/* Tech Blog (/blog): chọn theo ngành, chọn theo loại, dòng tin có nhãn. Dùng biến màu của theme. */
.oc-bl .oc-bl-sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
.oc-bl-hero{padding:8px 0 0}
.oc-bl-hero-in{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,.8fr);gap:24px 48px;align-items:center}
#content-wrapper.oc-bl p.oc-bl-lead{margin:0;max-width:640px;font-size:clamp(17px,1.5vw,20px);line-height:1.65;color:#2C3B4A}
.oc-bl-search{position:relative;display:flex;align-items:center;height:56px;border:1.5px solid #C5D5E6;border-radius:14px;background:#fff;box-shadow:0 8px 24px -16px rgba(0,97,174,.45);transition:border-color .2s,box-shadow .2s}
.oc-bl-search:focus-within{border-color:#0061AE;box-shadow:0 0 0 4px rgba(0,97,174,.14)}
.oc-2026 #content-wrapper.oc-bl .oc-bl-search input[type=search]{flex:1;min-width:0;height:100%;min-height:0;padding:0 18px;border:0!important;outline:0!important;box-shadow:none!important;background:transparent!important;font-size:16px;border-radius:14px 0 0 14px}
.oc-bl-search button{flex:none;width:52px;height:100%;border:0;border-radius:0 12px 12px 0;background:transparent;color:#0061AE;cursor:pointer}
.oc-bl-search button:hover{background:#EAF2FA}

.oc-bl-tracks{padding-top:40px}
.oc-2026 #content-wrapper.oc-bl h2.oc-bl-h{margin:0 0 20px!important;font-size:clamp(24px,2.4vw,32px)!important;line-height:1.15!important;font-weight:800!important;letter-spacing:-.02em;color:#000;text-align:left}
.oc-2026 #content-wrapper.oc-bl h2.oc-bl-h::before,.oc-2026 #content-wrapper.oc-bl h2.oc-bl-h::after{display:none!important}
.oc-bl-tgrid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.oc-bl-track{--c:#0061AE;position:relative;display:flex;flex-direction:column;gap:10px;padding:28px 28px 24px;border:1px solid #DCE6F0;border-top:5px solid var(--c);border-radius:16px;background:#fff;box-shadow:0 18px 40px -30px rgba(0,61,115,.4);transition:transform .25s,box-shadow .25s}
.oc-bl-track:hover{transform:translateY(-3px);box-shadow:0 26px 48px -30px rgba(0,61,115,.55)}
.oc-bl-track-ck{--c:#297A2D}
.oc-bl-ti{display:flex;align-items:center;justify-content:center;width:48px;height:48px;border-radius:12px;color:var(--c);background:color-mix(in srgb,var(--c) 10%,#fff);border:1px solid color-mix(in srgb,var(--c) 22%,#fff)}
.oc-2026 #content-wrapper.oc-bl .oc-bl-track h3{margin:6px 0 0!important;font-size:26px!important;line-height:1.2!important;font-weight:800!important;letter-spacing:-.02em;text-align:left}
.oc-bl-track h3 a{color:#000}.oc-bl-track h3 a:hover{color:var(--c)}
.oc-bl-for{font-size:13px;font-weight:800;letter-spacing:.04em;text-transform:uppercase;color:var(--c)}
#content-wrapper.oc-bl .oc-bl-track p{margin:0;font-size:15.5px;line-height:1.65;color:#3A4A5A}
.oc-bl-subs{display:flex;flex-wrap:wrap;gap:8px;margin-top:6px}
.oc-bl-subs a{display:inline-flex;align-items:center;gap:8px;min-height:40px;padding:0 14px;border:1px solid #D4E0EC;border-radius:999px;background:#F6F9FC;color:#0B0D10;font-weight:600;font-size:14.5px;transition:border-color .2s,background .2s}
.oc-bl-subs a:hover{border-color:var(--c);background:#fff}
.oc-bl-subs em,.oc-bl-types em{font-style:normal;font-size:12.5px;font-weight:700;color:#5A6B7D}
.oc-bl-all{margin-top:auto;padding-top:8px;font-weight:800;color:var(--c)}
.oc-bl-all:hover{text-decoration:underline}

