/* =====================================================================
   SONG LINH PLUS — songlinhplus.com
   Giao diện SÁNG: nền trắng / off-white xanh chủ đạo (60)
   + section nền forest kính mờ làm điểm nhấn (30) + gạch/vàng (10)
   Font: Phudu (tiêu đề) · Work Sans (nội dung)
   ===================================================================== */

:root {
  /* Brand */
  --green: #2FA956;
  --green-bright: #46D67C;
  --green-dark: #1E7A3D;
  --forest: #0F3520;
  --forest-2: #14291C;
  --brick: #862518;
  --brick-bright: #B5402E;
  --gold: #E0A126;

  /* Neutral (light) */
  --white: #FFFFFF;
  --off: #F2F8F3;
  --card: #E6F4EC;
  --ink: #14231A;
  --body: #3B4A41;
  --grey: #6B7A70;
  --line: #DCE9E0;

  /* Layout */
  --radius-sm: 10px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 26px;
  --shadow-xs: 0 2px 8px rgba(15, 53, 32, .05);
  --shadow: 0 10px 28px rgba(15, 53, 32, .08);
  --shadow-lg: 0 20px 46px rgba(15, 53, 32, .14);
  --wrap: 1200px;
  --header-h: 88px;

  --font-display: "Phudu", "Work Sans", Arial, sans-serif;
  --font-body: "Work Sans", "Be Vietnam Pro", Arial, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 12px); }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.68;
  color: var(--body);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  color: var(--forest);
  line-height: 1.1;
  letter-spacing: .005em;
  margin: 0 0 14px;
  text-transform: uppercase;
}
h1 { font-size: clamp(31px, 4.9vw, 54px); font-weight: 800; }
h2 { font-size: clamp(25px, 3.4vw, 40px); font-weight: 700; }
h3 { font-size: 19px; font-weight: 700; color: var(--ink); }
h4 { font-size: 16px; font-weight: 700; color: var(--ink); }
.g { color: var(--green); }
.nowrap { white-space: nowrap; }
p { margin: 0 0 14px; }
ul, ol { margin: 0; padding: 0; list-style: none; }
a { color: var(--green-dark); text-decoration: none; }
a:hover { color: var(--green); }
strong { color: var(--ink); font-weight: 700; }

blockquote {
  margin: 24px 0 0; padding: 18px 22px;
  background: var(--card); border-left: 3px solid var(--green);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  font-style: italic; font-size: 18px; color: var(--forest);
}

:focus-visible { outline: 2px solid var(--green); outline-offset: 3px; border-radius: 6px; }

.skip-link { position: absolute; left: -9999px; top: 0; z-index: 300; background: var(--forest); color: #fff; padding: 12px 18px; font-weight: 700; }
.skip-link:focus { left: 0; }

.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 22px; }
.wrap-narrow { max-width: 860px; }

/* ---------- Eyebrow pill ---------- */
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 12px; font-weight: 700; letter-spacing: .2em; text-transform: uppercase;
  color: var(--green-dark); background: var(--card);
  border: 1px solid #C4E4D1; border-radius: 40px;
  padding: 7px 16px; margin: 0 0 18px;
}
.eyebrow::before { content: ""; flex: 0 0 6px; width: 6px; height: 6px; border-radius: 50%; background: var(--green); }
.muted { color: var(--grey); font-size: 15px; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  font-family: var(--font-body); font-weight: 700; font-size: 15.5px;
  padding: 13px 24px; border-radius: var(--radius-sm); border: 1.5px solid transparent;
  cursor: pointer; text-decoration: none;
  transition: transform .18s ease, box-shadow .18s ease, background .18s ease, color .18s ease, border-color .18s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn-lg { padding: 16px 30px; font-size: 16.5px; }
.btn-sm { padding: 10px 18px; font-size: 14px; }
.btn-block { width: 100%; }
.btn-primary { background: var(--green); color: #fff; box-shadow: 0 8px 22px rgba(47, 169, 86, .26); }
.section-dark .btn-primary { background: linear-gradient(135deg, #46D67C, var(--green)); color: #06280F; }
.section-dark .btn-primary:hover { background: linear-gradient(135deg, #5FE291, #33B25C); color: #06280F; }
.btn-primary:hover { background: var(--green-dark); color: #fff; box-shadow: 0 14px 30px rgba(30, 122, 61, .3); }
.btn-ghost { background: #fff; color: var(--green-dark); border-color: var(--green); }
.btn-ghost:hover { background: var(--card); color: var(--green-dark); }
.btn-outline-light { background: rgba(255, 255, 255, .13); color: #FFFFFF; border-color: rgba(255, 255, 255, .5); }
.btn-outline-light:hover { background: rgba(255, 255, 255, .22); color: #fff; border-color: #fff; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: transparent; border: 0; padding: 14px 0;
  transition: padding .25s ease;
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between; gap: 18px;
  min-height: 60px; padding: 7px 8px 7px 22px; border-radius: 999px;
  background: rgba(8, 30, 19, .8);
  border: 1px solid rgba(146, 232, 178, .3);
  box-shadow: 0 14px 36px rgba(6, 22, 13, .22), inset 0 1px 0 rgba(255, 255, 255, .12);
  backdrop-filter: blur(20px) saturate(170%); -webkit-backdrop-filter: blur(20px) saturate(170%);
  transition: background .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.site-header.is-scrolled { padding: 8px 0; }
.site-header.is-scrolled .header-inner {
  background: rgba(9, 32, 20, .84);
  box-shadow: 0 16px 40px rgba(6, 22, 13, .34), inset 0 1px 0 rgba(255, 255, 255, .14);
}
.brand img { width: 96px; height: auto; }
.nav { display: flex; align-items: center; gap: 22px; }
.nav a {
  position: relative; font-size: 13.5px; font-weight: 700; letter-spacing: .06em; text-transform: uppercase;
  color: #CFE9D9; padding: 8px 2px;
}
.nav a::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 2px; border-radius: 2px;
  background: linear-gradient(90deg, var(--green-bright), var(--gold));
  transform: scaleX(0); transform-origin: left; transition: transform .22s ease;
}
.nav a:hover { color: #fff; }
.nav a:hover::after, .nav a.is-active::after { transform: scaleX(1); }
.nav a.is-active { color: var(--green-bright); }
.nav a.nav-cta {
  color: #fff; padding: 12px 24px; font-size: 13.5px; letter-spacing: .08em; border-radius: 999px;
  background: var(--brick); box-shadow: 0 8px 20px rgba(134, 37, 24, .3);
}
.nav a.nav-cta:hover { color: var(--brick); background: var(--gold); box-shadow: 0 12px 26px rgba(224, 161, 38, .42); }
.nav-cta::after { display: none; }
.nav-toggle { display: none; }

