/* Bố cục theo sitemap-coauths.html (30/09/2026): mỗi trang xếp section đúng thứ tự trong sitemap.
     Khung nét đứt + nhãn "Cần bổ sung" / "Giai đoạn 2" = chỗ chờ dữ liệu thật. */
  :root {
    --green: #1C523E;
    --green-deep: #12382B;
    --green-hover: #16442F;
    --tint: #E9F0EC;
    --tint-2: #F4F7F5;
    --ink: #0C100E;
    --ink-2: #3A423E;
    --ink-3: #5E6862;
    --line: #DCE2DE;
    --dash: #B4C0B9;
    --paper: #FFFFFF;
    --paper-2: #F8F9F7;
    --need: #8A5A12;
    --need-soft: #FBEFD9;
    --on-dark: #FFFFFF;
    --on-dark-2: #CFE0D7;
    --on-dark-3: #8FB3A3;
    --display: 'Newsreader', 'Be Vietnam Pro', Georgia, serif;
    --sans: 'Be Vietnam Pro', system-ui, -apple-system, 'Segoe UI', sans-serif;
    --radius: 6px;
    --header-h: 76px;
    --shadow-shot: 0 40px 80px -36px rgba(12, 16, 14, .38), 0 10px 24px -14px rgba(12, 16, 14, .22);
    --shadow-card: 0 14px 34px -22px rgba(12, 16, 14, .28);
    --ease: cubic-bezier(.2, .7, .2, 1);
    color-scheme: light;
  }
  * { box-sizing: border-box; }
  body { margin: 0; font-family: var(--sans); font-size: 16px; line-height: 1.6; color: var(--ink); background: var(--paper); -webkit-font-smoothing: antialiased; overflow-x: hidden; }
  h1, h2, h3, .display { font-family: var(--display); font-weight: 400; letter-spacing: -.015em; line-height: 1.1; text-wrap: balance; margin: 0; }
  h1 { font-size: clamp(34px, 4.6vw, 56px); }
  h2 { font-size: clamp(30px, 3.6vw, 44px); line-height: 1.14; }
  h3 { font-size: clamp(21px, 2vw, 25px); line-height: 1.28; }
  p { margin: 0; }
  a { color: var(--green); text-decoration: none; }
  a:hover { color: var(--green-hover); }
  img { max-width: 100%; display: block; }
  :focus-visible { outline: 2px solid var(--green); outline-offset: 3px; border-radius: 3px; }
  button { font-family: inherit; }
  .icon { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; flex: none; }
  .icon--sm { width: 15px; height: 15px; }

  .wrap { width: min(1200px, 100% - 40px); margin-inline: auto; }
  @media (max-width: 640px) { .wrap { width: min(1200px, 100% - 32px); } }

  .eyebrow { display: inline-flex; align-items: center; gap: 12px; font-size: 12px; font-weight: 600; letter-spacing: .18em; text-transform: uppercase; color: var(--green); }
  .eyebrow::before { content: ''; width: 26px; height: 1px; background: currentColor; }
  .lead { font-size: clamp(17px, 1.35vw, 19px); line-height: 1.65; color: var(--ink-2); max-width: 36em; }
  .muted { color: var(--ink-3); }
  .chip { display: inline-flex; align-items: center; height: 26px; padding: 0 11px; border-radius: 999px; font-size: 11px; font-weight: 600; letter-spacing: .06em; text-transform: uppercase; white-space: nowrap; }
  .chip--live { background: var(--tint); color: var(--green); }
  .chip--soon { border: 1px solid var(--line); color: var(--ink-2); }
  .chip--soon-dark { border: 1px solid rgba(255,255,255,.4); color: var(--on-dark); }

  /* nhãn trạng thái nội dung (giống chú giải trong sitemap) */
  .tag { display: inline-flex; align-items: center; height: 22px; padding: 0 9px; border-radius: 999px; font-family: var(--sans); font-size: 11px; font-weight: 600; letter-spacing: .02em; white-space: nowrap; vertical-align: middle; }
  .tag--need { background: var(--need-soft); color: var(--need); }
  .tag--plan { border: 1px dashed var(--ink-3); color: var(--ink-3); background: var(--paper); }
  .head-row { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
  /* khung chờ nội dung */
  .ph { border: 1.5px dashed var(--dash); border-radius: 10px; background: var(--tint-2); color: var(--ink-3); display: flex; align-items: center; justify-content: center; text-align: center; font-size: 13px; line-height: 1.45; padding: 14px; }
  .ph--img { aspect-ratio: 16 / 10; }
  .ph--wide { aspect-ratio: 21 / 9; }
  .ph--sq { aspect-ratio: 1; font-family: var(--display); font-size: 34px; }
  .ph--logo { height: 64px; font-weight: 600; letter-spacing: .08em; text-transform: uppercase; font-size: 11px; }
  .ph-text { color: var(--ink-3); font-style: italic; }
  body.hide-plan .is-plan { display: none !important; }

  .btn { display: inline-flex; align-items: center; justify-content: center; gap: 10px; height: 52px; padding: 0 28px; border-radius: var(--radius); font-size: 15px; font-weight: 600; border: 1px solid transparent; cursor: pointer; transition: background .2s var(--ease), color .2s var(--ease), transform .2s var(--ease), border-color .2s var(--ease); white-space: nowrap; }
  .btn--primary { background: var(--green); color: var(--on-dark); }
  .btn--primary:hover { background: var(--green-hover); color: var(--on-dark); transform: translateY(-1px); }
  .btn--outline { background: transparent; color: var(--green); border-color: var(--green); }
  .btn--outline:hover { background: var(--tint); color: var(--green); }
  .btn--white { background: var(--paper); color: var(--green); }
  .btn--white:hover { background: var(--tint); color: var(--green-deep); transform: translateY(-1px); }
  .btn--ghost { background: transparent; color: var(--on-dark); border-color: rgba(255,255,255,.5); }
  .btn--ghost:hover { background: rgba(255,255,255,.1); color: var(--on-dark); }
  .btn--sm { height: 42px; padding: 0 18px; font-size: 14px; }
  .link { display: inline-flex; align-items: center; gap: 8px; font-weight: 600; color: var(--ink); }
  .link .icon { transition: transform .2s var(--ease); }
  .link:hover { color: var(--green); }
  .link:hover .icon { transform: translateX(3px); }
  .link--green { color: var(--green); }
  .link--light { color: var(--on-dark); }
  .link--light:hover { color: var(--on-dark-2); }

  .lang { display: inline-flex; align-items: center; gap: 2px; border: 1px solid var(--line); border-radius: 999px; padding: 3px; }
  .lang button { height: 28px; padding: 0 11px; border: 0; border-radius: 999px; background: transparent; font-size: 13px; font-weight: 600; color: var(--ink-3); cursor: pointer; transition: background .2s, color .2s; }
  .lang button[aria-pressed="true"] { background: var(--green); color: var(--on-dark); }
  .lang button:hover:not([aria-pressed="true"]) { color: var(--ink); }
  .lang--dark { border-color: #2E3532; }
  .lang--dark button { color: #9AA29D; }
  .lang--dark button[aria-pressed="true"] { background: var(--on-dark); color: var(--ink); }

  /* ---------- header ---------- */
  .site-header { position: sticky; top: env(safe-area-inset-top, 0px); z-index: 50; background: rgba(255,255,255,.94); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); transition: box-shadow .25s var(--ease); }
  .site-header.is-scrolled { box-shadow: 0 8px 24px -18px rgba(12,16,14,.35); }
  .nav { height: 76px; display: flex; align-items: center; gap: 32px; }
  .nav__logo img { height: 24px; width: auto; }
  .nav__links { display: flex; align-items: center; gap: 26px; flex: 1; }
  .nav__links > a, .dd__btn { font: inherit; font-size: 15px; font-weight: 500; color: var(--ink-2); padding: 6px 0; border: 0; border-bottom: 2px solid transparent; background: none; cursor: pointer; display: inline-flex; align-items: center; gap: 6px; transition: color .2s, border-color .2s; }
  .nav__links > a:hover, .dd__btn:hover { color: var(--ink); }
  .nav__links [aria-current="page"] { color: var(--green); border-bottom-color: var(--green); }
  .dd { position: relative; }
  .dd__btn .icon { width: 14px; height: 14px; transition: transform .2s var(--ease); }
  .dd.is-open .dd__btn .icon { transform: rotate(180deg); }
  .dd__menu { position: absolute; top: calc(100% + 14px); left: -18px; min-width: 300px; background: var(--paper); border: 1px solid var(--line); border-radius: 10px; box-shadow: var(--shadow-card); padding: 8px; display: none; flex-direction: column; }
  .dd.is-open .dd__menu { display: flex; }
  /* cầu vô hình bắc qua khoảng hở giữa nút và menu, để chuột đi xuống không bị tính là rời menu */
  .dd__menu::before { content: ""; position: absolute; left: 0; right: 0; top: -16px; height: 16px; }
  .dd__menu a { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 11px 12px; border-radius: 6px; font-size: 15px; font-weight: 500; color: var(--ink); }
  .dd__menu a:hover { background: var(--tint-2); color: var(--green); }
  .dd__menu a:first-child { color: var(--ink-3); font-size: 13px; font-weight: 600; border-bottom: 1px solid var(--line); border-radius: 6px 6px 0 0; margin-bottom: 4px; }
  .nav__cta { display: flex; align-items: center; gap: 16px; }
  .nav__support { font-size: 14px; font-weight: 500; color: var(--ink-2); display: inline-flex; align-items: center; gap: 5px; white-space: nowrap; }
  .nav__burger { display: none; width: 44px; height: 44px; align-items: center; justify-content: center; background: none; border: 0; color: var(--ink); cursor: pointer; }
  .nav__mobile { display: none; }
  @media (max-width: 1100px) {
    :root { --header-h: 64px; }
    .nav { height: 64px; gap: 12px; }
    .nav__links, .nav__support, .nav__cta .lang { display: none; }
    .nav__cta { margin-left: auto; gap: 6px; }
    .nav__burger { display: inline-flex; }
    .nav__mobile { flex-direction: column; gap: 2px; padding-block: 8px 20px; border-top: 1px solid var(--line); }
    .nav__mobile.is-open { display: flex; }
    .nav__mobile a { padding: 12px 4px; font-size: 17px; font-weight: 500; color: var(--ink); border-bottom: 1px solid var(--line); display: flex; align-items: center; justify-content: space-between; gap: 12px; }
    .nav__mobile a.sub { padding-left: 20px; font-size: 15.5px; color: var(--ink-2); }
    .nav__mobile a[aria-current="page"] { color: var(--green); }
    .nav__mobile .lang { align-self: flex-start; margin-top: 12px; }
  }
  @media (max-width: 380px) { .nav__cta .btn { padding: 0 12px; font-size: 13px; } }

  /* ---------- sections ---------- */
  .section { padding-block: clamp(64px, 8vw, 112px); }
  .section--sm { padding-block: clamp(44px, 5vw, 72px); }
  .section--tint { background: var(--paper-2); }
  .section--deep { background: var(--green-deep); color: var(--on-dark); }
  .section--deep h2, .section--deep h3 { color: var(--on-dark); }
  .section--green { background: var(--green); color: var(--on-dark); }
  .section--green h2 { color: var(--on-dark); }
  .section-head { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: 40px; align-items: end; margin-bottom: clamp(36px, 4.5vw, 56px); }
  .section-head--solo { display: flex; flex-direction: column; align-items: flex-start; gap: 14px; }
  @media (max-width: 800px) { .section-head { grid-template-columns: 1fr; gap: 18px; } }

  /* ---------- hero ---------- */
  .hero { padding-block: clamp(48px, 7vw, 104px) clamp(56px, 7vw, 96px); }
  .hero__grid { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr); gap: clamp(32px, 5vw, 72px); align-items: center; }
  .hero__copy { display: flex; flex-direction: column; gap: 26px; align-items: flex-start; }
  .hero__copy h1 { font-size: clamp(34px, 4.2vw, 54px); line-height: 1.12; }
  .hero__actions { display: flex; flex-wrap: wrap; align-items: center; gap: 16px 28px; margin-top: 8px; }
  .hero__visual { position: relative; padding-bottom: 72px; padding-left: 40px; }
  .hero__photo { aspect-ratio: 4 / 5; border-radius: 12px; overflow: hidden; background: var(--tint); }
  .hero__photo img { width: 100%; height: 100%; object-fit: cover; object-position: 50% 60%; }
  .hero__shot { position: absolute; left: 0; bottom: 0; width: 72%; }
  @media (max-width: 900px) {
    .hero__grid { grid-template-columns: 1fr; }
    .hero__visual { padding-left: 0; padding-bottom: 56px; }
    .hero__photo { aspect-ratio: 5 / 4; }
    .hero__shot { width: 78%; }
  }

  .shot { border-radius: 10px; overflow: hidden; border: 1px solid var(--line); background: var(--paper); box-shadow: var(--shadow-shot); }
  .shot__bar { height: 32px; display: flex; align-items: center; gap: 6px; padding: 0 12px; border-bottom: 1px solid var(--line); background: var(--paper-2); }
  .shot__bar i { width: 9px; height: 9px; border-radius: 50%; background: var(--line); }
  .shot__bar span { margin-left: 10px; flex: 1; height: 16px; border-radius: 4px; background: var(--tint); max-width: 220px; }
  .shot img { width: 100%; height: auto; }
  .shot--flat { box-shadow: var(--shadow-card); }

  .wordmark { aspect-ratio: 16 / 10; border-radius: 10px; background: var(--tint); display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 8px; color: var(--green); }
  .wordmark b { font-family: var(--display); font-weight: 400; font-size: clamp(64px, 8vw, 110px); line-height: 1; letter-spacing: -.02em; }
  .wordmark span { font-size: 13px; font-weight: 600; letter-spacing: .16em; text-transform: uppercase; text-align: center; padding-inline: 12px; }
  .photo { border-radius: 10px; overflow: hidden; background: var(--tint); aspect-ratio: 16 / 10; }
  .photo img { width: 100%; height: 100%; object-fit: cover; }

  .channels { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); padding-block: 22px; display: flex; align-items: center; gap: 28px; flex-wrap: wrap; }
  .channels__label { font-size: 13px; font-weight: 600; color: var(--ink-3); white-space: nowrap; }
  .channels__list { display: flex; flex-wrap: wrap; gap: 8px; }
  .channels__list span { display: inline-flex; align-items: center; height: 34px; padding: 0 14px; border: 1px solid var(--line); border-radius: 999px; font-size: 14px; font-weight: 500; color: var(--ink); background: var(--paper); }

  .cards-3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; }
  .cards-4 { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 24px; }
  .cards-5 { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 16px; }
  @media (max-width: 900px) { .cards-3 { grid-template-columns: 1fr; } .cards-4 { grid-template-columns: 1fr 1fr; } .cards-5 { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
  @media (max-width: 560px) { .cards-4 { grid-template-columns: 1fr; } .cards-5 { grid-template-columns: 1fr 1fr; } }
  .card { background: var(--paper); border: 1px solid var(--line); border-radius: 10px; padding: 30px 28px; display: flex; flex-direction: column; gap: 14px; transition: transform .25s var(--ease), box-shadow .25s var(--ease); }
  .card:hover { transform: translateY(-3px); box-shadow: var(--shadow-card); }
  .card__icon { width: 46px; height: 46px; border-radius: 12px; background: var(--tint); color: var(--green); display: inline-flex; align-items: center; justify-content: center; margin-bottom: 6px; }
  .card__icon .icon { width: 22px; height: 22px; }
  .card p { color: var(--ink-2); font-size: 15px; }
  .card--plain { padding: 24px 22px; gap: 8px; }
  .card--plain b { font-size: 17px; font-weight: 600; }
  .card--dash { border-style: dashed; border-color: var(--dash); }
  .card--dash:hover { transform: none; box-shadow: none; }

  .prow { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(32px, 5vw, 80px); align-items: center; padding-block: clamp(36px, 4vw, 56px); }
  .prow + .prow { border-top: 1px solid rgba(255,255,255,.16); }
  .prow--flip .prow__media { order: -1; }
  .prow__copy { display: flex; flex-direction: column; gap: 18px; }
  .prow__copy p { color: var(--on-dark-2); font-size: 16.5px; max-width: 34em; }
  .prow__title { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
  .prow__list { display: grid; grid-template-columns: 1fr 1fr; gap: 10px 20px; margin: 4px 0 0; padding: 0; list-style: none; }
  .prow__list li { display: flex; gap: 10px; align-items: flex-start; font-size: 14.5px; color: var(--on-dark-2); }
  .prow__list .icon { width: 16px; height: 16px; stroke-width: 2; margin-top: 4px; color: var(--on-dark-3); }
  @media (max-width: 900px) { .prow { grid-template-columns: 1fr; } .prow--flip .prow__media { order: 0; } .prow__list { grid-template-columns: 1fr; } }

  .steps { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 28px; }
  .steps--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .steps--5 { grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 20px; }
  .step { display: flex; flex-direction: column; gap: 14px; }
  .step__n { display: flex; align-items: center; gap: 14px; }
  .step__n b { width: 36px; height: 36px; border: 1px solid var(--green); border-radius: 50%; display: inline-flex; align-items: center; justify-content: center; font-family: var(--display); font-weight: 400; font-size: 16px; color: var(--green); flex: none; }
  .step__n i { flex: 1; height: 1px; background: var(--line); }
  .step h3 { font-size: 20px; }
  .step p { font-size: 15px; color: var(--ink-2); }
  .step__year { font-family: var(--display); font-size: 26px; color: var(--ink-3); line-height: 1; }
  @media (max-width: 900px) { .steps, .steps--5 { grid-template-columns: 1fr 1fr; } }
  @media (max-width: 560px) { .steps, .steps--3, .steps--5 { grid-template-columns: 1fr; } .step__n i { display: none; } }

  .cta { display: flex; align-items: center; justify-content: space-between; gap: 40px; flex-wrap: wrap; }
  .cta__copy { display: flex; flex-direction: column; gap: 14px; max-width: 40em; align-items: flex-start; }
  .cta__copy p { color: var(--on-dark-2); font-size: 17px; }
  .cta__actions { display: flex; gap: 14px; flex-wrap: wrap; }

  .phero { padding-block: clamp(48px, 6vw, 88px) clamp(40px, 5vw, 64px); border-bottom: 1px solid var(--line); }
  .phero--flush { border-bottom: 0; }
  .phero__grid { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: 40px; align-items: end; }
  .phero__copy { display: flex; flex-direction: column; gap: 20px; align-items: flex-start; }
  @media (max-width: 800px) { .phero__grid { grid-template-columns: 1fr; gap: 20px; } }
  .crumbs { display: flex; gap: 10px; font-size: 14px; color: var(--ink-3); margin-bottom: 28px; }
  .crumbs a { color: var(--ink-3); }
  .crumbs a:hover { color: var(--green); }

  .rules { display: flex; flex-direction: column; }
  .rule { display: grid; grid-template-columns: 190px 1fr; gap: 20px; padding-block: 20px; border-top: 1px solid var(--line); font-size: 15.5px; }
  .rule:last-child { border-bottom: 1px solid var(--line); }
  .rule b { font-weight: 600; }
  .rule span { color: var(--ink-2); }
  @media (max-width: 640px) { .rule { grid-template-columns: 1fr; gap: 6px; } }

  .split { display: grid; grid-template-columns: minmax(0, 4fr) minmax(0, 7fr); gap: clamp(28px, 5vw, 72px); align-items: start; }
  .split > :first-child { display: flex; flex-direction: column; gap: 18px; align-items: flex-start; }
  @media (max-width: 800px) { .split { grid-template-columns: 1fr; } }

  .cols-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 28px 40px; }
  @media (max-width: 800px) { .cols-2 { grid-template-columns: 1fr; } }
  .tile { border-top: 2px solid var(--green); padding-top: 22px; display: flex; flex-direction: column; gap: 12px; }
  .tile p { font-size: 15.5px; color: var(--ink-2); }
  .tile b { font-size: 17px; font-weight: 600; }
  .tile--dark { border-top-color: var(--on-dark-3); }
  .tile--dark p { color: var(--on-dark-2); }
  .tile--dash { border-top-style: dashed; border-top-color: var(--dash); }
  .stat b { font-family: var(--display); font-weight: 400; font-size: clamp(34px, 3.6vw, 46px); line-height: 1; color: var(--green); }
  .tile--dash.stat b { color: var(--dash); }

  .note { border-left: 2px solid var(--green); background: var(--tint-2); padding: 16px 20px; font-size: 15px; color: var(--ink-2); }
  .note--dark { border-left-color: var(--on-dark-3); background: rgba(255,255,255,.06); color: var(--on-dark-2); }

