/* ==========================================================================
   Discovery Siltron — một trang giới thiệu tĩnh.
   Ngôn ngữ thiết kế kế thừa discoverygroup.vn / discoveryairways.vn:
   nền trắng – ivory, điểm nhấn vàng gold, khối tối navy, tiêu đề Montserrat.
   ========================================================================== */

@font-face {
  font-family: "Montserrat";
  src: url("../fonts/montserrat/montserrat-variable.woff2") format("woff2");
  font-weight: 100 900; font-style: normal; font-display: swap;
}
@font-face { font-family: "Plus Jakarta Sans"; src: url("../fonts/plus-jakarta-sans/plus-jakarta-sans-400.woff2") format("woff2"); font-weight: 400; font-display: swap; }
@font-face { font-family: "Plus Jakarta Sans"; src: url("../fonts/plus-jakarta-sans/plus-jakarta-sans-500.woff2") format("woff2"); font-weight: 500; font-display: swap; }
@font-face { font-family: "Plus Jakarta Sans"; src: url("../fonts/plus-jakarta-sans/plus-jakarta-sans-600.woff2") format("woff2"); font-weight: 600; font-display: swap; }
@font-face { font-family: "Plus Jakarta Sans"; src: url("../fonts/plus-jakarta-sans/plus-jakarta-sans-700.woff2") format("woff2"); font-weight: 700; font-display: swap; }

:root {
  --img-max: 65vh;   /* rule: ảnh nội dung cao tối đa 65% chiều cao màn hình */
  --ink: #1c1d1b;
  --mute: #5b5c57;
  --gold: #9c7535;
  --gold-soft: #b79552;
  --gold-lt: #e0c68d;
  --gold-grad: linear-gradient(100deg, #f0d492 0%, #c39a44 45%, #e9cd8a 70%, #9c7535 100%);
  --ivory: #faf8f3;
  --navy: #0a1420;
  --navy-2: #101e30;
  --line: rgba(157, 123, 63, .32);
  --line-soft: rgba(157, 123, 63, .18);
  --shadow: 0 16px 42px rgba(57, 46, 26, .08);
  --shadow-lg: 0 28px 70px rgba(57, 46, 26, .14);
  --shell: clamp(20px, 5.2vw, 96px);
  --ease: cubic-bezier(.16, 1, .3, 1);
  --hd-h: 84px;
  --h2: clamp(28px, 2.6vw, 40px);
  --f-title: "Montserrat", "Segoe UI", Arial, sans-serif;
  --f-body: "Plus Jakarta Sans", system-ui, -apple-system, "Segoe UI", Arial, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { overflow-x: clip; -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: 68px; background: #fff; }
body { margin: 0; color: var(--ink); background: #fff; font: 400 15px/1.7 var(--f-body); -webkit-font-smoothing: antialiased; overflow-x: clip; }   /* clip (không phải hidden): hidden biến body thành vùng cuộn riêng, làm hỏng position: sticky của #hanh-trinh */
img, svg { display: block; max-width: 100%; }
img { height: auto; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; }
h1, h2, h3, h4 { margin: 0; font-family: var(--f-title); font-weight: 600; }
h2 { font-size: var(--h2); line-height: 1.14; letter-spacing: -.028em; }   /* một cỡ chung cho mọi tiêu đề section */
h3 { font-size: clamp(16px, 1.4vw, 19px); line-height: 1.3; letter-spacing: -.012em; }
p { margin: 0 0 12px; }
p:last-child { margin-bottom: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
em { font-style: normal; }
.shell { padding-left: var(--shell); padding-right: var(--shell); max-width: 1680px; margin-left: auto; margin-right: auto; }
.skip { position: absolute; left: 12px; top: -60px; z-index: 2000; padding: 10px 16px; background: var(--ink); color: #fff; }
.skip:focus { top: 12px; }
:focus-visible { outline: 2px solid var(--gold-soft); outline-offset: 3px; }

.gold-text { background: var(--gold-grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.eyebrow { display: flex; align-items: center; gap: 12px; margin: 0 0 18px; font: 600 11px/1.4 var(--f-title); letter-spacing: .2em; text-transform: uppercase; color: var(--gold); }
.eyebrow::before { content: ""; width: 34px; height: 1px; background: currentColor; opacity: .7; transform: scaleX(var(--ln, 1)); transform-origin: left; }
.lead { font-size: clamp(15px, 1.15vw, 17px); color: var(--mute); max-width: 60ch; }
.lead b { color: var(--ink); font-weight: 600; }

section { position: relative; padding: clamp(72px, 9vw, 140px) 0; }
.sec-ivory { background: var(--ivory); }
.sec-dark { background: var(--navy); color: #e9ecef; overflow: hidden; }
.sec-dark h2, .sec-dark h3 { color: #fff; }
.sec-dark .eyebrow { color: var(--gold-lt); }
.sec-dark .lead { color: rgba(233, 236, 239, .72); }
.sec-bg { position: absolute; inset: 0; z-index: 0; }
.sec-bg img { width: 100%; height: 115%; object-fit: cover; opacity: .32; }
.sec-bg::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, var(--navy) 0%, rgba(10, 20, 32, .55) 40%, rgba(10, 20, 32, .7) 70%, var(--navy) 100%); }
.sec-dark > .shell { position: relative; z-index: 1; }

.sec-head { margin-bottom: clamp(40px, 5vw, 72px); max-width: 880px; }
.sec-head-wide { max-width: none; }   /* tiêu đề dài cần nằm 1 hàng */
.sec-head-split { max-width: none; display: grid; grid-template-columns: 1.1fr 1fr; gap: 24px 64px; align-items: end; }
.sec-head-split .lead { margin-bottom: 6px; }

/* Buttons */
.btn { display: inline-flex; align-items: center; gap: 10px; height: 52px; padding: 0 28px; border-radius: 999px; font: 600 12px/1 var(--f-title); letter-spacing: .12em; text-transform: uppercase; transition: transform .35s var(--ease), box-shadow .35s, background-color .3s, border-color .3s; }
.btn span { transition: transform .35s var(--ease); }
.btn:hover span { transform: translateX(4px); }
.btn-gold { background: var(--gold-grad); color: #1d1606; box-shadow: 0 12px 30px rgba(195, 154, 68, .32); }
.btn-gold:hover { transform: translateY(-2px); box-shadow: 0 18px 40px rgba(195, 154, 68, .42); }
.btn-ghost { border: 1px solid rgba(255, 255, 255, .38); color: #fff; backdrop-filter: blur(6px); background: rgba(255, 255, 255, .04); }
.btn-ghost:hover { border-color: var(--gold-lt); background: rgba(255, 255, 255, .1); }

/* --------------------------------------------------------------------------
   Lock screen (giữ từ bản trước)
   -------------------------------------------------------------------------- */
.lock { display: none; }
html.locked body > :not(.lock) { display: none !important; }
html.locked .lock { position: fixed; inset: 0; z-index: 3000; display: flex; align-items: center; justify-content: center; padding: 24px; background: #fff; text-align: center; }
.lock-box { width: 100%; max-width: 420px; }
.lock-logo { display: block; width: 170px; height: auto; margin: 0 auto 40px; }
.lock-tag { display: inline-block; margin-bottom: 18px; font: 600 11px var(--f-title); letter-spacing: .16em; text-transform: uppercase; color: var(--gold); }
.lock h1 { font-size: 28px; font-weight: 500; line-height: 1.3; color: var(--ink); }
.lock p { margin-top: 14px; font-size: 14px; line-height: 1.7; color: var(--mute); }
.lock form { display: flex; gap: 8px; margin-top: 32px; }
.lock input { flex: 1; min-width: 0; height: 46px; padding: 0 14px; border: 1px solid #e6e8ea; font: 500 14px var(--f-body); color: var(--ink); outline: none; }
.lock input:focus { border-color: var(--gold); }
.lock button { height: 46px; padding: 0 22px; border: 0; background: var(--gold); color: #fff; font: 600 12px var(--f-title); letter-spacing: .1em; text-transform: uppercase; cursor: pointer; }
.lock button:hover { background: #82612a; }
.lock-err { min-height: 20px; margin-top: 10px; font-size: 13px; color: #c0392b; }
.lock.shake form { animation: lock-shake .35s; }
@keyframes lock-shake { 25% { transform: translateX(-6px); } 75% { transform: translateX(6px); } }
@media (max-width: 480px) { .lock h1 { font-size: 22px; } .lock-logo { width: 140px; margin-bottom: 32px; } }

/* --------------------------------------------------------------------------
   Header
   -------------------------------------------------------------------------- */
.hd { position: fixed; z-index: 1000; inset: 0 0 auto 0; height: var(--hd-h); display: flex; align-items: center; gap: clamp(16px, 2.4vw, 44px); padding: 0 var(--shell); border-bottom: 1px solid transparent; transition: height .3s ease, background-color .35s, box-shadow .35s, border-color .35s; }
.hd.is-solid { height: 68px; background: rgba(255, 255, 255, .97); border-bottom-color: var(--line-soft); box-shadow: 0 8px 30px rgba(46, 39, 25, .08); backdrop-filter: blur(12px); }
.hd-logo { position: relative; flex: none; width: clamp(150px, 12vw, 182px); }
.hd-logo img { width: 100%; transition: opacity .3s; }
.hd-logo-dark { position: absolute; inset: 0; opacity: 0; }
.hd.is-solid .hd-logo-dark { opacity: 1; }
.hd.is-solid .hd-logo-light { opacity: 0; }
.hd-nav { flex: 1; display: flex; justify-content: center; gap: clamp(14px, 2.1vw, 38px); }
.hd-nav a { position: relative; padding: 8px 0; font: 600 11.5px/1 var(--f-title); letter-spacing: .1em; text-transform: uppercase; color: rgba(255, 255, 255, .86); white-space: nowrap; transition: color .25s; }
.hd-nav a::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 1px; background: var(--gold-soft); transform: scaleX(0); transform-origin: left; transition: transform .35s var(--ease); }
.hd-nav a:hover, .hd-nav a.is-active { color: var(--gold-lt); }
.hd-nav a:hover::after, .hd-nav a.is-active::after { transform: scaleX(1); }
.hd.is-solid .hd-nav a { color: var(--ink); }
.hd.is-solid .hd-nav a:hover, .hd.is-solid .hd-nav a.is-active { color: var(--gold); }
.hd-nav .hd-nav-cta { display: none; }
.hd-cta { flex: none; display: inline-flex; align-items: center; height: 40px; padding: 0 22px; border: 1px solid rgba(255, 255, 255, .45); border-radius: 999px; font: 600 11px/1 var(--f-title); letter-spacing: .12em; text-transform: uppercase; color: #fff; transition: background .3s, border-color .3s, color .3s; }
.hd-cta:hover { background: var(--gold-grad); border-color: transparent; color: #1d1606; }
.hd.is-solid .hd-cta { border-color: var(--gold-soft); color: var(--gold); }
.hd.is-solid .hd-cta:hover { color: #1d1606; }
.hd-burger { display: none; position: relative; width: 44px; height: 44px; margin-right: -8px; border: 0; background: none; cursor: pointer; }
.hd-burger span { position: absolute; left: 11px; right: 11px; height: 1.6px; background: #fff; transition: transform .3s var(--ease), opacity .2s, background .3s; }
.hd-burger span:nth-child(1) { top: 15px; } .hd-burger span:nth-child(2) { top: 21px; } .hd-burger span:nth-child(3) { top: 27px; }
.hd.is-solid .hd-burger span, .hd.open .hd-burger span { background: var(--ink); }
.hd.open .hd-burger span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.hd.open .hd-burger span:nth-child(2) { opacity: 0; }
.hd.open .hd-burger span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }
.hd-progress { display: none; }
.hd-progress-old { position: absolute; left: 0; bottom: -1px; height: 2px; width: 100%; background: var(--gold-grad); transform: scaleX(var(--sp, 0)); transform-origin: left; opacity: 0; transition: opacity .3s; }
.hd.is-solid .hd-progress { opacity: 1; }

@media (max-width: 1180px) {
  .hd { height: 68px; }
  .hd-burger { display: block; }
  .hd-cta { margin-left: auto; }
  .hd.open { background: #fff; }
  .hd.open .hd-logo-dark { opacity: 1; } .hd.open .hd-logo-light { opacity: 0; }
  .hd.open .hd-cta { border-color: var(--gold-soft); color: var(--gold); }
  .hd-nav { position: fixed; top: 68px; left: 0; right: 0; height: calc(100dvh - 68px); flex-direction: column; justify-content: flex-start; gap: 0; padding: 12px var(--shell) 32px; background: #fff; overflow-y: auto; opacity: 0; visibility: hidden; transform: translateY(-8px); transition: opacity .3s, transform .4s var(--ease), visibility .3s; }
  .hd.open .hd-nav { opacity: 1; visibility: visible; transform: none; }
  .hd-nav a, .hd.is-solid .hd-nav a { padding: 18px 0; font-size: 14px; color: var(--ink); border-bottom: 1px solid var(--line-soft); }
  .hd-nav a::after { display: none; }
  .hd-nav .hd-nav-cta { display: block; margin-top: 24px; padding: 18px; border: 0; border-radius: 999px; background: var(--gold-grad); color: #1d1606; text-align: center; }
}
@media (max-width: 520px) { .hd-cta { display: none; } .hd-burger { margin-left: auto; } }

