/* =========================================================
   ViPay — style.css
   Phong cách: landing ỨNG DỤNG DI ĐỘNG (ví điện tử & quản lý chi tiêu).
   Nền trắng tinh + đen than #0A0A0A + xanh lá sống động #00D084 + tông bạc hà nhạt.
   Bo góc rất lớn (28px), chữ "Plus Jakarta Sans" cho toàn bộ trang.
   Bố cục khác các mẫu trước:
     - Header dạng VIÊN THUỐC NỔI (fixed, cách mép trên 16px, bo 999px, đổ bóng đậm hơn khi cuộn)
     - Hero chữ giữa có TỪ XOAY VÒNG (JS đổi "chuyển tiền / chia bill / tiết kiệm"),
       2 huy hiệu cửa hàng vẽ bằng CSS và BA ĐIỆN THOẠI vẽ hoàn toàn bằng CSS
       (máy giữa đứng thẳng, hai máy bên nghiêng ±8° và thấp hơn), nền hero.jpg làm mờ
     - Dải số liệu đen 3 con số; "Tính năng" CUỘN DÍNH: cột trái 4 đoạn tính năng,
       cột phải 1 điện thoại dính đổi màn hình theo IntersectionObserver
     - Demo CHIA HÓA ĐƠN tương tác (nhập tổng tiền + số người → mỗi người bao nhiêu, avatar chia)
     - Bảo mật 4 thẻ, bảng PHÍ minh bạch (ViPay vs ngân hàng thường), nhận xét trên ảnh đời thường,
       FAQ, khối CTA đen có MÃ QR vẽ bằng lưới ô vuông CSS, footer
     - Màn hình app (.phone > .phone__screen): thẻ số dư, dòng giao dịch, cột biểu đồ,
       vòng tiến độ conic-gradient, thẻ ảo, khung quét QR — không dùng ảnh chụp màn hình
   Ảnh: mỗi khối ảnh dùng biến --img trên thẻ HTML (đường dẫn ../images/…).
   ========================================================= */

:root{
  --ink:#0A0A0A;
  --text:#2B2B30;
  --muted:#6F7076;
  --line:#E9EAEE;
  --bg:#FFFFFF;
  --bg-2:#F6F7F9;
  --green:#00D084;
  --green-deep:#00A96B;
  --mint:#E6FBF2;
  --mint-2:#CDF6E5;
  --radius:28px;
  --radius-sm:16px;
  --shadow:0 2px 10px rgba(10,10,10,.05),0 0 0 1px rgba(10,10,10,.04);
  --shadow-lg:0 30px 70px rgba(10,10,10,.22);
  --ph:linear-gradient(135deg,#E6FBF2 0%,#CDF6E5 55%,#DDE9F0 100%);
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:'Plus Jakarta Sans',system-ui,-apple-system,sans-serif;color:var(--text);background:var(--bg);font-size:16px;line-height:1.65;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:none;background:none;color:inherit}
img{max-width:100%;display:block}
svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;flex:none}
.ph{background:var(--img,var(--ph)) center/cover no-repeat}
.container{width:min(1140px,92%);margin:0 auto}
h1,h2,h3,h4{font-weight:800;line-height:1.12;color:var(--ink);letter-spacing:-.03em}
b,strong{font-weight:700}
.g{color:var(--green-deep)}

/* ---------- Nút & huy hiệu ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 22px;border-radius:999px;font-weight:700;font-size:14.5px;transition:.2s;white-space:nowrap;line-height:1.2}
.btn svg{width:16px;height:16px}
.btn--black{background:var(--ink);color:#fff}
.btn--black:hover{background:var(--green);color:var(--ink)}
.btn--green{background:var(--green);color:var(--ink)}
.btn--green:hover{background:var(--ink);color:#fff}
.btn--line{border:1.5px solid var(--line);color:var(--ink);background:#fff}
.btn--line:hover{border-color:var(--ink)}
.btn--white{background:#fff;color:var(--ink)}
.btn--white:hover{background:var(--green)}
.btn--lg{padding:16px 30px;font-size:16px}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;pointer-events:none}
.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;background:var(--mint);color:var(--green-deep);font-size:13px;font-weight:700}
.eyebrow::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--green)}
.store{display:inline-flex;align-items:center;gap:11px;background:var(--ink);color:#fff;border-radius:14px;padding:9px 20px 9px 14px;text-align:left;line-height:1.1;transition:.2s}
.store svg{width:26px;height:26px}
.store small{display:block;font-size:10.5px;opacity:.7;font-weight:500;margin-bottom:3px}
.store b{font-size:16.5px;font-weight:700;letter-spacing:-.01em}
.store:hover{transform:translateY(-2px)}
.store--white{background:#fff;color:var(--ink)}
.stores{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}