  .table-wrap { overflow-x: auto; }
  table.matrix { width: 100%; border-collapse: collapse; font-size: 15px; min-width: 520px; }
  .matrix th { text-align: left; padding: 0 12px 14px; font-size: 13px; font-weight: 600; color: var(--ink-2); border-bottom: 1px solid #C9D2CC; }
  .matrix td { padding: 16px 12px; border-bottom: 1px solid var(--line); color: var(--ink-2); }
  .matrix td:first-child, .matrix th:first-child { padding-left: 0; font-weight: 600; color: var(--ink); }
  .matrix .yes { color: var(--green); font-weight: 600; }
  .matrix .soon { color: var(--ink-3); }

  .quote { border-left: 2px dashed var(--dash); padding-left: clamp(18px, 3vw, 36px); display: flex; flex-direction: column; gap: 18px; }
  .quote p { font-family: var(--display); font-size: clamp(22px, 2.4vw, 30px); line-height: 1.35; }

  .posts { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 28px; }
  .post { display: flex; flex-direction: column; gap: 12px; }
  .post__meta { font-size: 13px; color: var(--ink-3); }
  .post h3 { font-size: 20px; }
  .post--feature { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: clamp(24px, 4vw, 48px); align-items: center; }
  @media (max-width: 900px) { .posts { grid-template-columns: 1fr; } .post--feature { grid-template-columns: 1fr; } }
  .filters { display: flex; flex-wrap: wrap; gap: 8px; }
  .filters button { height: 36px; padding: 0 14px; border: 1px solid var(--line); border-radius: 999px; background: var(--paper); font-size: 14px; font-weight: 500; color: var(--ink-2); cursor: pointer; }
  .filters button[aria-pressed="true"] { background: var(--green); border-color: var(--green); color: var(--on-dark); }
  .newsrow { display: grid; grid-template-columns: 150px minmax(0, 1fr) auto; gap: 20px; padding-block: 22px; border-top: 1px solid var(--line); align-items: baseline; }
  .newsrow:last-child { border-bottom: 1px solid var(--line); }
  @media (max-width: 640px) { .newsrow { grid-template-columns: 1fr; gap: 6px; } }

  .faq details { border-top: 1px solid var(--line); padding-block: 18px; }
  .faq details:last-child { border-bottom: 1px solid var(--line); }
  .faq summary { cursor: pointer; font-weight: 600; font-size: 17px; list-style: none; display: flex; justify-content: space-between; gap: 16px; }
  .faq summary::-webkit-details-marker { display: none; }
  .faq summary::after { content: '+'; font-family: var(--display); font-size: 24px; line-height: 1; color: var(--green); }
  .faq details[open] summary::after { content: '–'; }
  .faq details p { margin-top: 10px; }

  .member { display: flex; flex-direction: column; gap: 12px; }
  .member b { font-size: 17px; font-weight: 600; }

  .contact { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); gap: clamp(32px, 5vw, 72px); align-items: start; }
  @media (max-width: 900px) { .contact { grid-template-columns: 1fr; } }
  .form { border: 1px solid var(--line); border-radius: 12px; padding: clamp(24px, 3vw, 40px); display: flex; flex-direction: column; gap: 22px; background: var(--paper); box-shadow: var(--shadow-card); scroll-margin-top: 96px; }
  .form--dark { background: rgba(255,255,255,.06); border-color: rgba(255,255,255,.2); box-shadow: none; }
  .form--flat { box-shadow: none; }
  .field { display: flex; flex-direction: column; gap: 8px; }
  .field label { font-size: 13px; font-weight: 600; color: var(--ink-2); }
  .field input, .field select, .field textarea { width: 100%; height: 48px; padding: 0 14px; border: 1px solid var(--line); border-radius: var(--radius); font: inherit; font-size: 15px; color: var(--ink); background: var(--paper); transition: border-color .2s; }
  .field textarea { height: auto; padding: 12px 14px; resize: vertical; min-height: 120px; }
  .field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--green); box-shadow: 0 0 0 3px var(--tint); }
  .form--dark .field label { color: var(--on-dark-2); }
  .form--dark .field input { background: rgba(255,255,255,.08); border-color: rgba(255,255,255,.3); color: #fff; }
  .inline-field { display: flex; gap: 10px; flex-wrap: wrap; }
  .inline-field input { flex: 1; min-width: 200px; }
  .inline-field .btn { height: 48px; }
  .form__row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
  @media (max-width: 560px) { .form__row { grid-template-columns: 1fr; } }
  .form__fields { display: flex; flex-direction: column; gap: 22px; }
  .check { display: flex; gap: 12px; align-items: flex-start; font-size: 14px; color: var(--ink-2); }
  .check input { width: 18px; height: 18px; margin-top: 3px; accent-color: var(--green); flex: none; }
  .form__done { display: none; padding: 18px 20px; border-radius: var(--radius); background: var(--tint); color: var(--green-deep); font-size: 15px; }
  .form--dark .form__done { background: rgba(255,255,255,.12); color: #fff; }
  .form.is-sent .form__done { display: block; }
  .form.is-sent .form__fields { display: none; }
  .info { display: flex; flex-direction: column; scroll-margin-top: 96px; }
  .info__row { padding-block: 20px; border-top: 1px solid var(--line); display: flex; flex-direction: column; gap: 6px; align-items: flex-start; }
  .info__row:last-child { border-bottom: 1px solid var(--line); }
  .info__row small { font-size: 12px; font-weight: 600; letter-spacing: .16em; text-transform: uppercase; color: var(--ink-3); }
  .info__row b { font-size: 17px; font-weight: 600; }
  .info__row a b { color: var(--ink); }

  .footer { background: var(--ink); color: var(--on-dark); padding-block: 56px 72px; }
  .footer__grid { display: grid; grid-template-columns: 1.4fr repeat(3, 1fr); gap: 32px; }
  .footer__brand img { height: 22px; width: auto; filter: brightness(0) invert(1); }
  .footer__brand p { margin-top: 16px; font-size: 14.5px; color: #9AA29D; max-width: 28em; }
  .footer h4 { margin: 0 0 16px; font-size: 12px; font-weight: 600; letter-spacing: .16em; text-transform: uppercase; color: #7C8680; }
  .footer ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 10px; }
  .footer ul a { color: var(--on-dark); font-size: 15px; }
  .footer ul a:hover { color: var(--on-dark-2); }
  .footer__legal { margin-top: 36px; padding: 14px 16px; border: 1px dashed #3A423E; border-radius: 8px; font-size: 13.5px; color: #9AA29D; display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }
  .footer__social { display: flex; gap: 8px; margin-top: 18px; flex-wrap: wrap; }
  .footer__social span { font-size: 12px; padding: 4px 10px; border: 1px dashed #3A423E; border-radius: 999px; color: #9AA29D; }
  .footer__bottom { margin-top: 28px; padding-top: 24px; border-top: 1px solid #262B28; display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; font-size: 14px; color: #7C8680; }
  .footer__bottom a { color: #9AA29D; }
  @media (max-width: 800px) { .footer__grid { grid-template-columns: 1fr 1fr; } }
  @media (max-width: 480px) { .footer__grid { grid-template-columns: 1fr; } }

  /* thanh xem thử: bật/tắt phần giai đoạn 2 */
  .preview-bar { position: fixed; left: 14px; bottom: 14px; z-index: 60; display: flex; align-items: center; gap: 4px; padding: 4px; background: var(--ink); border-radius: 999px; box-shadow: 0 10px 30px -10px rgba(0,0,0,.5); max-width: calc(100% - 28px); }
  .preview-bar span { font-size: 12px; color: #9AA29D; padding: 0 8px 0 12px; white-space: nowrap; }
  .preview-bar button { height: 30px; padding: 0 12px; border: 0; border-radius: 999px; background: transparent; color: #CFD6D2; font-size: 12.5px; font-weight: 600; cursor: pointer; white-space: nowrap; }
  .preview-bar button[aria-pressed="true"] { background: var(--paper); color: var(--ink); }
  @media (max-width: 480px) { .preview-bar span { display: none; } }

  /* ---------- dữ liệu minh hoạ (lớp FAKE): ảnh và ô logo thay cho khung nét đứt ---------- */
  .photo--wide { aspect-ratio: 21 / 9; }
  .photo--sq { aspect-ratio: 1; }
  .photo--tall { aspect-ratio: 4 / 5; height: 100%; }
  .logo-cell { height: 64px; border: 1px solid var(--line); border-radius: 10px; background: var(--paper); display: flex; align-items: center; justify-content: center; padding: 0 14px; }
  .logo-cell img { max-height: 30px; width: auto; max-width: 100%; }
  .tag--demo { background: var(--need-soft); color: var(--need); }
  .footer__social a { font-size: 12px; padding: 4px 10px; border: 1px solid #3A423E; border-radius: 999px; color: #9AA29D; }
  .footer__social a:hover { color: #ffffff; border-color: #9AA29D; }
  .store-btns { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 6px; }
  .store-btns a { display: inline-flex; align-items: center; gap: 8px; height: 40px; padding: 0 16px; border: 1px solid rgba(255,255,255,.4); border-radius: 8px; color: var(--on-dark); font-size: 14px; font-weight: 500; }
  .store-btns a:hover { background: rgba(255,255,255,.1); color: var(--on-dark); }
  [data-theme="dark"] .logo-cell img { filter: invert(1) hue-rotate(180deg) brightness(1.15); }
  :root { --display: 'Be Vietnam Pro', system-ui, -apple-system, 'Segoe UI', sans-serif; }
  h1, h2, h3, .display { font-weight: 600; letter-spacing: -.025em; line-height: 1.16; }
  h1 { font-size: clamp(32px, 4.2vw, 52px); }
  h2 { font-size: clamp(27px, 3.2vw, 40px); }
  h3 { letter-spacing: -.012em; line-height: 1.3; }
  .wordmark b, .stat b, .step__year { font-weight: 600; letter-spacing: -.03em; }
  .step__n b, .ph--sq { font-weight: 600; }
  .quote p { font-weight: 500; letter-spacing: -.01em; }
  .brand-hero__tagline { font-weight: 500; }
  /* header khi đang nằm trên hero thương hiệu: gắn cứng vào đầu hero (không bám theo màn hình),
     nền trong, logo trắng, nút Đặt lịch demo dạng viền trắng, menu chữ lớn hơn, VN | EN có vạch ngăn.
     Cuộn hết hero thì header thường (bám màn hình) trượt xuống. */
  .site-header { transition: box-shadow .25s var(--ease), background .25s var(--ease), border-color .25s var(--ease); }
  .site-header.is-over:not(.menu-open) { position: relative; top: auto; background: linear-gradient(rgba(2,22,14,.45), transparent) no-repeat padding-box; border-bottom-color: transparent; backdrop-filter: none; -webkit-backdrop-filter: none; box-shadow: none; }
  .site-header.is-over:not(.menu-open) .wrap { width: 100%; padding-inline: clamp(24px, 5vw, 100px); }
  .site-header.is-over:not(.menu-open) .nav__logo img { filter: brightness(0) invert(1); }
  .site-header.is-over:not(.menu-open) .nav__cta .btn { background: transparent; color: #edf5ef; border: 1px solid rgba(255,255,255,.55); }
  .site-header.is-over:not(.menu-open) .nav__cta .btn:hover { background: rgba(255,255,255,.12); color: #ffffff; transform: none; }
  .site-header.is-over:not(.menu-open) .nav__links { gap: clamp(24px, 2.4vw, 46px); }
  .site-header.is-over:not(.menu-open) .nav__links > a,
  .site-header.is-over:not(.menu-open) .dd__btn { color: #eef5ef; font-size: clamp(16px, 1.2vw, 21px); font-weight: 500; }
  .site-header.is-over:not(.menu-open) .nav__support { color: #edf5ef; font-size: clamp(14px, 1.05vw, 18px); }
  .site-header.is-over:not(.menu-open) .nav__links > a:hover,
  .site-header.is-over:not(.menu-open) .dd__btn:hover,
  .site-header.is-over:not(.menu-open) .nav__support:hover { color: #ffffff; }
  .site-header.is-over:not(.menu-open) .nav__cta { gap: 24px; margin-left: auto; }
  .site-header.is-over:not(.menu-open) .lang { border: 0; border-left: 1px solid #ffffff35; border-radius: 0; padding: 0 0 0 24px; gap: 14px; }
  .site-header.is-over:not(.menu-open) .lang button { height: auto; padding: 0; border-radius: 0; background: transparent; color: #bbcfc1; font-size: clamp(14px, 1.05vw, 18px); font-weight: 500; }
  .site-header.is-over:not(.menu-open) .lang button[aria-pressed="true"] { background: transparent; color: #ffffff; }
  .site-header.is-over:not(.menu-open) .nav__burger { color: #ffffff; }
  .site-header.is-over:not(.menu-open) :focus-visible { outline-color: #ffffff; }
  .site-header.is-revealed { animation: header-in .25s var(--ease); }
  @keyframes header-in { from { transform: translateY(-100%); } to { transform: none; } }

  /* ===== Coauths hero — all rules scoped under .cx-hero ===== */
  
  .cx-hero {
    /* Light theme tokens */
    --bg: #F5F6F0; --ink: #10241F; --head: #10241F; --logo: #3A5242; --sub: #3F504A; --nav: #1B2E28;
    --nav-bg: rgba(245,246,240,.78); --nav-line: rgba(22,62,54,.08); --nav-line2: rgba(22,62,54,.18);
    --img-filter: none;
    --scrim: radial-gradient(ellipse 55% 48% at 50% 48%, rgba(245,246,240,.97) 0%, rgba(245,246,240,.84) 45%, rgba(245,246,240,.4) 100%);
    --head-glow: 0 2px 30px rgba(245,246,240,.95), 0 0 60px rgba(245,246,240,.9);
    --accent: #163E36; --accent-text: #FFFFFF;
    --demo-line: rgba(22,62,54,.45); --demo-text: #163E36;
    --halo: rgba(22,62,54,.07); --halo-border: rgba(22,62,54,.14);
    --dd-bg: #FFFFFF; --dd-line: rgba(22,62,54,.12);
    --seg-light-bg: #163E36; --seg-light-icon: #FFFFFF; --seg-dark-bg: transparent; --seg-dark-icon: #3F504A;
    --lang-on: #10241F; --lang-off: #8A9893;
    --aip-bg: #FFFFFF; --aip-line: rgba(22,62,54,.12); --aip-tag: #8A4B37; --aip-btn: #10241F; --aip-btn-text: #FFFFFF;
    --mx: 0; --my: 0;
  
    position: relative;
    min-height: max(760px, 100svh);
    overflow: hidden;
    background: var(--bg);
    color: var(--ink);
    font-family: 'Poppins', 'Noto Sans KR', system-ui, sans-serif;
    transition: background .4s;
  }
  .cx-hero[data-theme="dark"] {
    --bg: #07140f; --ink: #e9f2ec; --head: #f4faf6; --logo: #f4faf6; --sub: #b9ccc2; --nav: #e9f2ec;
    --nav-bg: rgba(7,20,15,.55); --nav-line: rgba(190,230,210,.08); --nav-line2: rgba(190,230,210,.22);
    --img-filter: brightness(.72) saturate(.9);
    --scrim: radial-gradient(ellipse 55% 48% at 50% 48%, rgba(7,20,15,.97) 0%, rgba(7,20,15,.86) 45%, rgba(7,20,15,.5) 100%), radial-gradient(1200px 520px at 50% -8%, rgba(46,128,90,.32), transparent 70%);
    --head-glow: 0 2px 30px rgba(7,20,15,.9), 0 0 60px rgba(7,20,15,.8);
    --accent: #e3efe8; --accent-text: #0b2018;
    --demo-line: rgba(233,242,236,.55); --demo-text: #f4faf6;
    --halo: rgba(233,242,236,.08); --halo-border: rgba(190,230,210,.16);
    --dd-bg: #0d1d17; --dd-line: rgba(190,230,210,.12);
    --seg-light-bg: transparent; --seg-light-icon: #b9ccc2; --seg-dark-bg: #e3efe8; --seg-dark-icon: #0b2018;
    --lang-on: #f4faf6; --lang-off: #7f978b;
    --aip-bg: #0d1d17; --aip-line: rgba(190,230,210,.12); --aip-tag: #E9C9BC; --aip-btn: #e3efe8; --aip-btn-text: #0b2018;
  }
  .cx-hero *, .cx-hero *::before, .cx-hero *::after { box-sizing: border-box; }
  .cx-hero a { color: inherit; }
  .cx-hero:lang(ko) .cx-headline, .cx-hero:lang(ko) .cx-sub, html[lang="ko"] .cx-hero .cx-headline, html[lang="ko"] .cx-hero .cx-sub { word-break: keep-all; }
  
  /* ---- Background cards ---- */
  .cx-bg { position: absolute; inset: 0; pointer-events: none; filter: var(--img-filter); }
  .cx-card {
    position: absolute; --k: 14px;
    transform: translate(calc(-50% + var(--mx) * var(--k)), calc(-50% + var(--my) * var(--k)));
    transition: transform 1.1s cubic-bezier(.2,.7,.2,1);
  }
  .cx-card.near { --k: 30px; }
  .cx-card.mid  { --k: 16px; }
  .cx-card.far  { --k: 7px; }
  .cx-card img {
    display: block; width: 100%; height: auto; object-fit: cover; border-radius: 14px;
    box-shadow: 0 18px 40px rgba(0,0,0,.16); background: #E6E8E0; will-change: transform;
    animation-timing-function: ease-in-out; animation-iteration-count: infinite; animation-delay: var(--dl, 0s);
  }
  .cx-card.ui img { border: 1px solid rgba(22,62,54,.12); }
  .cx-card.near img { filter: blur(1px);   opacity: .78; }
  .cx-card.mid img  { filter: blur(2.5px); opacity: .6; }
  .cx-card.far img  { filter: blur(4px);   opacity: .42; }
  .d1 img { animation-name: cxD1; animation-duration: 24s; }
  .d2 img { animation-name: cxD2; animation-duration: 28s; }
  .d3 img { animation-name: cxD3; animation-duration: 21s; }
  .d4 img { animation-name: cxD4; animation-duration: 31s; }
  @keyframes cxD1 { 0%,100%{transform:translate(0,0) rotate(0)} 25%{transform:translate(9px,-12px) rotate(.4deg)} 50%{transform:translate(16px,2px) rotate(0)} 75%{transform:translate(6px,11px) rotate(-.4deg)} }
  @keyframes cxD2 { 0%,100%{transform:translate(0,0) rotate(0)} 25%{transform:translate(-11px,8px) rotate(-.3deg)} 50%{transform:translate(-4px,16px) rotate(.2deg)} 75%{transform:translate(7px,6px) rotate(.4deg)} }
  @keyframes cxD3 { 0%,100%{transform:translate(0,0)} 33%{transform:translate(8px,10px)} 66%{transform:translate(-8px,6px)} }
  @keyframes cxD4 { 0%,100%{transform:translate(0,0) rotate(0)} 30%{transform:translate(-8px,-10px) rotate(.3deg)} 60%{transform:translate(6px,-14px) rotate(-.3deg)} 85%{transform:translate(10px,-4px) rotate(0)} }
  .cx-scrim { position: absolute; inset: 0; background: var(--scrim); pointer-events: none; }
  
  /* ---- Foreground ---- */
  .cx-fg { position: relative; z-index: 2; display: flex; flex-direction: column; min-height: max(760px, 100svh); }
  
