:root {
    --paper: #F1FBF5;
    --surface: #FFFFFF;
    --surface-2: #E3F6EC;
    --ink: #0E3A2E;
    --muted: #54756A;
    --line: #D6ECDF;

    --green: #00B37D;
    --green-deep: #00785A;
    --green-soft: #DCF5E9;
    --coral: #FF5A45;
    --coral-deep: #C93B22;
    --coral-soft: #FFE9E4;
    --sun: #FFC53D;
    --sun-ink: #5F4700;

    --font-sans: "Segoe UI", system-ui, -apple-system, Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-mono: Consolas, "Cascadia Mono", "SF Mono", ui-monospace, monospace;

    --maxw: 1200px;
    --radius: 20px;
    --shadow: 0 2px 4px rgba(14,58,46,.06), 0 14px 34px rgba(14,58,46,.10);
    --shadow-lift: 0 6px 12px rgba(14,58,46,.10), 0 26px 54px rgba(14,58,46,.18);
    color-scheme: light;
  }
  :root[data-theme="dark"] {
    --paper: #0C1B16;
    --surface: #142520;
    --surface-2: #1B332A;
    --ink: #EAF7EF;
    --muted: #9DB4A9;
    --line: #27423A;
    --green: #2BD9A4;
    --green-deep: #5FE8BE;
    --green-soft: #14382C;
    --coral: #FF7A66;
    --coral-deep: #FF9585;
    --coral-soft: #3A1F1A;
    --sun: #FFD35C;
    --sun-ink: #201700;
    --shadow: 0 2px 4px rgba(0,0,0,.35), 0 14px 34px rgba(0,0,0,.4);
    --shadow-lift: 0 6px 12px rgba(0,0,0,.4), 0 26px 54px rgba(0,0,0,.55);
    color-scheme: dark;
  }
  :root[data-theme="light"] { color-scheme: light; }

  * { box-sizing: border-box; }
  html { scroll-padding-top: 84px; }
  body { margin: 0; background: var(--paper); }
  h1, h2, h3, h4 { overflow-wrap: break-word; }
  :is(a, button):focus-visible { outline: 3px solid var(--green-deep); outline-offset: 2px; }
  .on-grad :is(a, button):focus-visible { outline: 3px solid #fff; outline-offset: 2px; }

  .page {
    background: var(--paper); color: var(--ink);
    font-family: var(--font-sans); font-size: 16.5px; line-height: 1.6;
    -webkit-font-smoothing: antialiased; min-height: 100vh;
    overflow-x: hidden; overflow-x: clip;
  }
  .wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 28px; }
  a { color: inherit; text-decoration: none; }

  .skip-link {
    position: absolute; left: -9999px; top: 0; z-index: 100;
    background: var(--surface); color: var(--green-deep);
    padding: 10px 16px; border-radius: 0 0 12px 0; font-weight: 700; font-size: 14px;
  }
  .skip-link:focus { left: 0; }

  mark.hl {
    background: var(--sun); color: var(--sun-ink);
    padding: 2px 8px 3px; border-radius: 8px;
    box-decoration-break: clone; -webkit-box-decoration-break: clone;
  }

  /* ---------- Topbar ---------- */
  .topbar { position: sticky; top: 0; z-index: 40; background: var(--paper); border-bottom: 1px solid var(--line); }
  .topbar-inner { display: flex; align-items: center; justify-content: space-between; gap: 16px; height: 70px; }
  .brand { display: flex; align-items: center; gap: 8px; font-weight: 800; font-size: 21px; letter-spacing: -.02em; white-space: nowrap; }
  .brand .hl { transform: rotate(-1.5deg); display: inline-block; }
  .actions { display: flex; align-items: center; gap: 10px; }
  .icon-btn {
    width: 42px; height: 42px; display: grid; place-items: center;
    border: 1px solid var(--line); border-radius: 50%;
    background: var(--surface); cursor: pointer; color: var(--ink);
  }
  .icon-btn svg { width: 17px; height: 17px; }
  .icon-btn .ic-sun { display: none; }
  :root[data-theme="dark"] .icon-btn .ic-sun { display: block; }
  :root[data-theme="dark"] .icon-btn .ic-moon { display: none; }
  .btn-follow {
    display: inline-flex; align-items: center; gap: 8px;
    font-size: 14.5px; font-weight: 700; color: #fff;
    background: var(--coral-deep); border: none; padding: 12px 22px;
    border-radius: 999px; cursor: pointer; white-space: nowrap;
    box-shadow: 0 6px 16px rgba(201,59,34,.35);
  }
  :root[data-theme="dark"] .btn-follow { color: #3A1208; }
  .btn-follow:hover { filter: brightness(1.07); }
  .btn-follow svg { width: 15px; height: 15px; fill: currentColor; }