/* ---------- Header viên thuốc nổi ---------- */
.header{position:fixed;top:16px;left:50%;transform:translateX(-50%);width:min(1040px,94%);z-index:100;background:#fff;border-radius:999px;box-shadow:var(--shadow);transition:box-shadow .3s}
.header.is-scrolled{box-shadow:0 14px 40px rgba(10,10,10,.16),0 0 0 1px rgba(10,10,10,.05)}
.header__in{display:flex;align-items:center;gap:20px;padding:8px 8px 8px 22px;min-height:60px}
.logo{display:flex;align-items:center;gap:9px;font-weight:800;font-size:20px;color:var(--ink);letter-spacing:-.02em}
.logo__mark{width:34px;height:34px;border-radius:11px;background:var(--ink);display:grid;place-items:center;color:var(--green)}
.logo__mark svg{width:18px;height:18px;stroke-width:2.5}
.nav{display:flex;gap:2px;margin-left:auto}
.nav a{padding:8px 14px;border-radius:999px;font-weight:600;font-size:14px;color:var(--text)}
.nav a:hover,.nav a.is-active{background:var(--mint);color:var(--green-deep)}
.header__cta{display:flex;align-items:center;gap:6px}
.burger{display:none;width:44px;height:44px;border-radius:50%;background:var(--bg-2);place-items:center}

