/* OneCAD — Trang chủ tông tối + màn đầu 3D «Thành phố số» (HST-6A)
 * Chỉ áp cho <body class="home"> (index.html). nen-tang/*.html không bị ảnh hưởng.
 */
body.home{
 --ink:#eef5fb;--ink2:#b9c8d6;--mute:#8fa4b8;--line:rgba(160,210,240,.14);--bg:#050a14;--card:rgba(12,24,42,.72);
 --shadow:0 20px 50px -24px rgba(0,0,0,.7);
 --c-portal:#4aa8f0;--c-academy:#3fd0bb;--c-forma:#8fd05a;--c-nexus:#6fa8ff;--c-fm:#4fd08a;--c-iot:#f39a2b;--c-ai:#3fd0bb;
 --x-teal:#1fb5a0;--x-blue:#1478d4;--x-navh:76px;
 background:#050a14;color:var(--ink)
}
html:not(.ann-off) body.home{--x-navh:114px}
body.home .lead{color:#a9bccd}
body.home .grad{background:linear-gradient(95deg,#7cc4ff 0%,#3fd0bb 45%,#a6e27f 100%);-webkit-background-clip:text;background-clip:text;color:transparent}
body.home .eyebrow{color:#7fd8c8}
body.home .btn.sec{background:rgba(255,255,255,.04);border:1px solid rgba(190,225,250,.24);color:#e6f0f8;backdrop-filter:blur(8px)}
body.home .btn.sec:hover{background:rgba(255,255,255,.09)}
body.home .btn.pri{background:linear-gradient(100deg,#1478d4,#1fb5a0);box-shadow:0 8px 30px -8px rgba(31,181,160,.6),inset 0 1px 0 rgba(255,255,255,.25)}

/* nav tối */
body.home .nav{background:linear-gradient(180deg,rgba(5,10,20,.92),rgba(5,10,20,.55) 70%,rgba(5,10,20,0))}
body.home .nav.scrolled{background:rgba(5,10,20,.82);box-shadow:0 1px 0 rgba(160,210,240,.1)}
body.home .nav ul{color:#b9c8d6}
body.home .nav ul a:hover{color:#fff}
body.home .burger{background:rgba(255,255,255,.04);border-color:rgba(160,210,240,.2);color:#cfe0ee}
@media (max-width:1080px){body.home .nav.open ul{background:#07111f;box-shadow:0 18px 40px rgba(0,0,0,.5)}}

/* nền 3D */
#gl{position:fixed;inset:0;width:100vw;height:100vh;display:block;z-index:0}
.x-atmo{position:fixed;inset:0;pointer-events:none;z-index:1;
 background:radial-gradient(60% 55% at 68% 42%,rgba(31,181,160,.10),transparent 70%),radial-gradient(40% 40% at 80% 20%,rgba(20,120,212,.10),transparent 70%),linear-gradient(180deg,rgba(5,10,20,0) 60%,rgba(3,6,12,.75) 100%)}
.x-scrim{position:fixed;inset:0;pointer-events:none;z-index:1;background:linear-gradient(90deg,rgba(4,8,16,.92) 0%,rgba(4,8,16,.72) 28%,rgba(4,8,16,0) 56%)}
.no-gl #gl{display:none}
.no-gl .x-atmo{background:radial-gradient(55% 60% at 70% 45%,rgba(31,181,160,.22),transparent 70%),radial-gradient(40% 40% at 85% 20%,rgba(20,120,212,.2),transparent 70%),
 repeating-linear-gradient(0deg,rgba(120,200,220,.05) 0 1px,transparent 1px 44px),repeating-linear-gradient(90deg,rgba(120,200,220,.05) 0 1px,transparent 1px 44px),#050a14}
.no-gl .x-tag,.no-gl .x-sn{display:none}
body.home main{position:relative;z-index:5}

/* ===== HERO ===== */
.x-hero{position:relative;min-height:100vh;display:flex;flex-direction:column;justify-content:center;padding:calc(var(--x-navh) + 24px) 0 40px}
.x-hero .wrap{width:100%;max-width:1344px;display:flex;flex-direction:column;flex:1;justify-content:center}
.x-hero-in{max-width:700px;margin-top:auto}
.x-eyebrow{display:inline-flex;align-items:center;gap:10px;font-family:'JetBrains Mono',monospace;font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:#9fd9cf;padding:7px 14px 7px 10px;border-radius:999px;border:1px solid rgba(31,181,160,.28);background:rgba(31,181,160,.06)}
.x-eyebrow i{width:7px;height:7px;border-radius:50%;background:var(--x-teal);animation:live 1.6s ease-in-out infinite}
