/* AiTraLoi — mặt công khai. CSS vanilla, mobile-first (anh Thiện xem trên iPhone). */
:root{
  --nen:#fff; --nen2:#f5f8fc; --chu:#111826; --mo:#5b6878; --vien:#e3e9f0;
  --chinh:#0f766e; --chinh-dam:#115e59; --chinh-mo:#e6f6f3;
  --xanh:#0a7d4b; --cam:#b45309; --do:#c0392b; --vang:#f0b429;
  --bong:0 1px 2px rgba(16,24,40,.05),0 10px 30px -14px rgba(16,24,40,.18);
  --bo:1180px; --tb:58px;
}
@media (prefers-color-scheme:dark){:root:not([data-theme=light]){
  --nen:#0d1218; --nen2:#141b24; --chu:#e9eef5; --mo:#9aa8b8; --vien:#222c38;
  --chinh:#2dd4bf; --chinh-dam:#5eead4; --chinh-mo:#123331;
}}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:calc(var(--tb) + 12px)}
body{margin:0;background:var(--nen);color:var(--chu);
  font:16px/1.65 'Be Vietnam Pro',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;
  -webkit-text-size-adjust:100%}
img{max-width:100%;height:auto;display:block}
a{color:var(--chinh);text-decoration:none}
.bo{width:100%;max-width:var(--bo);margin:0 auto;padding:0 16px}

/* ── nút ── */
.nut{display:inline-flex;align-items:center;justify-content:center;gap:7px;
  padding:13px 22px;border-radius:11px;border:1.5px solid var(--chinh);
  background:var(--chinh);color:#fff;font-weight:650;font-size:15.5px;cursor:pointer;
  transition:transform .12s,box-shadow .12s}
.nut:hover{transform:translateY(-1px);box-shadow:0 8px 20px -8px rgba(15,118,110,.5)}
.nut-vien{background:transparent;color:var(--chinh)}
.nut-nho{padding:8px 15px;font-size:14px;border-radius:9px}
.nut-to{padding:16px 30px;font-size:17px}
.nut-trang{background:#fff;color:var(--chinh-dam);border-color:#fff}

/* ── TOPBAR ── */
.tb{position:sticky;top:0;z-index:60;background:var(--nen);border-bottom:1px solid var(--vien);
  backdrop-filter:saturate(160%) blur(8px)}
.tb-in{height:var(--tb);display:flex;align-items:center;gap:18px}
.tb-hieu{font-weight:800;font-size:20px;letter-spacing:-.5px;color:var(--chu)}
.tb-dau{color:var(--chinh)}
.tb-menu{display:flex;gap:20px;margin-left:10px}
.tb-menu a{color:var(--chu);font-size:15px;font-weight:500;padding:6px 0;border-bottom:2px solid transparent}
.tb-menu a:hover,.tb-menu a.on{color:var(--chinh);border-bottom-color:var(--chinh)}
.tb-phai{margin-left:auto;display:flex;align-items:center;gap:9px}
.tb-phai .nut{white-space:nowrap}
.tb-ham{display:none;flex-direction:column;gap:4px;background:none;border:0;padding:8px;cursor:pointer}
.tb-ham span{display:block;width:21px;height:2px;background:var(--chu);border-radius:2px}

/* ── DRAWER ── */
.dr-nen{position:fixed;inset:0;background:rgba(8,14,22,.5);z-index:70;opacity:0;pointer-events:none;transition:opacity .2s}
body.mo-dr .dr-nen{opacity:1;pointer-events:auto}
/* CH_DRAWER_PHAI_v1 — mở từ BÊN PHẢI, khớp nút ☰ bên phải, đúng bản sắc Content Hub (mamnon…). */
.dr{position:fixed;inset:0 0 0 auto;width:min(360px,86vw);background:var(--nen);z-index:80;
  transform:translateX(100%);transition:transform .26s cubic-bezier(.4,0,.2,1);
  overflow-y:auto;overscroll-behavior:contain;box-shadow:-8px 0 30px rgba(0,0,0,.16)}
body.mo-dr .dr{transform:none}
.dr-dau{display:flex;align-items:center;justify-content:space-between;padding:14px 16px;border-bottom:1px solid var(--vien)}
.dr-dong{background:none;border:0;font-size:28px;line-height:1;color:var(--mo);cursor:pointer}
.dr-menu{display:flex;flex-direction:column;padding:8px 0 70px}
.dr-menu a{padding:12px 18px;color:var(--chu);font-size:15.5px;font-weight:500;display:flex;
  align-items:center;justify-content:space-between;gap:8px}
.dr-menu a:hover{background:var(--nen2)}
.dr-con{padding-left:30px!important;font-size:14.5px!important;color:var(--mo)!important}
.dr-so{font-size:12px;color:var(--mo);background:var(--nen2);border:1px solid var(--vien);
  border-radius:999px;padding:1px 8px}
.dr-nhom{padding:16px 18px 6px;font-size:11.5px;font-weight:700;color:var(--mo);
  text-transform:uppercase;letter-spacing:.7px}
.dr-cta{color:var(--chinh)!important;font-weight:700!important}

