/* ==========================================================================
   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);
  /* Bộ nhịp chuyển động DUY NHẤT của site — motion.js đọc lại các biến này */
  --ease: cubic-bezier(.16, 1, .3, 1);        /* ra mượt: hiện, nhấc, trượt vào */
  --ease-io: cubic-bezier(.65, 0, .35, 1);    /* vào–ra: tách dải, chuyển trang, quét */
  --ease-draw: cubic-bezier(.6, 0, .3, 1);    /* vẽ nét, mạch điện */
  --dur-fast: .34s;
  --dur-med: .78s;
  --dur-slow: 1.32s;
  --dur-cine: 1.5s;
  --dist: 44px;                               /* quãng trượt khi hiện */
  --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;
}
@media (max-width: 620px) { :root { --dur-fast: .28s; --dur-med: .64s; --dur-slow: 1.08s; --dur-cine: 1.2s; --dist: 26px; } }

*, *::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, transform .45s var(--ease); }
.hd.is-hidden { transform: translateY(-110%); box-shadow: none; }   /* ẩn khi cuộn xuống, hiện khi cuộn lên */
.hd.is-solid { height: 72px; background: rgba(255, 255, 255, .98); border-bottom-color: rgba(183, 149, 82, .16); box-shadow: 0 8px 28px rgba(46, 39, 25, .08); }
.hd-logo { position: relative; flex: none; width: clamp(150px, 11.8vw, 172px); }
.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; }

/* Header kiểu Discovery Group: dòng tiện ích nhỏ phía trên, menu canh phải, menu con dạng thẻ */
.hd-tools { position: absolute; top: 9px; right: var(--shell); display: flex; gap: 18px; transition: top .3s ease; }
.hd-tools a { padding: 2px 0; font: 500 9px/1.2 var(--f-body); letter-spacing: .12em; text-transform: uppercase; color: rgba(255, 255, 255, .72); transition: color .25s; }
.hd-tools a:hover, .hd-tools a:focus-visible { color: var(--gold-lt); }
.hd.is-solid .hd-tools { top: 6px; }
.hd.is-solid .hd-tools a { color: #30312e; }
.hd.is-solid .hd-tools a:hover, .hd.is-solid .hd-tools a:focus-visible { color: #946d2c; }

.hd-nav { margin-left: auto; display: flex; align-items: center; gap: clamp(18px, 2.15vw, 31px); padding-top: 14px; }
.hd-nav > a, .hd-dd-link { position: relative; display: inline-flex; align-items: center; gap: 8px; padding: 10px 0; font: 400 11px/1 var(--f-body); letter-spacing: .1em; text-transform: uppercase; color: rgba(255, 255, 255, .9); white-space: nowrap; transition: color .25s; }
.hd-nav > .hd-home { font-weight: 700; }
.hd-nav > a::after, .hd-dd-link::after { content: ""; position: absolute; left: 0; right: 0; bottom: 3px; height: 1px; background: var(--gold-soft); transform: scaleX(0); transform-origin: center; transition: transform .35s var(--ease); }
.hd-dd-link::after { right: 13px; }
.hd-nav > a:hover, .hd-nav > a.is-active, .hd-dd-link:hover, .hd-dd-link.is-active, .hd-dd:hover .hd-dd-link { color: var(--gold-lt); }
.hd-nav > a:hover::after, .hd-nav > a.is-active::after, .hd-dd-link.is-active::after, .hd-dd:hover .hd-dd-link::after { transform: scaleX(1); }
.hd.is-solid .hd-nav > a, .hd.is-solid .hd-dd-link { color: #30312e; }
.hd.is-solid .hd-nav > a:hover, .hd.is-solid .hd-nav > a.is-active, .hd.is-solid .hd-dd-link.is-active, .hd.is-solid .hd-dd:hover .hd-dd-link { color: #946d2c; }
.hd-chev { width: 5px; height: 5px; border-right: 1.2px solid currentColor; border-bottom: 1.2px solid currentColor; transform: translateY(-2px) rotate(45deg); transition: transform .3s var(--ease); }
.hd-dd { position: relative; }
.hd-dd-menu { --tx: -50%; position: absolute; top: calc(100% + 10px); left: 50%; width: min(330px, 80vw); padding: 12px; background: rgba(255, 255, 255, .98); border: 1px solid rgba(183, 149, 82, .34); box-shadow: 0 22px 58px rgba(31, 39, 48, .16); opacity: 0; visibility: hidden; transform: translate(var(--tx), 12px); transition: opacity .28s, transform .35s var(--ease), visibility .28s; }
.hd-dd-menu::before { content: ""; position: absolute; left: 0; right: 0; top: -16px; height: 16px; }   /* cầu nối để rê chuột từ mục cha xuống không bị tắt */
.hd-dd-end .hd-dd-menu { --tx: 0px; left: auto; right: -12px; }
.hd-dd-menu a { display: grid; grid-template-columns: 30px 1fr; align-items: center; min-height: 54px; padding: 8px 14px; border: 1px solid transparent; color: #30312e; transition: background .25s, border-color .25s, color .25s; }
.hd-dd-menu a + a { margin-top: 2px; }
.hd-dd-menu span { font: 600 10px/1 var(--f-title); letter-spacing: .12em; color: var(--gold-soft); }
.hd-dd-menu b { font: 500 12.5px/1.35 var(--f-body); letter-spacing: .01em; }
.hd-dd-menu a:hover, .hd-dd-menu a:focus-visible, .hd-dd-menu a.is-active { background: rgba(183, 149, 82, .08); border-color: rgba(183, 149, 82, .24); color: #946d2c; outline: 0; }
@media (min-width: 981px) {
  .hd-dd:hover .hd-dd-menu, .hd-dd:focus-within .hd-dd-menu { opacity: 1; visibility: visible; transform: translate(var(--tx), 0); }
  .hd-dd:hover .hd-chev, .hd-dd:focus-within .hd-chev { transform: translateY(1px) rotate(225deg); }
}
.hd-nav-extra { display: none; }

.hd-burger { display: none; position: relative; flex: none; width: 44px; height: 44px; margin-left: auto; margin-right: -6px; border: 1px solid transparent; background: none; cursor: pointer; transition: border-color .3s, background .3s; }
.hd-burger span { position: absolute; left: 12px; right: 12px; height: 1.5px; 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 { border-color: rgba(183, 149, 82, .45); background: #fffdf8; }
.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; }

@media (max-width: 980px) {
  .hd, .hd.is-solid { height: 68px; }
  .hd-tools { display: none; }
  .hd-burger { display: block; }
  .hd.open { background: rgba(255, 255, 255, .98); backdrop-filter: none; box-shadow: none; }
  .hd.open .hd-logo-dark { opacity: 1; } .hd.open .hd-logo-light { opacity: 0; }
  .hd.open::before { content: ""; position: fixed; inset: 68px 0 0; z-index: -1; background: rgba(10, 20, 32, .38); }
  /* Panel ngà canh giữa, gạch vàng ngắn phía trên — như menu mobile của Discovery Group */
  .hd-nav { position: fixed; top: 80px; left: 16px; right: 16px; max-height: calc(100dvh - 96px); flex-direction: column; align-items: center; gap: 0; margin: 0; padding: 62px 24px 30px; background: #fffdf8; border: 1px solid rgba(183, 149, 82, .3); box-shadow: 0 30px 70px rgba(10, 20, 32, .25); overflow-y: auto; opacity: 0; visibility: hidden; transform: translateY(-10px); transition: opacity .3s, transform .4s var(--ease), visibility .3s; }
  .hd-nav::before { content: ""; position: absolute; top: 34px; left: 50%; width: 30px; height: 1.5px; background: var(--gold-soft); transform: translateX(-50%); }
  .hd.open .hd-nav { opacity: 1; visibility: visible; transform: none; }
  .hd-nav > a, .hd-dd-link, .hd.is-solid .hd-nav > a, .hd.is-solid .hd-dd-link { justify-content: center; padding: 13px 0; font: 500 17px/1.2 var(--f-body); letter-spacing: .07em; color: #30312e; }
  .hd-nav > a::after, .hd-dd-link::after { display: none; }
  .hd-nav > a.is-active, .hd-dd-link.is-active, .hd-dd.is-open .hd-dd-link { color: #946d2c; }
  .hd-dd { width: 100%; display: flex; flex-direction: column; align-items: center; }
  .hd-dd.is-open .hd-chev { transform: translateY(1px) rotate(225deg); }
  .hd-dd-menu, .hd-dd-end .hd-dd-menu { position: static; width: 100%; max-width: 380px; max-height: 0; padding: 0; overflow: hidden; border: 0; box-shadow: none; background: transparent; opacity: 0; visibility: hidden; transform: none; transition: max-height .4s var(--ease), opacity .3s, padding .4s var(--ease), visibility .3s; }
  .hd-dd-menu::before { display: none; }
  .hd-dd.is-open .hd-dd-menu { max-height: 320px; padding: 2px 0 10px; opacity: 1; visibility: visible; }
  .hd-dd-menu a { grid-template-columns: auto auto; justify-content: center; gap: 10px; min-height: 42px; padding: 6px 12px; text-align: center; }
  .hd-dd-menu b { font-size: 14px; }
  .hd-nav-extra { display: flex; flex-direction: column; align-items: center; width: 100%; margin-top: 12px; padding-top: 14px; border-top: 1px solid rgba(183, 149, 82, .2); }
  .hd-nav-extra a { padding: 11px 0; font: 500 15px/1.2 var(--f-body); letter-spacing: .07em; text-transform: uppercase; color: #30312e; }
  .hd-nav-extra a:first-child { color: #946d2c; }
}

/* --------------------------------------------------------------------------
   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: 100%; margin: 18px 0 0; 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 var(--ease-io) 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: nowrap; gap: 5px; }   /* các đối tác nằm cùng 1 hàng */
.ch-tags em { flex: none; padding: 3px 8px; white-space: nowrap; 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: #e6c98a; 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: 20px; }   /* thẻ viền giống khối "vấn đề" phía trên */
.sol-grid article { display: grid; grid-row: span 3; grid-template-rows: subgrid; row-gap: 0; align-content: start; padding: 30px; border: 1px solid var(--line-soft); background: #fff; transition: border-color .35s, box-shadow .35s, transform .5s var(--ease); }
.sol-grid article:hover { border-color: var(--gold-soft); box-shadow: var(--shadow); transform: translateY(-3px); }
.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 .ring { width: 58px; height: 58px; margin-bottom: 22px; font-size: 21px; }
.sol-grid .ring::after { inset: -6px; }
.sol-grid h3 { margin-bottom: 0; padding-bottom: 16px; font-weight: 500; }
.sol-grid h3 + p { padding-top: 14px; border-top: 1px solid var(--line-soft); }
.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; }
  .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 { 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 { padding: 26px; }
  .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 (nền + chữ dùng chung; hiệu ứng ở khối "Splash intro mới" cuối file) */
.splash { display: none; }
html.splash-on { overflow: hidden; }
html.splash-on .splash { position: fixed; inset: 0; z-index: 2800; display: block; background: #0b1625; cursor: pointer; }
.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; } }

/* 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%)); }

/* Nút lên đầu trang với vòng tiến trình ---------------------------------- */

/* 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); }
html.ds-split-armed .ds-split.is-shown .ds-char { opacity: 1; transform: none; }   /* trạng thái cuối, không còn animation treo */

/* 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 var(--ease) 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 var(--ease) 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 var(--ease) 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 .scroll-cue { right: calc(var(--shell) + 24px); }
@media print { .ds-sr { 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; }
/* Xong 5 bước → bỏ ghim cuộn, các bước xếp ngang, vuốt/kéo ngang để chuyển (forge.js thêm .is-free) */
.sx-rail { position: relative; }
.sx-ctrl { display: none; }
.sx.is-free { height: auto; }
.sx.is-free .sx-pin { touch-action: pan-y; user-select: none; -webkit-user-select: none; cursor: grab; }
.sx.is-free .sx-pin.is-drag { cursor: grabbing; }
.sx.is-free .sx-hint { display: none; }
.sx.is-free .sx-rail { overflow: hidden; padding: 4px 0; }
.sx.is-free .sx-steps { display: flex; min-height: 0; transform: translateX(calc(var(--si, 4) * -100% + var(--sdx, 0px))); transition: transform .55s var(--ease); }
.sx.is-free .sx-pin.is-drag .sx-steps { transition: none; }
.sx.is-free .sx-step { position: relative; inset: auto; flex: 0 0 100%; transform: none; opacity: .3; }
.sx.is-free .sx-step.is-on { opacity: 1; }
.sx.is-ctrl .sx-ctrl { display: flex; align-items: center; gap: 14px; margin-top: 14px; pointer-events: auto; font: 600 10px var(--f-title); letter-spacing: .2em; text-transform: uppercase; color: rgba(255, 255, 255, .5); }
.sx-nav { flex: none; display: grid; place-items: center; width: 34px; height: 34px; padding: 0; border-radius: 50%; border: 1px solid rgba(224, 198, 141, .5); background: rgba(224, 198, 141, .06); color: var(--gold-lt); cursor: pointer; transition: background .3s, color .3s, opacity .3s; }
.sx-nav svg { width: 16px; height: 16px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.sx-nav:hover:not(:disabled), .sx-nav:focus-visible { background: var(--gold-grad); color: var(--navy); }
.sx-nav:disabled { opacity: .3; cursor: default; }
.sx .sx-dots i { cursor: pointer; pointer-events: auto; }   /* chấm bấm được ở cả chế độ cuộn */

@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: 88%; 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 10px var(--f-title); letter-spacing: .22em; padding-left: .22em; 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: 18px 22px 17px; 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; }
.tc3-card.is-on::after { animation: tcBorder 3s linear infinite; }   /* chỉ thẻ đang sáng mới chạy viền */
.tc3-card.is-on::after { opacity: 1; }
.tc3-card.is-boot::after { opacity: 1; animation: tcBorder 1.5s var(--ease-io) 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: row; align-items: center; justify-content: flex-start; gap: 12px; margin: 0 0 10px; padding: 0 0 10px max(0px, calc(50% - 112px)); border-bottom: 1px solid rgba(224, 198, 141, .14); text-align: center; }
.tc3-ico { flex: none; display: grid; place-items: center; width: 34px; height: 34px; 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: 17px; height: 17px; 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; text-align: left; 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; }
}

/* Hiệu năng: section ngoài màn hình tạm dừng mọi animation CSS (site.js gắn .is-off) */
.is-off, .is-off *, .is-off::before, .is-off::after, .is-off *::before, .is-off *::after { animation-play-state: paused !important; }
.is-off .tc3-prog { animation-play-state: running !important; }

