/* =========================================================================
   HVSC – Trụ CÔNG NGHỆ (/cong-nghe/ + 6 trang con) – ngôn ngữ "kỹ sư / blueprint"
   Chỉ nạp trên các trang trụ qua mu-plugins/zz-hv-pillar-tech.php. Mọi lớp bắt đầu bằng .pt
   ========================================================================= */
.pt {
  --pt-bg: #0A0C12; --pt-bg2: #0F121B; --pt-panel: #141826; --pt-panel2: #1A1F30;
  --pt-line: rgba(167,171,255,.16); --pt-line2: rgba(167,171,255,.28);
  --pt-grid: rgba(167,171,255,.055); --pt-grid2: rgba(167,171,255,.10);
  --pt-ink: #F3F1EC; --pt-ink2: #D2D4DE; --pt-mute: #A3A8BA;
  --pt-acc: #A7ABFF; --pt-acc2: #6D72F6; --pt-red: #E31E24; --pt-red-hi: #FF6166;
  --pt-ok: #3DDC97; --pt-warn: #FFC857; --pt-cyan: #5CE1E6;
  --pt-paper: #F4F3EF; --pt-paper-ink: #121316; --pt-paper-mute: #4A4E58; --pt-paper-line: rgba(18,19,22,.10);
  --pt-mono: var(--mono, "JetBrains Mono", ui-monospace, Menlo, monospace);
  --pt-w: 1280px; --pt-r: 14px;
  background: var(--pt-bg); color: var(--pt-ink); font-family: var(--font); overflow-x: clip;
}
.pt *, .pt *::before, .pt *::after { box-sizing: border-box; }
.pt a { color: inherit; }
.pt img { max-width: 100%; height: auto; }
:where(.pt) h1, :where(.pt) h2, :where(.pt) h3, :where(.pt) h4 { font-family: var(--font); letter-spacing: -.01em; margin: 0; color: inherit; text-wrap: balance; }
:where(.pt) p { margin: 0; }
:where(.pt) ul, :where(.pt) ol { margin: 0; padding: 0; list-style: none; }
body.hv-pt-page { background: #0A0C12; }
.pt code, .pt kbd, .pt .mono { font-family: var(--pt-mono); }
.pt-wrap { width: 100%; max-width: var(--pt-w); margin-inline: auto; padding-inline: var(--gutter, 16px); }

/* ---------- Nền blueprint ---------- */
.pt-bp { position: relative; isolation: isolate; }
.pt-bp::before { content: ""; position: absolute; inset: 0; z-index: -1; pointer-events: none;
  background-image:
    linear-gradient(var(--pt-grid2) 1px, transparent 1px), linear-gradient(90deg, var(--pt-grid2) 1px, transparent 1px),
    linear-gradient(var(--pt-grid) 1px, transparent 1px), linear-gradient(90deg, var(--pt-grid) 1px, transparent 1px);
  background-size: 120px 120px, 120px 120px, 24px 24px, 24px 24px; background-position: -1px -1px;
  -webkit-mask-image: radial-gradient(120% 90% at 50% 0%, #000 55%, transparent 100%); mask-image: radial-gradient(120% 90% at 50% 0%, #000 55%, transparent 100%); }

/* ---------- Section ---------- */
.pt-sec { padding-block: clamp(56px, 7vw, 112px); position: relative; }
.pt-sec--dark { background: var(--pt-bg); }
.pt-sec--ink { background: var(--pt-bg2); border-block: 1px solid var(--pt-line); }
.pt-sec--paper { background: var(--pt-paper); color: var(--pt-paper-ink);
  background-image: linear-gradient(var(--pt-paper-line) 1px, transparent 1px), linear-gradient(90deg, var(--pt-paper-line) 1px, transparent 1px);
  background-size: 32px 32px; background-position: -1px -1px; }
.pt-sec--paper { --pt-mute: var(--pt-paper-mute); --pt-line: rgba(18,19,22,.14); --pt-line2: rgba(18,19,22,.24); }
.pt-head { max-width: 860px; margin-bottom: clamp(28px, 4vw, 48px); }
.pt-head--c { margin-inline: auto; text-align: center; }
.pt-label { display: inline-flex; align-items: center; gap: 10px; font: 600 12.5px/1.4 var(--pt-mono); letter-spacing: .08em; text-transform: uppercase; color: var(--pt-acc); margin-bottom: 14px; }
.pt-label > span { display: inline-grid; place-items: center; min-width: 30px; height: 22px; padding: 0 6px; border: 1px solid currentColor; border-radius: 6px; font-size: 12px; }
.pt-sec--paper .pt-label { color: #4338CA; }
.pt-h2 { font-size: clamp(28px, 2.4vw + 14px, 48px); line-height: 1.16; font-weight: 800; }
.pt-h2 em { font-style: normal; color: var(--pt-red-hi); }
.pt-sec--paper .pt-h2 em { color: var(--pt-red); }
.pt-lead { margin-top: 16px; font-size: clamp(16px, .4vw + 15px, 19px); line-height: 1.65; color: var(--pt-ink2); max-width: 760px; }
.pt-sec--paper .pt-lead { color: var(--pt-paper-mute); }
.pt-head--c .pt-lead { margin-inline: auto; }
.pt-txt { font-size: 16px; line-height: 1.7; color: var(--pt-ink2); }
.pt-sec--paper .pt-txt { color: #2B2D33; }
.pt-txt + .pt-txt { margin-top: 12px; }
.pt-txt a, .pt-lead a { color: var(--pt-acc); text-underline-offset: 3px; }
.pt-sec--paper .pt-txt a, .pt-sec--paper .pt-lead a { color: #4338CA; }

/* ---------- Nút ---------- */
.pt-btns { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.pt-btn { display: inline-flex; align-items: center; justify-content: center; gap: 10px; min-height: 50px; padding: 12px 22px; border-radius: 12px; font: 700 16px/1.2 var(--font); text-decoration: none; border: 1.5px solid transparent; transition: transform .18s var(--ease-out, ease), background .18s, border-color .18s, box-shadow .18s; cursor: pointer; text-align: center; }
.pt-btn:hover { transform: translateY(-2px); }
.pt-btn:active { transform: translateY(0) scale(.98); }
.pt-btn:focus-visible { outline: 3px solid var(--pt-acc); outline-offset: 3px; }
.pt-btn--red { background: var(--pt-red); color: #fff !important; box-shadow: 0 10px 28px -10px rgba(227,30,36,.7); }
.pt-btn--red:hover { background: #F0272D; }
.pt-btn--line { border-color: var(--pt-line2); color: var(--pt-ink) !important; background: rgba(255,255,255,.03); }
.pt-btn--line:hover { border-color: var(--pt-acc); background: rgba(167,171,255,.08); }
.pt-sec--paper .pt-btn--line { color: var(--pt-paper-ink) !important; background: #fff; }
.pt-btn--zalo { background: #0068FF; color: #fff !important; }
.pt-btn svg { width: 18px; height: 18px; flex: none; }
.pt-btn .mono { font-size: 13px; opacity: .8; font-weight: 600; }

