/* =========================================================
   VDX AI — Màu chủ đạo #246BFD, nền ánh kim
   ========================================================= */
:root{
  --abyss:#030817;
  --deep:#06112E;
  --deep-2:#0A1A42;
  --deep-3:#102656;
  --steel-900:#0A2A7A;
  --steel-700:#1A56D6;
  --steel-500:#246BFD;
  --steel-300:#7FA8FF;
  --steel-100:#DCE7FF;
  --primary:#246BFD;
  /* Kim loại xanh cho nền nút, tab, khối nhấn (chữ trắng) */
  --chrome:linear-gradient(115deg,#1545C4 0%,#246BFD 24%,#5C93FF 42%,#A7C4FF 50%,#5C93FF 58%,#246BFD 76%,#1545C4 100%);
  /* Kim loại sáng cho chữ nhấn trên nền tối */
  --chrome-text:linear-gradient(115deg,#4F86FF 0%,#8FB3FF 28%,#F2F6FF 50%,#8FB3FF 72%,#4F86FF 100%);
  --chrome-soft:linear-gradient(135deg,rgba(175,200,255,.6),rgba(36,107,253,.12) 38%,rgba(160,190,255,.04) 62%,rgba(175,200,255,.45));
  --text:#EAF0FF;
  --text-2:#A9B8D9;
  --muted:#97A7CE;
  --accent-text:#8FB3FF;
  --line:rgba(150,180,255,.12);
  --line-2:rgba(150,180,255,.22);
  /* Kiểu chữ: Be Vietnam Pro cho toàn bộ (dấu tiếng Việt được thiết kế chuẩn), mono chỉ dùng cho số */
  --display:"Be Vietnam Pro",system-ui,sans-serif;
  --sans:"Be Vietnam Pro",system-ui,sans-serif;
  --label:"Be Vietnam Pro",system-ui,sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,monospace;
  --lh-d:1.06;      /* line-height tiêu đề lớn */
  --lh-d2:1.18;     /* line-height tiêu đề nhỏ */
  --ls-d:-.035em;   /* letter-spacing tiêu đề lớn */
  --ls-d2:-.018em;  /* letter-spacing tiêu đề nhỏ */
  --ls-label:.14em;
  --fs-label:11.5px;
  --wrap:1320px;
  --r:24px;
  --announce-h:40px;
}
html[lang="vi"] body{line-height:1.7}
html[lang="vi"]{--lh-d:1.16;--lh-d2:1.28;--ls-d:-.022em;--ls-d2:-.008em;--ls-label:.08em;--fs-label:12px}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:90px}
body{font-family:var(--sans);font-size:16px;line-height:1.6;text-rendering:optimizeLegibility;font-feature-settings:"kern" 1;color:var(--text);background:var(--abyss);-webkit-font-smoothing:antialiased;overflow-x:hidden}
/* Nền kim loại: dải sáng chéo + vân xước mảnh + vệt phản chiếu chạy chậm */
body::before{content:"";position:fixed;inset:0;z-index:-2;background:
  radial-gradient(1100px 650px at 88% 0%,rgba(36,107,253,.30),transparent 60%),
  radial-gradient(900px 600px at 0% 65%,rgba(26,86,214,.22),transparent 62%),
  linear-gradient(125deg,#030817 0%,#08163A 24%,#15307A 36%,#0B1C4A 46%,#050E2A 60%,#0F2560 76%,#1A3A8C 84%,#050E2A 100%)}
body::after{content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;background:
  linear-gradient(105deg,transparent 38%,rgba(170,198,255,.07) 47%,rgba(235,242,255,.10) 50%,rgba(170,198,255,.07) 53%,transparent 62%),
  repeating-linear-gradient(90deg,rgba(255,255,255,.014) 0 1px,transparent 1px 3px),
  repeating-linear-gradient(0deg,rgba(255,255,255,.008) 0 1px,transparent 1px 4px);
  background-size:300% 100%,auto,auto}
@keyframes drift{0%,100%{background-position:110% 0,0 0,0 0}50%{background-position:-10% 0,0 0,0 0}}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 40px}

/* ---------- Metallic text ---------- */
/* Trong các phần nội dung (.sec) chữ nhấn dùng màu phẳng để ánh kim chỉ còn ở hero & CTA footer */
.sec .metal{background:none;color:var(--accent-text);-webkit-text-fill-color:currentColor}
.metal{background:var(--chrome-text);background-size:200% 100%;background-position:50% 0;-webkit-background-clip:text;background-clip:text;color:transparent}
em.metal{font-style:normal}
@keyframes sheen{0%,100%{background-position:100% 0}50%{background-position:0 0}}

.tag{display:inline-flex;align-items:center;gap:10px;font-family:var(--label);font-weight:500;font-size:12px;letter-spacing:var(--ls-label);text-transform:uppercase;color:var(--steel-300)}
.tag::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--steel-300);box-shadow:0 0 12px var(--steel-300)}

.h2{font-family:var(--display);font-weight:300;font-size:clamp(36px,4.6vw,68px);line-height:var(--lh-d);letter-spacing:var(--ls-d);max-width:960px}
.lead{font-size:18px;color:var(--text-2);font-weight:300;max-width:560px}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;height:48px;padding:0 24px;border-radius:999px;font-size:15px;font-weight:500;white-space:nowrap;transition:transform .25s,box-shadow .3s,background .3s,border-color .3s,color .3s}
.btn .arr{font-style:normal;transition:transform .25s}
.btn:hover .arr{transform:translateX(3px)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-lg{height:58px;padding:0 32px;font-size:16px}
.btn-metal{color:#fff;text-shadow:0 1px 1px rgba(6,16,51,.35);background:var(--chrome);background-size:220% 100%;box-shadow:inset 0 1px 0 rgba(255,255,255,.7),0 10px 30px -12px rgba(36,107,253,.7)}
.btn-metal{background-position:0 0;transition:transform .25s,box-shadow .3s,background-position .7s ease}
.btn-metal:hover{background-position:100% 0;transform:translateY(-1px);box-shadow:inset 0 1px 0 rgba(255,255,255,.8),0 16px 40px -12px rgba(127,168,255,.8)}
.btn-glass{border:1px solid var(--line-2);background:rgba(10,26,66,.35);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px)}
.btn-glass:hover{border-color:var(--steel-300)}
.link{display:inline-flex;align-items:center;gap:8px;font-weight:500;color:var(--steel-300);font-size:15px}
.link .arr{font-style:normal;transition:transform .25s}
.link:hover{color:#fff}
.link:hover .arr{transform:translateX(4px)}
.btns{display:flex;gap:12px;flex-wrap:wrap}

/* ---------- Metallic-border card ---------- */
.mcard{position:relative;border-radius:var(--r);background:
  linear-gradient(145deg,rgba(52,92,190,.42) 0%,rgba(14,32,80,.72) 32%,rgba(34,70,160,.38) 52%,rgba(8,20,54,.78) 74%,rgba(28,60,140,.40) 100%)}
.mcard::after{content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;background:linear-gradient(105deg,transparent 35%,rgba(200,218,255,.10) 48%,rgba(240,245,255,.14) 50%,rgba(200,218,255,.10) 52%,transparent 65%);background-size:260% 100%;background-position:130% 0;transition:background-position 1.4s cubic-bezier(.2,.7,.2,1)}
.mcard:hover::after{background-position:-30% 0}
.mcard::before{content:"";position:absolute;inset:0;border-radius:inherit;padding:1px;background:var(--chrome-soft);-webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);-webkit-mask-composite:xor;mask-composite:exclude;pointer-events:none}

/* ---------- Announcement ---------- */
.announce{position:fixed;top:0;left:0;right:0;z-index:61;height:var(--announce-h);display:flex;align-items:center;justify-content:center;gap:12px;font-size:13px;color:var(--text-2);background:var(--chrome);background-size:220% 100%;color:rgba(255,255,255,.88);border-bottom:1px solid rgba(255,255,255,.12);padding:0 16px;transition:transform .35s}
.announce:hover{color:#fff}
.announce > span[data-i18n]{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;min-width:0}
.announce-dot{width:6px;height:6px;border-radius:50%;background:var(--steel-100);box-shadow:0 0 10px var(--steel-100);flex:none}
.announce-link{color:#fff;font-weight:500;white-space:nowrap}
body.scrolled .announce{transform:translateY(-100%)}