/* ==========================================================================
   Thẻ navy đồng bộ (giải pháp · đầu ra sản phẩm · KPI so sánh · thiết bị
   tự động sạc · cơ hội thị trường · lợi ích): nền xanh đậm lưới die mờ,
   viền + chữ nhấn vàng gold — cùng ngôn ngữ với thẻ chip 05 tiêu chí.
   ========================================================================== */
:is(.sol-grid article, .vc-out article, .cv-kpis article, .charge, .opp article, .benefit article) {
  --nv-bd: rgba(224, 198, 141, .3);
  position: relative; isolation: isolate; overflow: hidden;
  background: linear-gradient(150deg, #15263d 0%, #0b1625 55%, #070e18 100%);
  border: 1px solid var(--nv-bd);
  color: rgba(233, 236, 239, .74);
  box-shadow: 0 18px 40px rgba(10, 20, 32, .16);
  transition: border-color .4s, box-shadow .4s, transform .6s var(--ease);
}
:is(.sol-grid article, .vc-out article, .cv-kpis article, .charge, .opp article, .benefit article)::before {
  content: ""; position: absolute; inset: 0; z-index: -1; pointer-events: none;
  background-image: linear-gradient(rgba(224, 198, 141, .05) 1px, transparent 1px), linear-gradient(90deg, rgba(224, 198, 141, .05) 1px, transparent 1px);
  background-size: 22px 22px;
  -webkit-mask-image: linear-gradient(160deg, #000, transparent 78%); mask-image: linear-gradient(160deg, #000, transparent 78%);
}
:is(.sol-grid article, .vc-out article, .cv-kpis article, .charge, .opp article, .benefit article)::after {
  content: ""; position: absolute; left: 0; right: 0; top: 0; height: 1px; pointer-events: none;
  background: linear-gradient(90deg, transparent, var(--gold-lt), transparent); opacity: .5; transition: opacity .4s;
}
:is(.sol-grid article, .vc-out article, .cv-kpis article, .opp article, .benefit article):hover {
  --nv-bd: rgba(224, 198, 141, .65);
  transform: translateY(-3px);
  box-shadow: 0 26px 52px rgba(10, 20, 32, .28), 0 0 26px rgba(224, 198, 141, .12);
}
:is(.sol-grid article, .vc-out article, .cv-kpis article, .opp article, .benefit article):hover::after { opacity: 1; }
:is(.sol-grid, .vc-out, .opp, .benefit) b, .cv-kpis s b { color: #f0d492; }

/* Giải pháp: vòng số vàng xoay như cũ */
.sol-grid .ring { border-color: var(--gold-lt); color: var(--gold-lt); background: rgba(224, 198, 141, .06); box-shadow: inset 0 0 16px rgba(224, 198, 141, .12); }
.sol-grid .ring::after { border-color: rgba(224, 198, 141, .5); }
.sol-grid h3 { color: var(--gold-lt); }
.sol-grid h3 + p { border-top-color: rgba(224, 198, 141, .18); }
.sol-grid p { color: rgba(233, 236, 239, .72); }

/* Đầu ra sản phẩm 45 / 40 / 15% */
.vc-out b { font-weight: 300; background: var(--gold-grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.vc-out b i { color: var(--gold-lt); -webkit-text-fill-color: var(--gold-lt); }
.vc-out h3 { color: #fff; }
.vc-out p { color: rgba(233, 236, 239, .7); }
.vc-out article { padding-left: 32px; }
.vc-out article > b::after { content: ""; display: block; width: 34px; height: 1px; margin-top: 16px; background: var(--gold-soft); }

/* KPI so sánh: 4 thẻ rời */
.cv-kpis { gap: 16px; border: 0; background: none; }
.cv-kpis article:nth-child(n) { border: 1px solid var(--nv-bd); }
.cv-kpis p { color: var(--gold-lt); }
.cv-kpis b { color: #fff; }
.cv-kpis b small { color: var(--gold-lt); }
.cv-kpis s { color: rgba(233, 236, 239, .6); }
.cv-kpis em { background: rgba(224, 198, 141, .12); border: 1px solid rgba(224, 198, 141, .35); color: var(--gold-lt); }
.cv-bars i:first-child { background: rgba(201, 198, 189, .45); }
.cv-bars i:last-child { background: var(--gold-grad); }

/* Thiết bị tự động sạc */
.charge .eyebrow { color: var(--gold-lt); }
.charge i { background: var(--gold-grad); color: var(--navy); box-shadow: 0 0 18px rgba(224, 198, 141, .3); }
.charge b { color: #fff; }
.charge span { color: rgba(233, 236, 239, .66); }
.charge li + li::before { color: var(--gold-lt); }

/* Cơ hội thị trường */
.opp-t { color: var(--gold-lt); }
.opp-nums b { color: #fff; }
.opp-nums b.gold { background: var(--gold-grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.opp-nums s { color: rgba(233, 236, 239, .55); }
.opp-nums i { color: var(--gold-lt); }
.opp article > p:last-child { color: rgba(233, 236, 239, .7); }
.opp article > p b { color: #f0d492; }
.opp-brands li { border-color: rgba(224, 198, 141, .35); color: #f3e3bd; background: rgba(224, 198, 141, .05); }

/* Lợi ích: 2 thẻ đầu đồng bộ với thẻ số liệu */
.benefit .benefit-num { border-color: var(--nv-bd); }
.benefit h3 { color: var(--gold-lt); }
.benefit .ticks li { color: rgba(233, 236, 239, .82); }
.benefit .ticks li::before { border-color: var(--gold-lt); }

/* Ảnh Chủ tịch bị giới hạn 65vh nên hẹp lại → ô trích dẫn rộng đúng bằng ảnh */
.about-visual { --fw: min(100%, calc(var(--img-max) * 4 / 4.2)); }
.about-visual .frame, .about-visual figcaption { width: var(--fw); }

/* ==========================================================================
   Chuỗi giá trị: dải thumbnail 7 công đoạn ngay dưới ảnh + thang giá trị đủ
   7 bước, không làm mờ bước nào (bước đang xem được nhấn vàng)
   ========================================================================== */
.vc-media { display: flex; flex-direction: column; gap: 12px; min-width: 0; }
.vc-media .vc-stage { min-height: 0; align-self: stretch; }
.vc-thumbs { display: grid; grid-template-columns: repeat(7, minmax(0, 1fr)); gap: 0; margin: 6px 0 0; position: relative; }
/* đường nối giữa các vòng tròn: nền nhạt + phần đã đi qua màu vàng */
.vc-thumbs::before, .vc-thumbs::after { display: block; top: 19px; }
.vc-thumbs button { gap: 9px; padding: 0 2px; }
.vc-thumbs span { width: 38px; height: 38px; font-size: 11.5px; }
.vc-thumbs p { font-size: 12px; line-height: 1.3; }
.vc-thumbs button:hover span { border-color: var(--gold); color: var(--gold); transform: scale(1.08); }
.vc-thumbs li.is-on span { background: var(--navy); border-color: var(--navy); color: var(--gold-lt); box-shadow: 0 0 0 4px rgba(224, 198, 141, .28); }
.vc-ladder ol { gap: 11px; }
.vc-ladder li { grid-template-columns: 22px 1fr auto; gap: 5px 10px; opacity: 1; cursor: pointer; font-size: 13px; }
.vc-ladder li > i { font: 600 10.5px/1.6 var(--f-title); font-style: normal; color: var(--gold-soft); }
.vc-ladder li span { color: var(--ink); }
.vc-ladder li b { font-size: 13px; color: var(--ink); text-align: right; }
.vc-ladder li::after { grid-column: 2 / -1; height: 6px; }
.vc-ladder li.is-cur > i, .vc-ladder li.is-cur b { color: var(--gold); }
.vc-ladder li.is-cur span { font-weight: 600; }
/* luôn hiển thị đủ 7 công đoạn: mọi thanh và mọi cánh logo đều vàng; bước đang xem chỉ được nhấn thêm */
.vc-ladder li::after, .vc-ladder li:not(.is-on)::after { background: var(--gold-grad); }
.vc-ladder li.is-cur::after { box-shadow: 0 0 10px rgba(224, 198, 141, .55); }
.mk-steps .b { fill: url(#mkGold); }
@media (max-width: 980px) {
  .vc-thumbs { grid-template-columns: repeat(7, minmax(78px, 1fr)); overflow-x: auto; padding: 6px 0; scrollbar-width: none; }   /* chừa chỗ cho vòng sáng của bước đang xem */
  .vc-thumbs::before, .vc-thumbs::after { display: none; }
}

/* ==========================================================================
   Header theo số đo Discovery Group (1440px): cao 88 → 72 khi cuộn; logo
   170px; menu Inter 11.5px chữ hoa (Trang chủ đậm); cờ ngôn ngữ + kính lúp
   bên phải; dòng tiện ích Inter 8px ở góc trên.
   ========================================================================== */
@font-face { font-family: "Inter"; src: url("../fonts/inter/inter-400.woff2") format("woff2"), url("../fonts/inter/inter-400.ttf") format("truetype"); font-weight: 400; font-style: normal; font-display: swap; }
@font-face { font-family: "Inter"; src: url("../fonts/inter/inter-500.woff2") format("woff2"), url("../fonts/inter/inter-500.ttf") format("truetype"); font-weight: 500; font-style: normal; font-display: swap; }
@font-face { font-family: "Inter"; src: url("../fonts/inter/inter-700.woff2") format("woff2"), url("../fonts/inter/inter-700.ttf") format("truetype"); font-weight: 700; font-style: normal; font-display: swap; }
:root { --hd-h: 88px; --f-nav: "Inter", "Plus Jakarta Sans", sans-serif; }
.hd { height: 88px; gap: 0; padding: 0 clamp(16px, 1.7vw, 24px) 0 clamp(20px, 7.9vw, 114px); color: #fff; }
.hd.is-solid { height: 72px; color: #30312e; }
.hd-logo { width: 170px; }
.hd-nav { margin-left: auto; gap: clamp(22px, 2.8vw, 40px); padding-top: 0; }
.hd-nav > a, .hd-dd-link { padding: 13px 0; font: 400 11.5px/1 var(--f-nav); letter-spacing: .12em; }
.hd-nav > .hd-home { font-weight: 700; letter-spacing: .085em; }
.hd-nav > a::after, .hd-dd-link::after { bottom: 6px; }
.hd-chev { width: 6px; height: 6px; border-right-width: 1.5px; border-bottom-width: 1.5px; }
.hd-dd-menu b { font-family: var(--f-nav); font-size: 12px; font-weight: 400; letter-spacing: .02em; }
.hd-tools { top: 8px; right: clamp(16px, 1.7vw, 25px); gap: 18px; }
.hd-tools a { font: 500 8.05px/1.2 var(--f-nav); letter-spacing: .09em; }
.hd.is-solid .hd-tools { top: 6px; }

/* cờ + mũi tên chọn ngôn ngữ, kính lúp */
.hd .language-dropdown { display: flex; align-items: center; color: inherit; }
.hd > .language { margin-left: clamp(18px, 2.5vw, 36px); }
.hd .language-current img { width: 20px; height: 14px; object-fit: cover; box-shadow: 0 1px 2px rgba(20, 24, 22, .08); }
.hd .language-current, .hd .language-toggle { border: 0; background: transparent; cursor: pointer; padding: 0; color: inherit; }
.hd .language-current { color: var(--gold-lt); }
.hd.is-solid .language-current { color: var(--gold); }
.hd .language-options button { border: 0; background: transparent; cursor: pointer; font: 500 11.5px var(--f-nav); }
.hd .language-options .language-code { font-size: 11.5px; }
.hd > .header-search-link { margin-left: 17px; }
.hd .search-link { position: relative; width: 30px; height: 30px; padding: 0; display: grid; place-items: center; color: inherit; background: transparent; border: 0; cursor: pointer; transition: color .25s; }
.hd .search-link > span { position: relative; width: 24px; height: 24px; display: block; }
.hd .search-link > span::before { content: ""; position: absolute; left: 3px; top: 3px; width: 10px; height: 10px; border: 1.5px solid currentColor; border-radius: 50%; }
.hd .search-link > span::after { content: ""; position: absolute; left: 14px; top: 14px; width: 7px; height: 1.5px; background: currentColor; transform: rotate(45deg); transform-origin: left center; }
.hd .search-link:hover { color: var(--gold-lt); }
.hd.is-solid .search-link:hover { color: var(--gold); }
.hd > .mobile-language { display: none; }
/* Google Dịch: ẩn thanh công cụ của Google, giữ trang không bị đẩy xuống */
body { top: 0 !important; }
.goog-te-banner-frame, .skiptranslate iframe, #goog-gt-tt, .goog-te-balloon-frame { display: none !important; }
#dg-google-translate { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

@media (max-width: 980px) {
  :root { --hd-h: 68px; }
  .hd, .hd.is-solid { height: 68px; padding: 0 16px 0 20px; }
  .hd-logo { width: 150px; }
  .hd > .language, .hd > .header-search-link { display: none; }
  .hd > .mobile-language { display: flex; margin-left: auto; gap: 2px; }
  .hd.open > .mobile-language { color: #30312e; }
  .hd-burger { margin-left: 10px; border: 1px solid rgba(183, 149, 82, .45); background: rgba(255, 253, 248, .08); }
  .hd.is-solid .hd-burger, .hd.open .hd-burger { background: #fffdf8; }
  .hd-nav { top: 80px; }
}
.hd .language-dropdown .language-toggle { color: inherit; }
.hd .language-dropdown .language-toggle:hover, .hd .language-dropdown .language-toggle:focus-visible { color: var(--gold-lt); background: rgba(183, 149, 82, .14); }
.hd.is-solid .language-dropdown .language-toggle:hover { color: var(--gold); }
@media (max-width: 980px) {
  /* menu mobile: giữ cỡ chữ lớn + khoảng đệm của panel (không ăn theo cỡ 11.5px desktop) */
  .hd-nav { padding: 62px 24px 30px; gap: 0; }
  .hd-nav > a, .hd-dd-link, .hd.is-solid .hd-nav > a, .hd.is-solid .hd-dd-link { padding: 13px 0; font: 500 16px/1.2 var(--f-nav); letter-spacing: .08em; }
  .hd-nav > .hd-home { font-weight: 700; }
  .hd-dd-menu b { font-size: 14px; }
}