/* ---------- Điện thoại vẽ bằng CSS ---------- */
.phone{--pw:270px;width:var(--pw);height:calc(var(--pw)*2.08);background:var(--ink);border-radius:calc(var(--pw)*.16);padding:9px;box-shadow:var(--shadow-lg),inset 0 0 0 2px #3a3a3a;position:relative;flex:none;text-align:left}
.phone::before{content:"";position:absolute;top:19px;left:50%;transform:translateX(-50%);width:33%;height:24px;background:var(--ink);border-radius:999px;z-index:6}
.phone::after{content:"";position:absolute;right:-3px;top:28%;width:3px;height:56px;background:#2a2a2a;border-radius:0 3px 3px 0}
.phone__screen{position:absolute;inset:9px;border-radius:calc(var(--pw)*.16 - 9px);background:var(--bg-2);overflow:hidden;padding:60px 16px 18px;display:flex;flex-direction:column;gap:10px;font-size:12px;color:var(--ink);line-height:1.4}
.phone__screen--dark{background:var(--ink);color:#fff}
.phone--switch .phone__screen{opacity:0;transform:translateY(16px);transition:opacity .45s,transform .45s;pointer-events:none}
.phone--switch .phone__screen.is-active{opacity:1;transform:none;pointer-events:auto}
.phone__status{position:absolute;top:16px;left:22px;right:22px;display:flex;justify-content:space-between;align-items:center;font-size:12px;font-weight:700;z-index:5}
.phone__status span{display:inline-flex;align-items:center;gap:5px}
.sig{display:inline-flex;gap:2px;align-items:flex-end}
.sig b{width:3px;background:currentColor;border-radius:1px;height:4px}
.sig b:nth-child(2){height:6px}.sig b:nth-child(3){height:8px}.sig b:nth-child(4){height:10px}
.bat{display:inline-block;width:22px;height:11px;border:1.5px solid currentColor;border-radius:3.5px;position:relative;opacity:.9}
.bat::after{content:"";position:absolute;inset:2px;right:5px;background:currentColor;border-radius:1px}
/* Nội dung màn hình */
.s-top{display:flex;align-items:center;justify-content:space-between;gap:8px}
.s-top small{color:var(--muted);display:block;font-size:11px}
.s-top b{font-size:14px;display:block}
.s-av{width:32px;height:32px;border-radius:50%;background:var(--green);color:var(--ink);font-weight:800;display:grid;place-items:center;font-size:11px;flex:none}
.s-av--b{background:var(--ink);color:var(--green)}
.s-bell{width:32px;height:32px;border-radius:50%;background:#fff;display:grid;place-items:center;color:var(--ink)}
.s-bell svg{width:15px;height:15px}
.bal{background:var(--ink);color:#fff;border-radius:18px;padding:16px;position:relative;overflow:hidden}
.bal::after{content:"";position:absolute;right:-30px;top:-40px;width:120px;height:120px;border-radius:50%;background:var(--green);opacity:.25;filter:blur(12px)}
.bal small{color:rgba(255,255,255,.62);font-size:11px}
.bal b{display:block;font-size:23px;font-weight:800;margin:3px 0 12px;letter-spacing:-.02em;position:relative}
.bal__acts{display:flex;gap:6px;position:relative}
.bal__acts span{flex:1;background:rgba(255,255,255,.1);border-radius:10px;padding:7px 0;text-align:center;font-size:10px;font-weight:600}
.bal__acts span.on{background:var(--green);color:var(--ink)}
.s-h{display:flex;justify-content:space-between;align-items:center;font-size:12px;font-weight:700;margin-top:2px}
.s-h span{color:var(--green-deep);font-weight:600;font-size:11px}
.tx{display:flex;align-items:center;gap:10px;background:#fff;border-radius:14px;padding:9px 10px}
.phone__screen--dark .tx{background:rgba(255,255,255,.08)}
.tx i{width:32px;height:32px;border-radius:10px;background:var(--mint);display:grid;place-items:center;font-style:normal;font-size:13px;font-weight:800;color:var(--green-deep);flex:none}
.tx div{flex:1;min-width:0}
.tx b{display:block;font-size:12px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.tx small{color:var(--muted);font-size:10px;display:block}
.tx em{font-style:normal;font-weight:800;font-size:12px;white-space:nowrap}
.tx em.plus{color:var(--green-deep)}
.s-center{text-align:center}
.s-check{width:78px;height:78px;border-radius:50%;background:var(--green);margin:16px auto 6px;display:grid;place-items:center;box-shadow:0 0 0 14px var(--mint)}
.s-check svg{width:36px;height:36px;color:var(--ink);stroke-width:3}
.s-amount{font-size:27px;font-weight:800;letter-spacing:-.03em;display:block}
.s-list{background:#fff;border-radius:14px;padding:2px 12px}
.s-list div{display:flex;justify-content:space-between;gap:8px;padding:8px 0;border-bottom:1px solid var(--line);font-size:11px}
.s-list div:last-child{border:0}
.s-list span{color:var(--muted)}
.s-btn{margin-top:auto;background:var(--ink);color:#fff;border-radius:14px;padding:12px;text-align:center;font-weight:700;font-size:13px}
.s-btn--g{background:var(--green);color:var(--ink)}
.s-btn--w{background:#fff;color:var(--ink)}
.ring{--p:68;width:132px;height:132px;border-radius:50%;background:conic-gradient(var(--green) calc(var(--p)*1%),#E2E4E9 0);margin:6px auto;display:grid;place-items:center;position:relative}
.ring::before{content:"";position:absolute;inset:13px;background:var(--bg-2);border-radius:50%}
.ring div{position:relative;text-align:center;line-height:1.1}
.ring b{font-size:26px;font-weight:800;display:block;letter-spacing:-.03em}
.ring small{font-size:10px;color:var(--muted)}
.bars{display:flex;align-items:flex-end;gap:6px;height:96px;background:#fff;border-radius:14px 14px 0 0;padding:14px 12px 0}
.bars i{flex:1;background:#E2E4E9;border-radius:5px 5px 0 0;height:var(--h)}
.bars i.hi{background:var(--green)}
.bars-lbl{display:flex;justify-content:space-between;font-size:9px;color:var(--muted);padding:6px 12px 8px;background:#fff;border-radius:0 0 14px 14px}
.bars-lbl span{flex:1;text-align:center}
.vcard{aspect-ratio:1.58;border-radius:16px;background:linear-gradient(135deg,#0A0A0A 0%,#173D2C 55%,#00D084 150%);color:#fff;padding:14px;display:flex;flex-direction:column;justify-content:space-between;position:relative;overflow:hidden}
.vcard::before{content:"";position:absolute;right:-20px;bottom:-40px;width:110px;height:110px;border-radius:50%;border:18px solid rgba(255,255,255,.08)}
.vcard small{opacity:.7;font-size:10px;display:block}
.vcard b{font-size:14px;letter-spacing:.16em;font-weight:600;display:block}
.vcard .chip{width:28px;height:20px;border-radius:5px;background:linear-gradient(135deg,#F6D98A,#C9A04A)}
.s-row{display:flex;justify-content:space-between;align-items:center;background:#fff;border-radius:14px;padding:10px 12px;font-size:12px;font-weight:600}
.s-row small{display:block;color:var(--muted);font-weight:500;font-size:10px}
.s-tg{width:38px;height:22px;border-radius:999px;background:var(--green);position:relative;flex:none}
.s-tg::after{content:"";position:absolute;top:3px;right:3px;width:16px;height:16px;border-radius:50%;background:#fff}
.s-tg.off{background:#D5D7DC}.s-tg.off::after{right:auto;left:3px}
.s-bar{height:8px;background:#E2E4E9;border-radius:999px;overflow:hidden}
.s-bar b{display:block;height:100%;background:var(--green);width:var(--w)}
.s-people{display:flex;flex-direction:column;gap:6px}
.s-people .tx i{border-radius:50%;font-size:11px}
.s-chip{font-size:9px;font-weight:700;padding:3px 8px;border-radius:999px;background:var(--mint);color:var(--green-deep)}
.s-chip.wait{background:#FFF3D6;color:#A56A00}
.s-scan{aspect-ratio:1;border-radius:18px;background:#111;position:relative;margin:4px 0;display:grid;place-items:center;color:var(--green)}
.s-scan::before{content:"";position:absolute;inset:28px;border:2px solid var(--green);border-radius:14px;mask:linear-gradient(#000 0 0) top/100% 24px no-repeat,linear-gradient(#000 0 0) bottom/100% 24px no-repeat,linear-gradient(#000 0 0) left/24px 100% no-repeat,linear-gradient(#000 0 0) right/24px 100% no-repeat;-webkit-mask:linear-gradient(#000 0 0) top/100% 24px no-repeat,linear-gradient(#000 0 0) bottom/100% 24px no-repeat,linear-gradient(#000 0 0) left/24px 100% no-repeat,linear-gradient(#000 0 0) right/24px 100% no-repeat}
.s-scan::after{content:"";position:absolute;left:36px;right:36px;top:50%;height:2px;background:var(--green);box-shadow:0 0 12px var(--green)}
.s-scan svg{width:44px;height:44px;opacity:.6}
.s-cats div{display:flex;align-items:center;gap:8px;font-size:11px;padding:5px 0}
.s-cats i{width:8px;height:8px;border-radius:50%;background:var(--green);flex:none}
.s-cats i.c2{background:var(--ink)}.s-cats i.c3{background:#B9BEC7}
.s-cats span{flex:1}
.s-cats b{font-size:11px}