/* ── HERO ── */
.hero{background:linear-gradient(165deg,#083b37 0%,#0f766e 55%,#14b8a6 100%);color:#fff;
  padding:58px 0 64px;position:relative;overflow:hidden}
.hero::after{content:'';position:absolute;right:-110px;top:-110px;width:420px;height:420px;
  border-radius:50%;background:rgba(255,255,255,.07)}
.hero h1{font-size:34px;line-height:1.2;letter-spacing:-.9px;margin:0 0 14px;font-weight:800;max-width:760px}
.hero .dan{font-size:17.5px;line-height:1.6;opacity:.94;max-width:640px;margin:0 0 26px}
.hero-nut{display:flex;gap:11px;flex-wrap:wrap;margin-bottom:26px}
.hero-so{display:flex;gap:28px;flex-wrap:wrap;padding-top:22px;border-top:1px solid rgba(255,255,255,.2)}
.hero-so b{display:block;font-size:25px;font-weight:800;line-height:1.2}
.hero-so span{font-size:13.5px;opacity:.85}

/* ── khối chung ── */
.kh{padding:54px 0}
.kh-xam{background:var(--nen2)}
.kh-dau{max-width:700px;margin:0 auto 34px;text-align:center}
.kh-dau h2{font-size:27px;line-height:1.28;letter-spacing:-.6px;margin:0 0 10px;font-weight:750}
.kh-dau p{color:var(--mo);font-size:16.5px;margin:0}
.nhan-kh{display:inline-block;background:var(--chinh-mo);color:var(--chinh);font-size:12.5px;
  font-weight:700;padding:5px 13px;border-radius:999px;margin-bottom:12px;letter-spacing:.4px}

.luoi3{display:grid;gap:18px;grid-template-columns:repeat(auto-fit,minmax(270px,1fr))}
.luoi2{display:grid;gap:18px;grid-template-columns:repeat(auto-fit,minmax(330px,1fr))}
.the{background:var(--nen);border:1px solid var(--vien);border-radius:15px;padding:22px;box-shadow:var(--bong)}
.the h3{margin:0 0 8px;font-size:17.5px;font-weight:700;line-height:1.35}
.the p{margin:0;color:var(--mo);font-size:15px;line-height:1.6}
.the-bt{width:42px;height:42px;border-radius:11px;background:var(--chinh-mo);color:var(--chinh);
  display:grid;place-items:center;font-size:20px;margin-bottom:13px}

/* vấn đề → cách giải */
.vd{display:flex;gap:13px;padding:15px 0;border-bottom:1px solid var(--vien);align-items:flex-start}
.vd:last-child{border-bottom:0}
.vd-x{flex:0 0 26px;height:26px;border-radius:50%;background:#fdecea;color:var(--do);
  display:grid;place-items:center;font-weight:700;font-size:15px}
.vd-v{flex:0 0 26px;height:26px;border-radius:50%;background:#e7f6ee;color:var(--xanh);
  display:grid;place-items:center;font-weight:700;font-size:15px}
.vd b{display:block;margin-bottom:3px;font-size:15.5px}
.vd span{color:var(--mo);font-size:14.5px;line-height:1.55}

/* bảng giá */
.gia{display:grid;gap:18px;grid-template-columns:repeat(auto-fit,minmax(255px,1fr));align-items:start}
.gia-the{background:var(--nen);border:1.5px solid var(--vien);border-radius:16px;padding:26px 22px;position:relative}
.gia-the.nhan{border-color:var(--chinh);box-shadow:0 14px 40px -18px rgba(15,118,110,.45)}
.gia-co{position:absolute;top:-12px;left:22px;background:var(--chinh);color:#fff;font-size:12px;
  font-weight:700;padding:4px 12px;border-radius:999px}
.gia-ten{font-size:15px;font-weight:700;color:var(--mo);text-transform:uppercase;letter-spacing:.6px}
.gia-so{font-size:31px;font-weight:800;margin:9px 0 3px;letter-spacing:-1px}
.gia-dv{font-size:14px;color:var(--mo)}
.gia-ds{list-style:none;padding:18px 0 0;margin:18px 0 0;border-top:1px solid var(--vien)}
.gia-ds li{padding:7px 0 7px 26px;position:relative;font-size:14.8px;line-height:1.5}
.gia-ds li::before{content:'✓';position:absolute;left:0;color:var(--xanh);font-weight:700}
.gia-ds li.khong{color:var(--mo)}
.gia-ds li.khong::before{content:'—';color:var(--mo)}

