/* =====================================================================
   TRANG CHỦ dirits.net (bản 2 + bảng giá nhiều sản phẩm) — trang tĩnh, phục vụ tại "/" qua nginx.
   Ảnh: tận dụng ảnh web cũ (/assets/img/*.jpg) + ảnh bìa 27 video YouTube thật (i.ytimg.com).
   Toàn bộ tên lớp gọn, không dùng thư viện CSS => tải nhanh, không chặn hiển thị.
   ===================================================================== */
:root{
  --navy:#0b1736; --navy2:#13244f; --deep:#060c1e; --blue:#2563eb; --cyan:#22c3e6; --green:#22c55e;
  --orange:#f59e0b; --ink:#0f172a; --muted:#5b6478; --line:#e5e9f2; --bg:#f5f7fb; --card:#fff;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:76px}
body{font-family:"Be Vietnam Pro",system-ui,-apple-system,"Segoe UI",sans-serif;color:var(--ink);background:var(--bg);line-height:1.55;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{max-width:100%}
button{font-family:inherit}
.wrap{max-width:1180px;margin:0 auto;padding:0 24px}
[hidden]{display:none!important}

/* ---------- Nút ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:10px;font-weight:700;font-size:15px;padding:12px 22px;border:0;cursor:pointer;white-space:nowrap;transition:transform .15s,box-shadow .15s,background .15s}
.btn:hover{transform:translateY(-1px)}
.btn-sm{padding:9px 16px;font-size:14px}
.btn-xl{padding:16px 28px;font-size:16.5px;border-radius:12px}
.btn-pri{background:linear-gradient(135deg,#22c55e,#16a34a);color:#fff;box-shadow:0 8px 24px rgba(34,197,94,.35)}
.btn-blue{background:var(--blue);color:#fff;box-shadow:0 8px 24px rgba(37,99,235,.3)}
.btn-ghost{background:rgba(255,255,255,.08);color:#fff;border:1px solid rgba(255,255,255,.22)}
.btn-line{background:#fff;color:var(--ink);border:1px solid var(--line)}
.btn-line:hover{border-color:var(--blue);color:var(--blue)}
.btn-play{background:rgba(255,255,255,.1);color:#fff;border:1px solid rgba(255,255,255,.25)}
.btn-play i{font-style:normal;width:26px;height:26px;border-radius:50%;background:#ef4444;display:grid;place-items:center;font-size:11px}
.btn-yt{background:#ff0000;color:#fff}.btn-fb{background:#1877f2;color:#fff}.btn-zl{background:#0068ff;color:#fff}

/* ---------- Thanh menu (trong suốt trên phần đầu) ---------- */
.nav{position:sticky;top:0;z-index:30;background:rgba(6,12,30,.62);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid rgba(255,255,255,.08)}
.nav .wrap{display:flex;align-items:center;height:68px;gap:24px}
.brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:19px;letter-spacing:.3px;white-space:nowrap}
.brand img{width:34px;height:34px;border-radius:8px;background:#fff;object-fit:contain}
.menu{display:flex;gap:22px;margin-left:auto;color:#c8d3ee;font-size:14.5px;font-weight:500}
.menu a:hover{color:#fff}
.soc{display:flex;gap:6px}
.soc a{width:36px;height:36px;border-radius:10px;display:grid;place-items:center;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);transition:.15s}
.soc a:hover{background:rgba(255,255,255,.18);transform:translateY(-1px)}
.acc{display:flex;gap:10px;align-items:center}
.who{display:flex;align-items:center;gap:8px;color:#fff;font-weight:600;font-size:14px;max-width:180px}
.who i{font-style:normal;width:32px;height:32px;border-radius:50%;background:linear-gradient(135deg,var(--blue),var(--cyan));display:grid;place-items:center;font-weight:800;flex:none}
.who span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ---------- Phần đầu: tường ảnh video nghiêng 3D ---------- */
.hero2{position:relative;overflow:hidden;background:var(--deep);color:#fff;padding:90px 0 70px;margin-top:-68px}