/* ---------- Hero ---------- */
.hero{position:relative;padding:150px 0 0;text-align:center;overflow:hidden;background:#fff}
.hero__bg{position:absolute;inset:-60px;filter:blur(46px);opacity:.34;z-index:0}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(255,255,255,.45) 0%,rgba(255,255,255,.88) 55%,#fff 100%);z-index:0}
.hero .container{position:relative;z-index:1}
.hero h1{font-size:clamp(40px,6.4vw,76px);max-width:860px;margin:22px auto 20px}
.rot{display:inline-block;color:var(--green-deep);position:relative;min-width:5.2ch;text-align:left}
.rot::after{content:"";position:absolute;left:0;right:0;bottom:.04em;height:.12em;background:var(--green);border-radius:999px;opacity:.5}
#rotWord{display:inline-block;transition:opacity .3s,transform .3s}
#rotWord.is-out{opacity:0;transform:translateY(10px)}
.hero p{font-size:18.5px;color:var(--muted);max-width:600px;margin-inline:auto}
.hero__stores{margin-top:30px}
.hero__note{margin-top:14px;font-size:13px;color:var(--muted)}
.hero__phones{position:relative;margin-top:60px;height:560px;display:flex;justify-content:center;align-items:flex-start}
.phone--center{--pw:300px;z-index:3}
.phone--left{--pw:262px;transform:rotate(-8deg) translateY(96px);margin-right:-34px;z-index:2}
.phone--right{--pw:262px;transform:rotate(8deg) translateY(96px);margin-left:-34px;z-index:2}

/* ---------- Dải số liệu ---------- */
.stats{background:var(--ink);color:#fff;padding:60px 0}
.stats__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;text-align:center}
.stat b{font-size:clamp(40px,4.6vw,58px);color:var(--green);font-weight:800;display:block;letter-spacing:-.04em;line-height:1}
.stat span{color:rgba(255,255,255,.65);font-size:15px;display:block;margin-top:10px}
.stat span strong{color:#fff}

/* ---------- Khối chung ---------- */
.section{padding:100px 0}
.section--soft{background:var(--bg-2)}
.section--mint{background:var(--mint)}
.section__head{max-width:660px;margin:0 auto 56px;text-align:center}
.section__head h2{font-size:clamp(30px,4vw,48px);margin:16px 0 14px}
.section__head p{color:var(--muted);font-size:17px}
.section__head--left{margin-left:0;text-align:left}

/* ---------- Tính năng cuộn dính ---------- */
.feat{display:grid;grid-template-columns:1fr 360px;gap:90px;align-items:start}
.feat__item{min-height:520px;display:flex;flex-direction:column;justify-content:center;padding:30px 0;border-bottom:1px solid var(--line)}
.feat__item:last-child{border-bottom:0}
.feat__item .num{width:44px;height:44px;border-radius:14px;background:var(--mint);color:var(--green-deep);display:grid;place-items:center;font-weight:800;font-size:15px;margin-bottom:22px}
.feat__item h3{font-size:clamp(26px,3vw,38px);margin-bottom:14px}
.feat__item p{color:var(--muted);font-size:17px;max-width:480px}
.feat__item ul{list-style:none;margin-top:20px;display:grid;gap:9px}
.feat__item li{display:flex;gap:10px;align-items:center;font-weight:600;font-size:15px}
.feat__item li svg{width:20px;height:20px;padding:4px;border-radius:50%;background:var(--green);color:var(--ink);stroke-width:3}
.feat__sticky{position:sticky;top:100px;display:flex;justify-content:center;align-items:center;padding:20px 0}
.feat__sticky .phone{--pw:290px}