  /* ---------- Ticker ---------- */
  .ticker {
    background: var(--sun); color: var(--sun-ink); overflow: hidden; border-bottom: 1px solid var(--line);
    -webkit-mask-image: linear-gradient(90deg, transparent, #000 28px, #000 calc(100% - 28px), transparent);
    mask-image: linear-gradient(90deg, transparent, #000 28px, #000 calc(100% - 28px), transparent);
  }
  .ticker-track { display: inline-flex; white-space: nowrap; padding: 8px 0; will-change: transform; }
  .ticker-track > span { font-family: var(--font-sans); font-size: 12px; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; padding-right: 12px; }

  /* ---------- Pill chủ đề ---------- */
  .topics { border-bottom: 1px solid var(--line); background: var(--surface); }
  .topics-row { display: flex; align-items: center; gap: 10px; }
  .topics-inner {
    display: flex; gap: 8px; overflow-x: auto; scrollbar-width: none; padding: 10px 0;
    flex: 1 1 auto; min-width: 0; cursor: grab;
    -webkit-mask-image: linear-gradient(to right, #000 92%, transparent);
    mask-image: linear-gradient(to right, #000 92%, transparent);
  }
  .topics-inner.dang-keo { cursor: grabbing; user-select: none; }
  .topics-inner::-webkit-scrollbar { display: none; }
  /* Desktop: hien thanh truot mong o duoi (van keo-vuot binh thuong) */
  @media (hover: hover) and (pointer: fine) {
    .topics-inner { scrollbar-width: thin; scrollbar-color: var(--green) transparent; padding-bottom: 8px; }
    .topics-inner::-webkit-scrollbar { display: block; height: 6px; }
    .topics-inner::-webkit-scrollbar-thumb { background: var(--green); border-radius: 999px; }
    .topics-inner::-webkit-scrollbar-track { background: transparent; margin: 0 24px; }
  }
  /* Nut mui ten + menu xo xuong xem tat ca chu de */
  .topics-menu { position: relative; flex: 0 0 auto; }
  .topics-menu-btn {
    display: inline-flex; align-items: center; justify-content: center;
    width: 38px; height: 38px; border-radius: 999px; cursor: pointer;
    border: 1px solid var(--line); background: var(--surface); color: var(--muted);
    transition: color .15s, background .15s, border-color .15s;
  }
  .topics-caret { transition: transform .2s ease; }
  .topics-menu-panel {
    position: absolute; top: calc(100% + 8px); left: 0; z-index: 90;
    min-width: 240px; max-height: min(70vh, 460px); overflow-y: auto;
    background: var(--surface); border: 1px solid var(--line); border-radius: 16px;
    box-shadow: 0 16px 40px rgba(17,24,20,.18); padding: 8px;
    display: none; flex-direction: column; gap: 2px;
  }
  .topics-menu-panel::before { content: ""; position: absolute; top: -8px; left: 0; right: 0; height: 8px; }
  .topics-menu-panel a { display: flex; width: 100%; border-radius: 10px; }
  .topics-menu:hover .topics-menu-panel,
  .topics-menu:focus-within .topics-menu-panel,
  .topics-menu.mo .topics-menu-panel { display: flex; }
  .topics-menu:hover .topics-menu-btn,
  .topics-menu:focus-within .topics-menu-btn,
  .topics-menu.mo .topics-menu-btn { color: var(--green-deep); background: var(--green-soft); border-color: var(--green); }
  .topics-menu:hover .topics-caret,
  .topics-menu.mo .topics-caret { transform: rotate(180deg); }
  .topics a {
    white-space: nowrap; font-size: 14px; font-weight: 600; color: var(--muted);
    padding: 8px 16px; border-radius: 999px; border: 1px solid transparent;
    display: inline-flex; align-items: center; gap: 7px;
  }
  .topics a:hover { color: var(--ink); background: var(--surface-2); }
  .topics a[aria-current="page"] { color: var(--green-deep); background: var(--green-soft); border-color: var(--green); }
  .topics .em { font-size: 15px; }

