/* Trang "Về chúng tôi" (/gioi-thieu). Nhịp điệu thị giác: hero → câu chuyện (tách đôi) → so sánh trước/sau → dải bước → dải tối (nguyên tắc) → thẻ chuyển (nhóm người dùng) → bento (sản phẩm) → số lớn (giá trị) → mốc (lộ trình) → CTA → liên hệ.
   Mỗi khối là một "mặt" khác nhau (nền sáng/xám/tối/xanh) thay vì lặp thẻ trắng. Token màu/bo góc của dự án. Nội dung do quản trị viết (class ab-*), JS: p-about.js */
.ab-hero{position:relative;overflow:hidden;background:radial-gradient(900px 380px at 88% -10%,#cdeee3 0,transparent 62%),radial-gradient(700px 300px at -5% 115%,#dce8ff 0,transparent 60%),#f4faf8;border-bottom:1px solid var(--line);padding:6px 0 38px}
.ab-hero::after{content:"";position:absolute;right:-60px;top:20px;width:340px;height:340px;background:radial-gradient(circle at 30% 30%,rgba(12,156,121,.16),transparent 62%);border-radius:50%;pointer-events:none}
.ab-hero .wrap{position:relative;z-index:1}
.ab-hero-in{max-width:840px;padding:10px 0 6px}
.ab-eye{display:inline-flex;align-items:center;gap:7px;font-size:11px;font-weight:800;letter-spacing:.12em;text-transform:uppercase;color:var(--mint)}
.ab-eye::before{content:"";width:22px;height:2px;background:currentColor;border-radius:2px}
.ab-hero h1{margin:6px 0 12px;font-size:48px;line-height:1.08;font-weight:800;letter-spacing:-1px;color:var(--ink);text-wrap:balance}
.ab-hero .lead{margin:0 0 22px;max-width:700px;font-size:17.5px;line-height:1.65;color:var(--ink-2)}
.ab-hctas{display:flex;flex-wrap:wrap;gap:10px}
.ab-stats{display:flex;flex-wrap:wrap;gap:0;margin-top:30px;background:#fff;border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--sh-1);width:fit-content;max-width:100%}
.ab-stats>div{display:flex;align-items:center;gap:12px;padding:14px 22px;border-right:1px solid var(--line-2)}
.ab-stats>div:last-child{border-right:0}
.ab-stats i{font-size:24px;color:var(--mint)}
.ab-stats b{display:block;font-size:26px;font-weight:800;letter-spacing:-.5px;color:var(--ink);font-variant-numeric:tabular-nums;line-height:1.05}
.ab-stats span{display:block;font-size:12px;color:var(--ink-3);margin-top:2px}

.ab{overflow:hidden}
.ab-in{max-width:var(--w,1180px);margin:0 auto;padding:0 16px}
.ab-sec{padding:68px 0;font-size:15px;line-height:1.75;color:var(--ink-2)}
.ab-band-soft{background:#f2f6f8;border-block:1px solid var(--line-2)}
.ab-h{max-width:780px;margin-bottom:30px}
.ab-center{margin-inline:auto;text-align:center}
.ab-center .ab-eye::before{display:none}
.ab-h h2,.ab-story h2{margin:8px 0 0;font-size:34px;line-height:1.16;font-weight:800;letter-spacing:-.7px;color:var(--ink);text-wrap:balance}
.ab-h .lead{margin:12px 0 0;font-size:16px;color:var(--ink-2)}
.ab p{margin:0 0 14px}
.ab b{color:var(--ink)}

/* 1. câu chuyện */
.ab-split{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(0,1fr);gap:48px;align-items:start}
.ab-lead{margin:16px 0 14px;font-size:19px;line-height:1.6;color:var(--ink);font-weight:600}
.ab-story p:not(.ab-lead){max-width:64ch}
.ab-quote{position:sticky;top:110px;margin:0;padding:30px 28px;border-radius:var(--r);background:linear-gradient(145deg,#0c9c79,#075e49);color:#fff;overflow:hidden}
.ab-quote::after{content:"";position:absolute;right:-40px;bottom:-40px;width:160px;height:160px;border-radius:50%;background:rgba(255,255,255,.08)}
.ab-quote i{font-size:40px;color:rgba(255,255,255,.4)}
.ab-quote p{margin:8px 0 18px;font-size:23px;line-height:1.38;font-weight:700;letter-spacing:-.3px;color:#fff}
.ab-quote span{font-size:12.5px;color:rgba(255,255,255,.8)}