  /* Nav */
  .cx-nav { position: relative; z-index: 5; background: var(--nav-bg); border-bottom: 1px solid var(--nav-line); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); }
  .cx-nav-in { max-width: 1760px; margin: 0 auto; display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 18px clamp(16px, 4vw, 80px); }
  .cx-nav-left { display: flex; align-items: center; gap: 40px; }
  .cx-logo { display: inline-flex; align-items: center; }
  .cx-logo img { height: 24px; width: auto; display: block; }
  .cx-hero[data-theme="dark"] .cx-logo img { filter: brightness(0) invert(1); }
  .cx-logo-o { display: inline-block; transform: scaleX(-1); margin-left: -.06em; }
  .cx-links { display: flex; align-items: center; gap: 34px; font-size: 17px; font-weight: 500; }
  .cx-navlink { color: var(--nav) !important; text-decoration: none; transition: opacity .2s; }
  .cx-navlink:hover { opacity: .7; }
  .cx-dd-wrap { position: relative; }
  .cx-navbtn { display: inline-flex; align-items: center; gap: 6px; min-height: 44px; padding: 0; background: transparent; border: 0; color: var(--nav); font: inherit; cursor: pointer; }
  .cx-chev { transition: transform .2s; }
  .cx-navbtn[aria-expanded="true"] .cx-chev { transform: rotate(180deg); }
  .cx-dd { position: absolute; top: 52px; left: -14px; width: 300px; padding: 8px; border-radius: 14px; background: var(--dd-bg); border: 1px solid var(--dd-line); box-shadow: 0 24px 50px rgba(0,0,0,.18); display: flex; flex-direction: column; }
  .cx-dd[hidden] { display: none; }
  .cx-dd a { display: flex; flex-direction: column; gap: 2px; padding: 12px 14px; border-radius: 10px; text-decoration: none; color: var(--head) !important; }
  .cx-dd a:hover { background: rgba(127,127,127,.1); }
  .cx-dd b { font-weight: 600; font-size: 16px; }
  .cx-dd span { font-size: 14px; color: var(--sub); }
  .cx-nav-right { display: flex; align-items: center; gap: 18px; font-size: 16px; }
  .cx-support { display: inline-flex; align-items: center; gap: 6px; font-weight: 500; }
  .cx-divider { width: 1px; height: 22px; background: var(--nav-line2); }
  .cx-langs { display: flex; align-items: center; gap: 2px; }
  .cx-lang { min-width: 40px; min-height: 44px; padding: 0 6px; background: transparent; border: 0; color: var(--lang-off); font: 600 16px 'Poppins', sans-serif; cursor: pointer; }
  .cx-lang[aria-pressed="true"] { color: var(--lang-on); }
  .cx-theme { display: flex; align-items: center; padding: 3px; border-radius: 99px; border: 1px solid var(--nav-line2); }
  .cx-theme-btn { width: 38px; height: 38px; display: grid; place-items: center; border: 0; border-radius: 99px; cursor: pointer; }
  .cx-theme-btn[data-theme-set="light"] { background: var(--seg-light-bg); color: var(--seg-light-icon); }
  .cx-theme-btn[data-theme-set="dark"]  { background: var(--seg-dark-bg);  color: var(--seg-dark-icon); }
  .cx-demo { display: inline-flex; align-items: center; flex-shrink: 0; white-space: nowrap; min-height: 44px; padding: 0 18px; border-radius: 8px; border: 1px solid var(--demo-line); color: var(--demo-text) !important; text-decoration: none; font-weight: 600; font-size: 15px; }
  .cx-demo:hover { filter: brightness(1.15); }
  
  /* Hero content */
  .cx-main { flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 40px 16px 72px; text-align: center; }
  .cx-headline { margin: 0; max-width: 980px; font-weight: 700; font-size: clamp(36px, 5.4vw, 72px); line-height: 1.1; letter-spacing: -.03em; color: var(--head); text-shadow: var(--head-glow); }
  .cx-sub { margin: 18px 0 0; max-width: 860px; font-size: clamp(17px, 1.6vw, 20px); line-height: 1.6; color: var(--sub); text-wrap: balance; }
  .cx-form { width: 100%; max-width: 760px; margin-top: 36px; text-align: left; }
  .cx-halo { padding: 10px; border-radius: 28px; background: var(--halo); border: 1px solid var(--halo-border); box-shadow: 0 24px 60px rgba(0,0,0,.14); }
  .cx-askwrap { border-radius: 20px; background: #FFFFFF; padding: 20px 20px 16px; }
  .cx-askwrap:focus-within { box-shadow: 0 0 0 3px rgba(47,143,107,.45); }
  .cx-sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
  .cx-ask { width: 100%; border: 0; resize: none; font: 500 18px/1.5 'Poppins', 'Noto Sans KR', sans-serif; color: #10241F; background: transparent; }
  .cx-ask:focus { outline: none; }
  .cx-askbar { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-top: 8px; flex-wrap: wrap; }
  .cx-hint { display: flex; align-items: center; gap: 8px; font-size: 13px; color: #55635D; }
  .cx-cta { display: inline-flex; align-items: center; gap: 8px; min-height: 44px; padding: 0 22px; border: 0; border-radius: 12px; background: var(--accent); color: var(--accent-text); font: 700 16px 'Poppins', 'Noto Sans KR', sans-serif; cursor: pointer; }
  .cx-cta:hover { filter: brightness(.92); }
  
  /* Result */
  .cx-result { width: 100%; max-width: 760px; margin-top: 28px; text-align: left; display: flex; flex-direction: column; gap: 12px; }
  .cx-result[hidden] { display: none; }
  .cx-asked { font-size: 14px; color: var(--sub); }
  .cx-asked-q { color: var(--head); }
  .cx-result-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 12px; }
  .cx-rcard { padding: 20px; border-radius: 18px; }
  .cx-rcard[hidden] { display: none; }
  .cx-rcard p { margin: 8px 0 14px; font-size: 15px; line-height: 1.6; }
  .cx-rtag { font-size: 12px; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; }
  .cx-rtitle { margin-top: 6px; font-weight: 600; font-size: 22px; }
  .cx-rbtn { display: inline-flex; align-items: center; min-height: 44px; padding: 0 18px; border-radius: 12px; text-decoration: none; font-weight: 700; font-size: 15px; }
  .cx-rcard-aip { background: var(--aip-bg); border: 1px solid var(--aip-line); box-shadow: 0 14px 34px rgba(0,0,0,.10); }
  .cx-rcard-aip .cx-rtag { color: var(--aip-tag); }
  .cx-rcard-aip .cx-rtitle { color: var(--head); }
  .cx-rcard-aip p { color: var(--sub); }
  .cx-rcard-aip .cx-rbtn { background: var(--aip-btn); color: var(--aip-btn-text) !important; }
  .cx-rcard-qub { background: #163E36; color: #F1F7F4; border: 1px solid rgba(143,224,180,.2); box-shadow: 0 14px 34px rgba(0,0,0,.18); }
  .cx-rcard-qub .cx-rtag { color: #CFEFE0; }
  .cx-rcard-qub p { color: #E3F2EA; }
  .cx-rcard-qub .cx-rbtn { background: #FFFFFF; color: #12402E !important; }
  
  .cx-strip { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px 28px; margin-top: 44px; font-size: 14px; color: var(--sub); }
  .cx-strip b { color: var(--head); }
  .cx-sep { opacity: .4; }
  
  /* Focus */
  .cx-hero button:focus-visible, .cx-hero a:focus-visible { outline: 2px solid #2F8F6B; outline-offset: 2px; }
  
  /* Responsive */
  @media (max-width: 1080px) { .cx-support { display: none !important; } }
  @media (max-width: 900px)  { .cx-card.hm { display: none; } .cx-links { display: none; } }
  @media (max-width: 720px)  { .cx-card { transform: translate(-50%,-50%) scale(.6); } .cx-divider { display: none; } .cx-nav-right { gap: 8px; } }
  @media (prefers-reduced-motion: reduce) { .cx-card img { animation: none; } .cx-card { transition: none; } }
  
  /* ---------- ghép hero của gói vào site ---------- */
  .cx-hero { isolation: isolate; }
  .cx-hero img { max-width: none; }
  .cx-main h1 { font-family: inherit; }
  .cx-result[hidden], .cx-rcard[hidden], .cx-dd[hidden] { display: none; }
  .cx-dd::before { content: ""; position: absolute; left: 0; right: 0; top: -12px; height: 12px; }

  /* cx1: menu của gói thay header site khi đang ở màn đầu (desktop). Điện thoại: menu gói ẩn, dùng header site. */
  @media (min-width: 901px) { .site-header.over-cx.is-over:not(.menu-open) { display: none; } }
  @media (max-width: 900px) { .cx-nav { display: none; } }
  .site-header.over-cx.is-over:not(.menu-open) { position: relative; background: var(--paper); border-bottom-color: var(--line); }
  .site-header.over-cx.is-over:not(.menu-open) .nav__logo img { filter: none; }
  .site-header.over-cx.is-over:not(.menu-open) .nav__burger { color: var(--ink); }
  .site-header.over-cx.is-over:not(.menu-open) .nav__cta .btn { background: var(--green); color: var(--on-dark); border: 0; }
  .cx-nav-in { padding-inline: clamp(24px, 5vw, 100px); max-width: none; }
  .cx-links { font-size: clamp(16px, 1.2vw, 21px); }
  /* ngôn ngữ đang chọn: viên nền đặc để nhìn ra ngay */
  .cx-lang { min-height: 32px; padding: 0 10px; border-radius: 999px; transition: background .2s, color .2s; }
  .cx-lang[aria-pressed="true"] { background: var(--accent); color: var(--accent-text); }
  .cx-langs { gap: 4px; }
  /* headline: cân hai dòng; cả ba ngôn ngữ dùng cùng cỡ chữ và độ rộng như bản EN (user 14/10/2026: VN/KO từng to hơn một bậc) */
  .cx-headline { text-wrap: balance; }
  .cx-hero .cx-headline { font-size: clamp(30px, 4.5vw, 58px); max-width: 1120px; }


  :root[data-theme="dark"] {
    --green: #7FC9A6; --green-deep: #113427; --green-hover: #9ADBBC;
    --tint: #173029; --tint-2: #13221C;
    --ink: #EEF4F0; --ink-2: #C3D0C8; --ink-3: #8FA096;
    --line: #233129; --dash: #3C4F45;
    --paper: #0B1512; --paper-2: #101B17;
    --need: #E2B86C; --need-soft: #3B2F15;
    --shadow-shot: 0 40px 80px -36px rgba(0,0,0,.7), 0 10px 24px -14px rgba(0,0,0,.5);
    --shadow-card: 0 14px 34px -22px rgba(0,0,0,.6);
    color-scheme: dark;
  }
  [data-theme="dark"] body { background: var(--paper); }
  /* header thường (ngoài hero) */
  [data-theme="dark"] .site-header { background: rgba(11,21,18,.9); border-bottom-color: var(--line); }
  [data-theme="dark"] .site-header.is-scrolled { box-shadow: 0 8px 24px -18px rgba(0,0,0,.7); }
  [data-theme="dark"] .nav__logo img { filter: brightness(0) invert(1); }
  /* nút chính: nền xanh sáng nên chữ phải tối */
  [data-theme="dark"] .btn--primary, [data-theme="dark"] .btn--primary:hover { color: #0B1512; }
  [data-theme="dark"] .lang button[aria-pressed="true"], [data-theme="dark"] .filters button[aria-pressed="true"] { color: #0B1512; }
  [data-theme="dark"] .btn--white { background: #EEF4F0; color: #12382B; }
  [data-theme="dark"] .btn--white:hover { background: #ffffff; color: #12382B; }
  /* các khối màu thương hiệu giữ nguyên xanh đậm, không đổi theo biến --green đã làm sáng */
  [data-theme="dark"] .section--green { background: #1C523E; }
  [data-theme="dark"] .section--deep { border-block: 1px solid rgba(255,255,255,.06); }
  [data-theme="dark"] .footer { background: #070D0B; border-top: 1px solid var(--line); }
  [data-theme="dark"] .matrix th { border-bottom-color: var(--line); }
  [data-theme="dark"] .preview-bar { background: #1A2621; }
  /* ảnh chụp màn hình sáng: dịu bớt để không chói trên nền tối */
  [data-theme="dark"] img[src*="shot-"] { filter: brightness(.9); }
  [data-theme="dark"] .form__done { color: var(--green); }
  [data-theme="dark"] .lang--dark button[aria-pressed="true"] { color: #0C100E; }
  /* chuyển mượt khi bấm nút */
  body, .site-header, .card, .form, .section, .footer { transition: background-color .25s var(--ease), border-color .25s var(--ease), color .25s var(--ease); }
  @media (prefers-reduced-motion: reduce) { body, .site-header, .card, .form, .section, .footer { transition: none; } }

  .theme-btn { width: 36px; height: 36px; display: inline-flex; align-items: center; justify-content: center; border: 1px solid var(--line); border-radius: 999px; background: transparent; color: var(--ink-2); cursor: pointer; flex: none; transition: color .2s, border-color .2s, background .2s; }
  .theme-btn:hover { color: var(--ink); border-color: var(--dash); }
  .theme-btn .icon { width: 17px; height: 17px; }
  .theme-btn .th-moon { display: none; }
  [data-theme="dark"] .theme-btn .th-sun { display: none; }
  [data-theme="dark"] .theme-btn .th-moon { display: block; }
  /* trên hero: viền trắng mờ như VN | EN */
  .site-header.is-over:not(.menu-open) .theme-btn { color: #eef5ef; border-color: rgba(255,255,255,.45); }
  .site-header.is-over:not(.menu-open) .theme-btn:hover { color: #ffffff; border-color: rgba(255,255,255,.8); background: rgba(255,255,255,.08); }
  @media (max-width: 1100px) { .theme-btn { width: 40px; height: 40px; } }

  /* màn đầu (gói coauths-hero) theo chế độ của trang; nút sáng/tối của gói giữ nguyên kiểu */
  .site-header.over-cx.is-over:not(.menu-open) .theme-btn { color: var(--ink-2); border-color: var(--line); }
  [data-theme="dark"] .site-header.over-cx.is-over:not(.menu-open) .nav__cta .btn { color: #0B1512; }

  /* ---------- chỗ nối màn đầu ↔ sản phẩm (P1, 09/10/2026) ---------- */
  /* một font cho cả trang: màn đầu dùng Be Vietnam Pro */
  .cx-hero, .cx-hero .cx-ask, .cx-hero .cx-cta, .cx-hero .cx-lang, .cx-hero .cx-logo { font-family: var(--sans); }
  .cx-hero .cx-headline { font-weight: 600; letter-spacing: -.025em; }
  /* ảnh collage mờ dần trước mép dưới; dải kem → xanh trước khối sản phẩm */
  .cx-bg { -webkit-mask-image: linear-gradient(to bottom, #000 70%, transparent); mask-image: linear-gradient(to bottom, #000 70%, transparent); }
  .join-band { height: 100px; background: linear-gradient(#F5F6F0, var(--green-deep)); }
  [data-theme="dark"] .join-band { background: linear-gradient(#07140f, var(--green-deep)); }
  /* chip sản phẩm trong hero: bấm cuộn tới đúng thẻ */
  .cx-strip--chips { gap: 10px; }
  .cx-chip { display: inline-flex; align-items: center; gap: 4px; height: 36px; padding: 0 14px; border: 1px solid var(--nav-line2); border-radius: 999px; color: var(--sub) !important; text-decoration: none; font-size: 14px; transition: border-color .2s, background .2s; }
  .cx-chip b { color: var(--head); }
  .cx-chip:hover { border-color: var(--head); background: rgba(127,127,127,.08); }
  /* dải tin cậy */
  .trust { background: #F5F6F0; border-top: 1px solid rgba(22,62,54,.08); }
  [data-theme="dark"] .trust { background: #07140f; border-top-color: rgba(190,230,210,.08); }
  .trust__in { display: flex; align-items: center; gap: 28px; padding-block: 16px; flex-wrap: wrap; }
  .trust__text { margin: 0; font-size: 14px; color: var(--ink-2); white-space: nowrap; display: inline-flex; align-items: center; gap: 8px; }
  .trust__text b { font-size: 16px; }
  .trust__logos { display: flex; gap: 6px; flex: 1; justify-content: flex-end; flex-wrap: wrap; }
  .trust__logos .logo-cell { height: 40px; padding: 0 10px; background: transparent; border: 0; }
  .trust__logos img { max-height: 22px; opacity: .85; }
  /* gói coauths-cap-nhat (10/10/2026): bốn logo cao 60px dàn đều; điện thoại xếp 2 cột x 2 hàng, cao 46px */
  .trust__logos--spread { justify-content: space-around; align-items: center; gap: 16px; padding: 22px 0; }
  .trust__logos--spread .logo-cell { flex: 1 1 0; height: auto; }
  .trust__logos--spread img { height: 60px; max-height: none; width: auto; max-width: 100%; opacity: 1; }
  /* user 10/10/2026: logo đối tác đơn sắc mờ ~65%, rê chuột mới hiện màu thật (đồng bộ với trang) */
  .trust__logos--spread img { filter: grayscale(1); opacity: .65; transition: filter .3s var(--ease), opacity .3s var(--ease); }
  .trust__logos--spread .logo-cell:hover img { filter: none; opacity: 1; }
  [data-theme="dark"] .trust__logos--spread img { filter: invert(1) hue-rotate(180deg) brightness(1.15) grayscale(1); opacity: .7; }
  [data-theme="dark"] .trust__logos--spread .logo-cell:hover img { filter: invert(1) hue-rotate(180deg) brightness(1.15); opacity: 1; }
  @media (max-width: 720px) { .trust__logos { justify-content: flex-start; } .trust__logos--spread { flex-wrap: wrap; row-gap: 14px; gap: 14px 0; padding: 14px 0; } .trust__logos--spread .logo-cell { flex: 0 0 50%; display: flex; justify-content: center; padding: 0 6px; } .trust__logos--spread img { height: 46px; } }
  /* khối sản phẩm: link căn phải theo baseline tiêu đề, khoảng cách tới thẻ đầu thu lại ~40% */
  #ba-san-pham .section-head { margin-bottom: clamp(22px, 2.8vw, 36px); }
  #ba-san-pham .section-head .products__all { justify-self: end; align-self: end; margin-bottom: 6px; }
  #ba-san-pham .section-head + .prow { padding-top: 32px; }
  @media (max-width: 760px) { #ba-san-pham .section-head .products__all { justify-self: start; } }
  /* fade-up khi cuộn */
  .js .fx { opacity: 0; transform: translateY(16px); transition: opacity .3s var(--ease), transform .3s var(--ease); }
  .js .fx.fx-in { opacity: 1; transform: none; }

  /* ---------- hiệu ứng màn đầu (E9 rút gọn) ---------- */
  .cx-main > * { opacity: 0; transform: translateY(18px); animation: cxUp .8s cubic-bezier(.2,.7,.2,1) forwards; }
  .cx-main > :nth-child(1) { animation-delay: .15s; } .cx-main > :nth-child(2) { animation-delay: .3s; } .cx-main > :nth-child(3) { animation-delay: .45s; }
  .cx-main > :nth-child(4) { animation-delay: .6s; } .cx-main > :nth-child(5) { animation-delay: .75s; }
  @keyframes cxUp { to { opacity: 1; transform: none; } }
  .cx-card { animation: cxCardIn 1.2s cubic-bezier(.2,.7,.2,1) both; }
  .cx-card:nth-child(3n+1) { animation-delay: .1s; } .cx-card:nth-child(3n+2) { animation-delay: .35s; } .cx-card:nth-child(3n) { animation-delay: .6s; }
  @keyframes cxCardIn { from { opacity: 0; } to { opacity: 1; } }
  /* ảnh nền: bớt mờ, viền mảnh, bo đều */
  .cx-card img { border-radius: 12px; border: 1px solid rgba(255,255,255,.35); box-shadow: 0 16px 36px rgba(0,0,0,.14); }
  [data-theme="dark"] .cx-card img { border-color: rgba(255,255,255,.08); box-shadow: 0 16px 36px rgba(0,0,0,.4); }
  .cx-card.near img { filter: blur(.4px); opacity: .9; } .cx-card.mid img { filter: blur(1.4px); opacity: .7; } .cx-card.far img { filter: blur(2.6px); opacity: .5; }
  /* tiêu đề: từng chữ trượt lên từ dưới một đường cắt */
  .cx-headline { opacity: 1; transform: none; animation: none; }
  /* khung cắt nới lên trên .3em để dấu tiếng Việt (ẩ, ầ, ễ…) không bị cắt; margin âm bù lại nên bố cục không đổi */
  .cx-headline .w { display: inline-block; overflow: hidden; vertical-align: bottom; padding: .3em 0 .06em; margin: -.3em 0 -.06em; }
  .cx-headline .w > span { display: inline-block; transform: translateY(110%); animation: cxWord .9s cubic-bezier(.2,.7,.2,1) forwards; }
  @keyframes cxWord { to { transform: none; } }
  /* ô hỏi đáp nổi nhẹ khi rê chuột */
  .cx-halo { transition: transform .5s cubic-bezier(.2,.7,.2,1), box-shadow .5s; }
  .cx-halo:hover { transform: translateY(-2px); box-shadow: 0 30px 70px rgba(0,0,0,.16); }
  /* vệt sáng mảnh quét chéo qua collage, mỗi 14 giây một lần */
  .cx-sheen { position: absolute; inset: 0; z-index: 1; pointer-events: none; mix-blend-mode: soft-light;
    background: linear-gradient(108deg, transparent 44%, rgba(255,255,255,.75) 50%, transparent 56%); background-size: 320% 100%; background-position: 84% 0;
    animation: cxSheen 14s ease-in-out 2s infinite; }
  [data-theme="dark"] .cx-sheen { mix-blend-mode: screen; background-image: linear-gradient(108deg, transparent 44%, rgba(154,219,188,.22) 50%, transparent 56%); }
  /* 84% → 16%: dải bắt đầu ngay sát mép trái và kết thúc ngay sau mép phải, nên toàn bộ thời gian đều nhìn thấy */
  @keyframes cxSheenOnce { from { background-position: 84% 0; } to { background-position: 16% 0; } }
  @keyframes cxSheen { 0% { background-position: 84% 0; } 19% { background-position: 16% 0; } 100% { background-position: 16% 0; } }
  .cx-scrim { background: var(--scrim), radial-gradient(ellipse 85% 75% at 50% 50%, transparent 60%, rgba(6,20,15,.12) 100%); }
  @media (prefers-reduced-motion: reduce) {
    .cx-hero *, .cx-sheen { animation: none !important; transition: none !important; }
    .cx-main > * { opacity: 1 !important; transform: none !important; }
    .cx-headline .w > span { transform: none !important; }
  }