/* ==========================================================================
   Trang con: đầu trang (ảnh nền + đường dẫn + mục lục), khối "Khám phá" ở
   trang chủ dẫn sang trang con, khối "Trang tiếp theo" cuối mỗi trang con
   ========================================================================== */
.page-hero { position: relative; isolation: isolate; overflow: hidden; min-height: min(78vh, 720px); display: flex; align-items: flex-end; padding: calc(var(--hd-h) + 56px) 0 clamp(40px, 6vh, 64px); background: var(--navy); color: #fff; }
.page-hero-media { position: absolute; inset: 0 0 0 auto; width: min(72%, 1300px); z-index: -3; }
.page-hero-media img { width: 100%; height: 112%; object-fit: cover; object-position: 60% 40%; }
.page-hero-veil { position: absolute; inset: 0; z-index: -2; background: linear-gradient(90deg, var(--navy) 26%, rgba(10, 20, 32, .82) 48%, rgba(10, 20, 32, .3) 78%, rgba(10, 20, 32, .45)), linear-gradient(0deg, rgba(10, 20, 32, .92) 0%, rgba(10, 20, 32, 0) 42%); }
.page-hero-mark { position: absolute; z-index: -1; right: calc(var(--shell) + 3vw); bottom: 14%; height: min(46vh, 420px); aspect-ratio: 306 / 480; opacity: .38; pointer-events: none; }
.page-hero-mark .mk { width: 100%; height: 100%; }
.page-hero-copy { position: relative; width: 100%; }
.crumb { display: flex; align-items: center; gap: 10px; margin-bottom: 26px; font: 500 11px/1.4 var(--f-nav, var(--f-title)); letter-spacing: .12em; text-transform: uppercase; color: rgba(255, 255, 255, .6); }
.crumb a { color: rgba(255, 255, 255, .78); transition: color .25s; }
.crumb a:hover { color: var(--gold-lt); }
.crumb i { font-style: normal; color: var(--gold-soft); }
.crumb span { color: var(--gold-lt); }
.page-hero .eyebrow { color: var(--gold-lt); }
.page-hero h1 { max-width: 15em; font-size: clamp(32px, 4.2vw, 62px); line-height: 1.06; letter-spacing: -.03em; font-weight: 600; }
.page-hero-lead { max-width: 620px; margin: 22px 0 0; font-size: clamp(14px, 1.1vw, 16px); color: rgba(255, 255, 255, .74); }
.page-toc { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 34px; }
.page-toc a { display: inline-flex; align-items: center; gap: 10px; padding: 10px 16px; border: 1px solid rgba(224, 198, 141, .32); background: rgba(10, 20, 32, .35); font: 500 12.5px/1 var(--f-body); color: rgba(255, 255, 255, .86); transition: border-color .3s, background .3s, color .3s; }
.page-toc a span { font: 600 10px/1 var(--f-title); letter-spacing: .1em; color: var(--gold-lt); }
.page-toc a:hover { border-color: var(--gold-lt); background: rgba(224, 198, 141, .12); color: #fff; }

.explore { background: var(--ivory); }
.explore-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 20px; }
.explore-card { --nv-bd: rgba(224, 198, 141, .3); position: relative; display: flex; flex-direction: column; overflow: hidden; border: 1px solid var(--nv-bd); background: linear-gradient(150deg, #15263d 0%, #0b1625 55%, #070e18 100%); color: rgba(233, 236, 239, .74); box-shadow: 0 18px 40px rgba(10, 20, 32, .16); transition: border-color .4s, box-shadow .4s, transform .6s var(--ease); }
.explore-card figure { margin: 0; aspect-ratio: 16 / 10; overflow: hidden; }
.explore-card img { width: 100%; height: 100%; object-fit: cover; opacity: .85; transition: transform 1s var(--ease), opacity .4s; }
.explore-card > div { position: relative; flex: 1; display: flex; flex-direction: column; padding: 24px 24px 22px; }
.explore-card > div::before { content: ""; position: absolute; left: 0; right: 0; top: 0; height: 1px; background: linear-gradient(90deg, transparent, var(--gold-lt), transparent); opacity: .55; }
.explore-card span { font: 600 11px/1 var(--f-title); letter-spacing: .14em; color: var(--gold-soft); }
.explore-card h3 { margin: 10px 0 8px; color: var(--gold-lt); }
.explore-card p { flex: 1; margin: 0; font-size: 13.5px; line-height: 1.6; }
.explore-card em { display: inline-flex; align-items: center; gap: 8px; margin-top: 18px; font: 600 11px/1 var(--f-title); font-style: normal; letter-spacing: .14em; text-transform: uppercase; color: var(--gold-lt); }
.explore-card em i { font-style: normal; transition: transform .4s var(--ease); }
.explore-card:hover { --nv-bd: rgba(224, 198, 141, .7); transform: translateY(-4px); box-shadow: 0 26px 52px rgba(10, 20, 32, .28), 0 0 26px rgba(224, 198, 141, .12); }
.explore-card:hover img { transform: scale(1.06); opacity: 1; }
.explore-card:hover em i { transform: translateX(5px); }

.page-next { padding: clamp(48px, 6vw, 80px) 0; background: var(--ivory); border-top: 1px solid var(--line-soft); }
.page-next-grid { display: grid; grid-template-columns: 1.4fr 1fr; gap: 20px; }
.page-next-link { position: relative; display: grid; gap: 6px; padding: 30px 72px 30px 32px; border: 1px solid rgba(224, 198, 141, .3); background: linear-gradient(150deg, #15263d 0%, #0b1625 55%, #070e18 100%); color: rgba(233, 236, 239, .7); transition: border-color .4s, transform .6s var(--ease), box-shadow .4s; }
.page-next-link span { font: 600 10.5px/1.3 var(--f-title); letter-spacing: .18em; text-transform: uppercase; color: var(--gold-soft); }
.page-next-link b { font: 600 clamp(22px, 2.2vw, 32px)/1.15 var(--f-title); color: #fff; }
.page-next-link em { font-style: normal; font-size: 13.5px; }
.page-next-link i { position: absolute; right: 30px; top: 50%; transform: translateY(-50%); font-style: normal; font-size: 26px; color: var(--gold-lt); transition: transform .4s var(--ease); }
.page-next-link.is-contact { background: var(--gold-grad); border-color: transparent; color: rgba(29, 22, 6, .78); }
.page-next-link.is-contact span, .page-next-link.is-contact i { color: #1d1606; }
.page-next-link.is-contact b { color: #1d1606; }
.page-next-link:hover { border-color: rgba(224, 198, 141, .7); transform: translateY(-3px); box-shadow: 0 22px 46px rgba(10, 20, 32, .22); }
.page-next-link:hover i { transform: translate(6px, -50%); }

@media (max-width: 1100px) { .explore-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 760px) {
  .page-hero { min-height: 0; padding-top: calc(var(--hd-h) + 44px); }
  .page-hero-media { width: 100%; opacity: .45; }
  .page-hero-mark { display: none; }
  .page-toc a { padding: 9px 12px; font-size: 12px; }
  .page-next-grid { grid-template-columns: 1fr; }
}
@media (max-width: 560px) { .explore-grid { grid-template-columns: 1fr; } }

/* ===== Trang chủ — "Về Discovery Siltron" bản rút gọn ===== */
.about-keys { list-style: none; margin: 32px 0 0; padding: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line-soft); }
.about-keys li { padding: 16px 16px 16px 0; font-size: 13px; line-height: 1.5; color: var(--mute); }
.about-keys li + li { padding-left: 16px; border-left: 1px solid var(--line-soft); }
.about-keys b { display: block; margin-bottom: 4px; font: 600 13.5px/1.35 var(--f-title); color: var(--gold); letter-spacing: .02em; }
.btn-line { margin-top: 30px; height: 48px; border: 1px solid var(--gold); color: var(--ink); background: transparent; transition: background .35s var(--ease), color .35s var(--ease); }
.btn-line:hover { background: var(--gold-grad); border-color: transparent; color: #1d1606; }
@media (max-width: 560px) {
  .about-keys { grid-template-columns: 1fr; }
  .about-keys li, .about-keys li + li { padding: 12px 0; border-left: 0; text-align: center; }
  .about-keys li + li { border-top: 1px solid var(--line-soft); }
}

/* ===== Sản phẩm chủ lực — thẻ navy + vàng gold (đồng bộ thẻ giải pháp / khám phá) ===== */
.prod {
  --nv-bd: rgba(224, 198, 141, .28);
  position: relative; isolation: isolate; overflow: hidden;
  background: linear-gradient(150deg, #15263d 0%, #0b1625 55%, #070e18 100%);
  border: 1px solid var(--nv-bd); color: rgba(233, 236, 239, .74);
  box-shadow: 0 18px 40px rgba(10, 20, 32, .16);
  transition: border-color .4s, box-shadow .4s, transform .6s var(--ease);
}
.prod::before {
  content: ""; position: absolute; inset: 0; z-index: -1; pointer-events: none;
  background-image: linear-gradient(rgba(224, 198, 141, .05) 1px, transparent 1px), linear-gradient(90deg, rgba(224, 198, 141, .05) 1px, transparent 1px);
  background-size: 22px 22px;
  -webkit-mask-image: linear-gradient(0deg, #000, transparent 70%); mask-image: linear-gradient(0deg, #000, transparent 70%);
}
.prod:hover { --nv-bd: rgba(224, 198, 141, .7); transform: translateY(-5px); box-shadow: 0 28px 56px rgba(10, 20, 32, .3), 0 0 28px rgba(224, 198, 141, .14); }
.prod figure { position: relative; aspect-ratio: 16 / 9; background: #0b1625; }
.prod.is-lead figure { aspect-ratio: 16 / 7.4; }
.prod figure::after { content: ""; position: absolute; inset: 0; pointer-events: none; background: linear-gradient(180deg, rgba(7, 14, 24, 0) 45%, rgba(11, 22, 37, .55) 80%, #0b1625 100%); }
.prod figure.is-dark { background: #000; }
.prod img { opacity: .92; transition: transform 1.2s var(--ease), opacity .4s; }
.prod:hover img { opacity: 1; }
.prod-tag { position: absolute; left: 16px; top: 16px; z-index: 2; padding: 7px 12px; border: 1px solid rgba(224, 198, 141, .55); border-radius: 999px; background: rgba(7, 14, 24, .62); backdrop-filter: blur(6px); font: 600 10px/1 var(--f-title); font-style: normal; letter-spacing: .16em; text-transform: uppercase; color: var(--gold-lt); }
.prod-body { flex: 1; display: flex; flex-direction: column; padding: 4px 26px 24px; }
.prod-body::before { content: ""; position: absolute; left: 0; right: 0; top: 0; height: 1px; background: linear-gradient(90deg, transparent, var(--gold-lt), transparent); opacity: .5; transition: opacity .4s; }
.prod:hover .prod-body::before { opacity: 1; }
.prod-head { display: flex; align-items: center; gap: 16px; margin: -26px 0 14px; position: relative; z-index: 2; }
.prod-head .ring { flex: none; width: 50px; height: 50px; margin: 0; font-size: 17px; font-weight: 400; border-color: var(--gold-lt); color: var(--gold-lt); background: #0d1a2b; box-shadow: inset 0 0 14px rgba(224, 198, 141, .14), 0 6px 16px rgba(0, 0, 0, .35); }
.prod-head .ring::after { inset: -5px; border-color: rgba(224, 198, 141, .5); }
.prod-head h3 { margin: 22px 0 0; padding: 0; color: #fff; font-size: clamp(18px, 1.35vw, 21px); line-height: 1.25; transition: color .4s; }
.prod:hover .prod-head h3 { color: var(--gold-lt); }
.prod-body p { flex: 1; margin: 0; font-size: 13.5px; line-height: 1.65; color: rgba(233, 236, 239, .7); }
.prod-step { display: flex; align-items: center; gap: 14px; margin-top: 20px; padding-top: 14px; border-top: 1px solid rgba(224, 198, 141, .16); }
.prod-step span { flex: none; font: 600 10px/1 var(--f-title); letter-spacing: .16em; text-transform: uppercase; color: var(--gold-soft); }
.prod-step small { font-size: inherit; color: rgba(233, 236, 239, .38); }
.prod-step b { flex: 1; display: grid; grid-template-columns: repeat(6, 1fr); gap: 4px; }
.prod-step b i { height: 3px; border-radius: 2px; background: rgba(224, 198, 141, .14); }
.prod-step b i.on { background: var(--gold-grad); }
.prod-step b i.on:last-of-type, .prod-step b i.on:not(:has(+ .on)) { box-shadow: 0 0 8px rgba(240, 212, 146, .6); }
.prod.is-lead .prod-body { padding-inline: 30px; }
.prod.is-lead .prod-head h3 { font-size: clamp(20px, 1.6vw, 24px); }
.prod.is-lead .prod-body p { font-size: 14.5px; max-width: 54ch; }
@media (max-width: 1100px) { .prod.is-lead figure { aspect-ratio: 16 / 9; } }
@media (max-width: 560px) {
  .prod-body, .prod.is-lead .prod-body { padding: 4px 20px 20px; }
  .prod-head .ring { width: 46px; height: 46px; font-size: 16px; }
}
.prod-body :is(.ring, .prod-step span) { position: relative; right: auto; top: auto; }
.prod-body .ring { display: grid; place-items: center; letter-spacing: 0; }
.prod figure { -webkit-mask-image: linear-gradient(180deg, #000 58%, rgba(0, 0, 0, .35) 86%, transparent); mask-image: linear-gradient(180deg, #000 58%, rgba(0, 0, 0, .35) 86%, transparent); }
.prod figure.is-dark { background: transparent; }
.prod-body::before { opacity: 0; }
.prod:hover .prod-body::before { opacity: .6; }
.prod figure.is-dark { background: #000; }
/* ảnh sản phẩm rõ hơn: bỏ lớp phủ tối, chỉ mờ mép dưới */
.prod figure::after { background: linear-gradient(115deg, transparent 34%, rgba(255, 244, 214, .26) 50%, transparent 66%); }
.prod figure { -webkit-mask-image: linear-gradient(180deg, #000 80%, rgba(0, 0, 0, .55) 92%, transparent); mask-image: linear-gradient(180deg, #000 80%, rgba(0, 0, 0, .55) 92%, transparent); }
.prod img { opacity: 1; filter: saturate(1.08) contrast(1.04); }
.prod-tag { background: rgba(7, 14, 24, .5); }

/* ===== Sản phẩm — khung thể hiện ĐỦ ảnh (không cắt): ảnh contain + nền mờ của chính ảnh ===== */
.prod figure { -webkit-mask-image: none; mask-image: none; isolation: isolate; }
.prod.is-lead figure { aspect-ratio: 16 / 9; }
.prod:not(.is-lead) figure { aspect-ratio: 4 / 3; }
.prod figure::before { content: ""; position: absolute; inset: -24px; z-index: -1; background: var(--src) center / cover no-repeat; filter: blur(18px) brightness(.55) saturate(1.1); transform: translateZ(0); }
.prod figure.is-dark::before { display: none; }
.prod img, .prod figure.is-dark img { object-fit: contain; padding: 0; }
.prod figure + .prod-body::before { opacity: .45; }
@media (max-width: 560px) {
  .prod figure, .prod.is-lead figure, .prod:not(.is-lead) figure { aspect-ratio: var(--ar); }
}