.oc-bl-types{display:flex;flex-wrap:wrap;align-items:stretch;gap:10px;margin-top:16px}
.oc-bl-tk{flex:0 0 100%;font-size:13px;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:#5A6B7D}
.oc-bl-types a{display:flex;flex-direction:column;gap:2px;min-width:200px;flex:1 1 200px;padding:14px 18px;border:1px solid #DCE6F0;border-radius:12px;background:#fff;color:#0B0D10;transition:border-color .2s,transform .2s;position:relative}
.oc-bl-types a:hover{border-color:#0061AE;transform:translateY(-2px)}
.oc-bl-types b{font-size:16px;font-weight:800}
.oc-bl-types small{font-size:13px;color:#5A6B7D}
.oc-bl-types em{position:absolute;right:16px;top:14px}

.oc-bl-feed{padding-top:48px;padding-bottom:72px}
.oc-bl-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.oc-bl-card{display:flex;flex-direction:column;border:1px solid #E1E8F0;border-radius:14px;background:#fff;overflow:hidden;transition:transform .25s,box-shadow .25s,border-color .25s}
.oc-bl-card:hover{transform:translateY(-3px);border-color:#C5D5E6;box-shadow:0 24px 44px -32px rgba(0,61,115,.55)}
.oc-bl-img{display:block;aspect-ratio:16/9;background:#EEF3F8;overflow:hidden}
.oc-bl-img img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .5s}
.oc-bl-card:hover .oc-bl-img img{transform:scale(1.03)}
.oc-bl-noimg{display:block;width:100%;height:100%;background:linear-gradient(135deg,#EAF2FA,#EAF5EB)}
.oc-bl-body{display:flex;flex-direction:column;gap:8px;padding:18px 20px 20px;flex:1}
.oc-bl-badges{display:flex;flex-wrap:wrap;gap:6px}
.oc-bl-b{display:inline-block;padding:3px 10px;border-radius:999px;font-size:12px;font-weight:800;letter-spacing:.02em;background:#EEF3F8;color:#2B3A4A}
.oc-bl-b-xd{background:#E3F0FB;color:#00477F}
.oc-bl-b-ck{background:#E5F3E6;color:#1F6122}
.oc-bl-b-lo{background:#FFF1D6;color:#7A4E00}
.oc-2026 #content-wrapper.oc-bl .oc-bl-card h3{margin:0!important;font-size:18px!important;line-height:1.4!important;font-weight:800!important;text-align:left;letter-spacing:-.01em}
.oc-bl-card h3 a{color:#0B0D10}.oc-bl-card h3 a:hover{color:#0061AE}
#content-wrapper.oc-bl .oc-bl-card p{margin:0;font-size:14.5px;line-height:1.6;color:#3A4A5A;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.oc-bl-meta{margin-top:auto;padding-top:6px;font-size:13px;color:#6B7686}
.oc-bl-pg{display:flex;justify-content:center;gap:6px;margin-top:36px}
.oc-bl-pg .page-numbers{display:inline-flex;align-items:center;justify-content:center;min-width:44px;height:44px;padding:0 12px;border:1px solid #D4E0EC;border-radius:10px;color:#0B0D10;font-weight:700}
.oc-bl-pg .page-numbers.current{background:#000;border-color:#000;color:#fff}
.oc-bl-pg a.page-numbers:hover{border-color:#0061AE;color:#0061AE}
.oc-bl-pg .dots{border:0}

@media (max-width:1100px){.oc-bl-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.oc-bl-hero-in{grid-template-columns:1fr}}
@media (max-width:760px){.oc-bl-tgrid,.oc-bl-grid{grid-template-columns:1fr}.oc-bl-track{padding:22px 20px}.oc-bl-feed{padding-bottom:48px}.oc-bl-types a{flex:1 1 100%}}
@media (prefers-reduced-motion:reduce){.oc-bl-card,.oc-bl-track,.oc-bl-types a,.oc-bl-img img{transition:none}}