/* ---------- Nav ---------- */
.nav{position:fixed;left:0;right:0;top:var(--announce-h);z-index:60;transition:top .35s,background .3s,border-color .3s;border-bottom:1px solid transparent}
body.scrolled .nav{top:0;background:rgba(3,8,23,.72);backdrop-filter:saturate(1.3) blur(18px);-webkit-backdrop-filter:saturate(1.3) blur(18px);border-color:var(--line)}
.nav-inner{max-width:var(--wrap);margin:0 auto;padding:0 40px;height:72px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.logo{display:flex;align-items:center;gap:10px;font-family:var(--display);font-size:20px;font-weight:500;letter-spacing:var(--ls-d2)}
.logo-mark{width:36px;height:36px;border-radius:50%;box-shadow:0 0 0 1px rgba(220,231,255,.25),0 6px 18px -6px rgba(36,107,253,.8)}
.logo b{font-weight:300;margin-left:4px;color:var(--text-2)}
.menu{display:flex;gap:4px}
.menu-item{position:relative}
.menu-btn{display:flex;align-items:center;gap:8px;height:40px;padding:0 16px;border-radius:999px;font-size:15px;color:var(--text-2);transition:color .2s,background .2s}
.menu-item.open .menu-btn,.menu-btn:focus-visible{color:#fff;background:rgba(127,168,255,.08)}
.chev{width:7px;height:7px;border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;transform:rotate(45deg) translateY(-2px);opacity:.6;transition:transform .25s}
.menu-item.open .chev{transform:rotate(225deg) translate(-1px,-1px)}
.mega,.drop{position:absolute;top:calc(100% + 10px);left:0;padding:10px;border-radius:18px;background:rgba(6,17,46,.96);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);border:1px solid var(--line-2);box-shadow:0 30px 70px -20px rgba(0,0,0,.7);opacity:0;visibility:hidden;transform:translateY(-6px);transition:all .25s}
.menu-item::after{content:"";position:absolute;left:0;right:0;top:100%;height:12px}
.menu-item.open .mega,.menu-item.open .drop{opacity:1;visibility:visible;transform:none}
.mega{display:grid;grid-template-columns:280px 260px;gap:8px}
.mega small,.drop small{display:block;font-family:var(--label);font-weight:500;font-size:var(--fs-label);letter-spacing:var(--ls-label);text-transform:uppercase;color:var(--muted);padding:8px 12px 6px}
.mega a{display:block;padding:10px 12px;border-radius:12px;transition:background .2s}
.mega a:hover{background:rgba(127,168,255,.08)}
.mega a b{display:block;font-weight:500;font-size:14px}
.mega a span{font-size:13px;color:var(--muted)}
.drop{min-width:230px}
.drop a{display:block;padding:10px 12px;border-radius:10px;font-size:14px;color:var(--text-2)}
.drop a:hover{background:rgba(127,168,255,.08);color:#fff}
.nav-right{display:flex;align-items:center;gap:12px}
.lang{display:inline-flex;padding:3px;border-radius:999px;border:1px solid var(--line-2);background:rgba(10,26,66,.4)}
.lang button{height:30px;padding:0 12px;border-radius:999px;font-size:12px;font-weight:500;letter-spacing:.04em;color:var(--muted);transition:all .25s}
.lang button.on{background:var(--chrome);background-size:200% 100%;color:#fff}
.burger{display:none;width:42px;height:42px;border-radius:50%;border:1px solid var(--line-2);position:relative}
.burger span{position:absolute;left:13px;right:13px;height:1.5px;background:var(--text);transition:top .3s,transform .3s}
.burger span:nth-child(1){top:17px}.burger span:nth-child(2){top:24px}
.nav.open .burger span:nth-child(1){top:20px;transform:rotate(45deg)}
.nav.open .burger span:nth-child(2){top:20px;transform:rotate(-45deg)}
.mobile{display:none}

/* ---------- Hero ---------- */
.hero{position:relative;min-height:100svh;display:flex;align-items:flex-end;overflow:hidden;padding:calc(var(--announce-h) + 120px) 0 90px}
.hero-canvas{position:absolute;inset:0;width:100%;height:100%;display:block;-webkit-mask-image:linear-gradient(to bottom,#000 55%,transparent);mask-image:linear-gradient(to bottom,#000 55%,transparent)}
.hero-grain{position:absolute;inset:0;pointer-events:none;opacity:.14;mix-blend-mode:overlay;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E")}
.hero-grain{-webkit-mask-image:linear-gradient(to bottom,#000 50%,transparent);mask-image:linear-gradient(to bottom,#000 50%,transparent)}
.hero-content{position:relative;z-index:2;width:100%}
.hero h1{font-family:var(--display);font-weight:300;font-size:clamp(52px,8.6vw,136px);line-height:var(--lh-d);letter-spacing:var(--ls-d);margin:26px 0 48px;max-width:1150px}
.hero-bottom{display:flex;justify-content:space-between;align-items:flex-end;gap:40px;flex-wrap:wrap;padding-top:30px;border-top:1px solid var(--line-2)}
.hero-bottom p{font-size:19px;font-weight:300;color:var(--text-2);max-width:520px}
.scroll-cue{position:absolute;left:50%;bottom:26px;z-index:2;width:22px;height:36px;border:1px solid var(--line-2);border-radius:12px;transform:translateX(-50%)}
.scroll-cue span{position:absolute;left:50%;top:7px;width:2px;height:7px;border-radius:2px;background:var(--steel-300);transform:translateX(-50%);animation:cue 1.8s infinite}
@keyframes cue{0%{opacity:0;top:6px}40%{opacity:1}100%{opacity:0;top:20px}}

/* ---------- Hero slider (ảnh banner) ---------- */
.hero-media{position:absolute;inset:0;z-index:0;overflow:hidden;-webkit-mask-image:linear-gradient(to bottom,#000 80%,transparent);mask-image:linear-gradient(to bottom,#000 80%,transparent)}
.slides{position:absolute;inset:0}
.slide{position:absolute;inset:0;opacity:0;transition:opacity 1.3s ease}
.slide.active{opacity:1}
.slide img{--fx:1;width:100%;height:100%;object-fit:cover;transform:scaleX(var(--fx)) scale(1.03);transition:transform 10s linear;filter:saturate(.9) contrast(1.06)}
.slide img.flip{--fx:-1}
.slide.active img{transform:scaleX(var(--fx)) scale(1.13)}
/* Phủ tông xanh thương hiệu lên ảnh */
.slide::after{content:"";position:absolute;inset:0;background:linear-gradient(135deg,rgba(36,107,253,.42),rgba(10,42,122,.28) 60%,rgba(3,8,23,.2));mix-blend-mode:soft-light}
.hero-shade{position:absolute;inset:0;background:
  linear-gradient(90deg,rgba(3,8,23,.9) 0%,rgba(3,8,23,.72) 32%,rgba(3,8,23,.3) 58%,rgba(3,8,23,.05) 85%,transparent 100%),
  linear-gradient(to top,rgba(3,8,23,.85) 0%,rgba(3,8,23,.25) 32%,transparent 55%),
  linear-gradient(to bottom,rgba(3,8,23,.55),transparent 22%)}
.hero-ribbons{opacity:.5;mix-blend-mode:screen;-webkit-mask-image:linear-gradient(90deg,#000 0%,rgba(0,0,0,.6) 60%,transparent);mask-image:linear-gradient(90deg,#000 0%,rgba(0,0,0,.6) 60%,transparent)}
.hero-slider .hero-grain{opacity:.1}
.slide-text .swap>*{animation:swapIn .8s cubic-bezier(.2,.7,.2,1) both}
.slide-text .swap>*:nth-child(2){animation-delay:.08s}
.slide-text .swap>*:nth-child(3){animation-delay:.16s}
@keyframes swapIn{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:none}}
.hero-slider h1{font-size:clamp(46px,6.4vw,104px);margin:22px 0 36px;max-width:980px}
.slide-text h1{min-height:calc(2 * var(--lh-d) * 1em)}
.slider-nav{display:flex;justify-content:space-between;align-items:flex-end;gap:32px;margin-top:48px}
.slider-tabs{display:grid;grid-template-columns:repeat(5,1fr);gap:16px;flex:1;max-width:920px}
.s-tab{position:relative;text-align:left;padding-top:16px;font-size:13px;color:var(--text-2);display:flex;align-items:baseline;gap:8px;transition:color .3s}
.s-tab:hover,.s-tab.active{color:#fff}
.s-tab .bar{position:absolute;left:0;right:0;top:0;height:2px;border-radius:2px;background:rgba(220,232,255,.2);overflow:hidden}
.s-tab .bar i{position:absolute;inset:0;background:linear-gradient(90deg,#246BFD,#A7C4FF);transform:scaleX(0);transform-origin:left}
.s-tab.active .bar i{animation:barFill var(--dur,7000ms) linear forwards}
.hero.paused .s-tab.active .bar i{animation-play-state:paused}
@keyframes barFill{to{transform:scaleX(1)}}
.s-tab b{font-family:var(--mono);font-weight:400;font-size:11px;color:var(--steel-300)}
.s-label{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.slider-arrows{display:flex;gap:10px;flex:none}
.slider-arrows .arrow{background:rgba(3,8,23,.35);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px)}
@media (max-width:640px){
  .slider-nav{margin-top:34px;gap:16px}
  .slider-tabs{gap:8px}
  .s-tab{padding-top:12px}
  .s-tab b,.s-label{display:none}
  .slider-arrows .arrow{width:44px;height:44px}
  .hero-shade{background:linear-gradient(to top,rgba(3,8,23,.95) 0%,rgba(3,8,23,.72) 45%,rgba(3,8,23,.15) 80%,rgba(3,8,23,.35) 100%)}
  .slide-text h1{min-height:0}
}
@media (prefers-reduced-motion:reduce){
  .s-tab.active .bar i{transform:scaleX(1)}
}