/* ===== Ảnh Chủ tịch — huy hiệu wafer (vòng chữ vàng xoay + biểu tượng Discovery) ===== */
.frame-wrap { position: relative; width: var(--fw, 100%); }
.about-visual .frame-wrap .frame { width: 100%; }
.wafer-badge {
  position: absolute; left: -44px; bottom: -34px; z-index: 3; width: 116px; height: 116px; border-radius: 50%;
  background: radial-gradient(circle at 34% 28%, #1d3354 0%, #0d1a2b 58%, #070e18 100%);
  border: 1px solid rgba(224, 198, 141, .65);
  box-shadow: 0 0 0 6px var(--ivory), 0 16px 34px rgba(10, 20, 32, .35);
}
.wafer-badge::before {
  content: ""; position: absolute; inset: 24px; border-radius: 50%;
  background-image: linear-gradient(rgba(224, 198, 141, .14) 1px, transparent 1px), linear-gradient(90deg, rgba(224, 198, 141, .14) 1px, transparent 1px);
  background-size: 7px 7px; background-position: center;
}
.wb-text { position: absolute; inset: 0; width: 100%; height: 100%; overflow: visible; animation: spin 36s linear infinite; }
.wb-text text { font: 600 8.6px var(--f-title); letter-spacing: .14em; fill: var(--gold-lt); }
.wb-core { position: absolute; inset: 27px; display: grid; place-items: center; border-radius: 50%; border: 1px dashed rgba(224, 198, 141, .5); background: radial-gradient(circle, rgba(13, 26, 43, .2), rgba(13, 26, 43, .85) 70%); }
.wb-core svg { width: 24px; height: auto; fill: url(#mkGold); filter: drop-shadow(0 0 6px rgba(240, 212, 146, .35)); }
@media (prefers-reduced-motion: reduce) { html:not(.ds-motion-forced) .wb-text { animation: none; } }
@media (max-width: 980px) { .wafer-badge { left: -16px; } }
@media (max-width: 560px) { .wafer-badge { width: 92px; height: 92px; left: -8px; bottom: -28px; } .wafer-badge::before { inset: 19px; } .wb-core { inset: 21px; } .wb-core svg { width: 19px; } }
@media (min-width: 981px) { .wafer-badge { width: 130px; height: 130px; left: -50px; bottom: -38px; } .wafer-badge::before { inset: 27px; } .wb-core { inset: 30px; } .wb-core svg { width: 27px; } }
.wafer-badge { box-shadow: 0 16px 34px rgba(10, 20, 32, .35); }

/* ===== Nút bấm đồng bộ toàn site: nền xanh navy, viền + chữ vàng gold, không mũi tên ===== */
:is(.btn, .btn-gold, .btn-ghost, .btn-line, .contact-form button, .lock button) {
  display: inline-flex; align-items: center; justify-content: center; gap: 0;
  height: 52px; padding: 0 30px; border-radius: 999px;
  border: 1px solid rgba(224, 198, 141, .6);
  background: linear-gradient(150deg, #15263d 0%, #0b1625 60%, #070e18 100%);
  color: var(--gold-lt);
  font: 600 12px/1 var(--f-title); letter-spacing: .14em; text-transform: uppercase;
  box-shadow: 0 12px 28px rgba(10, 20, 32, .22), inset 0 1px 0 rgba(224, 198, 141, .18);
  backdrop-filter: none; cursor: pointer;
  transition: border-color .35s, color .35s, box-shadow .35s, transform .35s var(--ease);
}
:is(.btn, .btn-gold, .btn-ghost, .btn-line, .contact-form button, .lock button):hover {
  border-color: var(--gold-lt); color: #f0d492; background: linear-gradient(150deg, #1a2e4a 0%, #0d1a2b 60%, #08111d 100%);
  transform: translateY(-2px);
  box-shadow: 0 18px 38px rgba(10, 20, 32, .3), 0 0 22px rgba(224, 198, 141, .18), inset 0 1px 0 rgba(224, 198, 141, .3);
}
:is(.btn, .contact-form button) span[aria-hidden="true"] { display: none; }
.lock button { height: 46px; padding: 0 24px; border-radius: 0; }
@media (max-width: 560px) { :is(.btn, .btn-gold, .btn-ghost, .btn-line, .contact-form button) { height: 48px; padding: 0 22px; } }
/* Band: logo căn giữa phần khung phía trên dải chữ chạy (không dùng transform để GSAP không làm lệch) */
.band-mark { top: 0; bottom: clamp(80px, 7vw, 104px); margin: auto 0; transform: none; }

/* ===== Khám phá: nút "Xem chi tiết" — viên thuốc căn giữa, ánh sáng chạy quanh viền ===== */
.explore-card em {
  position: relative; isolation: isolate; align-self: center; justify-content: center;
  margin-top: 22px; height: 44px; padding: 0 28px; border-radius: 999px;
  border: 1px solid rgba(224, 198, 141, .4);
  background: linear-gradient(150deg, #15263d 0%, #0b1625 60%, #070e18 100%);
  box-shadow: inset 0 1px 0 rgba(224, 198, 141, .14), 0 10px 22px rgba(0, 0, 0, .28);
  color: var(--gold-lt); transition: border-color .4s, color .4s, box-shadow .4s;
}
.explore-card em::after {
  content: ""; position: absolute; inset: -1.5px; padding: 1.5px; border-radius: inherit; pointer-events: none;
  background: conic-gradient(from var(--ba), transparent 0 60%, rgba(255, 244, 208, 0) 64%, #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, .85));
  animation: tcBorder 3.2s linear infinite;
}
.explore-card:nth-child(2) em::after { animation-delay: -.8s; }
.explore-card:nth-child(3) em::after { animation-delay: -1.6s; }
.explore-card:nth-child(4) em::after { animation-delay: -2.4s; }
.explore-card em i { display: none; }
.explore-card:hover em { border-color: var(--gold-lt); color: #f0d492; box-shadow: inset 0 1px 0 rgba(224, 198, 141, .28), 0 0 22px rgba(224, 198, 141, .22); }
.explore-card:hover em::after { animation-duration: 1.6s; }
@media (prefers-reduced-motion: reduce) { html:not(.ds-motion-forced) .explore-card em::after { animation: none; --ba: 200deg; } }
.person img { display: block; margin: 0 auto 24px; }   /* ảnh chân dung căn giữa thẻ */

/* ===== Splash intro mới: cát → biểu tượng → mạch điện; ra bằng 7 dải tách (0,3s) — assets/js/splash.js ===== */
.splash.is-out { pointer-events: none; background: transparent !important; }
.splash:not(.is-run) *, .splash:not(.is-run) *::after { animation-play-state: paused !important; }
.spx-strips { position: absolute; inset: 0; display: grid; grid-template-rows: repeat(7, 1fr); }
.spx-strips i { position: relative; margin-top: -1px; will-change: transform;
  background:
    linear-gradient(rgba(224, 198, 141, .055) 1px, transparent 1px) 0 calc(var(--i) * var(--sh, 14.2857vh) * -1) / var(--t, 80px) var(--t, 80px),
    linear-gradient(90deg, rgba(224, 198, 141, .055) 1px, transparent 1px) 0 0 / var(--t, 80px) var(--t, 80px),
    #0b1625; }
.spx-strips i:first-child { margin-top: 0; }
.spx-strips i::after { content: ""; position: absolute; top: 0; bottom: 0; width: 2px; background: linear-gradient(transparent, #fff6dc 20%, #f0d492 80%, transparent); box-shadow: 0 0 14px 2px rgba(240, 212, 146, .7); opacity: 0; }
.spx-strips i:nth-child(odd)::after { right: 0; }
.spx-strips i:nth-child(even)::after { left: 0; }
.spx-cv, .spx-traces { position: absolute; inset: 0; z-index: 1; width: 100%; height: 100%; pointer-events: none; }
.spx-traces { overflow: visible; }
.spx-traces path { fill: none; stroke: rgba(224, 198, 141, .55); stroke-width: 1; stroke-dasharray: 1; stroke-dashoffset: 1; animation: spxDraw 1s var(--ease-draw) both; }
.spx-traces circle { fill: #f0d492; filter: drop-shadow(0 0 4px rgba(240, 212, 146, .9)); opacity: 0; animation: fadeIn .3s ease both; }
@keyframes spxDraw { to { stroke-dashoffset: 0; } }
.spx-copy { position: absolute; left: 0; right: 0; top: var(--cy, 64%); z-index: 2; display: flex; flex-direction: column; align-items: center; }
.spx-copy .splash-word { margin: 0; }
.spx-copy .splash-word b { animation-delay: 1.75s; }
.spx-copy .splash-word span { animation-delay: 1.93s; }
.spx-copy .splash-tag { margin-top: 18px; animation-delay: 2.25s; }
/* ra: nội dung tắt nhanh, 7 dải trượt so le — tổng 0,3s */
.splash.is-out :is(.spx-cv, .spx-traces, .spx-copy) { opacity: 0; transition: opacity .24s linear; }
.splash.is-out .spx-strips i { transform: translateX(calc(var(--s) * 101%)); transition: transform .5s var(--ease-io); transition-delay: calc(var(--k) * .033s); }   /* 0,5s + so le tối đa 3 × 0,033s ≈ 0,6s */
.splash.is-out .spx-strips i::after { opacity: 1; transition: opacity .1s linear; }

/* ===== Chuyển trang: hai cánh cửa khép vào giữa có logo → tách ra (assets/js/splash.js · DSPage) ===== */
/* Nền cửa = lưới die + quầng sáng; lưới neo tại đường giữa nên hai cánh ghép liền mạch. */
html.pt-in body::after { content: ""; position: fixed; inset: 0; z-index: 2990;   /* che khung hình đầu: y hệt cửa đang đóng + logo */
  background:
    url(/assets/img/logo-siltron-light-480.webp) 50% 50% / clamp(200px, 19vw, 290px) auto no-repeat,
    linear-gradient(rgba(224, 198, 141, .055) 1px, transparent 1px) 0 0 / var(--t, 80px) var(--t, 80px),
    linear-gradient(90deg, rgba(224, 198, 141, .055) 1px, transparent 1px) 50vw 0 / var(--t, 80px) var(--t, 80px),
    linear-gradient(#0b1625, #0b1625); }
html.pt-in, html.pt-leaving { overflow: hidden; }
.pt { position: fixed; inset: 0; z-index: 3000; pointer-events: none; }
html.pt-leaving .pt { pointer-events: auto; }
.pt-l, .pt-r { position: absolute; top: 0; bottom: 0; width: 50%; will-change: transform; transition: transform .8s var(--ease-io);
  background-image:
    linear-gradient(rgba(224, 198, 141, .055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(224, 198, 141, .055) 1px, transparent 1px),
    linear-gradient(#0b1625, #0b1625);
  background-size: var(--t, 80px) var(--t, 80px), var(--t, 80px) var(--t, 80px), 100vw 100%;
  background-repeat: repeat, repeat, no-repeat; }
.pt-l { left: 0; background-position: 0 0, right 0 top 0, left 0 top 0; }
.pt-r { right: 0; background-position: 0 0, left 0 top 0, right 0 top 0; }
/* mép trong của mỗi cánh: vệt sáng vàng, loé lên khi cửa đang chạy */
.pt-l::after, .pt-r::after { content: ""; position: absolute; top: 0; bottom: 0; width: 2px; opacity: 0;
  background: linear-gradient(transparent, #fff6dc 18%, #f0d492 82%, transparent); box-shadow: 0 0 16px 2px rgba(240, 212, 146, .65); }
.pt-l::after { right: 0; }
.pt-r::after { left: 0; }
.pt:not(.is-still) :is(.pt-l, .pt-r)::after { animation: ptSeam .8s linear both; }
@keyframes ptSeam { 0% { opacity: 0; } 15%, 75% { opacity: 1; } 100% { opacity: 0; } }
.pt-logo { position: absolute; left: 50%; top: 50%; z-index: 2; width: clamp(200px, 19vw, 290px); transform: translate(-50%, -50%);
  transition: opacity .32s ease .48s, transform .8s var(--ease); }   /* logo hiện đúng lúc hai cánh vừa khép */
.pt-logo img { display: block; width: 100%; height: auto; }
/* trạng thái: is-off = cửa mở hẳn (trước khi khép) · (không lớp) = đang khép · is-still = đóng kín · is-open = tách ra */
.pt.is-off .pt-l, .pt.is-open .pt-l { transform: translateX(-100%); }
.pt.is-off .pt-r, .pt.is-open .pt-r { transform: translateX(100%); }
.pt.is-off :is(.pt-l, .pt-r) { transition: none; }
.pt.is-off .pt-logo { opacity: 0; transform: translate(-50%, -50%) scale(.9); transition: none; }
.pt.is-open .pt-logo { opacity: 0; transform: translate(-50%, -50%) scale(1.06); transition: opacity .3s ease, transform .66s var(--ease); }

/* ===== Phản hồi chạm trên màn hình cảm ứng (không có hover): nhấn là thu nhẹ, nhả là bật lại ===== */
@media (hover: none) {
  a, button, [role="button"], summary, label { -webkit-tap-highlight-color: transparent; touch-action: manipulation; }
  :is(.btn, .contact-form button, .lock button, .explore-card em, .contact-dock a, .back-to-top, .hd-burger,
      .vc-thumbs button, .page-toc a, .crumb a, .hd-nav a, .hd-dd > button, .language-toggle, .language-current, .search-link,
      .mobile-bottom-item, .mobile-bottom-brand, .lb-prev, .lb-next, .lb-x) {
    transition: transform .14s var(--ease), opacity .14s; }
  :is(.btn, .contact-form button, .lock button, .contact-dock a, .back-to-top, .hd-burger, .vc-thumbs button,
      .page-toc a, .language-toggle, .language-current, .search-link, .mobile-bottom-item, .mobile-bottom-brand,
      .lb-prev, .lb-next, .lb-x):active { transform: scale(.94); }
  :is(.hd-nav a, .crumb a):active { opacity: .6; }
  :is(.explore-card, .page-next-link, .gal-grid button, .vc-ladder li):active { transform: scale(.985); transition: transform .14s var(--ease); }
  .explore-card:active em { border-color: var(--gold-lt); color: #f0d492; }
}

/* Hero vừa khít đúng 1 màn hình (desktop + mobile) — khoảng cách co theo chiều cao màn hình */
.hero { height: 100vh; height: 100svh; min-height: 0; padding-top: calc(var(--hd-h) + clamp(12px, 3vh, 40px)); }
.hero-copy { flex: 1 1 auto; min-height: 0; display: flex; flex-direction: column; justify-content: flex-end; padding-bottom: clamp(18px, 4vh, 64px); }
.hero-stats { margin-bottom: clamp(16px, 4vh, 56px); }
@media (min-width: 641px) and (max-height: 820px) {
  .hero h1 { font-size: clamp(30px, min(5vw, 8.2vh), 76px); }
  .hero-kicker { margin-bottom: 1.8vh; }
  .hero-lead { margin-top: 2.4vh; }
  .hero-actions { margin-top: 3vh; }
  .hero-stats article { padding: 2vh 26px; }
}
@media (max-width: 640px) {
  .hero-kicker { margin-bottom: 12px; font-size: 10px; letter-spacing: .14em; }
  .hero h1 { font-size: clamp(26px, min(8.2vw, 5vh), 40px); }
  .hero-lead { margin-top: 1.6vh; font-size: 13.5px; line-height: 1.55; }
  .hero-copy { justify-content: center; }   /* khối chữ nằm giữa khoảng trống phía trên số liệu, không dồn đáy */
  .hero-actions { margin-top: 2.6vh; gap: 10px; flex-direction: column; }
  .hero-actions .btn { width: 100%; height: 46px; padding: 0 16px; font-size: 11px; letter-spacing: .12em; }   /* 2 nút xếp dọc, rộng bằng nhau */
  .hero-stats article { padding: 1.4vh 14px; }
  .hero-stats b { font-size: 22px; }
  .hero-stats s { margin-top: 4px; }
  .hero-stats p { margin-top: 3px; font-size: 11.5px; line-height: 1.35; }
}
@media (max-width: 640px) and (max-height: 720px) {
  .hero-lead { display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
}
@media (max-width: 640px) and (max-height: 600px) { .hero-lead { display: none; } }
/* Màn hình quá thấp (điện thoại xoay ngang): trả về chiều cao tự nhiên để không cắt nội dung */
@media (max-height: 560px) { .hero { height: auto; min-height: 100svh; } }