/* 2. trước / sau */
.ab-vs{display:grid;grid-template-columns:minmax(0,1fr) 54px minmax(0,1.12fr);align-items:stretch;max-width:1020px;margin:0 auto}
.ab-vs-col{padding:26px 26px 22px;border-radius:var(--r)}
.ab-vs-col.is-old{background:#e9eef1;color:var(--ink-3)}
.ab-vs-col.is-new{background:#fff;border:2px solid var(--mint);box-shadow:0 18px 40px -22px rgba(12,156,121,.55);position:relative}
.ab-vs-h{display:flex;align-items:center;gap:8px;margin-bottom:14px;font-size:15px;font-weight:800;letter-spacing:-.1px}
.is-old .ab-vs-h{color:var(--ink-3)}.is-old .ab-vs-h i{color:#a3adbb;font-size:22px}
.is-new .ab-vs-h{color:var(--mint-d)}.is-new .ab-vs-h i{color:var(--mint);font-size:22px}
.ab-vs ul{list-style:none;margin:0;padding:0;display:grid;gap:13px}
.ab-vs li{display:flex;gap:10px;align-items:flex-start;font-size:14px;line-height:1.55}
.ab-vs li>i{flex:none;display:grid;place-items:center;width:20px;height:20px;margin-top:1px;border-radius:50%;font-size:11px}
.is-old li>i{background:#cfd7de;color:#fff}
.is-new li>i{background:var(--mint);color:#fff}
.is-old li b{color:var(--ink-2)}
.ab-vs-mid{display:grid;place-items:center}
.ab-vs-mid i{display:grid;place-items:center;width:38px;height:38px;border-radius:50%;background:var(--orange);color:#fff;font-size:18px;box-shadow:0 6px 14px -4px rgba(239,125,26,.6)}

/* 3. bốn bước */
.ab-steps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;position:relative}
.ab-steps::before{content:"";position:absolute;left:12%;right:12%;top:31px;height:2px;background:repeating-linear-gradient(90deg,var(--mint) 0 8px,transparent 8px 16px);opacity:.55}
.ab-steps li{position:relative;padding:0 18px;text-align:center}
.ab-steps li>i{display:grid;place-items:center;width:62px;height:62px;margin:0 auto 14px;border-radius:50%;background:#fff;border:2px solid var(--mint);color:var(--mint);font-size:28px;position:relative;z-index:1;box-shadow:0 0 0 7px #fff}
.ab-steps .n{position:absolute;left:50%;top:-14px;transform:translateX(18px);font-size:11px;font-weight:800;letter-spacing:.08em;color:var(--orange)}
.ab-steps b{display:block;font-size:17px;margin-bottom:6px}
.ab-steps p{margin:0;font-size:13.5px;line-height:1.65;color:var(--ink-3)}

/* 4. dải tối: nguyên tắc */
.ab-dark{background:linear-gradient(135deg,#0f1b34 0%,#1b3160 100%);color:#c7d4f0;position:relative}
.ab-dark::before{content:"";position:absolute;inset:0;background:radial-gradient(600px 240px at 90% 0,rgba(98,214,180,.14),transparent 70%);pointer-events:none}
.ab-dark .ab-in{position:relative}
.ab-dark .ab-h h2{color:#fff}.ab-dark .ab-eye{color:#62d6b4}
.ab-pr{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:28px}
.ab-pr>div{padding-top:18px;border-top:1px solid rgba(255,255,255,.18)}
.ab-pr .ico{display:grid;place-items:center;width:46px;height:46px;margin-bottom:14px;border-radius:50%;background:rgba(98,214,180,.14);color:#62d6b4;font-size:23px}
.ab-pr h3{margin:0 0 8px;font-size:17px;line-height:1.35;color:#fff}
.ab-pr p{margin:0;font-size:13.5px;line-height:1.7;color:#aebcdc}