/* FAQ */
.faq{max-width:780px;margin:0 auto}
.faq details{border:1px solid var(--vien);border-radius:12px;margin-bottom:10px;background:var(--nen);overflow:hidden}
.faq summary{padding:16px 19px;font-weight:650;cursor:pointer;font-size:16px;list-style:none;
  display:flex;justify-content:space-between;gap:12px;align-items:center}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:'+';font-size:21px;color:var(--chinh);font-weight:400;flex:0 0 auto}
.faq details[open] summary::after{content:'−'}
.faq-nd{padding:0 19px 17px;color:var(--mo);font-size:15.3px;line-height:1.68}

/* form đăng ký */
.dk{background:linear-gradient(160deg,#083b37,#0f766e);color:#fff;padding:52px 0}
.dk-in{display:grid;gap:30px;grid-template-columns:1fr 1fr;align-items:center;max-width:980px;margin:0 auto}
.dk h2{font-size:27px;margin:0 0 12px;letter-spacing:-.6px;font-weight:750}
.dk p{opacity:.93;margin:0 0 16px;font-size:16px;line-height:1.6}
.dk-ds{list-style:none;padding:0;margin:0}
.dk-ds li{padding:5px 0 5px 25px;position:relative;font-size:15px;opacity:.95}
.dk-ds li::before{content:'✓';position:absolute;left:0;font-weight:700}
.dk-hop{background:var(--nen);color:var(--chu);border-radius:16px;padding:24px;box-shadow:0 20px 50px -20px rgba(0,0,0,.5)}
.dk-hop label{display:block;font-size:13.5px;font-weight:650;margin:12px 0 5px}
.dk-hop label:first-of-type{margin-top:0}
.dk-hop input,.dk-hop textarea,.dk-hop select{width:100%;padding:11px 13px;border:1px solid var(--vien);
  border-radius:10px;font:inherit;font-size:15px;background:var(--nen);color:var(--chu)}
.dk-hop textarea{min-height:78px;resize:vertical}
.dk-giup{font-size:12.5px;color:var(--mo);margin-top:5px}

/* ── BLOG ── */
.bl-dau{padding-top:38px;padding-bottom:8px}
.bl-dau h1{font-size:30px;letter-spacing:-.8px;margin:0 0 8px;line-height:1.22}
.bl-dau p{color:var(--mo);margin:0;font-size:16.5px;max-width:720px}
.dm-hang{display:flex;gap:9px;flex-wrap:wrap;padding:20px 0 4px}
.dm-chip{padding:7px 15px;border:1px solid var(--vien);border-radius:999px;font-size:14px;
  color:var(--chu);background:var(--nen);white-space:nowrap}
.dm-chip.on,.dm-chip:hover{background:var(--chinh-mo);border-color:var(--chinh);color:var(--chinh);font-weight:600}
.dm-chip em{font-style:normal;color:var(--mo);font-size:12.5px;margin-left:4px}

.bai-luoi{display:grid;gap:20px;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));padding:22px 0 40px}
.bai{background:var(--nen);border:1px solid var(--vien);border-radius:15px;overflow:hidden;
  display:flex;flex-direction:column;transition:transform .14s,box-shadow .14s}
.bai:hover{transform:translateY(-3px);box-shadow:var(--bong)}
.bai-anh{aspect-ratio:3/2;background:var(--nen2);overflow:hidden}
.bai-anh img{width:100%;height:100%;object-fit:cover}
.bai-td{padding:16px 17px 18px;display:flex;flex-direction:column;flex:1}
.bai-dm{font-size:12px;font-weight:700;color:var(--chinh);text-transform:uppercase;letter-spacing:.5px;margin-bottom:7px}
.bai-td h3{margin:0 0 8px;font-size:17.5px;line-height:1.37;font-weight:700}
.bai-td h3 a{color:var(--chu)}
.bai-td h3 a:hover{color:var(--chinh)}
.bai-tl{color:var(--mo);font-size:14.6px;line-height:1.6;margin:0 0 13px;flex:1}
.bai-chan{display:flex;gap:12px;font-size:12.8px;color:var(--mo);align-items:center}