/* ---------- Hero ---------- */
.pt-hero { padding-block: clamp(28px, 4vw, 56px) clamp(56px, 7vw, 104px); background: radial-gradient(900px 480px at 85% 10%, rgba(109,114,246,.20), transparent 60%), radial-gradient(700px 420px at 0% 100%, rgba(227,30,36,.12), transparent 60%), var(--pt-bg); }
.pt-hero .hv-crumbs { color: var(--pt-mute); font: 500 13px/1.4 var(--pt-mono); margin-bottom: 28px; display: flex; flex-wrap: wrap; gap: 6px; align-items: center; }
.pt-hero .hv-crumbs a { color: var(--pt-ink2); text-decoration: none; }
.pt-hero .hv-crumbs a:hover { color: var(--pt-acc); }
.pt-hero .hv-crumbs svg { width: 12px; height: 12px; opacity: .6; }
.pt-hero .hv-crumbs [aria-current] { color: var(--pt-acc); }
.pt-hero__grid { display: grid; gap: clamp(32px, 4vw, 64px); align-items: center; }
@media (min-width: 1024px) { .pt-hero__grid { grid-template-columns: 1.05fr .95fr; } }
.pt-prompt { display: inline-flex; flex-wrap: wrap; align-items: center; gap: 8px; font: 500 13.5px/1.4 var(--pt-mono); color: var(--pt-mute); padding: 7px 12px; border: 1px solid var(--pt-line); border-radius: 999px; background: rgba(255,255,255,.03); margin-bottom: 22px; }
.pt-prompt b { color: var(--pt-ok); font-weight: 600; }
.pt-prompt i { font-style: normal; color: var(--pt-acc); }
.pt-hero h1 { font-size: clamp(36px, 3.6vw + 16px, 72px); line-height: 1.08; font-weight: 800; letter-spacing: -.025em; }
.pt-hero h1 em { font-style: normal; color: var(--pt-red-hi); }
.pt-hero h1 .pt-h1sub { display: block; color: var(--pt-acc); font-size: .4em; font-weight: 700; letter-spacing: -.01em; margin-top: 10px; line-height: 1.25; }
.pt-hero__lead { margin-top: 22px; font-size: clamp(16.5px, .45vw + 15px, 20px); line-height: 1.65; color: var(--pt-ink2); max-width: 640px; }
.pt-meta { display: flex; flex-wrap: wrap; gap: 8px 18px; margin-top: 28px; font: 500 13px/1.5 var(--pt-mono); color: var(--pt-ink2); }
.pt-meta li { display: inline-flex; align-items: center; gap: 8px; }
.pt-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--pt-ok); box-shadow: 0 0 0 3px rgba(61,220,151,.18); flex: none; }
.pt-dot--red { background: var(--pt-red-hi); box-shadow: 0 0 0 3px rgba(255,97,102,.18); }
.pt-dot--acc { background: var(--pt-acc); box-shadow: 0 0 0 3px rgba(167,171,255,.18); }
.pt-dot--warn { background: var(--pt-warn); box-shadow: 0 0 0 3px rgba(255,200,87,.18); }

/* ---------- Terminal ---------- */
.pt-term { background: #07080C; border: 1px solid var(--pt-line2); border-radius: 16px; box-shadow: 0 40px 80px -30px rgba(0,0,0,.8), 0 0 0 1px rgba(255,255,255,.02) inset; overflow: hidden; min-width: 0; }
.pt-term__bar { display: flex; align-items: center; gap: 8px; padding: 12px 16px; border-bottom: 1px solid var(--pt-line); background: #0D0F16; font: 500 12.5px/1 var(--pt-mono); color: var(--pt-mute); }
.pt-term__bar i { width: 11px; height: 11px; border-radius: 50%; background: #3A3F52; }
.pt-term__bar i:nth-child(1) { background: #FF5F57; } .pt-term__bar i:nth-child(2) { background: #FEBC2E; } .pt-term__bar i:nth-child(3) { background: #28C840; }
.pt-term__bar span { margin-left: 8px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.pt-term__body { margin: 0; padding: 18px 18px 22px; font: 400 13.5px/1.75 var(--pt-mono); color: #CFD3E3; white-space: normal; word-break: break-word; min-height: 300px; }
.pt-term__body .c { color: #7E859B; } /* chú thích */
.pt-term__body .p { color: var(--pt-ok); } /* prompt */
.pt-term__body .k { color: var(--pt-acc); } /* lệnh / khoá */
.pt-term__body .s { color: #FFD580; } /* chuỗi */
.pt-term__body .ok { color: var(--pt-ok); }
.pt-term__body .r { color: var(--pt-red-hi); }
.pt-term__body .w { color: var(--pt-warn); }
.pt-term__body .ln { display: block; min-height: 1.75em; white-space: pre-wrap; }
.pt-term.is-typing .ln { visibility: hidden; }
.pt-term.is-typing .ln.is-on { visibility: visible; }
.pt-caret { display: inline-block; width: .6em; height: 1.1em; vertical-align: -.18em; background: var(--pt-ok); animation: pt-blink 1s steps(1) infinite; }
@keyframes pt-blink { 50% { opacity: 0; } }
.pt-note { margin-top: 10px; font: 500 12px/1.5 var(--pt-mono); color: var(--pt-mute); }
.pt-sec--paper .pt-note { color: var(--pt-paper-mute); }

/* ---------- Thanh mảng (subnav) ---------- */
.pt-sub { background: #07080C; border-block: 1px solid var(--pt-line); position: relative; }
.pt-sub__in { display: flex; gap: 4px; overflow-x: auto; scrollbar-width: none; padding-block: 8px; }
.pt-sub__in::-webkit-scrollbar { display: none; }
.pt-sub a { flex: none; display: inline-flex; align-items: center; gap: 8px; padding: 10px 14px; min-height: 42px; border-radius: 10px; font: 500 13.5px/1.2 var(--pt-mono); color: var(--pt-ink2); text-decoration: none; white-space: nowrap; border: 1px solid transparent; }
.pt-sub a:hover { color: #fff; background: rgba(167,171,255,.08); }
.pt-sub a[aria-current] { color: #fff; border-color: var(--pt-line2); background: rgba(227,30,36,.12); }
.pt-sub a[aria-current]::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--pt-red-hi); }
.pt-sub a span { color: var(--pt-mute); }

/* ---------- Thẻ "issue" (vấn đề) ---------- */
.pt-issues { display: grid; gap: 16px; }
@media (min-width: 720px) { .pt-issues { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1100px) { .pt-issues--3 { grid-template-columns: repeat(3, 1fr); } }
.pt-issue { background: #fff; border: 1px solid rgba(18,19,22,.12); border-radius: var(--pt-r); padding: 22px; display: flex; flex-direction: column; gap: 10px; box-shadow: 0 1px 0 rgba(18,19,22,.04); transition: transform .2s, box-shadow .2s; }
.pt-issue:hover { transform: translateY(-3px); box-shadow: 0 18px 40px -22px rgba(18,19,22,.35); }
.pt-issue__id { display: flex; justify-content: space-between; gap: 10px; flex-wrap: wrap; font: 600 12.5px/1.4 var(--pt-mono); color: #4A4E58; }
.pt-sev { padding: 2px 8px; border-radius: 6px; background: #FFE9EA; color: #A90F14; }
.pt-sev--m { background: #FFF4D6; color: #8A5A00; }
.pt-sev--l { background: #EEF0FF; color: #4338CA; }
.pt-issue h3 { font-size: 19px; line-height: 1.35; font-weight: 700; color: #121316; }
.pt-issue p { font-size: 15.5px; line-height: 1.6; color: #3B3E46; }
.pt-issue__fix { margin-top: auto; padding-top: 12px; border-top: 1px dashed rgba(18,19,22,.18); font-size: 15px; line-height: 1.55; color: #121316; }
.pt-issue__fix b { font: 700 12.5px/1 var(--pt-mono); color: #137A47; margin-right: 6px; letter-spacing: .04em; }

/* ---------- Bento ---------- */
.pt-bento { display: grid; gap: 14px; grid-template-columns: 1fr; }
@media (min-width: 720px) { .pt-bento { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1100px) { .pt-bento { grid-template-columns: repeat(6, 1fr); } .pt-cell { grid-column: span 2; } .pt-cell--w3 { grid-column: span 3; } .pt-cell--w4 { grid-column: span 4; } .pt-cell--w6 { grid-column: span 6; } .pt-cell--tall { grid-row: span 2; } }
@media (min-width: 720px) and (max-width: 1099px) { .pt-cell--w4, .pt-cell--w6 { grid-column: span 2; } }
.pt-cell { position: relative; background: linear-gradient(180deg, var(--pt-panel), #10131D); border: 1px solid var(--pt-line); border-radius: 18px; padding: 24px; overflow: hidden; display: flex; flex-direction: column; gap: 10px; min-width: 0; transition: border-color .2s, transform .2s; }
.pt-cell:hover { border-color: var(--pt-line2); transform: translateY(-2px); }
.pt-cell__tag { font: 600 12px/1.3 var(--pt-mono); color: var(--pt-acc); letter-spacing: .06em; text-transform: uppercase; }
.pt-cell h3 { font-size: 20px; line-height: 1.3; font-weight: 700; }
.pt-cell p { font-size: 15.5px; line-height: 1.6; color: var(--pt-ink2); }
.pt-cell ul.pt-ticks { margin-top: 4px; }
.pt-cell__vis { margin-top: auto; padding-top: 14px; }
.pt-cell--red { background: linear-gradient(160deg, #2A0D10, #140A0C 70%); border-color: rgba(255,97,102,.35); }
.pt-cell--red .pt-cell__tag { color: var(--pt-red-hi); }
.pt-sec--paper .pt-cell { background: #fff; border-color: rgba(18,19,22,.12); }
.pt-sec--paper .pt-cell p { color: #3B3E46; }
.pt-sec--paper .pt-cell__tag { color: #4338CA; }