  /* ---------- ba thẻ sản phẩm rút gọn (C3, 10/10/2026) ---------- */
  .pcards { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
  .pcard { display: flex; flex-direction: column; gap: 12px; padding: 26px 26px 24px; border-radius: 12px; text-decoration: none;
    transition: transform .25s var(--ease), background .25s, border-color .25s, box-shadow .25s; }
  .pcard:hover { transform: translateY(-3px); }
  .pcard h3 { font-size: 22px; margin: 0; }
  .pcard p { font-size: 15px; line-height: 1.55; margin: 0; }
  .pcard__chip { font-size: 11px; font-weight: 600; letter-spacing: .08em; text-transform: uppercase; }
  .pcard__more { display: inline-flex; align-items: center; gap: 8px; font-weight: 600; margin-top: auto; padding-top: 6px; }
  .pcard__more .icon { transition: transform .2s var(--ease); }
  .pcard:hover .pcard__more .icon { transform: translateX(3px); }
  .pcard__thumb { display: block; aspect-ratio: 16 / 9; border-radius: 8px; overflow: hidden; margin: -4px 0 6px; border: 1px solid rgba(255,255,255,.12); }
  .pcard__thumb img { width: 100%; height: 100%; object-fit: cover; object-position: top; display: block; }
  #ba-san-pham .section-head { margin-bottom: clamp(24px, 3vw, 40px); }
  @media (max-width: 900px) { .pcards { grid-template-columns: 1fr; } }
  /* chế độ tối: khối xanh đậm, thẻ trong suốt */
  [data-theme="dark"] #ba-san-pham .pcard { background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.12); color: var(--on-dark); }
  [data-theme="dark"] #ba-san-pham .pcard:hover { background: rgba(255,255,255,.1); border-color: rgba(255,255,255,.24); color: var(--on-dark); }
  [data-theme="dark"] #ba-san-pham .pcard h3, [data-theme="dark"] #ba-san-pham .pcard__more { color: var(--on-dark); }
  [data-theme="dark"] #ba-san-pham .pcard p { color: var(--on-dark-2); }
  [data-theme="dark"] #ba-san-pham .pcard__chip--live { color: var(--on-dark-3); }
  [data-theme="dark"] #ba-san-pham .pcard__chip--soon { color: #D9BC85; }
  /* chế độ sáng: khối nền sáng, thẻ trắng viền mảnh; dải kem → xanh không còn cần */
  :root:not([data-theme="dark"]) #ba-san-pham { background: var(--paper-2); color: var(--ink); }
  :root:not([data-theme="dark"]) #ba-san-pham h2 { color: var(--ink); }
  :root:not([data-theme="dark"]) #ba-san-pham .eyebrow { color: var(--green) !important; }
  :root:not([data-theme="dark"]) #ba-san-pham .products__all { color: var(--green); }
  :root:not([data-theme="dark"]) #ba-san-pham .products__all:hover { color: var(--green-hover); }
  :root:not([data-theme="dark"]) .pcard { background: var(--paper); border: 1px solid var(--line); color: var(--ink); box-shadow: 0 1px 0 rgba(12,16,14,.02); }
  :root:not([data-theme="dark"]) .pcard:hover { border-color: var(--dash); box-shadow: var(--shadow-card); color: var(--ink); }
  :root:not([data-theme="dark"]) .pcard h3, :root:not([data-theme="dark"]) .pcard__more { color: var(--ink); }
  :root:not([data-theme="dark"]) .pcard:hover .pcard__more { color: var(--green); }
  :root:not([data-theme="dark"]) .pcard p { color: var(--ink-2); }
  :root:not([data-theme="dark"]) .pcard__chip--live { color: var(--green); }
  :root:not([data-theme="dark"]) .pcard__chip--soon { color: var(--need); }
  :root:not([data-theme="dark"]) .pcard__thumb { border-color: var(--line); }
  :root:not([data-theme="dark"]) .join-band { display: none; }
  :root:not([data-theme="dark"]) .trust { border-bottom: 1px solid rgba(22,62,54,.08); }

  /* ---------- ba thẻ sản phẩm kèm khung demo động (gói mockup 10/10/2026) ---------- */
  .pcards--demo .pcard { padding: 0; gap: 0; overflow: hidden; border-radius: 14px; }
  .pcard__body { display: flex; flex-direction: column; gap: 10px; padding: 18px 20px 22px; flex: 1; }
  .pcard__head { display: flex; align-items: center; gap: 10px; }
  .pcard__head h3 { font-size: 18px; margin: 0; }
  .pcard__ico { display: grid; place-items: center; flex: none; width: 26px; height: 26px; border-radius: 7px; font-size: 11px; font-weight: 700; letter-spacing: 0; }
  .pcard__ico svg { width: 14px; height: 14px; }
  .pcard__cat { margin-left: auto; font-size: 10px; letter-spacing: .14em; text-transform: uppercase; text-align: right; }
  .pcards--demo .pcard p { font-size: 14px; line-height: 1.6; }
  .pcards--demo .pcard__more { font-size: 14px; padding-top: 2px; }
  .pd-mono { font-family: 'IBM Plex Mono', ui-monospace, SFMono-Regular, Menlo, monospace; }
  /* khung demo: biến màu riêng, hai bộ sáng/tối */
  .pcard__demo { --d-bg: #0a1813; --d-card: #12251d; --d-card2: #132a21; --d-text: #e9f2ec; --d-muted: #a9bfb4; --d-faint: #6f877b; --d-acc: #8fe0b4; --d-acc-ink: #0b2018;
    --d-line: rgba(190,230,210,.08); --d-amber: #f2c879; --d-blue: #9cc3ff; --d-violet: #c7b0ff; --d-pink: #f2a6c4; --d-rule: rgba(233,242,236,.10); --d-badge: rgba(7,20,15,.75);
    --d-ev-g: #1d4a36; --d-ev-g-t: #dff3e8; --d-ev-a: #3a3420; --d-ev-a-t: #f6e2b3; --d-ev-b: #22344d; --d-ev-b-t: #d6e5ff; --d-ev-n: #2e5a45; --d-now: #f2a679;
    --d-bar1: #2f7a58; --d-bar2: #3c9469; --d-bar3: #8fe0b4; --d-cs-bg: radial-gradient(circle at 50% 50%, #12291f, #0a1813 70%); --d-cs-dot: rgba(143,224,180,.14);
    position: relative; display: block; aspect-ratio: 16 / 10; overflow: hidden; background: var(--d-bg); border-bottom: 1px solid var(--d-line); color: var(--d-text); font-size: 11px; line-height: 1.35; text-align: left; }
  :root:not([data-theme="dark"]) .pcard__demo { --d-bg: #F1F5F2; --d-card: #FFFFFF; --d-card2: #FFFFFF; --d-text: #0C100E; --d-muted: #5E6862; --d-faint: #8A958F; --d-acc: #1C523E; --d-acc-ink: #FFFFFF;
    --d-line: var(--line); --d-amber: #8A5A12; --d-blue: #2B5FA8; --d-violet: #6B4FC9; --d-pink: #B7407A; --d-rule: rgba(12,16,14,.08); --d-badge: rgba(255,255,255,.85);
    --d-ev-g: #DCEFE4; --d-ev-g-t: #1C523E; --d-ev-a: #FBEFD9; --d-ev-a-t: #8A5A12; --d-ev-b: #E3ECFA; --d-ev-b-t: #2B4F85; --d-ev-n: #C9E7D7; --d-now: #D97A45;
    --d-bar1: #9CC2B1; --d-bar2: #5E9A80; --d-bar3: #1C523E; --d-cs-bg: radial-gradient(circle at 50% 50%, #E9F0EC, #F1F5F2 70%); --d-cs-dot: rgba(28,82,62,.16); }
  .pcard__demo .pd-mono { letter-spacing: .12em; text-transform: uppercase; font-size: 9px; }
  .pcard__demo b { font-weight: 600; }
  .pcard__demo .c-acc { color: var(--d-acc); } .pcard__demo .c-amber { color: var(--d-amber); } .pcard__demo .c-blue { color: var(--d-blue); } .pcard__demo .c-violet { color: var(--d-violet); } .pcard__demo .c-pink { color: var(--d-pink); }
  .pd-badge { position: absolute; top: 10px; right: 10px; display: inline-flex; align-items: center; gap: 5px; padding: 4px 8px; border-radius: 999px; background: var(--d-badge); color: var(--d-muted); font-family: 'IBM Plex Mono', ui-monospace, monospace; font-size: 9px; letter-spacing: .1em; text-transform: uppercase; }
  .pd-badge > i { width: 6px; height: 6px; border-radius: 50%; background: var(--d-acc); }
  .pd-track { position: absolute; left: 0; right: 0; bottom: 0; height: 3px; background: var(--d-rule); }
  .pd-progress { display: block; height: 100%; background: var(--d-acc); transform-origin: left center; animation: pdProg 8s linear infinite; }
  .pd-blink { animation: pdBlink 1.6s ease-in-out infinite; }
  /* AIP */
  .pd-aip__in { position: absolute; inset: 14px 14px 22px; display: flex; flex-direction: column; gap: 10px; }
  .pd-search { display: flex; align-items: center; gap: 8px; padding: 8px 10px; border-radius: 8px; background: var(--d-card2); border: 1px solid color-mix(in srgb, var(--d-acc) 18%, transparent); font-family: 'IBM Plex Mono', ui-monospace, monospace; font-size: 11px; color: var(--d-text); }
  .pd-search svg { width: 12px; height: 12px; flex: none; color: var(--d-acc); }
  .pd-type { display: inline-block; overflow: hidden; white-space: nowrap; vertical-align: bottom; width: 0; animation: pdType 8s steps(26, end) infinite; }
  .pd-caret { color: var(--d-acc); font-style: normal; }
  .pd-aip__grid { flex: 1; min-height: 0; display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr); gap: 10px; }
  .pd-feed { position: relative; overflow: hidden; border-radius: 8px; }
  .pd-feed__roll { display: flex; flex-direction: column; gap: 8px; animation: pdFeed 8s linear infinite; }
  .pd-feed__item { display: flex; flex-direction: column; gap: 5px; padding: 8px 9px; border-radius: 7px; background: var(--d-card); }
  .pd-feed__item > span { font-size: 11px; color: var(--d-text); }
  .pd-feed__item > i { display: block; height: 4px; border-radius: 2px; background: var(--d-rule); }
  .pd-stat { display: flex; flex-direction: column; gap: 6px; min-width: 0; padding: 9px; border-radius: 8px; background: var(--d-card); }
  .pd-stat > b { color: var(--d-muted); font-weight: 500; }
  .pd-stat strong { font-size: 18px; font-weight: 600; letter-spacing: -.02em; line-height: 1.1; color: var(--d-text); }
  .pd-stat small { font-size: 9px; color: var(--d-muted); margin-top: -4px; }
  .pd-bars { flex: 1; display: grid; grid-template-columns: repeat(8, minmax(0, 1fr)); align-items: end; gap: 4px; min-height: 40px; }
  .pd-bar { display: block; border-radius: 2px 2px 0 0; transform-origin: bottom center; animation: pdBar 8s cubic-bezier(.2,.8,.2,1) infinite; }
  .pd-bar--1 { background: var(--d-bar1); } .pd-bar--2 { background: var(--d-bar2); } .pd-bar--3 { background: var(--d-bar3); }
  /* Qub-X */
  .pd-qx__in { position: absolute; inset: 14px 14px 22px; display: grid; grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr); gap: 10px; }
  .pd-cal { position: relative; display: flex; flex-direction: column; gap: 6px; padding: 8px; border-radius: 8px; background: var(--d-card); overflow: hidden; }
  .pd-cal__head { display: grid; grid-template-columns: 26px repeat(3, minmax(0, 1fr)); gap: 4px; font-size: 8px; letter-spacing: .08em; color: var(--d-muted); }
  .pd-cal__grid { flex: 1; display: grid; grid-template-columns: 26px repeat(3, minmax(0, 1fr)); grid-template-rows: repeat(5, minmax(0, 1fr)); gap: 4px; font-size: 9px; }
  .pcard__demo .pd-cal__grid > i { grid-column: 1; font-style: normal; font-size: 8px; letter-spacing: 0; text-transform: none; color: var(--d-faint); }
  .pd-ev { display: block; padding: 4px 5px; border-radius: 5px; font-size: 9px; line-height: 1.3; overflow: hidden; }
  .pd-ev--g { background: var(--d-ev-g); color: var(--d-ev-g-t); } .pd-ev--a { background: var(--d-ev-a); color: var(--d-ev-a-t); } .pd-ev--b { background: var(--d-ev-b); color: var(--d-ev-b-t); }
  .pd-ev--new { background: var(--d-ev-n); color: var(--d-text); border: 1px solid var(--d-acc); }
  .pd-now { position: absolute; left: 34px; right: 8px; height: 1px; background: var(--d-now); animation: pdNow 8s linear infinite; }
  .pd-pop { opacity: 0; animation: pdPop 8s ease-out infinite; }
  .pd-inbox { display: flex; flex-direction: column; gap: 6px; min-width: 0; padding-top: 20px; } /* chừa chỗ cho huy hiệu DEMO góc phải */
  .pd-inbox > b { color: var(--d-muted); font-weight: 500; }
  .pd-msg { display: flex; flex-direction: column; gap: 3px; padding: 7px 8px; border-radius: 8px; background: var(--d-card); font-size: 10px; }
  .pd-msg b { font-size: 8px; letter-spacing: .04em; }
  .pd-done { margin-top: auto; display: flex; align-items: center; gap: 6px; padding: 7px 8px; border-radius: 8px; background: var(--d-acc); color: var(--d-acc-ink); font-size: 10px; font-weight: 600; }
  .pd-done svg, .pd-cs__b svg { width: 11px; height: 11px; flex: none; }
  /* Cosmos */
  .pd-cs { background: var(--d-cs-bg); }
  .pd-cs__dots { position: absolute; inset: 0; background-image: radial-gradient(var(--d-cs-dot) 1px, transparent 1px); background-size: 14px 14px; }
  .pd-cs__frame { position: absolute; left: 50%; top: 46%; transform: translate(-50%, -50%); width: 42%; height: 72%; }
  .pd-corner { position: absolute; width: 18px; height: 18px; border: 0 solid var(--d-acc); }
  .pd-corner.tl { left: 0; top: 0; border-left-width: 2px; border-top-width: 2px; } .pd-corner.tr { right: 0; top: 0; border-right-width: 2px; border-top-width: 2px; }
  .pd-corner.bl { left: 0; bottom: 0; border-left-width: 2px; border-bottom-width: 2px; } .pd-corner.br { right: 0; bottom: 0; border-right-width: 2px; border-bottom-width: 2px; }
  /* ống tiêm (user 15/10/2026: hình cũ giống chai mỹ phẩm; cùng ngày: kim CHĨA LÊN): kim trên, đốc kim, vành, thân có thuốc xanh đậm + vạch chia, trục đẩy và nắp đẩy ở dưới */
  .pd-syr { position: absolute; left: 50%; top: 4%; transform: translateX(-50%); width: 44%; height: 92%; }
  .pd-syr > i { position: absolute; left: 50%; transform: translateX(-50%); display: block; }
  .pd-syr .needle { top: 0; width: 2px; height: 18%; background: #8fa399; }
  .pd-syr .hub { top: 18%; width: 18%; height: 7%; background: linear-gradient(90deg, #a9bdb2, #d4e0d9 50%, #9fb3a8); border-radius: 3px 3px 0 0; }
  .pd-syr .barrel { top: 25%; width: 46%; height: 56%; border-radius: 3px 3px 5px 5px; background: linear-gradient(90deg, rgba(207,224,215,.85), rgba(242,248,244,.95) 45%, rgba(185,203,193,.85)); border: 1px solid rgba(13,29,23,.22); box-sizing: border-box; overflow: hidden; }
  .pd-syr .barrel::after { content: ''; position: absolute; left: 10%; top: 8%; bottom: 8%; width: 32%; background: repeating-linear-gradient(to bottom, rgba(13,29,23,.45) 0 2px, transparent 2px 14%); }
  .pd-syr .liquid { position: absolute; left: 0; right: 0; top: 0; height: 54%; background: #1d4a36; }
  .pd-syr .seal { position: absolute; left: 0; right: 0; top: 54%; height: 6%; background: #0d1d17; opacity: .85; }
  .pd-syr .flange { top: 80.5%; width: 74%; height: 3.5%; background: #c9d6cf; border-radius: 3px; }
  .pd-syr .rod { top: 82%; width: 13%; height: 14%; background: linear-gradient(90deg, #b9cbc1, #dfe9e3 50%, #a9bdb2); border-radius: 2px; }
  .pd-syr .thumb { top: 95.5%; width: 64%; height: 4.5%; background: #c9d6cf; border-radius: 3px; }
  .pd-dot { position: absolute; width: 7px; height: 7px; border-radius: 50%; background: var(--d-acc); box-shadow: 0 0 0 4px color-mix(in srgb, var(--d-acc) 18%, transparent); animation: pdBlink 1.2s ease-in-out infinite; }
  .pd-scan { position: absolute; left: -6%; right: -6%; height: 2px; background: var(--d-acc); box-shadow: 0 0 14px 3px color-mix(in srgb, var(--d-acc) 55%, transparent); animation: pdScan 2.6s ease-in-out infinite alternate; }
  .pd-cs__pill { position: absolute; left: 50%; bottom: 18px; transform: translateX(-50%); height: 28px; width: 220px; max-width: 80%; }
  .pd-cs__a, .pd-cs__b { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; gap: 6px; border-radius: 999px; white-space: nowrap; }
  .pcard__demo .pd-cs__a { background: var(--d-badge); border: 1px solid color-mix(in srgb, var(--d-acc) 30%, transparent); font-size: 10px; letter-spacing: .08em; text-transform: none; color: var(--d-muted); animation: pdCsA 8s ease infinite; }
  .pd-cs__a > i { width: 6px; height: 6px; border-radius: 50%; background: var(--d-amber); }
  .pd-cs__b { background: var(--d-acc); color: var(--d-acc-ink); font-size: 11px; font-weight: 600; opacity: 0; animation: pdCsB 8s ease infinite; }
  .pd-soon { position: absolute; top: 10px; left: 10px; padding: 4px 9px; border-radius: 999px; background: var(--d-ev-a); color: var(--d-ev-a-t); letter-spacing: .1em; }
  .pcard__cat--soon { color: var(--d-amber, #E2B86C); }
  /* màu thân thẻ: ô biểu tượng và nhãn nhóm theo hai chế độ */
  [data-theme="dark"] .pcard__ico { background: #1d4a36; color: #8fe0b4; }
  [data-theme="dark"] .pcard__cat { color: var(--on-dark-3); }
  [data-theme="dark"] .pcard__cat--soon { color: #f2c879; }
  :root:not([data-theme="dark"]) .pcard__ico { background: var(--tint); color: var(--green); }
  :root:not([data-theme="dark"]) .pcard__cat { color: var(--ink-3); }
  :root:not([data-theme="dark"]) .pcard__cat--soon { color: var(--need); }
  @keyframes pdProg { from { transform: scaleX(0); } to { transform: scaleX(1); } }
  @keyframes pdBlink { 0%, 100% { opacity: 1; } 50% { opacity: .25; } }
  @keyframes pdType { 0% { width: 0; } 30% { width: 26ch; } 90% { width: 26ch; } 100% { width: 0; } }
  @keyframes pdFeed { from { transform: translateY(0); } to { transform: translateY(-50%); } }
  @keyframes pdBar { 0% { transform: scaleY(.05); } 25% { transform: scaleY(1); } 85% { transform: scaleY(1); } 100% { transform: scaleY(.05); } }
  @keyframes pdPop { 0% { opacity: 0; transform: translateY(8px) scale(.96); } 6% { opacity: 1; transform: none; } 78% { opacity: 1; transform: none; } 86% { opacity: 0; } 100% { opacity: 0; } }
  @keyframes pdNow { from { top: 18%; } to { top: 92%; } }
  @keyframes pdScan { from { top: 14%; } to { top: 82%; } }
  @keyframes pdCsA { 0%, 55% { opacity: 1; } 60%, 100% { opacity: 0; } }
  @keyframes pdCsB { 0%, 58% { opacity: 0; transform: translateY(6px); } 64%, 94% { opacity: 1; transform: none; } 100% { opacity: 0; } }
  @media (prefers-reduced-motion: reduce) {
    .pd-progress, .pd-feed__roll, .pd-bar, .pd-now, .pd-scan, .pd-blink, .pd-dot { animation: none; }
    .pd-type { animation: none; width: 26ch; }
    .pd-pop { animation: none; opacity: 1; }
    .pd-cs__a { animation: none; opacity: 0; } .pd-cs__b { animation: none; opacity: 1; }
  }
  @media (max-width: 420px) { .pd-cs__pill { width: 190px; } .pd-inbox > .pd-msg:nth-of-type(3) { display: none; } } /* màn hẹp: bớt một tin để còn chỗ cho "Đã xếp lịch" */