.x-hero h1{margin-top:26px;font-weight:800;font-size:clamp(44px,6.4vw,96px);line-height:.98;letter-spacing:-.035em;color:#fff}
.x-hero h1 .l2{display:block;margin-top:10px;font-size:.56em;font-weight:700;letter-spacing:-.025em;line-height:1.08;background:linear-gradient(95deg,#7cc4ff 0%,#3fd0bb 45%,#a6e27f 100%);-webkit-background-clip:text;background-clip:text;color:transparent}
.x-hero .lead{margin-top:26px;font-size:clamp(16px,1.25vw,19px);line-height:1.62;max-width:560px}
.x-hero .lead b{color:#e8f2fa;font-weight:600}
.x-hero .cta{margin-top:36px}
.x-hero .cta .btn{padding:16px 26px}
.x-foot{margin-top:auto;padding-top:48px;display:flex;align-items:flex-end;justify-content:space-between;gap:40px;flex-wrap:wrap}
.x-stats{display:flex}
.x-stat{padding:0 34px;border-left:1px solid var(--line)}
.x-stat:first-child{padding-left:0;border-left:0}
.x-stat b{display:block;font-size:40px;font-weight:700;letter-spacing:-.03em;line-height:1;font-variant-numeric:tabular-nums;background:linear-gradient(180deg,#fff,#a9c6dc);-webkit-background-clip:text;background-clip:text;color:transparent}
.x-stat span{display:block;margin-top:8px;font-size:13px;color:var(--mute)}
.x-partner{display:flex;align-items:center;gap:16px;padding:12px 18px;border-radius:14px;border:1px solid var(--line);background:rgba(8,16,28,.5);backdrop-filter:blur(10px)}
.x-partner img{height:26px}
.x-partner span{font-size:12.5px;color:#9fb2c4;line-height:1.45;border-left:1px solid var(--line);padding-left:16px}
.x-scroll{position:absolute;left:50%;bottom:22px;transform:translateX(-50%);display:flex;flex-direction:column;align-items:center;gap:8px;font-family:'JetBrains Mono',monospace;font-size:10px;letter-spacing:.2em;color:#5d7186;text-transform:uppercase}
.x-scroll i{width:1px;height:34px;background:linear-gradient(180deg,transparent,var(--x-teal));position:relative;overflow:hidden}
.x-scroll i::after{content:"";position:absolute;left:-1px;width:3px;height:10px;background:#bff;border-radius:2px;animation:x-drip 1.8s infinite}
@keyframes x-drip{0%{top:-10px}100%{top:34px}}

/* nhãn bám vị trí 3D */
.x-tag{position:fixed;left:0;top:0;z-index:4;pointer-events:none;opacity:0;will-change:transform,opacity;transition:opacity .4s}
.x-tag .box{position:relative;transform:translate(16px,-50%);padding:9px 12px 10px;border-radius:10px;border:1px solid rgba(140,220,230,.25);background:rgba(6,16,28,.62);backdrop-filter:blur(8px);min-width:170px}
.x-tag::before{content:"";position:absolute;left:-4px;top:-4px;width:8px;height:8px;border-radius:50%;background:#bff8ef;box-shadow:0 0 12px 3px rgba(31,181,160,.7)}
.x-tag .box::before{content:"";position:absolute;left:-16px;top:50%;width:16px;height:1px;background:rgba(160,230,230,.5)}
.x-tag h6{font-family:'JetBrains Mono',monospace;font-size:10px;letter-spacing:.14em;text-transform:uppercase;color:#7fd8c8;font-weight:500}
.x-tag p{margin-top:3px;font-size:13px;font-weight:600;color:#eaf4fb;white-space:nowrap}
.x-tag p em{font-style:normal;color:#8fa4b8;font-weight:400}
.x-tag.org::before{background:#ffd9a8;box-shadow:0 0 12px 3px rgba(243,154,43,.8)}
.x-tag.org .box{border-color:rgba(243,154,43,.35)}
.x-tag.org h6{color:#f7b768}

/* nhãn cảm biến IoT */