/* bài chi tiết */
.bv{max-width:780px;margin:0 auto;padding-top:26px;padding-bottom:56px}  /* MOBILE_LE_v1: không dùng padding tắt — đè mất lề 16px của .bo */
.bv-duong{font-size:13.3px;color:var(--mo);margin-bottom:14px}
.bv-duong a{color:var(--mo)}
.bv h1{font-size:31px;line-height:1.24;letter-spacing:-.8px;margin:0 0 13px;font-weight:800}
.bv-meta{display:flex;gap:14px;flex-wrap:wrap;color:var(--mo);font-size:13.6px;
  padding-bottom:18px;margin-bottom:22px;border-bottom:1px solid var(--vien)}
.bv-anh{border-radius:15px;overflow:hidden;margin-bottom:26px}
.bv-tl{font-size:18px;line-height:1.68;color:var(--chu);background:var(--nen2);
  border-left:3px solid var(--chinh);padding:16px 19px;border-radius:0 12px 12px 0;margin-bottom:26px}
.bv-nd{font-size:16.8px;line-height:1.78}
.bv-nd h2{font-size:23px;margin:36px 0 13px;letter-spacing:-.5px;line-height:1.3;font-weight:750}
.bv-nd h3{font-size:18.5px;margin:26px 0 10px;font-weight:700}
.bv-nd p{margin:0 0 17px}
.bv-nd ul,.bv-nd ol{margin:0 0 18px;padding-left:23px}
.bv-nd li{margin-bottom:8px}
.bv-nd strong{font-weight:650}
.bv-nd table{width:100%;border-collapse:collapse;margin:20px 0;font-size:15.3px;display:block;overflow-x:auto}
.bv-nd th,.bv-nd td{padding:10px 13px;border:1px solid var(--vien);text-align:left;vertical-align:top}
.bv-nd th{background:var(--nen2);font-weight:700;font-size:14px}
.bv-nd blockquote{margin:20px 0;padding:14px 18px;background:var(--nen2);border-left:3px solid var(--vang);
  border-radius:0 10px 10px 0;color:var(--mo)}
.bv-nd code{background:var(--nen2);padding:2px 6px;border-radius:5px;font-size:14.5px}
.bv-the{display:flex;gap:8px;flex-wrap:wrap;margin:30px 0 0;padding-top:22px;border-top:1px solid var(--vien)}
.bv-the a{font-size:13.3px;padding:6px 13px;background:var(--nen2);border:1px solid var(--vien);
  border-radius:999px;color:var(--mo)}
.bv-the a:hover{color:var(--chinh);border-color:var(--chinh)}
.bv-luu{margin-top:26px;padding:15px 18px;background:#fff8e6;border:1px solid #f3dc9a;
  border-radius:12px;font-size:14.6px;color:#6b4a00}
@media (prefers-color-scheme:dark){:root:not([data-theme=light]) .bv-luu{background:#2a2006;border-color:#5a4714;color:#f0d89a}}

.cta-bai{margin:34px 0 0;padding:26px;background:linear-gradient(150deg,#083b37,#0f766e);
  color:#fff;border-radius:16px}
.cta-bai h3{margin:0 0 8px;font-size:20px;font-weight:750}
.cta-bai p{margin:0 0 15px;opacity:.93;font-size:15.3px;line-height:1.6}

.lq{padding-bottom:54px}
.lq h2{font-size:22px;margin:0 0 18px;font-weight:750}
.trong{text-align:center;padding:52px 18px;color:var(--mo)}
.bao-ok{background:#e7f6ee;color:#0a5c38;border:1px solid #a9ddc2;padding:13px 16px;border-radius:11px;margin-bottom:16px}
.bao-loi{background:#fdecea;color:#8c1d14;border:1px solid #f3b8b2;padding:13px 16px;border-radius:11px;margin-bottom:16px}

/* ── FOOTER ── */
.ft{background:var(--nen2);border-top:1px solid var(--vien);padding:44px 0 0;margin-top:10px}
.ft-in{display:grid;gap:30px;grid-template-columns:1.6fr 1fr 1fr 1fr;padding-bottom:34px}
.ft-hieu{font-size:21px;margin-bottom:11px}
.ft-cot h3{font-size:13px;text-transform:uppercase;letter-spacing:.7px;color:var(--mo);margin:0 0 12px;font-weight:700}
.ft-cot a{display:block;padding:5px 0;color:var(--chu);font-size:14.8px}
.ft-cot a:hover{color:var(--chinh)}
.ft-cot-rong p{color:var(--mo);font-size:14.7px;line-height:1.65;margin:0 0 16px;max-width:380px}
.ft-cuoi{display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  padding:16px 16px 20px;border-top:1px solid var(--vien);color:var(--mo);font-size:13.3px}

/* ── BOTTOM-NAV ── */
.bn{display:none;position:fixed;bottom:0;left:0;right:0;z-index:55;background:var(--nen);
  border-top:1px solid var(--vien);padding:5px 2px calc(5px + env(safe-area-inset-bottom))}
.bn a{flex:1;display:flex;flex-direction:column;align-items:center;gap:2px;padding:6px 2px;
  font-size:10.8px;color:var(--mo);font-weight:500;text-align:center}
.bn a.on{color:var(--chinh)}
.bn a.bn-cta{color:var(--chinh);font-weight:700}
.bn-bt{font-size:17px;line-height:1}

@media (max-width:1000px){ .ft-in{grid-template-columns:1fr 1fr} .dk-in{grid-template-columns:1fr} }
@media (max-width:860px){
  .tb-menu{display:none}
  .tb-ham{display:flex}
  .bn{display:flex}
  body{padding-bottom:62px}
  .hero{padding:40px 0 46px}
  .hero h1{font-size:27px;letter-spacing:-.6px}
  .hero .dan{font-size:16.3px}
  .hero-so{gap:20px}
  .hero-so b{font-size:21px}
  .kh{padding:40px 0}
  .kh-dau h2,.dk h2{font-size:23px}
  .bv h1{font-size:25px}
  .bv-nd{font-size:16.4px}
  .bv-nd h2{font-size:20.5px;margin-top:30px}
  .bl-dau h1{font-size:25px}
  .ft-in{grid-template-columns:1fr;gap:22px}
  .ft{padding-top:34px}
}
@media (max-width:420px){ .hero h1{font-size:24px} .nut{padding:12px 18px} }