/* ---------- Hero ---------- */
.hero { position: relative; padding: clamp(44px, 6vw, 82px) 0 clamp(52px, 7vw, 88px); overflow: hidden; background: var(--white); }
.hero::before, .hero::after { content: ""; position: absolute; pointer-events: none; border-radius: 50%; }
.hero::before { width: 860px; height: 860px; top: -430px; right: -220px; background: radial-gradient(circle, rgba(47, 169, 86, .16), transparent 62%); }
.hero::after { width: 620px; height: 620px; bottom: -340px; left: -200px; background: radial-gradient(circle, rgba(134, 37, 24, .1), transparent 65%); }
.hero-grid { position: relative; display: grid; grid-template-columns: 1.06fr .94fr; gap: clamp(30px, 5vw, 58px); align-items: center; }
.hero h1 { margin-bottom: 20px; }
/* H1 xoay vòng: các câu xếp chồng cùng ô lưới nên không làm nhảy bố cục */
.headline-rotator { display: grid; }
.headline {
  grid-area: 1 / 1; opacity: 0; transform: translateY(14px);
  transition: opacity .55s ease, transform .55s ease; pointer-events: none;
}
.headline.is-active { opacity: 1; transform: none; pointer-events: auto; }
@media (prefers-reduced-motion: reduce) {
  .headline { transition: none; }
}
.lead { font-size: clamp(16.5px, 1.35vw, 18.5px); max-width: 58ch; }
.dna-pills { display: flex; flex-wrap: wrap; gap: 10px; margin: 22px 0 28px; }
.pill {
  font-size: 13px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase;
  padding: 9px 18px; border-radius: 40px; color: var(--green-dark);
  background: var(--card); border: 1px solid #C4E4D1;
}
.pill-accent { color: var(--brick); background: #FBEDEA; border-color: #E9BEB4; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.hero-note { margin-top: 22px; font-size: 14.5px; color: var(--grey); }

.hero-media { position: relative; }
.hero-photo { border-radius: var(--radius-xl); box-shadow: var(--shadow-lg); }

/* ---------- Surfaces ---------- */
.panel { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg); box-shadow: var(--shadow-xs); }
.glass {
  background: linear-gradient(155deg, rgba(255, 255, 255, .17), rgba(255, 255, 255, .07));
  border: 1px solid rgba(255, 255, 255, .24);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .26), 0 16px 40px rgba(0, 0, 0, .26);
  backdrop-filter: blur(16px) saturate(150%); -webkit-backdrop-filter: blur(16px) saturate(150%);
  border-radius: var(--radius-lg);
}

/* ---------- Sections ---------- */
.section { position: relative; padding: clamp(54px, 7vw, 96px) 0; }
.section-soft { background: var(--off); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.section-dark {
  color: rgba(233, 245, 237, .82);
  background:
    radial-gradient(820px 380px at 12% -10%, rgba(47, 169, 86, .3), transparent 66%),
    radial-gradient(680px 360px at 92% 110%, rgba(181, 64, 46, .2), transparent 62%),
    linear-gradient(155deg, #0A2716 0%, var(--forest) 50%, #123F27 100%);
}
.section-dark h2, .section-dark h3, .section-dark h4 { color: #fff; }
.section-dark strong { color: #fff; }
.section-dark .eyebrow { color: #8FE3AC; background: rgba(255, 255, 255, .08); border-color: rgba(143, 227, 172, .34); }
.section-dark .eyebrow::before { flex: 0 0 6px; background: var(--green-bright); box-shadow: 0 0 8px var(--green-bright); }
.section-dark .g { color: var(--green-bright); }
.section-dark a { color: #9FE7B6; }
.section-dark a:hover { color: #fff; }
.section-head { max-width: 820px; margin: 0 auto clamp(32px, 4vw, 54px); text-align: center; }
.section-sub { font-size: 17px; }
.section-dark .section-sub { color: #E4F3EA; }

/* ---------- Stats ---------- */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.stat { padding: 28px 22px; text-align: center; }
.stat-num { font-family: var(--font-display); font-size: clamp(32px, 3.8vw, 46px); font-weight: 800; color: #fff; margin: 0 0 8px; line-height: 1; }
.stat-num.is-gold { color: #F0907C; }
.stat-label { font-size: 14.5px; line-height: 1.55; color: #DCEFE4; margin: 0; }
.stats-foot { text-align: center; margin: 26px 0 0; font-size: 15.5px; color: rgba(233, 245, 237, .78); }

/* ---------- Top GMV MCN TikTok ---------- */
.gmv-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.gmv-card { overflow: hidden; border-radius: var(--radius-md); }
.gmv-card img { width: 100%; aspect-ratio: 1/1; object-fit: cover; cursor: zoom-in; transition: transform .35s ease; }
.gmv-card:hover img { transform: scale(1.04); }
.gmv-card figcaption { padding: 12px 14px; font-size: 13px; color: #DCEFE4; text-align: center; }
.gmv-note { text-align: center; font-size: 14px; color: #B9DDC8; margin: 20px 0 0; }

/* ---------- About ---------- */
.about-grid { display: grid; grid-template-columns: 1.08fr .92fr; gap: clamp(28px, 5vw, 56px); align-items: start; }
.why-list { display: grid; gap: 14px; }
.why-list li { display: flex; gap: 16px; padding: 18px 20px; border-radius: var(--radius-md); background: var(--off); border: 1px solid var(--line); }
.why-list h3 { font-size: 16px; margin: 0 0 5px; color: var(--green-dark); }
.why-list p { margin: 0; font-size: 15px; }
.why-ico { flex: 0 0 44px; width: 44px; height: 44px; border-radius: 12px; background: var(--card); color: var(--green-dark); display: grid; place-items: center; }
.why-ico svg { width: 22px; height: 22px; fill: currentColor; }