/* 5. nhóm người dùng (thẻ chuyển) */
.ab-tabs{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:18px;padding:5px;background:#eef2f5;border-radius:var(--r);width:fit-content;max-width:100%}
.ab-tabs button{display:inline-flex;align-items:center;gap:8px;padding:10px 16px;border:0;border-radius:var(--r-s);background:transparent;font:600 13.5px/1 inherit;color:var(--ink-2);cursor:pointer;transition:background .15s,color .15s}
.ab-tabs button i{font-size:18px}
.ab-tabs button:hover{background:#fff;color:var(--ink)}
.ab-tabs button.on{background:var(--ink);color:#fff;box-shadow:0 4px 10px -4px rgba(20,33,61,.5)}
.ab-tabs button:focus-visible{outline:2px solid var(--blue);outline-offset:2px}
.ab-panel{--ac:var(--blue);--acs:var(--blue-s,#e6eefc);display:grid;grid-template-columns:minmax(0,1.5fr) minmax(0,1fr);gap:0;border:1px solid var(--line);border-radius:var(--r);background:#fff;overflow:hidden;margin-bottom:16px}
.ab-aud.is-tabs .ab-panel{margin-bottom:0}
.ab-aud.is-tabs .ab-panel[hidden]{display:none}
.ab-panel.c-mint{--ac:var(--mint);--acs:var(--mint-s)}
.ab-panel.c-violet{--ac:var(--violet);--acs:var(--violet-s,#efebfc)}
.ab-panel.c-orange{--ac:var(--orange);--acs:var(--orange-s,#fdefe1)}
.ab-pl{padding:30px 32px}
.ab-pl h3{margin:0 0 16px;font-size:22px;line-height:1.3;letter-spacing:-.3px;color:var(--ink)}
.ab-pl ul{list-style:none;margin:0 0 22px;padding:0;display:grid;gap:11px}
.ab-pl li{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:var(--ink-2)}
.ab-pl li i{flex:none;margin-top:3px;font-size:18px;color:var(--ac)}
.ab-more{margin-left:10px;font-weight:700;font-size:13.5px;color:var(--ac);white-space:nowrap}
.ab-pr2{display:grid;place-content:center;justify-items:center;gap:8px;padding:30px;text-align:center;background:linear-gradient(160deg,var(--acs),#fff 120%)}
.ab-pr2 i{font-size:64px;color:var(--ac)}
.ab-pr2 b{font-size:18px;color:var(--ink)}
.ab-pr2 span{max-width:24ch;font-size:13.5px;color:var(--ink-3)}