/* Mobile: tiêu đề h2 bỏ ngắt dòng cứng, tự cân dòng → gọn 2 dòng */
@media (max-width: 640px) {
  main h2 br { display: none; }
  main h2 { font-size: clamp(23px, 6.6vw, 28px); text-wrap: balance; }
}

/* Mobile: Hành trình giá trị — toàn bộ chữ căn giữa trang */
@media (max-width: 760px) {
  .sx-copy { align-items: center; text-align: center; }
  .sx-copy > * { width: 100%; }
  .sx-copy .eyebrow { justify-content: center; }
  .sx-copy .eyebrow::after { content: ""; width: 34px; height: 1px; background: currentColor; opacity: .7; }
  .sx-copy h2 { max-width: none; font-size: 24px; }
  .sx-steps { min-height: 132px; }
  .sx-step { display: flex; flex-wrap: wrap; justify-content: center; align-items: baseline; gap: 4px 10px; }   /* số + tên bước chung 1 hàng */
  .sx-step i { font-size: 20px; }
  .sx-step :is(p, s) { flex-basis: 100%; }
  .sx-meter { grid-template-columns: 1fr 1fr; padding: 12px 0 0; text-align: center; }
  .sx-mult { text-align: center; }
  .sx-dots { left: 50%; right: auto; transform: translateX(-50%); }
  .sx.is-ctrl .sx-ctrl { position: absolute; top: 79px; left: 50%; width: 210px; margin: 0; transform: translateX(-50%); justify-content: space-between; }   /* 2 nút kẹp hàng chấm, không đẩy nội dung */
  .sx.is-ctrl .sx-ctrl span { display: none; }
}

/* Mobile/tablet: 05 tiêu chí — đường nối thẳng từ chân giữa chip xuống, chân cắm ở mép trên giữa thẻ */
@media (max-width: 980px) {
  .tc3-board { padding-left: 0; }
  .tc3-chip { margin: 0 0 26px; }
  .tc3-card[data-side] .tc3-conn { top: -9px; left: 50%; right: auto; flex-direction: row; transform: translateX(-50%); }
  .tc3-card[data-side] .tc3-conn i { width: 3px; height: 8px; background: linear-gradient(#9c7535, #f0d492 50%, #9c7535); }
}

/* Mobile: các trường được chỉ định căn giữa */
@media (max-width: 640px) {
  .contact-form button { display: flex; margin-inline: auto; justify-content: center; }
  .ft-top { align-items: center; }
  .ft-top .ft-claim { text-align: center; }
  .person h3, .person .role { text-align: center; }
  .explore-card span, .explore-card h3 { display: block; text-align: center; }
  .about-visual figcaption { text-align: center; }
  .about-copy .about-more { display: flex; width: fit-content; margin-inline: auto; }   /* 2 class: thắng :is(.btn, .contact-form button) */
}

/* Thẻ sản phẩm: tiêu đề cách mép ảnh rộng hơn (vòng số vẫn đè lên mép ảnh như cũ) */
.prod-head { align-items: flex-start; }
.prod-head h3 { margin-top: 46px; }

/* Nút "Hợp tác đầu tư" ở banner: vệt sáng quét + vòng toả nhẹ, lặp mỗi 2 giây */
.hero-actions .btn-ghost { position: relative; overflow: hidden; isolation: isolate; animation: ctaPing 2s ease-out infinite; }
.hero-actions .btn-ghost::after { content: ""; position: absolute; top: -10%; bottom: -10%; left: 0; width: 38%; z-index: -1; pointer-events: none;
  background: linear-gradient(100deg, transparent, rgba(255, 238, 196, .42), transparent); transform: translateX(-140%) skewX(-20deg); animation: ctaShine 2s ease-in-out infinite; }
@keyframes ctaShine { 0% { transform: translateX(-140%) skewX(-20deg); } 55%, 100% { transform: translateX(320%) skewX(-20deg); } }
@keyframes ctaPing {
  0% { border-color: #f0d492; box-shadow: 0 12px 28px rgba(10, 20, 32, .22), 0 0 0 0 rgba(224, 198, 141, .55); }
  70% { border-color: rgba(224, 198, 141, .6); box-shadow: 0 12px 28px rgba(10, 20, 32, .22), 0 0 0 12px rgba(224, 198, 141, 0); }
  100% { border-color: rgba(224, 198, 141, .6); box-shadow: 0 12px 28px rgba(10, 20, 32, .22), 0 0 0 0 rgba(224, 198, 141, 0); }
}

/* Đồng bộ toàn site: mọi nút (navy viền vàng) dùng chung hiệu ứng của nút "Hợp tác đầu tư" —
   vệt sáng quét ngang + vòng sáng toả nhẹ, lặp mỗi 2 giây (section ngoài màn hình tự tạm dừng). */
:is(.btn, .contact-form button) { position: relative; overflow: hidden; isolation: isolate; animation: ctaPing 2s ease-out infinite; }
:is(.btn, .contact-form button)::after { content: ""; position: absolute; top: -10%; bottom: -10%; left: 0; width: 38%; z-index: -1; pointer-events: none;
  background: linear-gradient(100deg, transparent, rgba(255, 238, 196, .42), transparent); transform: translateX(-140%) skewX(-20deg); animation: ctaShine 2s ease-in-out infinite; }
/* hai nút đứng cạnh nhau thì lệch nhịp nửa chu kỳ, không loé cùng lúc */
.btn + .btn, .btn + .btn::after { animation-delay: -1s; }

/* Rê chuột vào nút: tắt nhịp toả, nền vàng gold lấp từ trái sang, chữ chuyển navy, vệt sáng quét nhanh một lượt;
   rời chuột: nền vàng rút về bên phải rồi nhịp toả chạy lại. Chỉ cho thiết bị có chuột. */
:is(.btn, .contact-form button)::before { content: ""; position: absolute; inset: 0; z-index: -1; border-radius: inherit; pointer-events: none;
  background: var(--gold-grad); transform: scaleX(0); transform-origin: right center; transition: transform .45s var(--ease-io); }
:is(.btn, .contact-form button) { transition: color .3s ease, border-color .3s ease, box-shadow .35s ease, transform .35s var(--ease); }
@media (hover: hover) and (pointer: fine) {
  :is(.btn, .contact-form button):hover { animation: none; color: #1d1606; border-color: #f0d492;
    box-shadow: 0 16px 34px rgba(195, 154, 68, .36), 0 0 0 4px rgba(224, 198, 141, .16); }
  :is(.btn, .contact-form button):hover::before { transform: scaleX(1); transform-origin: left center; }
  :is(.btn, .contact-form button):hover::after { z-index: 0; animation: ctaShineHover .8s ease-out .12s both; }
}
@keyframes ctaShineHover { from { transform: translateX(-140%) skewX(-20deg); } to { transform: translateX(320%) skewX(-20deg); } }
:is(.btn, .contact-form button):focus-visible { outline: 2px solid #f0d492; outline-offset: 3px; }

/* 05 tiêu chí: cả 5 icon luôn ở dạng vàng gold (ô vàng, nét navy); thẻ đang sáng chỉ thêm quầng sáng */
.tc3-ico { background: var(--gold-grad); border-color: transparent; color: var(--navy); box-shadow: 0 4px 12px rgba(0, 0, 0, .3), inset 0 1px 0 rgba(255, 246, 220, .55); }
.tc3-ico svg { stroke-width: 1.7; }
.tc3-card.is-on .tc3-ico { box-shadow: 0 0 18px rgba(240, 212, 146, .55), inset 0 1px 0 rgba(255, 246, 220, .6); }

/* Khám phá: thẻ KHÔNG phóng / nhấc khi rê chuột (chỉ sáng viền); nút "Xem chi tiết" rê vào thì lấp vàng gold */
.explore-card:hover { transform: none; }
.explore-card:hover img { transform: none; }
.explore-card em::before { content: ""; position: absolute; inset: 0; z-index: -1; border-radius: inherit; pointer-events: none;
  background: var(--gold-grad); transform: scaleX(0); transform-origin: right center; transition: transform .45s var(--ease-io); }
@media (hover: hover) and (pointer: fine) {
  .explore-card em:hover { color: #1d1606; border-color: #f0d492; box-shadow: 0 12px 28px rgba(195, 154, 68, .34), 0 0 0 4px rgba(224, 198, 141, .14); }
  .explore-card em:hover::before { transform: scaleX(1); transform-origin: left center; }
}

/* Footer: đường kẻ vàng dưới logo vẽ từ trái sang khi footer xuất hiện (motion.js · --ftl 0→1) */
.ft-top { position: relative; border-bottom-color: transparent; }
.ft-top::after { content: ""; position: absolute; left: 0; right: 0; bottom: -1px; height: 1px; background: linear-gradient(90deg, rgba(224, 198, 141, .55), rgba(224, 198, 141, .22) 60%, rgba(224, 198, 141, .1));
  transform: scaleX(var(--ftl, 1)); transform-origin: left center; }

/* Hero: biểu tượng nét mảnh hiện rõ đủ 7 cánh trên nền wafer sáng (đậm nét + viền tối mờ tách nền) */
.hero-mark { opacity: .9; filter: drop-shadow(0 0 1px rgba(5, 11, 20, .9)) drop-shadow(0 0 8px rgba(5, 11, 20, .55)); }
.hero-mark .b { stroke: #f0d492; stroke-width: 1.6; }
@media (max-width: 960px) { .hero-mark { opacity: .6; } }

/* Hành trình giá trị: giãn nhịp các thành phần khối chữ */
@media (min-width: 761px) {
  .sx-copy > * { max-width: 440px; }
  .sx-copy .eyebrow { margin-bottom: 22px; }
  .sx-copy h2 { margin-bottom: clamp(36px, 5.5vh, 56px); line-height: 1.12; }
  .sx-steps { min-height: 178px; }
  .sx-step { grid-template-columns: 56px 1fr; column-gap: 18px; }
  .sx-step i { font-size: 34px; }
  .sx-step b { margin-bottom: 10px; }
  .sx-step p { line-height: 1.7; }
  .sx-step s { margin-top: 16px; }
  .sx.is-ctrl .sx-ctrl { margin-top: 24px; }
  .sx-meter { margin-top: clamp(28px, 4.5vh, 48px); padding-top: 28px; row-gap: 18px; }
  .sx-meter small { margin-bottom: 10px; }
}

/* Khám phá: hover "Xem chi tiết" mượt — lớp vàng lộ dần bằng clip-path (giữ nguyên bo tròn viên thuốc,
   không bị bóp méo như scaleX), cùng một nhịp/easing cho màu chữ, viền, bóng; vệt sáng viền không đổi tốc
   khi rê (đổi animation-duration giữa chừng làm vệt sáng giật). */
.explore-card em { transition: color .55s var(--ease), border-color .55s var(--ease), box-shadow .55s var(--ease); }
.explore-card em::before { transform: none; clip-path: inset(0 100% 0 0 round 999px); transition: clip-path .55s var(--ease); will-change: clip-path; }
.explore-card:hover em { color: var(--gold-lt); border-color: rgba(224, 198, 141, .62); box-shadow: inset 0 1px 0 rgba(224, 198, 141, .2), 0 10px 22px rgba(0, 0, 0, .28); }
.explore-card:hover em::after { animation-duration: 3.2s; }
.explore-card em::after { transition: opacity .55s var(--ease); }
@media (hover: hover) and (pointer: fine) {
  .explore-card em:hover { color: #1d1606; border-color: #f0d492; box-shadow: 0 12px 28px rgba(195, 154, 68, .3), 0 0 0 4px rgba(224, 198, 141, .12); }
  .explore-card em:hover::before { transform: none; clip-path: inset(0 0 0 0 round 999px); }
  .explore-card em:hover::after { opacity: .55; }
}
/* Hành trình: nhãn "Giá trị ước tính" và "Gia tăng" cùng một hàng, hai con số cùng chân */
@media (min-width: 761px) {
  .sx-meter { align-items: start; }
  .sx-meter > div:first-child b { display: inline-block; }
  .sx-mult b { display: inline-block; line-height: clamp(28px, 2.8vw, 40px); }
}

/* Hành trình (desktop): 2 nút chuyển bước đặt trên & dưới cột chấm bên phải, mũi tên lên / xuống */
@media (min-width: 761px) {
  .sx.is-ctrl .sx-ctrl { position: absolute; z-index: 3; top: 50%; right: calc(var(--shell) - 13px); height: 212px; margin: 0; flex-direction: column; justify-content: space-between; transform: translateY(-50%); }
  .sx.is-ctrl .sx-ctrl span { display: none; }
  .sx-ctrl .sx-nav svg { transform: rotate(90deg); }
}

/* Mobile: tiêu đề "Về Discovery Siltron" căn giữa — dòng 1 "Ngành bán dẫn —", dòng 2 "làm chủ hay làm thuê?" */
@media (max-width: 640px) {
  .about-short .eyebrow { justify-content: center; }
  .about-short .eyebrow::after { content: ""; width: 34px; height: 1px; background: currentColor; opacity: .7; }
  .about-short h2 { text-align: center; font-size: clamp(21px, 6.4vw, 28px); text-wrap: nowrap; }
  .about-short h2 br { display: inline; }
}

/* Mobile: Hành trình giá trị vừa khít 1 màn hình — khối chữ neo trên thanh menu đáy,
   hàng chấm (và 2 nút ở chế độ vuốt) nằm ngay trên tiêu đề; --sx-ct = mép trên tiêu đề (forge.js) */
@media (max-width: 760px) {
  .sx-copy { padding-bottom: 24px; }
  .sx-dots { top: calc(var(--sx-ct, 132px) - 40px); }
  .sx.is-ctrl .sx-ctrl { top: calc(var(--sx-ct, 132px) - 53px); }
}
@media (max-width: 620px) {
  .sx-copy { padding-bottom: calc(64px + env(safe-area-inset-bottom) + 18px); }
  .sx-meter { padding-right: 0; }
}

/* Khám phá: đã bỏ số thứ tự 01–04 trên thẻ (index.html) — tiêu đề lên sát mép trên */
.explore-card h3 { margin-top: 0; }

/* Mobile: tiêu đề "Khám phá" & "Đội ngũ" căn giữa, giữ ngắt dòng như desktop */
@media (max-width: 640px) {
  :is(.explore, .team, .gallery) .sec-head { text-align: center; margin-inline: auto; }
  :is(.explore, .team, .gallery) .sec-head .eyebrow { justify-content: center; }
  :is(.explore, .team, .gallery) .sec-head .eyebrow::after { content: ""; width: 34px; height: 1px; background: currentColor; opacity: .7; }
  :is(.explore, .team, .gallery) .sec-head h2 { font-size: clamp(21px, 6.4vw, 28px); text-wrap: nowrap; }
  :is(.explore, .team, .gallery) .sec-head h2 br { display: inline; }
}
@media (max-width: 640px) {
  :is(.explore, .team, .gallery, .about-short) .eyebrow { gap: 10px; }
  :is(.explore, .team, .gallery, .about-short) .eyebrow::before, :is(.explore, .team, .gallery, .about-short) .eyebrow::after { width: 22px; }
}