/* ═══ CH_O_VUONG_v1 — ô vuông kiểu Content Hub: 2 cột ngay trên điện thoại, mỗi ô một nền màu nhạt ═══ */
:root{
  --o-lam:#eaf2ff; --o-lam-v:#c9dcfb; --o-troi:#e6f6fd; --o-troi-v:#bfe6f7;
  --o-luc:#e8f7ee; --o-luc-v:#bfe7cf; --o-vang:#fff6dc; --o-vang-v:#f6dfa0;
  --o-hong:#fdecf1; --o-hong-v:#f6c6d4; --o-tim:#f2edff; --o-tim-v:#d9cdfb;
  --o-cam:#fff0e3; --o-cam-v:#f7cfaa; --o-do:#fdeeee; --o-do-v:#f5c9c6; --o-xam:#f3f5f8; --o-xam-v:#dfe4ea;
}
@media (prefers-color-scheme:dark){:root:not([data-theme=light]){
  --o-lam:#13213a; --o-lam-v:#22375e; --o-troi:#0f2631; --o-troi-v:#1c4253;
  --o-luc:#10261b; --o-luc-v:#1f4632; --o-vang:#2a2310; --o-vang-v:#4c3f17;
  --o-hong:#2c1520; --o-hong-v:#4d2537; --o-tim:#1f1a33; --o-tim-v:#372d5c;
  --o-cam:#2c1d10; --o-cam-v:#4e331b; --o-do:#2d1514; --o-do-v:#4e2724; --o-xam:#161d26; --o-xam-v:#283241;
}}
.o-luoi{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
@media (min-width:760px){.o-luoi{grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}}
@media (min-width:1080px){.o-luoi{grid-template-columns:repeat(4,minmax(0,1fr))}}
.o{display:flex;flex-direction:column;gap:4px;padding:14px 13px 13px;border-radius:14px;color:var(--chu);
  border:1px solid transparent;min-height:118px;transition:transform .12s,box-shadow .12s}
a.o:hover{transform:translateY(-2px);box-shadow:var(--bong)}
.o-bt{font-size:24px;line-height:1;margin-bottom:6px}
.o-ten{font-weight:700;font-size:14.6px;line-height:1.32}
.o-phu{font-size:12.6px;line-height:1.42;color:var(--mo)}
.o-lam{background:var(--o-lam);border-color:var(--o-lam-v)} .o-troi{background:var(--o-troi);border-color:var(--o-troi-v)}
.o-luc{background:var(--o-luc);border-color:var(--o-luc-v)} .o-vang{background:var(--o-vang);border-color:var(--o-vang-v)}
.o-hong{background:var(--o-hong);border-color:var(--o-hong-v)} .o-tim{background:var(--o-tim);border-color:var(--o-tim-v)}
.o-cam{background:var(--o-cam);border-color:var(--o-cam-v)} .o-do{background:var(--o-do);border-color:var(--o-do-v)}
.o-xam{background:var(--o-xam);border-color:var(--o-xam-v)}

/* Ô số liệu trong hero — trắng, số to màu (như ô thống kê của mamnon) */
.hero-nhan{display:inline-block;background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.28);
  color:#fff;font-size:12.5px;font-weight:600;padding:5px 11px;border-radius:999px;margin-bottom:14px}
.so-luoi{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;margin-top:26px}
@media (min-width:760px){.so-luoi{grid-template-columns:repeat(6,minmax(0,1fr));gap:12px}}
.so-o{background:#fff;border-radius:12px;padding:11px 10px 10px;display:flex;flex-direction:column;gap:3px;
  box-shadow:0 6px 18px -10px rgba(0,0,0,.35)}
.so-o b{font-size:22px;line-height:1.1;font-weight:800;color:#0f766e;letter-spacing:-.5px}
.so-o:nth-child(2) b{color:#0a7d4b} .so-o:nth-child(3) b{color:#b45309} .so-o:nth-child(4) b{color:#7c3aed}
.so-o:nth-child(5) b{color:#c0392b} .so-o:nth-child(6) b{color:#0e7490}
.so-o span{font-size:11.6px;line-height:1.35;color:#5b6878}
.hero-so{display:none}