.wall{position:absolute;inset:-10% -20% -10% 30%;display:grid;grid-template-columns:repeat(4,1fr);gap:14px;
  transform:perspective(1400px) rotateY(-24deg) rotateX(10deg) rotateZ(-4deg);transform-origin:left center;opacity:.9}
.wall .col{display:grid;gap:14px;align-content:start;animation:troi 38s linear infinite;will-change:transform}
.wall .col:nth-child(2){animation-duration:46s;margin-top:-120px}
.wall .col:nth-child(3){animation-duration:42s;margin-top:-60px}
.wall .col:nth-child(4){animation-duration:50s;margin-top:-180px}
.wall img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:12px;display:block;background:#101c3d;box-shadow:0 12px 30px rgba(0,0,0,.5)}
@keyframes troi{to{transform:translateY(-50%)}}
.hero2:before{content:"";position:absolute;inset:0;z-index:1;
  background:linear-gradient(90deg,var(--deep) 0%,var(--deep) 34%,rgba(6,12,30,.82) 52%,rgba(6,12,30,.25) 80%,rgba(6,12,30,.55) 100%),
             linear-gradient(0deg,var(--deep) 0%,transparent 30%)}
.hero2 .wrap{position:relative;z-index:2;display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center;min-height:560px;padding-top:68px}
.kicker{display:inline-flex;align-items:center;gap:10px;font-size:13.5px;font-weight:600;color:#a5f3fc;background:rgba(34,195,230,.12);border:1px solid rgba(34,195,230,.35);border-radius:99px;padding:6px 14px 6px 6px}
.kicker b{background:var(--cyan);color:#06202b;border-radius:99px;padding:2px 9px;font-size:12px}
.hero2 h1{font-size:56px;line-height:1.04;font-weight:900;letter-spacing:-1.5px;margin:20px 0 18px;text-wrap:balance}
.hero2 h1 .hl{white-space:nowrap;background:linear-gradient(90deg,#4ade80,#22c3e6 60%,#60a5fa);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero2 .lead{font-size:18.5px;color:#c8d3ee;max-width:540px}
.hero2 .cta{display:flex;gap:12px;flex-wrap:wrap;margin:30px 0 26px}
/* Nút "Mua Add-in ngay": to nhất, màu vàng cam nổi trên nền xanh đậm, viền sáng chạy + nhịp đập nhẹ để hút mắt */
.btn-buy{position:relative;overflow:hidden;flex:1 1 100%;max-width:560px;justify-content:flex-start;gap:14px;padding:16px 22px;border-radius:16px;
  background:linear-gradient(135deg,#fbbf24 0%,#f59e0b 45%,#f97316 100%);color:#2b1600;text-align:left;
  box-shadow:0 14px 34px rgba(249,115,22,.45),0 0 0 1px rgba(255,255,255,.35) inset;animation:buyPulse 2.6s ease-in-out infinite}
.btn-buy:hover{transform:translateY(-2px);box-shadow:0 18px 40px rgba(249,115,22,.6),0 0 0 1px rgba(255,255,255,.45) inset}
.btn-buy>i{font-style:normal;flex:none;width:46px;height:46px;border-radius:12px;display:grid;place-items:center;font-size:24px;background:rgba(255,255,255,.35)}
.btn-buy>span{display:flex;flex-direction:column;line-height:1.2;min-width:0}
.btn-buy b{font-size:21px;font-weight:900;letter-spacing:-.3px}
.btn-buy small{font-size:14px;font-weight:700;color:#5a2d00;white-space:normal}
.btn-buy>em{margin-left:auto;font-style:normal;font-size:26px;font-weight:900;transition:transform .2s}
.btn-buy:hover>em{transform:translateX(4px)}
.btn-buy::after{content:"";position:absolute;top:0;left:-60%;width:40%;height:100%;transform:skewX(-20deg);
  background:linear-gradient(90deg,rgba(255,255,255,0),rgba(255,255,255,.55),rgba(255,255,255,0));animation:buyShine 3.2s ease-in-out infinite}
@keyframes buyPulse{0%,100%{box-shadow:0 14px 34px rgba(249,115,22,.45),0 0 0 0 rgba(251,191,36,.55)}50%{box-shadow:0 14px 34px rgba(249,115,22,.45),0 0 0 10px rgba(251,191,36,0)}}
@keyframes buyShine{0%,55%{left:-60%}100%{left:130%}}
@media (prefers-reduced-motion:reduce){.btn-buy,.btn-buy::after{animation:none}}