/* Mobile: tên sản phẩm căn giữa thẻ (vòng số giữ nguyên vị trí góc trái, đè mép ảnh) */
@media (max-width: 640px) {
  .prod-head { justify-content: center; min-height: 50px; }
  .prod .prod-body .prod-head .ring { position: absolute; left: 0; top: 0; }
  .prod-head h3 { flex: 1; text-align: center; }
}

/* Khám phá: còn 3 thẻ (đã bỏ trang Giới thiệu) — 3 cột, mobile 1 cột */
.explore-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
@media (max-width: 760px) { .explore-grid { grid-template-columns: 1fr; } }

/* Chữ mô tả xám mờ trên nền tối: tăng độ sáng cho dễ đọc (≈ 88% trắng thay vì 55–74%) */
:is(.sec-dark .lead, .hero-lead, .hero-stats p, .mk-col > p, .mk-pair p, .vc-slide figcaption em, .app-grid figcaption span,
  .forces li span, .edge-list p, .benefit-num p, .kpi-grid p, .sx-step p, .sx-meter span, .sol-grid p, .vc-out p, .cv-kpis s,
  .charge span, .opp-nums s, .opp article > p:last-child, .page-hero-lead, .prod-body p, .explore-card p, .ft) { color: rgba(240, 242, 245, .88); }
:is(.sol-grid article, .vc-out article, .cv-kpis article, .charge, .opp article) { color: rgba(240, 242, 245, .88); }
/* Nhãn nhỏ in hoa trên nền tối: sáng hơn một bậc */
:is(.forces-t small, .ft-contact span, .sx-meter small, .tc3-die span, .prod-step small) { color: rgba(240, 242, 245, .66); }

/* Chuỗi giá trị — thẻ "Giá trị gia tăng" nền xanh navy (đồng bộ thẻ navy + vàng gold) */
.vc-ladder { background: linear-gradient(150deg, #15263d 0%, #0b1625 55%, #070e18 100%); border: 1px solid rgba(224, 198, 141, .3); color: rgba(240, 242, 245, .88); box-shadow: 0 18px 40px rgba(10, 20, 32, .16); }
.vc-ladder .vc-mark { border-bottom-color: rgba(224, 198, 141, .2); }
.vc-ladder .vc-mark b { color: #fff; }
.vc-ladder .vc-mark span { color: rgba(240, 242, 245, .74); }
.vc-ladder .vc-ladder-t { color: var(--gold-lt); }
.vc-ladder li > i { color: var(--gold-soft); }
.vc-ladder li span { color: rgba(240, 242, 245, .86); }
.vc-ladder li b { color: #fff; }
.vc-ladder li.is-cur span { color: #fff; }
.vc-ladder li.is-cur > i, .vc-ladder li.is-cur b { color: var(--gold-lt); }
.vc-ladder li.is-cur::after { box-shadow: 0 0 12px rgba(240, 212, 146, .6); }
.vc-ladder .vc-note { color: rgba(240, 242, 245, .58); }

/* Mobile/tablet: thay hàng số 01–07 dưới ảnh bằng 7 chấm (chấm đang xem kéo dài thành viên thuốc) */
@media (max-width: 980px) {
  .vc-thumbs { display: flex; justify-content: center; gap: 2px; margin: 4px 0 0; padding: 0; overflow: visible; }
  .vc-thumbs li { flex: none; }
  .vc-thumbs button { display: grid; place-items: center; width: 26px; height: 26px; padding: 0; gap: 0; }
  .vc-thumbs p { display: none; }
  .vc-thumbs span, .vc-thumbs button:hover span { width: 8px; height: 8px; border-radius: 999px; border: 1px solid var(--gold); background: transparent; font-size: 0; color: transparent; box-shadow: none; transform: none;
    transition: width .45s var(--ease), background-color .3s, border-color .3s; }
  .vc-thumbs li.is-done span { background: var(--gold-soft); border-color: var(--gold-soft); }
  .vc-thumbs li.is-on span { width: 24px; background: var(--navy); border-color: var(--navy); box-shadow: none; transform: none; }
  .vc-stage { touch-action: pan-y; }   /* vuốt ngang trên ảnh = chuyển bước, vuốt dọc vẫn cuộn trang */
}

/* Thị trường: tiêu đề khối "Định hướng đầu ra sản phẩm" (tiêu đề phụ trong section chuỗi giá trị) */
.vc-out-head { margin-bottom: clamp(24px, 3vw, 40px); }
.vc-out-head h2 { margin: 0; font-size: clamp(24px, 2.6vw, 38px); line-height: 1.15; }
.vc-out .vc-out-head .eyebrow { color: var(--gold); }   /* thắng .vc-out p (chữ sáng của thẻ navy) — tiêu đề nằm trên nền ngà */

/* Công nghệ: 2 thẻ "Công nghệ tinh thể / màng mỏng thường" — viền đậm, rõ hơn */
.problem article { border: 1.5px solid rgba(156, 117, 53, .5); background: #fff; box-shadow: 0 10px 26px rgba(10, 20, 32, .06); }
.problem article h3 { border-bottom: 0; }
.problem ul li { border-top-color: rgba(156, 117, 53, .28); }

/* Mobile: thẻ giải pháp 01–04 — số thứ tự nhỏ lại, nằm cùng hàng với tiêu đề thẻ */
@media (max-width: 640px) {
  .sol-grid article { grid-row: auto; grid-template-rows: auto; grid-template-columns: auto 1fr; column-gap: 16px; align-items: center; }
  .sol-grid .ring { width: 42px; height: 42px; margin: 0; font-size: 15px; }
  .sol-grid .ring::after { inset: -4px; }
  .sol-grid h3 { padding-bottom: 0; }
  .sol-grid h3 + p { grid-column: 1 / -1; margin-top: 18px; }
}

/* ===== Công nghệ — so sánh với pin truyền thống: nói thẳng lợi ích (tiết kiệm / tăng / giảm) ===== */
.cv-claim { display: flex; flex-wrap: wrap; align-items: baseline; column-gap: 8px; margin: 2px 0 18px; }
.cv-claim > span:first-child { flex-basis: 100%; margin-bottom: 6px; font: 500 14px/1.2 var(--f-title); color: #fff; }
.cv-kpis .cv-claim b { display: inline-block; font: 600 clamp(40px, 3.6vw, 56px)/1 var(--f-title); letter-spacing: -.03em; background: var(--gold-grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.cv-kpis .cv-claim b small { margin-left: 2px; font-size: .46em; letter-spacing: 0; color: inherit; }
.cv-claim > span:last-child { font: 500 13.5px/1.35 var(--f-title); color: rgba(240, 242, 245, .86); }
.cv-kpis .cv-bars { gap: 12px; margin-top: 0; padding-top: 16px; border-top: 1px solid rgba(224, 198, 141, .18); }
.cv-row { display: grid; grid-template-columns: minmax(0, 1fr) auto; column-gap: 8px; row-gap: 6px; align-items: baseline; font-size: 12.5px; }
.cv-row > span { color: rgba(240, 242, 245, .66); }
.cv-row > strong { font: 600 13px/1.3 var(--f-title); color: rgba(240, 242, 245, .8); }
.cv-row.is-new > span { color: var(--gold-lt); }
.cv-row.is-new > strong { color: #fff; }
.cv-bars .cv-row > i { grid-column: 1 / -1; display: block; height: 6px; min-width: 6px; width: calc(var(--a) * 100%); border-radius: 0 3px 3px 0; background: rgba(201, 198, 189, .45); transition-delay: .12s; }
.cv-bars .cv-row.is-new > i { width: calc(var(--b) * 100%); background: var(--gold-grad); transition-delay: 0s; box-shadow: 0 0 10px rgba(224, 198, 141, .3); }
@media (max-width: 640px) {
  .cv-claim > span:first-child { font-size: 13px; }
  .cv-kpis .cv-claim b { font-size: 38px; }
  .cv-claim > span:last-child { flex-basis: 100%; margin-top: 6px; font-size: 12.5px; }
  .cv-row { grid-template-columns: 1fr; row-gap: 3px; }
  .cv-row > strong { font-size: 12.5px; }
}

/* Bảng so sánh các hạng mục: có hàng tiêu đề cột, cột Nano Plasma tô nền vàng nhạt để đọc theo cột */
.cv-list li { grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr) minmax(0, 1fr); gap: 0; align-items: stretch; padding: 0; }
.cv-list li > * { display: flex; align-items: center; padding: 12px 12px; }
.cv-list li > span { padding-left: 0; }
.cv-list s { font-size: 13px; }
.cv-list s::after { content: none; }
.cv-list b { background: rgba(224, 198, 141, .16); color: #7d5c22; font-weight: 700; }
.cv-list b::before { content: ""; flex: none; width: 6px; height: 11px; margin: -3px 10px 0 2px; border: solid var(--gold); border-width: 0 2px 2px 0; transform: rotate(45deg); }
.cv-list li.is-same b::before { content: "="; width: auto; height: auto; margin: 0 8px 0 0; border: 0; transform: none; font-weight: 700; color: var(--gold); }
.cv-list .cv-list-head { border-bottom: 1px solid var(--gold-soft); }
.cv-list .cv-list-head > * { padding-top: 10px; padding-bottom: 10px; font: 600 10.5px/1.3 var(--f-title); letter-spacing: .12em; text-transform: uppercase; color: var(--mute); }
.cv-list .cv-list-head b { background: var(--navy); color: var(--gold-lt); }
.cv-list .cv-list-head b::before { content: none; }
@media (max-width: 640px) {
  .cv-list .cv-list-head.is-dup { display: none; }
  .cv-list li > * { padding: 11px 8px; font-size: 12.5px; }
  .cv-list li > span { padding-left: 0; }
  .cv-list .cv-list-head > * { font-size: 9.5px; letter-spacing: .08em; }
  .cv-list b::before { margin-right: 7px; }
}

/* Công nghệ — Ứng dụng: card ảnh nền navy + viền vàng gold */
.app-grid figure, .app-grid figure.is-light { background: linear-gradient(150deg, #15263d 0%, #0b1625 55%, #070e18 100%); border: 1px solid rgba(224, 198, 141, .55); box-shadow: 0 18px 40px rgba(10, 20, 32, .16); transition: border-color .4s, box-shadow .4s; }
.app-grid figure:hover { border-color: var(--gold-lt); box-shadow: 0 22px 46px rgba(10, 20, 32, .24), 0 0 24px rgba(224, 198, 141, .14); }
.app-grid figure.is-light img { filter: drop-shadow(0 14px 26px rgba(0, 0, 0, .45)); }
.app-grid figure.is-light figcaption { color: #fff; background: linear-gradient(0deg, rgba(7, 14, 24, .7), transparent); }
.app-grid figure.is-light figcaption span { color: rgba(240, 242, 245, .88); }
.app-grid figcaption b { color: #fff; }

/* Giải pháp tự động sạc: mũi tên lớn, nằm giữa khoảng trống giữa các bước */
.charge ol { display: flex; align-items: center; gap: 0; }
.charge li:not(.charge-arr) { flex: 0 1 auto; }
.charge li + li::before { content: none; }
.charge li.charge-arr { flex: 1 1 0; display: flex; justify-content: center; min-width: 64px; padding: 0 12px; }
.charge-arr svg { width: 56px; height: 16px; fill: none; stroke: var(--gold-lt); stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; filter: drop-shadow(0 0 6px rgba(240, 212, 146, .35)); }
@media (max-width: 960px) {
  .charge ol { flex-direction: column; align-items: stretch; }
  .charge li.charge-arr { justify-content: flex-start; min-width: 0; padding: 8px 0 8px 6px; }
  .charge-arr svg { width: 32px; transform: rotate(90deg); }
}

/* Thị trường mục tiêu: nội dung trong 3 thẻ căn giữa thẻ */
.opp article { text-align: center; }
.opp-nums { justify-content: center; }
.opp-brands { justify-content: center; }

/* ===== Dự án — Hiệu quả tài chính: bỏ khung vuông, vòng số liệu vàng gold sang trọng ===== */
.kpi-grid { gap: 0; }
.kpi-grid article { border: 0; background: none; padding: 40px 20px 8px; }
.kpi-grid article + article::after { content: ""; position: absolute; left: 0; top: 34px; bottom: 18px; width: 1px; background: linear-gradient(180deg, transparent, rgba(224, 198, 141, .38) 30%, rgba(224, 198, 141, .38) 70%, transparent); }
.kpi-grid article::before { content: ""; position: absolute; top: 15px; left: 50%; width: 198px; height: 198px; margin-left: -99px; border-radius: 50%; border: 1px dashed rgba(224, 198, 141, .28); pointer-events: none; }
.kpi-grid svg { top: 28px; width: 172px; height: 172px; overflow: visible; }
.kpi-grid .trk { stroke: rgba(224, 198, 141, .14); stroke-width: 2; }
.kpi-grid .val { stroke: url(#mkGold); stroke-width: 3.5; filter: drop-shadow(0 0 4px rgba(240, 212, 146, .45)); }
.kpi-grid b { margin-top: 66px; font-size: clamp(34px, 3vw, 46px); background: var(--gold-grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.kpi-grid b span { color: inherit; }
.kpi-grid s { margin-top: 8px; color: var(--gold-lt); letter-spacing: .2em; }
.kpi-grid p { position: relative; margin-top: 74px; padding-top: 16px; font: 500 15px/1.4 var(--f-title); color: #fff; }
.kpi-grid p::before { content: ""; position: absolute; top: 0; left: 50%; width: 7px; height: 7px; margin-left: -3.5px; transform: rotate(45deg); background: var(--gold-grad); box-shadow: 0 0 8px rgba(240, 212, 146, .5); }
@media (max-width: 960px) {
  .kpi-grid { row-gap: 28px; }
  .kpi-grid article:nth-child(3)::after { content: none; }
}
@media (max-width: 640px) {
  .kpi-grid { gap: 24px 0; }
  .kpi-grid article { padding: 26px 8px 4px; }
  .kpi-grid article::before { top: 9px; width: 146px; height: 146px; margin-left: -73px; }
  .kpi-grid svg { top: 18px; width: 128px; height: 128px; }
  .kpi-grid b { margin-top: 44px; font-size: 28px; }
  .kpi-grid p { margin-top: 52px; font-size: 13px; }
  .kpi-grid article + article::after { top: 22px; }
}