/* --------------------------------------------------------------------------
   Hero
   -------------------------------------------------------------------------- */
.hero { min-height: 100vh; min-height: 100svh; padding: calc(var(--hd-h) + 40px) 0 0; display: flex; flex-direction: column; justify-content: flex-end; background: var(--navy); color: #fff; overflow: hidden; isolation: isolate; }
.hero-media { position: absolute; inset: 0 0 0 auto; width: min(78%, 1400px); z-index: -3; }
.hero-media img { width: 100%; height: 112%; object-fit: cover; object-position: 60% 40%; }
.hero-veil { position: absolute; inset: 0; z-index: -2; background:
  linear-gradient(90deg, var(--navy) 18%, rgba(10, 20, 32, .82) 42%, rgba(10, 20, 32, .25) 75%, rgba(10, 20, 32, .45) 100%),
  linear-gradient(0deg, var(--navy) 2%, rgba(10, 20, 32, 0) 45%); }
.hero-net { position: absolute; inset: 0; width: 100%; height: 100%; z-index: -1; }
.hero-trace path { fill: none; stroke: #b79552; stroke-opacity: .28; stroke-width: 1.2; stroke-dasharray: 6 10; animation: trace 30s linear infinite; }
@keyframes trace { to { stroke-dashoffset: -480; } }
.hero-copy { width: 100%; padding-bottom: clamp(36px, 5vh, 64px); }
.hero-kicker { margin-bottom: 20px; font: 600 11px/1.4 var(--f-title); letter-spacing: .24em; text-transform: uppercase; color: var(--gold-lt); }
.hero h1 { display: flex; flex-direction: column; gap: .08em; font-size: clamp(32px, 5vw, 76px); line-height: 1.04; letter-spacing: -.03em; font-weight: 600; }
.hero h1 span:first-child { font-size: .62em; font-weight: 500; letter-spacing: .02em; color: rgba(255, 255, 255, .92); }
.hero-lead { max-width: 640px; margin: 26px 0 0; font-size: clamp(14px, 1.1vw, 16px); color: rgba(255, 255, 255, .74); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 34px; }
.hero-stats { display: grid; grid-template-columns: repeat(4, 1fr); width: 100%; margin-bottom: clamp(28px, 5vh, 56px); }
.hero-stats article { padding: 22px 26px; border: 1px solid rgba(255, 255, 255, .1); border-right-width: 0; background: rgba(255, 255, 255, .035); backdrop-filter: blur(10px); }
.hero-stats article:last-child { border-right-width: 1px; }
.hero-stats b, .mk-big b, .mk-pair b, .benefit-num b, .kpi-grid b { font: 600 clamp(28px, 2.6vw, 40px)/1 var(--f-title); letter-spacing: -.03em; }
.hero-stats s, .mk-big s, .mk-pair s, .benefit-num s, .kpi-grid s, .opp-nums s { display: block; margin-top: 8px; font: 600 10px/1.2 var(--f-title); letter-spacing: .16em; text-transform: uppercase; text-decoration: none; color: var(--gold-lt); }
.hero-stats p { margin: 6px 0 0; font-size: 13px; color: rgba(255, 255, 255, .62); }
.scroll-cue { position: absolute; right: var(--shell); top: 50%; display: flex; flex-direction: column; align-items: center; gap: 12px; font: 600 10px var(--f-title); letter-spacing: .24em; text-transform: uppercase; color: rgba(255, 255, 255, .55); writing-mode: vertical-rl; }
.scroll-cue i { width: 1px; height: 64px; background: linear-gradient(var(--gold-lt), transparent); animation: cue 2.2s var(--ease) infinite; transform-origin: top; }
@keyframes cue { 0% { transform: scaleY(0); } 60% { transform: scaleY(1); } 100% { transform: scaleY(1); opacity: 0; } }

/* --------------------------------------------------------------------------
   About
   -------------------------------------------------------------------------- */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(40px, 6vw, 110px); align-items: center; }
.about h2 em { color: var(--gold); }
.about .lead { margin-top: 24px; }
.facts { margin: 36px 0 0; border-top: 1px solid var(--line); }
.facts div { display: grid; grid-template-columns: 150px 1fr; gap: 16px; padding: 15px 0; border-bottom: 1px solid var(--line-soft); }
.facts dt { font: 600 10.5px/1.8 var(--f-title); letter-spacing: .14em; text-transform: uppercase; color: var(--gold); }
.facts dd { margin: 0; font-size: 14px; }
.about-visual { margin: 0; position: relative; }
.frame { position: relative; overflow: hidden; aspect-ratio: 4 / 4.2; max-height: var(--img-max); border-radius: 2px; box-shadow: var(--shadow-lg); }
.frame img { width: 100%; height: 110%; object-fit: cover; object-position: 70% 30%; }
.frame::after { content: ""; position: absolute; inset: 14px; border: 1px solid rgba(224, 198, 141, .55); pointer-events: none; }
.about-visual figcaption { position: relative; z-index: 1; width: min(88%, 460px); margin: -90px 0 0 auto; padding: 28px 30px; background: #fff; box-shadow: var(--shadow); border-left: 2px solid var(--gold-soft); }
.about-visual blockquote { margin: 0 0 16px; font: 500 clamp(16px, 1.3vw, 19px)/1.5 var(--f-title); letter-spacing: -.01em; }
.about-visual figcaption span { display: block; font-size: 13px; color: var(--mute); }
.about-visual figcaption b { display: block; color: var(--ink); font-weight: 600; }

/* --------------------------------------------------------------------------
   Criteria
   -------------------------------------------------------------------------- */

/* --------------------------------------------------------------------------
   Market
   -------------------------------------------------------------------------- */
/* Chuỗi giá trị: 4 mũi tên viền vàng (lớp vàng ngoài + lớp navy trong lùi 1,5px → viền chạy cả cạnh chéo) */
.chain { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); margin: 0 0 clamp(40px, 5vw, 64px); padding: 0; list-style: none; }
.chain li { --cp: polygon(0 0, calc(100% - 22px) 0, 100% 50%, calc(100% - 22px) 100%, 0 100%, 22px 50%); position: relative; isolation: isolate; min-height: 158px; padding: 24px 44px 24px 34px; transition: transform .6s var(--ease), filter .5s; }
.chain li:first-child { --cp: polygon(0 0, calc(100% - 22px) 0, 100% 50%, calc(100% - 22px) 100%, 0 100%); padding-left: 26px; }
.chain li + li { margin-left: -16px; padding-left: 44px; }
.ch-shape { position: absolute; inset: 0; z-index: -1; clip-path: var(--cp); background: linear-gradient(115deg, #f0d492 0%, #8a6526 32%, #e9cd8a 58%, #9c7535 82%, #e0c68d 100%); }
.ch-shape::before, .ch-shape::after { content: ""; position: absolute; inset: 1.5px; clip-path: var(--cp); }
.ch-shape::before { background:
    radial-gradient(120% 90% at 0% 0%, rgba(224, 198, 141, .14), transparent 60%),
    linear-gradient(rgba(224, 198, 141, .06) 1px, transparent 1px) 0 0 / 14px 14px,
    linear-gradient(90deg, rgba(224, 198, 141, .06) 1px, transparent 1px) 0 0 / 14px 14px,
    linear-gradient(145deg, #1a2a40 0%, #0d1828 55%, #070e18 100%); transition: filter .5s; }
/* luồng sáng chạy lần lượt qua 4 mắt xích */
.ch-shape::after { background: linear-gradient(100deg, transparent 0%, rgba(240, 212, 146, 0) 30%, rgba(240, 212, 146, .28) 50%, rgba(240, 212, 146, 0) 70%, transparent 100%) no-repeat; background-size: 55% 100%; background-position: -120% 0; animation: chFlow 5.6s cubic-bezier(.45, 0, .25, 1) infinite; animation-delay: calc(var(--i, 0) * .5s); }
@keyframes chFlow { 0% { background-position: -120% 0; } 32%, 100% { background-position: 260% 0; } }
.ch-ico { position: absolute; top: 24px; right: 50px; width: 28px; height: 28px; fill: none; stroke: var(--gold-lt); stroke-width: 1.4; stroke-linecap: round; stroke-linejoin: round; opacity: .8; transition: opacity .4s, transform .6s var(--ease); }
.chain i { display: block; font: 300 34px/1 var(--f-title); font-style: normal; letter-spacing: -.02em; background: var(--gold-grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.chain b { display: block; margin: 12px 0 12px; font: 600 17px/1.3 var(--f-title); color: #fff; }
.ch-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.ch-tags em { padding: 3px 9px; border: 1px solid rgba(224, 198, 141, .32); border-radius: 999px; font: 500 11.5px/1.4 var(--f-body); font-style: normal; color: rgba(255, 255, 255, .78); background: rgba(224, 198, 141, .05); transition: border-color .4s, color .4s; }
.chain li:hover { transform: translateY(-5px); filter: drop-shadow(0 14px 24px rgba(0, 0, 0, .4)) drop-shadow(0 0 16px rgba(224, 198, 141, .28)); z-index: 1; }
.chain li:hover .ch-shape::before { filter: brightness(1.25); }
.chain li:hover .ch-ico { opacity: 1; transform: translateY(-2px) scale(1.08); }
.chain li:hover .ch-tags em { border-color: rgba(224, 198, 141, .6); color: #fff; }
.market-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; background: rgba(224, 198, 141, .2); border: 1px solid rgba(224, 198, 141, .2); }
.mk-col { padding: clamp(28px, 3.4vw, 52px); background: var(--navy); }
.mk-col h3 { margin-bottom: 28px; font-weight: 500; color: rgba(255, 255, 255, .86) !important; }
.mk-col h3 em { color: var(--gold-lt); }
.mk-big b { font-size: clamp(56px, 6vw, 92px); background: var(--gold-grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.mk-big { margin-bottom: 14px; }
/* số + đơn vị cùng một hàng */
.mk-big, .mk-pair > div { display: flex; flex-wrap: wrap; align-items: baseline; column-gap: 12px; }
.mk-pair > div { column-gap: 6px; }
.mk-big s, .mk-pair s { margin-top: 0; }
.mk-big s { font-size: 12px; }
.mk-pair s { font-size: 18px; letter-spacing: 0; }
.mk-pair > div p { flex-basis: 100%; }
.mk-col > p { max-width: 44ch; color: rgba(233, 236, 239, .66); font-size: 14px; }
.mk-pair { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-top: 30px; padding-top: 26px; border-top: 1px solid rgba(224, 198, 141, .2); }
.mk-pair b { color: #fff; }
.mk-pair p { margin-top: 4px; font-size: 13px; color: rgba(233, 236, 239, .6); }

/* --------------------------------------------------------------------------
   Value chain stepper
   -------------------------------------------------------------------------- */
.vc-head { display: grid; grid-template-columns: 1.2fr 1fr; gap: 24px 64px; align-items: end; margin-bottom: clamp(36px, 4vw, 56px); }
.vc-lead { color: var(--mute); max-width: 48ch; }
.vc-view { display: grid; grid-template-columns: 1.55fr 1fr; gap: clamp(20px, 3vw, 48px); align-items: stretch; }
.vc-stage { position: relative; width: 100%; min-height: min(100%, var(--img-max)); max-height: var(--img-max); align-self: center; aspect-ratio: 16 / 10; overflow: hidden;   /* width cố định: tránh aspect-ratio + stretch suy ra chiều rộng từ chiều cao rồi tràn sang cột bên */ background: var(--navy); box-shadow: var(--shadow-lg); }
.vc-slide { position: absolute; inset: 0; margin: 0; opacity: 0; transition: opacity .9s ease; }
.vc-slide.is-on { opacity: 1; }
.vc-slide img { width: 100%; height: 100%; object-fit: cover; transform: scale(1.08); transition: transform 6s linear; }
.vc-slide.is-on img { transform: scale(1); }
.vc-slide::after { content: ""; position: absolute; inset: 0; background: linear-gradient(0deg, rgba(10, 20, 32, .86) 0%, rgba(10, 20, 32, 0) 55%); }
.vc-slide figcaption { position: absolute; left: clamp(18px, 2.4vw, 34px); right: 18px; bottom: clamp(16px, 2.2vw, 30px); z-index: 1; display: grid; grid-template-columns: auto 1fr; gap: 2px 14px; color: #fff; }
.vc-slide figcaption b { grid-row: span 2; font: 300 clamp(34px, 3.6vw, 52px)/1 var(--f-title); color: var(--gold-lt); }
.vc-slide figcaption span { font: 600 clamp(16px, 1.6vw, 22px)/1.25 var(--f-title); align-self: end; }
.vc-slide figcaption em { font-size: 13px; color: rgba(255, 255, 255, .72); }
.vc-ladder { padding: clamp(22px, 2.6vw, 36px); background: #fff; border: 1px solid var(--line-soft); display: flex; flex-direction: column; }
.vc-ladder-t { font: 600 11px var(--f-title); letter-spacing: .18em; text-transform: uppercase; color: var(--gold); margin-bottom: 18px; }
.vc-ladder ol { display: flex; flex-direction: column; gap: 16px; flex: 1; justify-content: center; }
.vc-ladder li { display: grid; grid-template-columns: 1fr auto; gap: 6px 12px; font-size: 13.5px; transition: opacity .4s; opacity: .5; }
.vc-ladder li.is-on { opacity: 1; }
.vc-ladder li span { color: var(--mute); }
.vc-ladder li b { font: 600 13.5px var(--f-title); }
.vc-ladder li::after { content: ""; grid-column: 1 / -1; height: 8px; width: var(--w); border-radius: 0 4px 4px 0; background: linear-gradient(90deg, #e9dcbc, var(--gold-soft)); transform-origin: left; transform: scaleX(0); transition: transform 1.1s var(--ease); }
.vc-ladder.is-in li::after { transform: scaleX(1); }
.vc-ladder li.is-on::after { background: var(--gold-grad); }
.vc-note { margin: 18px 0 0; font-size: 11.5px; color: var(--mute); }
.vc-line { display: grid; grid-template-columns: repeat(7, 1fr); margin-top: 34px; position: relative; }
.vc-line::before { content: ""; position: absolute; top: 18px; left: calc(100% / 14); right: calc(100% / 14); height: 1px; background: var(--line); }
.vc-line::after { content: ""; position: absolute; top: 18px; left: calc(100% / 14); height: 1px; width: calc((100% - 100% / 7) * var(--vc, 0)); background: var(--gold); transition: width .8s var(--ease); }
.vc-line button { position: relative; z-index: 1; width: 100%; display: flex; flex-direction: column; align-items: center; gap: 10px; padding: 0 4px; border: 0; background: none; cursor: pointer; }
.vc-line span { display: grid; place-items: center; width: 36px; height: 36px; border: 1px solid var(--gold-soft); border-radius: 50%; background: var(--ivory); font: 600 11px var(--f-title); color: var(--gold); transition: background .3s, color .3s, transform .3s var(--ease); }
.vc-line p { margin: 0; font: 500 12.5px/1.35 var(--f-body); color: var(--mute); text-align: center; transition: color .3s; }
.vc-line li.is-on span { background: var(--navy); border-color: var(--navy); color: #fff; transform: scale(1.12); }
.vc-line li.is-on p { color: var(--ink); font-weight: 600; }
.vc-line li.is-done span { background: var(--gold-soft); color: #fff; border-color: var(--gold-soft); }
.vc-out { margin-top: clamp(56px, 6vw, 88px); }
.vc-out-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.vc-out article { padding: 28px; background: #fff; border: 1px solid var(--line-soft); }
.vc-out b { display: block; margin-bottom: 14px; font: 300 52px/1 var(--f-title); letter-spacing: -.04em; color: var(--gold); }
.vc-out b i { font-style: normal; font-size: .45em; margin-left: 2px; }
.vc-out h3 { margin-bottom: 6px; }
.vc-out p { font-size: 14px; color: var(--mute); }