/* Chuyên mục */
.oc-bl-cat .oc-bl-hero-in{align-items:end}
#content-wrapper.oc-bl p.oc-bl-lead b{color:#0061AE}
.oc-bl-count{display:inline-block;margin-top:12px;font-size:14px;font-weight:700;color:#5A6B7D}
.oc-bl-cats{display:flex;flex-wrap:wrap;gap:8px;padding-top:28px}
.oc-bl-chip{display:inline-flex;align-items:center;gap:8px;min-height:44px;padding:0 18px;border:1.5px solid #CBD7E3;border-radius:999px;background:#fff;color:#1A2733;font-weight:600;font-size:15px;transition:border-color .2s,color .2s}
.oc-bl-chip em{font-style:normal;font-size:12.5px;font-weight:700;color:#5A6B7D}
.oc-bl-chip:hover{border-color:#0061AE;color:#0061AE}
.oc-bl-chip.is-on{background:#000;border-color:#000;color:#fff}.oc-bl-chip.is-on em{color:#cfd8e3}
.oc-bl-back{margin-left:auto;border-style:dashed}
.oc-bl-cat .oc-bl-feed{padding-top:28px}
.oc-bl-cta{display:flex;flex-wrap:wrap;align-items:center;gap:14px 16px;margin-top:48px;padding:24px 28px;border-radius:16px;color:#fff;background:linear-gradient(120deg,#003E73,#0061AE 60%,#107072)}
.oc-bl-cta>div{flex:1 1 280px}
.oc-bl-cta b{display:block;font-size:20px}
.oc-bl-cta span{font-size:15px;color:rgba(255,255,255,.85)}
.oc-bl-cta .oc-btn-line{border-color:rgba(255,255,255,.7);color:#fff}
@media (max-width:760px){.oc-bl-back{margin-left:0}}

/* Trang bài viết */
.oc-ar .content-title{background:#fff}
.oc-ar .content-title .breadcrumb{margin:0;padding:18px 0 0;background:none}
.oc-ar-wrap{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:48px;align-items:start;padding-top:12px;padding-bottom:40px}
.oc-ar-main{min-width:0;max-width:820px}
.oc-ar-head{padding:8px 0 20px;border-bottom:1px solid #E3ECF5;margin-bottom:28px}
.oc-ar-head .oc-bl-badges{margin-bottom:14px}
.oc-2026 .oc-ar h1.title{margin:0!important;padding:0!important;font-size:clamp(28px,3.4vw,44px)!important;line-height:1.15!important;font-weight:800!important;letter-spacing:-.025em;color:#000;text-align:left;text-wrap:balance}
.oc-ar h1.title::before,.oc-ar h1.title::after{display:none!important}
.oc-ar-meta{margin:14px 0 0;font-size:14.5px;color:#5A6B7D}
.oc-ar-meta span[aria-hidden]{margin:0 6px}
.oc-ar-body{font-size:17.5px;line-height:1.8;color:#1D2733}
.oc-ar-body img{max-width:100%;height:auto;border-radius:12px}
.oc-ar-body h2{margin:44px 0 14px;font-size:clamp(24px,2.3vw,30px);line-height:1.25;font-weight:800;letter-spacing:-.02em;color:#000}
.oc-ar-body h3{margin:30px 0 10px;font-size:21px;line-height:1.3;font-weight:800;color:#0B0D10}
.oc-ar-body p,.oc-ar-body li{max-width:75ch}
.oc-ar-body a{color:#0061AE}
.oc-ar-body blockquote{margin:24px 0;padding:14px 20px;border-left:4px solid #0061AE;background:#F3F8FD;border-radius:0 12px 12px 0}
.oc-ar-side{position:sticky;top:calc(var(--oc-hdr,72px) + 20px);display:flex;flex-direction:column;gap:16px}
.oc-ar-card{padding:20px 22px;border:1px solid #DCE6F0;border-radius:14px;background:#fff}
.oc-ar-k{display:block;font-size:12px;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:#5A6B7D}
.oc-ar-cat{display:inline-block;margin:6px 0 8px;font-size:19px;font-weight:800;color:#000}
.oc-ar-cat:hover{color:#0061AE}
.oc-ar-card p{margin:0;font-size:14.5px;line-height:1.6;color:#3A4A5A}
.oc-ar-cta{display:flex;flex-direction:column;gap:8px;color:#fff;border:0;background:linear-gradient(140deg,#003E73,#0061AE 60%,#107072)}
.oc-ar-cta b{font-size:18px;line-height:1.3}
.oc-ar-cta span{font-size:14.5px;color:rgba(255,255,255,.85);margin-bottom:6px}
.oc-ar-cta .oc-btn{align-self:flex-start;min-height:44px}
.oc-ar-link{color:#fff;text-decoration:underline;text-underline-offset:3px;font-weight:700}
.oc-ar-pop .title,.oc-ar-pop h2,.oc-ar-pop h3{font-size:16px;font-weight:800;margin:0 0 10px}
.oc-ar-rel{padding-top:24px;padding-bottom:72px}
@media (max-width:1000px){.oc-ar-wrap{grid-template-columns:1fr;gap:28px}.oc-ar-side{position:static}}