  /* ---------- đầu trang Về Coauths: băng video nửa màn hình, chữ đè lên ---------- */
  .ahero { position: relative; isolation: isolate; min-height: 50vh; min-height: 50svh; display: flex; align-items: center; overflow: hidden; background: #061c17; color: #ffffff; }
  .ahero__video { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: center; z-index: -2; pointer-events: none; }
  .ahero__shade { position: absolute; inset: 0; z-index: -1; pointer-events: none;
    background: linear-gradient(90deg, rgba(4,18,13,.84) 0%, rgba(4,18,13,.62) 48%, rgba(4,18,13,.22) 100%), linear-gradient(180deg, rgba(4,18,13,.25) 0%, transparent 30%, transparent 70%, rgba(4,18,13,.35) 100%); }
  .ahero__copy { position: relative; display: flex; flex-direction: column; align-items: flex-start; gap: 18px; padding-block: clamp(44px, 6vw, 72px); }
  .ahero .eyebrow { color: #a9dcc0; }
  .ahero h1 { color: #ffffff; max-width: 17em; font-size: clamp(30px, 3.8vw, 48px); text-shadow: 0 2px 24px rgba(4,18,13,.6); }
  .ahero .lead { color: #d6e6dd; max-width: 46em; font-size: clamp(16px, 1.25vw, 18px); }
  :root:not([data-theme="dark"]) .ahero { border-bottom: 1px solid var(--line); }
  [data-theme="dark"] .ahero__shade { background: linear-gradient(90deg, rgba(4,18,13,.78) 0%, rgba(4,18,13,.5) 48%, rgba(4,18,13,.15) 100%), linear-gradient(180deg, transparent 60%, rgba(11,21,18,.6) 100%); }
  @media (max-width: 640px) { .ahero { min-height: 56vh; } .ahero__video { object-position: 60% center; } }

  /* ---------- "Chúng tôi phục vụ ai": bốn ô video theo chuỗi cung ứng (serve-video) ---------- */
  .wws-head { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 24px 48px; align-items: end; margin-bottom: clamp(24px, 3.5vw, 40px); }
  .wws-title { margin-top: 12px; }
  .wws-lede { margin: 0; color: var(--ink-2); max-width: 46ch; font-size: 16px; line-height: 1.6; }
  .wws-stage { display: flex; gap: 10px; height: clamp(380px, 46vw, 540px); }
  .wws-panel { position: relative; flex: 1 1 0; min-width: 0; border: 0; padding: 0; margin: 0; border-radius: 18px; overflow: hidden; cursor: pointer;
    background: var(--tint); color: #ffffff; text-align: left; font: inherit; transition: flex-grow .8s cubic-bezier(.65,0,.25,1); }
  .wws-panel.is-active { flex-grow: 5; cursor: default; }
  .wws-panel:focus-visible { outline: 3px solid var(--green); outline-offset: 3px; }
  .wws-panel video { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; display: block; transform: scale(1.06); filter: saturate(.55) brightness(.8); transition: transform 1.2s cubic-bezier(.65,0,.25,1), filter .8s; }
  .wws-panel.is-active video { transform: scale(1); filter: none; }
  .wws-panel::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(8,16,20,.35) 0%, rgba(8,16,20,0) 32%, rgba(8,16,20,0) 42%, rgba(8,16,20,.86) 100%); pointer-events: none; }
  .wws-num { position: absolute; z-index: 2; top: 16px; left: 16px; font-size: 12px; font-weight: 600; letter-spacing: .12em; color: #ffffff; opacity: .9; }
  .wws-vlabel { position: absolute; z-index: 2; left: 50%; bottom: 22px; transform: translateX(-50%) rotate(180deg); writing-mode: vertical-rl; font-weight: 600; font-size: 17px; letter-spacing: .01em; white-space: nowrap; transition: opacity .4s; }
  .wws-panel.is-active .wws-vlabel { opacity: 0; }
  .wws-info { position: absolute; z-index: 2; left: clamp(18px, 3vw, 32px); right: clamp(18px, 3vw, 32px); bottom: clamp(22px, 3vw, 34px); opacity: 0; transform: translateY(14px); transition: opacity .45s, transform .6s cubic-bezier(.2,.7,.2,1); }
  .wws-panel.is-active .wws-info { opacity: 1; transform: none; transition-delay: .45s; }
  .wws-alt { display: block; font-size: 12px; font-weight: 600; letter-spacing: .14em; text-transform: uppercase; opacity: .85; margin-bottom: 6px; }
  .wws-name { display: block; font-weight: 600; font-size: clamp(28px, 4vw, 52px); line-height: 1.05; letter-spacing: -.02em; white-space: nowrap; }
  .wws-desc { display: block; max-width: 44ch; margin-top: 12px; font-size: clamp(14px, 1.35vw, 17px); line-height: 1.5; color: rgba(255,255,255,.88); opacity: 0; transform: translateY(8px); transition: opacity .45s, transform .6s cubic-bezier(.2,.7,.2,1); text-wrap: pretty; }
  .wws-panel.is-active .wws-desc { opacity: 1; transform: none; transition-delay: .7s; }
  .wws-bar { position: absolute; z-index: 3; left: 0; right: 0; bottom: 0; height: 3px; background: rgba(255,255,255,.18); opacity: 0; }
  .wws-panel.is-active .wws-bar { opacity: 1; }
  .wws-bar i { display: block; height: 100%; width: 100%; background: #ffffff; transform-origin: left; transform: scaleX(0); }
  .wws-chain { list-style: none; margin: 22px 0 0; padding: 0; display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 10px; }
  .wws-chain button { all: unset; box-sizing: border-box; width: 100%; cursor: pointer; display: flex; align-items: center; gap: 10px; padding: 10px 2px; border-top: 2px solid var(--line); color: var(--ink-3); font-size: 14px; font-weight: 500; transition: color .3s, border-color .3s; }
  .wws-chain button:focus-visible { outline: 2px solid var(--green); outline-offset: 2px; }
  .wws-chain button[aria-current="true"] { color: var(--ink); border-top-color: var(--green); }
  .wws-chain .k { font-size: 11px; font-weight: 600; letter-spacing: .08em; color: var(--green); }
  .wws-chain .arr { margin-left: auto; color: var(--dash); }
  .wws-chain li:last-child .arr { display: none; }
  @media (max-width: 760px) {
    .wws-head { grid-template-columns: minmax(0, 1fr); }
    .wws-stage { flex-direction: column; height: auto; }
    .wws-panel { flex: none; height: 62px; transition: height .7s cubic-bezier(.65,0,.25,1); }
    .wws-panel.is-active { height: min(92vw, 400px); }
    .wws-vlabel { writing-mode: horizontal-tb; transform: translateY(-50%); top: 50%; bottom: auto; left: 64px; }
    .wws-num { top: 50%; transform: translateY(-50%); }
    .wws-panel.is-active .wws-num { top: 16px; transform: none; }
    .wws-name { white-space: normal; }
    .wws-chain { display: none; }
  }
  @media (prefers-reduced-motion: reduce) { .wws-panel, .wws-panel video, .wws-info, .wws-vlabel, .wws-desc { transition: none !important; } }

  /* ---------- Con số nổi bật: khối xanh đậm kèm dải kênh (mockup 10/10/2026) ---------- */
  .stats { padding-block: clamp(48px, 6vw, 80px); }
  .stats__head { display: flex; align-items: center; gap: 12px; margin-bottom: clamp(28px, 3.5vw, 44px); }
  .stats__label { font-size: 12px; font-weight: 600; letter-spacing: .14em; text-transform: uppercase; color: var(--on-dark-3); }
  .stats__grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 32px; }
  .stat2 b { display: block; font-size: clamp(36px, 4vw, 52px); font-weight: 600; letter-spacing: -.03em; line-height: 1; color: var(--on-dark); }
  .stat2 p { margin: 12px 0 0; font-size: 14.5px; line-height: 1.5; color: var(--on-dark-2); max-width: 22em; }
  .stats__channels { margin-top: clamp(28px, 3.5vw, 44px); padding-top: 22px; border-top: 1px solid rgba(255,255,255,.14); display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
  .stats__clabel { font-size: 13.5px; color: var(--on-dark-2); white-space: nowrap; }
  .stats__clist { display: flex; flex-wrap: wrap; gap: 8px; }
  .stats__clist span { display: inline-flex; align-items: center; height: 30px; padding: 0 13px; border: 1px solid rgba(255,255,255,.3); border-radius: 999px; font-size: 13px; font-weight: 500; color: var(--on-dark); }
  @media (max-width: 900px) { .stats__grid { grid-template-columns: 1fr 1fr; gap: 24px; } }
  @media (max-width: 520px) { .stats__grid { grid-template-columns: 1fr; } }

  /* ---------- Những thách thức của ngành: bố cục biên tập (gói mockup 10/10/2026) ---------- */
  .chx2 { --e: cubic-bezier(.2,.75,.2,1); display: grid; grid-template-columns: minmax(0,5fr) minmax(0,7fr); gap: clamp(40px,7vw,112px); align-items: start; }
  .chx2 mark { background: none; color: inherit; }
  .chx2-side { align-self: stretch; }
  .chx2-sticky { position: sticky; top: calc(var(--header-h, 72px) + 56px); }
  .chx2-eyebrow { display: flex; align-items: center; gap: 10px; margin: 0 0 20px; font-size: 12px; font-weight: 600; letter-spacing: .14em; text-transform: uppercase; color: var(--green); }
  .chx2-eyebrow > span:first-child { width: 22px; height: 1px; background: currentColor; flex: none; }
  .chx2 h2 { margin: 0 0 22px; font-size: clamp(32px,3.3vw,46px); line-height: 1.1; letter-spacing: -.025em; font-weight: 600; color: var(--ink); text-wrap: balance; }
  .chx2-lead { margin: 0; max-width: 40ch; font-size: 16px; line-height: 1.7; color: var(--ink-2); }
  .chx2-lead mark { background-image: linear-gradient(transparent 62%, color-mix(in srgb, var(--green) 16%, transparent) 62% 94%, transparent 94%); background-repeat: no-repeat; background-size: 0% 100%; transition: background-size .9s var(--e); }
  .chx2-lead mark:nth-of-type(2) { transition-delay: .25s; } .chx2-lead mark:nth-of-type(3) { transition-delay: .5s; }
  .chx2-side.on .chx2-lead mark { background-size: 100% 100%; }
  .chx2-index { list-style: none; margin: 44px 0 0; padding: 0; border-left: 1px solid var(--line); }
  .chx2-index li { position: relative; display: flex; gap: 14px; padding: 9px 0 9px 18px; font-size: 14px; color: var(--ink-3); cursor: pointer; transition: color .3s; }
  .chx2-index li b { font-weight: 500; }
  .chx2-index li span { font-variant-numeric: tabular-nums; font-size: 12px; padding-top: 2px; color: var(--dash); transition: color .3s; }
  .chx2-index li::before { content: ""; position: absolute; left: -1px; top: 8px; bottom: 8px; width: 2px; background: var(--green); transform: scaleY(0); transition: transform .45s var(--e); }
  .chx2-index li:hover { color: var(--ink-2); }
  .chx2-index li.act { color: var(--ink); }
  .chx2-index li.act span { color: var(--green); }
  .chx2-index li.act::before { transform: scaleY(1); }
  .chx2-item { position: relative; padding: 36px 0 56px; }
  .chx2-item:last-child { padding-bottom: 8px; }
  .chx2-item::before { content: ""; position: absolute; left: 0; right: 0; top: 0; height: 1px; background: var(--line); transform-origin: left; }
  .chx2-item header { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 22px; }
  .chx2-num { font-size: 13px; font-weight: 600; letter-spacing: .04em; color: var(--green); font-variant-numeric: tabular-nums; }
  .chx2-num i { font-style: normal; font-weight: 400; color: var(--dash); margin-left: 2px; }
  .chx2-sol { display: inline-flex; align-items: center; gap: 6px; padding: 5px 5px 5px 14px; border: 1px solid var(--line); border-radius: 999px; font-size: 13px; color: var(--ink-3); text-decoration: none; transition: border-color .3s, background-color .3s; }
  .chx2-sol b { font-weight: 600; color: var(--green); }
  .chx2-sol .ar { display: grid; place-items: center; width: 24px; height: 24px; margin-left: 4px; border-radius: 50%; background: var(--tint); color: var(--green); transition: background-color .3s, color .3s; }
  .chx2-sol svg { width: 13px; height: 13px; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; transition: transform .3s var(--e); }
  .chx2-sol:hover { border-color: color-mix(in srgb, var(--green) 40%, var(--line)); }
  .chx2-sol:hover .ar { background: var(--green); color: #fff; }
  .chx2-sol:hover svg { transform: translate(1.5px,-1.5px); }
  .chx2-item h3 { margin: 0 0 12px; font-size: clamp(22px,2vw,28px); line-height: 1.25; letter-spacing: -.015em; font-weight: 600; color: var(--ink); }
  .chx2-item > p { margin: 0 0 28px; max-width: 58ch; font-size: 15.5px; line-height: 1.7; color: var(--ink-2); }
  /* con số nổi bật gộp vào mục 01 và 02 (gói coauths-cap-nhat, 10/10/2026); khối #con-so riêng đã bỏ */
  .chx2-stats { display: flex; flex-wrap: wrap; gap: 12px 28px; margin: -8px 0 24px; padding: 16px 0 0; border-top: 1px solid var(--line); }
  .chx2-stat { min-width: 120px; }
  .chx2-stat b { display: block; font-family: var(--display); font-weight: 600; font-size: 30px; line-height: 1.1; color: var(--green-deep); letter-spacing: -.01em; }
  [data-theme="dark"] .chx2-stat b { color: var(--green); }
  .chx2-stat span { display: block; font-size: 13px; line-height: 1.4; color: var(--ink-3); margin-top: 4px; max-width: 200px; }
  .chx2-stats .tag { align-self: flex-start; margin-left: auto; }
  /* reveal: khối số là con thứ 4 của article, khung minh hoạ thành thứ 5 */
  .chx2.js .chx2-item > :nth-child(5) { transition-delay: .32s; }
  .chx2-viz { position: relative; height: 176px; border: 1px solid var(--line); border-radius: 16px; overflow: hidden;
    background: radial-gradient(circle, color-mix(in srgb, var(--ink) 9%, transparent) 1px, transparent 1.3px) 0 0 / 16px 16px, var(--paper-2); }
  .chx2-viz::after { content: ""; position: absolute; inset: 0; pointer-events: none; background: radial-gradient(ellipse at center, transparent 45%, var(--paper-2) 100%); }
  .chx2-viz > * { z-index: 1; }
  .chx2 .chip { display: inline-flex; align-items: center; gap: 3px; padding: 6px 11px; border: 1px solid var(--line); border-radius: 999px; background: var(--paper); font-size: 12.5px; line-height: 1; white-space: nowrap; color: var(--ink-2); text-transform: none; letter-spacing: 0; font-weight: 500; height: auto; box-shadow: 0 1px 2px rgba(12,16,14,.04);
    transition: transform 1.1s var(--e) var(--d,0s), opacity .6s var(--d,0s), filter .6s; }
  .chx2 .chip sup { font-size: 9px; font-weight: 600; color: var(--green); top: -.35em; position: relative; }
  .chx2 .viz-in .chip { transform: translate(var(--dx,0), var(--dy,0)) rotate(var(--r,0)); }
  .chx2 .viz-in.play .chip { transform: none; }
  .v1-frame { position: absolute; left: 50%; top: 50%; transform: translate(-50%,-50%); padding: 34px 14px 14px; border: 1px solid transparent; border-radius: 14px; transition: background-color .6s .7s, border-color .6s .7s, box-shadow .6s .7s; }
  .v1-label { position: absolute; left: 16px; top: 12px; font-size: 11px; color: var(--ink-3); opacity: 0; transform: translateY(4px); transition: opacity .5s 1s, transform .5s 1s var(--e); white-space: nowrap; }
  .v1-label b { color: var(--green); font-weight: 600; }
  .v1-row { display: flex; gap: 8px; }
  .v1 .chip.ad { position: absolute; border-style: dashed; color: var(--ink-3); background: transparent; box-shadow: none; transition: opacity .6s .45s, filter .6s .45s, transform .6s .45s; }
  .v1.play .v1-frame { background: var(--paper); border-color: var(--line); box-shadow: 0 10px 30px -14px rgba(12,16,14,.18); }
  .v1.play .v1-label { opacity: 1; transform: none; }
  .v1.play .chip.ad { opacity: 0; filter: blur(3px); transform: scale(.9); text-decoration: line-through; }
  .v1-row .chip { background: var(--paper-2); }
  .v2 { display: grid; grid-template-columns: minmax(0,1.15fr) 64px minmax(0,1fr); align-items: center; padding: 0 22px; }
  .v2-ch { display: flex; flex-wrap: wrap; gap: 6px; justify-content: flex-end; }
  .v2 .chip { font-size: 12px; padding: 5px 10px; }
  .v2 .chip.more { color: var(--green); border-style: dashed; }
  .v2-lines { width: 100%; height: 110px; overflow: visible; }
  .v2-lines path { fill: none; stroke: var(--dash); stroke-width: 1; vector-effect: non-scaling-stroke; stroke-dasharray: 1; stroke-dashoffset: 1; transition: stroke-dashoffset .9s .55s var(--e); }
  .v2-lines .flow path { stroke: var(--green); stroke-width: 1.6; stroke-dasharray: .07 .93; stroke-dashoffset: 1; opacity: 0; transition: opacity .4s 1.3s; }
  .v2.play .v2-lines > path { stroke-dashoffset: 0; }
  .v2.play .v2-lines .flow path { opacity: 1; animation: chx2-flow 2.6s linear infinite; }
  .v2.play .v2-lines .flow path:nth-child(2) { animation-delay: -.65s; }
  .v2.play .v2-lines .flow path:nth-child(3) { animation-delay: -1.3s; }
  .v2.play .v2-lines .flow path:nth-child(4) { animation-delay: -1.95s; }
  .v2-hub { padding: 12px 14px; background: var(--paper); border: 1px solid var(--line); border-radius: 12px; box-shadow: 0 10px 30px -14px rgba(12,16,14,.18); opacity: 0; transform: translateX(10px) scale(.97); transition: opacity .6s .7s, transform .7s .7s var(--e); }
  .v2.play .v2-hub { opacity: 1; transform: none; }
  .hub-h { display: flex; align-items: center; gap: 8px; margin-bottom: 10px; font-size: 12.5px; font-weight: 600; color: var(--ink); }
  .hub-h .pulse { width: 7px; height: 7px; border-radius: 50%; background: var(--green); box-shadow: 0 0 0 0 color-mix(in srgb, var(--green) 40%, transparent); }
  .v2.play .hub-h .pulse { animation: chx2-pulse 2.4s 1.6s infinite; }
  .v2-hub ul { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 7px 12px; }
  .v2-hub li { display: flex; align-items: center; gap: 6px; font-size: 11.5px; color: var(--ink-2); white-space: nowrap; }
  .v2-hub li i { display: grid; place-items: center; flex: none; width: 14px; height: 14px; border-radius: 50%; border: 1px solid var(--line); color: #fff; transition: background-color .35s var(--d), border-color .35s var(--d); }
  .v2-hub li svg, .v3-st svg { width: 10px; height: 10px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
  .v2-hub li svg path { stroke-dasharray: 10; stroke-dashoffset: 10; transition: stroke-dashoffset .35s calc(var(--d) + .1s); }
  .v2.play .v2-hub li i { background: var(--green); border-color: var(--green); }
  .v2.play .v2-hub li svg path { stroke-dashoffset: 0; }
  .v3 { display: flex; align-items: center; justify-content: center; gap: 14px; }
  .v3-prod { width: 196px; padding: 12px; background: var(--paper); border: 1px solid var(--line); border-radius: 12px; box-shadow: 0 10px 30px -16px rgba(12,16,14,.18); transition: border-color .4s; }
  .v3-top { display: flex; gap: 10px; align-items: center; }
  .v3-top b { display: block; font-size: 12.5px; font-weight: 600; color: var(--ink); }
  .v3-top small { font-size: 11px; color: var(--ink-3); font-variant-numeric: tabular-nums; }
  .v3-ico { display: grid; place-items: center; flex: none; width: 30px; height: 30px; border-radius: 8px; background: var(--tint-2); color: var(--ink-3); }
  .v3-ico svg { width: 17px; height: 17px; fill: none; stroke: currentColor; stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; }
  .v3-bar { height: 16px; margin: 11px 0; opacity: .5; background: repeating-linear-gradient(90deg, var(--ink) 0 1px, transparent 1px 3px, var(--ink) 3px 5px, transparent 5px 6px, var(--ink) 6px 7px, transparent 7px 10px, var(--ink) 10px 11px, transparent 11px 14px); }
  .v3-st { position: relative; display: block; height: 22px; }
  .v3-st em { position: absolute; left: 0; top: 0; display: inline-flex; align-items: center; gap: 5px; height: 22px; padding: 0 9px; border-radius: 999px; font-style: normal; font-size: 11px; font-weight: 500; white-space: nowrap; transition: opacity .35s, transform .35s var(--e); }
  .v3-st .a { background: var(--tint-2); color: var(--ink-3); }
  .v3-st .b { opacity: 0; transform: translateY(4px); }
  .v3 .ok .b { background: var(--tint); color: var(--green); }
  .v3 .bad .b { background: color-mix(in srgb, var(--need, #8A5A12) 12%, transparent); color: var(--need, #8A5A12); }
  .v3-scan { position: absolute; top: 0; bottom: 0; left: 0; width: 2px; background: var(--green); box-shadow: 0 0 22px 6px color-mix(in srgb, var(--green) 22%, transparent); opacity: 0; }
  .v3-tag { position: absolute; right: 14px; bottom: 11px; display: inline-flex; align-items: center; gap: 6px; font-size: 10.5px; color: var(--ink-3); letter-spacing: .02em; }
  .v3-tag i { width: 5px; height: 5px; border-radius: 50%; background: var(--need, #8A5A12); }
  .v3.scan .v3-scan { animation: chx2-scan 1.9s .3s cubic-bezier(.45,0,.35,1) both; }
  .v3.scan .ok .a, .v3.scan .bad .a { opacity: 0; transform: translateY(-4px); }
  .v3.scan .ok .a, .v3.scan .ok .b { transition-delay: 1s; }
  .v3.scan .bad .a, .v3.scan .bad .b { transition-delay: 1.5s; }
  .v3.scan .b { opacity: 1; transform: none; }
  .v3.scan .ok { border-color: color-mix(in srgb, var(--green) 35%, var(--line)); transition-delay: 1s; }
  .v3.scan .bad { border-color: color-mix(in srgb, var(--need, #8A5A12) 35%, var(--line)); transition-delay: 1.5s; }
  .chx2.js .chx2-item > * { opacity: 0; transform: translateY(18px); transition: opacity .8s var(--e), transform .9s var(--e); }
  .chx2.js .chx2-item > :nth-child(2) { transition-delay: .08s; } .chx2.js .chx2-item > :nth-child(3) { transition-delay: .16s; } .chx2.js .chx2-item > :nth-child(4) { transition-delay: .24s; }
  .chx2.js .chx2-item::before { transform: scaleX(0); transition: transform 1.1s var(--e); }
  .chx2.js .chx2-item.on > * { opacity: 1; transform: none; }
  .chx2.js .chx2-item.on::before { transform: scaleX(1); }
  .chx2.js .chx2-side .chx2-sticky > * { opacity: 0; transform: translateY(16px); transition: opacity .8s var(--e), transform .9s var(--e); }
  .chx2.js .chx2-side .chx2-sticky > :nth-child(2) { transition-delay: .08s; } .chx2.js .chx2-side .chx2-sticky > :nth-child(3) { transition-delay: .16s; } .chx2.js .chx2-side .chx2-sticky > :nth-child(4) { transition-delay: .24s; }
  .chx2.js .chx2-side.on .chx2-sticky > * { opacity: 1; transform: none; }
  @keyframes chx2-flow { from { stroke-dashoffset: 1; } to { stroke-dashoffset: 0; } }
  @keyframes chx2-pulse { 0% { box-shadow: 0 0 0 0 color-mix(in srgb, var(--green) 40%, transparent); } 70%, 100% { box-shadow: 0 0 0 7px transparent; } }
  @keyframes chx2-scan { 0% { left: 4%; opacity: 0; } 12% { opacity: 1; } 88% { opacity: 1; } 100% { left: 96%; opacity: 0; } }
  @media (prefers-reduced-motion: reduce) {
    .chx2 *, .chx2 *::before { transition: none !important; animation: none !important; }
    .chx2 .viz-in .chip { transform: none; }
    .v3 .a { opacity: 0 !important; } .v3 .b { opacity: 1 !important; transform: none !important; }
  }
  @media (max-width: 960px) {
    .chx2 { grid-template-columns: 1fr; gap: 28px; }
    .chx2-sticky { position: static; }
    .chx2-index { display: none; }
  }
  @media (max-width: 600px) {
    .chx2-viz { height: auto; min-height: 168px; }
    .v1 .chip.ad { display: none; }
    .v1-frame { position: relative; left: auto; top: auto; transform: none; margin: 16px; }
    .v1-row { flex-wrap: wrap; }
    .v2 { grid-template-columns: 1fr; gap: 14px; padding: 18px; }
    .v2-ch { justify-content: flex-start; }
    .v2-lines { display: none; }
    .v3 { flex-direction: column; padding: 18px 18px 36px; }
    .v3-prod { width: 100%; }
    .chx2-item header { flex-wrap: wrap; }
  }