/* ---------- Service cards ---------- */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.card { position: relative; padding: 28px 26px; transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease; }
.card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); border-color: #C4E4D1; }
/* dang chon: vien xanh + quang sang de biet minh dang o the nao */
.card.is-active, .neo-card.is-active {
  border-color: var(--green);
  box-shadow: 0 0 0 3px rgba(47, 169, 86, .2), var(--shadow-lg);
}
.card-ai.is-active { border-color: var(--brick); box-shadow: 0 0 0 3px rgba(134, 37, 24, .18), var(--shadow-lg); }
.neo-card.is-amethyst.is-active { border-color: #8B5CF6; box-shadow: 0 0 0 3px rgba(139, 92, 246, .22), var(--shadow-lg); }
.card-ico { display: grid; place-items: center; width: 50px; height: 50px; border-radius: 14px; background: var(--card); color: var(--green-dark); margin-bottom: 18px; }
.card-ico svg { width: 26px; height: 26px; fill: currentColor; }
.card h3 { font-size: 18px; margin-bottom: 10px; color: var(--forest); }
.card p { font-size: 15px; }
.card ul { margin-top: 14px; display: grid; gap: 8px; }
.card ul li { position: relative; padding-left: 20px; font-size: 14.5px; }
.card ul li::before { content: ""; position: absolute; left: 0; top: 9px; width: 7px; height: 7px; border-radius: 50%; background: var(--green); }
.card-ai { border-color: #E9C4BB; background: linear-gradient(165deg, #FDF1EE, #FFFFFF 62%); }
.card-ai .card-ico { background: #F7DED8; color: var(--brick); }
.card-ai ul li::before { background: var(--brick-bright); }
.card-badge { position: absolute; top: 16px; right: 18px; font-size: 11px; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; color: #fff; background: var(--brick); padding: 5px 11px; border-radius: 30px; }

/* ---------- Sản phẩm NEO ---------- */
.neo-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.neo-card {
  position: relative; display: flex; flex-direction: column; text-align: left; padding: 0; overflow: hidden;
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg); box-shadow: var(--shadow-xs);
  font: inherit; color: inherit; cursor: pointer;
  transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease;
}
.neo-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); border-color: #C4E4D1; }
.neo-head {
  display: flex; align-items: center; gap: 13px; padding: 20px 20px 18px; min-height: 92px;
  background: linear-gradient(140deg, #EDF8F1, #FAFDFB); border-bottom: 1px solid var(--line);
}
.neo-card.is-live .neo-head { background: linear-gradient(140deg, #D9F2E3, #F1FBF5); }
.neo-card.is-amethyst .neo-head { background: linear-gradient(140deg, #EAE3FE, #F7F4FF); border-bottom-color: #DED5F8; }
.neo-mark {
  flex: 0 0 48px; width: 48px; height: 48px; border-radius: 14px; display: grid; place-items: center;
  background: linear-gradient(140deg, var(--green), var(--green-dark)); color: #fff;
  box-shadow: 0 6px 16px rgba(30, 122, 61, .24);
}
.neo-mark.is-logo { overflow: hidden; padding: 0; background: none; }
.neo-mark.is-logo img { width: 100%; height: 100%; object-fit: cover; border-radius: 14px; }
.neo-mark svg { width: 25px; height: 25px; fill: none; stroke: currentColor; stroke-width: 1.9; stroke-linecap: round; stroke-linejoin: round; }
.neo-card.is-amethyst .neo-mark { background: linear-gradient(140deg, #A78BFA, #7C3AED); box-shadow: 0 6px 16px rgba(124, 58, 237, .24); }
.neo-name { display: block; font-family: var(--font-display); font-weight: 800; text-transform: uppercase; font-size: 16px; color: var(--forest); line-height: 1.15; }
.neo-kicker { display: block; font-size: 10.5px; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; color: var(--grey); margin-top: 4px; }
.neo-body { padding: 18px 20px 20px; display: flex; flex-direction: column; gap: 14px; flex: 1; }
.neo-desc { font-size: 14.5px; color: var(--body); }
.neo-foot { margin-top: auto; display: flex; align-items: center; justify-content: space-between; gap: 10px; flex-wrap: wrap; }
.neo-status {
  font-size: 10.5px; font-weight: 800; letter-spacing: .12em; text-transform: uppercase;
  padding: 6px 12px; border-radius: 30px; background: #FBEDEA; color: var(--brick); border: 1px solid #E9BEB4;
}
.neo-status.is-live { background: var(--card); color: var(--green-dark); border-color: #C4E4D1; }
.neo-link { font-size: 13.5px; font-weight: 700; color: var(--green-dark); }
.neo-card.is-amethyst .neo-link { color: #6D28D9; }

/* ---------- Steps ---------- */
.steps { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; }
.steps li { padding: 26px 22px; }
.step-no { font-family: var(--font-display); font-size: 34px; font-weight: 800; display: block; margin-bottom: 10px; line-height: 1; color: var(--green-bright); }
.steps h3 { font-size: 16.5px; margin-bottom: 8px; }
.steps p { font-size: 14.5px; color: #DCEFE4; margin: 0; }

/* ---------- Results ---------- */
.result-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-bottom: clamp(32px, 4.5vw, 52px); }
.result-hi { padding: 30px 26px; text-align: center; background: var(--card); border: 1px solid #C4E4D1; border-radius: var(--radius-lg); }
.result-num { font-family: var(--font-display); font-size: clamp(23px, 2.6vw, 31px); font-weight: 800; color: var(--green-dark); margin: 0 0 10px; line-height: 1.12; }
.result-hi.is-gold { background: #FBEDEA; border-color: #E9BEB4; }
.result-hi.is-gold .result-num { color: var(--brick); }
.result-desc { font-size: 14.5px; margin: 0; }