/* danh sách tick */
.pt-ticks { display: grid; gap: 8px; }
.pt-ticks li { position: relative; padding-left: 26px; font-size: 15.5px; line-height: 1.55; color: var(--pt-ink2); }
.pt-ticks li::before { content: ""; position: absolute; left: 0; top: .32em; width: 15px; height: 15px; border-radius: 4px; border: 1.5px solid var(--pt-ok); background: linear-gradient(135deg, transparent 45%, var(--pt-ok) 45% 55%, transparent 55%); background: none; }
.pt-ticks li::after { content: ""; position: absolute; left: 5px; top: calc(.32em + 2px); width: 4px; height: 8px; border: solid var(--pt-ok); border-width: 0 2px 2px 0; transform: rotate(45deg); }
.pt-ticks b { color: var(--pt-ink); }
.pt-sec--paper .pt-ticks li { color: #2B2D33; }
.pt-sec--paper .pt-ticks b { color: #121316; }
.pt-sec--paper .pt-ticks li::before { border-color: #137A47; }
.pt-sec--paper .pt-ticks li::after { border-color: #137A47; }

/* ---------- Mô-đun dịch vụ (hub) ---------- */
.pt-mods { display: grid; gap: 14px; }
@media (min-width: 720px) { .pt-mods { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1100px) { .pt-mods { grid-template-columns: repeat(3, 1fr); } }
.pt-mod { display: flex; flex-direction: column; gap: 12px; padding: 0; background: var(--pt-panel); border: 1px solid var(--pt-line); border-radius: 18px; text-decoration: none; overflow: hidden; transition: transform .2s, border-color .2s, box-shadow .2s; min-width: 0; }
.pt-mod:hover { transform: translateY(-4px); border-color: var(--pt-acc); box-shadow: 0 24px 50px -28px rgba(109,114,246,.6); }
.pt-mod__top { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 12px 16px; border-bottom: 1px solid var(--pt-line); font: 500 12.5px/1.3 var(--pt-mono); color: var(--pt-mute); background: rgba(0,0,0,.25); }
.pt-mod__top b { color: var(--pt-acc); font-weight: 600; }
.pt-mod__vis { height: 132px; display: grid; place-items: center; padding: 10px 16px 0; }
.pt-mod__vis svg { width: 100%; height: 100%; max-width: 260px; }
.pt-mod__bd { padding: 4px 22px 22px; display: flex; flex-direction: column; gap: 8px; flex: 1; }
.pt-mod h3 { font-size: 21px; font-weight: 700; color: #fff; }
.pt-mod p { font-size: 15.5px; line-height: 1.55; color: var(--pt-ink2); }
.pt-mod__go { margin-top: auto; padding-top: 8px; display: inline-flex; align-items: center; gap: 8px; font: 600 14px/1.2 var(--pt-mono); color: var(--pt-red-hi); }
.pt-mod:hover .pt-mod__go { gap: 12px; }

/* ---------- Sản phẩm đang chạy (thẻ trình duyệt) ---------- */
.pt-prods { display: grid; gap: 16px; }
@media (min-width: 720px) { .pt-prods { grid-template-columns: repeat(2, 1fr); } }
.pt-prod { background: #fff; border: 1px solid rgba(18,19,22,.12); border-radius: 16px; overflow: hidden; display: flex; flex-direction: column; color: #121316; box-shadow: 0 20px 40px -30px rgba(18,19,22,.45); }
.pt-prod__bar { display: flex; align-items: center; gap: 8px; padding: 10px 14px; background: #ECEBE6; border-bottom: 1px solid rgba(18,19,22,.10); }
.pt-prod__bar i { width: 9px; height: 9px; border-radius: 50%; background: #C9C7C2; }
.pt-prod__url { flex: 1; min-width: 0; margin-left: 6px; padding: 5px 10px; border-radius: 7px; background: #fff; font: 500 12.5px/1.2 var(--pt-mono); color: #2B2D33; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.pt-prod__bd { padding: 20px 22px 22px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.pt-prod h3 { font-size: 19px; font-weight: 700; }
.pt-prod p { font-size: 15.5px; line-height: 1.6; color: #3B3E46; }
.pt-prod__tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: auto; padding-top: 6px; }
.pt-prod__tags span { font: 500 12px/1 var(--pt-mono); padding: 6px 8px; border-radius: 6px; background: #EEF0FF; color: #4338CA; }
.pt-prod a.pt-prod__link { font: 600 14px/1.2 var(--pt-mono); color: #A90F14; text-decoration: none; display: inline-flex; gap: 6px; align-items: center; }
.pt-prod a.pt-prod__link:hover { text-decoration: underline; }

/* ---------- Sơ đồ kiến trúc / luồng (SVG) ---------- */
.pt-arch { margin: 0; background: #07080C; border: 1px solid var(--pt-line); border-radius: 20px; padding: clamp(14px, 2vw, 28px); overflow: hidden; }
.pt-arch svg { display: block; width: 100%; height: auto; }
.pt-arch figcaption { margin-top: 14px; font: 500 12.5px/1.6 var(--pt-mono); color: var(--pt-mute); }
.pt-arch .svg-box { fill: #11141F; stroke: rgba(167,171,255,.35); stroke-width: 1.2; }
.pt-arch .svg-box--red { fill: #22090C; stroke: rgba(255,97,102,.6); }
.pt-arch .svg-box--ok { fill: #0C1C16; stroke: rgba(61,220,151,.55); }
.pt-arch .svg-t { fill: #F3F1EC; font: 700 15px var(--font); }
.pt-arch .svg-s { fill: #A3A8BA; font: 500 12px var(--pt-mono); }
.pt-arch .svg-l { stroke: rgba(167,171,255,.55); stroke-width: 1.5; fill: none; }
.pt-arch .svg-flow { stroke: var(--pt-red-hi); stroke-width: 2; fill: none; stroke-dasharray: 6 8; animation: pt-dash 1.6s linear infinite; }
.pt-arch .svg-flow--ok { stroke: var(--pt-ok); }
.pt-arch .svg-flow--acc { stroke: var(--pt-acc); }
@keyframes pt-dash { to { stroke-dashoffset: -28; } }
.pt-arch-wrap { display: grid; gap: 28px; align-items: start; }
@media (min-width: 1024px) { .pt-arch-wrap { grid-template-columns: 1.35fr .65fr; } }
.pt-legend { display: grid; gap: 14px; }
.pt-legend li { padding: 14px 16px; border-left: 2px solid var(--pt-acc2); background: rgba(167,171,255,.05); border-radius: 0 12px 12px 0; }
.pt-legend b { display: block; font: 700 12.5px/1.3 var(--pt-mono); color: var(--pt-acc); letter-spacing: .05em; margin-bottom: 4px; text-transform: uppercase; }
.pt-legend span { font-size: 15px; line-height: 1.55; color: var(--pt-ink2); }
.pt-arch--mobile-scroll { overflow-x: auto; }
@media (max-width: 719px) { .pt-arch--mobile-scroll svg { min-width: 640px; } }