  /* ---------- menu Công ty thả xuống (10/10/2026) ---------- */
  .dd--company .dd__menu { min-width: 240px; }
  .dd--company .dd__menu a:first-child { color: var(--ink); font-size: 15px; font-weight: 500; border-bottom: 0; border-radius: 6px; margin-bottom: 0; }
  .dd--company .dd__menu a:first-child:hover { color: var(--green); }
  .cx-dd-wrap--company .cx-dd { width: 280px; }
  .cx-dd__all { border-bottom: 1px solid var(--dd-line); margin-bottom: 4px; padding-bottom: 12px !important; border-radius: 10px 10px 0 0 !important; }

  /* ---------- trang AIP (nội dung 10/10/2026) ---------- */
  .aip-tagline { font-size: clamp(20px, 1.8vw, 24px); font-weight: 600; letter-spacing: -.015em; line-height: 1.3; color: var(--green); margin: -6px 0 -4px; text-wrap: balance; }
  .aip-stats { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 28px 24px; }
  .aip-stats .stat b { font-size: clamp(30px, 3vw, 40px); }
  .aip-stats .stat p { font-size: 14.5px; color: var(--ink-2); }
  .aip-widget { min-height: 120px; margin-top: 20px; }
  .aip-contact { color: var(--on-dark-2); font-size: 15px; }
  .aip-contact a { color: var(--on-dark); text-decoration: underline; text-underline-offset: 3px; }
  @media (max-width: 900px) { .aip-stats { grid-template-columns: 1fr 1fr; } }
  @media (max-width: 480px) { .aip-stats { grid-template-columns: 1fr; } }

  /* ---------- Về Coauths · Lý do: câu dẫn trái, video phải (10/10/2026) ---------- */
  .abwhy { grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); align-items: center; }
  .abwhy > :first-child { gap: 18px; }
  .abwhy__lead { max-width: 30em; }
  .abwhy__media { position: relative; border-radius: 14px; overflow: hidden; aspect-ratio: 16 / 9; background: var(--tint); border: 1px solid var(--line); box-shadow: var(--shadow-card); }
  .abwhy__video { width: 100%; height: 100%; object-fit: cover; display: block; }
  .abwhy__tag { position: absolute; top: 12px; left: 12px; }
  @media (max-width: 800px) { .abwhy { grid-template-columns: 1fr; } }

  /* ---------- đầu trang Qub-X: sóng hạt canvas (10/10/2026) ---------- */
  .qxh { position: relative; isolation: isolate; overflow: hidden; min-height: clamp(480px, 62vh, 640px); display: flex; flex-direction: column; justify-content: center; background: #061c17; color: #f1faf5; }
  .qxh__canvas { position: absolute; inset: 0; width: 100%; height: 100%; z-index: -3; }
  .qxh__shade { position: absolute; inset: 0; z-index: -1; background: linear-gradient(90deg, rgba(6,28,23,.91) 0%, rgba(6,28,23,.73) 30%, rgba(6,28,23,.19) 65%, transparent 100%); }
  .qxh__wrap { padding: clamp(40px, 5vw, 64px) 0 clamp(80px, 9vw, 112px); }
  .qxh__crumbs { color: #9bb7a8; margin-bottom: 32px; }
  .qxh__crumbs a { color: #9bb7a8; } .qxh__crumbs a:hover { color: #ffffff; } .qxh__crumbs span:last-child { color: #f1faf5; }
  .qxh__copy { max-width: 620px; display: flex; flex-direction: column; align-items: flex-start; gap: 22px; }
  .qxh__eyebrow { display: inline-flex; align-items: center; gap: 14px; }
  .qxh__eyebrow .chip--live { background: rgba(194,239,183,.16); color: #c2efb7; }
  .qxh__cat { font-size: 11px; letter-spacing: .22em; text-transform: uppercase; color: #a4d4b6; }
  .qxh__title { color: #f2f9f3; font-size: clamp(34px, 5vw, 56px); line-height: 1.08; letter-spacing: -.03em; margin: 0; }
  .qxh__accent { display: block; margin-top: 6px; color: #abe5b7; font-size: .62em; font-weight: 500; letter-spacing: -.015em; line-height: 1.2; }
  .qxh__lead { margin: 0; max-width: 34em; font-size: clamp(15.5px, 1.2vw, 17px); line-height: 1.7; color: #bdd0c4; }
  .qxh__actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 6px; }
  .qxh__btn { background: #c2efb7; color: #082219; border: 0; }
  .qxh__btn:hover { background: #d6f5cc; color: #082219; transform: translateY(-1px); }
  .qxh .btn--ghost { color: #f1faf5; border-color: rgba(241,250,245,.5); }
  .qxh .btn--ghost:hover { background: rgba(255,255,255,.1); color: #ffffff; }
  .qxh__bottom { position: absolute; left: 0; right: 0; bottom: 20px; display: flex; align-items: center; justify-content: space-between; gap: 16px; color: #9bb7a8; font-size: 10px; letter-spacing: .12em; }
  .qxh__pause { display: inline-flex; align-items: center; gap: 8px; padding: 8px 13px; border-radius: 999px; border: 1px solid rgba(157,202,171,.25); background: rgba(11,48,39,.72); color: #c9e0d3; font: inherit; font-size: 12px; letter-spacing: 0; cursor: pointer; }
  .qxh__pause:hover { border-color: rgba(157,202,171,.5); color: #ffffff; }
  .qxh__ico { font-style: normal; }
  :root:not([data-theme="dark"]) .qxh { border-bottom: 1px solid var(--line); }
  @media (max-width: 640px) { .qxh { min-height: 520px; } .qxh__crumbs { margin-bottom: 22px; } .qxh__bottom > span { max-width: 160px; line-height: 1.6; font-size: 9px; } }

  /* ---------- Về Coauths · từ Tầm nhìn tới cuối trang (file user 13/10/2026) ---------- */
  #tam-nhin .vm-grid { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
  #tam-nhin .chip { width: fit-content; align-self: flex-start; text-transform: uppercase; }
  #tam-nhin h3 { margin-top: 12px; }
  .abwhy__story p + p { margin-top: 12px; }
  .abwhy__story .abwhy__sub { font-weight: 600; margin-bottom: 16px; }
  .abwhy__story .abwhy__lead { max-width: 40em; }
  #cau-chuyen .abwhy { align-items: start; }
  #cau-chuyen .abwhy__media { position: sticky; top: calc(var(--header-h, 76px) + 24px); }
  .abwhy__label { margin: 22px 0 -2px; font-size: 12px; font-weight: 600; letter-spacing: .14em; text-transform: uppercase; color: var(--need); }
  #gia-tri .cv-num { opacity: .5; }
  #y-nghia-ten .tile { max-width: 820px; }
  #y-nghia-ten .name-links { margin-top: 12px; opacity: .7; }
  .photo--map { background: var(--tint-2); }
  .office-map { border: 0; width: 100%; height: 100%; display: block; }

  /* ---------- Về Coauths · Câu chuyện: phương án S3 (13/10/2026) ---------- */
  .st3-open { max-width: 760px; margin-bottom: clamp(28px, 4vw, 44px); }
  .st3-q { margin: 14px 0 0; font-size: clamp(22px, 2.4vw, 30px); line-height: 1.3; font-weight: 500; letter-spacing: -.01em; color: var(--ink); }
  .st3-row { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: clamp(24px, 4vw, 48px); align-items: center; margin-bottom: 24px; }
  .st3-media { aspect-ratio: 16 / 9; }
  .st3-lead { margin: 0; font-size: 17px; line-height: 1.7; color: var(--ink-2); }
  /* ba thẻ căn đều: ba cột bằng nhau, thẻ kéo cao bằng nhau, nhãn cùng cỡ trên một hàng, chữ bắt đầu cùng độ cao */
  .st3-cards { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; align-items: stretch; margin-bottom: 24px; }
  .st3-cards .tile { height: 100%; gap: 0; padding-top: 22px; }
  .st3-cards .chip { align-self: flex-start; height: 26px; margin-bottom: 16px; }
  .st3-cards p { margin: 0; font-size: 16px; line-height: 1.7; color: var(--ink-2); }
  .st3-close { background: var(--green-deep); color: var(--on-dark); border-radius: 14px; padding: clamp(28px, 4vw, 48px); }
  .st3-close p { margin: 0; max-width: 56ch; font-size: clamp(17px, 1.5vw, 20px); line-height: 1.6; color: var(--on-dark-2); }
  [data-theme="dark"] .st3-close { background: #113427; border: 1px solid rgba(255,255,255,.08); }
  @media (max-width: 900px) { .st3-cards { grid-template-columns: 1fr; } }
  @media (max-width: 800px) { .st3-row { grid-template-columns: 1fr; } }

  /* ---------- Câu chuyện · video giới thiệu Coauths theo ngôn ngữ (13/10/2026) ---------- */
  .st3-video { background: #061c17; }
  .st3-video__player { object-fit: contain; background: #061c17; }

  /* ---------- Về Coauths · Giá trị cốt lõi: phương án V2 (13/10/2026) ---------- */
  .cv2 { display: grid; grid-template-columns: minmax(0, 4fr) minmax(0, 8fr); gap: clamp(28px, 5vw, 72px); align-items: start; }
  .cv2-index { position: sticky; top: calc(var(--header-h, 76px) + 28px); list-style: none; margin: 0; padding: 0; display: grid; gap: 4px; }
  .cv2-ix { position: relative; display: flex; align-items: baseline; gap: 14px; padding: 12px 16px 12px 18px; border-radius: 10px; font-size: 15.5px; font-weight: 500; color: var(--ink-3); cursor: pointer; transition: color .3s var(--ease), background .3s var(--ease); }
  .cv2-ix::before { content: ''; position: absolute; left: 0; top: 10px; bottom: 10px; width: 3px; border-radius: 3px; background: var(--green); transform: scaleY(0); transform-origin: top; transition: transform .4s var(--ease); }
  .cv2-ix__n { font-size: 12px; font-weight: 600; letter-spacing: .12em; color: var(--green); opacity: .6; }
  .cv2-ix.is-on { color: var(--ink); background: var(--paper); font-weight: 600; }
  .cv2-ix.is-on::before { transform: scaleY(1); }
  .cv2-ix.is-on .cv2-ix__n { opacity: 1; }
  .cv2-list { display: grid; }
  .cv2-item { display: grid; grid-template-columns: 72px minmax(0, 1fr); gap: 18px; padding: clamp(28px, 3.5vw, 40px) 0; border-top: 1px solid var(--line); opacity: .32; transform: translateX(14px); transition: opacity .5s ease, transform .6s var(--ease); }
  .cv2-item:first-child { border-top: 0; padding-top: 4px; }
  .cv2-item.is-on { opacity: 1; transform: none; }
  .cv2-num { font-size: 44px; font-weight: 700; line-height: 1; letter-spacing: -.04em; color: var(--green); opacity: .35; transition: opacity .5s ease; }
  .cv2-item.is-on .cv2-num { opacity: 1; }
  .cv2-item h3 { margin: 0 0 10px; font-size: clamp(22px, 2.2vw, 28px); line-height: 1.2; letter-spacing: -.01em; }
  .cv2-item p { margin: 0; font-size: 16.5px; line-height: 1.7; color: var(--ink-2); max-width: 60ch; }
  @media (prefers-reduced-motion: reduce) { .cv2-item { opacity: 1; transform: none; } .cv2-item .cv2-num { opacity: 1; } }
  @media (max-width: 900px) { .cv2 { grid-template-columns: 1fr; } .cv2-index { display: none; } .cv2-item { grid-template-columns: 52px minmax(0, 1fr); gap: 12px; } .cv2-num { font-size: 32px; } }

  /* ---------- footer: dòng pháp lý thật, không còn viền đứt minh hoạ (13/10/2026) ---------- */
  .footer__legal { border: 0; padding: 0; margin-top: 32px; line-height: 1.6; }
  /* L1 (user chọn 15/10/2026): ba cột có nhãn nhỏ in hoa, ngăn bằng vạch mảnh; điện thoại xếp dọc */
  .ftl1 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; margin-top: 32px; padding: 22px 0 0; border-top: 1px solid #262B28; line-height: 1.55; }
  .ftl1 > div { display: flex; flex-direction: column; gap: 6px; padding-left: 18px; border-left: 1px solid #262B28; }
  .ftl1 > div:first-child { padding-left: 0; border-left: 0; }
  .ftl1 small { font-size: 11px; font-weight: 600; letter-spacing: .16em; text-transform: uppercase; color: #7C8680; }
  .ftl1 b { font-weight: 500; font-size: 13.5px; color: #B9C2BC; }
  @media (max-width: 800px) { .ftl1 { grid-template-columns: 1fr; gap: 16px; } .ftl1 > div { padding-left: 0; border-left: 0; } }
  .footer__social .footer__li { display: inline-flex; align-items: center; justify-content: center; width: 28px; height: 28px; padding: 0; border: 0; border-radius: 3px; line-height: 0; transition: opacity .2s var(--ease), transform .2s var(--ease); }
  .footer__social .footer__li:hover, .footer__social .footer__li:focus-visible { opacity: .85; transform: translateY(-1px); }
  .footer__social .footer__li:focus-visible { outline: 2px solid #ffffff; outline-offset: 3px; }
  .footer__brand p[data-t="footer.tagline"] { color: var(--on-dark-2); font-size: 15px; max-width: 24em; }

  /* ---------- trang chủ · Mới từ Coauths: ba bài Góc nhìn thật kèm ảnh tiêu đề (13/10/2026) ---------- */
  .posts .post a.photo { display: block; }