/* --------------------------------------------------------------------------
   Products
   -------------------------------------------------------------------------- */
.prod-grid { display: grid; grid-template-columns: repeat(12, 1fr); gap: 22px; }
.prod { grid-column: span 3; display: flex; flex-direction: column; background: #fff; border: 1px solid var(--line-soft); transition: transform .5s var(--ease), box-shadow .5s; }
.prod.is-lead { grid-column: span 6; }
.prod:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.prod figure { margin: 0; aspect-ratio: 16 / 10; overflow: hidden; background: #eef0f2; }
.prod.is-lead figure { aspect-ratio: 16 / 8; }
.prod figure.is-dark { background: #000; }
.prod figure.is-dark img { object-fit: contain; padding: 4% 10%; }
.prod img { width: 100%; height: 100%; object-fit: cover; transition: transform 1.2s var(--ease); }
.prod:hover img { transform: scale(1.05); }
.prod-body { position: relative; padding: 26px 28px 30px; }
.prod-body span { position: absolute; right: 24px; top: 22px; font: 600 11px var(--f-title); letter-spacing: .14em; color: var(--gold-soft); }
.prod-body h3 { margin-bottom: 10px; padding-right: 40px; }
.prod-body p { font-size: 14px; color: var(--mute); }

/* --------------------------------------------------------------------------
   Band + marquee
   -------------------------------------------------------------------------- */
.band { padding: 0; min-height: var(--img-max); display: flex; flex-direction: column; justify-content: center; background: var(--navy); color: #fff; overflow: hidden; }
.band-media { position: absolute; inset: 0; }
.band-media img { width: 100%; height: 120%; object-fit: cover; opacity: .75; }
.band::before { content: ""; position: absolute; inset: 0; z-index: 1; background: linear-gradient(90deg, rgba(10, 20, 32, .9) 0%, rgba(10, 20, 32, .35) 70%); }
.band-copy { position: relative; z-index: 2; width: 100%; padding-top: 110px; padding-bottom: 120px; }
.band h2 { max-width: 19em; font-size: var(--h2); color: #fff; }
.band .eyebrow { color: var(--gold-lt); }
.marquee { position: absolute; z-index: 2; left: 0; right: 0; bottom: 0; padding: 26px 0 20px; overflow: hidden; pointer-events: none; background: linear-gradient(180deg, rgba(10, 20, 32, 0), rgba(10, 20, 32, .62) 55%, rgba(10, 20, 32, .78)); }
.marquee-row { display: flex; width: max-content; animation: marquee 38s linear infinite; }
.marquee span { display: flex; align-items: center; gap: 42px; padding-right: 42px; font: 300 clamp(26px, 3.2vw, 46px)/1.2 var(--f-title); letter-spacing: -.01em; white-space: nowrap; color: rgba(255, 255, 255, .9); font-weight: 400; text-shadow: 0 2px 18px rgba(0, 0, 0, .55); }   /* rõ trên nền ảnh rực */
.marquee i { width: 10px; height: 10px; transform: rotate(45deg); border: 1.5px solid var(--gold-lt); background: rgba(224, 198, 141, .25); }
@keyframes marquee { to { transform: translateX(-50%); } }

/* --------------------------------------------------------------------------
   Technology
   -------------------------------------------------------------------------- */
.problem { display: grid; grid-template-columns: 1fr 1fr 1.1fr; gap: 20px; }
.problem article, .problem aside { padding: 30px; border: 1px solid var(--line-soft); }
.problem h3 { margin-bottom: 18px; font-weight: 500; }
.problem h3 em { color: var(--gold); font-weight: 600; }
.problem ul li { position: relative; padding: 10px 0 10px 28px; border-top: 1px solid var(--line-soft); font-size: 14px; }
.problem ul li::before { content: ""; position: absolute; left: 4px; top: 19px; width: 12px; height: 1.5px; background: #b5462e; transform: rotate(45deg); box-shadow: 0 0 0 0 transparent; }
.problem ul li::after { content: ""; position: absolute; left: 4px; top: 19px; width: 12px; height: 1.5px; background: #b5462e; transform: rotate(-45deg); }
.problem aside { background: var(--navy); color: #fff; border-color: var(--navy); }
.problem aside > p { font-weight: 600; font-family: var(--f-title); }
.problem aside ol { counter-reset: n; }
.problem aside li { counter-increment: n; position: relative; padding: 10px 0 10px 34px; border-top: 1px solid rgba(255, 255, 255, .12); font-size: 14px; color: rgba(255, 255, 255, .82); }
.problem aside li::before { content: "0" counter(n); position: absolute; left: 0; top: 11px; font: 600 11px var(--f-title); color: var(--gold-lt); }
.solution { margin-top: clamp(64px, 7vw, 110px); }
.solution-head { margin-bottom: 44px; }
.sol-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; border-top: 1px solid var(--line); }
.sol-grid article { padding: 34px 26px 6px 0; }
.sol-grid article + article { padding-left: 26px; border-left: 1px solid var(--line-soft); }
.ring { display: grid; place-items: center; width: 74px; height: 74px; margin-bottom: 26px; border-radius: 50%; border: 1px solid var(--gold-soft); font: 300 26px var(--f-title); color: var(--gold); position: relative; }
.ring::after { content: ""; position: absolute; inset: -7px; border-radius: 50%; border: 1px dashed var(--line); animation: spin 26s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.sol-grid h3 { margin-bottom: 10px; }
.sol-grid p { font-size: 14px; color: var(--mute); }
.sol-grid b { color: var(--gold); }
.compare { margin-top: clamp(56px, 6vw, 96px); padding-top: clamp(36px, 4vw, 56px); border-top: 1px solid var(--line-soft); }
.compare > *, .model-grid > *, .contact-grid > *, .edge-grid > *, .vc-view > * { min-width: 0; }
/* Đầu khối: tiêu đề + chú giải hai màu */
.cv-head { display: flex; align-items: end; justify-content: space-between; gap: 24px; flex-wrap: wrap; margin-bottom: 28px; }
.cv-head h3 { margin: 0; font: 600 clamp(22px, 2.2vw, 30px)/1.25 var(--f-title); letter-spacing: -.02em; }
.cv-head h3 span { color: var(--mute); font-weight: 400; }
.cv-legend { display: flex; gap: 20px; margin: 0; font-size: 12.5px; color: var(--mute); }
.cv-legend span { display: inline-flex; align-items: center; gap: 8px; }
.cv-legend i { width: 18px; height: 6px; border-radius: 3px; background: #c9c6bd; }
.cv-legend .is-new i { background: var(--gold-soft); }
/* 4 chỉ số chính: số mới lớn, hai thanh mảnh so sánh, giá trị cũ ở dưới */
.cv-kpis { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border: 1px solid var(--line-soft); background: #fff; }
.cv-kpis article { position: relative; padding: 22px 22px 20px; }
.cv-kpis article + article { border-left: 1px solid var(--line-soft); }
.cv-kpis p { margin: 0 0 10px; font: 600 10.5px/1.3 var(--f-title); letter-spacing: .14em; text-transform: uppercase; color: var(--mute); }
.cv-kpis b { display: block; font: 600 clamp(26px, 2.3vw, 34px)/1 var(--f-title); letter-spacing: -.03em; color: var(--ink); }
.cv-kpis b small { font-size: .5em; font-weight: 500; letter-spacing: 0; color: var(--gold); margin-left: 2px; }
.cv-kpis s { display: block; margin-top: 10px; font-size: 12px; color: var(--mute); text-decoration: none; }
.cv-kpis em { position: absolute; top: 20px; right: 18px; padding: 3px 8px; border-radius: 999px; background: rgba(224, 198, 141, .22); color: var(--gold); font: 600 10.5px/1.4 var(--f-title); font-style: normal; letter-spacing: .04em; }
.cv-bars { display: grid; gap: 3px; margin-top: 16px; }
.cv-bars i { height: 6px; min-width: 6px; border-radius: 0 3px 3px 0; transform-origin: left; transform: scaleX(0); transition: transform 1.1s var(--ease); }
.cv-bars i:first-child { width: calc(var(--a) * 100%); background: #c9c6bd; }
.cv-bars i:last-child { width: calc(var(--b) * 100%); background: var(--gold-soft); transition-delay: .12s; }
.cv-kpis.is-in .cv-bars i, .cv-kpis.mo-done .cv-bars i, html:not(.ds-gsap) .cv-kpis .cv-bars i { transform: none; }
/* Ảnh + danh sách hạng mục còn lại (2 cột, mỗi dòng: hạng mục · cũ → mới) */
.cv-body { display: grid; grid-template-columns: minmax(0, .32fr) minmax(0, 1fr); gap: clamp(20px, 2.6vw, 40px); margin-top: 22px; align-items: stretch; }
.compare-visual { display: grid; }
.compare-visual figure { margin: 0; position: relative; overflow: hidden; min-height: 220px; }
.compare-visual img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.compare-visual figcaption { position: absolute; left: 0; right: 0; bottom: 0; padding: 10px 14px; background: linear-gradient(transparent, rgba(10, 20, 32, .85)); color: #fff; font-size: 12px; }
.cv-list { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); column-gap: clamp(20px, 2.6vw, 40px); align-content: start; }
.cv-list li { display: grid; grid-template-columns: minmax(0, 1fr) auto auto; align-items: baseline; gap: 10px; padding: 11px 0; border-bottom: 1px solid var(--line-soft); font-size: 13.5px; }
.cv-list span { font-weight: 600; }
.cv-list s { color: var(--mute); text-decoration: none; font-size: 12.5px; }
.cv-list s::after { content: "→"; margin-left: 10px; color: var(--gold-soft); }
.cv-list b { color: var(--gold); font-weight: 600; }
/* Bảng đầy đủ: gập lại */
.cv-more { margin-top: 18px; }
.cv-more summary { display: inline-flex; align-items: center; gap: 10px; cursor: pointer; list-style: none; font: 600 11px/1 var(--f-title); letter-spacing: .14em; text-transform: uppercase; color: var(--gold); padding: 8px 0; }
.cv-more summary::-webkit-details-marker { display: none; }
.cv-more summary::after { content: ""; width: 7px; height: 7px; border-right: 1.5px solid currentColor; border-bottom: 1.5px solid currentColor; transform: translateY(-2px) rotate(45deg); transition: transform .3s var(--ease); }
.cv-more[open] summary::after { transform: translateY(2px) rotate(-135deg); }
.cv-more .table-wrap { margin-top: 12px; }
.table-wrap { overflow-x: auto; border: 1px solid var(--line-soft); }
table { width: 100%; min-width: 560px; border-collapse: collapse; font-size: 13.5px; }
thead th { position: sticky; top: 0; padding: 14px 16px; background: var(--navy); color: #fff; font: 600 11px/1.4 var(--f-title); letter-spacing: .08em; text-transform: uppercase; text-align: left; }
thead th:nth-child(3) { background: #1d2b3d; color: var(--gold-lt); }
tbody th { font-weight: 600; text-align: left; }
tbody th, tbody td { padding: 11px 16px; border-bottom: 1px solid var(--line-soft); }
tbody td:nth-child(2) { color: var(--mute); }
tbody td:nth-child(3) { background: rgba(224, 198, 141, .12); font-weight: 600; }
tbody td:last-child { color: var(--gold); font-size: 12.5px; }
tbody tr:hover th, tbody tr:hover td { background: rgba(224, 198, 141, .2); }
tr.is-key th, tr.is-key td { font-weight: 700; border-bottom: 0; }
tr.is-key td:nth-child(3) { color: var(--gold); }

/* --------------------------------------------------------------------------
   Applications
   -------------------------------------------------------------------------- */
.app-grid { display: grid; grid-template-columns: repeat(4, 1fr); grid-auto-rows: clamp(180px, 17vw, 260px); gap: 16px; }
.app-grid figure { position: relative; margin: 0; overflow: hidden; background: #e8e6df; }
.app-grid .is-wide { grid-column: span 2; grid-row: span 2; }
.app-grid figure.is-light { background: #fff; }
.app-grid figure.is-light img { object-fit: contain; padding: 8% 8% 26%; }
.app-grid img { width: 100%; height: 100%; object-fit: cover; transition: transform 1.2s var(--ease); }
.app-grid figure:hover img { transform: scale(1.06); }
.app-grid figcaption { position: absolute; left: 0; right: 0; bottom: 0; padding: 40px 20px 18px; background: linear-gradient(0deg, rgba(10, 20, 32, .85), transparent); color: #fff; }
.app-grid figure.is-light figcaption { background: none; color: var(--ink); }
.app-grid figure.is-light figcaption span { color: var(--mute); }
.app-grid figcaption b { display: block; font: 600 15px/1.3 var(--f-title); }
.app-grid figcaption span { font-size: 12.5px; color: rgba(255, 255, 255, .75); }
.charge { margin-top: 56px; padding: 30px clamp(22px, 3vw, 40px); background: #fff; border: 1px solid var(--line-soft); }
.charge ol { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.charge li { position: relative; display: grid; grid-template-columns: auto 1fr; gap: 0 16px; align-items: center; }
.charge li + li::before { content: "→"; position: absolute; left: -18px; color: var(--gold-soft); }
.charge i { grid-row: span 2; display: grid; place-items: center; width: 44px; height: 44px; border-radius: 50%; background: var(--navy); color: var(--gold-lt); font: 600 15px var(--f-title); font-style: normal; }
.charge b { font: 600 15px/1.3 var(--f-title); }
.charge span { font-size: 13px; color: var(--mute); }
.opp { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 20px; }
.opp article { padding: 30px; background: #fff; border: 1px solid var(--line-soft); }
.opp-t { font: 600 11px var(--f-title); letter-spacing: .16em; text-transform: uppercase; color: var(--gold); margin-bottom: 20px; }
.opp-nums { display: flex; align-items: flex-end; gap: 18px; margin-bottom: 18px; }
.opp-nums b { font: 600 clamp(26px, 2.3vw, 36px)/1 var(--f-title); letter-spacing: -.03em; }
.opp-nums b.gold { color: var(--gold); }
.opp-nums s { color: var(--mute); }
.opp-nums i { font-style: normal; color: var(--gold-soft); font-size: 22px; padding-bottom: 18px; }
.opp article > p:last-child { font-size: 13.5px; color: var(--mute); }
.opp article > p b { color: var(--ink); }
.opp-brands { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 16px; }
.opp-brands li { padding: 6px 12px; border: 1px solid var(--line); border-radius: 999px; font: 600 12px var(--f-title); }