/* ---------- Clients ---------- */
.clients{padding:100px 0 50px;text-align:center}
.clients-title{font-family:var(--display);font-size:clamp(20px,2vw,26px);font-weight:400;line-height:var(--lh-d2);letter-spacing:var(--ls-d2);color:var(--text);max-width:980px;margin:0 auto 40px;padding:0 16px;text-wrap:balance}
.provider-rows{display:grid;gap:16px}
.provider-rows .marquee-track{gap:16px;animation-duration:60s}
.provider-rows .marquee-track.reverse{animation-direction:reverse;animation-duration:70s}
.provider-rows .marquee-track{animation-name:mq3}
@keyframes mq3{to{transform:translateX(-33.3333%)}}
.provider-rows .marquee:hover .marquee-track{animation-play-state:paused}
.provider{position:relative;height:88px;padding:0 34px;border-radius:18px;display:flex;align-items:center;gap:12px;flex:none;
  background:linear-gradient(145deg,rgba(70,115,225,.38) 0%,rgba(16,38,96,.62) 40%,rgba(44,86,190,.34) 60%,rgba(10,24,64,.7) 100%);
  box-shadow:inset 0 1px 0 rgba(220,232,255,.18),0 18px 40px -24px rgba(36,107,253,.8);transition:transform .35s cubic-bezier(.2,.7,.2,1),box-shadow .35s}
.provider::before{content:"";position:absolute;inset:0;border-radius:inherit;padding:1px;background:var(--chrome-soft);-webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);-webkit-mask-composite:xor;mask-composite:exclude;pointer-events:none}
.provider:hover{transform:translateY(-3px);box-shadow:inset 0 1px 0 rgba(220,232,255,.28),0 22px 48px -20px rgba(36,107,253,1)}
.provider .p-icon{height:32px;width:auto}
.provider .p-text{height:24px;width:auto}
.marquee{overflow:hidden;mask-image:linear-gradient(90deg,transparent,#000 12%,#000 88%,transparent);-webkit-mask-image:linear-gradient(90deg,transparent,#000 12%,#000 88%,transparent)}
.marquee-track{display:flex;gap:16px;width:max-content;animation:mq 50s linear infinite}
.marquee:hover .marquee-track{animation-play-state:paused}
.client{width:180px;height:68px;border-radius:14px;border:1px solid var(--line);display:grid;place-items:center;font-family:var(--mono);font-size:11px;letter-spacing:.22em;color:rgba(170,185,215,.35)}
@keyframes mq{to{transform:translateX(-50%)}}

/* ---------- Sections ---------- */
.sec{padding:130px 0}
.sec-head{display:flex;justify-content:space-between;align-items:flex-end;gap:32px;margin-bottom:56px}

/* ---------- Stories rail ---------- */
.arrows{display:flex;gap:10px;flex:none}
.arrow{width:52px;height:52px;border-radius:50%;border:1px solid var(--line-2);font-size:18px;transition:all .25s}
.arrow:hover{background:var(--chrome);background-size:200% 100%;color:#fff;border-color:transparent}
.arrow:disabled{opacity:.3;pointer-events:none}
.rail{display:flex;gap:18px;overflow-x:auto;scroll-snap-type:x mandatory;scroll-behavior:smooth;padding:0 max(40px,calc((100vw - var(--wrap))/2 + 40px)) 10px;scrollbar-width:none}
.rail::-webkit-scrollbar{display:none}
.story{flex:0 0 clamp(290px,28vw,400px);aspect-ratio:4/5;scroll-snap-align:start;scroll-margin-left:max(40px,calc((100vw - var(--wrap))/2 + 40px));border-radius:var(--r);overflow:hidden;position:relative;display:flex;flex-direction:column;justify-content:space-between;padding:26px;isolation:isolate}
.story-art{position:absolute;inset:0;z-index:-1;transition:transform 1s cubic-bezier(.2,.7,.2,1)}
.story-art svg,.story-art img{width:100%;height:100%;display:block}
.story-art img{object-fit:cover;filter:saturate(.92) contrast(1.05)}
/* Tông xanh thương hiệu phủ nhẹ lên ảnh, rõ dần khi rê chuột thì nhạt đi */
.story-art::after{content:"";position:absolute;inset:0;background:linear-gradient(160deg,rgba(36,107,253,.38),rgba(10,42,122,.18) 55%,transparent);mix-blend-mode:soft-light;transition:opacity .6s}
.story:hover .story-art::after{opacity:.4}
.story:hover .story-art{transform:scale(1.06)}
.story::after{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(180deg,rgba(3,8,23,.35) 0%,rgba(3,8,23,0) 26%,rgba(3,8,23,.25) 48%,rgba(3,8,23,.92) 100%)}
.story-top{display:flex;justify-content:space-between;align-items:flex-start}
.story-tag{font-family:var(--label);font-weight:500;font-size:var(--fs-label);letter-spacing:var(--ls-label);text-transform:uppercase;padding:6px 10px;border-radius:999px;background:rgba(3,8,23,.45);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);border:1px solid var(--line-2)}
.story-go{width:44px;height:44px;border-radius:50%;display:grid;place-items:center;background:rgba(3,8,23,.45);border:1px solid var(--line-2);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);font-size:17px;transition:all .35s}
.story:hover .story-go{background:var(--chrome);background-size:200% 100%;color:#fff;border-color:transparent;transform:rotate(45deg)}
.story-stat{font-family:var(--display);font-size:56px;font-weight:300;letter-spacing:-.05em;line-height:1}
.story-stat small{display:block;font-family:var(--sans);font-size:13px;color:var(--text-2);letter-spacing:0;margin-top:6px}
.story h3{font-family:var(--display);font-size:22px;font-weight:400;line-height:var(--lh-d2);letter-spacing:var(--ls-d2);margin-top:18px}

/* ---------- Statement + lattice ---------- */
.statement{padding-top:90px}
.statement-text{font-family:var(--display);font-weight:300;font-size:clamp(30px,3.9vw,56px);line-height:var(--lh-d2);letter-spacing:var(--ls-d);max-width:1120px}
.statement-text .w{opacity:.18;transition:opacity .5s}
.statement-text .w.on{opacity:1}
.statement-text em.metal{background:none;animation:none;color:inherit}
.lattice{margin-top:80px;display:grid;grid-template-columns:repeat(5,1fr);gap:12px}
/* Ô module có ảnh: bình thường chìm dưới lớp xanh tối, khi sáng/hover thì ảnh hiện rõ */
.cell{height:168px;border-radius:18px;position:relative;overflow:hidden;isolation:isolate;display:flex;align-items:flex-end;justify-content:flex-start;padding:14px 16px;font-family:var(--label);font-weight:500;font-size:14px;color:rgba(234,240,255,.78);box-shadow:inset 0 0 0 1px var(--line);transition:color .6s,box-shadow .6s}
.cell img{position:absolute;inset:0;z-index:-2;width:100%;height:100%;object-fit:cover;filter:grayscale(.4) saturate(.85) brightness(.8);transform:scale(1.04);transition:filter .9s ease,transform 1.6s cubic-bezier(.2,.7,.2,1)}
.cell::before{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(160deg,rgba(10,26,66,.62),rgba(3,8,23,.78)),linear-gradient(0deg,rgba(36,107,253,.28),transparent);transition:opacity .9s ease}
.cell::after{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(to top,rgba(3,8,23,.85),transparent 60%);opacity:0;transition:opacity .9s ease}
.cell.lit,.cell:hover{color:#fff;box-shadow:inset 0 0 0 1px rgba(127,168,255,.55),0 16px 40px -18px rgba(36,107,253,.9)}
.cell.lit img,.cell:hover img{filter:none;transform:scale(1.12)}
.cell.lit::before,.cell:hover::before{opacity:.15}
.cell.lit::after,.cell:hover::after{opacity:1}
.cell span{position:relative}

/* ---------- Platform ---------- */
.platform .h2{margin-bottom:56px}
.os-card{display:grid;grid-template-columns:1fr 1.1fr;min-height:520px;overflow:hidden}
.os-text{padding:56px;display:flex;flex-direction:column;justify-content:flex-end;gap:18px}
.os-text h3{font-family:var(--display);font-weight:300;font-size:clamp(32px,3.2vw,46px);line-height:var(--lh-d);letter-spacing:var(--ls-d)}
.os-text p{color:var(--text-2);font-weight:300;font-size:17px;max-width:460px;margin-bottom:10px}
.os-text .btn{align-self:flex-start}
.os-visual{position:relative;min-height:540px;background:radial-gradient(circle at 50% 50%,rgba(36,107,253,.3),transparent 60%);overflow:hidden}
.os-core{position:absolute;left:50%;top:50%;width:150px;height:150px;margin:-75px 0 0 -75px;border-radius:50%;background:var(--chrome);background-size:240% 240%;display:grid;place-items:center;box-shadow:0 0 80px rgba(127,168,255,.45),inset 0 2px 0 rgba(255,255,255,.7);z-index:2}
.os-core span{font-family:var(--display);font-weight:600;font-size:15px;color:#fff;letter-spacing:var(--ls-d2)}
.os-core{flex-direction:column;gap:6px;display:flex;align-items:center;justify-content:center}
.os-core img{width:44px;height:44px;border-radius:50%;box-shadow:0 4px 14px rgba(6,16,51,.4)}
.os-orbit{position:absolute;left:50%;top:50%;border-radius:50%;border:1px solid var(--line-2);transform:translate(-50%,-50%)}
.o1{width:280px;height:280px}.o2{width:420px;height:420px;border-style:dashed;opacity:.7}.o3{width:560px;height:560px;opacity:.5}
.os-nodes{position:absolute;inset:0}
.os-node{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%)}
.os-node-in{display:flex;flex-direction:column;align-items:center;gap:8px}
.os-node img{width:68px;height:68px;border-radius:50%;object-fit:cover;display:block;padding:3px;background:var(--chrome);background-size:220% 100%;box-shadow:0 10px 28px -8px rgba(36,107,253,.75);filter:saturate(.9);transition:transform .35s cubic-bezier(.2,.7,.2,1),filter .35s,box-shadow .35s}
.os-node span{font-size:12px;font-weight:500;padding:4px 10px;border-radius:999px;background:rgba(6,17,46,.88);border:1px solid var(--line-2);color:var(--text);white-space:nowrap;backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px)}
.os-node:hover img{transform:scale(1.12);filter:saturate(1.1) brightness(1.08);box-shadow:0 14px 34px -8px rgba(127,168,255,.9)}
@keyframes rot{to{transform:rotate(360deg)}}
.duo{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:18px}
.duo-card{padding:40px;display:flex;flex-direction:column;gap:14px;min-height:500px;transition:transform .45s cubic-bezier(.2,.7,.2,1)}
.duo-card:hover{transform:translateY(-6px)}
.duo-art{flex:1;display:grid;place-items:center;margin-bottom:10px}
.duo-art svg{width:100%;max-width:400px;height:auto}
.spin{transform-origin:200px 110px;animation:rot 26s linear infinite}
.duo-card h3{font-family:var(--display);font-weight:300;font-size:32px;line-height:var(--lh-d);letter-spacing:var(--ls-d)}
.duo-card p{color:var(--text-2);font-weight:300;max-width:440px}