  /* ---------- SÂN KHẤU BẢN TIN (trình diễn ngang) ---------- */
  .stage-sec { padding: 34px 0 56px; }
  .stage {
    position: relative; border-radius: 28px; overflow: hidden;
    background:
      radial-gradient(80% 110% at 100% 0%, rgba(255,246,160,.30), transparent 55%),
      linear-gradient(125deg, #96D243, #5BAB2F 58%, #418F27);
    color: #fff; padding: 34px 36px 46px;
    box-shadow: var(--shadow-lift);
  }
  .stage .leaf { position: absolute; z-index: 0; pointer-events: none; }
  .stage .leaf-1 { top: -24px; right: -34px; width: 300px; height: 330px; transform: rotate(10deg); }
  .stage .leaf-2 { bottom: -40px; left: -46px; width: 250px; height: 275px; transform: rotate(-165deg); opacity: .75; }
  .stage > :not(.leaf) { position: relative; z-index: 1; }
  :root[data-theme="dark"] .stage {
    background:
      radial-gradient(90% 120% at 100% 0%, rgba(255,197,61,.16), transparent 55%),
      radial-gradient(70% 110% at 0% 100%, rgba(255,90,69,.16), transparent 55%),
      linear-gradient(120deg, #05382C, #0B6B50);
  }
  .stage-head { display: flex; align-items: center; justify-content: space-between; gap: 14px; flex-wrap: wrap; margin-bottom: 22px; }
  .live {
    display: inline-flex; align-items: center; gap: 9px;
    font-family: var(--font-sans); font-size: 12px; font-weight: 700;
    letter-spacing: .16em; text-transform: uppercase;
    background: rgba(30,74,14,.55); border: 1px solid rgba(255,255,255,.45);
    padding: 8px 15px; border-radius: 999px; color: #fff;
  }
  .live i { width: 9px; height: 9px; border-radius: 50%; background: var(--coral); display: block; }

  .stage-grid { display: grid; grid-template-columns: 1fr 1.25fr; gap: 34px; align-items: center; }
  .stage-copy h1 {
    font-size: clamp(1.9rem, 3.9vw, 2.9rem); font-weight: 800;
    letter-spacing: -.03em; line-height: 1.14; margin: 0 0 10px; text-wrap: balance; color: #fff;
    text-shadow: 0 2px 8px rgba(35,84,14,.5);
  }
  .stage-copy h1 .hl { display: inline-block; }
  .stage-copy p { margin: 0 0 18px; color: #fff; font-size: 16.5px; max-width: 30em; text-shadow: 0 1px 4px rgba(35,84,14,.45); }
  .stage-meta { font-family: var(--font-sans); font-size: 11.5px; font-weight: 600; letter-spacing: .12em; text-transform: uppercase; color: #fff; text-shadow: 0 1px 2px rgba(0,0,0,.25); display: inline-flex; align-items: center; gap: 8px; }
  .stage-meta .beat { font-size: 14px; display: inline-block; }