/* ---------- Demo chia hóa đơn ---------- */
.split{display:grid;grid-template-columns:1fr 1.15fr;gap:48px;background:var(--mint);border-radius:var(--radius);padding:52px;align-items:center}
.split h2{font-size:clamp(28px,3.4vw,42px);margin:14px 0 10px}
.split p{color:var(--muted)}
.field{display:grid;gap:6px;margin-top:16px}
.field label{font-size:13px;font-weight:700;color:var(--ink)}
.field input,.field select,.field textarea{width:100%;border:1.5px solid var(--line);background:#fff;border-radius:14px;padding:13px 16px;font:inherit;font-size:15px;color:var(--ink);outline:none;transition:.2s}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--green);box-shadow:0 0 0 4px rgba(0,208,132,.18)}
.field--row{grid-template-columns:1fr 1fr;gap:14px}
.field--row .field{margin-top:0}
.split__form .field--row{margin-top:16px}
.split__res{margin-top:20px;background:var(--ink);color:#fff;border-radius:20px;padding:20px 24px;display:flex;justify-content:space-between;align-items:center;gap:16px}
.split__res small{display:block;color:rgba(255,255,255,.6);font-size:13px}
.split__res b{font-size:34px;color:var(--green);letter-spacing:-.03em;display:block;line-height:1.1}
.split__res span{font-size:13px;color:rgba(255,255,255,.7);text-align:right}
.split__vis{background:#fff;border-radius:24px;padding:28px;box-shadow:var(--shadow)}
.bill{display:flex;justify-content:space-between;align-items:center;padding-bottom:16px;border-bottom:1px dashed var(--line)}
.bill small{display:block;color:var(--muted);font-size:13px}
.bill b{font-size:20px}
.bill em{font-style:normal;font-weight:800;font-size:22px;letter-spacing:-.02em}
.avs{display:flex;flex-wrap:wrap;gap:12px;margin-top:20px;min-height:100px}
.av{display:flex;flex-direction:column;align-items:center;gap:6px;width:calc(20% - 10px);min-width:66px;animation:pop .35s both}
.av i{width:52px;height:52px;border-radius:50%;display:grid;place-items:center;font-style:normal;font-weight:800;font-size:15px;color:var(--ink);background:var(--mint-2);border:3px solid #fff;box-shadow:0 0 0 2px var(--green)}
.av i.you{background:var(--green)}
.av span{font-size:12px;font-weight:700;white-space:nowrap}
.av small{font-size:10.5px;color:var(--muted);margin-top:-4px}
@keyframes pop{from{opacity:0;transform:scale(.6)}to{opacity:1;transform:none}}
.split__foot{margin-top:18px;display:flex;justify-content:space-between;align-items:center;gap:12px;font-size:13px;color:var(--muted)}

/* ---------- Bảo mật 4 thẻ ---------- */
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.card{background:#fff;border:1px solid var(--line);border-radius:24px;padding:28px;transition:.25s}
.card:hover{transform:translateY(-4px);box-shadow:0 20px 40px rgba(10,10,10,.08);border-color:transparent}
.card .ic{width:52px;height:52px;border-radius:16px;background:var(--mint);color:var(--green-deep);display:grid;place-items:center;margin-bottom:18px}
.card .ic svg{width:24px;height:24px}
.card .ic--black{background:var(--ink);color:var(--green)}
.card h3{font-size:19px;margin-bottom:8px}
.card p{color:var(--muted);font-size:14.5px}
.card--soft{background:var(--bg-2);border-color:transparent}

/* ---------- Bảng phí ---------- */
.fees{background:#fff;border-radius:var(--radius);border:1px solid var(--line);overflow:hidden}
.fees table{width:100%;border-collapse:collapse}
.fees th,.fees td{padding:18px 24px;text-align:left;border-bottom:1px solid var(--line);font-size:15px}
.fees tr:last-child td{border-bottom:0}
.fees th{background:var(--bg-2);font-size:13px;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);font-weight:700}
.fees th.vp{background:var(--ink);color:var(--green)}
.fees td.vp{font-weight:800;color:var(--ink);background:var(--mint)}
.fees td small{display:block;color:var(--muted);font-weight:500;font-size:12.5px}
.fees td.dim{color:var(--muted)}
.ok{display:inline-flex;align-items:center;gap:8px}
.ok svg{width:20px;height:20px;padding:4px;border-radius:50%;background:var(--green);color:var(--ink);stroke-width:3}
.no svg{width:20px;height:20px;padding:4px;border-radius:50%;background:#EDEEF1;color:var(--muted);stroke-width:3}

/* ---------- Nhận xét trên ảnh ---------- */
.quotes{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.quote{position:relative;min-height:380px;border-radius:var(--radius);overflow:hidden;color:#fff;padding:30px;display:flex;flex-direction:column;justify-content:flex-end}
.quote::before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(10,10,10,0) 30%,rgba(10,10,10,.88) 100%)}
.quote > *{position:relative}
.quote p{font-size:19px;font-weight:600;line-height:1.45;letter-spacing:-.01em}
.quote footer{margin-top:16px;display:flex;align-items:center;gap:12px;font-size:13.5px;color:rgba(255,255,255,.75)}
.quote footer b{color:#fff;display:block}
.quote footer i{width:38px;height:38px;border-radius:50%;background:var(--green);color:var(--ink);display:grid;place-items:center;font-style:normal;font-weight:800;font-size:13px}
.quote .stars{color:var(--green);font-size:14px;letter-spacing:2px;margin-bottom:10px}