/* ---------- Industries ---------- */
.industries .h2{margin-bottom:44px}
.tabs{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:22px}
.tab{height:44px;padding:0 20px;border-radius:999px;border:1px solid var(--line-2);font-size:15px;color:var(--text-2);transition:all .25s}
.tab:hover{color:#fff;border-color:var(--steel-300)}
.tab[aria-selected="true"]{background:var(--chrome);background-size:220% 100%;color:#fff;border-color:transparent}
.ind-card{position:relative;border-radius:28px;overflow:hidden;min-height:560px;display:flex;align-items:flex-end;isolation:isolate}
.ind-bg{position:absolute;inset:0;z-index:-2}
.ind-bg svg{width:100%;height:100%}
.ind-card::after{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(90deg,rgba(3,8,23,.92) 0%,rgba(3,8,23,.55) 50%,rgba(3,8,23,.1) 100%)}
.ind-content{padding:56px;max-width:720px}
.ind-content h3{font-family:var(--display);font-weight:300;font-size:clamp(34px,4vw,60px);line-height:var(--lh-d);letter-spacing:var(--ls-d);margin:16px 0 18px}
.ind-content p{color:var(--text-2);font-weight:300;font-size:17px;max-width:520px}
.ind-uses{display:flex;flex-wrap:wrap;gap:8px;margin:24px 0 30px}
.ind-uses span{font-size:13px;padding:7px 14px;border-radius:999px;border:1px solid var(--line-2);background:rgba(3,8,23,.4);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px)}
.fade{animation:fd .6s ease}
@keyframes fd{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}

/* ---------- Team ---------- */
.team-grid{display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:center}
.team-text .lead{margin:26px 0 36px}
.team-visual{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}
.tile{aspect-ratio:1;border-radius:16px;background:linear-gradient(160deg,var(--deep-3),var(--deep-2));border:1px solid var(--line);position:relative;overflow:hidden}
.tile::after{content:"";position:absolute;inset:0;background:var(--chrome);background-size:300% 300%;opacity:0;transition:opacity .7s;mix-blend-mode:screen}
.tile.lit::after{opacity:.5}
.tile.a{background:linear-gradient(160deg,#1A56D6,#0A2A7A)}
.tile.b{background:linear-gradient(160deg,#7FA8FF,#1F5FE6)}
.tile.big{grid-column:span 2;grid-row:span 2;aspect-ratio:auto;display:flex;flex-direction:column;justify-content:flex-end;padding:24px}
.tile.big b{font-family:var(--display);font-weight:300;font-size:clamp(28px,2.6vw,40px);letter-spacing:-.04em;line-height:1.05;position:relative;z-index:1}
.tile.big small{position:relative;z-index:1;color:var(--text-2);font-size:13px;margin-top:8px;font-family:var(--label);font-weight:500;letter-spacing:var(--ls-label);text-transform:uppercase}
/* Ô ảnh đội ngũ */
.tile img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform 1.2s cubic-bezier(.2,.7,.2,1),filter .6s;filter:saturate(.9)}
.tile.photo::before{content:"";position:absolute;inset:0;z-index:1;background:linear-gradient(160deg,rgba(36,107,253,.28),rgba(10,42,122,.12) 60%,transparent);mix-blend-mode:soft-light;pointer-events:none}
.tile.photo:hover img{transform:scale(1.08);filter:saturate(1.05)}
.tile.big img{z-index:0}
.tile.big::after{content:"";position:absolute;inset:0;z-index:0;opacity:1;background:linear-gradient(to top,rgba(3,8,23,.88) 0%,rgba(3,8,23,.35) 50%,rgba(3,8,23,.1) 100%);mix-blend-mode:normal}
.tile.big:hover img{transform:scale(1.05)}
.tile.big b{color:#fff}
.tile.big small{color:#C8D4EE}

/* ---------- Footer ---------- */
.footer{padding:120px 0 36px;border-top:1px solid var(--line);position:relative;overflow:hidden}
.footer::before{content:"";position:absolute;width:1000px;height:700px;left:50%;top:-300px;transform:translateX(-50%);background:radial-gradient(ellipse,rgba(36,107,253,.22),transparent 65%);pointer-events:none}
.foot-cta{position:relative;display:flex;justify-content:space-between;align-items:flex-end;gap:40px;flex-wrap:wrap;padding-bottom:90px;border-bottom:1px solid var(--line)}
.foot-cta h2{font-family:var(--display);font-weight:300;font-size:clamp(40px,6vw,92px);line-height:var(--lh-d);letter-spacing:var(--ls-d);max-width:900px}
.foot-cols{display:grid;grid-template-columns:repeat(6,1fr);gap:32px;padding:64px 0}
.foot-cols h6{font-family:var(--label);font-weight:500;font-size:var(--fs-label);font-weight:400;letter-spacing:var(--ls-label);text-transform:uppercase;color:var(--muted);margin-bottom:18px}
.foot-cols a{display:block;font-size:14px;color:var(--text-2);padding:5px 0;transition:color .2s}
.foot-cols a:hover{color:#fff}
.foot-bottom{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;margin-top:0;padding-top:24px;border-top:1px solid var(--line);font-size:13px;color:var(--muted)}

/* =========================================================
   TRANG CON
   ========================================================= */
/* Nav active */
.menu-btn{position:relative}
.menu-item.active>.menu-btn{color:#fff}
.menu-item.active>.menu-btn::after{content:"";position:absolute;left:50%;bottom:2px;width:4px;height:4px;margin-left:-2px;border-radius:50%;background:var(--steel-300);box-shadow:0 0 8px var(--steel-300)}
.mobile details.active summary,.mobile-link.active{color:var(--steel-300)}

/* Page hero */
.page-hero{position:relative;min-height:min(88vh,860px);display:flex;align-items:flex-end;overflow:hidden;padding:calc(var(--announce-h) + 150px) 0 80px}
.page-hero-inner{position:relative;z-index:2;width:100%}
.page-hero h1{font-family:var(--display);font-weight:300;font-size:clamp(44px,6.6vw,104px);line-height:var(--lh-d);letter-spacing:var(--ls-d);margin:24px 0 44px;max-width:1150px}
.page-hero-bottom{display:flex;justify-content:space-between;align-items:flex-end;gap:32px;flex-wrap:wrap;padding-top:28px;border-top:1px solid var(--line-2)}
.page-top{padding-top:calc(var(--announce-h) + 112px)}

/* Khối chung */
.band{position:relative;isolation:isolate}
.band::before{content:"";position:absolute;inset:0;z-index:-1;pointer-events:none;
  background:linear-gradient(115deg,rgba(12,30,80,.55) 0%,rgba(36,107,253,.20) 30%,rgba(190,212,255,.13) 46%,rgba(36,107,253,.20) 60%,rgba(12,30,80,.55) 100%);
  background-size:200% 100%;
  -webkit-mask-image:linear-gradient(transparent,#000 14%,#000 86%,transparent);mask-image:linear-gradient(transparent,#000 14%,#000 86%,transparent)}
.sec-intro{display:grid;gap:20px;max-width:860px;margin-bottom:64px}
.sub-title{font-family:var(--label);font-weight:500;font-size:12px;letter-spacing:var(--ls-label);text-transform:uppercase;color:var(--muted);font-weight:400;margin:90px 0 20px}
.h3{font-family:var(--display);font-weight:300;font-size:clamp(28px,3vw,44px);line-height:var(--lh-d);letter-spacing:var(--ls-d);margin-bottom:36px;max-width:820px}
.cards-3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:32px}
.split{display:grid;grid-template-columns:1fr 1.1fr;gap:80px;align-items:start}
.split-head{position:sticky;top:120px}
.info-card{padding:34px;display:flex;flex-direction:column;gap:12px;min-height:240px;transition:transform .45s cubic-bezier(.2,.7,.2,1)}
.info-card:hover{transform:translateY(-5px)}
.info-card h3{font-family:var(--display);font-weight:400;font-size:24px;line-height:var(--lh-d2);letter-spacing:var(--ls-d2);margin-top:auto}
.info-card p{color:var(--text-2);font-weight:300;font-size:15px}
.info-k{font-family:var(--label);font-weight:500;font-size:var(--fs-label);letter-spacing:var(--ls-label);text-transform:uppercase;color:var(--steel-300)}
.dash-list{list-style:none;display:grid;gap:12px;margin-top:26px}
.dash-list li{display:flex;gap:14px;font-size:15px;color:var(--text)}
.dash-list li::before{content:"";width:16px;height:1px;background:var(--chrome);margin-top:11px;flex:none}
.num-list{list-style:none}
.num-list li{display:grid;grid-template-columns:64px 1fr;gap:10px;padding:28px 0;border-top:1px solid var(--line)}
.num-list li:last-child{border-bottom:1px solid var(--line)}
.num-n{font-family:var(--mono);font-size:13px;color:var(--steel-300);padding-top:6px}
.num-list h4{font-family:var(--display);font-weight:400;font-size:24px;letter-spacing:var(--ls-d2);margin-bottom:8px}
.num-list p{color:var(--text-2);font-weight:300}
.ico{width:44px;height:44px;border-radius:12px;border:1px solid var(--line-2);display:grid;place-items:center;color:var(--steel-300);background:rgba(127,168,255,.06)}
.ico svg{width:20px;height:20px}
.ent-item{display:flex;flex-direction:column;gap:12px}
.ent-item h4{font-family:var(--display);font-weight:400;font-size:20px;letter-spacing:var(--ls-d2);margin-top:8px}
.ent-item p{color:var(--text-2);font-weight:300;font-size:15px}
.grid-3 .ent-item{padding:30px}
.ent-box{padding:64px}
.center{text-align:center;margin-top:48px}
.muted-note{color:var(--muted);font-size:14px}