  /* Player bản tin — video NGANG 16:9 */
  .player {
    display: grid; place-items: center;
    border-radius: 18px; overflow: hidden;
    position: relative; aspect-ratio: 16 / 9; min-height: 210px; cursor: pointer;
    background: linear-gradient(115deg, #00C287, #00A9A5 48%, #3E8EE8);
    box-shadow: 0 18px 44px rgba(0,0,0,.35);
  }
  .player::before {
    content: ""; position: absolute; inset: -30%; z-index: 0;
    background: linear-gradient(115deg, #00C287, #00A9A5 48%, #3E8EE8);
  }
  .play-big {
    width: 82px; height: 82px; border-radius: 50%; background: #fff;
    display: grid; place-items: center; box-shadow: 0 12px 32px rgba(0,0,0,.35);
    position: relative; z-index: 2;
  }
  .play-big svg { width: 30px; height: 30px; fill: var(--coral-deep); margin-left: 5px; }
  .play-big::after { content: ""; position: absolute; inset: -11px; border-radius: 50%; border: 3px solid rgba(255,197,61,.8); }
  .player .p-top { position: absolute; top: 14px; left: 14px; right: 84px; z-index: 2; }
  .chip {
    display: inline-flex; align-items: center; gap: 6px;
    font-family: var(--font-sans); font-size: 10.5px; font-weight: 700;
    letter-spacing: .1em; text-transform: uppercase;
    padding: 6px 11px; border-radius: 999px;
  }
  .chip.on-dark { background: rgba(255,255,255,.93); color: #0E3A2E; }
  .chip.moi { background: var(--sun); color: #201700; }
  .chip.research { background: var(--coral-soft); color: #A82E17; }
  :root[data-theme="dark"] .chip.research { color: var(--coral-deep); }
  .player .duration {
    position: absolute; top: 14px; right: 14px; z-index: 3;
    font-family: var(--font-mono); font-size: 12px; font-weight: 600; color: #fff;
    background: rgba(0,0,0,.5); padding: 4px 9px; border-radius: 7px;
    font-variant-numeric: tabular-nums;
  }
  .player .p-bottom {
    position: absolute; left: 0; right: 0; bottom: 0; z-index: 2;
    padding: 46px 20px 16px;
    background: linear-gradient(transparent, rgba(0,30,20,.86));
    color: #fff; text-align: left; width: 100%;
  }
  .player .p-bottom h2 { margin: 0 0 3px; font-size: clamp(17px, 2vw, 23px); font-weight: 800; letter-spacing: -.02em; line-height: 1.22; }
  .player .p-bottom .meta { font-size: 12.5px; color: rgba(255,255,255,.9); }

  /* Hàng "Đáng chú ý" — thẻ dọc 9:16 xếp SO LE */
  .notable-head {
    margin: 40px 0 18px; font-size: 15px; font-weight: 800; color: #fff;
    display: flex; align-items: center; gap: 8px;
  }
  .notable { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
  .notable .vcard:nth-child(1) { transform: rotate(-2deg) translateY(10px); }
  .notable .vcard:nth-child(2) { transform: rotate(1.4deg) translateY(-14px); }
  .notable .vcard:nth-child(3) { transform: rotate(-1.2deg) translateY(16px); }
  .notable .vcard:nth-child(4) { transform: rotate(2deg) translateY(-8px); }

  /* ---------- THẺ VIDEO DỌC 9:16 (một markup dùng mọi nơi) ---------- */
  .vcard {
    position: relative; display: block; aspect-ratio: 9 / 16; min-height: 200px;
    border-radius: 16px; overflow: hidden; box-shadow: var(--shadow);
  }
  .vcard .vmotif { position: absolute; inset: 0; width: 100%; height: 100%; opacity: .5; }
  .vcard .vmotif :is(path, circle, rect) { stroke: rgba(255,255,255,.85); stroke-width: 3; fill: none; stroke-linecap: round; stroke-linejoin: round; }
  .vcard .vchip { position: absolute; top: 10px; left: 10px; z-index: 2; }
  .vcard .vchip .chip { font-size: 10.5px; padding: 6px 10px; line-height: 1.1; }
  .vcard .moi { position: absolute; top: 10px; right: 10px; z-index: 2; }
  .vcard .vplay {
    position: absolute; left: 50%; top: 42%; transform: translate(-50%, -50%); z-index: 2;
    width: 46px; height: 46px; border-radius: 50%;
    background: rgba(255,255,255,.93); display: grid; place-items: center;
  }
  .vcard .vplay svg { width: 16px; height: 16px; fill: #0E3A2E; margin-left: 2px; }
  .vcard .vd {
    position: absolute; right: 10px; bottom: 10px; z-index: 3;
    font-family: var(--font-mono); font-size: 11px; font-weight: 600; color: #fff;
    background: rgba(0,0,0,.55); padding: 2px 7px; border-radius: 6px;
    font-variant-numeric: tabular-nums;
  }
  .vcard .vt {
    position: absolute; left: 0; right: 0; bottom: 0; z-index: 2;
    padding: 60px 12px 14px;
    background: linear-gradient(transparent, rgba(0,25,15,.6) 30%, rgba(0,25,15,.94));
    color: #fff;
  }
  .vcard .vt b {
    display: -webkit-box; -webkit-box-orient: vertical; -webkit-line-clamp: 3; overflow: hidden;
    font-size: 14px; font-weight: 800; line-height: 1.3; letter-spacing: -.01em;
  }
  .vcard .vt i { display: block; font-style: normal; font-size: 11px; color: rgba(255,255,255,.85); margin-top: 4px; padding-right: 52px; }
  .vcard:hover .vt b { text-decoration: underline; text-decoration-color: var(--sun); text-underline-offset: 3px; }

