolute;inset:auto 0 0 0;height:11px;background:var(--grad-amber)}
.logo-mark span{color:#fff;font-size:1.05rem;font-weight:700;z-index:1;letter-spacing:-.05em;line-height:1}
.logo em{font-style:normal;font-weight:400;color:var(--tx-2);font-size:1.02rem}
.nav{display:flex;align-items:center;gap:6px;margin:0 auto}
.nav a{padding:10px 15px;border-radius:8px;font-size:.97rem;font-weight:500;white-space:nowrap}
.nav a:hover{background:var(--sand)}
.nav a.on{background:var(--sand);font-weight:600}
.hdr-actions{display:flex;align-items:center;gap:8px;flex:none}
.icon-btn{width:42px;height:42px;border-radius:9px;display:grid;place-items:center;color:var(--tx-2);position:relative}
.icon-btn:hover{background:var(--sand);color:var(--ink)}
.hdr-login{font-size:.97rem;font-weight:500;padding:10px 13px;border-radius:8px}
.hdr-login:hover{background:var(--sand)}
.burger{display:none}
@media(max-width:1120px){.nav,.hdr-login{display:none}.burger{display:grid;place-items:center;width:40px;height:40px;border-radius:9px}}
.mnav{display:none;border-top:1px solid var(--line-soft);background:var(--paper);padding:10px 0 18px}
.mnav.open{display:block}
.mnav a{display:block;padding:12px 20px;font-weight:500;border-bottom:1px solid var(--line-soft)}

/* ===== đầu trang blog ===== */
.bhead{background:var(--sand);border-bottom:1px solid var(--line);padding:56px 0 0}
.bhead .eyebrow{font-size:.72rem;font-weight:600;letter-spacing:.16em;text-transform:uppercase;color:var(--amber-deep);display:flex;align-items:center;gap:10px;margin-bottom:14px}
.bhead .eyebrow::before{content:"";width:22px;height:2px;background:var(--grad-amber)}
.bhead h1{font-size:clamp(1.9rem,3.8vw,2.8rem);letter-spacing:-.036em}
.bhead p{color:var(--tx-2);margin-top:14px;max-width:60ch;line-height:1.72}
.tagrow{display:flex;gap:8px;overflow-x:auto;padding:26px 0 0;margin-top:8px;scrollbar-width:none}
.tagrow::-webkit-scrollbar{display:none}
.tg{padding:10px 17px;border:1px solid var(--line);border-radius:24px;background:var(--paper);font-size:.9rem;font-weight:500;color:var(--tx-2);white-space:nowrap;transition:border-color .2s,background .2s}
.tg:hover{border-color:var(--ink);color:var(--tx)}
.tg[aria-pressed="true"]{background:var(--grad-ink-soft);border-color:#16456F;color:#fff;font-weight:600}
.tg .n{font-size:.78rem;opacity:.65;margin-left:6px;font-variant-numeric:tabular-nums}
.bhead .tagrow{padding-bottom:22px;border-bottom:0}

/* ===== bài nổi bật ===== */
.lead{padding:44px 0 0}
.lead a{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);gap:36px;align-items:center;background:var(--paper);border:1px solid var(--line);border-radius:20px;overflow:hidden;transition:border-color .2s,box-shadow .25s}
.lead a:hover{border-color:#C9D2DC;box-shadow:0 18px 40px -26px rgba(15,42,71,.45)}
.lead .im{aspect-ratio:16/10;position:relative;display:grid;place-items:center;background:var(--grad-ink);padding:26px}
.lead .im svg{position:absolute;inset:0;width:100%;height:100%;opacity:.15}
.lead .im span{position:relative;color:#fff;font-weight:600;font-size:1.15rem;text-align:center;line-height:1.35;max-width:18ch;letter-spacing:-.025em}
.lead .tx{padding:32px 40px 32px 0}
.lead .pin{display:inline-flex;align-items:center;gap:7px;background:var(--amber-soft);color:#6B5322;font-size:.74rem;font-weight:700;letter-spacing:.05em;text-transform:uppercase;padding:5px 11px;border-radius:5px;margin-bottom:14px}
.lead h2{font-size:clamp(1.35rem,2.4vw,1.85rem);letter-spacing:-.032em;line-height:1.24}
.lead .ex{color:var(--tx-2);margin-top:14px;font-size:.98rem;line-height:1.72;max-width:52ch}
.lead .mt{display:flex;align-items:center;gap:14px;margin-top:20px;font-size:.83rem;color:var(--tx-3)}
.lead .mt .dot{width:3px;height:3px;border-radius:50%;background:var(--tx-3)}
@media(max-width:900px){.lead a{grid-template-columns:1fr;gap:0}.lead .tx{padding:26px 24px 30px}}