/* --------------------------------------------------------------------------
   Competitive edge
   -------------------------------------------------------------------------- */
.edge-grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(40px, 6vw, 110px); align-items: start; }
.edge blockquote { margin: 28px 0 0; padding-left: 22px; border-left: 2px solid var(--gold-soft); font: 400 clamp(16px, 1.3vw, 19px)/1.6 var(--f-title); color: rgba(255, 255, 255, .86); }
.edge blockquote b { color: var(--gold-lt); font-weight: 600; }
.forces { margin-top: 44px; }
.forces-t { font: 600 11px var(--f-title); letter-spacing: .16em; text-transform: uppercase; color: rgba(255, 255, 255, .7); }
.forces-t small { font-size: 10px; letter-spacing: .08em; text-transform: none; color: rgba(255, 255, 255, .45); }
.forces ul, .hbars { display: grid; gap: 12px; }
.forces li, .hbars li { display: grid; grid-template-columns: 200px 1fr 44px; align-items: center; gap: 14px; font-size: 13px; }
.forces li span { color: rgba(255, 255, 255, .72); }
.forces li i, .hbars li i { height: 8px; border-radius: 0 4px 4px 0; background: var(--gold-soft); width: calc(var(--v) * 100%); transform: scaleX(0); transform-origin: left; transition: transform 1.1s var(--ease); }
.forces.is-in li i, .hbars.is-in li i { transform: scaleX(1); }
.forces li b { font: 600 13px var(--f-title); color: #fff; text-align: right; }
.edge-list { border-top: 1px solid rgba(224, 198, 141, .25); }
.edge-list li { display: grid; grid-template-columns: 64px 1fr; gap: 18px; padding: 28px 0; border-bottom: 1px solid rgba(224, 198, 141, .2); }
.edge-list span { font: 300 34px/1 var(--f-title); color: var(--gold-lt); }
.edge-list p { margin: 0; font-size: clamp(15px, 1.2vw, 18px); color: rgba(255, 255, 255, .72); }
.edge-list b { color: #fff; font-weight: 600; }
.edge-list .edge-pos span { font-size: 20px; padding-top: 4px; }
.edge-list .edge-pos p { font-size: 14px; }

/* --------------------------------------------------------------------------
   Business model
   -------------------------------------------------------------------------- */
.model-grid { display: grid; grid-template-columns: 1.15fr 1fr; gap: clamp(32px, 5vw, 88px); align-items: start; }
.model-list li { display: grid; grid-template-columns: 70px 1fr; gap: 16px; padding: 26px 0; border-top: 1px solid var(--line-soft); }
.model-list li:last-child { border-bottom: 1px solid var(--line-soft); }
.model-list span { font: 300 36px/1 var(--f-title); color: var(--gold); }
.model-list h3 { margin-bottom: 6px; }
.model-list p { font-size: 14px; color: var(--mute); }
.model-chart { padding: clamp(24px, 3vw, 40px); background: var(--ivory); border: 1px solid var(--line-soft); }
.model-chart h3 { margin-bottom: 4px; }
.chart-sub { font-size: 13px; color: var(--mute); margin-bottom: 26px; }
.chart-sub b { color: var(--ink); }
.hbars { gap: 4px; }
.hbars li { grid-template-columns: 120px 1fr 48px; padding: 8px 0; cursor: default; }
.hbars li span { color: var(--ink); }
.hbars li i { height: 14px; background: var(--gold); min-width: 4px; }
.hbars li b { font: 600 14px var(--f-title); text-align: right; }
.hbars li:hover i { background: #7c5c27; }

/* --------------------------------------------------------------------------
   Project / phases
   -------------------------------------------------------------------------- */
.phase-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.phase { background: #fff; border: 1px solid var(--line-soft); display: flex; flex-direction: column; }
.phase figure { position: relative; margin: 0; aspect-ratio: 16 / 9; overflow: hidden; }
.phase figure img { width: 100%; height: 100%; object-fit: cover; }
.phase figure span { position: absolute; left: 0; top: 22px; padding: 9px 18px; background: var(--navy); color: var(--gold-lt); font: 600 11px var(--f-title); letter-spacing: .18em; text-transform: uppercase; }
.phase-body { padding: clamp(24px, 2.6vw, 36px); }
.phase-body h3 { font-size: clamp(18px, 1.6vw, 22px); margin-bottom: 20px; }
.phase dl { margin: 0 0 20px; }
.phase dl div { display: grid; grid-template-columns: 130px 1fr; gap: 12px; padding: 9px 0; border-bottom: 1px solid var(--line-soft); font-size: 14px; }
.phase dt { font: 600 10.5px/1.9 var(--f-title); letter-spacing: .12em; text-transform: uppercase; color: var(--gold); }
.phase dd { margin: 0; }
.phase dd b { color: var(--gold); font-family: var(--f-title); }
.phase-body > p { font-size: 14px; color: var(--mute); }
.benefit { display: grid; grid-template-columns: 1fr 1.3fr 1fr; gap: 20px; margin-top: 24px; }
.benefit article { padding: 30px; background: #fff; border: 1px solid var(--line-soft); }
.benefit h3 { margin-bottom: 16px; }
.ticks li { position: relative; padding: 6px 0 6px 26px; font-size: 14px; }
.ticks li::before { content: ""; position: absolute; left: 2px; top: 11px; width: 10px; height: 5px; border-left: 1.5px solid var(--gold); border-bottom: 1.5px solid var(--gold); transform: rotate(-45deg); }
.ticks.cols { columns: 2; column-gap: 20px; }
.ticks.cols li { break-inside: avoid; }
.benefit .benefit-num { background: var(--navy); border-color: var(--navy); color: #fff; display: grid; gap: 22px; }
.benefit-num b { background: var(--gold-grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.benefit-num p { margin: 6px 0 0; font-size: 13px; color: rgba(255, 255, 255, .66); }
.benefit-num div + div { padding-top: 22px; border-top: 1px solid rgba(224, 198, 141, .22); }

/* --------------------------------------------------------------------------
   Financials
   -------------------------------------------------------------------------- */
.kpi-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.kpi-grid article { position: relative; display: flex; flex-direction: column; align-items: center; text-align: center; padding: 36px 20px 30px; border: 1px solid rgba(224, 198, 141, .2); background: rgba(255, 255, 255, .03); }
.kpi-grid svg { position: absolute; top: 24px; left: 50%; width: 150px; height: 150px; transform: translateX(-50%) rotate(-90deg); }
.kpi-grid circle { fill: none; stroke-width: 3; }
.kpi-grid .trk { stroke: rgba(255, 255, 255, .12); }
.kpi-grid .val { stroke: var(--gold-soft); stroke-linecap: round; stroke-dasharray: 326.7; stroke-dashoffset: 326.7; transition: stroke-dashoffset 1.6s var(--ease) .2s; }
.kpi-grid article.is-in .val { stroke-dashoffset: calc(326.7 * (1 - var(--p))); }
.kpi-grid b { margin-top: 52px; color: #fff; font-size: clamp(30px, 2.6vw, 40px); }
.kpi-grid s { margin-top: 6px; }
.kpi-grid p { margin: 62px 0 0; font-size: 14px; color: rgba(233, 236, 239, .74); }

/* --------------------------------------------------------------------------
   Roadmap
   -------------------------------------------------------------------------- */
.timeline { display: grid; grid-template-columns: repeat(7, 1fr); position: relative; }
.timeline::before { content: ""; position: absolute; left: 0; right: 0; top: 46px; height: 1px; background: var(--line); }
.timeline li { position: relative; padding: 0 16px 0 0; }
.timeline li::before { content: ""; position: absolute; left: 0; top: 40px; width: 13px; height: 13px; border-radius: 50%; background: #fff; border: 1.5px solid var(--gold-soft); }
.timeline li.is-key::before { background: var(--gold-soft); box-shadow: 0 0 0 6px rgba(183, 149, 82, .18); }
.timeline span { display: block; height: 30px; font: 600 15px var(--f-title); color: var(--gold); letter-spacing: -.01em; }
.timeline h3 { margin: 44px 0 8px; font-size: 15.5px; }
.timeline p { font-size: 13px; color: var(--mute); }
.rev { margin-top: clamp(56px, 6vw, 88px); padding: clamp(24px, 3vw, 40px); background: var(--ivory); border: 1px solid var(--line-soft); }
.rev-head { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: baseline; gap: 4px 24px; }
.vbars { display: grid; grid-template-columns: repeat(5, 1fr); gap: clamp(10px, 3vw, 48px); height: 240px; align-items: end; border-bottom: 1px solid var(--line); }
.vbar { height: 100%; display: flex; flex-direction: column; justify-content: flex-end; align-items: center; position: relative; cursor: default; }
.vbar i { width: min(64px, 70%); height: calc(var(--v) * 78%); background: var(--gold); border-radius: 4px 4px 0 0; transform: scaleY(0); transform-origin: bottom; transition: transform 1.1s var(--ease); }
.vbars.is-in .vbar i { transform: scaleY(1); }
.vbar:nth-child(2) i { transition-delay: .06s; } .vbar:nth-child(3) i { transition-delay: .12s; } .vbar:nth-child(4) i { transition-delay: .18s; } .vbar:nth-child(5) i { transition-delay: .24s; }
.vbar:hover i { background: #7c5c27; }
.vbar b { margin-bottom: 8px; font: 600 14px var(--f-title); }
.vbar span { position: absolute; bottom: -28px; font-size: 12.5px; color: var(--mute); }
.rev .vbars { margin-bottom: 30px; }

/* --------------------------------------------------------------------------
   Team
   -------------------------------------------------------------------------- */
.team-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.person { padding: 34px 28px 30px; background: #fff; border: 1px solid var(--line-soft); transition: transform .5s var(--ease), box-shadow .5s; }
.person:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.person.is-lead { background: var(--navy); border-color: var(--navy); color: #fff; }
.person img { width: 124px; height: 124px; border-radius: 50%; object-fit: cover; margin-bottom: 24px; box-shadow: 0 0 0 4px #fff, 0 0 0 5px var(--gold-soft); }
.person.is-lead img { box-shadow: 0 0 0 4px var(--navy), 0 0 0 5px var(--gold-lt); }
.person h3 { margin-bottom: 4px; }
.person.is-lead h3 { color: #fff; }
.role { font: 600 11px/1.5 var(--f-title); letter-spacing: .14em; text-transform: uppercase; color: var(--gold); margin-bottom: 18px; }
.person.is-lead .role { color: var(--gold-lt); }
.person ul li { position: relative; padding: 7px 0 7px 16px; border-top: 1px solid var(--line-soft); font-size: 13.5px; color: var(--mute); }
.person.is-lead ul li { border-color: rgba(255, 255, 255, .12); color: rgba(255, 255, 255, .78); }
.person ul li::before { content: ""; position: absolute; left: 0; top: 15px; width: 5px; height: 5px; transform: rotate(45deg); background: var(--gold-soft); }

/* --------------------------------------------------------------------------
   Gallery + lightbox
   -------------------------------------------------------------------------- */
.gal-grid { display: grid; grid-template-columns: repeat(4, 1fr); grid-auto-rows: clamp(160px, 15vw, 240px); gap: 14px; }
.gal-grid button { padding: 0; border: 0; overflow: hidden; cursor: zoom-in; background: #e8e6df; }
.gal-grid .g1 { grid-column: span 2; grid-row: span 2; }
.gal-grid .g2 { grid-row: span 2; }
.gal-grid img { width: 100%; height: 100%; object-fit: cover; transition: transform 1.2s var(--ease), filter .5s; }
.gal-grid button:hover img { transform: scale(1.06); }
.lb { position: fixed; inset: 0; z-index: 2500; display: flex; align-items: center; justify-content: center; padding: 60px 70px; background: rgba(6, 12, 20, .94); }
.lb[hidden] { display: none; }
.lb figure { margin: 0; max-width: 100%; max-height: 100%; display: flex; flex-direction: column; align-items: center; }
.lb img { max-width: 100%; max-height: calc(100vh - 160px); object-fit: contain; }
.lb figcaption { margin-top: 14px; color: rgba(255, 255, 255, .78); font-size: 14px; text-align: center; }
.lb button { position: absolute; border: 0; background: none; color: #fff; cursor: pointer; font-size: 44px; line-height: 1; width: 56px; height: 56px; opacity: .8; }
.lb button:hover { opacity: 1; color: var(--gold-lt); }
.lb-x { top: 14px; right: 14px; }
.lb-prev { left: 8px; top: 50%; transform: translateY(-50%); }
.lb-next { right: 8px; top: 50%; transform: translateY(-50%); }