.btn-line2{background:rgba(255,255,255,.06);color:#bbf7d0;border:1.5px solid rgba(74,222,128,.6)}
.btn-line2:hover{background:rgba(74,222,128,.14);color:#fff}
.nav .menu a.nav-mua{color:#fbbf24;font-weight:800}
.proof{display:flex;gap:26px;flex-wrap:wrap;color:#9fb0d6;font-size:13.5px}
.proof b{display:block;color:#fff;font-size:24px;font-weight:800;line-height:1.2}
/* Thẻ video nổi bật bên phải */
.spot{justify-self:end;width:100%;max-width:460px;background:rgba(10,20,46,.72);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid rgba(255,255,255,.14);border-radius:22px;padding:12px;box-shadow:0 40px 90px rgba(0,0,0,.55)}
.spot .th{position:relative;border-radius:14px;overflow:hidden;cursor:pointer;background:#101c3d;aspect-ratio:16/9}
.spot .th img{width:100%;height:100%;object-fit:cover;display:block}
.pl{position:absolute;inset:0;display:grid;place-items:center;background:linear-gradient(180deg,transparent 40%,rgba(0,0,0,.45))}
.pl span{width:74px;height:74px;border-radius:50%;background:#fff;color:#ef4444;display:grid;place-items:center;font-size:26px;box-shadow:0 0 0 12px rgba(255,255,255,.2);animation:nhip 2.2s ease-in-out infinite}
@keyframes nhip{50%{box-shadow:0 0 0 20px rgba(255,255,255,.08)}}
.spot .dur{position:absolute;right:10px;bottom:10px;background:rgba(0,0,0,.7);font-size:12px;padding:3px 7px;border-radius:6px}
.spot .meta{display:flex;gap:12px;align-items:center;padding:12px 6px 4px}
.spot .meta img{width:38px;height:38px;border-radius:10px;background:#fff;object-fit:contain;flex:none}
.spot .meta b{display:block;font-size:15px;line-height:1.35}.spot .meta small{color:#9fb0d6}
.spot .row{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;padding:10px 6px 4px}
.spot .row img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:8px;opacity:.85;cursor:pointer;background:#101c3d;transition:opacity .15s}
.spot .row img:hover{opacity:1}

/* ---------- Dải chạy các hệ thống ---------- */
.ticker{background:linear-gradient(90deg,#16a34a,#0891b2,#2563eb);color:#fff;overflow:hidden;white-space:nowrap;font-weight:800;font-size:15px;letter-spacing:.5px}
.ticker div{display:inline-block;padding:14px 0;animation:chay 30s linear infinite}
.ticker span{margin:0 26px}.ticker span:before{content:"✦";margin-right:26px;opacity:.6}
@keyframes chay{to{transform:translateX(-50%)}}

/* ---------- Khối nội dung chung ---------- */
section{padding:84px 0}
.h2{text-align:center;max-width:720px;margin:0 auto 46px}
.h2 small{color:var(--blue);font-weight:700;letter-spacing:1.5px;font-size:13px;text-transform:uppercase}
.h2 h2{font-size:36px;line-height:1.2;margin:8px 0 12px;letter-spacing:-.3px}
.h2 p{color:var(--muted);font-size:16.5px}

/* ---------- Sản phẩm (chỉ hiện khi có từ 2 add-in bán trên web) ---------- */
.prods{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.prods.n2{grid-template-columns:repeat(2,1fr);max-width:860px;margin:0 auto}
.prod{background:#fff;border:1px solid var(--line);border-radius:22px;overflow:hidden;display:flex;flex-direction:column;transition:.2s}
.prod:hover{transform:translateY(-4px);box-shadow:0 24px 50px rgba(15,23,42,.10)}
.prod .pic{position:relative;background:#fff;border-bottom:1px solid var(--line)}
.prod .pic img{width:100%;aspect-ratio:16/9;object-fit:cover;display:block}
.prod .badge{position:absolute;left:14px;top:14px;font-size:12px;font-weight:700;padding:4px 10px;border-radius:99px;color:#fff;background:#16a34a}
.prod .body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1}
.prod h3{font-size:21px;display:flex;align-items:center;gap:10px}