/* Platform: lớp hạ tầng */
.layers{display:grid;grid-template-columns:.9fr 1.1fr;gap:28px;align-items:stretch}
.stack{display:flex;flex-direction:column;gap:10px;justify-content:center}
.plate{display:flex;align-items:center;gap:18px;height:62px;padding:0 22px;margin-left:calc(var(--i) * 12px);margin-right:calc((6 - var(--i)) * 12px);border-radius:14px;border:1px solid var(--line-2);background:linear-gradient(90deg,rgba(16,38,86,.7),rgba(6,17,46,.5));text-align:left;color:var(--text-2);transition:all .35s cubic-bezier(.2,.7,.2,1)}
.plate:hover{color:#fff;border-color:var(--steel-300)}
.plate[aria-selected="true"]{color:#fff;background:var(--chrome);background-size:220% 100%;border-color:transparent;box-shadow:0 14px 40px -14px rgba(127,168,255,.7)}
.plate-n{font-family:var(--mono);font-size:11px;opacity:.7}
.plate-name{font-family:var(--display);font-size:18px;letter-spacing:var(--ls-d2)}
.layer-panel{padding:48px;min-height:460px;display:flex;flex-direction:column;justify-content:center}
.layer-panel h3{font-family:var(--display);font-weight:300;font-size:clamp(30px,3vw,42px);letter-spacing:var(--ls-d);line-height:var(--lh-d);margin:18px 0 14px}
.layer-panel p{color:var(--text-2);font-weight:300;font-size:17px;max-width:520px}

/* Platform: sản phẩm */
.prod-card{overflow:hidden;display:flex;flex-direction:column;transition:transform .45s cubic-bezier(.2,.7,.2,1);scroll-margin-top:120px}
.prod-card:hover{transform:translateY(-6px)}
.prod-art{height:240px;overflow:hidden}
.prod-art svg{width:100%;height:100%;transition:transform 1s cubic-bezier(.2,.7,.2,1)}
.prod-card:hover .prod-art svg{transform:scale(1.06)}
.prod-body{padding:30px;display:flex;flex-direction:column;gap:12px;flex:1}
.prod-body h3{font-family:var(--display);font-weight:400;font-size:26px;letter-spacing:var(--ls-d2)}
.prod-body p{color:var(--text-2);font-weight:300;font-size:15px;flex:1}

/* Timeline triển khai */
.timeline{display:grid;grid-template-columns:repeat(4,1fr);position:relative}
.timeline::before{content:"";position:absolute;left:0;right:0;top:9px;height:1px;background:var(--line-2)}
.timeline .bar{position:absolute;left:0;top:9px;height:1px;width:0;background:var(--chrome);transition:width 2.2s cubic-bezier(.2,.7,.2,1)}
.timeline.on .bar{width:100%}
.step{padding-right:32px;position:relative}
.step .pin{width:19px;height:19px;border-radius:50%;background:var(--abyss);border:1px solid var(--steel-300);position:relative;z-index:1}
.step .pin::after{content:"";position:absolute;inset:4px;border-radius:50%;background:var(--steel-300);box-shadow:0 0 10px var(--steel-300);transform:scale(0);transition:transform .4s}
.timeline.on .step .pin::after{transform:scale(1)}
.timeline.on .step:nth-child(3) .pin::after{transition-delay:.5s}
.timeline.on .step:nth-child(4) .pin::after{transition-delay:1s}
.timeline.on .step:nth-child(5) .pin::after{transition-delay:1.5s}
.step .when{font-family:var(--label);font-weight:500;font-size:12px;letter-spacing:var(--ls-label);color:var(--steel-300);margin:26px 0 10px}
.step h4{font-family:var(--display);font-weight:400;font-size:24px;letter-spacing:var(--ls-d2);margin-bottom:10px}
.step p{color:var(--text-2);font-weight:300;font-size:15px}
.roles{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.role{padding:22px 24px}
.role b{display:block;font-weight:500;margin-bottom:4px}
.role span{color:var(--muted);font-size:14px}

/* Industries */
.ind-grid{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-left:1px solid var(--line)}
.ind-tile{border-right:1px solid var(--line);border-bottom:1px solid var(--line);padding:32px;min-height:250px;display:flex;flex-direction:column;position:relative;overflow:hidden;isolation:isolate}
.ind-tile::before{content:"";position:absolute;inset:0;z-index:-1;background:radial-gradient(circle at 80% 0%,rgba(36,107,253,.4),transparent 60%),linear-gradient(180deg,rgba(16,38,86,.9),rgba(6,17,46,.9));transform:translateY(101%);transition:transform .55s cubic-bezier(.7,0,.2,1)}
.ind-tile:hover::before{transform:none}
.ind-tile-top{display:flex;justify-content:space-between;align-items:flex-start}
.ind-tile .go{font-size:20px;color:var(--muted);transition:transform .4s,color .4s}
.ind-tile:hover .go{transform:rotate(-45deg);color:var(--steel-300)}
.ind-tile h3{font-family:var(--display);font-weight:400;font-size:26px;letter-spacing:var(--ls-d2);margin-top:auto}
.ind-tile p{color:var(--text-2);font-size:14px;margin-top:6px}
.subnav{position:sticky;top:72px;z-index:40;padding:14px 0;background:rgba(3,8,23,.78);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.subnav .tabs{margin:0}
.tab{display:inline-flex;align-items:center}
.detail{padding:50px 0 130px}
.block{margin-top:110px}
.block .h2{margin-bottom:44px}
.flows{display:grid;grid-template-columns:1fr 1fr;gap:0 48px}
.flow{display:grid;grid-template-columns:70px 1fr;gap:10px;padding:32px 0;border-top:1px solid var(--line)}
.flow-n{font-family:var(--display);font-weight:300;font-size:34px;letter-spacing:-.04em;line-height:1}
.flow h3{font-family:var(--display);font-weight:400;font-size:24px;letter-spacing:var(--ls-d2);margin-bottom:8px}
.flow p{color:var(--text-2);font-weight:300}
.why{padding:56px}
.why .split-head{top:150px}

/* Company */
.story-copy{display:grid;gap:26px;padding-top:40px}
.big-p{font-family:var(--display);font-weight:300;font-size:clamp(24px,2.4vw,34px);line-height:var(--lh-d2);letter-spacing:var(--ls-d2)}
.values{display:grid;grid-template-columns:repeat(5,1fr);gap:24px;margin-top:70px}
.value{padding-top:22px;border-top:1px solid var(--line-2);display:grid;gap:10px;align-content:start}
.value h4{font-family:var(--display);font-weight:400;font-size:21px;letter-spacing:var(--ls-d2)}
.value p{color:var(--text-2);font-weight:300;font-size:14px}
.leaders{display:grid;grid-template-columns:repeat(3,1fr);gap:28px 18px}
.leader{display:grid;gap:4px}
.leader-photo{aspect-ratio:4/3;border-radius:20px;margin-bottom:14px;display:grid;place-items:center;background:radial-gradient(circle at 70% 20%,rgba(127,168,255,.35),transparent 60%),linear-gradient(160deg,var(--deep-3),var(--deep));border:1px solid var(--line)}
.leader-photo span{font-family:var(--display);font-weight:600;font-size:42px;letter-spacing:-.05em;opacity:.5}
.leader b{font-weight:500;font-size:17px;color:var(--muted)}
.leader span{color:var(--text-2);font-size:14px}
.careers-box{padding:64px}
.jobs{border-top:1px solid var(--line)}
.job{display:grid;grid-template-columns:2fr 1fr 1fr auto;gap:20px;align-items:center;padding:22px 8px;border-bottom:1px solid var(--line);transition:background .3s,padding .3s}
.job:hover{background:rgba(127,168,255,.05);padding-left:18px}
.job h4{font-family:var(--display);font-weight:400;font-size:20px;letter-spacing:var(--ls-d2)}
.job>span{color:var(--text-2);font-size:14px}

/* Blog */
.posts{display:grid;grid-template-columns:repeat(3,1fr);gap:40px 24px;margin-top:40px}
.post{display:block}
.post-art{aspect-ratio:16/10;border-radius:18px;overflow:hidden;border:1px solid var(--line)}
.post-art svg,.post-art img{width:100%;height:100%;object-fit:cover;display:block;transition:transform 1s cubic-bezier(.2,.7,.2,1)}
.post:hover .post-art img{transform:scale(1.06)}
.post:hover .post-art svg{transform:scale(1.06)}
.post-meta{display:flex;gap:16px;flex-wrap:wrap;font-family:var(--label);font-weight:500;font-size:var(--fs-label);letter-spacing:var(--ls-label);text-transform:uppercase;color:var(--muted);margin:18px 0 8px}
.post-meta span:first-child{color:var(--steel-300)}
.post h3{font-family:var(--display);font-weight:400;font-size:21px;line-height:var(--lh-d2);letter-spacing:var(--ls-d2);transition:color .25s}
.post:hover h3{color:var(--steel-100)}
.featured{display:grid;grid-template-columns:1.25fr 1fr;overflow:hidden;min-height:460px}
.featured-art{overflow:hidden;min-height:300px}
.featured-art svg,.featured-art img{width:100%;height:100%;object-fit:cover;display:block;transition:transform 1.2s cubic-bezier(.2,.7,.2,1)}
.featured:hover .featured-art img{transform:scale(1.04)}
.featured:hover .featured-art svg{transform:scale(1.04)}
.featured-body{padding:52px;display:flex;flex-direction:column;justify-content:center;gap:16px}
.featured-body .post-meta{margin:0}
.featured-body h2{font-family:var(--display);font-weight:300;font-size:clamp(30px,3.2vw,46px);line-height:var(--lh-d);letter-spacing:var(--ls-d)}
.featured-body p{color:var(--text-2);font-weight:300}
.blog-head{margin-bottom:30px}
.empty{color:var(--muted);text-align:center;padding:60px 0}