/* --------------------------------------------------------------------------
   Contact
   -------------------------------------------------------------------------- */
.contact { background: linear-gradient(180deg, #fff 0%, var(--ivory) 100%); }
.contact-grid { display: grid; grid-template-columns: 1.25fr 1fr; gap: clamp(36px, 6vw, 110px); align-items: start; }
.contact h2 { margin-bottom: 20px; }
.contact-copy > p { color: var(--mute); max-width: 46ch; }
.contact-lines { margin-top: 34px; border-top: 1px solid var(--line); }
.contact-lines a, .contact-lines p { display: grid; grid-template-columns: 120px 1fr; gap: 12px; margin: 0; padding: 14px 0; border-bottom: 1px solid var(--line-soft); font-size: 14.5px; }
.contact-lines a { font-weight: 600; transition: color .25s; }
.contact-lines a:hover { color: var(--gold); }
.contact-lines span { font: 600 10.5px/2 var(--f-title); letter-spacing: .14em; text-transform: uppercase; color: var(--gold); }
.contact-form { padding: clamp(26px, 3.4vw, 48px); background: #fff; border: 1px solid var(--line-soft); box-shadow: var(--shadow); }
.field-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.field-grid label { display: grid; gap: 8px; }
.field-grid .full { grid-column: 1 / -1; }
.field-grid span { font: 600 10.5px var(--f-title); letter-spacing: .12em; text-transform: uppercase; color: var(--mute); }
.field-grid input, .field-grid select, .field-grid textarea { width: 100%; padding: 13px 14px; border: 1px solid #dcd8cc; border-radius: 2px; background: #fff; font: 400 14px var(--f-body); color: var(--ink); transition: border-color .25s, box-shadow .25s; }
.field-grid textarea { resize: vertical; }
.field-grid input:focus, .field-grid select:focus, .field-grid textarea:focus { outline: none; border-color: var(--gold-soft); box-shadow: 0 0 0 3px rgba(183, 149, 82, .16); }
.field-grid .is-bad { border-color: #b5462e; }
.contact-form button { display: inline-flex; align-items: center; gap: 10px; margin-top: 26px; height: 52px; padding: 0 30px; border: 0; border-radius: 999px; background: var(--navy); color: #fff; font: 600 12px var(--f-title); letter-spacing: .12em; text-transform: uppercase; cursor: pointer; transition: background .3s, color .3s; }
.contact-form button:hover { background: var(--gold-grad); color: #1d1606; }
.form-note { margin-top: 16px; font-size: 12.5px; color: var(--mute); }
.form-status { min-height: 1em; font-size: 14px; font-weight: 600; color: var(--gold); }
.form-status.is-err { color: #b5462e; }

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
.ft { position: relative; overflow: hidden; padding: clamp(64px, 7vw, 100px) 0 0; background: var(--navy); color: rgba(233, 236, 239, .72); font-size: 14px; }
.ft .shell { position: relative; z-index: 1; }
.ft-top { display: flex; justify-content: space-between; align-items: center; gap: 24px; padding-bottom: 44px; border-bottom: 1px solid rgba(224, 198, 141, .18); }
.ft-logo { width: clamp(180px, 16vw, 240px); }
.ft-claim { margin: 0; text-align: right; font: 300 clamp(18px, 1.8vw, 26px)/1.3 var(--f-title); color: rgba(255, 255, 255, .5); }
.ft-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.3fr; gap: 40px; padding: 48px 0; }
.ft h4 { margin-bottom: 18px; font: 600 11px var(--f-title); letter-spacing: .18em; text-transform: uppercase; color: var(--gold-lt); }
.ft nav { display: grid; gap: 10px; }
.ft a { transition: color .25s; }
.ft a:hover { color: var(--gold-lt); }
.ft-brand p { max-width: 40ch; }
.ft address { margin-top: 18px; font-style: normal; font-size: 13px; }
.ft address strong { display: block; color: #fff; font-weight: 600; margin-bottom: 4px; }
.ft-contact p { margin: 0 0 12px; display: grid; }
.ft-contact span { font: 600 10px var(--f-title); letter-spacing: .14em; text-transform: uppercase; color: rgba(255, 255, 255, .42); }
.ft-contact a { color: #fff; }
.ft-bottom { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; padding: 22px 0 clamp(70px, 9vw, 140px); border-top: 1px solid rgba(224, 198, 141, .18); font-size: 12.5px; color: rgba(233, 236, 239, .5); }
.ft-bottom p { margin: 0; }
.ft-watermark { position: absolute; left: 50%; bottom: -.18em; transform: translateX(-50%); font: 700 clamp(48px, 10.5vw, 190px)/1 var(--f-title); letter-spacing: -.02em; white-space: nowrap; color: transparent; -webkit-text-stroke: 1px rgba(224, 198, 141, .14); pointer-events: none; user-select: none; }

/* Tooltip cho biểu đồ */
.tip { position: fixed; z-index: 2600; padding: 7px 11px; background: var(--navy); color: #fff; font: 600 12px var(--f-body); border-radius: 3px; pointer-events: none; box-shadow: 0 8px 24px rgba(0, 0, 0, .2); transform: translate(-50%, calc(-100% - 12px)); white-space: nowrap; }

/* --------------------------------------------------------------------------
   Motion — chỉ ẩn khi JS chạy được
   -------------------------------------------------------------------------- */
.js [data-mo] { opacity: 0; transition: opacity .9s var(--ease), transform 1s var(--ease), clip-path 1.2s var(--ease); transition-delay: var(--d, 0s); }
html:not(.ds-gsap).js [data-mo="up"] { transform: translateY(34px); }
html:not(.ds-gsap).js [data-mo="left"] { transform: translateX(-34px); }
html:not(.ds-gsap).js [data-mo="right"] { transform: translateX(34px); }
html:not(.ds-gsap).js [data-mo="scale"] { transform: scale(.94); }
html:not(.ds-gsap).js [data-mo="mask"] { clip-path: inset(12% 0 0 0); transform: translateY(24px); }
.js [data-mo].is-in { opacity: 1; transform: none; clip-path: inset(0 0 0 0); }
[data-par] { will-change: transform; }

@media (prefers-reduced-motion: reduce) {
  html:not(.ds-motion-forced) { scroll-behavior: auto; }
  html:not(.ds-motion-forced).js [data-mo] { opacity: 1; transform: none; clip-path: none; transition: none; }
  html:not(.ds-motion-forced) :is(.hero-trace path, .marquee-row, .ring::after, .scroll-cue i) { animation: none; }
  html:not(.ds-motion-forced) .hero-net circle { display: none; }
}

/* --------------------------------------------------------------------------
   Responsive
   -------------------------------------------------------------------------- */
@media (max-width: 1180px) {
  .timeline { grid-template-columns: repeat(4, 1fr); row-gap: 44px; }
  .timeline::before { display: none; }
  .timeline li { border-top: 1px solid var(--line); }
  .timeline li::before { top: -7px; }
  .timeline span { margin-top: 22px; height: auto; }
  .timeline h3 { margin-top: 8px; }
  .team-grid { grid-template-columns: repeat(2, 1fr); }
  .kpi-grid { grid-template-columns: repeat(2, 1fr); }
  .ft-grid { grid-template-columns: 1fr 1fr; }
  .benefit { grid-template-columns: 1fr 1fr; }
  .benefit .benefit-num { grid-column: 1 / -1; grid-template-columns: 1fr 1fr; }
  .benefit-num div + div { padding-top: 0; border-top: 0; padding-left: 22px; border-left: 1px solid rgba(224, 198, 141, .22); }
}

@media (max-width: 960px) {
  .hero-media { width: 100%; opacity: .55; }
  .hero-stats { grid-template-columns: 1fr 1fr; }
  .hero-stats article:nth-child(2) { border-right-width: 1px; }
  .hero-stats article:nth-child(n+3) { border-top: 0; }
  .scroll-cue { display: none; }
  .sec-head-split, .vc-head, .about-grid, .edge-grid, .model-grid, .contact-grid { grid-template-columns: 1fr; }
  .cv-kpis { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .cv-kpis article:nth-child(3) { border-left: 0; }
  .cv-kpis article:nth-child(n+3) { border-top: 1px solid var(--line-soft); }
  .cv-body { grid-template-columns: 1fr; }
  .compare-visual figure { min-height: 0; aspect-ratio: 16 / 7; }
  .about-visual { max-width: 620px; }
  .chain { grid-template-columns: 1fr 1fr; gap: 12px 0; }
  .chain li:nth-child(3) { margin-left: 0; padding-left: 26px; --cp: polygon(0 0, calc(100% - 22px) 0, 100% 50%, calc(100% - 22px) 100%, 0 100%); }
  .market-grid { grid-template-columns: 1fr; }
  .vc-view { grid-template-columns: 1fr; }
  .vc-line { grid-template-columns: repeat(7, minmax(84px, 1fr)); overflow-x: auto; padding-bottom: 8px; scrollbar-width: none; }
  .vc-line::-webkit-scrollbar { display: none; }
  .vc-line::before, .vc-line::after { display: none; }
  .vc-out-grid { grid-template-columns: 1fr; }
  .prod, .prod.is-lead { grid-column: span 6; }
  .prod.is-lead figure { aspect-ratio: 16 / 10; }
  .problem { grid-template-columns: 1fr 1fr; }
  .problem aside { grid-column: 1 / -1; }
  .sol-grid { grid-template-columns: 1fr 1fr; }
  .sol-grid article:nth-child(3) { padding-left: 0; border-left: 0; }
  .sol-grid article { padding-bottom: 26px; }
  .app-grid { grid-template-columns: 1fr 1fr; }
  .charge ol, .opp { grid-template-columns: 1fr; }
  .charge li + li::before { content: "↓"; left: 14px; top: -20px; }
  .phase-grid { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  body { font-size: 14.5px; }
  .hero h1 { font-size: clamp(30px, 8.6vw, 44px); }
  .hero h1 span:first-child { font-size: .58em; }
  .hero-stats article { padding: 16px; }
  .hero-stats b { font-size: 26px; }
  .hero-stats p { font-size: 12px; }
  .btn { height: 48px; padding: 0 22px; }
  .facts div { grid-template-columns: 1fr; gap: 2px; }
  .about-visual figcaption { width: 92%; margin-top: -60px; padding: 22px; }
  .chain { grid-template-columns: 1fr; gap: 10px; }
  .chain li, .chain li + li, .chain li:first-child, .chain li:nth-child(3) { --cp: inset(0 round 10px); margin-left: 0; min-height: 0; padding: 20px 22px; }
  .ch-ico { right: 22px; top: 20px; }
  .mk-pair { gap: 12px; }
  .vc-stage { aspect-ratio: 4 / 3.4; }
  .prod, .prod.is-lead { grid-column: 1 / -1; }
  .problem, .sol-grid { grid-template-columns: 1fr; }
  .sol-grid article, .sol-grid article + article { padding: 26px 0; border-left: 0; border-bottom: 1px solid var(--line-soft); }
  .cv-list { grid-template-columns: 1fr; }
  .cv-kpis b { font-size: 24px; white-space: nowrap; }
  .compare-visual { display: none; }
  .cv-list li { padding: 10px 0; }
  .cv-kpis article { padding: 18px 16px; }
  .cv-kpis em { position: static; display: inline-block; margin-top: 10px; }
  .app-grid { grid-template-columns: 1fr; grid-auto-rows: 220px; }
  .app-grid .is-wide { grid-column: auto; grid-row: span 1; }
  .forces li { grid-template-columns: 1fr 34px; }
  .forces li i { grid-column: 1 / -1; grid-row: 2; }
  .hbars li { grid-template-columns: 96px 1fr 40px; }
  .phase dl div { grid-template-columns: 1fr; gap: 0; }
  .benefit { grid-template-columns: 1fr; }
  .benefit .benefit-num { grid-template-columns: 1fr; }
  .benefit-num div + div { padding: 22px 0 0; border-left: 0; border-top: 1px solid rgba(224, 198, 141, .22); }
  .ticks.cols { columns: 1; }
  .kpi-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
  .kpi-grid article { padding: 26px 10px 22px; }
  .kpi-grid svg { width: 118px; height: 118px; top: 18px; }
  .kpi-grid b { margin-top: 40px; font-size: 26px; }
  .kpi-grid p { margin-top: 44px; font-size: 12.5px; }
  .timeline { grid-template-columns: 1fr; row-gap: 0; border-left: 1px solid var(--line); margin-left: 6px; }
  .timeline li { border-top: 0; padding: 0 0 30px 26px; }
  .timeline li::before { left: -7px; top: 3px; }
  .timeline span { margin-top: 0; }
  .vbars { height: 200px; }
  .vbar b { font-size: 12px; }
  .team-grid { grid-template-columns: 1fr; }
  .gal-grid { grid-template-columns: 1fr 1fr; grid-auto-rows: 150px; gap: 10px; }
  .gal-grid .g1 { grid-column: 1 / -1; }
  .lb { padding: 56px 12px; }
  .lb-prev, .lb-next { top: auto; bottom: 8px; transform: none; }
  .field-grid { grid-template-columns: 1fr; }
  .contact-lines a, .contact-lines p { grid-template-columns: 1fr; gap: 0; }
  .ft-top { flex-direction: column; align-items: flex-start; }
  .ft-claim { text-align: left; }
  .ft-grid { grid-template-columns: 1fr 1fr; gap: 32px 20px; }
  .ft-brand { grid-column: 1 / -1; }
}

/* ==========================================================================
   Biểu tượng Discovery — bảy cánh vàng (vector hoá từ logo, sprite #mk-*)
   ========================================================================== */
.sprite { position: absolute; width: 0; height: 0; overflow: hidden; }
.mk { display: block; overflow: visible; }
.mk .b { fill: url(#mkGold); transform-box: fill-box; transform-origin: 50% 100%; }
.b-c { --bd: 0s; --dl: 0; }
.b-l1, .b-r1 { --bd: .12s; --dl: .1; }
.b-l2, .b-r2 { --bd: .24s; --dl: .2; }
.b-l3, .b-r3 { --bd: .36s; --dl: .3; }

/* Nét mảnh, tự vẽ khi hiện ra */
.mk-line .b { fill: none; stroke: var(--gold-soft); stroke-width: 1; vector-effect: non-scaling-stroke; stroke-dasharray: 1; stroke-dashoffset: 1; transition: stroke-dashoffset 2.6s var(--ease) calc(var(--bd) * 1.6); }
.is-in .mk-line .b, .mk-line.is-in .b { stroke-dashoffset: 0; }