.prod h3 i{font-style:normal;font-size:11px;font-weight:700;padding:3px 8px;border-radius:6px;background:#eef2ff;color:#3730a3}
.prod p{color:var(--muted);font-size:14.5px}
.prod .from{margin-top:auto;padding-top:10px;font-size:13px;color:var(--muted)}
.prod .from b{font-size:22px;color:var(--ink)}
.prod .act{display:flex;gap:10px}.prod .act .btn{flex:1;padding:11px 10px;font-size:14px}

/* ---------- Giải pháp theo hệ thống: ô lớn nền ảnh video ---------- */
.sys{display:grid;grid-template-columns:1.3fr 1fr 1fr;grid-auto-rows:230px;gap:18px}
.tile{position:relative;border-radius:22px;overflow:hidden;color:#fff;display:flex;flex-direction:column;justify-content:flex-end;padding:14px;isolation:isolate;background:var(--navy);cursor:pointer}
.tile img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:-2;transition:transform .5s}
.tile:after{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(180deg,rgba(6,12,30,0) 40%,rgba(6,12,30,.45))}
.tile:hover img{transform:scale(1.06)}
.tile.big{grid-row:span 2}
.tile .n{position:absolute;top:16px;left:16px;font-size:12px;font-weight:700;background:rgba(255,255,255,.92);color:var(--navy);border-radius:99px;padding:4px 10px}
.tile .cap{background:rgba(6,12,30,.72);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,.12);border-radius:14px;padding:12px 60px 12px 16px}
.tile h3{font-size:22px;font-weight:800}.tile.big h3{font-size:30px}
.tile p{color:#dbe6ff;font-size:14px;margin-top:4px}
.tile .go{position:absolute;right:26px;bottom:26px;width:40px;height:40px;border-radius:50%;background:#fff;color:var(--navy);display:grid;place-items:center;font-weight:800}

/* ---------- Vì sao chọn Dirit (ảnh web cũ) ---------- */
.grid4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.why{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:22px;transition:.2s}
.why:hover{transform:translateY(-4px);box-shadow:0 20px 40px rgba(15,23,42,.08)}
.why img{width:100%;aspect-ratio:16/10;object-fit:contain;border-radius:12px;background:#fff;display:block}
.why h3{font-size:17px;margin:16px 0 6px}
.why p{font-size:14.5px;color:var(--muted)}

/* ---------- Khối video (nền tối) ---------- */
.vsec{background:var(--deep);color:#fff;padding:80px 0}
.vsec .h2 h2{color:#fff}.vsec .h2 p{color:#9fb0d6}.vsec .h2 small{color:#60a5fa}
.vtabs{display:flex;justify-content:center;gap:8px;flex-wrap:wrap;margin-bottom:28px}
.vtab{padding:9px 16px;border-radius:99px;border:1px solid rgba(255,255,255,.2);color:#c8d3ee;font-weight:600;font-size:14px;background:transparent;cursor:pointer}
.vtab em{font-style:normal;opacity:.6;margin-left:4px}.vtab.on{background:#fff;color:var(--navy);border-color:#fff}
.vgrid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.vcard{border-radius:16px;overflow:hidden;background:#101c3d;border:1px solid rgba(255,255,255,.08);cursor:pointer;transition:transform .2s}
.vcard:hover{transform:translateY(-3px)}
.vcard .th{position:relative;aspect-ratio:16/9;background:#0b1530}
.vcard .th img{width:100%;height:100%;object-fit:cover;display:block}
.vcard .pl{background:none}
.vcard .pl span{width:48px;height:48px;font-size:17px;box-shadow:none;animation:none;background:rgba(255,255,255,.95)}
.vcard .tg{position:absolute;left:10px;top:10px;font-size:11.5px;font-weight:700;padding:3px 9px;border-radius:99px;background:rgba(6,12,30,.85);color:#8be6fa}
.vcard .tt{margin:12px 14px;font-size:14px;font-weight:600;line-height:1.4;color:#e6ecfa;height:2.8em;overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}
.vmore{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-top:28px}