.x-sn{position:fixed;left:0;top:0;z-index:4;pointer-events:none;opacity:0;will-change:transform,opacity;transition:opacity .35s}
.x-sn i.pt{position:absolute;left:-4px;top:-4px;width:8px;height:8px;border-radius:50%;background:#bff8ef;box-shadow:0 0 10px 2px rgba(31,181,160,.75)}
.x-sn .bx{position:absolute;top:0;left:14px;transform:translateY(-50%);display:flex;align-items:center;gap:9px;padding:6px 9px 6px 10px;border-radius:9px;border:1px solid rgba(140,220,230,.22);background:rgba(6,16,28,.66);backdrop-filter:blur(8px);white-space:nowrap}
.x-sn .bx::before{content:"";position:absolute;top:50%;width:10px;height:1px;background:rgba(160,230,230,.45);left:-11px}
.x-sn.l .bx{left:auto;right:14px}
.x-sn.l .bx::before{left:auto;right:-11px}
.x-sn h6{font-family:'JetBrains Mono',monospace;font-size:9px;letter-spacing:.1em;text-transform:uppercase;color:#7fd8c8;font-weight:500}
.x-sn p{font-size:12px;font-weight:600;color:#eaf4fb;margin-top:1px;font-variant-numeric:tabular-nums}
.x-sn svg{width:46px;height:16px;flex:none}
.x-sn svg polyline{fill:none;stroke:#4fe0c4;stroke-width:1.4;stroke-linejoin:round;stroke-linecap:round}
.x-sn.warn i.pt{background:#ffd29a;animation:x-alarm 1s infinite}
.x-sn.warn .bx{border-color:rgba(243,154,43,.6);background:rgba(40,22,6,.72)}
.x-sn.warn h6{color:#ffb766}.x-sn.warn svg polyline{stroke:#f39a2b}
.x-sn.crit i.pt{background:#ffb0a8;animation:x-alarmR .8s infinite}
.x-sn.crit .bx{border-color:rgba(255,90,80,.65);background:rgba(44,10,10,.75)}
.x-sn.crit h6{color:#ff8a80}.x-sn.crit svg polyline{stroke:#ff6b5e}
@keyframes x-alarm{0%{box-shadow:0 0 0 0 rgba(243,154,43,.9)}70%{box-shadow:0 0 0 14px rgba(243,154,43,0)}100%{box-shadow:0 0 0 0 rgba(243,154,43,0)}}
@keyframes x-alarmR{0%{box-shadow:0 0 0 0 rgba(255,90,80,.95)}70%{box-shadow:0 0 0 16px rgba(255,90,80,0)}100%{box-shadow:0 0 0 0 rgba(255,90,80,0)}}

/* ===== VÒNG ĐỜI 5 GIAI ĐOẠN ===== */
body.home section.x-life{padding:0;height:640vh}
.x-stick{position:sticky;top:0;height:100vh;overflow:hidden}
.x-lchead{position:absolute;left:max(48px,calc((100vw - 1344px)/2 + 24px));top:calc(var(--x-navh) + 36px);max-width:640px}
.x-kicker{font-family:'JetBrains Mono',monospace;font-size:12px;letter-spacing:.18em;text-transform:uppercase;color:#7fd8c8}
.x-lchead h2{margin-top:12px;font-size:clamp(26px,2.5vw,38px);line-height:1.04;font-weight:800;letter-spacing:-.03em;color:#fff}
.x-lchead h2 span{color:#6f879c}
.x-cards{position:absolute;left:max(48px,calc((100vw - 1344px)/2 + 24px));top:calc(var(--x-navh) + 182px);width:min(520px,40vw);height:400px}
.x-card{position:absolute;inset:0 0 auto 0;opacity:0;transform:translateY(24px);transition:opacity .55s ease,transform .7s cubic-bezier(.2,.8,.2,1);pointer-events:none}
.x-card.on{opacity:1;transform:none;pointer-events:auto}
.x-card .num{display:flex;align-items:center;gap:14px;font-family:'JetBrains Mono',monospace;font-size:13px;color:#7f95aa;letter-spacing:.1em}
.x-card .num b{font-size:13px;color:#fff;font-weight:500;padding:3px 9px;border-radius:6px;background:rgba(255,255,255,.08)}
.x-card h3{margin-top:14px;font-size:clamp(38px,4vw,64px);font-weight:800;letter-spacing:-.035em;line-height:1;color:#fff}
.x-card h3.long{font-size:clamp(30px,2.9vw,44px);line-height:1.08;max-width:520px}
.x-card p.d{margin-top:16px;font-size:16.5px;line-height:1.6;color:#a9bccd;max-width:470px}