/* ---------- Carousel (ảnh & phản hồi) ---------- */
.carousel { position: relative; }
.carousel-track {
  display: flex; gap: 16px; overflow-x: auto; scroll-snap-type: x mandatory;
  scroll-behavior: smooth; padding: 4px 2px 16px; scrollbar-width: none;
}
.carousel-track::-webkit-scrollbar { display: none; }
.carousel-track > * { flex: 0 0 calc((100% - 32px) / 3); scroll-snap-align: start; }
.carousel-photos > figure {
  margin: 0; border-radius: var(--radius-md); overflow: hidden;
  border: 1px solid var(--line); background: #fff; box-shadow: var(--shadow-xs);
}
.carousel-photos img { aspect-ratio: 3/2; object-fit: cover; width: 100%; }
.carousel-photos figcaption { padding: 12px 16px; font-size: 13.5px; color: var(--grey); }
.carousel-btn {
  position: absolute; top: 38%; width: 44px; height: 44px; border-radius: 50%; cursor: pointer;
  background: #fff; border: 1px solid var(--line); color: var(--forest);
  font-size: 22px; line-height: 1; display: grid; place-items: center; box-shadow: var(--shadow);
}
.carousel-btn:hover { background: var(--card); }
.carousel-prev { left: -12px; }
.carousel-next { right: -12px; }
.carousel-dots { display: flex; justify-content: center; gap: 8px; margin-top: 6px; }
.carousel-dots button { width: 8px; height: 8px; padding: 0; border-radius: 50%; border: 0; background: #C9D9CE; cursor: pointer; }
.carousel-dots button[aria-current="true"] { width: 24px; border-radius: 6px; background: var(--green); }
.section-dark .carousel-btn { background: rgba(255, 255, 255, .12); border-color: rgba(255, 255, 255, .26); color: #fff; }
.section-dark .carousel-dots button { background: rgba(255, 255, 255, .3); }
.section-dark .carousel-dots button[aria-current="true"] { background: var(--green-bright); }

/* ---------- Gallery (đều 4 cột) ---------- */
.gallery { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.shot { padding: 0; border: 1px solid var(--line); background: #fff; cursor: zoom-in; border-radius: var(--radius-md); overflow: hidden; line-height: 0; box-shadow: var(--shadow-xs); }
.shot img { width: 100%; aspect-ratio: 4/3; object-fit: cover; transition: transform .4s ease; }
.shot:hover img { transform: scale(1.06); }
.training-more { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 26px; }
.training-more div { padding: 22px 24px; }
.training-more h3 { font-size: 16.5px; color: var(--forest); }
.training-more p { font-size: 15px; margin: 0; }

/* ---------- Reviews ---------- */
.review { display: flex; flex-direction: column; padding: 24px 24px 22px; height: 100%; }
.stars { color: #D98A1F; font-size: 15px; letter-spacing: 3px; margin-bottom: 12px; }
.review blockquote { margin: 0 0 18px; padding: 0; border: 0; background: none; font-size: 15.5px; font-style: normal; color: var(--body); }
.review-by { display: flex; align-items: center; gap: 12px; margin-top: auto; }
.review-avatar { flex: 0 0 42px; width: 42px; height: 42px; border-radius: 50%; display: grid; place-items: center; font-family: var(--font-display); font-weight: 800; font-size: 15px; color: #fff; background: linear-gradient(140deg, var(--green), var(--green-dark)); }
.review-name { font-size: 15px; font-weight: 700; color: var(--ink); margin: 0; }
.review-role { font-size: 13px; color: var(--grey); margin: 0; }

/* ---------- Partners (5 / hàng) ---------- */
.partners { display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px; }
.partners li { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-md); min-height: 104px; display: grid; place-items: center; padding: 18px; box-shadow: var(--shadow-xs); }
.partners img { max-height: 56px; width: auto; object-fit: contain; filter: grayscale(1); opacity: .7; transition: filter .25s ease, opacity .25s ease; }
.partners li:hover img { filter: none; opacity: 1; }

/* ---------- FAQ ---------- */
.faq { display: grid; gap: 12px; }
.faq details { border-radius: var(--radius-md); padding: 2px 22px; background: var(--off); border: 1px solid var(--line); }
.faq details[open] { background: #fff; border-color: #C4E4D1; box-shadow: var(--shadow); }
.faq summary { cursor: pointer; list-style: none; padding: 18px 34px 18px 0; position: relative; font-family: var(--font-display); font-weight: 600; font-size: 17.5px; color: var(--forest); }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 0; top: 50%; transform: translateY(-50%); font-size: 26px; font-weight: 400; color: var(--green); line-height: 1; }
.faq details[open] summary::after { content: "–"; }
.faq p { margin: 0 0 18px; font-size: 15.5px; }

/* ---------- Contact ---------- */
.contact-grid {
  display: grid; grid-template-columns: 1fr .9fr; gap: clamp(24px, 4vw, 48px) clamp(28px, 5vw, 56px);
  align-items: start; grid-template-areas: "intro cta" "company cta" "figures cta";
}
.contact-intro { grid-area: intro; }
.contact-cta { grid-area: cta; }

.contact-list { display: grid; gap: 16px; margin-top: 28px; }
.contact-list li { display: flex; gap: 14px; align-items: flex-start; }
.contact-ico { flex: 0 0 42px; width: 42px; height: 42px; border-radius: 12px; background: rgba(255, 255, 255, .1); border: 1px solid rgba(255, 255, 255, .22); color: #9FE7B6; display: grid; place-items: center; }
.contact-ico svg { width: 20px; height: 20px; }
.contact-label { display: block; font-size: 11.5px; letter-spacing: .16em; text-transform: uppercase; color: #A9D8BC; }
.contact-list a { font-size: 16.5px; font-weight: 600; color: #EAF7EF; }
.contact-list a:hover { color: var(--green-bright); }

.contact-promise { grid-area: company; display: grid; gap: 14px; }
.contact-promise li {
  display: flex; gap: 14px; padding: 16px 18px; border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, .06); border: 1px solid rgba(255, 255, 255, .16);
}
.contact-promise h3 { font-size: 15.5px; margin: 0 0 4px; color: #fff; }
.contact-promise p { font-size: 14px; margin: 0; color: #C9E8D6; }
.promise-ico {
  flex: 0 0 40px; width: 40px; height: 40px; border-radius: 12px; display: grid; place-items: center;
  background: rgba(70, 214, 124, .14); border: 1px solid rgba(146, 232, 178, .3); color: var(--green-bright);
}
.promise-ico svg { width: 20px; height: 20px; }
.contact-figures {
  grid-area: figures; display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 4px;
}
.contact-figures div {
  text-align: center; padding: 14px 8px; border-radius: var(--radius-md);
  background: rgba(255, 255, 255, .05); border: 1px solid rgba(255, 255, 255, .14);
}
.contact-figures strong { display: block; font-family: var(--font-display); font-size: 24px; color: var(--green-bright); line-height: 1; }
.contact-figures span { font-size: 12.5px; color: #C9E8D6; }