/* ---------- Bảng giá nhiều sản phẩm ---------- */
.price{background:linear-gradient(180deg,#fff,var(--bg))}
.ptabs{display:flex;justify-content:center;gap:10px;margin-bottom:18px;flex-wrap:wrap}
.ptab{padding:11px 20px;border-radius:12px;border:1px solid var(--line);background:#fff;font-weight:700;font-size:15px;cursor:pointer;color:var(--ink)}
.ptab.on{background:var(--navy);color:#fff;border-color:var(--navy)}
.opts{display:flex;justify-content:center;gap:22px;margin-bottom:30px;flex-wrap:wrap;font-size:14px;color:var(--muted);align-items:center}
.seg{display:inline-flex;border:1px solid var(--line);border-radius:99px;background:#fff;overflow:hidden;margin-left:8px;vertical-align:middle}
.seg button{padding:8px 16px;font-weight:600;color:#334155;background:none;border:0;cursor:pointer;font-size:14px}
.seg button.on{background:var(--blue);color:#fff}
/* Sản phẩm chỉ Standard: thẻ theo thời hạn (như bảng giá cũ) */
.plans{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.plan{background:#fff;border:1px solid var(--line);border-radius:20px;padding:26px 22px;position:relative;display:flex;flex-direction:column}
.plan.hot{border:2px solid var(--blue);box-shadow:0 24px 50px rgba(37,99,235,.15)}
.plan .tag{white-space:nowrap;position:absolute;top:-13px;left:50%;transform:translateX(-50%);background:var(--blue);color:#fff;font-size:12px;font-weight:700;padding:4px 12px;border-radius:99px}
.plan h4{font-size:16px;color:var(--muted);font-weight:600}
.plan .p{font-size:30px;font-weight:800;margin:8px 0 2px}
.plan .old{min-height:24px}
.plan s{color:#94a3b8;font-size:14px}
.save{display:inline-block;background:#fef3c7;color:#b45309;font-size:12px;font-weight:700;border-radius:6px;padding:2px 8px;margin-left:6px}
.plan .pm{font-size:13px;color:var(--muted);margin-top:4px}
.plan ul,.tier ul{list-style:none;display:grid;gap:9px;font-size:14px;color:#334155}
.plan ul{margin:18px 0 22px;flex:1}
.plan li:before,.tier li:before{content:"✓  ";color:var(--green);font-weight:800}
.plan .btn{width:100%}
/* Sản phẩm nhiều gói: thẻ Dùng thử / Standard / Pro */
.tiers{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;max-width:1080px;margin:0 auto}
.tiers.n2{grid-template-columns:repeat(2,1fr);max-width:760px}
.tiers.n1{grid-template-columns:1fr;max-width:420px}
.tier{background:#fff;border:1px solid var(--line);border-radius:20px;padding:26px;position:relative;display:flex;flex-direction:column}
.tier.best{border:2px solid var(--orange);box-shadow:0 24px 50px rgba(245,158,11,.15)}
.tier .top{position:absolute;top:-13px;left:24px;background:var(--orange);color:#fff;font-size:12px;font-weight:700;padding:4px 12px;border-radius:99px}
.tier .lv{align-self:flex-start;font-size:12px;font-weight:700;padding:3px 9px;border-radius:6px}
.lv.t1{background:#ecfeff;color:#0e7490}.lv.t0{background:#eef2ff;color:#3730a3}.lv.t2{background:#fef3c7;color:#b45309}
.tier h4{font-size:20px;margin:10px 0 0}
.tier .p{font-size:32px;font-weight:800;margin:14px 0 0;line-height:1.2}.tier .p small{font-size:14px;color:var(--muted);font-weight:500}
.tier .old{display:block;min-height:22px;font-size:14px}.tier .old s{color:#94a3b8}
.tier .btn{width:100%;margin:16px 0}
.btn-pro{background:linear-gradient(135deg,#f59e0b,#ea580c);color:#fff;box-shadow:0 8px 24px rgba(245,158,11,.35)}
.btn-trial{background:#0e7490;color:#fff}
.pmore{text-align:center;margin-top:24px}.pmore a{color:var(--blue);font-weight:700}
.pload{text-align:center;color:var(--muted);padding:30px 0}
/* Gói Công ty (mọi add-in có phí): dải ngang nền xanh đậm dưới các thẻ giá */