/* ---------- Dashboard chỉ số ---------- */
.pt-dash { display: grid; gap: 14px; grid-template-columns: repeat(2, 1fr); }
@media (min-width: 900px) { .pt-dash { grid-template-columns: repeat(4, 1fr); } }
.pt-kpi { background: #07080C; border: 1px solid var(--pt-line); border-radius: 16px; padding: 18px; display: flex; flex-direction: column; gap: 8px; min-width: 0; }
.pt-kpi__h { display: flex; justify-content: space-between; align-items: center; gap: 8px; font: 600 12px/1.3 var(--pt-mono); color: var(--pt-mute); text-transform: uppercase; letter-spacing: .05em; }
.pt-kpi__v { font: 700 clamp(26px, 2vw + 12px, 36px)/1.1 var(--pt-mono); color: #fff; letter-spacing: -.02em; }
.pt-kpi__v small { font-size: .45em; color: var(--pt-mute); margin-left: 4px; letter-spacing: 0; }
.pt-kpi__d { font-size: 14px; line-height: 1.5; color: var(--pt-ink2); }
.pt-bar { height: 8px; border-radius: 99px; background: rgba(255,255,255,.07); overflow: hidden; position: relative; }
.pt-bar i { position: absolute; inset: 0 auto 0 0; border-radius: inherit; background: linear-gradient(90deg, var(--pt-ok), #9BF0C6); width: var(--v, 50%); transform-origin: left; }
.pt-bar--3 { display: grid; grid-template-columns: var(--a, 1fr) var(--b, 1fr) var(--c, 1fr); gap: 3px; background: none; }
.pt-bar--3 span { border-radius: 99px; } .pt-bar--3 span:nth-child(1) { background: var(--pt-ok); } .pt-bar--3 span:nth-child(2) { background: var(--pt-warn); } .pt-bar--3 span:nth-child(3) { background: var(--pt-red-hi); }
.pt-gauge { width: 76px; height: 76px; flex: none; }
.pt-gauge circle { fill: none; stroke-width: 8; }
.pt-gauge .bg { stroke: rgba(255,255,255,.08); }
.pt-gauge .fg { stroke: var(--pt-ok); stroke-linecap: round; transform: rotate(-90deg); transform-origin: 50% 50%; transition: stroke-dashoffset 1.2s var(--ease-out, ease); }
.pt-uptime { display: grid; grid-template-columns: repeat(30, 1fr); gap: 3px; }
.pt-uptime i { height: 26px; border-radius: 3px; background: var(--pt-ok); opacity: .85; }
.pt-uptime i.w { background: var(--pt-warn); }
.pt-panel { background: #07080C; border: 1px solid var(--pt-line); border-radius: 18px; padding: clamp(16px, 2vw, 24px); }
.pt-panel__h { display: flex; justify-content: space-between; align-items: center; gap: 10px; flex-wrap: wrap; font: 600 12.5px/1.3 var(--pt-mono); color: var(--pt-mute); margin-bottom: 14px; text-transform: uppercase; letter-spacing: .05em; }

/* ---------- Bảng thông số (so sánh gói) ---------- */
.pt-spec { border: 1px solid var(--pt-line); border-radius: 18px; overflow: hidden; background: #fff; color: #121316; }
.pt-spec table { width: 100%; border-collapse: collapse; font-size: 15px; }
.pt-spec th, .pt-spec td { padding: 14px 16px; text-align: left; vertical-align: top; border-bottom: 1px solid rgba(18,19,22,.09); line-height: 1.5; }
.pt-spec thead th { background: #121316; color: #fff; font: 700 15px/1.3 var(--font); vertical-align: bottom; }
.pt-spec thead th small { display: block; font: 500 12px/1.4 var(--pt-mono); color: #C9C7C2; margin-top: 4px; text-transform: none; }
.pt-spec thead th.is-hl { background: var(--pt-red); }
.pt-spec thead th.is-hl small { color: #FFE1E2; }
.pt-spec tbody th { font: 600 13px/1.45 var(--pt-mono); color: #2B2D33; background: #F7F6F3; width: 26%; }
.pt-spec tbody td.is-hl { background: #FFF6F6; }
.pt-spec tr:last-child th, .pt-spec tr:last-child td { border-bottom: 0; }
.pt-y, .pt-n, .pt-o { font: 700 13px/1 var(--pt-mono); display: inline-flex; align-items: center; gap: 6px; }
.pt-y { color: #137A47; } .pt-y::before { content: "●"; font-size: 10px; }
.pt-n { color: #8A8E98; } .pt-n::before { content: "○"; font-size: 10px; }
.pt-o { color: #8A5A00; } .pt-o::before { content: "◐"; font-size: 11px; }
.pt-spec__foot { padding: 14px 16px; background: #F7F6F3; font-size: 14px; color: #3B3E46; border-top: 1px solid rgba(18,19,22,.09); }
@media (max-width: 819px) {
  .pt-spec { background: transparent; border: 0; border-radius: 0; overflow: visible; }
  .pt-spec table, .pt-spec tbody, .pt-spec tr, .pt-spec td, .pt-spec th { display: block; width: 100%; }
  .pt-spec thead { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
  .pt-spec tr { background: #fff; border: 1px solid rgba(18,19,22,.12); border-radius: 14px; margin-bottom: 12px; overflow: hidden; }
  .pt-spec tbody th { background: #121316; color: #fff; border: 0; }
  .pt-spec td { display: flex; justify-content: space-between; gap: 14px; padding: 11px 16px; text-align: right; }
  .pt-spec td::before { content: attr(data-l); font: 600 13px/1.4 var(--font); color: #2B2D33; text-align: left; flex: 0 0 42%; }
  .pt-spec td.is-hl { background: #FFF6F6; }
  .pt-spec__foot { border-radius: 14px; border: 1px solid rgba(18,19,22,.12); }
}

/* ---------- Quy trình (pipeline) ---------- */
.pt-pipe { display: grid; gap: 0; counter-reset: st; position: relative; }
@media (min-width: 1024px) { .pt-pipe { grid-template-columns: repeat(var(--n, 5), 1fr); gap: 14px; } }
.pt-step { position: relative; padding: 0 0 26px 52px; }
.pt-step::before { counter-increment: st; content: counter(st, decimal-leading-zero); position: absolute; left: 0; top: 0; width: 38px; height: 38px; display: grid; place-items: center; border-radius: 10px; background: #07080C; border: 1px solid var(--pt-acc); color: var(--pt-acc); font: 700 13px/1 var(--pt-mono); z-index: 1; }
.pt-step::after { content: ""; position: absolute; left: 19px; top: 38px; bottom: 0; width: 1px; background: repeating-linear-gradient(var(--pt-line2) 0 6px, transparent 6px 12px); }
.pt-step:last-child::after { display: none; }
@media (min-width: 1024px) {
  .pt-step { padding: 56px 0 0; }
  .pt-step::after { left: 46px; right: -14px; top: 19px; bottom: auto; width: auto; height: 1px; background: repeating-linear-gradient(90deg, var(--pt-line2) 0 6px, transparent 6px 12px); }
}
.pt-step__k { font: 600 12px/1.3 var(--pt-mono); color: var(--pt-mute); text-transform: uppercase; letter-spacing: .06em; }
.pt-step h3 { margin-top: 6px; font-size: 19px; line-height: 1.3; font-weight: 700; }
.pt-step p { margin-top: 8px; font-size: 15px; line-height: 1.6; color: var(--pt-ink2); }
.pt-step__out { margin-top: 10px; font: 500 13px/1.5 var(--pt-mono); color: var(--pt-ok); }
.pt-sec--paper .pt-step::before { background: #fff; border-color: #4338CA; color: #4338CA; }
.pt-sec--paper .pt-step p { color: #3B3E46; }
.pt-sec--paper .pt-step__out { color: #137A47; }
.pt-sec--paper .pt-step__k { color: #4A4E58; }

/* ---------- Công nghệ (stack) ---------- */
.pt-stack { display: grid; gap: 14px; }
@media (min-width: 720px) { .pt-stack { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1100px) { .pt-stack { grid-template-columns: repeat(4, 1fr); } }
.pt-stack__g { background: var(--pt-panel); border: 1px solid var(--pt-line); border-radius: 16px; padding: 20px; }
.pt-stack__g h3 { font: 700 13px/1.3 var(--pt-mono); color: var(--pt-acc); text-transform: uppercase; letter-spacing: .06em; margin-bottom: 12px; }
.pt-stack__g p { font-size: 14.5px; line-height: 1.55; color: var(--pt-ink2); margin-top: 12px; }
.pt-chips { display: flex; flex-wrap: wrap; gap: 6px; }
.pt-chips li { font: 500 13px/1 var(--pt-mono); padding: 8px 10px; border-radius: 8px; border: 1px solid var(--pt-line2); color: var(--pt-ink); background: rgba(255,255,255,.03); }

/* ---------- Cam kết (dạng log) ---------- */
.pt-log { display: grid; gap: 12px; }
@media (min-width: 900px) { .pt-log { grid-template-columns: repeat(3, 1fr); } }
.pt-log__i { border: 1px solid var(--pt-line); border-radius: 16px; padding: 22px; background: linear-gradient(180deg, rgba(167,171,255,.06), transparent 60%), var(--pt-bg2); display: flex; flex-direction: column; gap: 10px; }
.pt-log__tag { align-self: flex-start; font: 700 12px/1 var(--pt-mono); padding: 7px 10px; border-radius: 7px; background: rgba(61,220,151,.12); color: var(--pt-ok); letter-spacing: .05em; }
.pt-log__tag--red { background: rgba(255,97,102,.12); color: var(--pt-red-hi); }
.pt-log__tag--acc { background: rgba(167,171,255,.12); color: var(--pt-acc); }
.pt-log__i h3 { font-size: 20px; font-weight: 700; }