.oc-ar-wrap::before,.oc-ar-wrap::after{display:none!important}
.oc-ar-wrap.container{width:100%;max-width:1280px;padding-left:24px;padding-right:24px}

/* Đầu trang blog gộp tiêu đề + đường dẫn + dẫn nhập + tìm kiếm trong một khối (bỏ dải tiêu đề trắng riêng) */
.oc-bl .oc-bl-hero{padding:28px 0 0}
.oc-bl-crumb ol{display:flex;flex-wrap:wrap;gap:6px;margin:0 0 12px;padding:0;list-style:none;font-size:13.5px;color:#5A6B7D}
.oc-bl-crumb li+li::before{content:"/";margin-right:6px;color:#9AA8B6}
.oc-bl-crumb a{color:#0061AE}.oc-bl-crumb a:hover{text-decoration:underline}
.oc-2026 .oc-bl h1.oc-bl-title{margin:0 0 14px!important;padding:0!important;font-size:clamp(34px,4.6vw,60px)!important;line-height:1.05!important;font-weight:800!important;letter-spacing:-.035em;color:#000;text-align:left;text-wrap:balance}
.oc-bl h1.oc-bl-title::before,.oc-bl h1.oc-bl-title::after{display:none!important}
.oc-bl-hero-in{padding-bottom:8px}

/* Trang chủ blog: «Tech Blog» (H1) là nhãn nhỏ, dòng dẫn nhập làm câu chính; chuyên mục: tên chuyên mục cỡ vừa */
.oc-2026 .oc-bl h1.oc-bl-title{font-size:clamp(28px,3.2vw,40px)!important}
.oc-2026 .oc-bl h1.oc-bl-title.is-pill{display:inline-flex;align-items:center;gap:10px;margin:0 0 16px!important;padding:7px 16px!important;border-radius:999px;border:1px solid #D4E3F2;background:#F3F8FD;font-size:14px!important;font-weight:800!important;letter-spacing:.02em;line-height:1.3!important;color:#0061AE}
.oc-bl h1.oc-bl-title.is-pill::before{content:""!important;display:block!important;width:8px;height:8px;border-radius:50%;background:#297A2D}
#content-wrapper.oc-bl:not(.oc-bl-cat) p.oc-bl-lead{max-width:680px;font-size:clamp(22px,2.4vw,32px);line-height:1.3;font-weight:700;letter-spacing:-.02em;color:#0B0D10}

/* Câu chuyện thành công */
.oc-st-card[hidden]{display:none}
.oc-st-more{display:flex;justify-content:center;margin-top:32px}
.oc-st-more[hidden],.oc-st-more [hidden]{display:none}
.oc-st .oc-bl-hero{padding-bottom:0}
.oc-st .oc-bl-cats{padding-top:20px}