  /* ---------- Tổng quan sản phẩm theo mockup 13/10/2026 (products-page.mjs) ---------- */
  .pph { position: relative; isolation: isolate; overflow: hidden; min-height: clamp(560px, 86vh, 820px); display: flex; flex-direction: column; background: var(--green-deep); color: #ffffff; }
  [data-theme="dark"] .pph { background: #0b2219; }
  .pph__waves { position: absolute; inset: 0; width: 100%; height: 100%; z-index: -2; }
  .pph::after { content: ""; position: absolute; inset: 0; z-index: -1; pointer-events: none; background: linear-gradient(90deg, rgba(18,56,43,.92) 0%, rgba(18,56,43,.55) 45%, rgba(18,56,43,0) 75%), linear-gradient(0deg, rgba(18,56,43,.9), transparent 35%); }
  [data-theme="dark"] .pph::after { background: linear-gradient(90deg, rgba(11,34,25,.94) 0%, rgba(11,34,25,.6) 45%, rgba(11,34,25,0) 75%), linear-gradient(0deg, rgba(11,34,25,.92), transparent 35%); }
  .pph__wrap { flex: 1; display: flex; flex-direction: column; justify-content: center; padding: clamp(56px, 8vw, 96px) 0 clamp(48px, 6vw, 72px); }
  .pph .eyebrow { color: var(--on-dark-3); }
  .pph__h1 { font-size: clamp(36px, 5.2vw, 62px); line-height: 1.08; letter-spacing: -.025em; max-width: 780px; margin: 22px 0; color: #ffffff; }
  .pph__h1 em { font-style: normal; color: var(--on-dark-2); }
  .pph__h1 .w { display: inline-block; opacity: 0; transform: translateY(.5em); filter: blur(6px); transition: opacity .8s var(--ease), transform .8s var(--ease), filter .8s var(--ease); }
  .pph.go .pph__h1 .w { opacity: 1; transform: none; filter: none; }
  .pph__lead { max-width: 560px; color: var(--on-dark-2); opacity: 0; transform: translateY(12px); transition: opacity .9s var(--ease) .6s, transform .9s var(--ease) .6s; }
  .pph.go .pph__lead { opacity: 1; transform: none; }
  .pph__cta { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 30px; opacity: 0; transition: opacity .9s var(--ease) .8s; }
  .pph.go .pph__cta { opacity: 1; }
  .pph .btn--ghost { color: #ffffff; }
  .pp-chip { display: inline-flex; align-items: center; gap: 6px; font-size: 10.5px; font-weight: 600; letter-spacing: .08em; text-transform: uppercase; padding: 4px 10px; border-radius: 99px; background: var(--tint); color: var(--green); vertical-align: middle; }
  .pp-chip--dev { background: var(--need-soft); color: var(--need); }
  .pp-chip i { width: 6px; height: 6px; border-radius: 50%; background: currentColor; animation: ppPulse 2s infinite; }
  @keyframes ppPulse { 0% { box-shadow: 0 0 0 0 rgba(28,82,62,.45); } 70% { box-shadow: 0 0 0 7px rgba(28,82,62,0); } 100% { box-shadow: 0 0 0 0 rgba(28,82,62,0); } }
  /* thanh ba sản phẩm cuối màn đầu */
  .pp-rail { position: relative; z-index: 2; border-top: 1px solid rgba(255,255,255,.14); }
  .pp-rail__in { display: grid; grid-template-columns: repeat(3, 1fr); }
  .pp-rail a { display: block; padding: 22px 22px 26px; border-left: 1px solid rgba(255,255,255,.14); position: relative; color: #ffffff; opacity: 0; transform: translateY(16px); transition: background .3s; }
  .pp-rail a:last-child { border-right: 1px solid rgba(255,255,255,.14); }
  .pph.go .pp-rail a { opacity: 1; transform: none; transition: opacity .8s var(--ease), transform .8s var(--ease), background .3s; }
  .pph.go .pp-rail a:nth-child(1) { transition-delay: 1s, 1s, 0s; } .pph.go .pp-rail a:nth-child(2) { transition-delay: 1.12s, 1.12s, 0s; } .pph.go .pp-rail a:nth-child(3) { transition-delay: 1.24s, 1.24s, 0s; }
  .pp-rail a::before { content: ""; position: absolute; left: 0; top: -1px; height: 2px; width: 0; background: #ffffff; transition: width .5s var(--ease); }
  .pp-rail a:hover { background: rgba(255,255,255,.05); color: #ffffff; } .pp-rail a:hover::before { width: 100%; }
  .pp-rail .n { display: block; font-size: 12px; color: var(--on-dark-3); font-variant-numeric: tabular-nums; }
  .pp-rail .t { display: flex; align-items: center; justify-content: space-between; gap: 10px; font-size: 22px; font-weight: 600; margin: 6px 0 4px; }
  .pp-rail .d { display: block; font-size: 13.5px; color: var(--on-dark-2); }
  .pp-rail .pp-chip { background: rgba(255,255,255,.1); color: #ffffff; } .pp-rail .pp-chip--dev { background: rgba(251,239,217,.14); color: #F5D9A6; }
  /* thanh mục dính */
  .pp-sub { position: sticky; top: var(--header-h); z-index: 40; background: color-mix(in srgb, var(--paper-2) 90%, transparent); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); }
  .pp-sub__in { display: flex; align-items: center; gap: 6px; height: 54px; overflow-x: auto; scrollbar-width: none; }
  .pp-sub__in::-webkit-scrollbar { display: none; }
  .pp-sub a { font-size: 13.5px; font-weight: 500; color: var(--ink-3); padding: 7px 14px; border-radius: 99px; white-space: nowrap; transition: background .25s, color .25s; }
  .pp-sub a:hover { color: var(--ink); } .pp-sub a.on { background: var(--green); color: #ffffff; }
  [data-theme="dark"] .pp-sub a.on { color: #0B1512; }
  .pp-sub .r { margin-left: auto; font-size: 13px; color: var(--ink-3); white-space: nowrap; } .pp-sub .r b { color: var(--ink); }
  .pp-sub__prog { position: absolute; left: 0; bottom: -1px; height: 2px; background: var(--green); width: 0; }
  /* hệ sinh thái */
  .pp-intro { display: grid; grid-template-columns: 1.1fr 1fr; gap: 64px; align-items: end; margin-bottom: 56px; }
  .pp-intro h2 { margin-top: 14px; } .pp-intro p { color: var(--ink-2); font-size: 16.5px; }
  .pp-eco { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
  .pp-domain { background: var(--paper); border: 1px solid var(--line); border-radius: 10px; padding: 28px; position: relative; overflow: hidden; }
  .pp-domain h3 { font-size: 13px; letter-spacing: .12em; text-transform: uppercase; color: var(--ink-3); font-weight: 600; margin-bottom: 18px; line-height: 1.4; }
  .pp-domain .items { display: grid; gap: 12px; } .pp-domain--two .items { grid-template-columns: 1fr 1fr; }
  .pp-pcard { display: block; border-top: 1px solid var(--green); padding-top: 16px; position: relative; color: var(--ink); }
  .pp-pcard b { font-size: 22px; font-weight: 600; letter-spacing: -.01em; display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
  .pp-pcard b .pp-chip { font-size: 10px; }
  .pp-pcard > span { display: block; font-size: 14px; color: var(--ink-2); margin-top: 6px; }
  .pp-pcard .go { position: absolute; right: 0; top: 18px; opacity: 0; transform: translateX(-6px); transition: opacity .3s var(--ease), transform .3s var(--ease); color: var(--green); margin: 0; }
  .pp-pcard:hover { color: var(--ink); } .pp-pcard:hover .go { opacity: 1; transform: none; }
  .pp-domain::after { content: ""; position: absolute; inset: 0; background: radial-gradient(400px circle at var(--mx, 50%) var(--my, 50%), color-mix(in srgb, var(--green) 9%, transparent), transparent 60%); opacity: 0; transition: opacity .3s; pointer-events: none; }
  .pp-domain:hover::after { opacity: 1; }
  /* chương sản phẩm */
  .pp-ch { border-top: 1px solid var(--line); }
  .pp-ch--paper { background: var(--paper); }
  .pp-ch__grid { display: grid; grid-template-columns: minmax(0, .85fr) minmax(0, 1.15fr); gap: 64px; }
  .pp-ch__grid > div { min-width: 0; }
  .pp-sticky { position: sticky; top: calc(var(--header-h) + 54px + 40px); align-self: start; }
  .pp-num { font-size: 120px; line-height: .8; font-weight: 700; letter-spacing: -.05em; color: transparent; -webkit-text-stroke: 1px var(--dash); margin-bottom: 20px; user-select: none; }
  .pp-ch h2 { margin: 14px 0 16px; }
  .pp-desc { color: var(--ink-2); font-size: 16px; margin-bottom: 22px; }
  .pp-meta { font-size: 13px; color: var(--ink-3); font-weight: 500; margin-bottom: 24px; }
  .pp-actions { display: flex; gap: 18px; align-items: center; flex-wrap: wrap; }
  .pp-stats { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin: 28px 0; border-top: 1px solid var(--line); padding-top: 22px; position: relative; }
  .pp-stats .tag { grid-column: 1 / -1; justify-self: start; }
  .pp-stat b { display: block; font-size: 40px; font-weight: 600; letter-spacing: -.03em; color: var(--green); line-height: 1; }
  .pp-stat span { font-size: 13px; color: var(--ink-3); }
  .pp-bar__t { font-size: 12px; font-weight: 600; color: var(--ink-2); }
  .shot .shot__bar .pp-bar__t { flex: none; height: auto; background: none; max-width: none; border-radius: 0; }
  /* lịch hẹn mô phỏng */
  .pp-cal { padding: 14px 16px 18px; font-size: 11px; color: var(--ink); }
  .pp-cal .hours { display: grid; grid-template-columns: 70px repeat(6, 1fr); color: var(--ink-3); margin-bottom: 6px; }
  .pp-cal .row { display: grid; grid-template-columns: 70px 1fr; align-items: center; height: 34px; border-top: 1px dashed var(--line); }
  .pp-cal .lane { position: relative; height: 24px; }
  .pp-cal .ev { position: absolute; top: 0; height: 24px; border-radius: 4px; background: var(--tint); border-left: 3px solid var(--green); padding: 4px 8px; font-weight: 600; color: var(--green); white-space: nowrap; overflow: hidden; transform-origin: left; transform: scaleX(0); transition: transform .7s var(--ease); }
  :root:not([data-theme="dark"]) .pp-cal .ev { color: var(--green-deep); }
  .in .pp-cal .ev { transform: none; }
  .pp-cal .now { position: absolute; top: 0; bottom: 0; width: 2px; background: #C24A3A; left: 58%; }
  /* dải kênh chạy */
  .pp-marq { overflow: hidden; border-block: 1px solid var(--line); margin: 22px 0 0; mask: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent); -webkit-mask: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent); }
  .pp-marq .track { display: flex; gap: 10px; padding: 12px 0; width: max-content; animation: ppMq 26s linear infinite; }
  .pp-marq span { font-size: 13px; font-weight: 500; padding: 6px 14px; border: 1px solid var(--line); border-radius: 99px; background: var(--paper); color: var(--ink-2); }
  @keyframes ppMq { to { transform: translateX(-50%); } }
  .pp-feats { display: grid; grid-template-columns: 1fr 1fr; gap: 0 28px; margin-top: 36px; }
  .pp-feat { border-top: 1px solid var(--green); padding: 18px 0 22px; }
  .pp-feat h4 { font-size: 15.5px; font-weight: 600; margin: 0 0 6px; display: flex; gap: 10px; align-items: baseline; }
  .pp-feat h4 small { font-size: 11px; color: var(--ink-3); font-weight: 500; font-variant-numeric: tabular-nums; }
  .pp-feat p { font-size: 14px; color: var(--ink-2); }
  /* bảng tin AIP */
  .pp-feed { padding: 6px 0; }
  .pp-feed__item { display: grid; grid-template-columns: auto 1fr auto; gap: 14px; align-items: center; padding: 14px 18px; border-bottom: 1px solid var(--line); opacity: 0; transform: translateY(8px); transition: opacity .6s var(--ease), transform .6s var(--ease); }
  .in .pp-feed__item { opacity: 1; transform: none; }
  .pp-feed__tag { font-size: 10.5px; font-weight: 600; letter-spacing: .06em; text-transform: uppercase; padding: 3px 8px; border-radius: 4px; background: var(--tint); color: var(--green); min-width: 96px; text-align: center; }
  .pp-feed__ttl { font-size: 13.5px; font-weight: 500; color: var(--ink); }
  .pp-feed__src { font-size: 11.5px; color: var(--ink-3); display: flex; align-items: center; gap: 5px; white-space: nowrap; }
  .pp-feed__src::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--green); }
  .pp-search { margin: 14px 18px 8px; display: flex; align-items: center; gap: 10px; border: 1px solid var(--line); border-radius: 8px; padding: 10px 12px; font-size: 13px; color: var(--ink-3); min-height: 40px; }
  .pp-search .caret { width: 1px; height: 16px; background: var(--ink); animation: ppBlink 1s steps(2) infinite; }
  @keyframes ppBlink { 50% { opacity: 0; } }
  .pp-cats { margin-top: 36px; }
  .pp-cat { display: grid; grid-template-columns: 200px 1fr; gap: 20px; padding: 16px 0; border-top: 1px solid var(--line); font-size: 14px; transition: padding .3s var(--ease), background .3s; }
  .pp-cat:hover { padding-left: 10px; background: linear-gradient(90deg, var(--tint-2), transparent); }
  .pp-cat b { font-weight: 600; } .pp-cat span { color: var(--ink-2); }
  /* chương Cosmos tối */
  .pp-ch--dark { background: var(--green-deep); color: #ffffff; border-top: 0; }
  [data-theme="dark"] .pp-ch--dark { background: #0f2f24; }
  .pp-ch--dark h2 { color: #ffffff; } .pp-ch--dark .pp-num { -webkit-text-stroke: 1px rgba(255,255,255,.22); }
  .pp-ch--dark .pp-desc { color: var(--on-dark-2); }
  .pp-ch--dark .pp-chip--dev { background: rgba(251,239,217,.14); color: #F5D9A6; }
  .pp-ch--dark .note--dark { margin-bottom: 24px; }
  .pp-scanner { position: relative; aspect-ratio: 4 / 3; border-radius: 14px; background: radial-gradient(circle at 50% 45%, #1f5a45, #0f2f24 70%); border: 1px solid rgba(255,255,255,.12); overflow: hidden; display: grid; place-items: center; }
  .pp-phone { width: 42%; aspect-ratio: 9 / 17; border-radius: 26px; border: 2px solid rgba(255,255,255,.35); position: relative; overflow: hidden; background: rgba(0,0,0,.25); }
  .pp-phone .box { position: absolute; inset: 22% 16% 30%; border-radius: 8px; background: linear-gradient(160deg, #e9f0ec, #b9cfc3); display: grid; place-items: center; color: #12382B; font-weight: 700; font-size: 12px; letter-spacing: .1em; }
  .pp-phone .frame { position: absolute; inset: 18% 10% 26%; }
  .pp-phone .frame i { position: absolute; width: 18px; height: 18px; border-color: #ffffff; border-style: solid; }
  .pp-phone .frame i:nth-child(1) { left: 0; top: 0; border-width: 2px 0 0 2px; } .pp-phone .frame i:nth-child(2) { right: 0; top: 0; border-width: 2px 2px 0 0; }
  .pp-phone .frame i:nth-child(3) { left: 0; bottom: 0; border-width: 0 0 2px 2px; } .pp-phone .frame i:nth-child(4) { right: 0; bottom: 0; border-width: 0 2px 2px 0; }
  .pp-phone .line { position: absolute; left: 10%; right: 10%; height: 2px; background: #7CF2BE; box-shadow: 0 0 14px 3px rgba(124,242,190,.7); top: 18%; animation: ppScan 2.6s ease-in-out infinite; }
  @keyframes ppScan { 50% { top: 72%; } }
  .pp-phone .res { position: absolute; left: 10%; right: 10%; bottom: 8%; background: #ffffff; color: #12382B; border-radius: 8px; padding: 7px 9px; font-size: 10.5px; font-weight: 600; display: flex; gap: 6px; align-items: center; animation: ppRes 5.2s infinite; }
  .pp-phone .res::before { content: "✓"; display: grid; place-items: center; width: 16px; height: 16px; border-radius: 50%; background: #1C523E; color: #ffffff; font-size: 10px; flex: none; }
  @keyframes ppRes { 0%, 45% { opacity: 0; transform: translateY(8px); } 55%, 95% { opacity: 1; transform: none; } 100% { opacity: 0; } }
  .pp-nfc { position: absolute; right: 12%; top: 20%; width: 70px; height: 70px; }
  .pp-nfc span { position: absolute; inset: 0; border: 1px solid rgba(124,242,190,.6); border-radius: 50%; animation: ppRing 2.4s infinite; }
  .pp-nfc span:nth-child(2) { animation-delay: .8s; } .pp-nfc span:nth-child(3) { animation-delay: 1.6s; }
  @keyframes ppRing { from { transform: scale(.3); opacity: 1; } to { transform: scale(1.4); opacity: 0; } }
  .pp-steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: 30px; position: relative; }
  .pp-steps::before { content: ""; position: absolute; top: 14px; left: 0; right: 0; height: 1px; background: rgba(255,255,255,.18); }
  .pp-steps .fill { position: absolute; top: 14px; left: 0; height: 1px; background: #7CF2BE; width: 0; transition: width 2.2s var(--ease); }
  .in .pp-steps .fill { width: 100%; }
  .pp-step { position: relative; }
  .pp-step .k { width: 28px; height: 28px; border-radius: 50%; background: var(--green-deep); border: 1px solid rgba(255,255,255,.35); display: grid; place-items: center; font-size: 12px; font-weight: 600; margin-bottom: 12px; transition: background .4s, color .4s, border-color .4s; }
  .in .pp-step .k { background: #7CF2BE; color: #12382B; border-color: #7CF2BE; }
  .in .pp-step:nth-child(3) .k { transition-delay: .5s; } .in .pp-step:nth-child(4) .k { transition-delay: 1s; } .in .pp-step:nth-child(5) .k { transition-delay: 1.5s; }
  .pp-step b { font-size: 14.5px; display: block; margin-bottom: 4px; } .pp-step p { font-size: 13px; color: var(--on-dark-2); }
  .pp-signup { margin-top: 30px; padding: 16px 18px; }
  /* bảng so sánh */
  .pp-matrix { margin-top: 44px; background: var(--paper); border: 1px solid var(--line); border-radius: 12px; overflow: auto; }
  .pp-matrix table { width: 100%; border-collapse: collapse; font-size: 14px; min-width: 560px; }
  .pp-matrix th, .pp-matrix td { padding: 18px 22px; text-align: left; border-bottom: 1px solid var(--line); }
  .pp-matrix thead th { font-size: 12px; letter-spacing: .08em; text-transform: uppercase; color: var(--ink-3); font-weight: 600; background: var(--paper-2); }
  .pp-matrix thead th b { display: block; font-size: 17px; letter-spacing: -.01em; text-transform: none; color: var(--ink); }
  .pp-matrix tbody tr { transition: background .2s; } .pp-matrix tbody tr:hover { background: var(--tint-2); }
  .pp-matrix td:first-child { font-weight: 600; } .pp-matrix tr:last-child td { border-bottom: 0; }
  .pp-y, .pp-p, .pp-n { display: inline-flex; align-items: center; gap: 8px; font-weight: 500; }
  .pp-y::before, .pp-p::before, .pp-n::before { content: ""; width: 9px; height: 9px; border-radius: 50%; flex: none; }
  .pp-y { color: var(--green); } .pp-y::before { background: var(--green); }
  .pp-p { color: var(--green); } .pp-p::before { border: 1.5px dashed var(--green); }
  .pp-n { color: var(--ink-3); } .pp-n::before { background: var(--line); }
  .pp-legend { display: flex; gap: 22px; font-size: 12.5px; margin-top: 14px; color: var(--ink-3); flex-wrap: wrap; }
  /* dải CTA */
  .pp-cta { margin: 0 auto clamp(64px, 8vw, 110px); }
  .pp-cta__box { position: relative; overflow: hidden; border-radius: 16px; background: var(--green-deep); color: #ffffff; padding: clamp(40px, 5vw, 64px) clamp(24px, 4vw, 56px); display: grid; grid-template-columns: 1.3fr 1fr; gap: 40px; align-items: center; }
  [data-theme="dark"] .pp-cta__box { background: #0f2f24; border: 1px solid rgba(255,255,255,.08); }
  .pp-cta__waves { position: absolute; inset: 0; width: 100%; height: 100%; opacity: .55; z-index: 0; }
  .pp-cta__box > * { position: relative; z-index: 1; }
  .pp-cta__box h2 { color: #ffffff; } .pp-cta__box p { color: var(--on-dark-2); margin-top: 12px; }
  .pp-cta__acts { display: flex; gap: 12px; justify-content: flex-end; flex-wrap: wrap; }
  .pp-cta__acts .btn--ghost { color: #ffffff; }
  /* hiện dần */
  .pp-rv { opacity: 0; transform: translateY(24px); transition: opacity .9s var(--ease), transform .9s var(--ease); }
  .pp-rv.in { opacity: 1; transform: none; }
  .pp-stag > * { opacity: 0; transform: translateY(16px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
  .pp-stag.in > * { opacity: 1; transform: none; }
  .pp-stag.in > *:nth-child(2) { transition-delay: .08s; } .pp-stag.in > *:nth-child(3) { transition-delay: .16s; } .pp-stag.in > *:nth-child(4) { transition-delay: .24s; } .pp-stag.in > *:nth-child(5) { transition-delay: .32s; } .pp-stag.in > *:nth-child(6) { transition-delay: .4s; } .pp-stag.in > *:nth-child(7) { transition-delay: .48s; }
  @media (max-width: 860px) {
    .pp-rail__in, .pp-intro, .pp-eco, .pp-ch__grid, .pp-cta__box { grid-template-columns: 1fr; }
    .pp-rail a { border-right: 1px solid rgba(255,255,255,.14); }
    .pp-sticky { position: static; }
    .pp-domain--two .items, .pp-feats, .pp-steps { grid-template-columns: 1fr 1fr; }
    .pp-cat { grid-template-columns: 1fr; gap: 4px; }
    .pp-num { font-size: 80px; }
    .pp-cta__acts { justify-content: flex-start; }
    .pp-sub .r { display: none; }
    .pp-intro { gap: 20px; margin-bottom: 36px; }
  }
  @media (max-width: 520px) { .pp-feats, .pp-steps, .pp-domain--two .items { grid-template-columns: 1fr; } }
  @media (prefers-reduced-motion: reduce) {
    .pp-rv, .pp-stag > *, .pph__h1 .w, .pph__lead, .pph__cta, .pp-rail a { opacity: 1 !important; transform: none !important; filter: none !important; transition: none !important; }
    .pp-marq .track, .pp-phone .line, .pp-phone .res, .pp-nfc span, .pp-chip i, .pp-search .caret { animation: none !important; }
  }