.cty{position:relative;display:grid;grid-template-columns:auto 1fr auto;gap:28px;align-items:center;margin:26px auto 0;max-width:1080px;
  padding:26px 30px;border-radius:20px;color:#fff;background:linear-gradient(135deg,#16314F,#2B6CB8);box-shadow:0 24px 50px rgba(22,49,79,.25)}
.cty-tag{position:absolute;top:-12px;right:24px;background:#f59e0b;color:#fff;font-size:11.5px;font-weight:800;letter-spacing:.6px;text-transform:uppercase;padding:4px 12px;border-radius:99px}
.cty-dau{display:flex;align-items:center;gap:14px}
.cty-dau i{font-style:normal;font-size:38px;line-height:1}
.cty-lv{display:inline-block;background:rgba(255,255,255,.14);font-size:12px;font-weight:800;letter-spacing:.5px;text-transform:uppercase;padding:3px 10px;border-radius:99px}
.cty-dau b{display:block;font-size:28px;font-weight:800;line-height:1.2;margin-top:6px}
.cty-dau small{display:block;color:#c8d3ee;font-size:13.5px}
.cty ul{list-style:none;display:grid;grid-template-columns:1fr 1fr;gap:8px 22px;font-size:14px;color:#e2e8f0}
.cty li:before{content:"✓  ";color:#4ade80;font-weight:800}
.cty-nut{display:flex;flex-direction:column;gap:10px;min-width:210px}
.btn-zalo{background:#0068ff;color:#fff}.btn-zalo:hover{background:#0057d6}
.btn-zalo .zl{background:#fff;color:#0068ff;font-size:10px;font-weight:800;border-radius:5px;padding:2px 5px}
.btn-mail{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.7)}.btn-mail:hover{background:rgba(255,255,255,.1)}
@media (max-width:900px){.cty{grid-template-columns:1fr;gap:18px;padding:26px 22px}.cty-nut{flex-direction:row;min-width:0}.cty-nut .btn{flex:1}}
@media (max-width:520px){.cty ul{grid-template-columns:1fr}.cty-nut{flex-direction:column}}

/* ---------- Cam kết / Cộng đồng / CTA / Footer ---------- */
.promise{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.pr{background:#fff;border:1px solid var(--line);border-radius:20px;padding:24px}
.pr .ic{width:48px;height:48px;border-radius:14px;display:grid;place-items:center;font-size:22px;color:#fff;margin-bottom:14px}
.pr h3{font-size:18px;margin-bottom:6px}.pr p{color:var(--muted);font-size:14.5px}
.follow{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:18px}
.fw{border-radius:22px;overflow:hidden;background:#fff;border:1px solid var(--line);display:flex;flex-direction:column}
.fw .bn{position:relative;height:150px;display:grid;grid-template-columns:repeat(3,1fr);gap:4px;background:var(--navy)}
.fw .bn img{width:100%;height:100%;object-fit:cover;display:block}
.fw .bn .lg{position:absolute;left:18px;bottom:-24px;width:56px;height:56px;border-radius:16px;background:#fff;display:grid;place-items:center;box-shadow:0 10px 24px rgba(0,0,0,.18)}
.fw .bn .lg svg{width:34px;height:34px}
.fw .bd2{padding:34px 20px 20px;display:flex;flex-direction:column;gap:6px;flex:1}
.fw h3{font-size:19px}.fw .hd{color:var(--muted);font-size:13.5px}
.fw p{color:#334155;font-size:14.5px;margin:4px 0 12px}
.fw .btn{margin-top:auto;align-self:flex-start}
.fw.fb .bn{background:linear-gradient(135deg,#1877f2,#0b4fb3);display:block}
.fw.zl .bn{background:linear-gradient(135deg,#0068ff,#22c3e6);display:block}
.fw .bn .big{position:absolute;inset:0;display:grid;place-items:center;color:rgba(255,255,255,.95);font-weight:800;font-size:26px;letter-spacing:.5px}
.band{background:linear-gradient(120deg,var(--blue),#1d4ed8 40%,var(--navy2));color:#fff;border-radius:26px;padding:48px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.band h2{font-size:30px;margin-bottom:6px}.band p{color:#dbe6ff}
.band .btns{display:flex;gap:12px;flex-wrap:wrap}