/* ---------- FAQ ---------- */
.faq{max-width:780px;margin:0 auto;display:grid;gap:12px}
.faq details{background:#fff;border:1px solid var(--line);border-radius:20px;padding:0 24px}
.faq summary{cursor:pointer;list-style:none;padding:20px 0;font-weight:700;font-size:16.5px;color:var(--ink);display:flex;justify-content:space-between;align-items:center;gap:16px}
.faq summary::-webkit-details-marker{display:none}
.faq summary span{width:30px;height:30px;border-radius:50%;background:var(--mint);color:var(--green-deep);display:grid;place-items:center;font-size:20px;flex:none;transition:.25s}
.faq details[open] summary span{transform:rotate(45deg);background:var(--ink);color:var(--green)}
.faq details p{padding:0 0 20px;color:var(--muted)}
.faq details[hidden]{display:none}

/* ---------- CTA đen + QR ---------- */
.cta{background:var(--ink);border-radius:var(--radius);padding:72px;display:grid;grid-template-columns:1fr auto;gap:56px;align-items:center;color:#fff;position:relative;overflow:hidden}
.cta::before{content:"";position:absolute;left:-120px;bottom:-160px;width:420px;height:420px;border-radius:50%;background:var(--green);opacity:.18;filter:blur(60px)}
.cta > *{position:relative}
.cta h2{color:#fff;font-size:clamp(32px,4.2vw,54px);margin-bottom:14px}
.cta p{color:rgba(255,255,255,.65);font-size:17px;max-width:520px}
.cta .stores{justify-content:flex-start;margin-top:28px}
.qr-wrap{background:#fff;border-radius:24px;padding:18px;text-align:center;color:var(--ink);width:236px}
.qr{display:grid;grid-template-columns:repeat(17,1fr);gap:1.5px;aspect-ratio:1;position:relative}
.qr i{display:block;border-radius:1px;background:transparent}
.qr i.on{background:var(--ink)}
.qr::after{content:"V";position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:38px;height:38px;border-radius:10px;background:var(--green);color:var(--ink);display:grid;place-items:center;font-weight:800;font-size:20px;box-shadow:0 0 0 5px #fff}
.qr-wrap small{display:block;margin-top:12px;font-size:12.5px;font-weight:600;color:var(--muted)}

/* ---------- Footer ---------- */
.footer{padding:70px 0 30px;border-top:1px solid var(--line)}
.footer__grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px}
.footer__col p{color:var(--muted);font-size:14px;margin-top:14px;max-width:320px}
.footer__col h4{font-size:14px;margin-bottom:14px;text-transform:uppercase;letter-spacing:.06em}
.footer__col a{display:block;color:var(--muted);font-size:14.5px;padding:4px 0}
.footer__col a:hover{color:var(--green-deep)}
.footer__col a.logo{display:inline-flex;color:var(--ink);font-size:20px;padding:0}
.footer__bar{margin-top:48px;padding-top:22px;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:16px;font-size:13px;color:var(--muted);flex-wrap:wrap}
.status{display:inline-flex;align-items:center;gap:8px;font-weight:600;color:var(--ink);font-size:13.5px}
.status i{width:9px;height:9px;border-radius:50%;background:var(--green);box-shadow:0 0 0 0 rgba(0,208,132,.6);animation:pulse 1.8s infinite}
@keyframes pulse{to{box-shadow:0 0 0 9px rgba(0,208,132,0)}}

/* ---------- Trang con: hero nhỏ ---------- */
.page-hero{padding:150px 0 50px;text-align:center}
.page-hero h1{font-size:clamp(36px,5.4vw,64px);margin:16px auto 16px;max-width:800px}
.page-hero p{color:var(--muted);font-size:18px;max-width:600px;margin-inline:auto}

/* ---------- Tính năng: hàng xen kẽ ---------- */
.frow{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:center;padding:50px 0}
.frow:nth-child(even) .frow__text{order:2}
.frow__text h2{font-size:clamp(28px,3.4vw,42px);margin:16px 0 14px}
.frow__text p{color:var(--muted);font-size:17px}
.frow__text ul{list-style:none;margin-top:22px;display:grid;gap:10px}
.frow__text li{display:flex;gap:10px;align-items:flex-start;font-size:15px}
.frow__text li svg{width:20px;height:20px;padding:4px;border-radius:50%;background:var(--green);color:var(--ink);stroke-width:3;margin-top:2px}
.frow__text li b{color:var(--ink)}
.frow__stage{background:var(--mint);border-radius:var(--radius);height:500px;display:flex;justify-content:center;overflow:hidden;padding-top:44px;position:relative}
.frow__stage--dark{background:var(--ink)}
.frow__stage--soft{background:var(--bg-2)}
.frow__stage .phone{--pw:262px}
.frow__stage .tag{position:absolute;top:22px;left:22px;background:#fff;border-radius:999px;padding:6px 14px;font-size:12.5px;font-weight:700;box-shadow:var(--shadow)}
.frow__stage--dark .tag{background:var(--green);color:var(--ink)}
.soon .card{opacity:.6;border:1.5px dashed #C9CBD2;background:var(--bg-2);position:relative}
.soon .card:hover{transform:none;box-shadow:none}
.soon .badge{position:absolute;top:18px;right:18px;background:var(--ink);color:#fff;font-size:11px;font-weight:700;padding:5px 10px;border-radius:999px}
.soon .card .btn{margin-top:18px}