/* chan trang: khoi logo tren cung + 3 cot */
.footer-top { display: flex; flex-direction: column; align-items: center; gap: 8px; text-align: center; padding-bottom: 30px; }
.footer-top img { width: 140px; }
.footer-role {
  margin: 6px 0 2px; font-size: 14px; font-weight: 600; color: #DCEFE4; letter-spacing: .01em;
}

.contact-form { padding: 30px 28px; }
.contact-form h3 { margin-bottom: 6px; color: #fff; }
.form-note { font-size: 14.5px; color: #E4F3EA; margin-bottom: 18px; }
.contact-form label { display: block; font-size: 13px; font-weight: 700; letter-spacing: .04em; color: #D3EBDD; margin: 15px 0 6px; text-transform: uppercase; }
.contact-form label span { color: #F0907C; }
.contact-form input, .contact-form select, .contact-form textarea {
  width: 100%; font-family: var(--font-body); font-size: 15.5px; color: #fff;
  background: rgba(255, 255, 255, .09); border: 1px solid rgba(255, 255, 255, .2);
  border-radius: var(--radius-sm); padding: 13px 15px;
}
.contact-form textarea { resize: vertical; }
.contact-form input::placeholder, .contact-form textarea::placeholder { color: rgba(255, 255, 255, .42); }
.contact-form input:focus, .contact-form select:focus, .contact-form textarea:focus { border-color: var(--green-bright); background: rgba(255, 255, 255, .13); }
.contact-form select option { color: var(--ink); }
.contact-form .btn { margin-top: 24px; }
.form-hint { font-size: 14px; margin: 12px 0 0; min-height: 20px; color: var(--green-bright); }
.form-hint.is-error { color: #FFB4A6; }
.form-alt { font-size: 14px; color: rgba(233, 245, 237, .72); margin: 8px 0 0; }

/* ---------- Footer ---------- */
.site-footer { background: var(--forest-2); color: rgba(233, 245, 237, .7); padding: clamp(44px, 6vw, 70px) 0 0; font-size: 15px; }
.footer-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.footer-brand img { width: 138px; margin-bottom: 16px; }
.footer-brand strong { color: #fff; }
.dna-line { font-size: 12.5px; letter-spacing: .18em; text-transform: uppercase; color: #86DDA3; }
.site-footer h3 { font-size: 13px; letter-spacing: .16em; color: #fff; margin-bottom: 14px; }
.site-footer ul { display: grid; gap: 9px; }
.site-footer a { color: rgba(233, 245, 237, .74); }
.site-footer a:hover { color: var(--green-bright); }
.footer-bottom {
  display: flex; justify-content: center; text-align: center; flex-wrap: wrap; gap: 10px;
  margin-top: clamp(30px, 4vw, 44px); padding: 20px 22px; border-top: 1px solid rgba(255, 255, 255, .1);
  font-size: 13.5px; color: rgba(233, 245, 237, .5);
}
.footer-bottom p { margin: 0; }
.footer-bottom .rights { margin-left: 6px; }

/* ---------- Quick contact (có hiệu ứng nhấp nháy) ---------- */
.quick-contact { position: fixed; right: 18px; bottom: 18px; z-index: 95; display: grid; gap: 12px; justify-items: end; }
.qc {
  position: relative; display: inline-flex; align-items: center; justify-content: center;
  width: 56px; height: 56px; border-radius: 50%; border: 0; cursor: pointer;
  color: #fff; box-shadow: var(--shadow-lg); text-decoration: none;
  transition: transform .18s ease, box-shadow .18s ease, opacity .25s ease, visibility .25s ease;
}
.qc:hover { transform: translateY(-3px) scale(1.05); color: #fff; }
.qc svg { width: 25px; height: 25px; position: relative; z-index: 1; }
.qc-top { background: #fff; border: 1px solid var(--line); color: var(--forest); opacity: 0; visibility: hidden; }
.qc-top.is-shown { opacity: 1; visibility: visible; }
.qc-messenger { background: linear-gradient(140deg, #00C6FF, #0068FF 45%, #A033FF); }
.qc-zalo { background: #0068FF; }
.qc-call { background: var(--green); }
.qc-call svg { fill: #fff; }
/* vòng sóng lan toả + rung nhẹ để dễ thấy */
.qc-pulse::before, .qc-pulse::after {
  content: ""; position: absolute; inset: 0; border-radius: 50%;
  border: 2px solid currentColor; opacity: .6; animation: qcRing 2.4s ease-out infinite;
}
.qc-pulse::after { animation-delay: 1.2s; }
.qc-zalo.qc-pulse::before, .qc-zalo.qc-pulse::after { border-color: #4d94ff; }
.qc-messenger.qc-pulse::before, .qc-messenger.qc-pulse::after { border-color: #8f6BFF; }
.qc-call.qc-pulse::before, .qc-call.qc-pulse::after { border-color: var(--green-bright); }
.qc-call.qc-pulse svg { animation: qcShake 2.4s ease-in-out infinite; }
@keyframes qcRing {
  0% { transform: scale(1); opacity: .55; }
  70% { transform: scale(1.75); opacity: 0; }
  100% { transform: scale(1.75); opacity: 0; }
}
@keyframes qcShake {
  0%, 68%, 100% { transform: rotate(0deg); }
  72% { transform: rotate(-14deg); }
  76% { transform: rotate(12deg); }
  80% { transform: rotate(-10deg); }
  84% { transform: rotate(8deg); }
  88% { transform: rotate(-4deg); }
}
@media (prefers-reduced-motion: reduce) {
  .qc-pulse::before, .qc-pulse::after, .qc-call.qc-pulse svg { animation: none; }
  .qc-pulse::before { opacity: .35; }
  .qc-pulse::after { display: none; }
}

/* ---------- Toast ---------- */
.toast {
  position: fixed; left: 50%; bottom: 32px; transform: translate(-50%, 24px); z-index: 200;
  padding: 14px 24px; border-radius: 40px; font-weight: 700; font-size: 15px; color: #fff;
  background: var(--brick); box-shadow: var(--shadow-lg);
  opacity: 0; visibility: hidden; transition: opacity .25s ease, transform .25s ease, visibility .25s;
}
.toast.is-shown { opacity: 1; visibility: visible; transform: translate(-50%, 0); }