/* Tiêu đề mục căn trái + vạch màu, link "xem tất cả" bên phải (kiểu mamnon) */
.kh-dau-trai{text-align:left;display:flex;align-items:baseline;justify-content:space-between;gap:12px;
  max-width:none;margin:0 0 16px}
.kh-dau-trai h2{display:flex;align-items:center;gap:9px;margin:0;font-size:21px}
.vach{display:inline-block;width:4px;height:20px;border-radius:2px;background:var(--vang);flex:none}
.kh-xem{font-size:13.5px;font-weight:600;white-space:nowrap}

/* Thẻ đánh số 01–04 (kiểu "Những quyền lợi nổi bật" của grenada) */
.the-so-ds{display:grid;gap:10px}
@media (min-width:760px){.the-so-ds{grid-template-columns:repeat(2,minmax(0,1fr))}}
.the-so{display:flex;gap:13px;align-items:flex-start;background:var(--nen);border:1px solid var(--vien);
  border-radius:12px;padding:14px}
.the-so>b{font-size:20px;font-weight:800;color:var(--chinh);font-variant-numeric:tabular-nums;line-height:1.2;flex:none}
.the-so h3{margin:0 0 3px;font-size:15px;line-height:1.35} .the-so p{margin:0;font-size:13.6px;color:var(--mo);line-height:1.5}

/* Mốc thời gian có chấm (kiểu "Quy trình" của grenada) */
.moc{list-style:none;margin:0;padding:0 0 0 22px;position:relative}
.moc:before{content:"";position:absolute;left:6px;top:8px;bottom:8px;width:2px;background:var(--vien)}
.moc li{position:relative;padding:0 0 18px}
.moc li:before{content:"";position:absolute;left:-21px;top:6px;width:12px;height:12px;border-radius:50%;
  background:var(--chinh);box-shadow:0 0 0 3px var(--chinh-mo)}
.moc b{display:block;font-size:15.5px;margin-bottom:3px} .moc span{display:block;font-size:14px;color:var(--mo);line-height:1.55}

/* Danh sách bài dạng hàng, ảnh vuông nhỏ bên trái (kiểu "Bảng tin" của mamnon) */
.tin-ds{display:flex;flex-direction:column}
.tin-hang{display:flex;gap:12px;align-items:flex-start;padding:12px 0;border-bottom:1px solid var(--vien);color:var(--chu)}
.tin-hang:last-child{border-bottom:0}
.tin-hang img{width:84px;height:84px;object-fit:cover;border-radius:10px;flex:none;background:var(--nen2)}
.tin-nd{display:flex;flex-direction:column;gap:6px;min-width:0}
.tin-td{font-weight:650;font-size:15px;line-height:1.38;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.tin-meta{display:flex;gap:8px;align-items:center;font-size:12.4px;color:var(--mo)}
.tin-the{background:var(--o-luc);color:var(--xanh);font-weight:650;padding:1px 8px;border-radius:999px;font-size:11.6px}

/* Danh sách bài trên ĐIỆN THOẠI: hàng gọn, ảnh vuông 96px bên trái — thay thẻ to bản một cột */
@media (max-width:640px){
  .bai-luoi{grid-template-columns:1fr;gap:0}
  .bai{flex-direction:row;align-items:flex-start;gap:12px;border:0;border-bottom:1px solid var(--vien);
    border-radius:0;box-shadow:none;padding:14px 0;background:none}
  .bai-anh{flex:none;width:96px;height:96px;border-radius:10px;overflow:hidden;aspect-ratio:auto}
  .bai-anh img{width:96px;height:96px;object-fit:cover}
  .bai-td{padding:0;min-width:0}
  .bai-td h3{font-size:15.4px;line-height:1.38;margin:2px 0 4px}
  .bai-tl{display:none}
  .bai-dm{font-size:10.8px}
  .bai-chan{margin-top:4px;font-size:12px}
}