/* Dự án — biểu đồ doanh thu: thẻ nền xanh navy, cột vàng gold */
.rev { background: linear-gradient(150deg, #15263d 0%, #0b1625 55%, #070e18 100%); border: 1px solid rgba(224, 198, 141, .4); box-shadow: 0 18px 40px rgba(10, 20, 32, .16); color: #fff; }
.rev-head h3 { color: #fff; }
.rev .chart-sub { color: rgba(240, 242, 245, .74); }
.rev .chart-sub b { color: var(--gold-lt); }
.rev .vbars { border-bottom-color: rgba(224, 198, 141, .35);
  background: repeating-linear-gradient(0deg, transparent 0 47px, rgba(224, 198, 141, .08) 47px 48px); }   /* lưới ngang rất mờ */
.rev .vbar i { background: linear-gradient(180deg, #f4d98d 0%, #d6b062 35%, #b48a36 100%); box-shadow: 0 0 18px rgba(224, 198, 141, .18), inset 0 1px 0 rgba(255, 246, 220, .7); transition: transform 1.1s var(--ease), filter .3s, box-shadow .3s; }
.rev .vbar:hover i { background: linear-gradient(180deg, #fff0c2 0%, #e6c57a 35%, #c39a44 100%); box-shadow: 0 0 26px rgba(240, 212, 146, .45), inset 0 1px 0 rgba(255, 246, 220, .8); }
.rev .vbar b { color: #fff; }
.rev .vbar:last-child b { color: var(--gold-lt); }
.rev .vbar span { color: rgba(240, 242, 245, .7); }

/* Mục lục đầu trang con: các tag cùng kích thước, xếp đều (desktop 1 hàng, mobile lưới 2 cột) */
.page-toc { display: grid; grid-auto-flow: column; grid-auto-columns: 1fr; width: max-content; max-width: 100%; }
.page-toc a { justify-content: flex-start; min-height: 44px; line-height: 1.3; }
@media (max-width: 640px) {
  .page-toc { grid-auto-flow: row; grid-template-columns: 1fr 1fr; grid-auto-rows: 1fr; width: auto; }
  .page-toc a { padding: 10px 12px; }
}

/* Dự án — Mô hình kinh doanh: danh sách 01–04 trên nền navy, các thành phần vàng gold */
.model-list { padding: 4px clamp(22px, 3vw, 40px); background: linear-gradient(150deg, #15263d 0%, #0b1625 55%, #070e18 100%); border: 1px solid rgba(224, 198, 141, .4); box-shadow: 0 18px 40px rgba(10, 20, 32, .16); }
.model-list li { border-top-color: rgba(224, 198, 141, .2); }
.model-list li:first-child { border-top: 0; }
.model-list li:last-child { border-bottom: 0; }
.model-list span { background: var(--gold-grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.model-list h3 { color: var(--gold-lt); }
.model-list p { color: rgba(240, 242, 245, .86); }
/* Biểu đồ cơ cấu doanh thu bên cạnh: đồng bộ nền navy, thanh vàng gold */
.model-chart { background: linear-gradient(150deg, #15263d 0%, #0b1625 55%, #070e18 100%); border: 1px solid rgba(224, 198, 141, .4); box-shadow: 0 18px 40px rgba(10, 20, 32, .16); }
.model-chart h3 { color: #fff; }
.model-chart .chart-sub { color: rgba(240, 242, 245, .74); }
.model-chart .hbars li span { color: rgba(240, 242, 245, .88); }
.model-chart .hbars li b { color: var(--gold-lt); }
.model-chart .hbars li i { background: linear-gradient(90deg, #b48a36, #d6b062 60%, #f4d98d); box-shadow: 0 0 14px rgba(224, 198, 141, .2); }
.model-chart .hbars li:hover i { background: linear-gradient(90deg, #c39a44, #e6c57a 60%, #fff0c2); }
@media (max-width: 640px) { .model-list li { grid-template-columns: 54px 1fr; } }

/* Mobile: thẻ giai đoạn đầu tư — tiêu đề và các dòng thông số căn giữa thẻ */
@media (max-width: 640px) {
  .phase-body { text-align: center; }
  .phase-body h3 { text-wrap: balance; }
}

/* Dự án — vòng KPI: số + đơn vị nằm đúng tâm vòng (khối .kpi-val phủ trùng vùng SVG) */
.kpi-grid .kpi-val { position: relative; display: flex; flex-direction: column; align-items: center; justify-content: center; width: 172px; height: 172px; margin-top: -12px; }   /* svg: top 28 = padding 40 − 12 */
.kpi-grid .kpi-val b { margin-top: 0; }
.kpi-grid .kpi-val + p { margin-top: 30px; }
@media (max-width: 640px) {
  .kpi-grid .kpi-val { width: 128px; height: 128px; margin-top: -8px; }   /* svg: top 18 = padding 26 − 8 */
  .kpi-grid .kpi-val + p { margin-top: 24px; }
}

/* Lợi ích dự án: con số + đơn vị cùng một hàng ("219 triệu USD / năm") */
.benefit-num > div { display: flex; flex-wrap: wrap; align-items: baseline; column-gap: 10px; }
.benefit-num > div s { margin-top: 0; }
.benefit-num > div p { flex-basis: 100%; }
@media (max-width: 960px) {
  .phase-body { text-align: center; }
  .phase-body h3 { text-wrap: balance; }
}
@media (max-width: 640px) {
  .benefit article { text-align: center; }
  .benefit .ticks { display: inline-grid; text-align: left; }   /* danh sách giữ dấu ✓ thẳng hàng, cả khối nằm giữa thẻ */
  .benefit-num > div { justify-content: center; }
  /* Lộ trình: năm và tên mốc cùng một hàng */
  .timeline li { display: grid; grid-template-columns: auto 1fr; column-gap: 12px; align-items: baseline; }
  .timeline li > span { height: auto; }
  .timeline li > h3 { margin: 0 0 8px; }
  .timeline li > p { grid-column: 1 / -1; }
}

/* Dự án — thẻ giai đoạn đầu tư: nền xanh navy, chữ & đường kẻ vàng gold */
.phase { background: linear-gradient(150deg, #15263d 0%, #0b1625 55%, #070e18 100%); border: 1px solid rgba(224, 198, 141, .4); box-shadow: 0 18px 40px rgba(10, 20, 32, .16); }
.phase figure { border-bottom: 1px solid rgba(224, 198, 141, .4); }
.phase figure span { background: var(--gold-grad); color: var(--navy); }
.phase-body h3 { color: var(--gold-lt); }
.phase dl div { border-bottom-color: rgba(224, 198, 141, .2); }
.phase dt { color: var(--gold-soft); }
.phase dd { color: rgba(240, 242, 245, .92); }
.phase dd b { color: #f0d492; }
.phase-body > p { color: rgba(240, 242, 245, .78); }

/* Trang chủ — "Đội ngũ làm chủ công nghệ cốt lõi": tiêu đề căn giữa trang trên mọi màn hình */
.team .sec-head { margin-inline: auto; text-align: center; }
.team .sec-head .eyebrow { justify-content: center; }
.team .sec-head .eyebrow::after { content: ""; width: 34px; height: 1px; background: currentColor; opacity: .7; }

/* ===== Dự án — Lộ trình phát triển: "Trục vàng" (phương án A) =====
   Nền navy; trục vàng tự chạy 2024 → 2032 khi cuộn tới (site.js gắn .is-in cho .rd-line),
   các mốc sáng dần theo thứ tự, thẻ xen kẽ trên / dưới trục. Mốc trọng điểm mang biểu tượng
   Discovery có hoạt hoạ; đường trục bị "cắt" quanh biểu tượng (vành navy che), không xuyên qua logo. */
.road .sec-head h2 > span:not(.ds-word):not(.ds-char) { color: var(--gold-lt); }   /* chỉ cụm dòng 2 (các span tách chữ của motion.js kế thừa màu) */
.rd-line { position: relative; display: grid; grid-template-columns: repeat(7, minmax(0, 1fr)); gap: 0 14px; margin: 0 0 clamp(56px, 6vw, 88px); padding: 0; list-style: none; }
.rd-line::before, .rd-line::after { content: ""; position: absolute; z-index: 0; left: 0; right: 0; top: 50%; height: 2px; margin-top: -1px; background: rgba(224, 198, 141, .14); }
.rd-line::after { background: var(--gold-grad); box-shadow: 0 0 14px rgba(240, 212, 146, .55); transform: scaleX(0); transform-origin: left; transition: transform 2.6s var(--ease) .2s; }
.rd-line.is-in::after { transform: scaleX(1); }
.rd-item { display: grid; grid-template-rows: 1fr 84px 1fr; min-height: 600px; }
.rd-node { position: relative; z-index: 2; grid-row: 2; display: grid; place-items: center; }
.rd-node i { position: relative; display: grid; place-items: center; width: 16px; height: 16px; border-radius: 50%; background: var(--navy); border: 2px solid var(--gold-lt); opacity: 0; transform: scale(.4);
  transition: transform .6s var(--ease), opacity .4s, background-color .4s, box-shadow .6s; transition-delay: calc(.35s + var(--k) * .3s); }
.rd-line.is-in .rd-node i { opacity: 1; transform: none; background-color: var(--gold-lt); box-shadow: 0 0 0 6px rgba(224, 198, 141, .16), 0 0 18px rgba(240, 212, 146, .6); }
/* Mốc trọng điểm: biểu tượng trong vòng navy, vành navy 12px cắt đường trục quanh logo */
.rd-item.is-key .rd-node i { width: 58px; height: 58px; border-width: 1.5px; }
.rd-line.is-in .rd-item.is-key .rd-node i { background-color: var(--navy); box-shadow: 0 0 0 12px var(--navy), 0 0 30px 12px rgba(240, 212, 146, .22); }
.rd-item.is-key .rd-node i .mk { width: 22px; height: auto; overflow: visible; }
.rd-item.is-key .rd-node .b { transform: scaleY(0); transition: transform .7s var(--ease); }
.rd-line.is-in .rd-item.is-key .rd-node .b { transform: none; }
.rd-item.is-key .rd-node .b:nth-child(4) { transition-delay: calc(.75s + var(--k) * .3s); }
.rd-item.is-key .rd-node .b:is(:nth-child(3), :nth-child(5)) { transition-delay: calc(.85s + var(--k) * .3s); }
.rd-item.is-key .rd-node .b:is(:nth-child(2), :nth-child(6)) { transition-delay: calc(.95s + var(--k) * .3s); }
.rd-item.is-key .rd-node .b:is(:nth-child(1), :nth-child(7)) { transition-delay: calc(1.05s + var(--k) * .3s); }
/* vòng nét đứt xoay chậm + sóng sáng lan ra (chỉ chạy khi đã hiện) */
.rd-item.is-key .rd-node i::before { content: ""; position: absolute; inset: -9px; border-radius: 50%; border: 1px dashed rgba(224, 198, 141, .55); }
.rd-item.is-key .rd-node i::after { content: ""; position: absolute; inset: -1.5px; border-radius: 50%; border: 1px solid rgba(240, 212, 146, .7); opacity: 0; }
.rd-line.is-in .rd-item.is-key .rd-node i::before { animation: rdSpin 14s linear infinite; }
.rd-line.is-in .rd-item.is-key .rd-node i::after { animation: rdPulse 2.8s var(--ease) infinite; animation-delay: calc(1.6s + var(--k) * .3s); }
.rd-line.is-in .rd-item.is-key .rd-node .mk { animation: rdGlow 2.8s ease-in-out infinite; animation-delay: calc(1.6s + var(--k) * .3s); }
@keyframes rdSpin { to { transform: rotate(360deg); } }
@keyframes rdPulse { 0% { opacity: .9; transform: scale(1); } 100% { opacity: 0; transform: scale(1.7); } }
@keyframes rdGlow { 0%, 100% { filter: drop-shadow(0 0 0 rgba(240, 212, 146, 0)); } 50% { filter: drop-shadow(0 0 6px rgba(240, 212, 146, .85)); } }
/* thẻ */
.rd-card { position: relative; z-index: 1; align-self: end; padding: 20px 18px; border: 1px solid rgba(224, 198, 141, .3); background: linear-gradient(150deg, #15263d 0%, #0b1625 55%, #070e18 100%);
  opacity: 0; transform: translateY(18px); transition: opacity .7s ease, transform .9s var(--ease), border-color .4s; transition-delay: calc(.5s + var(--k) * .3s); }
.rd-item:nth-child(even) .rd-card { grid-row: 3; align-self: start; transform: translateY(-18px); }
.rd-card::after { content: ""; position: absolute; left: 50%; width: 1px; height: 30px; }
.rd-item:nth-child(odd) .rd-card::after { top: 100%; background: linear-gradient(rgba(224, 198, 141, .6), rgba(224, 198, 141, 0)); }
.rd-item:nth-child(even) .rd-card::after { bottom: 100%; background: linear-gradient(rgba(224, 198, 141, 0), rgba(224, 198, 141, .6)); }
.rd-item.is-key .rd-card::after { height: 14px; }   /* không chạm vào logo */
.rd-line.is-in .rd-card { opacity: 1; transform: none; }
.rd-card:hover { border-color: var(--gold-lt); }
.rd-item.is-key .rd-card { border-color: rgba(224, 198, 141, .7); box-shadow: 0 0 30px rgba(224, 198, 141, .12); }
.rd-year { display: block; margin-bottom: 8px; font: 700 22px/1 var(--f-title); letter-spacing: -.02em; background: var(--gold-grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.rd-card h3 { margin: 0 0 8px; font: 600 15px/1.3 var(--f-title); color: #fff; }
.rd-card p { margin: 0; font-size: 12.5px; line-height: 1.6; color: rgba(240, 242, 245, .8); }
.rd-card em { font-style: italic; color: var(--gold-lt); }
@media (max-width: 1100px) {
  .rd-line { grid-template-columns: 1fr; gap: 18px; padding-left: 44px; }
  .rd-line::before, .rd-line::after { left: 14px; right: auto; top: 0; bottom: 0; width: 2px; height: auto; margin: 0; }
  .rd-line::after { transform: scaleY(0); transform-origin: top; }
  .rd-line.is-in::after { transform: scaleY(1); }
  .rd-item { display: block; min-height: 0; position: relative; }
  .rd-node { position: absolute; left: -30px; top: 24px; width: 0; height: 0; }
  .rd-item.is-key .rd-node { top: 44px; }
  .rd-item.is-key .rd-node i { width: 42px; height: 42px; }
  .rd-line.is-in .rd-item.is-key .rd-node i { box-shadow: 0 0 0 9px var(--navy), 0 0 24px 9px rgba(240, 212, 146, .2); }
  .rd-item.is-key .rd-node i .mk { width: 16px; }
  .rd-card, .rd-item:nth-child(even) .rd-card { transform: translateX(16px); }
  .rd-card::after { display: none; }
}
@media (prefers-reduced-motion: reduce) { html:not(.ds-motion-forced) .rd-line * { animation: none !important; } }

/* Hero: giãn dòng tiêu đề, chừa chỗ cho dấu tiếng Việt chồng (Ẫ, Ầ, Ấ) */
.hero h1 { gap: .22em; line-height: 1.2; }
.hero h1 > span { padding-top: .06em; }

/* Hero: số liệu và đơn vị cùng một hàng ("6.16 TỶ USD") */
.hero-stats article { display: flex; flex-wrap: wrap; align-items: baseline; column-gap: 10px; }
.hero-stats article s { margin-top: 0; }
.hero-stats article p { flex-basis: 100%; margin-top: 10px; }
@media (max-width: 640px) { .hero-stats article { column-gap: 6px; } .hero-stats article p { margin-top: 6px; } }
.rd-line.is-in .rd-item .rd-card { transform: none; }
@media (max-width: 1100px) {
  .rd-node { display: block; }
  .rd-node i { position: absolute; left: 0; top: 0; translate: -50% -50%; }   /* tâm mốc nằm đúng trên trục dọc */
  .rd-item .rd-node { top: 34px; }
  .rd-item.is-key .rd-node { top: 52px; }
}