/* 6. bento */
.ab-bento{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));grid-auto-rows:minmax(150px,auto);gap:14px}
.ab-bento .bx{padding:22px;background:#fff;border:1px solid var(--line);border-radius:var(--r);transition:transform .15s,box-shadow .15s,border-color .15s}
.ab-bento .bx:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--mint)}
.ab-bento .big{grid-column:span 2;grid-row:span 2;background:linear-gradient(150deg,#1a1240,#3b2a8c);border:0;color:#cfc6f2;display:flex;flex-direction:column}
.ab-bento .big:hover{border-color:transparent}
.ab-bento .big h3{color:#fff;font-size:22px;margin:12px 0 10px}
.ab-bento .big p{color:#cfc6f2;font-size:14px}
.ab-bento .tag{align-self:flex-start;padding:3px 10px;border-radius:999px;background:rgba(167,148,240,.22);color:#d9ceff;font-size:11px;font-weight:800;letter-spacing:.06em;text-transform:uppercase}
.ab-bento .wide{grid-column:1/-1;display:flex;gap:16px;align-items:flex-start;background:linear-gradient(120deg,#fff,#f0f9f6)}
.ab-bento .ic{display:inline-grid;place-items:center;width:42px;height:42px;margin-bottom:12px;border-radius:var(--r);font-size:22px}
.ab-bento .wide .ic{margin:0;flex:none}
.ab-bento h3{margin:0 0 6px;font-size:16.5px;color:var(--ink)}
.ab-bento p{margin:0;font-size:13.5px;line-height:1.65}
.mock{flex:none;margin-top:auto;padding:12px;border-radius:var(--r);background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16)}
.mk-h{display:flex;align-items:center;gap:5px;margin-bottom:10px;font-size:11px;font-weight:700;color:#e4dbff}
.mk-h i{width:8px;height:8px;border-radius:50%;background:rgba(255,255,255,.35)}
.mk-h span{margin-left:8px}
.mk-r{display:flex;flex:none;align-items:center;gap:10px;margin-top:7px}
.mk-r b{width:42px;font-size:11px;font-weight:600;color:#b9acf0;font-variant-numeric:tabular-nums}
.mk-r .mkb{flex:1;display:block;padding:8px 12px;border-radius:var(--r-s);font-size:12.5px;font-weight:600;line-height:1.3;color:#fff;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.mkb.b1{background:#6b4fd8}.mkb.b2{background:#7d62e6}.mkb.b3{background:#5136b3}

/* 7. giá trị: số lớn, không thẻ */
.ab-values{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:28px}
.ab-values li{padding-top:16px;border-top:3px solid var(--ink)}
.ab-values li:nth-child(2){border-color:var(--mint)}.ab-values li:nth-child(3){border-color:var(--blue)}.ab-values li:nth-child(4){border-color:var(--orange)}
.ab-values .n{display:block;margin-bottom:10px;font-size:48px;line-height:1;font-weight:800;letter-spacing:-2px;color:#dfe5ea;font-variant-numeric:tabular-nums}
.ab-values b{display:block;margin-bottom:6px;font-size:18px;color:var(--ink)}
.ab-values p{margin:0;font-size:13.5px;line-height:1.7}

/* 8. lộ trình ngang */
.ab-road{list-style:none;margin:0 auto;padding:0;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;max-width:1060px;position:relative}
.ab-road::before{content:"";position:absolute;left:12.5%;right:12.5%;top:19px;height:3px;background:linear-gradient(90deg,var(--mint) 0 62%,#cfd8de 62%)}
.ab-road li{position:relative;padding:0 16px;text-align:center}
.ab-road .dot{position:relative;z-index:1;display:grid;place-items:center;width:40px;height:40px;margin:0 auto 14px;border-radius:50%;background:#fff;border:3px solid #cfd8de;color:#9aa6b2;font-size:18px}
.ab-road .done .dot{background:var(--mint);border-color:var(--mint);color:#fff}
.ab-road .now .dot{border-color:var(--orange);color:var(--orange);box-shadow:0 0 0 6px #ffe9cf}
.ab-road b{display:block;font-size:15.5px;margin-bottom:4px}
.ab-road p{margin:0;font-size:13px;line-height:1.6;color:var(--ink-3)}

/* 9. CTA */
.ab-cta-s{padding-bottom:56px}
.ab-cta{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);gap:28px;align-items:center;padding:38px 40px;border-radius:var(--r);background:linear-gradient(135deg,#0c9c79,#064e3d);color:#fff;position:relative;overflow:hidden}
.ab-cta::after{content:"";position:absolute;right:-70px;top:-70px;width:240px;height:240px;border-radius:50%;background:rgba(255,255,255,.08)}
.ab-cta h2{margin:0 0 10px;font-size:29px;line-height:1.22;letter-spacing:-.5px;color:#fff}
.ab-cta p{margin:0;color:#d6efe7;font-size:15px;line-height:1.7}
.ab-ctas{position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:10px;justify-content:flex-end}
.ab-ctas .btn-mint{background:#fff;border-color:#fff;color:var(--mint-d)}
.ab-ctas .btn-ghost{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.4);color:#fff}
.ab-ctas .btn-ghost:hover{background:rgba(255,255,255,.22)}