/* Contact */
.contact-page{position:relative;overflow:hidden;padding:calc(var(--announce-h) + 140px) 0 110px}
.contact-canvas{position:absolute;left:0;top:0;width:100%;height:85%;display:block;opacity:.9;-webkit-mask-image:linear-gradient(to bottom,#000 35%,transparent);mask-image:linear-gradient(to bottom,#000 35%,transparent)}
.contact-grid{position:relative;z-index:2;display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:start}
.contact-info h1{font-family:var(--display);font-weight:300;font-size:clamp(42px,5.4vw,82px);line-height:var(--lh-d);letter-spacing:var(--ls-d);margin:24px 0 26px}
.contact-list{display:grid;gap:22px;margin-top:52px;padding-top:30px;border-top:1px solid var(--line-2)}
.contact-list dt{font-family:var(--label);font-weight:500;font-size:var(--fs-label);letter-spacing:var(--ls-label);text-transform:uppercase;color:var(--muted);margin-bottom:4px}
.contact-list dd a{color:var(--steel-100);border-bottom:1px solid rgba(220,231,255,.3)}
.contact-list dd a:hover{color:#fff;border-color:#fff}
.form-card{padding:40px;background:linear-gradient(180deg,rgba(10,26,66,.88),rgba(6,17,46,.92));backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px)}
.form-card h2{font-family:var(--display);font-weight:400;font-size:28px;letter-spacing:var(--ls-d2)}
.form-sub{color:var(--text-2);font-size:15px;margin:6px 0 28px}
.fields{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{display:grid;gap:7px;font-size:13px;color:var(--text-2)}
.field.full{grid-column:1/-1}
.field input,.field select,.field textarea{width:100%;height:48px;padding:0 14px;border-radius:12px;border:1px solid var(--line-2);background-color:rgba(3,8,23,.55);color:var(--text);font:inherit;font-size:15px;transition:border-color .2s,box-shadow .2s;appearance:none;-webkit-appearance:none}
.field textarea{height:auto;padding:12px 14px;resize:vertical}
.field select{background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath d='M2 4l4 4 4-4' stroke='%237FA8FF' fill='none' stroke-width='1.5'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 14px center;padding-right:36px}
.field select:invalid{color:var(--muted)}
.field select option{background:#06112E;color:var(--text)}
.field :is(input,select,textarea):focus{outline:none;border-color:var(--steel-300);box-shadow:0 0 0 3px rgba(127,168,255,.15)}
.field.invalid :is(input,select,textarea){border-color:#FF8A8A}
.err{color:#FF9D9D;font-size:12px}
.privacy{font-size:12px;color:var(--muted);margin:22px 0}
.privacy a{text-decoration:underline}
.form-error{color:#FF9D9D;font-size:14px;margin-bottom:14px}
.form-done{text-align:center;padding:40px 10px;display:grid;justify-items:center;gap:14px}
.form-done[hidden],form[hidden]{display:none}
.form-done p{color:var(--text-2);max-width:380px}
.done-icon{font-size:64px;line-height:1}
body[data-page="contact"] .foot-cta{display:none}
body[data-page="contact"] .footer{padding-top:60px}
body[data-page="contact"] .foot-cols{padding-top:0}

@media (max-width:1080px){
  .layers,.split,.contact-grid,.featured{grid-template-columns:1fr}
  .split{gap:40px}
  .split-head{position:static}
  .cards-3,.grid-3,.grid-4,.roles,.ind-grid,.posts{grid-template-columns:1fr 1fr}
  .values{grid-template-columns:repeat(3,1fr)}
  .timeline{grid-template-columns:1fr 1fr;row-gap:50px}
  .timeline::before,.timeline .bar{display:none}
  .plate{margin-left:0;margin-right:0}
  .ent-box,.careers-box,.why{padding:40px}
  .subnav .tabs{flex-wrap:nowrap;overflow-x:auto;scrollbar-width:none}
  .tab{flex:none}
}
@media (max-width:640px){
  .page-hero{padding-bottom:60px;min-height:auto;padding-top:calc(var(--announce-h) + 130px)}
  .page-hero h1{margin-bottom:30px}
  .cards-3,.grid-3,.grid-4,.roles,.values,.leaders,.timeline,.ind-grid,.posts,.flows,.fields{grid-template-columns:1fr}
  .flows{gap:0}
  .layer-panel,.form-card,.featured-body,.ent-box,.careers-box,.why{padding:26px}
  .job{grid-template-columns:1fr auto;gap:6px 16px}
  .job h4{grid-column:1/-1}
  .job>span:nth-of-type(2){display:none}
  .block{margin-top:80px}
  .contact-page{padding-top:calc(var(--announce-h) + 110px)}
  .page-top{padding-top:calc(var(--announce-h) + 96px)}
  .subnav .tabs{margin-right:-16px;padding-right:16px}
  .ind-tile{min-height:170px;padding:24px}
}


/* =========================================================
   PHẦN NỀN SÁNG ÁNH KIM (.light) — tạo nhịp sáng/tối
   ========================================================= */
.light{--text:#0B1736;--text-2:#3E4C6E;--muted:#56647F;--line:rgba(11,35,90,.12);--line-2:rgba(11,35,90,.2);--steel-300:#1A56D6;--accent-text:#1A56D6;
  position:relative;isolation:isolate;color:var(--text);
  background:linear-gradient(125deg,#E6ECF9 0%,#F7F9FE 26%,#D9E3F6 42%,#F3F6FD 58%,#E1E9F8 78%,#F6F8FE 100%)}
.light::before{content:"";position:absolute;inset:0;z-index:-1;pointer-events:none;
  background:linear-gradient(105deg,transparent 40%,rgba(255,255,255,.7) 50%,transparent 60%),repeating-linear-gradient(90deg,rgba(11,35,90,.018) 0 1px,transparent 1px 3px)}
.light .btn-glass{background:rgba(255,255,255,.7);border-color:var(--line-2);color:var(--text)}
.light .btn-glass:hover{border-color:#1A56D6}
.light .arrow{color:var(--text);border-color:var(--line-2);background:rgba(255,255,255,.65)}
.light .tab{color:var(--text-2);background:rgba(255,255,255,.6)}
.light .tab:hover{color:var(--text);border-color:#1A56D6}
.light .tab[aria-selected="true"]{background:var(--chrome);background-size:220% 100%;color:#fff;border-color:transparent}
.light .link:hover{color:var(--text)}
.light .mcard{background:linear-gradient(145deg,#FFFFFF 0%,#EEF3FF 45%,#F9FBFF 60%,#E6EDFB 100%);box-shadow:0 24px 50px -32px rgba(11,35,90,.45)}
.light .mcard::before{background:linear-gradient(135deg,rgba(26,86,214,.4),rgba(26,86,214,.06) 40%,rgba(26,86,214,.04) 60%,rgba(26,86,214,.32))}
.light .mcard::after{background:linear-gradient(105deg,transparent 35%,rgba(255,255,255,.7) 50%,transparent 65%);background-size:260% 100%;background-position:130% 0}
/* Bề mặt tối nằm trong phần sáng (ảnh, thẻ ngành…) giữ bảng màu tối */
.story,.ind-card,.leader-photo{--text:#EAF0FF;--text-2:#C8D4EE;--muted:#A9B8D9;--line:rgba(150,180,255,.14);--line-2:rgba(150,180,255,.26);--steel-300:#7FA8FF;--accent-text:#8FB3FF;color:var(--text)}

/* ---------- Tắt hiệu ứng chuyển động (nút ở footer) ---------- */
html.no-motion *,html.no-motion *::before,html.no-motion *::after{animation:none!important}
html.no-motion .slide img{transition:none!important}
.motion-toggle{display:inline-flex;align-items:center;gap:8px;height:34px;padding:0 14px;border-radius:999px;border:1px solid var(--line-2);font-size:12px;color:var(--text-2)}
.motion-toggle:hover{color:var(--text);border-color:var(--steel-300)}
.foot-bottom .foot-right{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.hero.stopped .s-tab.active .bar i{animation-play-state:paused}
/* Đã tắt hiệu ứng nhưng người dùng tự bấm Phát → slide vẫn chạy */
html.no-motion .hero.playing:not(.stopped) .s-tab.active .bar i{animation:barFill var(--dur,7000ms) linear forwards!important}