/* ---------- Bảo mật: lớp bảo vệ, chứng nhận, checklist, form ---------- */
.layers{max-width:560px;margin:0 auto}
.layer{border-radius:var(--radius);padding:34px;position:relative}
.layer > b{display:block;font-size:13px;text-transform:uppercase;letter-spacing:.08em;margin-bottom:6px}
.layer > small{display:block;font-size:13.5px;margin-bottom:20px;opacity:.8}
.layer--1{background:var(--mint);color:var(--green-deep)}
.layer--2{background:#fff;color:var(--ink);box-shadow:var(--shadow)}
.layer--3{background:var(--ink);color:#fff;text-align:center;padding:42px 30px}
.layer--3 svg{width:44px;height:44px;color:var(--green);margin:0 auto 12px}
.layer--3 h3{color:#fff;font-size:20px}
.layer--3 p{color:rgba(255,255,255,.65);font-size:14px;margin-top:6px}
.certs{display:grid;gap:14px}
.cert{display:flex;gap:16px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:20px;padding:18px 20px}
.cert i{width:52px;height:52px;border-radius:50%;background:var(--ink);color:var(--green);display:grid;place-items:center;font-style:normal;font-weight:800;font-size:12px;flex:none;text-align:center;line-height:1}
.cert b{display:block;font-size:16px}
.cert small{color:var(--muted);font-size:13.5px}
.checks{display:grid;gap:10px}
.check{display:flex;gap:14px;align-items:flex-start;background:#fff;border:1px solid var(--line);border-radius:18px;padding:16px 18px;cursor:pointer;transition:.2s}
.check:has(input:checked){background:var(--mint);border-color:var(--mint-2)}
.check input{appearance:none;width:24px;height:24px;border:2px solid #C9CBD2;border-radius:8px;flex:none;margin-top:2px;position:relative;cursor:pointer}
.check input:checked{background:var(--green);border-color:var(--green)}
.check input:checked::after{content:"";position:absolute;left:7px;top:3px;width:6px;height:11px;border:solid var(--ink);border-width:0 3px 3px 0;transform:rotate(45deg)}
.check b{display:block;font-size:15.5px;color:var(--ink)}
.check small{color:var(--muted);font-size:13.5px}
.check:has(input:checked) b{text-decoration:line-through;opacity:.7}
.progress{background:#fff;border-radius:20px;padding:20px 22px;margin-bottom:16px;box-shadow:var(--shadow)}
.progress div{display:flex;justify-content:space-between;font-weight:700;margin-bottom:10px}
.progress .s-bar{height:10px}
.form{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:40px;box-shadow:var(--shadow)}
.form h3{font-size:22px;margin-bottom:4px}
.form > p{color:var(--muted);font-size:14.5px}
.form .btn{margin-top:22px;width:100%}
.form .note{font-size:12.5px;color:var(--muted);margin-top:12px;text-align:center}
.alert{display:flex;gap:14px;background:#FFF3D6;border-radius:20px;padding:18px 20px;font-size:14.5px;color:#7A4E00;align-items:flex-start}
.alert svg{color:#A56A00;flex:none;margin-top:2px}
.alert b{display:block;color:#5B3A00}

/* ---------- Hỗ trợ ---------- */
.search{max-width:640px;margin:28px auto 0;position:relative}
.search input{width:100%;border:1.5px solid var(--line);background:#fff;border-radius:999px;padding:18px 60px 18px 54px;font:inherit;font-size:16px;color:var(--ink);outline:none;box-shadow:var(--shadow)}
.search input:focus{border-color:var(--green);box-shadow:0 0 0 4px rgba(0,208,132,.18)}
.search > svg{position:absolute;left:22px;top:50%;transform:translateY(-50%);color:var(--muted)}
.search button{position:absolute;right:8px;top:8px;bottom:8px;padding:0 18px;border-radius:999px;background:var(--ink);color:#fff;font-weight:700;font-size:14px}
.search label{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
.search__tags{display:flex;gap:8px;justify-content:center;flex-wrap:wrap;margin-top:14px;font-size:13px;color:var(--muted)}
.search__tags a{background:var(--bg-2);padding:5px 12px;border-radius:999px;font-weight:600;color:var(--ink)}
.search__tags a:hover{background:var(--mint);color:var(--green-deep)}
.topic{display:block}
.topic small{display:block;color:var(--muted);font-size:13px;margin-top:10px;font-weight:600}
.topic small::after{content:" →";color:var(--green-deep)}
.channels{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.channel{background:var(--ink);color:#fff;border-radius:24px;padding:28px;display:flex;flex-direction:column;gap:6px}
.channel .ic{width:48px;height:48px;border-radius:14px;background:rgba(255,255,255,.1);color:var(--green);display:grid;place-items:center;margin-bottom:12px}
.channel h3{color:#fff;font-size:18px}
.channel p{color:rgba(255,255,255,.65);font-size:14px}
.channel b{font-size:20px;color:var(--green);margin-top:6px;display:block}
.channel .btn{margin-top:14px;align-self:flex-start}
.status-bar{display:flex;justify-content:space-between;align-items:center;gap:16px;background:#fff;border:1px solid var(--line);border-radius:20px;padding:18px 24px;flex-wrap:wrap}
.status-bar .status{font-size:16px}
.status-bar .status i{width:11px;height:11px}
.status-bar small{color:var(--muted);font-size:13.5px}
.status-bar .list{display:flex;gap:18px;flex-wrap:wrap;font-size:13.5px;font-weight:600}
.status-bar .list span::before{content:"";display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--green);margin-right:6px;vertical-align:middle}
.empty{text-align:center;color:var(--muted);padding:30px;display:none}
.empty.is-show{display:block}