/* 10. liên hệ: một khối hai mặt (tối: kênh liên lạc · sáng: biểu mẫu) */
.abc{background:linear-gradient(180deg,#f2f6f8,#e9f1f2);border-top:1px solid var(--line-2);padding:60px 0 70px}
.abc-wrap{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);max-width:1080px;margin:0 auto;border-radius:var(--r);overflow:hidden;box-shadow:0 30px 60px -30px rgba(20,33,61,.45)}
.abc-info{position:relative;display:flex;flex-direction:column;gap:18px;padding:36px 34px;background:linear-gradient(160deg,#14213d,#1f3566);color:#c7d4f0;overflow:hidden}
.abc-info::after{content:"";position:absolute;right:-60px;bottom:-60px;width:220px;height:220px;border-radius:50%;background:rgba(98,214,180,.09)}
.abc-info>*{position:relative;z-index:1}
.abc-info .ab-eye{color:#62d6b4}
.abc-info h2{margin:6px 0 8px;font-size:28px;line-height:1.2;letter-spacing:-.5px;color:#fff}
.abc-info p{margin:0;font-size:14px;line-height:1.65;color:#aebcdc}
.abc-call{display:flex;align-items:center;gap:14px;padding:16px 18px;border-radius:var(--r);background:var(--mint);color:#fff;transition:transform .15s,box-shadow .15s}
.abc-call:hover{transform:translateY(-2px);box-shadow:0 14px 26px -12px rgba(12,156,121,.9)}
.abc-call>i{display:grid;place-items:center;flex:none;width:48px;height:48px;border-radius:50%;background:rgba(255,255,255,.2);font-size:24px}
.abc-call small{display:block;font-size:11.5px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;opacity:.9}
.abc-call b{display:block;font-size:26px;line-height:1.15;letter-spacing:-.3px;color:#fff;font-variant-numeric:tabular-nums}
.abc-call em{display:block;font-style:normal;font-size:12.5px;opacity:.92}
.abc-list{display:grid;gap:4px}
.abc-row{display:flex;align-items:center;gap:13px;padding:11px 12px;margin:0 -12px;border-radius:var(--r);color:#dbe5fb;transition:background .15s}
a.abc-row:hover{background:rgba(255,255,255,.09)}
.abc-row>i{display:grid;place-items:center;flex:none;width:38px;height:38px;border-radius:var(--r);background:rgba(255,255,255,.1);font-size:19px;color:#62d6b4}
.abc-row small{display:block;font-size:11px;font-weight:700;letter-spacing:.07em;text-transform:uppercase;color:#8fa2cc}
.abc-row b{display:block;font-size:14.5px;font-weight:600;color:#fff;word-break:break-word}
.abc-row .go{margin-left:auto;font-size:15px;color:#8fa2cc}
.abc-note{display:flex;gap:8px;align-items:flex-start;margin-top:auto;padding-top:14px;border-top:1px solid rgba(255,255,255,.14);font-size:12.5px;line-height:1.55;color:#9fb1d8}
.abc-note i{flex:none;margin-top:2px;color:#62d6b4;font-size:16px}
.abc-form{padding:36px 38px 32px;background:#fff}
.abc-form h3{margin:0 0 4px;font-size:22px;letter-spacing:-.3px;color:var(--ink)}
.abc-form .sub{margin:0 0 22px;font-size:13.5px;color:var(--ink-3)}
.abc-form .cms-form .form-grid{grid-template-columns:1fr 1fr;gap:16px 14px}
.abc-form .cms-form .form-grid>.full{grid-column:1/-1}
.abc-form .cms-form .form-label{margin:0 0 6px;font-size:12.5px;font-weight:700;color:var(--ink-2)}
.abc-form .cms-form .form-control{height:46px;padding:0 14px;border:1.5px solid var(--line);border-radius:var(--r);background:#fafbfc;font-size:14.5px;color:var(--ink);transition:border-color .15s,box-shadow .15s,background .15s}
.abc-form .cms-form .form-control::placeholder{color:#a0a9b6}
.abc-form .cms-form .form-control:hover{border-color:#c7cfd9}
.abc-form .cms-form .form-control:focus{outline:0;border-color:var(--mint);background:#fff;box-shadow:0 0 0 4px var(--mint-s)}
.abc-form .cms-form textarea.form-control{height:132px;padding:12px 14px;line-height:1.55;resize:vertical}
.abc-form .cms-form .btn-block{display:flex;align-items:center;justify-content:center;gap:9px;width:100%;height:50px;border:0;border-radius:var(--r);background:linear-gradient(135deg,#0c9c79,#0a7b62);color:#fff;font:700 15.5px/1 inherit;cursor:pointer;transition:transform .15s,box-shadow .15s}
.abc-form .cms-form .btn-block:hover{transform:translateY(-1px);box-shadow:0 12px 24px -12px rgba(12,156,121,.9)}
.abc-form .cms-form .btn-block:focus-visible{outline:3px solid var(--mint-s);outline-offset:2px}
.abc-form .cms-form .btn-block svg{width:19px;height:19px}
.abc-priv{display:flex;gap:8px;align-items:flex-start;margin:14px 0 0;font-size:12.5px;line-height:1.55;color:var(--ink-3)}
.abc-priv i{flex:none;margin-top:1px;font-size:16px;color:var(--mint)}