/* =========================================================
   TRANG NỘI DUNG DÙNG CHUNG (generic.js)
   ========================================================= */
.page-hero.has-img{min-height:min(84vh,820px)}
.page-hero.compact{min-height:0;padding-bottom:70px;padding-top:calc(var(--announce-h) + 150px)}
.page-hero-media{position:absolute;inset:0;z-index:0;overflow:hidden;-webkit-mask-image:linear-gradient(to bottom,#000 78%,transparent);mask-image:linear-gradient(to bottom,#000 78%,transparent)}
.page-hero-media img{width:100%;height:100%;object-fit:cover;object-position:50% 28%;filter:saturate(.9) contrast(1.05);animation:heroZoom 14s ease-out both}
@keyframes heroZoom{from{transform:scale(1.08)}to{transform:scale(1)}}
.page-hero-media::after{content:"";position:absolute;inset:0;background:linear-gradient(135deg,rgba(36,107,253,.38),rgba(10,42,122,.2) 60%,transparent);mix-blend-mode:soft-light}
.page-hero-media.plain{background:radial-gradient(900px 500px at 80% 0%,rgba(36,107,253,.35),transparent 65%)}
.page-hero.compact h1{font-size:clamp(40px,5.2vw,80px)}
.crumb{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--text-2);margin-bottom:22px;flex-wrap:wrap}
.crumb a:hover{color:#fff}
.crumb i{font-style:normal;opacity:.5}
.crumb span{color:var(--text)}

/* Ảnh + chữ */
.feature{display:grid;grid-template-columns:1fr 1fr;gap:72px;align-items:center}
.feature.reverse .feature-img{order:2}
.feature-img{border-radius:24px;overflow:hidden;aspect-ratio:4/3.4;position:relative;box-shadow:0 40px 80px -40px rgba(3,8,23,.8)}
.feature-img img{width:100%;height:100%;object-fit:cover;transition:transform 1.2s cubic-bezier(.2,.7,.2,1)}
.feature-img:hover img{transform:scale(1.04)}
.feature-img::after{content:"";position:absolute;inset:0;border-radius:inherit;box-shadow:inset 0 0 0 1px rgba(170,198,255,.25);background:linear-gradient(160deg,rgba(36,107,253,.25),transparent 55%);mix-blend-mode:soft-light}
.feature-head{display:grid;gap:20px}

/* Số liệu */
.sec-stats{padding:70px 0}
.stats{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.stat{padding:34px 24px;display:grid;gap:6px}
.stat + .stat{border-left:1px solid var(--line)}
.stat b{font-family:var(--display);font-weight:300;font-size:clamp(34px,3.4vw,52px);letter-spacing:var(--ls-d);line-height:1.1;color:var(--accent-text)}
.stat span{color:var(--text-2);font-size:15px}

/* Hỏi đáp */
.faq{border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;gap:24px;padding:24px 0;font-family:var(--display);font-size:20px;font-weight:400;letter-spacing:var(--ls-d2);line-height:var(--lh-d2)}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";flex:none;width:32px;height:32px;border-radius:50%;border:1px solid var(--line-2);display:grid;place-items:center;color:var(--steel-300);transition:transform .3s}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq details p{color:var(--text-2);font-weight:300;padding:0 56px 26px 0;max-width:720px}

/* Thẻ liên kết */
.link-card{transition:transform .45s cubic-bezier(.2,.7,.2,1)}
.link-card .link{margin-top:6px}
.cards-4{grid-template-columns:repeat(4,1fr);gap:18px}
.cards-4 .info-card{min-height:260px}

/* Văn bản pháp lý */
.legal{display:grid;grid-template-columns:260px 1fr;gap:72px;align-items:start}
.legal-toc{position:sticky;top:110px;padding:24px;border-radius:18px;border:1px solid var(--line);background:rgba(10,26,66,.4)}
.legal-toc small{display:block;font-family:var(--label);font-weight:500;font-size:var(--fs-label);letter-spacing:var(--ls-label);text-transform:uppercase;color:var(--muted);margin-bottom:12px}
.legal-toc ol{list-style:none;display:grid;gap:4px;counter-reset:toc}
.legal-toc li{counter-increment:toc}
.legal-toc a{display:flex;gap:10px;padding:7px 0;font-size:14px;color:var(--text-2);line-height:1.4}
.legal-toc a::before{content:counter(toc,decimal-leading-zero);font-family:var(--mono);font-size:11px;color:var(--steel-300);padding-top:2px}
.legal-toc a:hover{color:#fff}
.legal-body{max-width:760px}
.legal-body section{padding:8px 0 30px;scroll-margin-top:120px}
.legal-body h2{font-family:var(--display);font-weight:400;font-size:26px;letter-spacing:var(--ls-d2);line-height:var(--lh-d2);margin-bottom:14px}
.legal-body p,.legal-body li{color:var(--text-2);font-weight:300;font-size:16.5px}
.legal-body p + p{margin-top:12px}
.legal-body ul{margin:12px 0 0 20px;display:grid;gap:8px}
.legal-body li::marker{color:var(--steel-300)}
.legal-updated{font-size:14px;color:var(--muted);margin-bottom:34px}
.legal-draft{padding:14px 18px;border-radius:14px;border:1px solid rgba(255,200,120,.35);background:rgba(255,190,90,.08);color:#FFD9A0!important;font-size:14px!important;margin-bottom:16px}

@media (max-width:1080px){
  .feature,.legal{grid-template-columns:1fr;gap:40px}
  .feature.reverse .feature-img{order:0}
  .legal-toc{position:static}
  .stats{grid-template-columns:1fr 1fr}
  .stat:nth-child(3){border-left:none}
  .stat:nth-child(n+3){border-top:1px solid var(--line)}
  .cards-4{grid-template-columns:1fr 1fr}
}
@media (max-width:640px){
  .cards-4{grid-template-columns:1fr}
  .stat{padding:24px 14px}
  .faq summary{font-size:18px}
  .faq details p{padding-right:0}
  .page-hero.compact{padding-top:calc(var(--announce-h) + 120px);padding-bottom:50px}
}


/* =========================================================
   TRANG BÀI VIẾT
   ========================================================= */
.article-hero{padding-bottom:40px}
.article-head{max-width:920px}
.article-head h1{font-size:clamp(34px,4.4vw,64px);margin-bottom:24px}
.article-head .lead{font-size:19px;max-width:760px}
.article-meta{display:flex;align-items:center;gap:12px;margin-top:28px;font-size:14px;color:var(--text-2);flex-wrap:wrap}
.article-meta i{width:4px;height:4px;border-radius:50%;background:var(--steel-300)}
.article-cover{margin:0;border-radius:28px;overflow:hidden;aspect-ratio:16/8;position:relative;box-shadow:0 50px 90px -50px rgba(3,8,23,.9)}
.article-cover img{width:100%;height:100%;object-fit:cover;display:block}
.article-cover::after{content:"";position:absolute;inset:0;border-radius:inherit;box-shadow:inset 0 0 0 1px rgba(170,198,255,.2)}
.article-sec{padding-top:80px}
.article-grid{display:grid;grid-template-columns:220px 1fr;gap:72px;align-items:start}
.article-side{position:sticky;top:110px;display:grid;gap:30px}
.share{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.share small{width:100%;font-family:var(--label);font-weight:500;font-size:var(--fs-label);letter-spacing:var(--ls-label);text-transform:uppercase;color:var(--muted);margin-bottom:4px}
.share a{width:40px;height:40px;border-radius:50%;border:1px solid var(--line-2);display:grid;place-items:center;font-weight:600;font-size:14px;color:var(--text-2);transition:all .25s}
.share a:hover{color:#fff;border-color:var(--steel-300);background:rgba(127,168,255,.1)}
.article-body{max-width:740px}
.article-body h2{font-family:var(--display);font-weight:400;font-size:clamp(24px,2.4vw,32px);letter-spacing:var(--ls-d2);line-height:var(--lh-d2);margin:48px 0 16px}
.article-body h2:first-child,.article-body .legal-draft + h2{margin-top:0}
.article-body p,.article-body li{color:var(--text-2);font-weight:300;font-size:18px;line-height:1.8}
.article-body p + p{margin-top:16px}
.article-body ul{margin:18px 0 0 22px;display:grid;gap:10px}
.article-body li::marker{color:var(--steel-300)}
.article-body blockquote{margin:44px 0;padding:8px 0 8px 28px;border-left:2px solid var(--primary);font-family:var(--display);font-weight:300;font-size:clamp(22px,2.2vw,30px);line-height:var(--lh-d2);letter-spacing:var(--ls-d2);color:var(--text)}
@media (max-width:1080px){
  .article-grid{grid-template-columns:1fr;gap:32px}
  .article-side{position:static;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap}
  .share small{display:none}
}
@media (max-width:640px){
  .article-cover{border-radius:18px;aspect-ratio:16/10}
  .article-body p,.article-body li{font-size:16.5px}
  .article-sec{padding-top:50px}
}