/* ---------- Dải CTA giữa trang ---------- */
.pt-band { background: var(--pt-red); color: #fff; }
.pt-band__in { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 18px 28px; padding-block: 26px; }
.pt-band p { font-size: clamp(18px, .6vw + 15px, 22px); font-weight: 700; line-height: 1.4; max-width: 760px; }
.pt-band p small { display: block; font: 500 13.5px/1.5 var(--pt-mono); opacity: .92; margin-top: 4px; }
.pt-band .pt-btns { margin-top: 0; }
.pt-band .pt-btn--w { background: #fff; color: #A90F14 !important; }
.pt-band .pt-btn--o { border-color: rgba(255,255,255,.7); color: #fff !important; }
.pt-band .pt-btn--o:hover { background: rgba(255,255,255,.12); }

/* ---------- FAQ ---------- */
.pt-faq { display: grid; gap: 10px; max-width: 980px; }
.pt-faq details { border: 1px solid var(--pt-line); border-radius: 14px; background: var(--pt-panel); overflow: hidden; }
.pt-faq details[open] { border-color: var(--pt-line2); }
.pt-faq summary { list-style: none; cursor: pointer; display: flex; gap: 14px; align-items: flex-start; padding: 18px 20px; font-size: 17px; font-weight: 700; line-height: 1.45; }
.pt-faq summary::-webkit-details-marker { display: none; }
.pt-faq summary::before { content: ">"; font: 700 15px/1.6 var(--pt-mono); color: var(--pt-red-hi); flex: none; transition: transform .2s; }
.pt-faq details[open] summary::before { transform: rotate(90deg); }
.pt-faq summary:focus-visible { outline: 2px solid var(--pt-acc); outline-offset: -2px; }
.pt-faq__a { padding: 0 20px 20px 46px; font-size: 16px; line-height: 1.7; color: var(--pt-ink2); }
.pt-faq__a p + p { margin-top: 10px; }
.pt-faq__a a { color: var(--pt-acc); }

/* ---------- CTA cuối + form ---------- */
.pt-cta { display: grid; gap: clamp(28px, 4vw, 56px); align-items: start; }
@media (min-width: 1024px) { .pt-cta { grid-template-columns: .9fr 1.1fr; } }
.pt-cta__side { display: grid; gap: 12px; margin-top: 26px; }
.pt-cta__row { display: flex; align-items: center; gap: 14px; padding: 14px 16px; border: 1px solid var(--pt-line); border-radius: 14px; background: rgba(255,255,255,.02); text-decoration: none; }
.pt-cta__row:hover { border-color: var(--pt-acc); }
.pt-cta__row b { display: block; font: 700 16px/1.3 var(--font); color: #fff; }
.pt-cta__row small { display: block; font: 500 13px/1.4 var(--pt-mono); color: var(--pt-mute); margin-top: 2px; }
.pt-cta__ic { display: grid; width: 42px; height: 42px; border-radius: 10px; display: grid; place-items: center; background: rgba(227,30,36,.14); color: var(--pt-red-hi); flex: none; font: 700 14px/1 var(--pt-mono); }
.pt-cta__ic svg { width: 20px; height: 20px; }
.pt-form { background: #fff; color: #121316; border-radius: 20px; padding: clamp(20px, 3vw, 32px); box-shadow: 0 40px 80px -40px rgba(0,0,0,.8); }
.pt-form__h { display: flex; justify-content: space-between; align-items: center; gap: 10px; flex-wrap: wrap; margin-bottom: 18px; }
.pt-form__h b { font-size: 20px; }
.pt-form__h span { font: 500 12.5px/1.3 var(--pt-mono); color: #4A4E58; }
.pt-form .hv-form { margin: 0; padding: 0; background: none; border: 0; box-shadow: none; }
.pt-form label { color: #121316; }

/* ---------- Thiết kế website: khung trình duyệt + wireframe ---------- */
.pt-browser { background: #07080C; border: 1px solid var(--pt-line2); border-radius: 16px; overflow: hidden; box-shadow: 0 40px 80px -30px rgba(0,0,0,.8); }
.pt-browser__bar { display: flex; align-items: center; gap: 8px; padding: 10px 14px; background: #0D0F16; border-bottom: 1px solid var(--pt-line); }
.pt-browser__bar i { width: 10px; height: 10px; border-radius: 50%; background: #3A3F52; }
.pt-browser__url { flex: 1; min-width: 0; margin-left: 8px; padding: 6px 12px; border-radius: 8px; background: #161A26; font: 500 12.5px/1.2 var(--pt-mono); color: var(--pt-ink2); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.pt-browser__url b { color: var(--pt-ok); font-weight: 600; }
.pt-wf { padding: 18px; display: grid; gap: 10px; }
.pt-wf__nav { display: flex; gap: 8px; align-items: center; }
.pt-wf__nav i { height: 10px; border-radius: 4px; background: rgba(255,255,255,.12); flex: 0 0 34px; }
.pt-wf__nav i:first-child { flex-basis: 54px; background: var(--pt-red); }
.pt-wf__nav i:last-child { margin-left: auto; flex-basis: 64px; height: 22px; background: rgba(227,30,36,.5); border-radius: 6px; }
.pt-wf__hero { display: grid; grid-template-columns: 1.2fr 1fr; gap: 12px; padding: 14px; border: 1px dashed var(--pt-line2); border-radius: 10px; }
.pt-wf__hero div { display: grid; gap: 8px; align-content: center; }
.pt-wf__hero i { height: 10px; border-radius: 4px; background: rgba(255,255,255,.14); }
.pt-wf__hero i.h { height: 18px; background: rgba(255,255,255,.3); width: 90%; }
.pt-wf__hero i.b { width: 46%; height: 24px; background: var(--pt-red); border-radius: 6px; margin-top: 4px; }
.pt-wf__img { min-height: 110px; border-radius: 8px; background: linear-gradient(135deg, rgba(109,114,246,.45), rgba(227,30,36,.35)); position: relative; }
.pt-wf__img::after { content: "LCP"; position: absolute; right: 8px; bottom: 8px; font: 700 11px/1 var(--pt-mono); color: #07080C; background: var(--pt-ok); padding: 4px 6px; border-radius: 5px; }
.pt-wf__cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.pt-wf__cards i { height: 54px; border-radius: 8px; border: 1px solid var(--pt-line2); background: rgba(255,255,255,.03); }
.pt-wf__tags { display: flex; flex-wrap: wrap; gap: 6px; padding: 0 18px 18px; }
.pt-wf__tags span { font: 500 12px/1 var(--pt-mono); padding: 6px 8px; border-radius: 6px; color: var(--pt-ok); background: rgba(61,220,151,.1); }