.x-plats{margin-top:22px;display:flex;flex-direction:column;gap:10px}
.x-plat{position:relative;display:flex;align-items:center;gap:14px;padding:11px 16px;border-radius:14px;border:1px solid var(--line);background:rgba(8,18,32,.6);backdrop-filter:blur(10px);max-width:470px;transition:border-color .2s,background .2s}
a.x-plat:hover,.x-plat:has(a.go:hover){border-color:rgba(160,220,240,.35);background:rgba(14,28,46,.7)}
.x-plat .ic{width:38px;height:38px;border-radius:10px;display:grid;place-items:center;flex:none}
.x-plat .ic svg{width:20px;height:20px}
.x-plat strong{display:block;font-size:15px;font-weight:700;color:#fff}
.x-plat small{display:block;font-size:12.5px;color:#8fa4b8;margin-top:1px;line-height:1.4}
.x-plat small em{font-style:normal;color:#b7ccff}
.x-plat .side{margin-left:auto;display:flex;align-items:center;gap:10px;flex:none}
.x-plat a.go::after{content:"";position:absolute;inset:0;border-radius:14px;z-index:1}
.x-plat a.go:focus-visible{outline:none}.x-plat a.go:focus-visible::after{outline:2px solid #7fd8c8;outline-offset:2px}
.x-plat .more{position:relative;z-index:2;font-size:12px;font-weight:600;color:#9fb2c4;text-decoration:underline;text-decoration-color:rgba(159,178,196,.45);text-underline-offset:3px}
.x-plat .more:hover{color:#fff}
.x-plat .arr{font-size:14px;color:#7fd8c8;transition:transform .2s}
.x-plat:hover .arr{transform:translateX(3px)}
.x-badge{font-size:10.5px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;padding:4px 8px;border-radius:6px;white-space:nowrap;background:rgba(243,154,43,.16);color:#ffbf73;border:1px solid rgba(243,154,43,.4)}
.x-ai-line{margin-top:16px;display:flex;align-items:center;gap:12px;font-size:13.5px;color:#cfe3f1;max-width:470px}
.x-chip{flex:none;display:inline-flex;align-items:center;gap:7px;padding:5px 10px 5px 8px;border-radius:999px;font-size:11.5px;font-weight:700;letter-spacing:.04em;background:linear-gradient(100deg,rgba(20,120,212,.25),rgba(31,181,160,.25));border:1px solid rgba(110,200,220,.35);color:#dff}
.x-chip svg{width:14px;height:14px}
.x-rail{position:absolute;right:max(48px,calc((100vw - 1344px)/2 + 24px));top:50%;transform:translateY(-50%);display:flex;flex-direction:column;gap:22px;align-items:flex-end;transition:top .4s}
.x-rail .x-st{display:flex;align-items:center;gap:14px;font-size:13px;color:#5f7489;font-weight:500;transition:color .4s}
.x-rail .x-st i{width:10px;height:10px;border-radius:50%;border:1px solid #4a6075;transition:all .4s}
.x-rail .x-st.on{color:#fff}
.x-rail .x-st.on i{background:var(--x-teal);border-color:var(--x-teal);box-shadow:0 0 0 5px rgba(31,181,160,.15),0 0 16px rgba(31,181,160,.8)}
.x-rail .x-st.done{color:#8fa4b8}
.x-rail .x-st.done i{background:#2d4a5e;border-color:#3f6a80}
.x-rail::before{content:"";position:absolute;right:4.5px;top:6px;bottom:6px;width:1px;background:linear-gradient(180deg,transparent,#2a3d50 15%,#2a3d50 85%,transparent);z-index:-1}
/* giai đoạn 4: thu thanh mốc chỉ còn chấm để nhãn cảm biến không đè */
.x-hudon .x-rail{top:30%;right:22px;gap:16px}
.x-hudon .x-rail .x-st span{display:none}
.x-aibar{position:absolute;left:max(48px,calc((100vw - 1344px)/2 + 24px));right:max(48px,calc((100vw - 1344px)/2 + 24px));bottom:34px;display:flex;align-items:center;gap:18px;padding:14px 20px;border-radius:16px;border:1px solid rgba(110,200,220,.18);background:linear-gradient(90deg,rgba(20,120,212,.10),rgba(31,181,160,.08) 50%,rgba(108,192,74,.06));backdrop-filter:blur(10px)}