  /* gradient nền — [WP] đổi lớp g1–g6 khi đăng video */
  .g1 { background: linear-gradient(160deg, #19C68F, #00795C); }
  .g2 { background: linear-gradient(160deg, #FF8A5C, #E0402B); }
  .g3 { background: linear-gradient(160deg, #FFC838, #E8901A); }
  .g4 { background: linear-gradient(160deg, #38B6FF, #1B6FD0); }
  .g5 { background: linear-gradient(160deg, #A98BFF, #6A4DD3); }
  .g6 { background: linear-gradient(160deg, #FF7BA9, #D6386F); }

  /* ---------- Section chung ---------- */
  .section { padding: 44px 0; }
  .section.alt { background: var(--surface); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
  .sec-head { display: flex; flex-wrap: wrap; align-items: flex-end; justify-content: space-between; gap: 16px; margin-bottom: 24px; }
  .sec-head .eyebrow { font-size: 13px; font-weight: 700; color: var(--coral-deep); }
  .sec-head h2 { font-size: clamp(22px, 2.6vw, 27px); font-weight: 800; letter-spacing: -.02em; margin: 4px 0 0; }
  .see-all { font-size: 14px; font-weight: 700; color: var(--green-deep); white-space: nowrap; }
  .see-all:hover { text-decoration: underline; text-underline-offset: 3px; }
  .shelf-hint { font-family: var(--font-sans); font-weight: 600; font-size: 11.5px; letter-spacing: .1em; text-transform: uppercase; color: var(--muted); margin: 0 0 6px; }

  /* Kệ shorts cuộn ngang */
  .shelf {
    display: grid; grid-auto-flow: column; grid-auto-columns: clamp(180px, 22vw, 215px);
    gap: 20px; overflow-x: auto; margin: 0 -20px; padding: 24px 20px 40px;
    scroll-snap-type: x proximity; scroll-padding-inline: 20px; scrollbar-width: thin;
  }
  .shelf > .vcard { scroll-snap-align: start; }
  .sec-tools { display: flex; align-items: center; gap: 14px; }
  .shelf-nav { display: flex; gap: 8px; }
  .shelf-btn {
    width: 42px; height: 42px; display: grid; place-items: center;
    border: 1px solid var(--line); border-radius: 50%;
    background: var(--surface); cursor: pointer; color: var(--ink);
  }
  .shelf-btn:hover { background: var(--surface-2); }
  .shelf-btn:disabled { opacity: .35; cursor: default; }
  .shelf-btn svg { width: 16px; height: 16px; fill: none; stroke: currentColor; stroke-width: 2.5; stroke-linecap: round; stroke-linejoin: round; }
  @media (hover: none) {
    .shelf { scroll-snap-type: x mandatory; }
    .shelf-nav { display: none; }
  }

  /* series — bộ bài xếp chồng */
  .series-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
  .series {
    position: relative; z-index: 0; border-radius: var(--radius);
    padding: 24px; color: #fff; min-height: 158px;
    display: flex; flex-direction: column; justify-content: flex-end; gap: 4px;
    box-shadow: var(--shadow), inset 0 0 0 999px rgba(0, 20, 12, .14);
    text-shadow: 0 1px 2px rgba(0,0,0,.25);
  }
  .series::before, .series::after {
    content: ""; position: absolute; inset: 0; border-radius: var(--radius); z-index: -1;
    background: inherit; opacity: .45; transform: rotate(2.2deg) translateY(-8px) scale(.97);
  }
  .series::after { opacity: .22; transform: rotate(-2deg) translateY(-15px) scale(.94); }
  .series .badge { font-size: 22px; position: absolute; top: 16px; right: 16px; }
  .series .count { font-family: var(--font-sans); font-weight: 700; font-size: 11px; letter-spacing: .12em; text-transform: uppercase; }
  .series h3 { margin: 0; font-size: 21px; font-weight: 800; letter-spacing: -.02em; line-height: 1.2; }
  .series p { margin: 2px 0 0; font-size: 14px; }