/* ---------- Lightbox ---------- */
.lightbox { position: fixed; inset: 0; z-index: 210; display: flex; align-items: center; justify-content: center; gap: 12px; padding: 24px; background: rgba(8, 24, 15, .92); backdrop-filter: blur(6px); }
.lightbox[hidden] { display: none; }
.lb-figure { margin: 0; max-width: min(1100px, 92vw); }
.lb-figure img { max-height: 78vh; width: auto; margin: 0 auto; border-radius: var(--radius-md); box-shadow: var(--shadow-lg); }
.lb-figure figcaption { color: rgba(255, 255, 255, .84); text-align: center; font-size: 14.5px; margin-top: 14px; }
.lb-close, .lb-nav { background: rgba(255, 255, 255, .12); border: 1px solid rgba(255, 255, 255, .24); color: #fff; border-radius: 50%; width: 46px; height: 46px; font-size: 26px; line-height: 1; cursor: pointer; flex: 0 0 auto; }
.lb-close { position: absolute; top: 18px; right: 18px; font-size: 30px; }
.lb-close:hover, .lb-nav:hover { background: rgba(47, 169, 86, .4); }

/* ---------- Reveal ---------- */
[data-reveal] { opacity: 0; transform: translateY(20px); transition: opacity .6s ease, transform .6s ease; }
[data-reveal].is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  [data-reveal] { opacity: 1; transform: none; transition: none; }
  .shot img, .card, .btn, .neo-card { transition: none; }
}

/* =====================================================================
   RESPONSIVE
   ===================================================================== */
@media (max-width: 1080px) {
  .stats { grid-template-columns: repeat(2, 1fr); }
  .cards { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(3, 1fr); }
  .gallery { grid-template-columns: repeat(3, 1fr); }
  .gmv-grid { grid-template-columns: repeat(2, 1fr); }
  .neo-grid { grid-template-columns: repeat(2, 1fr); }
  .partners { grid-template-columns: repeat(4, 1fr); }
  .carousel-track > * { flex: 0 0 calc((100% - 16px) / 2); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .carousel-prev { left: 2px; }
  .carousel-next { right: 2px; }
}

@media (max-width: 900px) {
  .nav {
    position: fixed; inset: var(--header-h) 14px auto; flex-direction: column; align-items: stretch; gap: 0;
    background: rgba(9, 32, 20, .93); backdrop-filter: blur(22px) saturate(170%);
    border: 1px solid rgba(146, 232, 178, .24); border-radius: 26px;
    box-shadow: 0 22px 44px rgba(4, 16, 10, .4);
    padding: 12px 22px 22px; max-height: calc(100vh - var(--header-h) - 20px); overflow-y: auto;
    transform: translateY(-12px); opacity: 0; visibility: hidden;
    transition: opacity .2s ease, transform .2s ease, visibility .2s;
  }
  .nav.is-open { transform: none; opacity: 1; visibility: visible; }
  .nav a { padding: 15px 0; border-bottom: 1px solid rgba(255, 255, 255, .1); }
  .nav a::after { display: none; }
  .nav-cta { margin-top: 16px; justify-content: center; }
  .nav-toggle {
    display: grid; gap: 5px; place-content: center; width: 46px; height: 46px;
    background: rgba(255, 255, 255, .1); border: 1px solid rgba(146, 232, 178, .3); border-radius: 50%; cursor: pointer;
  }
  .nav-toggle span { display: block; width: 22px; height: 2.5px; background: #DCEFE4; border-radius: 2px; transition: transform .2s ease, opacity .2s ease; }
  .nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7.5px) rotate(45deg); }
  .nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
  .nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7.5px) rotate(-45deg); }

  .header-inner { width: auto; margin: 0 12px; padding: 6px 7px 6px 16px; min-height: 54px; }
  .brand img { width: 84px; }
  .hero-grid, .about-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; grid-template-areas: "intro" "cta" "company" "figures"; }
  /* vong logo len tren tieu de cho mobile */
  .hero-media { order: -1; margin-bottom: 6px; }
    .result-grid { grid-template-columns: 1fr; }
  .training-more { grid-template-columns: 1fr; }
}

@media (max-width: 620px) {
  body { font-size: 16px; }
  /* eyebrow gon hon, khong bi be dong ---- */
  .eyebrow { font-size: 11px; letter-spacing: .12em; padding: 6px 13px; }
  /* 2 CTA hero cung mot hang */
  .hero-actions { flex-wrap: nowrap; gap: 10px; }
  .hero-actions .btn { flex: 1 1 0; padding: 13px 10px; font-size: 14.5px; white-space: nowrap; }
  /* anh bang GMV to ro rang */
  .gmv-grid { grid-template-columns: 1fr; }
  /* carousel can giua */
  .carousel-track { padding-left: 6%; padding-right: 6%; }
  .carousel-track > * { flex: 0 0 88%; scroll-snap-align: center; }
  /* an bot 1 logo doi tac cho chan hang */
  .partners li.hide-mobile, .hide-mobile { display: none; }
  .contact-cta .btn { font-size: 14.5px; padding: 14px 14px; }
  /* danh xung chan trang gon tren mobile */
  .footer-role { font-size: 13px; line-height: 1.45; }
  .footer-top { padding-bottom: 24px; }
  /* dong ban quyen xuong hai dong */
  .footer-bottom { flex-direction: column; gap: 2px; }
  .footer-bottom .rights { display: block; margin-left: 0; }
  .stats, .cards, .steps { grid-template-columns: 1fr; }
    .gallery { grid-template-columns: repeat(2, 1fr); }
  .partners { grid-template-columns: repeat(2, 1fr); }
  .neo-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .carousel-track > * { flex: 0 0 88%; }
  .quick-contact { right: 12px; bottom: 12px; gap: 10px; }
  .qc { width: 52px; height: 52px; }
  .lb-nav { width: 40px; height: 40px; }
}

/* =====================================================================
   HERO — HỆ SINH THÁI: quỹ đạo quét sáng + hai nhóm logo tách bạch
   Vòng trong: phần mềm NEO (thẻ bo góc, có tên)
   Vòng ngoài: nền tảng phân phối (huy hiệu tròn nhỏ)
   ===================================================================== */
.hero-web { position: relative; width: 100%; max-width: 580px; margin: 0 auto; aspect-ratio: 1; }