/* Trang chủ — Đội ngũ: 4 thẻ giống nhau, nền xanh navy, viền vàng gold */
.person, .person.is-lead { display: flex; flex-direction: column; background: linear-gradient(150deg, #15263d 0%, #0b1625 55%, #070e18 100%); border: 1px solid rgba(224, 198, 141, .55); color: #fff; box-shadow: 0 18px 40px rgba(10, 20, 32, .16); transition: transform .5s var(--ease), box-shadow .5s, border-color .4s; }
.person:hover { border-color: var(--gold-lt); box-shadow: 0 26px 52px rgba(10, 20, 32, .28), 0 0 26px rgba(224, 198, 141, .14); }
.person img, .person.is-lead img { box-shadow: 0 0 0 4px #0f1d2f, 0 0 0 5.5px var(--gold-lt), 0 10px 26px rgba(0, 0, 0, .4); }
.person h3, .person.is-lead h3 { color: #fff; }
.person .role, .person.is-lead .role { color: var(--gold-lt); }
.person ul, .person.is-lead ul { margin-top: 18px; padding-top: 4px; border-top: 1px solid rgba(224, 198, 141, .3); }
.person ul li, .person.is-lead ul li { border-top-color: rgba(224, 198, 141, .14); color: rgba(240, 242, 245, .86); }
.person ul li:first-child { border-top: 0; }
.person ul li::before { background: var(--gold-lt); }
/* tên + chức danh cùng chiều cao giữa 4 thẻ để danh sách bắt đầu thẳng hàng */
@media (min-width: 961px) { .person h3 { min-height: 2.6em; display: flex; align-items: flex-end; } }

/* Hero mobile: đơn vị không rớt dòng riêng ("500.000 TẤN / NĂM") */
@media (max-width: 640px) {
  .hero-stats article b { font-size: 21px; }
  .hero-stats article s { white-space: nowrap; letter-spacing: .1em; font-size: 9px; }
}

/* Đội ngũ: nội dung thẻ căn giữa, tên luôn trên 1 dòng (desktop) */
.person { text-align: center; }
.person h3 { justify-content: center; min-height: 0; white-space: nowrap; font-size: clamp(15px, 1.25vw, 19px); }
@media (max-width: 960px) { .person h3 { white-space: normal; } }
.person ul { text-align: left; }   /* danh sách giữ dấu ◆ thẳng hàng */

/* Hình ảnh hoạt động: tiêu đề căn giữa trang */
.gallery .sec-head { margin-inline: auto; text-align: center; }
.gallery .sec-head .eyebrow { justify-content: center; }
.gallery .sec-head .eyebrow::after { content: ""; width: 34px; height: 1px; background: currentColor; opacity: .7; }

/* Form liên hệ: nút gửi căn giữa (mọi màn hình) */
.contact-form button { display: flex; justify-content: center; margin-inline: auto; }

/* Footer: huy hiệu wafer căn giữa hàng logo; câu "Discover to Success" vàng gold */
.ft-top { display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; }
.ft-top .ft-logo { justify-self: start; }
.ft-top .ft-claim { justify-self: end; }
.wafer-badge.ft-badge { position: relative; left: auto; bottom: auto; width: 124px; height: 124px; box-shadow: 0 0 0 6px rgba(224, 198, 141, .08), 0 0 34px rgba(224, 198, 141, .16), 0 16px 34px rgba(0, 0, 0, .4); }
.wafer-badge.ft-badge::before { inset: 26px; }
.ft-badge .wb-core { inset: 28px; }
.ft-badge .wb-core svg { width: 26px; }
.ft-claim { background: var(--gold-grad); -webkit-background-clip: text; background-clip: text; color: transparent; font-weight: 400; }
@media (max-width: 760px) {
  .ft-top { grid-template-columns: 1fr; justify-items: center; row-gap: 22px; }
  .ft-top .ft-logo, .ft-top .ft-claim { justify-self: center; text-align: center; }
  .wafer-badge.ft-badge { width: 104px; height: 104px; }
  .wafer-badge.ft-badge::before { inset: 21px; }
  .ft-badge .wb-core { inset: 23px; }
  .ft-badge .wb-core svg { width: 21px; }
}

/* Ảnh Chủ tịch (Về Discovery Siltron): dời khung để người đứng giữa ảnh */
.about-visual .frame img { object-position: 66% 30%; }

/* Hành trình giá trị: giá từng bước ("$1.300 – 1.800 / kg") chữ lớn hơn */
.sx-step s { font-size: 16px; letter-spacing: .03em; }
@media (max-width: 760px) { .sx-step s { font-size: 14px; } }

/* Mobile: band — chữ ở trên, logo vàng gold rõ nét (không mờ) ở dưới, căn giữa */
@media (max-width: 760px) {
  .band .band-copy { order: 1; padding-top: 72px; padding-bottom: 28px; }
  .band .band-mark { order: 2; position: relative; inset: auto; right: auto; top: auto; bottom: auto; margin: 0 auto 108px; height: 200px; transform: none; opacity: 1; }
  .band .mk-big .b { fill: url(#mkGold); }
}
@media (max-width: 760px) {
  .band .band-copy { text-align: center; }
  .band .band-copy .eyebrow { justify-content: center; }
  .band .band-copy .eyebrow::after { content: ""; width: 34px; height: 1px; background: currentColor; opacity: .7; }
  .band .band-copy h2 { margin-inline: auto; text-wrap: balance; }
}
/* Band mobile: logo đầy đủ Discovery Siltron = biểu tượng (có hoạt hoạ) + chữ bên dưới */
.band-word { display: none; }
@media (max-width: 760px) {
  .band .band-mark { margin-bottom: 18px; height: 170px; }
  .band-word { display: block; order: 3; position: relative; z-index: 2; width: 196px; height: auto; margin: 0 auto 112px; }
}

/* Liên hệ: khối thông tin (điện thoại, email, trụ sở, VP) — thẻ navy, chữ & đường kẻ gold */
.contact-lines { padding: 6px clamp(20px, 2.4vw, 32px); background: linear-gradient(150deg, #15263d 0%, #0b1625 55%, #070e18 100%); border: 1px solid rgba(224, 198, 141, .55); box-shadow: 0 18px 40px rgba(10, 20, 32, .16); }
.contact-lines a, .contact-lines p { border-bottom-color: rgba(224, 198, 141, .18); color: rgba(240, 242, 245, .92); }
.contact-lines > :last-child { border-bottom: 0; }
.contact-lines a { color: #fff; background-image: linear-gradient(var(--gold-lt), var(--gold-lt)); }
.contact-lines a:hover { color: var(--gold-lt); }
.contact-lines span { color: var(--gold-lt); }

/* Hành trình giá trị: chữ "DISCOVERY SILTRON" màu đen dưới biểu tượng trên tấm wafer (theo vị trí/tỉ lệ/độ hiện của .sx-logo) */
.sx-word { position: absolute; left: var(--lx, 66%); top: calc(var(--ly, 50%) + var(--lw, 90px) * .784 * var(--ls, .7) + var(--lw, 90px) * .14);
  display: flex; flex-direction: column; align-items: center; transform: translateX(-50%) scale(var(--ls, .7)); transform-origin: 50% 0; opacity: var(--lo, 0);
  color: #0b0f17; font-family: var(--f-title); line-height: 1; white-space: nowrap; pointer-events: none; }
.sx-word b { font-weight: 700; font-size: calc(var(--lw, 90px) * .3); letter-spacing: .04em; }
.sx-word i { margin-top: .3em; font-style: normal; font-weight: 500; font-size: calc(var(--lw, 90px) * .2); letter-spacing: .32em; padding-left: .32em; }

/* Liên hệ: cả khối bên trái (tiêu đề, mô tả, thông tin) thành thẻ navy viền gold */
.contact-copy { padding: clamp(28px, 3.4vw, 48px); background: linear-gradient(150deg, #15263d 0%, #0b1625 55%, #070e18 100%); border: 1px solid rgba(224, 198, 141, .55); box-shadow: 0 18px 40px rgba(10, 20, 32, .16); }
.contact-copy .eyebrow { color: var(--gold-lt); }
.contact .contact-copy h2 { color: #fff; }
.contact-copy > p { color: rgba(240, 242, 245, .82); }
.contact-copy .contact-lines { padding: 0; background: none; border: 0; border-top: 1px solid rgba(224, 198, 141, .35); box-shadow: none; }
.contact .contact-copy h2 { font-size: clamp(22px, 2.1vw, 32px); }   /* vừa 2 dòng trong thẻ */
/* Cụm biểu tượng + chữ nằm giữa tấm wafer: dời cả cụm lên nửa chiều cao phần chữ */
.sx-pin { --gs: calc((var(--lw, 90px) * .14 + var(--lw, 90px) * .58 * var(--ls, .7)) / 2); }
.sx-logo { top: calc(var(--ly, 50%) - var(--gs)); }
.sx-word { top: calc(var(--ly, 50%) - var(--gs) + var(--lw, 90px) * .784 * var(--ls, .7) + var(--lw, 90px) * .14); }


/* ScrollTrigger cần cuộn tức thì khi đo lại vị trí: scroll-behavior: smooth làm mọi lần đo lệch đúng bằng
   quãng đã cuộn (thẻ sản phẩm / đội ngũ bị ẩn ngay trên màn hình). Neo #mục cuộn êm do motion.js lo. */
html.ds-gsap { scroll-behavior: auto; }

/* ==========================================================================
   Liên hệ — phương án B: một khối navy duy nhất, form tối viền vàng,
   thông tin liên hệ thành dải 4 ô phía dưới (demo /demo-lien-he/#b)
   ========================================================================== */
.cx-card { background: linear-gradient(150deg, #15263d 0%, #0b1625 55%, #070e18 100%); border: 1px solid rgba(224, 198, 141, .6); box-shadow: 0 30px 70px rgba(10, 20, 32, .22); color: #fff; }
.cx-top { display: grid; grid-template-columns: .9fr 1.1fr; gap: clamp(28px, 4vw, 64px); padding: clamp(28px, 3.6vw, 56px); }
.cx-top > * { min-width: 0; }
.cx-head { align-self: center; }
.cx-head .eyebrow { color: var(--gold-lt); }
.contact .cx-head h2 { margin-bottom: 16px; color: #fff; font-size: clamp(22px, 2.1vw, 32px); }
.cx-lead { margin: 0; max-width: 46ch; color: rgba(240, 242, 245, .82); }
.cx-card .contact-form { padding: 0; background: none; border: 0; box-shadow: none; }
.cx-card .field-grid span { color: var(--gold-lt); }
.cx-card .field-grid :is(input, select, textarea) { background: rgba(255, 255, 255, .05); border-color: rgba(224, 198, 141, .3); color: #fff; }
.cx-card .field-grid select option { color: #0b1625; }
.cx-card .field-grid :is(input, select, textarea):focus { border-color: var(--gold-lt); box-shadow: 0 0 0 3px rgba(224, 198, 141, .16); }
.cx-card .field-grid .is-bad { border-color: #ff8f78; }
.cx-card .contact-form button { margin-top: 24px; background: var(--gold-grad); color: #0b1625; }
.cx-card .form-status { color: var(--gold-lt); }
.cx-card .form-status.is-err { color: #ff9b85; }
.cx-info { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid rgba(224, 198, 141, .35); }
.cx-info > * { display: grid; gap: 4px; align-content: start; margin: 0; padding: 22px clamp(18px, 2vw, 30px); border-right: 1px solid rgba(224, 198, 141, .18); font-size: 14px; color: rgba(240, 242, 245, .92); }
.cx-info > :last-child { border-right: 0; }
.cx-info a { color: #fff; font-weight: 600; transition: color .25s; }
.cx-info a:hover { color: var(--gold-lt); }
.cx-info span { font: 600 10.5px/2 var(--f-title); letter-spacing: .14em; text-transform: uppercase; color: var(--gold-lt); }
@media (max-width: 900px) {
  .cx-top { grid-template-columns: 1fr; }
  .cx-info { grid-template-columns: 1fr 1fr; }
  .cx-info > :nth-child(2) { border-right: 0; }
  .cx-info > :nth-child(-n+2) { border-bottom: 1px solid rgba(224, 198, 141, .18); }
}
@media (max-width: 640px) {
  .cx-head :is(.eyebrow, h2, .cx-lead) { text-align: center; margin-inline: auto; }
  .cx-head .eyebrow { justify-content: center; }
  .cx-card .field-grid { grid-template-columns: 1fr; }
  .cx-card .form-status { text-align: center; }
  .cx-info { grid-template-columns: 1fr; }
  .cx-info > * { border-right: 0; border-bottom: 1px solid rgba(224, 198, 141, .18); }
  .cx-info > :last-child { border-bottom: 0; }
}
/* Nút "Gửi đề xuất hợp tác" (vàng trên nền navy): rê chuột → nền navy lấp từ trái sang, chữ vàng,
   viền + quầng sáng vàng, nhấc nhẹ, vệt sáng quét một lượt (ngược với các nút navy khác của site) */
.cx-card .contact-form button { border-color: #f0d492; box-shadow: 0 12px 28px rgba(0, 0, 0, .28), inset 0 1px 0 rgba(255, 246, 220, .5); }
.cx-card .contact-form button::before { background: linear-gradient(150deg, #1a2e4a 0%, #0d1a2b 55%, #08111d 100%); }
@media (hover: hover) and (pointer: fine) {
  .cx-card .contact-form button:hover { background: var(--gold-grad); color: #f0d492; border-color: #f0d492; transform: translateY(-3px);
    box-shadow: 0 18px 38px rgba(0, 0, 0, .35), 0 0 0 4px rgba(224, 198, 141, .18), 0 0 28px rgba(240, 212, 146, .35); }
}
/* tiêu đề cột trái: màn hẹp hơn 1200px bỏ ngắt dòng cứng để không rơi lẻ chữ "Siltron" */
@media (max-width: 1199px) { .cx-head h2 br { display: none; } }

/* Hành trình giá trị: thêm 15% quãng cuộn giữ bước 05 trước khi sang section dưới
   (quãng cuộn = cao − 1 màn: 420vh → 483vh; mobile 460vh → 529vh). forge.js: HOLD = 1.15 */
.sx { height: 583vh; }
@media (max-width: 760px) { .sx { height: 629vh; } }

/* Mũi tên + chấm của Hành trình: mũi tên chỉ hiện khi đã cuộn tới bước 05 (.is-ctrl do forge.js gắn), hiện dần;
   dòng "Vuốt ngang để chuyển bước" chỉ có ở chế độ ngang (lúc cuộn thì vuốt ngang chưa có tác dụng) */
.sx.is-ctrl .sx-ctrl { animation: sxCtrlIn .45s var(--ease) both; }
@keyframes sxCtrlIn { from { opacity: 0; } to { opacity: 1; } }
.sx.is-ctrl:not(.is-free) .sx-ctrl span { display: none; }