footer{background:var(--navy);color:#aab7d6;padding:56px 0 30px;font-size:14.5px;margin-top:84px}
footer .cols{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:36px}
footer h5{color:#fff;font-size:15px;margin-bottom:14px}
footer p,footer .cols a{display:block;margin-bottom:9px}
footer .cols a:hover{color:#fff}
footer p a{display:inline!important;margin:0!important}   /* link email / điện thoại nằm cùng dòng với nhãn */
.fsoc{display:flex;gap:10px;margin-top:14px;flex-wrap:wrap}
.fsoc a{display:inline-flex!important;align-items:center;gap:8px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:10px;padding:8px 12px;color:#dbe6ff;font-size:13.5px;margin:0!important}
footer .cp{border-top:1px solid rgba(255,255,255,.1);margin-top:30px;padding-top:20px;font-size:13px}

/* ---------- Khung xem video (bấm mới tải YouTube => trang nhẹ) ---------- */
.lb{position:fixed;inset:0;z-index:100;background:rgba(3,7,18,.86);display:grid;place-items:center;padding:20px}
.lb .box{width:min(1100px,100%);position:relative}
.lb .fr{position:relative;aspect-ratio:16/9;background:#000;border-radius:14px;overflow:hidden;box-shadow:0 30px 80px rgba(0,0,0,.6)}
.lb iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.lb video{position:absolute;inset:0;width:100%;height:100%;background:#000}
/* xem ảnh lớn: khung theo kích thước ảnh, nền trắng cho ảnh family nền trong */
.lb .fr.anh{aspect-ratio:auto;background:#fff;display:grid;place-items:center;padding:12px}
.lb .fr.anh img{max-width:100%;max-height:78vh;object-fit:contain;display:block}
.vloi{position:absolute;inset:0;display:grid;place-items:center;color:#c8d3ee;font-size:14px;padding:20px;text-align:center}
.lb .ttl{color:#e6ecfa;font-weight:600;margin-top:12px;font-size:15px}
.lb .x{position:absolute;top:-46px;right:0;width:38px;height:38px;border-radius:50%;border:0;background:rgba(255,255,255,.14);color:#fff;font-size:22px;cursor:pointer}

/* ---------- Giảm chuyển động khi máy khách yêu cầu ---------- */
/* ---------- Credit Trợ lý AI (credit-ban.js): gói cố định + ô nhập số credit tự chọn ---------- */
.cb-trong{display:none!important}
.cb-sec{--vio:#5b3fd6;--vio-soft:#f1edff;padding-top:0}
.cb-sec .h2 small{color:var(--vio)}
.cb-packs{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:16px}
.cb-pk{position:relative;background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px 18px;display:flex;flex-direction:column;gap:4px}
.cb-pk.cb-pop{border:2px solid #8b6cf0;box-shadow:0 18px 40px rgba(91,63,214,.14)}
.cb-tg{position:absolute;top:-11px;left:16px;font-size:11px;font-weight:800;border-radius:7px;padding:3px 9px;color:#fff;background:#ea580c;letter-spacing:.3px}
.cb-tg.cb-save{background:#16a34a}
.cb-cr{font-size:24px;font-weight:800}.cb-cr small{font-size:14px;color:var(--muted);font-weight:600}
.cb-ds{color:var(--muted);font-size:13.5px}
.cb-pz{font-size:24px;font-weight:800;margin-top:6px}.cb-pz s{font-size:13.5px;color:#94a3b8;font-weight:600}
.cb-per{font-size:13px;color:var(--muted)}.cb-per b{color:#16a34a}
.cb-pk .btn{margin-top:auto;width:100%}
.cb-pk .cb-per,.cb-co .cb-pz{margin-bottom:12px}
.cb-co{background:linear-gradient(180deg,#f8f7ff,#fff)}
.cb-btn-vio{background:linear-gradient(135deg,#6d4ae6,#5b3fd6);color:#fff;box-shadow:0 8px 22px rgba(91,63,214,.3)}
.cb-btn-vio.cb-off{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}
.cb-cus{margin-top:18px;background:linear-gradient(135deg,#f8f6ff,#fff 60%);border:1.5px dashed #c9bdfb;border-radius:16px;padding:20px 22px;display:grid;grid-template-columns:1.1fr 1fr auto;gap:16px 26px;align-items:center}