/* Splash intro ----------------------------------------------------------- */
.splash { display: none; }
html.splash-on { overflow: hidden; }
html.splash-on .splash { position: fixed; inset: 0; z-index: 2800; display: flex; align-items: center; justify-content: center; background: radial-gradient(ellipse at 50% 42%, #16283f 0%, var(--navy) 62%); cursor: pointer; transition: opacity .8s ease, transform 1s var(--ease); }
.splash.is-out { opacity: 0; transform: scale(1.04); pointer-events: none; }
.splash-core { display: flex; flex-direction: column; align-items: center; }
.mk-rise { width: clamp(66px, 8vw, 96px); animation: mkGlow 1.4s ease 1.05s both; }
.mk-rise .b { animation: bladeRise 1s var(--ease) both; animation-delay: calc(var(--bd) + .15s); }
@keyframes bladeRise { 0% { transform: translateY(26%) scaleY(0); opacity: 0; } 35% { opacity: 1; } 100% { transform: none; opacity: 1; } }
@keyframes mkGlow { 0%, 100% { filter: drop-shadow(0 0 0 rgba(240, 212, 146, 0)); } 50% { filter: drop-shadow(0 0 22px rgba(240, 212, 146, .55)); } }
.splash-word { display: flex; flex-direction: column; align-items: center; margin: 30px 0 0; color: #fff; }
.splash-word b { font: 600 clamp(22px, 2.6vw, 32px)/1 var(--f-title); letter-spacing: .2em; padding-left: .2em; animation: wordIn 1.1s var(--ease) .55s both; }
.splash-word span { margin-top: 8px; font: 500 clamp(12px, 1.2vw, 15px)/1 var(--f-title); letter-spacing: .62em; padding-left: .62em; color: var(--gold-lt); animation: wordIn 1.1s var(--ease) .75s both; }
@keyframes wordIn { from { opacity: 0; letter-spacing: .7em; filter: blur(6px); } to { opacity: 1; filter: none; } }
.splash-tag { margin-top: 22px; font: 300 12px/1 var(--f-title); font-style: normal; letter-spacing: .3em; text-transform: uppercase; color: rgba(255, 255, 255, .5); animation: fadeIn .8s ease 1.2s both; }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
.splash-bar { position: absolute; left: 50%; bottom: 12vh; width: 140px; height: 1px; margin-left: -70px; background: rgba(255, 255, 255, .12); overflow: hidden; }
.splash-bar::after { content: ""; position: absolute; inset: 0; background: var(--gold-grad); transform: scaleX(0); transform-origin: left; animation: barFill 2.3s cubic-bezier(.6, 0, .3, 1) .1s forwards; }
@keyframes barFill { to { transform: scaleX(1); } }

/* Hero: biểu tượng nét mảnh + icon trước kicker -------------------------- */
.hero-kicker { display: flex; align-items: center; gap: 12px; }
.mk-ico { width: 13px; flex: none; }
.hero-mark { position: absolute; z-index: -1; right: calc(var(--shell) + 4vw); bottom: 31vh; height: min(48vh, 470px); aspect-ratio: 306 / 480; opacity: .42; pointer-events: none; }
.hero-mark .mk { width: 100%; height: 100%; }
.hero-mark .b { stroke: var(--gold-lt); }

/* Hoạ tiết phân cách ---------------------------------------------------- */
.orn { display: flex; align-items: center; gap: 22px; margin: 0 0 clamp(48px, 6vw, 84px); }
.orn i { flex: 1; height: 1px; background: linear-gradient(90deg, transparent, var(--gold-soft)); opacity: .5; transform: scaleX(0); transform-origin: right; transition: transform 1.5s var(--ease) .15s; }
.orn i:last-child { background: linear-gradient(90deg, var(--gold-soft), transparent); transform-origin: left; }
.orn .mk { width: 22px; flex: none; }
.orn .b { transform: translateY(30%) scaleY(0); opacity: 0; transition: transform .9s var(--ease), opacity .5s; transition-delay: calc(var(--bd) + .1s); }
.orn.is-in i, .orn.is-in .b { transform: none; opacity: 1; }
.orn.is-in i { opacity: .5; }

/* Chuỗi giá trị: mỗi công đoạn sáng một cánh ----------------------------- */
.vc-mark { display: flex; align-items: center; gap: 18px; padding-bottom: 20px; margin-bottom: 22px; border-bottom: 1px solid var(--line-soft); }
.vc-mark .mk { width: 40px; flex: none; }
.mk-steps .b { fill: #ebe4d2; transition: fill .6s ease, transform .6s var(--ease); }
.mk-steps .b.is-lit { fill: url(#mkGold); }
.mk-steps .b.is-cur { transform: translateY(-7%); }
.vc-mark p { margin: 0; }
.vc-mark b { display: block; font: 600 15px/1.3 var(--f-title); }
.vc-mark span { display: block; font-size: 12.5px; line-height: 1.5; color: var(--mute); }

/* Band: biểu tượng lớn vươn lên theo cuộn -------------------------------- */
.band-mark { position: absolute; z-index: 2; right: calc(var(--shell) + 4vw); top: 50%; height: 50%; aspect-ratio: 306 / 480; transform: translateY(-50%); pointer-events: none; }   /* cao = 50% khung band */
.band-mark .mk { position: absolute; inset: 0; width: 100%; height: 100%; }
.mk-big { filter: drop-shadow(0 18px 40px rgba(0, 0, 0, .45)); }
html:not(.ds-gsap) .mk-big .b { --k: clamp(0, (var(--rp, 0) - var(--dl)) * 2.4, 1); opacity: var(--k); transform: translateY(calc((1 - var(--k)) * 38%)); }
.band-mark .mk-glow { opacity: .5; mix-blend-mode: screen; }   /* viền sáng trùng khít mép cánh (trước đây lệch 5%/3% trông như in lệch) */
.band-mark .mk-glow .b { stroke: var(--gold-lt); stroke-dasharray: none; stroke-dashoffset: 0; transition: none; }

/* Nút lên đầu trang với vòng tiến trình ---------------------------------- */
.totop { position: fixed; right: clamp(14px, 2vw, 28px); bottom: clamp(14px, 2vw, 28px); z-index: 900; width: 56px; height: 56px; display: grid; place-items: center; border-radius: 50%; background: rgba(10, 20, 32, .92); box-shadow: 0 10px 28px rgba(10, 20, 32, .28); backdrop-filter: blur(8px); opacity: 0; transform: translateY(16px); pointer-events: none; transition: opacity .4s, transform .5s var(--ease); }
.totop.is-on { opacity: 1; transform: none; pointer-events: auto; }
.totop .mk { width: 15px; transition: transform .4s var(--ease); }
.totop:hover .mk { transform: translateY(-3px); }
.totop-ring { position: absolute; inset: 0; transform: rotate(-90deg); }
.totop-ring circle { fill: none; stroke: rgba(255, 255, 255, .14); stroke-width: 1.5; }
.totop-ring .val { stroke: var(--gold-lt); stroke-dasharray: 163.4; stroke-dashoffset: calc(163.4 * (1 - var(--sp, 0))); }

/* Footer: biểu tượng nét mảnh ------------------------------------------ */
.ft-mark { position: absolute; z-index: 0; right: calc(var(--shell) + 6%); bottom: 70px; height: min(420px, 60%); aspect-ratio: 306 / 480; opacity: .3; pointer-events: none; }
.ft-mark .mk { width: 100%; height: 100%; }

@media (max-width: 960px) {
  .hero-mark { right: -6vw; bottom: 32vh; opacity: .3; }
  .band-mark { right: 4vw; opacity: .45; }
}
@media (prefers-reduced-motion: reduce) {
  html:not(.ds-motion-forced) .mk-line .b { stroke-dashoffset: 0; transition: none; }
  html:not(.ds-motion-forced) .mk-big .b { --k: 1; }
  html:not(.ds-motion-forced) :is(.orn i, .orn .b) { transform: none; opacity: 1; transition: none; }
}
.mk-steps .b { cursor: pointer; }


/* ==========================================================================
   HỆ MOTION — đồng bộ discoverygroup.vn & discoveryairways.vn (xem motion.js)
   ========================================================================== */

/* GSAP nắm [data-mo]: tắt transition CSS để hai bên không giẫm lên nhau. */
html.ds-gsap [data-mo] { transition: none !important; }
html.ds-gsap :is(.prod, .person)[data-mo].mo-done { transition: transform .5s var(--ease), box-shadow .5s !important; }

/* Dự phòng không có GSAP: vẫn hai chiều — cuộn qua thì lùi lên trên. */
.ds-motion-css [data-mo].is-out-up { opacity: 0; }
.ds-motion-css [data-mo="up"].is-out-up, .ds-motion-css [data-mo="mask"].is-out-up { transform: translateY(-34px); }
.ds-motion-css [data-mo="scale"].is-out-up { transform: translateY(-17px) scale(.965); }

/* Lenis */
html.lenis, html.lenis body { height: auto; }
.lenis.lenis-smooth { scroll-behavior: auto !important; }
.lenis.lenis-smooth [data-lenis-prevent] { overscroll-behavior: contain; }
.lenis.lenis-stopped { overflow: hidden; }

/* Tách ký tự tiêu đề ---------------------------------------------------- */
.ds-word { display: inline-block; white-space: nowrap; }
.ds-char { display: inline-block; }
.ds-chunk { display: inline-block; }
html.ds-split-armed .ds-split .ds-char { opacity: 0; transform: translateY(.38em); }

/* Con trỏ "wafer" — chỉ khi có chuột thật và trang đã mở khoá ------------
   Một khung vuông --cd (30 / 56 / 84px) đặt góc trên-trái tại đầu chuột trừ
   nửa cạnh; mọi lớp con xếp chồng trong khung đó. Nền sáng dùng vàng đậm,
   nền tối / ảnh dùng vàng ngà. */
.ds-cursor, .ds-sparks { display: none; }
@media (hover: hover) and (pointer: fine) {
  html.ds-cursor-on:not(.locked), html.ds-cursor-on:not(.locked) * { cursor: none !important; }
  .ds-cursor { position: fixed; z-index: 10000; top: 0; left: 0; display: block; width: var(--cd, 30px); height: var(--cd, 30px); color: var(--gold); pointer-events: none; opacity: 0; transition: opacity .3s ease, color .3s ease, width .38s var(--ease), height .38s var(--ease); will-change: transform; }
  .ds-cursor.is-ready { opacity: 1; }
  .ds-cursor.on-dark { color: #f3dfae; }

  /* wafer: vòng có khía + lưới die + vạch căn chỉnh */
  .ds-cursor-wafer { position: absolute; inset: 0; width: 100%; height: 100%; overflow: visible; filter: drop-shadow(0 0 1.5px rgba(8, 14, 22, .35)); transition: transform .3s var(--ease), opacity .3s ease; }
  .ds-cursor.on-dark .ds-cursor-wafer { filter: drop-shadow(0 0 4px rgba(224, 198, 141, .45)); }
  .ds-cursor-wafer path { fill: none; stroke: currentColor; vector-effect: non-scaling-stroke; }
  .ds-cw-ring { stroke-width: 1.4; stroke-linejoin: round; }
  .ds-cw-grid { stroke-width: 1; stroke-dasharray: 2 3; opacity: 0; transition: opacity .35s ease; }
  .ds-cw-ticks { stroke-width: 1.4; stroke-linecap: round; transition: opacity .25s ease; }
  .ds-cw-spin { transform-box: view-box; transform-origin: 50% 50%; }

  .ds-cursor-dot { position: absolute; left: 50%; top: 50%; width: 4px; height: 4px; margin: -2px 0 0 -2px; border-radius: 999px; background: currentColor; box-shadow: 0 0 6px rgba(224, 198, 141, .7); transition: opacity .25s ease, transform .3s var(--ease), width .25s var(--ease), height .25s var(--ease), margin .25s var(--ease), border-radius .25s; }
  .ds-cursor-mk { position: absolute; left: 50%; top: 50%; width: 12px; margin: -9.5px 0 0 -6px; opacity: 0; transform: translateY(4px) scale(.4); transition: opacity .25s ease, transform .4s var(--ease); }
  .ds-cursor-lens { position: absolute; inset: 0; border-radius: 50%; background: radial-gradient(circle, rgba(10, 20, 32, .16), rgba(10, 20, 32, .42)); backdrop-filter: blur(3px) saturate(1.25); -webkit-backdrop-filter: blur(3px) saturate(1.25); opacity: 0; transform: scale(.6); transition: opacity .3s ease, transform .45s var(--ease); }
  .ds-cursor-label { position: absolute; left: 50%; top: 50%; font: 700 9px/1 var(--f-body); letter-spacing: .26em; padding-left: .26em; text-transform: uppercase; color: #fff8ea; white-space: nowrap; opacity: 0; transform: translate(-50%, -20%); transition: opacity .3s ease, transform .4s var(--ease); }
  .ds-cursor-pulse { position: absolute; left: 50%; top: 50%; width: 30px; height: 30px; border-radius: 50%; border: 1px solid currentColor; box-shadow: 0 0 14px rgba(224, 198, 141, .6), inset 0 0 10px rgba(224, 198, 141, .35); opacity: 0; transform: translate(-50%, -50%); pointer-events: none; }

  /* liên kết: wafer nở, lưới die hiện, xoay chậm; tâm là biểu tượng 7 cánh */
  .ds-cursor.is-link .ds-cw-grid { opacity: .5; }
  .ds-cursor.is-link .ds-cw-ticks, .ds-cursor.is-media .ds-cw-ticks { opacity: 0; }
  .ds-cursor:is(.is-link, .is-media) .ds-cw-spin { animation: dsWaferSpin 14s linear infinite; }
  @keyframes dsWaferSpin { to { transform: rotate(360deg); } }
  .ds-cursor.is-link .ds-cursor-dot { opacity: 0; transform: scale(.3); }
  .ds-cursor.is-link .ds-cursor-mk { opacity: 1; transform: none; }
  /* đĩa kính mờ phía sau để biểu tượng đọc được trên mọi nền (nút vàng, chữ menu) */
  .ds-cursor.is-link .ds-cursor-lens { opacity: 1; transform: none; background: rgba(250, 248, 243, .78); box-shadow: 0 4px 14px rgba(10, 20, 32, .12); }
  .ds-cursor.is-link.on-dark .ds-cursor-lens { background: rgba(10, 20, 32, .62); box-shadow: 0 4px 16px rgba(0, 0, 0, .3); }