/* ═══ THANH_TOAN_v1 — bảng giá, form mua, trang QR ═══ */
.ky-chon{display:inline-flex;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.3);border-radius:999px;padding:4px;margin-top:18px}
.ky-chon button{background:none;border:0;color:#fff;font:inherit;font-size:14px;font-weight:600;padding:8px 16px;border-radius:999px;cursor:pointer}
.ky-chon button.on{background:#fff;color:var(--chinh-dam)}
.ky-chon em{font-style:normal;font-size:11px;background:var(--vang);color:#3b2a00;border-radius:999px;padding:1px 7px;margin-left:4px}
.gia-luoi{display:grid;gap:14px;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));align-items:stretch}
.gia-o{background:var(--nen);border:1.5px solid var(--vien);border-radius:16px;padding:22px 18px;position:relative;display:flex;flex-direction:column}
.gia-o .nut{margin-top:auto;text-align:center}
.gia-o .gia-ds{flex:1;margin-bottom:16px}
.gia-noi{border-color:var(--chinh);background:var(--o-lam);box-shadow:0 14px 40px -18px rgba(15,118,110,.45)}
.gia-mt{font-size:13.6px;color:var(--mo);margin:10px 0 0;line-height:1.5}
.gia-chi{display:grid;grid-template-columns:repeat(3,1fr);gap:6px;margin-top:14px}
.gia-chi span{background:var(--nen2);border-radius:10px;padding:8px 6px;font-size:11.5px;color:var(--mo);text-align:center;line-height:1.3}
.gia-noi .gia-chi span{background:var(--nen)}
.gia-chi b{display:block;font-size:15px;color:var(--chu)}
.mua-hop label{display:block;font-size:13.5px;font-weight:650;margin:14px 0 6px}
.mua-hop input:not([type=radio]),.mua-hop select{width:100%;padding:12px 13px;border:1px solid var(--vien);border-radius:10px;font:inherit;font-size:16px;background:var(--nen);color:var(--chu)}
.mua-ky{grid-template-columns:repeat(2,minmax(0,1fr))!important}
.mua-o{cursor:pointer;min-height:76px;position:relative}
.mua-o input{position:absolute;opacity:0;pointer-events:none}
.mua-o.on{background:var(--o-lam);border-color:var(--chinh);box-shadow:0 0 0 2px var(--chinh) inset}
.bao-mua{background:var(--o-vang);border:1px solid var(--o-vang-v);border-radius:10px;padding:11px 13px;font-size:14px;margin:14px 0}
.bao-ck{border-radius:10px;padding:11px 14px;margin:14px 0 0;font-size:14.5px}
.bao-ck-ok{background:var(--o-luc);border:1px solid var(--o-luc-v)} .bao-ck-loi{background:var(--o-do);border:1px solid var(--o-do-v)}
.tt-qr{display:flex;justify-content:center;margin:6px 0 8px}
.tt-qr img{width:min(320px,86vw);height:auto;border-radius:14px;background:#fff;padding:8px;border:1px solid var(--vien)}
.tt-bang{border:1px solid var(--vien);border-radius:14px;overflow:hidden;margin:16px 0}
.tt-bang>div{display:flex;align-items:center;gap:10px;padding:11px 14px;border-bottom:1px solid var(--vien)}
.tt-bang>div:last-child{border-bottom:0}
.tt-bang span{color:var(--mo);font-size:13.5px;min-width:98px}
.tt-bang b{flex:1;font-size:15.5px;word-break:break-all}
.tt-ma{color:var(--chinh);letter-spacing:.5px}
.chep{background:var(--chinh-mo);color:var(--chinh);border:0;border-radius:8px;padding:6px 11px;font:inherit;font-size:12.5px;font-weight:650;cursor:pointer}
.tt-dang{display:flex;align-items:center;gap:9px;font-size:14px;color:var(--mo)}
.tt-cham{width:10px;height:10px;border-radius:50%;background:var(--vang);animation:ttnhap 1.2s infinite}
@keyframes ttnhap{0%,100%{opacity:1}50%{opacity:.25}}
.tt-xong{text-align:center;background:var(--o-luc);border:1px solid var(--o-luc-v);border-radius:16px;padding:26px 18px}
.tt-xong .o-bt{font-size:40px}
.han-thanh{height:10px;border-radius:999px;background:var(--nen2);overflow:hidden;border:1px solid var(--vien)}
.han-thanh span{display:block;height:100%;background:var(--xanh);border-radius:999px}
.han-thanh span.sap{background:var(--vang)} .han-thanh span.het{background:var(--do)}
.mua-hop label.o{display:flex;margin:0;font-weight:400}   /* .mua-hop label{display:block} đè mất bố cục ô */
.mua-hop label.o .o-ten{font-weight:700}

/* ═══ CH_KHUNG_v2 — logo, nút tài khoản luôn hiện, drawer ô vuông, bottom-nav nút giữa nổi ═══ */
.lg{display:flex;align-items:center;gap:9px;color:var(--chu);min-width:0}
.lg-bt{width:36px;height:36px;flex:none;filter:drop-shadow(0 4px 8px rgba(15,118,110,.28))}
.lg-chu{display:flex;flex-direction:column;line-height:1.1;min-width:0}
.lg-ten{font-weight:800;font-size:19px;letter-spacing:-.4px;white-space:nowrap}
.lg-ten b{color:var(--chinh);font-weight:800}
.lg-phu{font-size:10.6px;color:var(--mo);font-weight:600;letter-spacing:.2px;white-space:nowrap}
.tb-tk{display:flex;align-items:center;gap:6px;color:var(--chu);font-weight:600;font-size:14px;padding:6px 10px;
  border:1px solid var(--vien);border-radius:999px;white-space:nowrap}
.tb-tk:hover{border-color:var(--chinh);color:var(--chinh)}
.tb-tk svg{width:20px;height:20px;flex:none}
@media (max-width:860px){
  .tb-thu{display:none}                       /* "Dùng thử" đã là nút giữa bottom-nav */
  .tb-tk{flex-direction:column;gap:1px;border:0;padding:2px 4px;font-size:10.5px;font-weight:650}
  .tb-tk svg{width:23px;height:23px}
  .lg-bt{width:34px;height:34px} .lg-ten{font-size:18px}
}
@media (max-width:360px){ .lg-phu{display:none} }