.cb-cus h3{font-size:18px}.cb-cus p{color:var(--muted);font-size:14px}
.cb-in{display:flex;align-items:center;border:1.5px solid #c9bdfb;border-radius:12px;background:#fff;overflow:hidden;width:max-content;max-width:100%;margin-top:10px}
.cb-in:focus-within{border-color:var(--vio);box-shadow:0 0 0 3px rgba(109,74,230,.15)}
.cb-in button{border:0;background:none;width:42px;height:46px;font-size:22px;color:var(--vio);cursor:pointer;font-weight:700}
.cb-in button:hover{background:var(--vio-soft)}
.cb-in input{border:0;outline:0;width:120px;text-align:center;font:inherit;font-size:21px;font-weight:800;font-variant-numeric:tabular-nums;min-width:0;background:none}
.cb-in span{padding-right:12px;color:var(--muted);font-weight:600}
.cb-chips{display:flex;gap:6px;flex-wrap:wrap;margin-top:10px}
.cb-chips button{border:1px solid var(--line);background:#fff;border-radius:99px;padding:3px 11px;font-size:13px;cursor:pointer;color:#334155}
.cb-chips button:hover{border-color:var(--vio);color:var(--vio)}
.cb-big{font-size:28px;font-weight:800;line-height:1.15;font-variant-numeric:tabular-nums}.cb-big s{display:block;font-size:13.5px;color:#94a3b8;font-weight:600}
.cb-cus .cb-per{margin-top:4px}
.cb-up{display:block;text-align:left;font-size:13.5px;margin-top:8px;color:#92400e;background:#fffbeb;border:1px solid #fde68a;border-radius:9px;padding:6px 10px;cursor:pointer}
.cb-bad{color:#b91c1c;font-size:13.5px;margin-top:6px}
.cb-cus .btn{min-width:190px}
.cb-more{text-align:center;margin-top:18px;font-weight:600;color:var(--vio)}
.cb-more a:hover{text-decoration:underline}
@media (max-width:900px){.cb-cus{grid-template-columns:1fr}.cb-cus .btn{width:100%}}

@media (prefers-reduced-motion:reduce){
  .wall .col,.ticker div,.pl span{animation:none}
  html{scroll-behavior:auto}
}

/* ---------- Máy tính bảng / điện thoại ---------- */
@media (max-width:1020px){.nav .soc{display:none}.menu{gap:16px}}
@media (max-width:860px){
  .menu{display:none}
  section{padding:56px 0}
  .h2 h2{font-size:28px}
  .hero2{padding:70px 0 40px}
  .hero2 .wrap{grid-template-columns:1fr;min-height:0}
  .hero2 h1{font-size:40px;letter-spacing:-.8px}
  .wall{inset:0 -60% 40% -10%;opacity:.35}
  .hero2:before{background:linear-gradient(180deg,rgba(6,12,30,.6),var(--deep) 55%)}
  .spot{justify-self:stretch;max-width:none}
  .prods,.prods.n2,.tiers,.tiers.n2,.promise,.follow{grid-template-columns:1fr}
  .sys{grid-template-columns:1fr 1fr;grid-auto-rows:180px}.tile.big{grid-column:span 2;grid-row:span 1}
  .vgrid,.grid4,.plans{grid-template-columns:1fr 1fr}
  .band{flex-direction:column;align-items:flex-start;padding:28px}
  footer .cols{grid-template-columns:1fr}
}
@media (max-width:520px){
  .wrap{padding:0 16px}
  .nav .wrap{gap:8px}.brand{font-size:15px}.brand img{width:30px;height:30px}
  .nav .btn-sm{padding:8px 11px;font-size:13px}
  .who span{display:none}
  .hero2 h1{font-size:33px}.hero2 h1 .hl{white-space:normal}.hero2 .lead{font-size:16px}
  .hero2 .cta .btn{flex:1}
  .hero2 .cta .btn-buy{flex:1 1 100%;padding:14px 16px}.btn-buy b{font-size:19px}.btn-buy>i{width:40px;height:40px;font-size:21px}
  .proof{gap:18px}.proof b{font-size:20px}
  .tile h3{font-size:19px}.tile.big h3{font-size:24px}
  /* ô nhỏ 2 cột trên điện thoại chỉ đủ chỗ cho tên nhóm: ẩn mô tả + nút mũi tên */
  .tile:not(.big) .cap{padding:10px 12px}.tile:not(.big) p,.tile:not(.big) .go{display:none}
  .vcard .tt{font-size:13px;margin:10px 12px}
  .vgrid{gap:12px}.grid4,.plans{grid-template-columns:1fr}
  .opts{gap:12px}
  .lb .x{top:-44px}
}