@media (max-width:1024px){
  .ab-bento{grid-template-columns:repeat(2,minmax(0,1fr))}
  .ab-bento .big{grid-column:span 2;grid-row:auto}
  .ab-pr,.ab-values{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:900px){
  .ab-split,.ab-cta,.abc-wrap,.ab-panel{grid-template-columns:1fr}
  .ab-quote{position:relative;top:auto}
  .ab-vs{grid-template-columns:1fr;gap:12px}
  .ab-vs-mid{transform:rotate(90deg)}
  .ab-steps{grid-template-columns:repeat(2,minmax(0,1fr));row-gap:34px}
  .ab-steps::before{display:none}
  .ab-road{grid-template-columns:1fr;gap:20px;text-align:left}
  .ab-road::before{left:19px;right:auto;top:12px;bottom:12px;width:3px;height:auto;background:linear-gradient(180deg,var(--mint) 0 62%,#cfd8de 62%)}
  .ab-road li{display:grid;grid-template-columns:40px 1fr;column-gap:14px;text-align:left;padding:0}
  .ab-road .dot{margin:0;grid-row:span 2}
  .ab-ctas{justify-content:flex-start}
  .ab-pr2{display:none}
}
@media (max-width:640px){
  .ab-hero h1{font-size:32px;letter-spacing:-.6px}
  .ab-hero .lead{font-size:15.5px}
  .ab-stats{width:100%}
  .ab-stats>div{flex:1 1 45%;padding:12px 14px;border-bottom:1px solid var(--line-2)}
  .ab-sec{padding:44px 0}
  .ab-h h2,.ab-story h2{font-size:25px}
  .ab-lead{font-size:17px}
  .ab-quote{padding:24px 20px}.ab-quote p{font-size:19px}
  .ab-steps,.ab-pr,.ab-values,.ab-bento{grid-template-columns:1fr}
  .ab-bento .big,.ab-bento .wide{grid-column:auto}
  .ab-tabs{width:100%;overflow-x:auto;flex-wrap:nowrap;scrollbar-width:none}
  .ab-tabs button{flex:none;padding:10px 13px}
  .ab-pl{padding:22px 18px}
  .ab-cta{padding:26px 20px}.ab-cta h2{font-size:23px}
  .abc{padding:36px 0 44px}
  .abc-info{padding:26px 20px}.abc-form{padding:26px 18px}
  .abc-call b{font-size:23px}
  .abc-form .cms-form .form-grid{grid-template-columns:1fr}
  .ab-values .n{font-size:40px}
}
@media (prefers-reduced-motion:reduce){.ab-bento .bx,.abc-call,.abc-form .cms-form .btn-block{transition:none}}