.x-aibar .core{display:flex;align-items:center;gap:10px;font-weight:700;font-size:14px;white-space:nowrap;color:#fff}
.x-aibar .core svg{width:22px;height:22px}
.x-aibar .flow{flex:1;height:2px;position:relative;background:rgba(140,200,230,.12);border-radius:2px;overflow:hidden;animation:none}
.x-aibar .flow i{position:absolute;top:0;bottom:0;width:22%;background:linear-gradient(90deg,transparent,#7ff0dc,transparent);animation:x-flow 2.6s linear infinite}
@keyframes x-flow{0%{left:-22%}100%{left:100%}}
.x-aibar .txt{font-size:13px;color:#a9bccd;white-space:nowrap;font-family:'JetBrains Mono',monospace}

/* bảng bản sao số */
.x-hud{position:absolute;right:max(48px,calc((100vw - 1344px)/2 + 24px));bottom:104px;width:420px;padding:14px 16px 12px;border-radius:18px;border:1px solid rgba(140,220,230,.22);
 background:linear-gradient(160deg,rgba(14,30,48,.72),rgba(6,14,26,.72));backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
 box-shadow:0 30px 80px -30px rgba(0,0,0,.8),inset 0 1px 0 rgba(255,255,255,.06);opacity:0;transform:translateY(16px);transition:opacity .5s,transform .6s;pointer-events:none;visibility:hidden}
.x-hud.on{opacity:1;transform:none;pointer-events:auto;visibility:visible}
.x-hud .top{display:flex;align-items:center;gap:10px}
.x-hud .live{width:8px;height:8px;border-radius:50%;background:#3fe0a0;box-shadow:0 0 10px #3fe0a0}
.x-hud .ttl{font-size:13.5px;font-weight:700;color:#fff}
.x-hud .clk{margin-left:auto;font-family:'JetBrains Mono',monospace;font-size:12.5px;color:#cfe3f1;font-variant-numeric:tabular-nums}
.x-hud .sub2{margin-top:2px;padding-left:18px;font-size:11px;color:#7f95aa;display:flex;gap:8px;align-items:center}
.x-hud .sub2 b{font-weight:600;color:#f7b768;font-size:10px;letter-spacing:.06em;text-transform:uppercase;padding:1px 6px;border-radius:4px;border:1px solid rgba(243,154,43,.35)}
.x-hud .mx{margin-top:12px;display:grid;grid-template-columns:repeat(4,1fr);gap:8px}
.x-m{padding:8px 9px 6px;border-radius:10px;background:rgba(255,255,255,.035);border:1px solid rgba(255,255,255,.05);transition:background .3s,border-color .3s}
.x-m small{display:block;font-size:10.5px;color:#8fa4b8;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.x-m b{display:block;margin-top:2px;font-size:15px;font-weight:700;font-variant-numeric:tabular-nums;white-space:nowrap;color:#fff}
.x-m b em{font-style:normal;font-size:10.5px;color:#8fa4b8;font-weight:500;margin-left:2px}
.x-m svg{display:block;width:100%;height:14px;margin-top:3px}
.x-m svg polyline{fill:none;stroke:#4fe0c4;stroke-width:1.3}
.x-m.warn{background:rgba(243,154,43,.12);border-color:rgba(243,154,43,.45)}.x-m.warn svg polyline{stroke:#f39a2b}
.x-m.crit{background:rgba(255,90,80,.12);border-color:rgba(255,90,80,.5)}.x-m.crit svg polyline{stroke:#ff6b5e}
.x-ev{margin-top:10px;min-height:34px;display:flex;align-items:center;gap:10px;padding:7px 10px;border-radius:10px;background:rgba(31,181,160,.07);border:1px solid rgba(31,181,160,.18);font-size:12px;color:#cfe3f1;transition:all .35s;line-height:1.4}
.x-ev svg{width:16px;height:16px;flex:none}
.x-ev.warn{background:rgba(243,154,43,.12);border-color:rgba(243,154,43,.45);color:#ffe2bf}