  /* ảnh: thấu kính kính mờ + nhãn XEM */
  .ds-cursor.is-media { color: #f3dfae; }
  .ds-cursor.is-media .ds-cursor-lens { opacity: 1; transform: none; }
  .ds-cursor.is-media .ds-cw-grid { opacity: .32; }
  .ds-cursor.is-media .ds-cursor-dot { opacity: 0; }
  .ds-cursor.is-media .ds-cursor-label { opacity: 1; transform: translate(-50%, -50%); }

  /* chữ: wafer thu lại, chấm thành con nháy */
  .ds-cursor.is-text .ds-cursor-wafer { opacity: 0; transform: scale(.5); }
  .ds-cursor.is-text .ds-cursor-dot { width: 1.5px; height: 22px; margin: -11px 0 0 -.75px; border-radius: 1px; box-shadow: none; }

  /* nhấn: siết vào */
  .ds-cursor.is-down .ds-cursor-wafer { transform: scale(.82); }
  .ds-cursor.is-down.is-link .ds-cursor-mk { transform: scale(.85); }

  /* hạt plasma */
  .ds-sparks { position: fixed; inset: 0; z-index: 9999; display: block; pointer-events: none; overflow: hidden; }
  html.locked .ds-sparks { display: none; }
  .ds-sparks i { position: absolute; left: -3.5px; top: -3.5px; width: 7px; height: 7px; border-radius: 50%; background: radial-gradient(circle, #fffaf0 0%, #f0d9a2 45%, rgba(224, 198, 141, 0) 100%); box-shadow: 0 0 10px 1px rgba(240, 215, 160, .75); opacity: 0; }
  .ds-sparks:not(.on-dark) i { background: radial-gradient(circle, #f3dca4 0%, #c39a44 50%, rgba(156, 117, 53, 0) 100%); box-shadow: 0 0 8px rgba(183, 149, 82, .6); }
}

/* Nút nam châm: transform do JS ghi từng khung, không để transition làm trễ */
.ds-mag { will-change: transform; }
.ds-mag > * { pointer-events: none; }
html.ds-mag-on .ds-mag { transition-property: box-shadow, background-color, border-color, color, opacity; }

/* Vệt sáng gold quét qua ảnh khi rê chuột ---------------------------------- */
.ds-depth { position: relative; overflow: hidden; }
.ds-depth::after { content: ""; position: absolute; inset: 0; z-index: 1; background: linear-gradient(115deg, transparent 34%, rgba(255, 244, 214, .26) 50%, transparent 66%); transform: translateX(-110%); transition: transform 1.05s var(--ease); pointer-events: none; }
.ds-depth:hover::after, .prod:hover .ds-depth::after { transform: translateX(110%); }
.ds-depth:hover img, .prod:hover .ds-depth img { filter: saturate(1.06) contrast(1.03); }

/* Liên kết: gạch chân chạy (Airways .tb-more) ----------------------------- */
.ft nav a, .contact-lines a { background-image: linear-gradient(currentColor, currentColor); background-size: 0% 1px; background-repeat: no-repeat; background-position: left 100%; transition: background-size .55s var(--ease), color .25s; }
.ft nav a { justify-self: start; }
.ft nav a:hover, .contact-lines a:hover { background-size: 100% 1px; }

/* Dải chữ chạy: tan dần ở hai mép (Airways) */
.marquee { -webkit-mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent); mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent); }

/* Mốc lộ trình đang đi qua giữa màn hình */
.timeline li::before { transition: background .4s, box-shadow .5s var(--ease), transform .5s var(--ease); }
.timeline h3 { transition: color .4s; }
.timeline li.is-on::before { background: var(--gold-soft); transform: scale(1.25); box-shadow: 0 0 0 7px rgba(183, 149, 82, .2); }
.timeline li.is-on h3 { color: var(--gold); }

/* Thẻ mở như cánh cửa / số gập lên — [data-e3] (Airways) ------------------- */
.app-grid.is-armed, .gal-grid.is-armed { perspective: 1000px; perspective-origin: 50% 50%; }
.apps:has(.app-grid.is-armed), .gallery:has(.gal-grid.is-armed) { overflow-x: clip; }
.app-grid.is-armed figure, .gal-grid.is-armed button { transform-origin: 0% 50%; opacity: 0; transform: translate3d(13%, 0, 0) rotateY(48deg); transition: opacity .4s ease-out var(--e3-d, 0s), transform 1.3s cubic-bezier(.16, 1, .28, 1) var(--e3-d, 0s); }
.app-grid.is-armed.is-in figure, .gal-grid.is-armed.is-in button { opacity: 1; transform: none; }
:is(.app-grid, .gal-grid).is-armed > :nth-child(2) { --e3-d: .12s; }
:is(.app-grid, .gal-grid).is-armed > :nth-child(3) { --e3-d: .24s; }
:is(.app-grid, .gal-grid).is-armed > :nth-child(4) { --e3-d: .36s; }
:is(.app-grid, .gal-grid).is-armed > :nth-child(5) { --e3-d: .48s; }
:is(.app-grid, .gal-grid).is-armed > :nth-child(6) { --e3-d: .6s; }
:is(.app-grid, .gal-grid).is-armed > :nth-child(7) { --e3-d: .72s; }
:is(.app-grid, .gal-grid).is-armed > :nth-child(8) { --e3-d: .84s; }
.kpi-grid.is-armed b { transform-origin: 50% 100%; opacity: 0; transform: perspective(340px) rotateX(72deg); transition: opacity .3s ease-out var(--e3-d, 0s), transform 1s cubic-bezier(.16, 1, .28, 1) var(--e3-d, 0s); }
.kpi-grid.is-armed.is-in b { opacity: 1; transform: none; }
.kpi-grid.is-armed :is(s, p) { opacity: 0; transform: translate3d(0, 10px, 0); transition: opacity .55s ease-out var(--e3-d2, 0s), transform .7s cubic-bezier(.16, 1, .28, 1) var(--e3-d2, 0s); }
.kpi-grid.is-armed.is-in :is(s, p) { opacity: 1; transform: none; }
.kpi-grid.is-armed article:nth-child(1) { --e3-d: 0s; --e3-d2: .22s; }
.kpi-grid.is-armed article:nth-child(2) { --e3-d: .17s; --e3-d2: .39s; }
.kpi-grid.is-armed article:nth-child(3) { --e3-d: .34s; --e3-d2: .56s; }
.kpi-grid.is-armed article:nth-child(4) { --e3-d: .51s; --e3-d2: .73s; }

/* Thanh cuộn hình logo — kéo được ----------------------------------------- */
@media (min-width: 901px) {
  html.ds-sr-on { scrollbar-width: none; }
  html.ds-sr-on::-webkit-scrollbar { width: 0; height: 0; }
}
.ds-sr { --ds-sr-top: 96px; --ds-sr-bot: 110px; position: fixed; z-index: 880; right: clamp(8px, 1vw, 16px); top: 0; bottom: 0; width: 40px; pointer-events: none; opacity: 0; transition: opacity .5s var(--ease); }
.ds-sr.is-on { opacity: 1; }
html.splash-on .ds-sr { visibility: hidden; }
.ds-sr-track, .ds-sr-fill { position: absolute; left: 50%; width: 1px; margin-left: -.5px; top: var(--ds-sr-top); }
.ds-sr-track { bottom: var(--ds-sr-bot); background: rgba(157, 123, 63, .22); }
.ds-sr-fill { height: calc((100% - var(--ds-sr-top) - var(--ds-sr-bot)) * var(--ds-sr-p, 0)); background: linear-gradient(180deg, var(--gold), var(--gold-lt)); }
.ds-sr-thumb { position: absolute; left: 50%; width: 22px; aspect-ratio: 306 / 480; margin-left: -11px; top: calc(var(--ds-sr-top) + (100% - var(--ds-sr-top) - var(--ds-sr-bot)) * var(--ds-sr-p, 0)); transform: translateY(-50%); background: linear-gradient(160deg, #f0d492, #c39a44 52%, #9c7535); -webkit-mask: url("../img/mark.svg") center / contain no-repeat; mask: url("../img/mark.svg") center / contain no-repeat; filter: drop-shadow(0 3px 8px rgba(157, 123, 63, .45)); border: 0; padding: 0; cursor: grab; pointer-events: auto; touch-action: none; transition: filter .3s var(--ease); }
.ds-sr-thumb:active { cursor: grabbing; }
.ds-sr.is-drag .ds-sr-thumb { filter: drop-shadow(0 4px 16px rgba(157, 123, 63, .75)); }
.ds-sr-thumb:focus-visible { outline: 2px solid var(--gold); outline-offset: 4px; }
/* Ray chiếm mép phải: lùi nút lên đầu trang và gợi ý cuộn vào trong một chút */
html.ds-sr-on .totop { right: 56px; }
html.ds-sr-on .scroll-cue { right: calc(var(--shell) + 24px); }
@media print { .ds-sr, .ds-cursor, .ds-sparks { display: none; } }

/* ======================================================================
   Hành trình giá trị: cát → wafer — khung dính (sticky) 100vh, cuộn ~5 màn
   (vẽ bằng assets/js/forge.js)
   ====================================================================== */
.sx { --line-dk: rgba(224, 198, 141, .16); position: relative; height: 520vh; padding: 0; background: var(--navy); color: #fff; }
.sx-pin { position: sticky; top: 0; height: 100vh; height: 100svh; overflow: hidden; background: radial-gradient(ellipse 60% 70% at 66% 52%, #14243a 0%, var(--navy) 70%); }
.sx-canvas { position: absolute; inset: 0; width: 100%; height: 100%; }
.sx-logo { position: absolute; width: var(--lw, 90px); height: auto; aspect-ratio: 306 / 480; left: var(--lx, 66%); top: var(--ly, 50%); transform: translate(-50%, -50%) scale(var(--ls, .7)); opacity: var(--lo, 0); filter: drop-shadow(0 6px 18px rgba(0, 0, 0, .55)) drop-shadow(0 0 22px rgba(240, 212, 146, .35)); pointer-events: none; }
.sx-copy { position: absolute; inset: 0; display: flex; flex-direction: column; justify-content: center; padding-top: var(--hd-h); pointer-events: none; }
.sx-copy > * { max-width: 400px; }
.sx-copy h2 { max-width: 15em; margin-bottom: 28px; font-size: var(--h2); font-weight: 600; color: #fff; }
.sx-copy h2 span { display: block; font-weight: 400; }
.sx-copy h2 span { color: var(--gold-lt); }
.sx .eyebrow { color: var(--gold-lt); }
.sx-steps { position: relative; list-style: none; margin: 0; padding: 0; min-height: 150px; }
.sx-step { position: absolute; inset: 0 0 auto; display: grid; grid-template-columns: 44px 1fr; gap: 4px 14px; opacity: 0; transform: translateY(14px); transition: opacity .45s ease, transform .6s var(--ease); }
.sx-step.is-on { opacity: 1; transform: none; }
.sx-step i { grid-row: span 3; font: 300 30px/1 var(--f-title); font-style: normal; color: var(--gold-lt); }
.sx-step b { font: 600 19px/1.3 var(--f-title); }
.sx-step p { font-size: 14px; color: rgba(255, 255, 255, .68); }
.sx-step s { text-decoration: none; font: 600 12px var(--f-title); letter-spacing: .06em; color: var(--gold-lt); margin-top: 4px; }
.sx-meter { display: grid; grid-template-columns: 1fr auto; gap: 10px 20px; align-items: end; margin-top: 18px; padding-top: 20px; border-top: 1px solid var(--line-dk); }
.sx-meter small { display: block; font: 600 10px var(--f-title); letter-spacing: .16em; text-transform: uppercase; color: rgba(255, 255, 255, .5); margin-bottom: 6px; }
.sx-meter b { font: 600 clamp(28px, 2.8vw, 40px)/1 var(--f-title); letter-spacing: -.03em; font-variant-numeric: tabular-nums; background: var(--gold-grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.sx-meter span { margin-left: 6px; font-size: 13px; color: rgba(255, 255, 255, .6); }
.sx-mult { text-align: right; }
.sx-mult b { font-size: clamp(20px, 1.8vw, 26px); }
.sx-bar { grid-column: 1 / -1; height: 3px; background: rgba(255, 255, 255, .1); border-radius: 2px; overflow: hidden; }
.sx-bar i { display: block; height: 100%; width: 100%; background: var(--gold-grad); transform-origin: left; transform: scaleX(var(--bp, 0)); }
.sx-dots { position: absolute; right: var(--shell); top: 50%; transform: translateY(-50%); display: grid; gap: 14px; }
.sx-dots i { width: 8px; height: 8px; border-radius: 50%; border: 1px solid var(--gold-lt); transition: background .3s, transform .4s var(--ease); }
.sx-dots i.is-on { background: var(--gold-lt); transform: scale(1.35); }
.sx-hint { position: absolute; left: 50%; bottom: 26px; transform: translateX(-50%); display: flex; align-items: center; gap: 10px; font: 600 10px var(--f-title); letter-spacing: .2em; text-transform: uppercase; color: rgba(255, 255, 255, .5); transition: opacity .4s; }
.sx-hint span { width: 1px; height: 26px; background: linear-gradient(var(--gold-lt), transparent); animation: sxHint 1.8s var(--ease) infinite; }
@keyframes sxHint { 0% { transform: scaleY(0); transform-origin: top; } 50% { transform: scaleY(1); transform-origin: top; } 51% { transform-origin: bottom; } 100% { transform: scaleY(0); transform-origin: bottom; } }
.sx.is-moving .sx-hint { opacity: 0; }