/* ---------- Thiết kế app: khung điện thoại ---------- */
.pt-phones { display: flex; justify-content: center; align-items: flex-end; gap: clamp(10px, 2vw, 24px); }
.pt-phone { position: relative; width: clamp(200px, 22vw, 268px); aspect-ratio: 9 / 19; border-radius: 40px; padding: 10px; background: linear-gradient(160deg, #2A2F42, #0B0D14); box-shadow: 0 0 0 1.5px rgba(255,255,255,.12) inset, 0 40px 80px -30px rgba(0,0,0,.9); flex: none; }
.pt-phone--sm { width: clamp(150px, 15vw, 200px); opacity: .9; transform: translateY(-6%) rotate(-4deg); }
.pt-phone__scr { position: relative; height: 100%; border-radius: 31px; overflow: hidden; background: #F4F3EF; color: #121316; display: flex; flex-direction: column; }
.pt-phone__scr::before { content: ""; position: absolute; top: 8px; left: 50%; width: 32%; height: 20px; transform: translateX(-50%); background: #07080C; border-radius: 99px; z-index: 3; }
.pt-app { position: absolute; inset: 0; padding: 40px 14px 14px; display: flex; flex-direction: column; gap: 10px; opacity: 0; transition: opacity .5s; }
.pt-app.is-on { opacity: 1; }
.pt-app__top { display: flex; justify-content: space-between; align-items: center; font: 700 14px/1.2 var(--font); }
.pt-app__top small { font: 600 11px/1 var(--pt-mono); color: #4A4E58; }
.pt-app__card { border-radius: 14px; padding: 12px; background: #fff; box-shadow: 0 6px 16px -10px rgba(18,19,22,.4); font-size: 12.5px; line-height: 1.4; display: grid; gap: 6px; }
.pt-app__card b { font-size: 13.5px; }
.pt-app__card--red { background: var(--pt-red); color: #fff; }
.pt-app__card--ink { background: #121316; color: #fff; }
.pt-app__row { display: flex; justify-content: space-between; gap: 8px; font: 500 11.5px/1.3 var(--pt-mono); color: #4A4E58; }
.pt-app__card--red .pt-app__row, .pt-app__card--ink .pt-app__row { color: rgba(255,255,255,.85); }
.pt-app__btn { margin-top: auto; text-align: center; padding: 11px; border-radius: 12px; background: #121316; color: #fff; font: 700 13px/1 var(--font); }
.pt-app__tab { margin-top: auto; display: flex; justify-content: space-around; padding: 10px 0 2px; border-top: 1px solid rgba(18,19,22,.1); }
.pt-app__tab i { width: 22px; height: 22px; border-radius: 7px; background: rgba(18,19,22,.12); }
.pt-app__tab i.on { background: var(--pt-red); }
.pt-app__qr { width: 92px; height: 92px; margin: 6px auto; border-radius: 10px; background:
  conic-gradient(from 90deg at 30% 30%, #121316 25%, transparent 0) 0 0 / 18px 18px, #fff; border: 6px solid #fff; outline: 1px solid rgba(18,19,22,.15); }
.pt-app__push { position: absolute; left: 10px; right: 10px; top: 36px; z-index: 4; padding: 10px 12px; border-radius: 14px; background: rgba(18,19,22,.92); color: #fff; font-size: 11.5px; line-height: 1.35; box-shadow: 0 10px 24px -10px rgba(0,0,0,.6); transform: translateY(-140%); opacity: 0; transition: transform .5s var(--ease-spring, ease), opacity .3s; }
.pt-app__push b { display: block; font-size: 12px; }
.pt-app__push.is-on { transform: none; opacity: 1; }
.pt-phone-tabs { display: flex; justify-content: center; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
.pt-phone-tabs button { font: 600 12.5px/1 var(--pt-mono); padding: 9px 12px; border-radius: 99px; border: 1px solid var(--pt-line2); background: transparent; color: var(--pt-ink2); cursor: pointer; min-height: 36px; }
.pt-phone-tabs button[aria-pressed="true"] { background: var(--pt-red); border-color: var(--pt-red); color: #fff; }

/* ---------- Hosting: tủ rack + đèn ---------- */
.pt-rack { background: linear-gradient(180deg, #151826, #0B0D14); border: 1px solid var(--pt-line2); border-radius: 18px; padding: 16px; display: grid; gap: 8px; box-shadow: 0 40px 80px -30px rgba(0,0,0,.85); }
.pt-rack__h { display: flex; justify-content: space-between; align-items: center; font: 600 12px/1.3 var(--pt-mono); color: var(--pt-mute); padding: 2px 4px 6px; flex-wrap: wrap; gap: 6px; }
.pt-unit { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 12px; padding: 11px 14px; border-radius: 9px; background: linear-gradient(180deg, #1C2132, #141826); border: 1px solid rgba(255,255,255,.06); }
.pt-unit__leds { display: flex; gap: 5px; }
.pt-unit__leds i { width: 8px; height: 8px; border-radius: 50%; background: var(--pt-ok); box-shadow: 0 0 8px var(--pt-ok); animation: pt-led 2.4s infinite; }
.pt-unit__leds i:nth-child(2) { animation-delay: .4s; background: var(--pt-cyan); box-shadow: 0 0 8px var(--pt-cyan); }
.pt-unit__leds i:nth-child(3) { animation-delay: 1.1s; animation-duration: 1.3s; }
.pt-unit:nth-child(3n) .pt-unit__leds i:nth-child(3) { background: var(--pt-warn); box-shadow: 0 0 8px var(--pt-warn); }
@keyframes pt-led { 0%, 100% { opacity: 1; } 45% { opacity: .35; } 55% { opacity: 1; } }
.pt-unit__n { font: 600 13px/1.3 var(--pt-mono); color: #fff; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.pt-unit__n small { display: block; font-weight: 500; font-size: 12px; color: var(--pt-mute); }
.pt-unit__vent { width: 64px; height: 18px; background: repeating-linear-gradient(90deg, rgba(255,255,255,.14) 0 2px, transparent 2px 6px); border-radius: 3px; }
.pt-rack__foot { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 6px; font: 500 12px/1.4 var(--pt-mono); color: var(--pt-mute); padding: 6px 4px 0; }

/* ---------- CRM: luồng dữ liệu ---------- */
.pt-kanban { display: grid; grid-template-columns: repeat(4, minmax(150px, 1fr)); gap: 10px; overflow-x: auto; padding-bottom: 6px; }
.pt-kcol { background: rgba(255,255,255,.03); border: 1px solid var(--pt-line); border-radius: 12px; padding: 10px; display: grid; gap: 8px; align-content: start; min-width: 0; }
.pt-kcol h4 { font: 700 12px/1.3 var(--pt-mono); text-transform: uppercase; letter-spacing: .05em; color: var(--pt-mute); display: flex; justify-content: space-between; }
.pt-kcard { background: #F4F3EF; color: #121316; border-radius: 9px; padding: 9px 10px; font-size: 12.5px; line-height: 1.4; border-left: 3px solid var(--pt-acc2); }
.pt-kcard b { display: block; font-size: 13px; }
.pt-kcard small { font: 500 11.5px/1.3 var(--pt-mono); color: #4A4E58; }
.pt-kcard--ok { border-left-color: #1FA463; }
.pt-kcard--red { border-left-color: var(--pt-red); }
.pt-kcard.is-move { animation: pt-move 4.5s var(--ease-out, ease) infinite; }
@keyframes pt-move { 0%, 30% { transform: none; opacity: 1; } 45% { transform: translateX(14px); opacity: .4; } 60%, 100% { transform: none; opacity: 1; } }

/* ---------- Quản trị: checklist tự kiểm ---------- */
.pt-chk { display: grid; gap: 16px; }
@media (min-width: 1024px) { .pt-chk { grid-template-columns: 1.4fr .6fr; align-items: start; } }
.pt-chk__list { display: grid; gap: 8px; }
.pt-chk__list label { display: flex; gap: 14px; align-items: flex-start; padding: 14px 16px; border-radius: 12px; background: #fff; border: 1px solid rgba(18,19,22,.12); cursor: pointer; transition: border-color .15s, background .15s; color: #121316; }
.pt-chk__list label:hover { border-color: #4338CA; }
.pt-chk__list input { appearance: none; -webkit-appearance: none; width: 22px; height: 22px; border-radius: 6px; border: 2px solid #8A8E98; flex: none; margin: 1px 0 0; display: grid; place-items: center; cursor: pointer; background: #fff; }
.pt-chk__list input:checked { background: #137A47; border-color: #137A47; }
.pt-chk__list input:checked::after { content: ""; width: 5px; height: 10px; border: solid #fff; border-width: 0 2.5px 2.5px 0; transform: rotate(45deg) translate(-1px, -1px); }
.pt-chk__list input:focus-visible { outline: 3px solid #4338CA; outline-offset: 2px; }
.pt-chk__list label:has(input:checked) { background: #F0F9F4; border-color: rgba(19,122,71,.45); }
.pt-chk__list b { display: block; font-size: 16px; line-height: 1.35; }
.pt-chk__list span { display: block; font-size: 14.5px; line-height: 1.5; color: #3B3E46; margin-top: 3px; }
.pt-chk__list code { font-size: 12px; color: #4A4E58; }
.pt-chk__res { position: sticky; top: calc(var(--header-h, 72px) + var(--subnav-h, 0px) + 16px); background: #121316; color: #fff; border-radius: 18px; padding: 22px; display: grid; gap: 12px; }
.pt-chk__score { font: 700 48px/1 var(--pt-mono); }
.pt-chk__score small { font-size: 18px; color: var(--pt-mute); }
.pt-chk__msg { font-size: 15.5px; line-height: 1.6; color: var(--pt-ink2); }
.pt-chk__res .pt-bar i { transition: width .4s var(--ease-out, ease); }