  /* dịch nghiên cứu */
  .research-strip {
    display: grid; grid-template-columns: auto 1fr auto; gap: 20px; align-items: center;
    background: var(--surface); border: 1px solid var(--line); border-left: 6px solid var(--coral);
    border-radius: var(--radius); padding: 22px 26px; box-shadow: var(--shadow);
  }
  .research-strip h3 { margin: 4px 0 4px; font-size: 18.5px; font-weight: 800; letter-spacing: -.015em; }
  .research-strip .src { font-family: var(--font-sans); font-size: 12.5px; color: var(--muted); overflow-wrap: anywhere; }
  .research-strip .go {
    font-size: 14px; font-weight: 700; color: var(--coral-deep); white-space: nowrap;
    padding: 11px 20px; border: 1.5px solid var(--coral); border-radius: 999px; justify-self: start;
  }
  .research-strip .go:hover { background: var(--coral-soft); }

  /* CTA */
  .cta {
    margin: 48px 0; padding: 46px 40px; border-radius: 26px; position: relative; overflow: hidden;
    background:
      radial-gradient(rgba(255,255,255,.16) 2px, transparent 2.6px),
      linear-gradient(135deg, #008159, #006D66);
    background-size: 26px 26px, cover;
    color: #fff; text-align: center;
  }
  .cta h2 { margin: 0 0 8px; font-size: clamp(24px, 3.4vw, 34px); font-weight: 800; letter-spacing: -.02em; }
  .cta p { margin: 0 auto 22px; max-width: 38em; color: rgba(255,255,255,.95); font-size: 16px; }
  .cta-btns { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
  .cta-btn {
    display: inline-flex; align-items: center; gap: 9px;
    font-size: 15px; font-weight: 800; padding: 14px 28px; border-radius: 999px;
  }
  .cta-btn svg { width: 17px; height: 17px; fill: currentColor; }
  .cta-btn.yt { background: #fff; color: #C4210B; }
  .cta-btn.tt { background: rgba(0,0,0,.42); color: #fff; border: 1px solid rgba(255,255,255,.4); }
  .cta-btn:hover { filter: brightness(1.06); }
  .cta .note {
    margin-top: 18px; font-family: var(--font-sans); font-weight: 600; font-size: 11.5px; letter-spacing: .12em;
    text-transform: uppercase; color: #fff; display: inline-flex; align-items: center; gap: 8px;
  }
  .cta .beat { display: inline-block; font-size: 15px; }

  /* footer */
  .footer { border-top: 1px solid var(--line); background: var(--surface); padding: 42px 0 30px; }
  .foot-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 30px; }
  .foot-head { font-family: var(--font-sans); font-size: 11.5px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: var(--muted); margin: 0 0 12px; }
  .foot-grid a { display: block; font-size: 14px; color: var(--ink); padding: 4px 0; }
  .foot-grid a:hover { color: var(--green-deep); }
  .foot-desc { color: var(--muted); font-size: 14px; margin: 14px 0 0; max-width: 32em; }
  .disclaimer {
    margin-top: 30px; padding: 16px 18px; border: 1.5px dashed var(--line);
    border-radius: var(--radius); background: var(--paper);
    font-size: 13px; color: var(--muted); line-height: 1.6; display: flex; gap: 12px;
  }
  .disclaimer svg { width: 20px; height: 20px; flex-shrink: 0; stroke: var(--coral); fill: none; }
  .foot-bottom { margin-top: 26px; padding-top: 20px; border-top: 1px solid var(--line); font-size: 13px; color: var(--muted); }