@media (max-width: 760px) {
  .sx { height: 560vh; }
  .sx-copy { justify-content: flex-end; padding-bottom: 28px; }
  .sx-copy > * { max-width: none; }
  .sx-copy .eyebrow { margin-bottom: 8px; }
  .sx-copy h2 { font-size: 24px; margin-bottom: 14px; }
  .sx-copy h2 span { display: inline; }
  .sx-steps { min-height: 118px; }
  .sx-step { grid-template-columns: 34px 1fr; }
  .sx-step i { font-size: 22px; }
  .sx-step b { font-size: 16px; }
  .sx-step p { font-size: 13px; line-height: 1.5; }
  .sx-meter { margin-top: 6px; padding-top: 12px; padding-right: 64px; }   /* chừa chỗ nút lên đầu trang */
  .sx-meter b { font-size: 24px; }
  .sx-dots { top: 92px; transform: none; display: flex; right: auto; left: var(--shell); }
  .sx-hint { display: none; }
}
@media print { .sx { height: auto; } .sx-pin { position: relative; } }

/* ======================================================================
   05 TIÊU CHÍ — "vi mạch Siltron" (assets/js/criteria.js)
   ====================================================================== */
.tc3-head { text-align: center; margin-bottom: clamp(40px, 5vw, 70px); }
.tc3-head h2 .tc3-sub { font-weight: 400; color: var(--gold); }   /* chỉ dòng phụ — h2 còn bị tách thành span từng ký tự */
.tc3-head .eyebrow { justify-content: center; }
.tc3-head .eyebrow::after { content: ""; width: 34px; height: 1px; background: currentColor; }
.tc3-board { position: relative; display: grid; --chip: 208px; width: 80%; margin-inline: auto; grid-template-columns: minmax(0, 1fr) var(--chip) minmax(0, 1fr); grid-template-rows: auto auto auto; --gx: clamp(48px, 5.6vw, 96px); gap: 27px var(--gx); align-items: center; }
.tc3-traces { position: absolute; inset: 0; width: 100%; height: 100%; overflow: visible; pointer-events: none; z-index: 0; }
.tc3-paths path { fill: none; stroke: rgba(156, 117, 53, .32); stroke-width: 1.5; stroke-linejoin: round; transition: stroke .4s, stroke-width .4s; }
.tc3-paths path.is-on { stroke: var(--gold); stroke-width: 2.5; }
.tc3-paths circle { fill: var(--ivory); stroke: rgba(156, 117, 53, .55); stroke-width: 1.5; transition: fill .4s, stroke .4s; }
.tc3-paths circle.is-on { fill: var(--gold-lt); stroke: var(--gold); }
.tc3-pulses circle { fill: #f0d492; }
.tc3-pulses circle.glow { fill: rgba(240, 212, 146, .35); }
.tc3-chip { position: relative; z-index: 1; grid-column: 2; grid-row: 1 / span 2; width: var(--chip); aspect-ratio: 1; padding: 18px; }
.tc3-pins { position: absolute; inset: 0; }
.tc3-pins i { position: absolute; background: linear-gradient(#e9cd8a, #9c7535); border-radius: 1px; transition: background .3s, box-shadow .3s; }
.tc3-pins i.is-on { background: #fff1c9; box-shadow: 0 0 10px rgba(240, 212, 146, .9); }
.tc3-die { position: relative; width: 100%; height: 100%; display: grid; place-content: center; justify-items: center; gap: 6px; border-radius: 10px; background: linear-gradient(145deg, #1a2a40, #0a1420 60%, #060c14); box-shadow: 0 24px 50px rgba(10, 20, 32, .35), inset 0 0 0 1px rgba(224, 198, 141, .35), inset 0 0 0 9px #0d1828, inset 0 0 0 10px rgba(224, 198, 141, .18); color: #fff; overflow: hidden; }
.tc3-die::before { content: ""; position: absolute; inset: 18px; background-image: linear-gradient(rgba(224, 198, 141, .07) 1px, transparent 1px), linear-gradient(90deg, rgba(224, 198, 141, .07) 1px, transparent 1px); background-size: 14px 14px; }
.tc3-die::after { content: ""; position: absolute; inset: -40%; background: linear-gradient(115deg, transparent 40%, rgba(255, 255, 255, .12) 50%, transparent 60%); transform: translateX(var(--sx, -60%)); transition: transform 1.2s var(--ease); }
.tc3-die > * { position: relative; }
.tc3-die .mk { width: 37px; height: 58px; filter: drop-shadow(0 0 14px rgba(240, 212, 146, .35)); }
.tc3-die b { font: 600 12.5px var(--f-title); letter-spacing: .32em; padding-left: .32em; color: var(--gold-lt); }
.tc3-die span { font: 500 9px var(--f-title); letter-spacing: .18em; color: rgba(255, 255, 255, .5); }
.tc3-die em { font-style: normal; color: var(--gold-lt); }
.tc3-cards { display: contents; list-style: none; }
/* Thẻ = module linh kiện — 5 thẻ giống nhau, viền vàng ------------------------ */
@property --ba { syntax: "<angle>"; inherits: false; initial-value: 0deg; }
.tc3-card { position: relative; z-index: 1; padding: 19px 20px; border-radius: 10px; isolation: isolate; cursor: pointer; outline: none; color: var(--gold-lt);
  background: linear-gradient(145deg, #1a2a40 0%, #0a1420 58%, #060c14 100%);
  box-shadow: inset 0 0 0 8px #0d1828, inset 0 0 0 9px rgba(224, 198, 141, .2), 0 18px 40px rgba(10, 20, 32, .22);
  transition: box-shadow .45s, transform .6s var(--ease); }
/* viền vàng ngoài */
.tc3-rim { position: absolute; inset: 0; z-index: -1; border-radius: inherit; padding: 1.3px; pointer-events: none;
  background: linear-gradient(135deg, #f0d492 0%, #9c7535 30%, #ecd29a 55%, #8a6526 78%, #e9cd8a 100%);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0); -webkit-mask-composite: xor; mask: linear-gradient(#000 0 0) content-box exclude, linear-gradient(#000 0 0); }
/* lưới vi mạch như mặt die + đốm sáng theo con trỏ */
.tc3-gloss { position: absolute; inset: 10px; z-index: -1; border-radius: 5px; pointer-events: none;
  background: radial-gradient(180px circle at var(--mx, 85%) var(--my, 0%), rgba(240, 212, 146, .14), rgba(240, 212, 146, 0) 70%),
              linear-gradient(rgba(224, 198, 141, .07) 1px, transparent 1px) 0 0 / 14px 14px,
              linear-gradient(90deg, rgba(224, 198, 141, .07) 1px, transparent 1px) 0 0 / 14px 14px; }
.tc3-card:nth-child(1) { grid-column: 1; grid-row: 1; }
.tc3-card:nth-child(2) { grid-column: 1; grid-row: 2; }
.tc3-card:nth-child(3) { grid-column: 1 / -1; grid-row: 3; justify-self: center; width: calc((100% - var(--chip) - 2 * var(--gx)) / 2); margin: 11px 0 0; }   /* rộng đúng bằng một cột thẻ */
.tc3-card:nth-child(4) { grid-column: 3; grid-row: 1; }
.tc3-card:nth-child(5) { grid-column: 3; grid-row: 2; }
/* dấu pin-1 ở góc trên-trái như trên vi mạch */
.tc3-card::before { content: ""; position: absolute; left: 13px; top: 13px; width: 8px; height: 8px; background: linear-gradient(135deg, var(--gold-lt) 50%, transparent 50%); opacity: .8; }
/* luồng sáng chạy vòng quanh viền (thẻ đang chọn, và một vòng khi thẻ vừa xuất hiện) */
.tc3-card::after { content: ""; position: absolute; inset: -1.5px; padding: 1.5px; border-radius: inherit; pointer-events: none;
  background: conic-gradient(from var(--ba), transparent 0 62%, rgba(255, 244, 208, 0) 66%, #fff6dc 80%, #f0d492 86%, transparent 94%);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0); -webkit-mask-composite: xor; mask: linear-gradient(#000 0 0) content-box exclude, linear-gradient(#000 0 0);
  filter: drop-shadow(0 0 3px rgba(240, 212, 146, .9)); opacity: 0; transition: opacity .5s; animation: tcBorder 3s linear infinite; }
.tc3-card.is-on::after { opacity: 1; }
.tc3-card.is-boot::after { opacity: 1; animation: tcBorder 1.5s cubic-bezier(.45, 0, .2, 1) 1; }
@keyframes tcBorder { to { --ba: 360deg; } }
/* vệt sáng quét chéo khi được chọn / rê chuột */
.tc3-shine { position: absolute; inset: 0; z-index: -1; border-radius: inherit; overflow: hidden; pointer-events: none; }
.tc3-shine::before { content: ""; position: absolute; top: -20%; bottom: -20%; left: 0; width: 45%; background: linear-gradient(105deg, transparent 0%, rgba(255, 240, 200, .0) 20%, rgba(255, 236, 190, .2) 50%, rgba(255, 240, 200, 0) 80%, transparent 100%); transform: translateX(-130%) skewX(-12deg); }
.tc3-card.is-on .tc3-shine::before { animation: tcShine 1.3s var(--ease) .15s 1; }
.tc3-card:hover .tc3-shine::before { animation: tcShine 1.1s var(--ease) 1; }
@keyframes tcShine { from { transform: translateX(-130%) skewX(-12deg); } to { transform: translateX(330%) skewX(-12deg); } }
/* chân cắm: 5 chân vàng nhô ra ở cạnh quay về chip */
.tc3-conn { position: absolute; display: flex; gap: 5px; pointer-events: none; }
.tc3-conn i { display: block; background: linear-gradient(90deg, #9c7535, #f0d492 50%, #9c7535); border-radius: 1px; transition: background .3s, box-shadow .3s; }
.tc3-card[data-side="r"] .tc3-conn, .tc3-card[data-side="l"] .tc3-conn { top: 50%; flex-direction: column; transform: translateY(-50%); }
.tc3-card[data-side="r"] .tc3-conn { right: -9px; }
.tc3-card[data-side="l"] .tc3-conn { left: -9px; }
.tc3-card[data-side="r"] .tc3-conn i, .tc3-card[data-side="l"] .tc3-conn i { width: 8px; height: 3px; }
.tc3-card[data-side="t"] .tc3-conn { top: -9px; left: 50%; transform: translateX(-50%); }
.tc3-card[data-side="t"] .tc3-conn i { width: 3px; height: 8px; background: linear-gradient(#9c7535, #f0d492 50%, #9c7535); }
.tc3-led { position: absolute; top: 18px; right: 18px; width: 7px; height: 7px; border-radius: 50%; background: #26364d; box-shadow: inset 0 0 0 1px rgba(224, 198, 141, .25); transition: background .3s, box-shadow .3s; }
.tc3-row { position: relative; display: flex; flex-direction: column; align-items: center; gap: 10px; margin: 2px 0 8px; text-align: center; }
.tc3-ico { display: grid; place-items: center; width: 38px; height: 38px; border-radius: 8px; background: rgba(224, 198, 141, .07); border: 1px solid rgba(224, 198, 141, .42); box-shadow: inset 0 0 14px rgba(224, 198, 141, .12); color: #ecd29a; transition: background .4s, color .4s, border-color .4s, box-shadow .4s; }
.tc3-ico svg { width: 19px; height: 19px; fill: none; stroke: currentColor; stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; }
.tc3-row small { display: block; font: 600 10px var(--f-title); letter-spacing: .16em; text-transform: uppercase; color: var(--gold-soft); margin-bottom: 3px; }
.tc3-row h3 { display: block; margin: 0; font: 600 14.5px/1.3 var(--f-title); background: var(--gold-grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.tc3-card p { position: relative; text-align: center; margin: 0; font-size: 12.5px; line-height: 1.55; color: rgba(224, 198, 141, .8); }
.tc3-prog { position: absolute; left: 22px; right: 22px; bottom: -1px; height: 2px; border-radius: 2px; background: var(--gold-grad); transform-origin: left; transform: scaleX(0); }
.tc3-card.is-on .tc3-prog { animation: tcProg var(--dur, 5s) linear forwards; }
.tc3.is-paused .tc3-card.is-on .tc3-prog { animation-play-state: paused; }
/* hover / đang chọn */
.tc3-card:hover { transform: translateY(-3px) scale(1.012); }
.tc3-card.is-on, .tc3-card:focus-visible { transform: translateY(-4px); box-shadow: inset 0 0 0 8px #0d1828, inset 0 0 0 9px rgba(240, 212, 146, .45), 0 0 0 4px rgba(240, 212, 146, .2), 0 0 34px rgba(224, 198, 141, .5), 0 24px 48px rgba(10, 20, 32, .3); }
.tc3-card.is-on .tc3-conn i { background: #fff3d2; box-shadow: 0 0 8px rgba(240, 212, 146, .95); }
.tc3-card.is-on .tc3-led { background: #f3d58c; box-shadow: 0 0 0 3px rgba(243, 213, 140, .25), 0 0 10px #f0d492; }
.tc3-card.is-on .tc3-ico { background: var(--gold-grad); border-color: transparent; color: var(--navy); box-shadow: 0 0 18px rgba(240, 212, 146, .45); }

@keyframes tcProg { to { transform: scaleX(1); } }
@media (max-width: 980px) {
  .tc3-board { grid-template-columns: 1fr; width: 100%; gap: 14px; padding-left: 34px; }
  .tc3-chip { grid-column: 1; grid-row: auto; justify-self: center; width: 168px; margin: 0 0 26px -34px; padding: 15px; }
  .tc3-card:nth-child(n) { grid-column: 1; grid-row: auto; width: auto; justify-self: stretch; margin: 0; }
  .tc3-card[data-side] .tc3-conn { left: -8px; right: auto; top: 30px; flex-direction: column; transform: translateY(-50%); }
  .tc3-card[data-side] .tc3-conn i { width: 8px; height: 3px; background: linear-gradient(90deg, #9c7535, #f0d492 50%, #9c7535); }
  .tc3-card[data-side] .tc3-conn i:nth-child(n+4) { display: none; }
  .tc3-die .mk { width: 30px; height: 46px; }
}