/* ===== lưới bài ===== */
.list{padding:44px 0 84px}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:30px 26px}
.pc{display:flex;flex-direction:column}
.pc .im{aspect-ratio:16/9;border-radius:13px;position:relative;display:grid;place-items:center;overflow:hidden;padding:20px;margin-bottom:15px}
.pc .im svg{position:absolute;inset:0;width:100%;height:100%;opacity:.15}
.pc .im span{position:relative;color:#fff;font-weight:600;font-size:1rem;text-align:center;line-height:1.35;max-width:17ch;letter-spacing:-.02em}
.pc:hover .im{box-shadow:0 14px 30px -20px rgba(15,42,71,.5)}
.pc .tag{font-size:.73rem;font-weight:700;color:var(--amber-deep);letter-spacing:.07em;text-transform:uppercase}
.pc h3{font-size:1.09rem;margin-top:7px;line-height:1.36}
.pc:hover h3{color:var(--ink-mid)}
.pc .ex{font-size:.88rem;color:var(--tx-2);margin-top:9px;line-height:1.65;flex:1}
.pc .mt{display:flex;align-items:center;gap:11px;margin-top:14px;font-size:.79rem;color:var(--tx-3)}
.pc .mt .dot{width:3px;height:3px;border-radius:50%;background:var(--tx-3)}

.pager{display:flex;align-items:center;justify-content:center;gap:8px;margin-top:52px}
.pager a,.pager span{min-width:42px;height:42px;display:grid;place-items:center;border:1px solid var(--line);border-radius:10px;font-size:.93rem;font-weight:500;color:var(--tx-2);font-variant-numeric:tabular-nums}
.pager a:hover{border-color:var(--ink);color:var(--tx);background:var(--sand)}
.pager .cur{background:var(--ink);border-color:var(--ink);color:#fff;font-weight:600}
.pager .gap{border:none}

/* ===== đăng ký nhận bài ===== */
.sub{background:var(--grad-ink);color:#fff}
.sub .wrap{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,440px);gap:44px;align-items:center;padding:56px var(--gut)}
.sub h2{color:#fff;font-size:1.65rem}
.sub p{color:#BFCEDE;margin-top:12px;max-width:52ch;line-height:1.72}
.subform{display:flex;gap:10px;flex-wrap:wrap}
.subform input{flex:1;min-width:200px;padding:15px 17px;border:1px solid rgba(255,255,255,.2);border-radius:var(--r);font:inherit;font-size:.95rem;background:rgba(255,255,255,.08);color:#fff}
.subform input::placeholder{color:#8FA2B7}
.subform input:focus{outline:none;border-color:var(--amber);background:rgba(255,255,255,.13)}
.sub small{display:block;color:#8FA2B7;font-size:.8rem;margin-top:12px}
@media(max-width:860px){.sub .wrap{grid-template-columns:1fr;gap:26px;padding:44px var(--gut)}}

.ft{background:linear-gradient(180deg,#0A1D33 0%,#0C2440 100%);color:#B7C5D5;font-size:.9rem;padding:60px 0 0}
.ft-top{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:42px;padding-bottom:44px}
.ft .logo{color:#fff;margin-bottom:16px}.ft .logo em{color:#8FA2B7}
.ft-about{line-height:1.75;max-width:38ch}
.ft h4{color:#fff;font-size:.9rem;font-weight:600;margin-bottom:14px}
.ft ul{list-style:none;display:flex;flex-direction:column;gap:9px}
.ft a:hover{color:var(--amber)}
.ft-legal{border-top:1px solid rgba(255,255,255,.11);padding:24px 0 40px;font-size:.8rem;line-height:1.8;color:#8FA2B7}
.ft-legal .moit{display:inline-flex;align-items:center;gap:8px;margin-top:14px;padding:7px 12px;border:1px solid rgba(255,255,255,.18);border-radius:6px;font-size:.75rem}
@media(max-width:860px){.ft-top{grid-template-columns:1fr 1fr;gap:28px}}
@media(max-width:520px){.ft-top{grid-template-columns:1fr}}
@media(prefers-reduced-motion:reduce){.mq{width:100%;justify-content:center}*{animation:none!important;transition:none!important;scroll-behavior:auto!important}}