/* quỹ đạo: viền mảnh + vệt sáng quét quanh */
.orbit-track {
  position: absolute; top: 50%; left: 50%; border-radius: 50%;
  transform: translate(-50%, -50%); pointer-events: none;
}
.orbit-track::before {
  content: ""; position: absolute; inset: 0; border-radius: 50%;
  border: 1px solid rgba(47, 169, 86, .16);
}
.orbit-track i {
  position: absolute; inset: 0; border-radius: 50%;
  background: conic-gradient(from 0deg, transparent 0 62%, rgba(47, 169, 86, .55) 78%, rgba(70, 214, 124, .9) 86%, transparent 92%);
  -webkit-mask: radial-gradient(closest-side circle, transparent calc(100% - 2.5px), #000 calc(100% - 2.5px));
  mask: radial-gradient(closest-side circle, transparent calc(100% - 2.5px), #000 calc(100% - 2.5px));
  animation: trackSweep 14s linear infinite;
}
.orbit-track.is-neo { width: 62%; height: 62%; }
.orbit-track.is-platform { width: 94%; height: 94%; }
.orbit-track.is-platform::before { border-color: rgba(134, 37, 24, .12); }
.orbit-track.is-platform i {
  background: conic-gradient(from 180deg, transparent 0 66%, rgba(134, 37, 24, .3) 80%, rgba(181, 64, 46, .6) 88%, transparent 94%);
  animation-duration: 22s; animation-direction: reverse;
}
@keyframes trackSweep { to { transform: rotate(360deg); } }

/* lõi */
.web-core {
  position: absolute; top: 50%; left: 50%; width: 34%; aspect-ratio: 1; transform: translate(-50%, -50%);
  display: grid; place-items: center; border-radius: 50%; padding: 9%;
  background: rgba(255, 255, 255, .92); border: 1px solid rgba(255, 255, 255, .95);
  box-shadow: 0 20px 44px rgba(15, 53, 32, .18), inset 0 1px 0 #fff;
  backdrop-filter: blur(14px) saturate(160%); -webkit-backdrop-filter: blur(14px) saturate(160%);
  z-index: 4;
}
.web-core img { width: 100%; position: relative; z-index: 1; }
.core-halo {
  position: absolute; inset: -18%; border-radius: 50%; pointer-events: none;
  background: radial-gradient(circle, rgba(47, 169, 86, .22), rgba(47, 169, 86, 0) 68%);
  animation: haloPulse 4.2s ease-in-out infinite;
}
@keyframes haloPulse { 0%, 100% { opacity: .7; transform: scale(1); } 50% { opacity: 1; transform: scale(1.09); } }

/* vòng trong — phần mềm NEO */
.neo-node {
  position: absolute; left: var(--x); top: var(--y); transform: translate(-50%, -50%);
  z-index: 3; display: grid; justify-items: center;
  animation: nodeFloat 7s ease-in-out infinite; animation-delay: var(--d);
}
.neo-node-box {
  display: grid; place-items: center; width: 78px; height: 78px; padding: 13px;
  border-radius: 24px; background: rgba(255, 255, 255, .96);
  border: 1px solid rgba(47, 169, 86, .3);
  box-shadow: 0 14px 30px rgba(15, 53, 32, .14), inset 0 1px 0 #fff;
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.neo-node img { width: 100%; height: 100%; object-fit: contain; }
.neo-node-name {
  margin-top: 9px; padding: 4px 12px; white-space: nowrap;
  font-family: var(--font-display); font-size: 11px; font-weight: 700; letter-spacing: .06em;
  text-transform: uppercase; color: var(--forest);
  background: rgba(255, 255, 255, .96); border: 1px solid #CDE8D8; border-radius: 999px;
  box-shadow: 0 4px 12px rgba(15, 53, 32, .08);
}
.neo-node:hover .neo-node-box {
  transform: translateY(-5px) scale(1.05);
  border-color: var(--green); box-shadow: 0 18px 36px rgba(47, 169, 86, .28);
}

/* vòng ngoài — nền tảng */
.plat-node {
  position: absolute; left: var(--x); top: var(--y); transform: translate(-50%, -50%);
  z-index: 2; display: grid; place-items: center; width: 46px; height: 46px; padding: 9px;
  border-radius: 50%; background: rgba(255, 255, 255, .92); border: 1px solid rgba(15, 53, 32, .08);
  box-shadow: 0 6px 16px rgba(15, 53, 32, .1);
  animation: platPulse 5s ease-in-out infinite; animation-delay: var(--d);
}
.plat-node img { width: 100%; height: 100%; object-fit: contain; }
@keyframes nodeFloat { 0%, 100% { translate: 0 0; } 50% { translate: 0 -10px; } }
@keyframes platPulse { 0%, 100% { scale: 1; opacity: .92; } 50% { scale: 1.06; opacity: 1; } }

/* =====================================================================
   NỀN CHUYỂN ĐỘNG — vệt sáng xanh / nâu trôi nhẹ
   ===================================================================== */
.bg-anim { position: absolute; inset: 0; overflow: hidden; pointer-events: none; z-index: 0; }
.bg-anim span {
  position: absolute; display: block; border-radius: 50%; filter: blur(4px);
  background: radial-gradient(circle, rgba(47, 169, 86, .18), rgba(47, 169, 86, 0) 68%);
  animation: blobDrift 26s ease-in-out infinite;
}
.bg-anim span:nth-child(1) { width: 420px; height: 420px; top: -120px; left: -80px; }
.bg-anim span:nth-child(2) {
  width: 340px; height: 340px; bottom: -140px; right: 6%;
  animation-duration: 34s; animation-delay: -6s;
  background: radial-gradient(circle, rgba(134, 37, 24, .14), rgba(134, 37, 24, 0) 68%);
}
.bg-anim span:nth-child(3) { width: 260px; height: 260px; top: 30%; right: -60px; animation-duration: 40s; animation-delay: -14s; }
.section-dark .bg-anim span { background: radial-gradient(circle, rgba(70, 214, 124, .22), rgba(70, 214, 124, 0) 68%); }
.section-dark .bg-anim span:nth-child(2) { background: radial-gradient(circle, rgba(181, 64, 46, .26), rgba(181, 64, 46, 0) 68%); }
@keyframes blobDrift {
  0%, 100% { transform: translate3d(0, 0, 0) scale(1); }
  33% { transform: translate3d(46px, 34px, 0) scale(1.1); }
  66% { transform: translate3d(-32px, 22px, 0) scale(.95); }
}
.section > .wrap, .hero > .wrap { position: relative; z-index: 1; }