.x-ev.crit{background:rgba(255,90,80,.12);border-color:rgba(255,90,80,.5);color:#ffd6d2}
.x-ev.ai{background:linear-gradient(100deg,rgba(20,120,212,.2),rgba(31,181,160,.18));border-color:rgba(110,200,220,.4);color:#e8fbff}
.x-ev b{font-weight:700}
.x-hud .bot{margin-top:10px;display:flex;align-items:center;gap:10px;font-size:11.5px;color:#8fa4b8}
.x-hud .tg{display:inline-flex;align-items:center;gap:8px;cursor:pointer;user-select:none;color:#cfe3f1;font:inherit;font-weight:600;background:none;border:0;padding:2px 0}
.x-hud .tg:focus-visible{outline:2px solid #7fd8c8;outline-offset:3px;border-radius:6px}
.x-hud .tg i{width:28px;height:16px;border-radius:9px;background:#24364a;position:relative;transition:background .25s}
.x-hud .tg i::after{content:"";position:absolute;left:2px;top:2px;width:12px;height:12px;border-radius:50%;background:#9fb2c4;transition:transform .25s,background .25s}
.x-hud .tg.on i{background:linear-gradient(90deg,#1478d4,#f39a2b)}.x-hud .tg.on i::after{transform:translateX(12px);background:#fff}
.x-hud .lg{margin-left:auto;display:flex;align-items:center;gap:6px;opacity:.35;transition:opacity .3s}
.x-hud .lg.on{opacity:1}
.x-hud .lg span{width:70px;height:6px;border-radius:3px;background:linear-gradient(90deg,#2a7fff,#1fb5a0,#a6d84a,#f39a2b,#ff5a4a)}

/* Không có JS: các giai đoạn xếp dọc, đọc được */
html:not(.js) body.home section.x-life{height:auto}
html:not(.js) .x-stick{position:relative;height:auto;overflow:visible;padding:calc(var(--x-navh) + 30px) 24px 60px;max-width:1200px;margin:0 auto}
html:not(.js) .x-lchead,html:not(.js) .x-cards,html:not(.js) .x-card{position:static;width:auto;height:auto;opacity:1;transform:none;pointer-events:auto}
html:not(.js) .x-card{margin-top:48px}
html:not(.js) .x-rail,html:not(.js) .x-hud,html:not(.js) .x-aibar,html:not(.js) .x-scroll{display:none}

/* ===== CÁC PHẦN CÒN LẠI — tông tối ===== */
body.home #nen-tang{background:linear-gradient(180deg,rgba(5,10,20,.35) 0%,rgba(5,10,20,.82) 40%,#050a14 100%)}
body.home .pc{background:linear-gradient(180deg,rgba(14,28,48,.78),rgba(8,16,30,.82));border-color:var(--line);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px)}
body.home .pc:hover{box-shadow:0 26px 60px -24px rgba(0,0,0,.8);border-color:rgba(160,220,240,.28)}
body.home .pc h3{color:#fff}
body.home .pc h3 em{color:#7f95aa}
body.home .pc ul{color:#a9bccd}
body.home .pc .tag{background:color-mix(in srgb,var(--c) 16%,transparent);border:1px solid color-mix(in srgb,var(--c) 40%,transparent)}
body.home .card-note{background:color-mix(in srgb,var(--c) 12%,transparent);color:color-mix(in srgb,var(--c) 55%,#fff);border:1px solid color-mix(in srgb,var(--c) 25%,transparent)}
body.home .forma-note{background:rgba(143,208,90,.1);color:#cfe8b8;border:1px solid rgba(143,208,90,.25)}
body.home .pc .more{color:#9fb2c4}
body.home .pc.ai{background:linear-gradient(110deg,rgba(20,120,212,.55),rgba(31,181,160,.45) 55%,rgba(108,192,74,.4));border:1px solid rgba(110,200,220,.3)}
body.home .strip{background:#06101d;border-color:var(--line)}
body.home .strip .it{color:#b9c8d6}
body.home .strip .it svg{color:#3fd0bb}
body.home #xu-huong{background:#050a14}
body.home .tc{background:linear-gradient(180deg,rgba(14,28,48,.7),rgba(8,16,30,.7));border-color:var(--line)}