/* ---------- Tên miền ---------- */
.pt-domain-box { margin-top: 8px; }
.pt-domain-box .hv-domain-wrap { margin: 0; }
.pt-tlds { display: grid; gap: 12px; grid-template-columns: repeat(auto-fill, minmax(min(100%, 240px), 1fr)); }
.pt-tld { background: var(--pt-panel); border: 1px solid var(--pt-line); border-radius: 16px; padding: 18px; display: flex; flex-direction: column; gap: 8px; }
.pt-tld__n { font: 700 26px/1 var(--pt-mono); color: #fff; letter-spacing: -.02em; }
.pt-tld__n span { color: var(--pt-red-hi); }
.pt-tld__k { font: 600 12px/1.3 var(--pt-mono); color: var(--pt-acc); text-transform: uppercase; letter-spacing: .05em; }
.pt-tld p { font-size: 14.5px; line-height: 1.55; color: var(--pt-ink2); }
.pt-tld__w { margin-top: auto; padding-top: 8px; border-top: 1px dashed var(--pt-line2); font-size: 13.5px; line-height: 1.5; color: var(--pt-mute); }

/* ---------- Hai cột chữ + hình ---------- */
.pt-split { display: grid; gap: clamp(28px, 4vw, 56px); align-items: center; }
@media (min-width: 1024px) { .pt-split { grid-template-columns: 1fr 1fr; } .pt-split--rev > :first-child { order: 2; } }
.pt-fig { margin: 0; border-radius: 18px; overflow: hidden; border: 1px solid var(--pt-line); position: relative; }
.pt-fig img { display: block; width: 100%; height: 100%; object-fit: cover; aspect-ratio: 3 / 2; }
.pt-fig figcaption { position: absolute; left: 10px; bottom: 10px; font: 500 12px/1.3 var(--pt-mono); color: #fff; background: rgba(7,8,12,.72); padding: 6px 8px; border-radius: 6px; }

/* ---------- So sánh 2 cột (vs) ---------- */
.pt-vs { display: grid; gap: 14px; }
@media (min-width: 820px) { .pt-vs { grid-template-columns: 1fr 1fr; } }
.pt-vs__c { border-radius: 18px; padding: 24px; border: 1px solid var(--pt-line); background: var(--pt-panel); }
.pt-vs__c h3 { font-size: 20px; margin-bottom: 14px; display: flex; gap: 10px; align-items: center; }
.pt-vs__c h3 .mono { font-size: 12px; padding: 5px 8px; border-radius: 6px; background: rgba(167,171,255,.12); color: var(--pt-acc); font-weight: 600; }
.pt-vs__c--hl { border-color: rgba(255,97,102,.45); background: linear-gradient(160deg, #22090C, var(--pt-panel) 60%); }
.pt-vs__c--hl h3 .mono { background: rgba(255,97,102,.15); color: var(--pt-red-hi); }
.pt-vs dl { margin: 0; display: grid; gap: 0; }
.pt-vs dl div { display: grid; grid-template-columns: 40% 1fr; gap: 12px; padding: 10px 0; border-top: 1px solid var(--pt-line); }
.pt-vs dt { font: 600 13px/1.5 var(--pt-mono); color: var(--pt-mute); }
.pt-vs dd { margin: 0; font-size: 15px; line-height: 1.55; color: var(--pt-ink); }

/* ---------- Tiện ích ---------- */
.pt-mt { margin-top: clamp(24px, 3vw, 40px); }
.pt-center { text-align: center; }
.pt-grid2 { display: grid; gap: 16px; }
@media (min-width: 900px) { .pt-grid2 { grid-template-columns: 1fr 1fr; } }
.pt-callout { border: 1px solid var(--pt-line2); border-left: 3px solid var(--pt-red-hi); border-radius: 0 14px 14px 0; padding: 18px 20px; background: rgba(255,97,102,.05); font-size: 16px; line-height: 1.65; color: var(--pt-ink2); }
.pt-callout b { color: #fff; }
.pt-sec--paper .pt-callout { background: #fff; color: #2B2D33; border-color: rgba(18,19,22,.14); border-left-color: var(--pt-red); }
.pt-sec--paper .pt-callout b { color: #121316; }
.pt-sr { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* Ẩn khi hiện dần (chỉ khi có JS) */
.pt-js .pt-rv { opacity: 0; transform: translateY(16px); transition: opacity .6s var(--ease-out, ease), transform .6s var(--ease-out, ease); }
.pt-js .pt-rv.is-in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  .pt *, .pt *::before, .pt *::after { animation: none !important; transition: none !important; }
  .pt-js .pt-rv { opacity: 1; transform: none; }
}
@media (max-width: 599px) {
  .pt-hero h1 { font-size: clamp(32px, 9vw, 40px); }
  .pt-term__body { font-size: 12.5px; min-height: 0; padding: 14px; }
  .pt-btns .pt-btn { flex: 1 1 100%; }
  .pt-band .pt-btns .pt-btn { flex: 1 1 100%; }
  .pt-phone--sm { display: none; }
  .pt-uptime { grid-template-columns: repeat(20, 1fr); } .pt-uptime i:nth-child(n+21) { display: none; }
  .pt-unit__vent { display: none; }
  .pt-faq summary { font-size: 16px; padding: 16px; }
  .pt-faq__a { padding: 0 16px 16px 16px; }
}

/* --- sửa sau QA v1 --- */
.pt-cell p a, .pt-cell__links a { font: 600 14px/1.4 var(--pt-mono); color: var(--pt-acc); text-decoration: underline; text-underline-offset: 3px; }
.pt-sec--paper .pt-cell p a { color: #4338CA; }
.pt-sec--paper .pt-cell--red { background: linear-gradient(160deg, #A90F14, #6E0A0D); border-color: #A90F14; color: #fff; }
.pt-sec--paper .pt-cell--red p, .pt-sec--paper .pt-cell--red .pt-cell__tag { color: #FFE1E2; }
.pt-sec--paper .pt-cell--red p a { color: #fff; }
.pt-arch .svg-m { display: none; }
@media (max-width: 719px) {
  .pt-arch .svg-d { display: none; } .pt-arch .svg-m { display: block; }
  .pt-arch--mobile-scroll svg { min-width: 0; }
  .pt-spec tbody th { width: 100% !important; background: #121316 !important; color: #fff !important; font-size: 13.5px; }
  .pt-spec tbody tr:nth-child(n) td { background: #fff; } .pt-spec tbody tr td.is-hl { background: #FFF6F6; }
}
.pt-spec tbody tr:nth-child(n) th { background: #F7F6F3; }
.pt [id] { scroll-margin-top: calc(var(--header-h, 72px) + var(--subnav-h, 0px) + 12px); }
.pt-reads { margin-top: clamp(24px, 3vw, 40px); display: grid; gap: 8px; }
.pt-prompt { max-width: 100%; overflow-wrap: anywhere; }
.pt-hero__txt, .pt-hero__grid > * { min-width: 0; }
.pt-chk__list b { color: #121316; } .pt-chk__list > label > span { margin-top: 0; color: inherit; }

/* QA 11/10: kanban hero desktop vừa khung (4 cột), mobile vẫn cuộn ngang */
@media (min-width: 900px) { .pt-kanban { grid-template-columns: repeat(4, minmax(104px, 1fr)); } }

/* =========================================================================
   tech3 (11/10): định vị THIẾT KẾ WEB – thẻ vuốt ngang mobile, Giao diện mẫu, kéo thả, rủi ro/backup
   ========================================================================= */
.pt-hint { display: none; }
@media (max-width: 719px) {
  .pt-swipe { display: flex !important; grid-template-columns: none !important; overflow-x: auto; scroll-snap-type: x mandatory; gap: 12px; margin-inline: calc(var(--gutter, 16px) * -1); padding: 2px var(--gutter, 16px) 14px; scroll-padding-inline: var(--gutter, 16px); -webkit-overflow-scrolling: touch; scrollbar-width: none; overscroll-behavior-x: contain; }
  .pt-swipe::-webkit-scrollbar { display: none; }
  .pt-swipe > * { flex: 0 0 84%; max-width: 340px; scroll-snap-align: start; min-width: 0; }
  .pt-hint { display: block; margin: -6px 0 12px; font: 500 12px/1.3 var(--pt-mono); color: var(--pt-mute); }
  .pt-sec--paper .pt-hint { color: var(--pt-paper-mute); }
  .pt-pipe.pt-swipe .pt-step { padding: 62px 18px 18px; background: var(--pt-panel); border: 1px solid var(--pt-line); border-radius: 16px; }
  .pt-pipe.pt-swipe .pt-step::after { display: none; }
  .pt-pipe.pt-swipe .pt-step::before { left: 18px; top: 16px; }
  .pt-sec--paper .pt-pipe.pt-swipe .pt-step { background: #fff; border-color: rgba(18,19,22,.12); }
  .pt-swipe .pt-issue { padding: 18px; }
  .pt-sec { padding-block: 44px; }
  .pt-head { margin-bottom: 22px; }
  .pt-mod__vis { height: 96px; }
}