/* ---------- Responsive ---------- */
@media (max-width:1100px){
  .cta{padding:56px}
  .feat{gap:50px;grid-template-columns:1fr 320px}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .footer__grid{grid-template-columns:1fr 1fr}
}
@media (max-width:980px){
  .header__in{padding-left:16px}
  .nav{position:absolute;top:calc(100% + 10px);left:0;right:0;flex-direction:column;background:#fff;border-radius:var(--radius);padding:12px;box-shadow:0 20px 50px rgba(10,10,10,.16);display:none;margin:0}
  .nav.is-open{display:flex}
  .nav a{padding:12px 16px}
  .burger{display:grid}
  .header__cta .btn{padding:10px 16px}
  .hero__phones{height:470px;margin-top:44px}
  .phone--center{--pw:250px}
  .phone--left,.phone--right{--pw:215px}
  .phone--left{margin-right:-50px}.phone--right{margin-left:-50px}
  .feat{grid-template-columns:1fr;gap:20px}
  .feat__sticky{position:static;order:-1;padding:0 0 10px}
  .feat__item{min-height:0;padding:34px 0}
  .split{grid-template-columns:1fr;padding:32px}
  .grid-3{grid-template-columns:1fr 1fr}
  .grid-2{grid-template-columns:1fr}
  .frow{grid-template-columns:1fr;gap:34px;padding:34px 0}
  .frow:nth-child(even) .frow__text{order:0}
  .frow__stage{height:420px;padding-top:32px}
  .channels{grid-template-columns:1fr}
  .cta{grid-template-columns:1fr;text-align:center}
  .cta p{margin-inline:auto}
  .cta .stores{justify-content:center}
  .qr-wrap{margin:0 auto}
  .section{padding:72px 0}
}
@media (max-width:640px){
  .header{top:10px}
  .header__cta .btn{display:none}
  .hero{padding-top:118px}
  .hero h1{font-size:clamp(34px,10vw,44px)}
  .hero p{font-size:16px}
  .hero__phones{height:380px;margin-top:36px}
  .phone--center{--pw:210px}
  .phone--left,.phone--right{--pw:160px}
  .phone--left{margin-right:-44px;transform:rotate(-8deg) translateY(70px)}
  .phone--right{margin-left:-44px;transform:rotate(8deg) translateY(70px)}
  .hero__phones .phone__screen{padding:46px 11px 14px;font-size:10.5px;gap:7px}
  .hero__phones .phone__status{top:12px;left:16px;right:16px;font-size:10px}
  .hero__phones .phone::before{height:18px;top:15px}
  .hero__phones .bal{padding:12px}.hero__phones .bal b{font-size:18px;margin-bottom:8px}
  .hero__phones .tx{padding:7px 8px}.hero__phones .tx i{width:26px;height:26px}
  .hero__phones .s-top b{font-size:12px}
  .hero__phones .ring{width:100px;height:100px}.hero__phones .ring b{font-size:20px}
  .hero__phones .s-check{width:60px;height:60px}.hero__phones .s-amount{font-size:22px}
  .stats__grid{grid-template-columns:1fr;gap:28px}
  .grid-4,.grid-3{grid-template-columns:1fr}
  .quotes{grid-template-columns:1fr}
  .quote{min-height:320px;padding:22px}
  .fees th,.fees td{padding:14px 12px;font-size:13.5px}
  .fees{overflow-x:auto}
  .fees table{min-width:560px}
  .field--row{grid-template-columns:1fr}
  .split__res{flex-direction:column;align-items:flex-start}
  .split__res span{text-align:left}
  .av{width:calc(33.33% - 8px)}
  .cta{padding:40px 24px;border-radius:24px}
  .form{padding:24px}
  .layer{padding:20px}
  .footer__grid{grid-template-columns:1fr}
  .section__head{margin-bottom:36px}
  .store{padding:8px 14px 8px 12px}
  .store b{font-size:14.5px}
  .feat__sticky .phone{--pw:240px}
}