body.home .tc .n{background:rgba(31,181,160,.12);color:#7fd8c8}
body.home .tc h4{color:#fff}
body.home .tc p{color:#a9bccd}
body.home .why{background:#07101e}
body.home #lo-trinh{background:#050a14}
body.home .ph::before{background:#050a14;box-shadow:0 0 0 6px #050a14}
body.home .ph .in{background:linear-gradient(180deg,rgba(14,28,48,.7),rgba(8,16,30,.7));border-color:var(--line)}
body.home .ph h4{color:#fff}
body.home .ph p{color:#a9bccd}
body.home .ph p b{color:#fff}
body.home .cta-sec{background:#050a14;position:relative;z-index:5}
body.home .cta-box{background:linear-gradient(115deg,rgba(20,120,212,.85),rgba(22,137,125,.85) 55%,rgba(79,154,38,.8));box-shadow:0 30px 80px -30px rgba(31,181,160,.5)}
body.home .cta-box .btn.sec{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.35);color:#fff}
body.home footer{background:#040810;border-color:var(--line);color:#8fa4b8;position:relative;z-index:5}
body.home footer h5{color:#e6f0f8}
body.home footer li a:hover{color:#fff}
body.home footer .legal{border-color:var(--line)}

/* ===== ĐIỆN THOẠI ===== */
@media (max-width:900px){
 .x-scrim{background:linear-gradient(180deg,rgba(4,8,16,.82) 0%,rgba(4,8,16,.4) 26%,rgba(4,8,16,0) 40%,rgba(4,8,16,0) 72%,rgba(4,8,16,.8) 100%)}
 .x-hero{padding:calc(var(--x-navh) + 20px) 0 26px;justify-content:flex-start}
 .x-hero-in{margin-top:0}
 .x-eyebrow{font-size:10px;letter-spacing:.12em}
 .x-hero h1{margin-top:20px;font-size:44px}
 .x-hero h1 .l2{font-size:24px}
 .x-hero .lead{font-size:15px;margin-top:16px}
 .x-hero .cta{margin-top:22px}
 .x-hero .cta .btn{padding:13px 20px;font-size:14px}
 .x-foot{padding-top:24px;gap:16px}
 .x-stat{padding:0 16px}.x-stat b{font-size:28px}.x-stat span{font-size:11.5px}
 .x-partner{width:100%;padding:10px 14px;gap:12px}.x-partner img{height:20px}.x-partner span{font-size:11px;padding-left:12px}
 .x-scroll{display:none}
 .x-lchead{left:18px;right:18px;top:calc(var(--x-navh) + 14px)}
 .x-lchead h2{font-size:24px}
 .x-cards{left:18px;right:18px;width:auto;top:auto;bottom:24px;height:auto;min-height:340px}
 .x-card{top:auto;bottom:0}
 .x-card h3{font-size:36px}.x-card h3.long{font-size:28px}
 .x-card p.d{font-size:14px;margin-top:10px}
 .x-plats{margin-top:14px;gap:8px}.x-plat{padding:9px 12px}.x-plat .ic{width:32px;height:32px}
 .x-plat .more{display:none}
 .x-ai-line{font-size:12.5px}
 .x-rail{right:14px;top:calc(var(--x-navh) + 116px);transform:none;gap:12px}.x-rail .x-st span{display:none}
 .x-hudon .x-rail{opacity:0}
 .x-aibar{display:none}
 .x-tag,.x-sn{display:none}
 .x-hud{left:18px;right:18px;width:auto;top:calc(var(--x-navh) + 100px);bottom:auto;padding:10px 12px}
 .x-hud .mx{margin-top:8px;gap:6px}.x-m:nth-child(n+5){display:none}
 .x-m b{font-size:13px}.x-m small{font-size:9.5px}.x-m svg{display:none}
 .x-ev,.x-hud .bot{display:none}
 .x-hud .ttl{font-size:12.5px}.x-hud .sub2{font-size:10px}
}
@media (prefers-reduced-motion:reduce){.x-scroll i::after,.x-aibar .flow i{animation:none}}

/* neo menu: chừa chỗ cho thanh điều hướng + thanh thông báo */
body.home main > section[id]:not(#vong-doi),body.home .cta-sec{scroll-margin-top:var(--x-navh)}
body.home .cta-box .btn.pri{background:#fff;color:#0b5fa8;box-shadow:0 10px 26px rgba(0,0,0,.25)}
/* cảnh 3D ra khỏi màn hình → ẩn nhãn nổi */
.x-off .x-tag,.x-off .x-sn{opacity:0!important}