/* Giao diện mẫu (thẻ placeholder, ảnh dựng bằng SVG) */
.pt-demos { display: grid; gap: 16px; }
@media (min-width: 720px) { .pt-demos { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1100px) { .pt-demos { grid-template-columns: repeat(3, 1fr); } }
.pt-demo { position: relative; display: flex; flex-direction: column; background: var(--pt-panel); border: 1px solid var(--pt-line); border-radius: 18px; overflow: hidden; text-decoration: none; color: inherit; min-width: 0; transition: transform .2s, border-color .2s, box-shadow .2s; }
.pt-demo:hover { transform: translateY(-4px); border-color: var(--pt-acc); box-shadow: 0 24px 50px -28px rgba(109,114,246,.6); }
.pt-demo__vis { display: block; position: relative; aspect-ratio: 16 / 10; background: #0F121B; border-bottom: 1px solid var(--pt-line); }
.pt-demo__vis svg { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }
.pt-demo__badge { position: absolute; top: 10px; left: 10px; z-index: 2; padding: 5px 10px; border-radius: 999px; background: rgba(10,12,18,.88); border: 1px solid var(--pt-line2); color: #fff; font: 700 11.5px/1 var(--pt-mono); letter-spacing: .03em; }
.pt-demo__bd { padding: 16px 18px 18px; display: flex; flex-direction: column; gap: 6px; flex: 1; }
.pt-demo__tag { font: 600 11.5px/1.3 var(--pt-mono); color: var(--pt-acc); text-transform: uppercase; letter-spacing: .06em; }
.pt-demo h3 { font-size: 18px; line-height: 1.3; font-weight: 700; color: #fff; }
.pt-demo p { font-size: 14.5px; line-height: 1.5; color: var(--pt-ink2); }
.pt-demo__go { margin-top: auto; padding-top: 8px; font: 600 13.5px/1.2 var(--pt-mono); color: var(--pt-red-hi); }

/* Giao diện kéo thả (minh hoạ) */
.pt-dd { display: grid; gap: 12px; background: var(--pt-panel); border: 1px solid var(--pt-line); border-radius: 18px; padding: 14px; }
@media (min-width: 900px) { .pt-dd { grid-template-columns: 150px 1fr 170px; } }
.pt-dd__side { background: rgba(0,0,0,.25); border: 1px solid var(--pt-line); border-radius: 12px; padding: 10px; display: grid; gap: 6px; align-content: start; font: 500 12.5px/1.3 var(--pt-mono); color: var(--pt-mute); }
.pt-dd__side b { color: var(--pt-acc); font-weight: 600; font-size: 11.5px; text-transform: uppercase; letter-spacing: .06em; }
.pt-dd__chip { display: flex; align-items: center; gap: 8px; padding: 8px 9px; border-radius: 8px; border: 1px dashed var(--pt-line2); color: var(--pt-ink2); cursor: grab; }
.pt-dd__chip::before { content: "⋮⋮"; color: var(--pt-mute); letter-spacing: -2px; }
@media (max-width: 899px) { .pt-dd__side--props { display: none; } .pt-dd__side:first-child { grid-template-columns: repeat(2, 1fr); } .pt-dd__side:first-child b { grid-column: 1 / -1; } }
.pt-dd__canvas { position: relative; background: #fff; border-radius: 12px; padding: 12px; display: grid; gap: 8px; min-height: 250px; align-content: start; color: #121316; overflow: hidden; }
.pt-dd__blk { border-radius: 8px; border: 1px solid rgba(18,19,22,.14); padding: 10px 12px; font: 600 12.5px/1.3 var(--pt-mono); color: #2B2D33; background: #F7F6F3; display: flex; justify-content: space-between; gap: 8px; }
.pt-dd__blk--hero { background: linear-gradient(120deg, #EEF0FF, #FFE9EA); min-height: 62px; align-items: center; }
.pt-dd__blk--on { outline: 2px solid var(--pt-acc2); outline-offset: 1px; }
.pt-dd__drag { position: absolute; left: 14px; right: 14px; top: 156px; z-index: 3; padding: 10px 12px; border-radius: 8px; background: #fff; border: 2px solid var(--pt-red); box-shadow: 0 14px 30px -10px rgba(227,30,36,.5); font: 700 12.5px/1.3 var(--pt-mono); color: #A90F14; animation: pt-dd-move 5.5s ease-in-out infinite; }
@keyframes pt-dd-move { 0%, 12% { transform: translate(120px, 90px) rotate(2deg); opacity: 0; } 22% { opacity: 1; } 55%, 78% { transform: translate(0, 0) rotate(0); opacity: 1; } 92%, 100% { transform: translate(0, 0); opacity: 0; } }
.pt-dd__prop { display: flex; justify-content: space-between; gap: 6px; padding: 6px 0; border-bottom: 1px dashed var(--pt-line); }
.pt-dd__prop span:last-child { color: var(--pt-ink2); }
.pt-videos { display: grid; gap: 10px; margin-top: 4px; }
.pt-videos li { display: flex; gap: 12px; align-items: center; padding: 12px 14px; background: rgba(0,0,0,.22); border: 1px solid var(--pt-line); border-radius: 12px; font-size: 15px; color: var(--pt-ink2); }
.pt-videos li::before { content: "▶"; flex: none; width: 30px; height: 30px; display: grid; place-items: center; border-radius: 8px; background: var(--pt-red); color: #fff; font-size: 12px; }

/* Quản trị rủi ro: dòng chảy phòng thủ + backup độc lập */
.pt-flow { display: grid; gap: 10px; }
@media (min-width: 900px) { .pt-flow { grid-template-columns: repeat(4, 1fr); gap: 26px; } }
.pt-flow__i { position: relative; background: var(--pt-panel); border: 1px solid var(--pt-line); border-radius: 16px; padding: 18px; display: flex; flex-direction: column; gap: 6px; min-width: 0; }
.pt-flow__i--ok { border-color: rgba(61,220,151,.4); }
.pt-flow__i--red { border-color: rgba(255,97,102,.45); }
.pt-flow__k { font: 600 11.5px/1.3 var(--pt-mono); color: var(--pt-acc); text-transform: uppercase; letter-spacing: .06em; }
.pt-flow__i h3 { font-size: 17.5px; font-weight: 700; color: #fff; }
.pt-flow__i p { font-size: 14.5px; line-height: 1.55; color: var(--pt-ink2); }
.pt-flow__i:not(:last-child)::after { content: "↓"; position: absolute; left: 50%; bottom: -14px; transform: translateX(-50%); z-index: 2; width: 22px; height: 22px; display: grid; place-items: center; border-radius: 50%; background: #07080C; border: 1px solid var(--pt-red-hi); color: var(--pt-red-hi); font: 700 12px/1 var(--pt-mono); }
@media (min-width: 900px) { .pt-flow__i:not(:last-child)::after { content: "→"; left: auto; right: -24px; bottom: auto; top: 50%; transform: translateY(-50%); } }
@media (max-width: 719px) { .pt-flow.pt-swipe .pt-flow__i:not(:last-child)::after { display: none; } }

/* Dải chip loại web / tích hợp */
.pt-cell--ico .pt-cell__ico { width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center; background: rgba(109,114,246,.18); border: 1px solid var(--pt-line2); color: var(--pt-acc); font: 700 15px/1 var(--pt-mono); }
.pt-sec--paper .pt-cell--ico .pt-cell__ico { background: #EEF0FF; color: #4338CA; border-color: rgba(67,56,202,.25); }
@media (max-width: 719px) { .pt-swipe .pt-cell { padding: 18px; } .pt-swipe .pt-cell h3 { font-size: 18px; } }

/* ===== Vòng chuyên gia đợt 2 (11/10/2026): chỉ THÊM ===== */
@media(min-width:1100px){
  .pt-hero .pt-term__body{font-size:13.5px;line-height:1.8;padding:22px 26px}
  .pt-hero .pt-term__bar span{font-size:12px}
  .pt-hero .pt-note{font-size:12px}
}
.pt-wf__tags{gap:8px}
.pt-wf__tags span{font-size:12px}
.pt-demo__go{font-size:12.5px}