/* =====================================================================
   LIQUID GLASS — vệt sáng chạy qua khi hover
   ===================================================================== */
.card, .neo-card, .result-hi, .training-more div, .partners li, .review,
.gmv-card, .shot, .steps li, .why-list li { position: relative; overflow: hidden; }
.card::after, .neo-card::after, .result-hi::after, .training-more div::after, .partners li::after,
.review::after, .gmv-card::after, .shot::after, .steps li::after, .why-list li::after {
  content: ""; position: absolute; top: 0; bottom: 0; left: -70%; width: 45%;
  background: linear-gradient(105deg, transparent, rgba(255, 255, 255, .55), transparent);
  transform: skewX(-18deg); opacity: 0; pointer-events: none;
}
.section-dark .glass::after, .section-dark .gmv-card::after, .section-dark .steps li::after {
  background: linear-gradient(105deg, transparent, rgba(255, 255, 255, .24), transparent);
}
.card:hover::after, .neo-card:hover::after, .result-hi:hover::after, .training-more div:hover::after,
.partners li:hover::after, .review:hover::after, .gmv-card:hover::after,
.shot:hover::after, .steps li:hover::after, .why-list li:hover::after {
  opacity: 1; animation: sheenSweep .9s ease forwards;
}
@keyframes sheenSweep { from { left: -70%; } to { left: 130%; } }

.result-hi, .training-more div, .partners li, .review, .gmv-card, .steps li, .why-list li {
  transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease;
}
.result-hi:hover, .training-more div:hover, .review:hover, .why-list li:hover {
  transform: translateY(-4px); box-shadow: var(--shadow-lg);
}
.partners li:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: #C4E4D1; }
.steps li:hover, .gmv-card:hover { transform: translateY(-4px); border-color: rgba(255, 255, 255, .34); }

/* ---------- CTA Zalo trong khối liên hệ ---------- */
.contact-cta { padding: 30px 28px; }
.contact-cta h3 { color: #fff; margin-bottom: 8px; }
.contact-cta p { color: #E4F3EA; font-size: 15.5px; }
.cta-buttons { display: grid; gap: 12px; margin: 22px 0 16px; }
.btn-zalo { background: #0068FF; color: #fff; box-shadow: 0 10px 26px rgba(0, 104, 255, .32); }
.btn-messenger { background: linear-gradient(135deg, #00C6FF, #0068FF 45%, #A033FF); color: #fff; box-shadow: 0 10px 26px rgba(120, 60, 255, .3); }
.btn-messenger:hover { color: #fff; box-shadow: 0 14px 30px rgba(120, 60, 255, .42); filter: brightness(1.06); }
.btn-zalo:hover { background: #0057d6; color: #fff; box-shadow: 0 14px 30px rgba(0, 104, 255, .4); }
.cta-note { font-size: 13.5px; color: rgba(233, 245, 237, .62); margin: 0; }
.cta-hours { display: flex; align-items: flex-start; gap: 8px; font-size: 14px; font-weight: 600; color: #CFEEDB; margin-top: 16px; }
.cta-hours::before { content: ""; flex: 0 0 8px; width: 8px; height: 8px; margin-top: 7px; border-radius: 50%; background: var(--green-bright); box-shadow: 0 0 10px var(--green-bright); }

@media (prefers-reduced-motion: reduce) {
  .orbit-track i, .neo-node, .plat-node, .core-halo, .bg-anim span { animation: none !important; }
  .card:hover::after, .neo-card:hover::after, .result-hi:hover::after, .training-more div:hover::after,
  .partners li:hover::after, .review:hover::after, .gmv-card:hover::after,
  .shot:hover::after, .steps li:hover::after, .why-list li:hover::after { animation: none; opacity: 0; }
}

@media (max-width: 620px) {
  .hero-web { max-width: 336px; }
  .neo-node-box { width: 50px; height: 50px; padding: 8px; border-radius: 16px; }
  .neo-node-name { margin-top: 5px; padding: 2px 7px; font-size: 8.5px; letter-spacing: .04em; }
  .plat-node { width: 32px; height: 32px; padding: 6px; }
  .orbit-ring.is-inner .orb { --r: 80px; }
  .orb svg { width: 21px; height: 21px; }
}

/* =====================================================================
   NỀN NÂNG CAO — lưới công nghệ mờ + hạt sáng trôi (tiết chế cho nền sáng)
   Dùng ::before / ::after của .bg-anim nên không cần thêm thẻ HTML
   ===================================================================== */
.bg-anim::before,
.bg-anim::after {
  content: ""; position: absolute; inset: -8%; pointer-events: none;
}
/* lưới mảnh, mờ dần ra rìa */
.bg-anim::before {
  background-image:
    linear-gradient(rgba(47, 169, 86, .07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(47, 169, 86, .07) 1px, transparent 1px);
  background-size: 56px 56px;
  -webkit-mask-image: radial-gradient(78% 68% at 50% 42%, #000 22%, transparent 78%);
  mask-image: radial-gradient(78% 68% at 50% 42%, #000 22%, transparent 78%);
}
/* hạt sáng nhỏ trôi chậm */
.bg-anim::after {
  background-image:
    radial-gradient(rgba(47, 169, 86, .5) 1.5px, transparent 1.8px),
    radial-gradient(rgba(134, 37, 24, .32) 1.2px, transparent 1.6px);
  background-size: 132px 132px, 198px 176px;
  background-position: 12px 18px, 74px 96px;
  animation: dotsDrift 48s linear infinite;
  -webkit-mask-image: radial-gradient(82% 70% at 50% 45%, #000 18%, transparent 82%);
  mask-image: radial-gradient(82% 70% at 50% 45%, #000 18%, transparent 82%);
}
.section-dark .bg-anim::before {
  background-image:
    linear-gradient(rgba(255, 255, 255, .06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .06) 1px, transparent 1px);
}
.section-dark .bg-anim::after {
  background-image:
    radial-gradient(rgba(255, 255, 255, .5) 1.5px, transparent 1.8px),
    radial-gradient(rgba(70, 214, 124, .45) 1.2px, transparent 1.6px);
}
@keyframes dotsDrift {
  from { background-position: 12px 18px, 74px 96px; }
  to { background-position: 144px 150px, -124px -80px; }
}

/* hero: thêm một quầng sáng phát ra từ vùng logo bên phải */
.hero .bg-anim::after { animation-duration: 62s; }

@media (prefers-reduced-motion: reduce) {
  .bg-anim::after { animation: none; }
}