  /* ---------- Responsive ---------- */
  @media (max-width: 980px) {
    .stage-grid { grid-template-columns: 1fr; gap: 26px; }
    .stage-copy p { max-width: none; }
    .notable {
      grid-template-columns: unset;
      grid-auto-flow: column; grid-auto-columns: minmax(150px, 170px);
      overflow-x: auto; margin: 0 -16px; padding: 18px 16px 30px;
      scroll-snap-type: x proximity; scroll-padding-inline: 16px;
    }
    .notable .vcard { scroll-snap-align: start; }
    .notable .vcard:nth-child(odd) { transform: rotate(-1.2deg) translateY(8px); }
    .notable .vcard:nth-child(even) { transform: rotate(1.2deg) translateY(-6px); }
  }
  @media (max-width: 920px) {
    .series-grid { grid-template-columns: repeat(2, 1fr); }
    .foot-grid { grid-template-columns: 1fr 1fr; }
    .foot-grid > div:first-child { grid-column: 1 / -1; }
  }
  @media (max-width: 760px) {
    .stage { padding: 26px 20px 36px; }
    .research-strip { grid-template-columns: 1fr; gap: 10px; justify-items: start; }
  }
  @media (max-width: 600px) {
    .series-grid, .foot-grid { grid-template-columns: 1fr; }
    .wrap { padding: 0 18px; }
    .brand { font-size: 18px; }
    .actions { gap: 6px; }
    .btn-follow { padding: 10px 15px; font-size: 13.5px; }
    .cta { padding: 30px 20px; }
    .shelf { grid-auto-columns: minmax(165px, 190px); margin: 0 -18px; padding: 24px 18px 36px; scroll-padding-inline: 18px; }
    .shelf-nav { display: none; }
    .player { min-height: 0; }
  }
  @media (max-width: 480px) {
    .btn-search { display: none; }
    .brand { font-size: 16px; }
    .btn-follow .bf-label { display: none; }
    .btn-follow { width: 42px; height: 42px; padding: 0; justify-content: center; border-radius: 50%; }
  }
  @media (max-width: 400px) {
    .player .duration { top: auto; bottom: 14px; }
    .player .p-bottom { padding-right: 76px; }
    .player .p-top { right: 14px; }
  }

  /* ---------- Chuyển động: mặc định tĩnh ---------- */
  @media (prefers-reduced-motion: no-preference) {
    .vcard, .series, .play-big { transition: transform .22s ease, box-shadow .22s ease; }
    .player::before { animation: pan 14s ease-in-out infinite alternate; }
    .play-big::after { animation: pulse 2.856s ease-out infinite; }
    .live i { animation: blink 1.904s ease-in-out infinite; }
    .ticker-track { animation: tick 52s linear infinite; }
    .beat { animation: lubdub 952ms ease-in-out infinite; transform-origin: center; }
    .vcard:focus-visible { transform: translateY(-8px); box-shadow: var(--shadow-lift); }
    .notable .vcard:focus-visible { transform: rotate(0deg) translateY(-10px) scale(1.03); }
    .vcard:focus-visible .vmotif :is(path, circle, rect) { animation: draw .8s ease-out forwards; }
  }
  @media (hover: hover) and (prefers-reduced-motion: no-preference) {
    .vcard:hover { transform: translateY(-8px); box-shadow: var(--shadow-lift); }
    .notable .vcard:hover { transform: rotate(0deg) translateY(-10px) scale(1.03); }
    .series:hover { transform: translateY(-5px); }
    .player:hover .play-big { transform: scale(1.07); }
    .vcard:hover .vmotif :is(path, circle, rect) { animation: draw .8s ease-out forwards; }
  }
  @media (prefers-reduced-motion: reduce) {
    .ticker-track > span[aria-hidden] { display: none; }
  }
  @keyframes pan { from { transform: translate(-5%, -3%); } to { transform: translate(5%, 3%); } }
  @keyframes pulse { 0% { transform: scale(.85); opacity: 1; } 100% { transform: scale(1.35); opacity: 0; } }
  @keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: .35; } }
  @keyframes tick { to { transform: translateX(-50%); } }
  @keyframes draw { from { stroke-dasharray: 100; stroke-dashoffset: 100; } to { stroke-dasharray: 100; stroke-dashoffset: 0; } }
  @keyframes lubdub { 0%, 100% { transform: scale(1); } 12% { transform: scale(1.25); } 24% { transform: scale(1); } 38% { transform: scale(1.15); } 50% { transform: scale(1); } }

  @media print {
    .ticker, .actions, .cta-btns, .skip-link, .play-big, .vplay { display: none; }
    .topbar { position: static; }
    .stage, .cta { background: none; color: var(--ink); box-shadow: none; }
    .stage-copy h1, .stage-copy p, .notable-head, .live, .stage-note, .stage-meta, .vcard .vt, .player .p-bottom { color: var(--ink); text-shadow: none; }
    .player .duration, .vcard .vd { color: var(--ink); background: none; }
  }


/* Nen hero "Ban tin suc khoe": anh nui tre thuy mac (media id 70) */
.stage.on-grad {
  background:
    linear-gradient(180deg, rgba(6,64,43,.30), rgba(6,64,43,.42)),
    url("https://suckhoedehieu.com/wp-content/uploads/2026/07/nen-nui-tre-hero.jpg") center 72% / cover no-repeat;
}