/* ---------- Apps: menu thả xuống & trang danh mục ---------- */
.apps-mega{display:block;width:min(1040px,94vw);left:50%;transform:translate(-50%,-6px)}
.menu-item.open .apps-mega{transform:translate(-50%,0)}
.apps-mega-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:2px}
.foot-cols .foot-more{color:var(--steel-300)}
.apps-mega-grid a{display:block;padding:12px;border-radius:12px;transition:background .2s}
.apps-mega-grid a:hover{background:rgba(127,168,255,.08)}
.apps-mega-grid b{display:block;font-weight:500;font-size:14px;line-height:1.35}
.apps-mega-grid span{font-size:12.5px;color:var(--muted);line-height:1.45;display:block;margin-top:2px}
.apps-mega-all{display:block;margin-top:6px;padding:12px;border-top:1px solid var(--line);font-size:14px;font-weight:500;color:var(--steel-300)}
.apps-mega-all:hover{color:#fff}
.app-bar .app-bar-inner{display:flex;align-items:center;gap:20px}
.app-bar .tabs{flex:1;flex-wrap:nowrap;overflow-x:auto;scrollbar-width:none;margin:0}
.app-bar .tabs::-webkit-scrollbar{display:none}
.app-bar .tab{flex:none;height:40px;font-size:14px}
.app-search{flex:none;display:flex;align-items:center;gap:8px;height:40px;padding:0 14px;border-radius:999px;border:1px solid var(--line-2);background:rgba(3,8,23,.5);width:240px}
.app-search:focus-within{border-color:var(--steel-300)}
.app-search svg{width:16px;height:16px;color:var(--muted);flex:none}
.app-search input{flex:1;min-width:0;background:none;border:0;outline:none;color:var(--text);font:inherit;font-size:14px}
.app-sec{padding-top:70px}
.app-group{scroll-margin-top:150px}
.app-group + .app-group{margin-top:80px}
.app-group-head{display:flex;align-items:baseline;justify-content:space-between;gap:20px;border-bottom:1px solid var(--line);padding-bottom:14px}
.app-group-head h2{font-family:var(--display);font-weight:300;font-size:clamp(26px,2.6vw,36px);letter-spacing:var(--ls-d2);line-height:var(--lh-d2)}
.app-group-head span{font-size:13px;color:var(--muted);white-space:nowrap}
.app-group-d{color:var(--text-2);font-size:15px;margin:12px 0 28px}
.app-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.app-card{padding:26px;display:flex;flex-direction:column;gap:10px;min-height:230px;transition:transform .4s cubic-bezier(.2,.7,.2,1)}
.app-card:hover{transform:translateY(-4px)}
.app-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:6px}
.app-mono{width:46px;height:46px;border-radius:14px;display:grid;place-items:center;font-family:var(--display);font-weight:600;font-size:15px;letter-spacing:.02em;color:#fff;background:var(--chrome);background-size:200% 100%;box-shadow:inset 0 1px 0 rgba(255,255,255,.5),0 10px 24px -12px rgba(36,107,253,.9)}
.app-badge{font-size:11.5px;font-weight:500;padding:5px 10px;border-radius:999px;border:1px solid rgba(255,200,120,.35);color:#FFD9A0;background:rgba(255,190,90,.08)}
.app-card h3{font-family:var(--display);font-weight:400;font-size:21px;letter-spacing:var(--ls-d2)}
.app-card p{color:var(--text-2);font-weight:300;font-size:14.5px;line-height:1.6}
.app-card.is-soon .app-mono{background:rgba(127,168,255,.12);color:var(--steel-300);box-shadow:none}
.app-card.is-soon{opacity:.85}
.app-chips{display:flex;flex-wrap:wrap;gap:6px;margin-top:auto;padding-top:8px}
.app-chips span{font-size:12px;padding:4px 10px;border-radius:999px;border:1px solid var(--line-2);color:var(--text-2)}
.app-chips .chip-tag{border-color:rgba(127,168,255,.45);color:var(--steel-100);background:rgba(36,107,253,.14)}
@media (max-width:1080px){
  .app-grid{grid-template-columns:1fr 1fr}
  .app-bar .app-bar-inner{flex-direction:column;align-items:stretch;gap:10px}
  .app-search{width:100%}
}
@media (max-width:640px){
  .app-grid{grid-template-columns:1fr}
  .app-card{min-height:0}
}

/* ---------- Trang chi tiết ứng dụng ---------- */
a.app-card{color:inherit}
.app-go{width:34px;height:34px;border-radius:50%;border:1px solid var(--line-2);display:grid;place-items:center;font-size:15px;color:var(--text-2);transition:all .3s}
.app-card:hover .app-go{background:var(--chrome);background-size:200% 100%;color:#fff;border-color:transparent;transform:rotate(-45deg)}
.app-hero-title{display:flex;align-items:center;gap:16px}
.app-mono.big{width:64px;height:64px;border-radius:18px;font-size:22px}
.app-soon-note{margin-top:40px}
.feat-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;padding-top:10px}
.feat{display:flex;align-items:center;gap:14px;padding:20px 22px;border-radius:16px;border:1px solid var(--line);background:rgba(10,26,66,.35);font-size:16px}
.feat i{flex:none;width:30px;height:30px;border-radius:50%;display:grid;place-items:center;background:rgba(36,107,253,.18);color:var(--steel-300)}
.feat i svg{width:16px;height:16px}
.app-chips-lg{margin-top:8px}
.app-chips-lg span{font-size:13px;padding:6px 12px}
.parts-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.part{padding:26px;display:grid;gap:10px}
.part b{font-family:var(--display);font-weight:400;font-size:22px;letter-spacing:var(--ls-d2)}
@media (max-width:1080px){.parts-grid{grid-template-columns:1fr 1fr}}
@media (max-width:640px){.feat-grid,.parts-grid{grid-template-columns:1fr}.app-mono.big{width:52px;height:52px;font-size:18px}}


/* Rê chuột chỉ áp dụng cho thiết bị có chuột; cảm ứng dùng lớp .open (core.js) */
@media (hover:hover) and (pointer:fine){
  .menu-item:hover .menu-btn{color:#fff;background:rgba(127,168,255,.08)}
  .menu-item:hover .chev{transform:rotate(225deg) translate(-1px,-1px)}
  .menu-item:hover .mega,.menu-item:hover .drop,.menu-item:focus-within .mega,.menu-item:focus-within .drop{opacity:1;visibility:visible;transform:none}
  .menu-item:hover .apps-mega,.menu-item:focus-within .apps-mega{transform:translate(-50%,0)}
}

/* ---------- Reveal ---------- */
.rv{opacity:0;transform:translateY(26px);transition:opacity 1s ease,transform 1s cubic-bezier(.2,.7,.2,1)}
.rv.in{opacity:1;transform:none}
.d1{transition-delay:.1s}.d2{transition-delay:.2s}.d3{transition-delay:.3s}

/* ---------- Responsive ---------- */
@media (max-width:1080px){
  .menu,.nav-right>.lang,.nav-right>.btn{display:none}
  .burger{display:block}
  .mobile{display:block;position:absolute;left:0;right:0;top:100%;height:calc(100vh - 72px - var(--announce-h));height:calc(100dvh - 72px - var(--announce-h));border-top:1px solid var(--line);background:var(--abyss);padding:12px 40px 40px;overflow-y:auto;opacity:0;visibility:hidden;transform:translateY(-8px);transition:all .3s}
  .nav.open{background:var(--abyss)}
  .nav.open .mobile{opacity:1;visibility:visible;transform:none}
  body.scrolled .mobile{height:calc(100vh - 72px);height:calc(100dvh - 72px)}
  .nav.open{border-color:transparent}
  .mobile details{border-bottom:1px solid var(--line)}
  .mobile summary{list-style:none;padding:18px 0;font-size:20px;font-family:var(--display);cursor:pointer;display:flex;justify-content:space-between}
  .mobile summary::-webkit-details-marker{display:none}
  .mobile summary::after{content:"+";color:var(--steel-300)}
  .mobile details[open] summary::after{content:"−"}
  .mobile details a{display:block;padding:9px 0 9px 4px;color:var(--text-2)}
  .mobile details[open]{padding-bottom:12px}
  .mobile-link{display:block;padding:18px 0;font-size:20px;font-family:var(--display);border-bottom:1px solid var(--line)}
  .mobile-foot{display:flex;flex-direction:column;align-items:flex-start;gap:18px;margin-top:30px}
  .os-card,.duo,.team-grid{grid-template-columns:1fr}
  .os-visual{min-height:500px;order:-1}
  .os-text{padding:40px}
  .lattice{grid-template-columns:repeat(5,1fr);gap:10px}
  .cell{height:140px}
  .foot-cols{grid-template-columns:repeat(3,1fr)}
  .team-grid{gap:50px}
}
@media (max-width:640px){
  :root{--announce-h:36px}
  body{font-size:15px}
  .wrap,.nav-inner{padding:0 16px}
  .mobile{padding:8px 16px 32px}
  .announce{font-size:12px}
  .announce-link{display:none}
  .hero{padding-bottom:70px}
  .hero h1{margin-bottom:34px}
  .hero-bottom{gap:24px}
  .hero-bottom p{font-size:17px}
  .scroll-cue{display:none}
  .sec{padding:90px 0}
  .sec-head{align-items:flex-start;flex-direction:column;gap:24px;margin-bottom:36px}
  .rail{padding:0 16px 10px}
  .story{scroll-margin-left:16px;flex-basis:82vw}
  .lattice{grid-template-columns:repeat(2,1fr);margin-top:56px}
  .cell{height:120px;font-size:13px;padding:10px 12px;border-radius:14px}
  .cell:nth-child(n+13){display:none}
  .os-text,.duo-card{padding:28px}
  .duo-card{min-height:auto}
  .o3{display:none}
  .os-visual{min-height:440px}
  .os-core{width:96px;height:96px;margin:-48px 0 0 -48px;gap:4px}
  .os-core img{width:30px;height:30px}
  .os-core span{font-size:10.5px}
  .os-node-in{gap:5px}
  .os-node img{width:50px;height:50px;padding:2px}
  .os-node span{font-size:10.5px;padding:3px 8px}
  .ind-card{min-height:600px}
  .ind-card::after{background:linear-gradient(180deg,rgba(3,8,23,.2) 0%,rgba(3,8,23,.95) 60%)}
  .ind-content{padding:28px}
  .tabs{flex-wrap:nowrap;overflow-x:auto;scrollbar-width:none;margin-right:-16px;padding-right:16px}
  .tab{flex:none}
  .foot-cols{grid-template-columns:1fr 1fr}
  .footer{padding-top:90px}
  .foot-cta{padding-bottom:60px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
  .rv{opacity:1;transform:none}
}