  /* ---------- CTA thanh menu: Nhận tư vấn, riêng trang Qub-X là Đặt lịch demo (13/10/2026) ---------- */
  .nav__cta .cta-demo { display: none; }
  html[data-page="qub-x"] .nav__cta .cta-demo { display: inline; }
  html[data-page="qub-x"] .nav__cta .cta-advise { display: none; }

  /* ---------- Qub-X: nút Xem sản phẩm tách nửa trên/nửa dưới, Qubi chui ra, nhảy vào video (13/10/2026) ---------- */
  .qxh__btn { position: relative; overflow: visible; z-index: 2; }
  .qxh__btn .qxw__play { font-size: 11px; margin-left: 2px; }
  .qxh__btn > span { position: relative; z-index: 2; transition: opacity .25s; }
  /* hai nửa nút (trên / dưới) phủ lên nút, trượt ra khi mở; nền nút lúc mở tối lại như "bên trong" */
  .qxh__btn::before, .qxh__btn::after { content: ""; position: absolute; left: 0; right: 0; height: 50%; background: #c2efb7; z-index: 1; opacity: 0; pointer-events: none; transition: transform .45s cubic-bezier(.4,0,.2,1), opacity 0s linear .45s; }
  .qxh__btn::before { top: 0; border-radius: var(--radius) var(--radius) 0 0; }
  .qxh__btn::after { bottom: 0; border-radius: 0 0 var(--radius) var(--radius); }
  .qxh__btn.is-open { background: #0d3a2c; box-shadow: inset 0 0 0 1px rgba(194,239,183,.55), inset 0 10px 18px rgba(0,0,0,.55); transition: background .2s; }
  .qxh__btn.is-open > span { opacity: 0; }
  .qxh__btn.is-open::before, .qxh__btn.is-open::after { opacity: 1; transition: transform .45s cubic-bezier(.4,0,.2,1), opacity 0s; }
  .qxh__btn.is-open::before { transform: translateY(-115%); }
  .qxh__btn.is-open::after { transform: translateY(115%); }
  .qxh__btn:hover { transform: none; }
  /* Qubi: toạ độ do script đặt (--x/--y theo pixel trong hero) */
  .qxw__qubi { position: absolute; left: 0; top: 0; width: var(--qw, 190px); height: auto; z-index: 1; opacity: 0; pointer-events: none;
    transform: translate(var(--x, 0px), var(--y, 0px)) scale(var(--s, .3)) rotate(var(--r, 0deg)); transform-origin: 50% 85%;
    filter: drop-shadow(0 18px 24px rgba(0,0,0,.45)); transition: transform .6s cubic-bezier(.3,1.3,.4,1), opacity .3s; }
  .qxw__qubi.is-show { opacity: 1; }
  .qxw__qubi.is-out { z-index: 3; }
  .qxw__qubi.is-hop { transition: transform 1s cubic-bezier(.3,.7,.2,1), opacity .3s; animation: qxwWalk .34s ease-in-out 3; }
  .qxw__qubi.is-dive { transition: transform .55s cubic-bezier(.5,0,.8,.4), opacity .45s ease .1s; }
  @keyframes qxwWalk { 0%, 100% { margin-top: 0; } 50% { margin-top: -14px; } }
  /* khung video: giữa khoảng trống bên phải cột chữ (vị trí/kích thước do script tính) */
  .qxw__video { position: absolute; z-index: 2; left: var(--vx, 60%); width: var(--vw, clamp(380px, 37vw, 720px)); top: var(--vy, 50%); transform: translateY(-50%) scale(.92); margin: 0; border-radius: 16px; overflow: hidden;
    background: #061c17; border: 1px solid rgba(194,239,183,.28); box-shadow: 0 34px 70px -26px rgba(0,0,0,.75); opacity: 0; transition: opacity .7s ease, transform .8s cubic-bezier(.2,.8,.2,1); pointer-events: none; }
  .qxh.is-ready .qxw__video { opacity: 1; transform: translateY(-50%) scale(1); pointer-events: auto; }
  .qxw__bar { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 9px 10px 9px 16px; font-size: 12px; letter-spacing: .08em; text-transform: uppercase; color: #c9e0d3; background: #0b3027; }
  .qxw__close { display: inline-flex; align-items: center; gap: 6px; padding: 6px 11px; border-radius: 999px; border: 1px solid rgba(157,202,171,.3); background: transparent; color: #f1faf5; font: inherit; font-size: 12px; letter-spacing: 0; text-transform: none; cursor: pointer; }
  .qxw__close:hover { background: rgba(255,255,255,.1); }
  .qxw__player { display: block; width: 100%; aspect-ratio: 16 / 9; background: #000; }
  @media (max-width: 1100px) {
    .qxw__video { position: relative; left: auto; top: auto; transform: none; width: 100%; margin: 24px 0 0; display: none; }
    .qxh.is-watching .qxw__video { display: block; }
    .qxh.is-ready .qxw__video { transform: none; }
    .qxw__qubi { --qw: 120px; }
    .qxh__wrap { padding-bottom: clamp(96px, 14vw, 128px); }
  }
  @media (prefers-reduced-motion: reduce) { .qxw__qubi, .qxw__video, .qxh__btn, .qxh__btn::before, .qxh__btn::after { transition: none !important; animation: none !important; } }

  /* ảnh thật (bảng PHOTO) nếu có: đặt nguyên tỉ lệ trên nền xanh đậm, kèm ghi nguồn */
  .photo--real { position: relative; background: radial-gradient(ellipse at 50% 42%, #1C523E 0%, #0d2a20 72%); }
  .photo--real img { object-fit: contain; padding: 7%; box-sizing: border-box; }
  .photo__credit { position: absolute; right: 10px; bottom: 8px; font-size: 11px; letter-spacing: .06em; color: #CFE0D7; opacity: .85; }
  /* ---------- Góc nhìn: bài có nguồn (13/10/2026) ---------- */
  .post h3 a, .post h2 a { color: inherit; } .post h3 a:hover, .post h2 a:hover { color: var(--green); }
  .post--feature > div { display: flex; flex-direction: column; gap: 10px; align-items: flex-start; }
  .ins-featmeta { margin-top: 4px; }
  .ins-src { font-size: 14px; margin-top: 4px; }
  .post[hidden] { display: none; }
  .ins-empty { margin-top: 12px; }

  /* ---------- Qub-X · câu chuyện khách hàng thí điểm (13/10/2026) ---------- */
  .qs-note { margin-top: 14px; font-size: 14px; color: var(--ink-3); }
  .qs-stats .stat b { font-size: clamp(28px, 3vw, 40px); }

  /* ---------- Liên hệ: phương án C1 (13/10/2026) ---------- */
  .ct1 { padding-block: clamp(56px, 7vw, 96px); }
  .ct1-grid { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); gap: clamp(32px, 5vw, 80px); align-items: start; }
  .ct1-side { display: flex; flex-direction: column; gap: 18px; }
  .ct1-side h1 { margin: 0; font-size: clamp(32px, 4vw, 48px); line-height: 1.1; letter-spacing: -.02em; }
  .ct1-side .lead { margin: 0; }
  .ct1-card { margin-top: 10px; padding: 26px 28px 8px; border-radius: 16px; background: var(--green-deep); color: var(--on-dark); display: flex; flex-direction: column; scroll-margin-top: 96px; }
  .ct1-card small { display: block; font-size: 11.5px; font-weight: 600; letter-spacing: .16em; text-transform: uppercase; color: var(--on-dark-3); margin-bottom: 6px; }
  .ct1-card b { font-size: 17px; font-weight: 600; color: var(--on-dark); }
  .ct1-card span { display: block; font-size: 13.5px; color: var(--on-dark-2); margin-top: 4px; }
  .ct1-mail { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; padding: 0 0 20px; border-bottom: 1px solid rgba(255,255,255,.12); color: var(--on-dark); }
  .ct1-mail small { width: 100%; margin-bottom: 2px; }
  .ct1-mail b { font-size: clamp(20px, 2vw, 24px); letter-spacing: -.01em; }
  .ct1-mail .icon { width: 18px; height: 18px; color: var(--on-dark-3); transition: transform .2s var(--ease); }
  .ct1-mail:hover .icon { transform: translateX(4px); }
  .ct1-row { padding: 18px 0; border-bottom: 1px solid rgba(255,255,255,.12); }
  .ct1-row:last-child { border-bottom: 0; }
  .ct1-hours b { display: inline-flex; align-items: center; gap: 10px; }
  .ct1-dot { width: 9px; height: 9px; border-radius: 50%; background: #7FC9A6; box-shadow: 0 0 0 4px rgba(127,201,166,.22); animation: ct1Pulse 2s ease-in-out infinite; }
  @keyframes ct1Pulse { 0%, 100% { box-shadow: 0 0 0 4px rgba(127,201,166,.22); } 50% { box-shadow: 0 0 0 7px rgba(127,201,166,.08); } }
  .ct1-support { margin-top: 4px; padding: 20px 22px; border-radius: 14px; border: 1px solid var(--line); background: var(--paper-2); display: flex; flex-direction: column; gap: 6px; }
  .ct1-support b { font-size: 15.5px; }
  .ct1-support p { margin: 0; font-size: 14.5px; color: var(--ink-2); }
  .ct1-support .link { margin-top: 4px; font-size: 14.5px; }
  .ct1 .form { border-radius: 18px; padding: clamp(28px, 3.5vw, 44px); gap: 26px; }
  .ctx-formhead h2 { margin: 0; font-size: 22px; letter-spacing: -.01em; }
  .ctx-formhead p { margin: 6px 0 0; font-size: 15px; color: var(--ink-3); }
  .ct1 .field input, .ct1 .field select { height: 50px; border-radius: 12px; background: var(--paper-2); }
  .ct1 .field textarea { border-radius: 12px; background: var(--paper-2); }
  .ct1 .field input:focus, .ct1 .field select:focus, .ct1 .field textarea:focus { background: var(--paper); }
  .ctx-submit { width: 100%; height: 54px; gap: 10px; font-size: 16px; }
  .ctx-submit .icon { transition: transform .2s var(--ease); }
  .ctx-submit:hover .icon { transform: translateX(4px); }
  [data-theme="dark"] .ct1-card { background: #0e3a2c; border: 1px solid rgba(255,255,255,.08); }
  [data-theme="dark"] .ct1-support { background: var(--tint-2); }
  @media (max-width: 900px) { .ct1-grid { grid-template-columns: 1fr; } }
  @media (prefers-reduced-motion: reduce) { .ct1-dot { animation: none; } }

  /* ---------- Về Coauths · Lộ trình: R2 bậc thang + quả cầu toàn cầu (13/10/2026) ---------- */
  .rdg-head { display: grid; grid-template-columns: minmax(0, 6fr) minmax(0, 5fr); gap: clamp(28px, 5vw, 64px); align-items: center; margin-bottom: clamp(32px, 4vw, 48px); }
  .rdg-copy { display: flex; flex-direction: column; gap: 14px; min-width: 0; }
  .rdg-copy .lead { margin: 0; max-width: 40em; }
  .rdg-legend { margin-top: 10px; }
  .rdg-phases { list-style: none; margin: 10px 0 0; padding: 0; display: flex; flex-direction: column; border-top: 1px solid var(--line); }
  .rdg-phase { border-bottom: 1px solid var(--line); }
  .rdg-phase button { all: unset; cursor: pointer; display: grid; grid-template-columns: 12px 64px minmax(0, 1fr); gap: 14px; align-items: baseline; width: 100%; padding: 11px 6px; border-radius: 6px; font: inherit; transition: background .2s var(--ease); }
  .rdg-phase button:hover { background: var(--paper); }
  .rdg-phase button:focus-visible { outline: 2px solid var(--green); outline-offset: 2px; }
  .rdg-phase .sw { width: 10px; height: 10px; border-radius: 50%; background: var(--c); align-self: center; box-shadow: 0 0 0 3px color-mix(in srgb, var(--c) 22%, transparent); }
  .rdg-phase .yr { font-family: 'IBM Plex Mono', ui-monospace, monospace; font-size: 13px; color: var(--ink-3); font-variant-numeric: tabular-nums; }
  .rdg-phase .nm { font-weight: 600; font-size: 15px; color: var(--ink); }
  .rdg-phase .ct { display: block; color: var(--ink-3); font-size: 13.5px; font-weight: 400; }
  .rdg-phase[aria-current="true"] .nm { color: var(--c); }
  .rdg-phases.focus .rdg-phase:not([aria-current="true"]) { opacity: .45; }
  .rdg-note { margin: 12px 0 0; font-size: 12.5px; color: var(--ink-3); letter-spacing: .02em; }
  .rdg-stage { position: relative; width: 100%; max-width: 520px; aspect-ratio: 1 / 1; justify-self: end; touch-action: pan-y; cursor: grab; user-select: none;
    --rg-bg: #F8F9F7; --rg-globe: #E4F0EA; --rg-dot: #8FB3A3; --rg-glow: rgba(28,82,62,.16); --rg-fg: #0C100E; --rg-muted: #5E6862;
    --rg-p0: #1C523E; --rg-p1: #2E8B6A; --rg-p2: #7FC9A6; --rg-p3: #2F8FD1; }
  .rdg-stage:active { cursor: grabbing; }
  .rdg-stage canvas { display: block; width: 100%; height: 100%; }
  .rdg { --p0: #1C523E; --p1: #2E8B6A; --p2: #7FC9A6; --p3: #2F8FD1; }
  [data-theme="dark"] .rdg-stage { --rg-bg: #101B17; --rg-globe: #0a2219; --rg-dot: #3f7f68; --rg-glow: rgba(127,201,166,.25); --rg-fg: #EEF4F0; --rg-muted: #8FA096;
    --rg-p0: #7FC9A6; --rg-p1: #3fd6c4; --rg-p2: #9be27a; --rg-p3: #5fb4ff; }
  [data-theme="dark"] .rdg { --p0: #7FC9A6; --p1: #3fd6c4; --p2: #9be27a; --p3: #5fb4ff; }
  [data-theme="dark"] .rdg-phase button:hover { background: var(--tint-2); }
  /* ba bậc thang (R2) */
  .rd2 { position: relative; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; align-items: end; padding-top: 72px; }
  .rd2-line { position: absolute; left: 0; right: 0; top: 0; width: 100%; height: 40%; opacity: .55; }
  .rd2-line path { stroke-dashoffset: 1; stroke-dasharray: 1; transition: stroke-dashoffset 1.6s var(--ease) .2s; }
  .rd2.is-in .rd2-line path { stroke-dashoffset: 0; }
  .rd2-card { position: relative; overflow: hidden; padding: 30px 26px 30px; border-radius: 14px; background: var(--paper); border: 1px solid var(--line); display: flex; flex-direction: column; gap: 12px; margin-bottom: calc(var(--i) * 56px); opacity: 0; transform: translateY(24px); transition: opacity .6s ease, transform .7s var(--ease), box-shadow .3s var(--ease); transition-delay: calc(var(--i) * 160ms + 200ms); }
  .rd2.is-in .rd2-card { opacity: 1; transform: none; }
  .rd2-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-card); }
  .rd2-card.is-now { background: var(--green-deep); border-color: transparent; color: var(--on-dark); }
  .rd2-card.is-now h3 { color: var(--on-dark); }
  .rd2-card.is-now p { color: var(--on-dark-2); }
  .rd2-card.is-now .chip--live { background: rgba(255,255,255,.14); color: #c2efb7; }
  .rd2-n { font-size: 12px; font-weight: 600; letter-spacing: .14em; color: var(--green); }
  .rd2-card.is-now .rd2-n { color: var(--on-dark-3); }
  .rd2-wm { position: absolute; right: 12px; top: -14px; font-size: 110px; font-weight: 700; line-height: 1; letter-spacing: -.05em; color: var(--green); opacity: .07; pointer-events: none; }
  .rd2-card.is-now .rd2-wm { color: #fff; opacity: .06; }
  .rd2-card h3 { font-size: 21px; margin: 0; }
  .rd2-card p { margin: 0; font-size: 15.5px; line-height: 1.65; color: var(--ink-2); }
  [data-theme="dark"] .rd2-card { background: var(--tint-2); }
  [data-theme="dark"] .rd2-card.is-now { background: #0e3a2c; border: 1px solid rgba(255,255,255,.08); }
  @media (max-width: 900px) {
    .rdg-head { grid-template-columns: 1fr; }
    .rdg-stage { justify-self: center; max-width: 440px; order: -1; }
    .rd2 { grid-template-columns: 1fr; align-items: stretch; padding-top: 0; }
    .rd2-line { display: none; }
    .rd2-card { margin-bottom: 0; }
  }

  /* ---------- dải tin cậy: chữ HTML đổi được ngôn ngữ (15/10/2026) ---------- */
  .trust__logos--spread .trust__item { display: inline-flex; align-items: center; gap: 12px; color: #6f7a74; transition: color .3s var(--ease); }
  .trust__logos--spread .trust__item .icon { width: 30px; height: 30px; flex: none; }
  .trust__item div { display: flex; flex-direction: column; gap: 2px; line-height: 1.15; }
  .trust__item b { font-size: 18px; font-weight: 600; color: #596560; letter-spacing: -.01em; white-space: nowrap; transition: color .3s var(--ease); }
  .trust__item small { font-size: 11px; font-weight: 600; letter-spacing: .14em; text-transform: uppercase; color: #8a948f; transition: color .3s var(--ease); }
  .trust__logos--spread .logo-cell:hover .trust__item { color: var(--green); }
  .trust__logos--spread .logo-cell:hover .trust__item b { color: var(--green-deep); }
  .trust__logos--spread .logo-cell:hover .trust__item small { color: var(--green); }
  [data-theme="dark"] .trust__logos--spread .trust__item { color: #7f8c86; }
  [data-theme="dark"] .trust__item b { color: #b9c4be; } [data-theme="dark"] .trust__item small { color: #7f8c86; }
  [data-theme="dark"] .trust__logos--spread .logo-cell:hover .trust__item b { color: #EEF4F0; }
  @media (max-width: 900px) { .trust__logos--spread { justify-content: center; gap: 14px 28px; } .trust__logos--spread .logo-cell { flex: 0 1 auto; } .trust__item b { font-size: 16px; } }

  /* ---------- tiếng Hàn: ngắt dòng theo từ (15/10/2026) ---------- */
  html[lang="ko"] body { word-break: keep-all; overflow-wrap: break-word; }
  html[lang="ko"] h1, html[lang="ko"] h2, html[lang="ko"] h3, html[lang="ko"] blockquote, html[lang="ko"] .lead { text-wrap: pretty; }

  /* ---------- Bản tin công ty: thẻ bài thật (15/10/2026) ---------- */
  .cn-feat { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: clamp(24px, 4vw, 48px); align-items: center; padding: 0 0 32px; margin-bottom: 8px; border-bottom: 1px solid var(--line); }
  .cn-feat .photo { aspect-ratio: 3 / 2; }
  .cn-feat__copy { display: flex; flex-direction: column; gap: 12px; align-items: flex-start; }
  .cn-feat__meta { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; font-size: 13px; color: var(--ink-3); }
  .cn-feat h2 { margin: 0; font-size: clamp(22px, 2.3vw, 30px); line-height: 1.25; letter-spacing: -.01em; }
  .cn-feat h2 a { color: inherit; } .cn-feat h2 a:hover { color: var(--green); }
  @media (max-width: 800px) { .cn-feat { grid-template-columns: 1fr; } }
  .page { animation: pagein .35s var(--ease); }
  @keyframes pagein { from { opacity: .001; transform: translateY(6px); } to { opacity: 1; transform: none; } }
  [id] { scroll-margin-top: 96px; }
  @media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { transition: none !important; animation: none !important; }
  }