.dr-than{padding:14px 14px 90px}
.dr-tk{display:flex;align-items:center;gap:12px;background:var(--chinh);color:#fff;border-radius:14px;padding:13px 14px;margin-bottom:14px}
.dr-tk svg{width:26px;height:26px;flex:none}
.dr-tk span{display:flex;flex-direction:column;flex:1;line-height:1.3}
.dr-tk b{font-size:15.5px} .dr-tk em{font-style:normal;font-size:12.2px;opacity:.85}
.dr-tk i{font-style:normal;font-size:22px;opacity:.8}
.dr-o{grid-template-columns:repeat(2,minmax(0,1fr))!important;gap:9px}
.dr-o .o{min-height:84px;padding:11px}
.dr-o .o-bt{font-size:21px;margin-bottom:3px}
.dr-o .o-ten{font-size:13.8px}
.dr-than .dr-nhom{margin:18px 2px 9px}

.bn{height:64px;padding:0 4px env(safe-area-inset-bottom);box-shadow:0 -6px 20px -12px rgba(16,24,40,.25);overflow:visible}
.bn a{font-size:10.8px;font-weight:600;color:var(--mo);gap:3px;padding:8px 2px 6px;position:relative}
.bn a svg{width:24px;height:24px}
.bn a.on{color:var(--chinh)}
.bn a.on::before{content:"";position:absolute;top:0;left:30%;right:30%;height:3px;border-radius:0 0 3px 3px;background:var(--chinh)}
.bn-giua{color:var(--chu)!important}
.bn-giua::before{display:none}
.bn-tron{width:54px;height:54px;margin-top:-26px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(145deg,#0f766e,#14b8a6);box-shadow:0 8px 18px -6px rgba(15,118,110,.6),0 0 0 4px var(--nen)}
.bn-tron svg{width:26px;height:26px}
body{padding-bottom:0}
@media (max-width:860px){ body{padding-bottom:70px} }

/* BN_KHONG_DEP_v1 — Safari iOS thu thanh công cụ khi cuộn ⇒ env(safe-area-inset-bottom) phình ra; bản trước
   cao cố định 64px nên nội dung bị ép, nút tròn méo (anh Thiện: "kéo xuống là bị dẹp"). Cao = 64px + vùng an toàn. */
.bn{height:auto;min-height:64px;padding:0 4px env(safe-area-inset-bottom);box-sizing:content-box}
.bn a{min-height:64px;flex-shrink:0}
.bn-tron{flex:none;min-width:54px;min-height:54px}
.bn a svg{flex:none}
@media (max-width:860px){ body{padding-bottom:calc(72px + env(safe-area-inset-bottom))} }

/* DR_DANH_SACH_v1 — danh mục trong drawer là danh sách gọn (biểu tượng + tên + số bài), không làm ô.
   Anh Thiện: "ô nhiều quá cũng rối … chỉ cần emoji, có số bài như contenthub khác". */
.dr-ds{display:flex;flex-direction:column;margin:0 -4px}
.dr-ds a{display:flex;align-items:center;gap:11px;padding:11px 8px;border-radius:10px;color:var(--chu);font-size:15px;font-weight:550}
.dr-ds a:active,.dr-ds a:hover{background:var(--nen2)}
.dr-ds .dr-bt{font-size:19px;width:26px;text-align:center;flex:none}
.dr-ds .dr-ten{flex:1;min-width:0}
.dr-ds .dr-dem{font-size:12.5px;color:var(--mo);background:var(--nen2);border:1px solid var(--vien);border-radius:999px;padding:1px 9px;font-weight:600}

/* Drawer mở thì ẩn bóng chat — không đè lên danh sách chủ đề */
body.mo-dr .aitl-b,body.mo-dr .aitl-k{display:none!important}

/* HE_SINH_THAI_v1 */
.ft-eco{flex-basis:100%;color:var(--mo);font-size:14px;line-height:1.7}
.ft-eco a{color:var(--chu)}
.ft-eco a:hover{color:var(--chinh)}

/* HUONG_DAN_v1 */
.hd .hd-muc{margin:6px 0 30px}
.hd-buoc{counter-reset:b;list-style:none;padding:0;margin:14px 0 18px}
.hd-buoc>li{counter-increment:b;position:relative;padding:2px 0 12px 44px}
.hd-buoc>li::before{content:counter(b);position:absolute;left:0;top:0;width:30px;height:30px;border-radius:50%;
  background:var(--chinh);color:#fff;font-weight:700;font-size:14.5px;display:flex;align-items:center;justify-content:center}
.hd-ghi{background:var(--nen2);border:1px solid var(--vien);border-radius:12px;padding:13px 16px;font-size:15.5px}
.hd-sc dt{font-weight:700;margin:18px 0 4px}
.hd-sc dd{margin:0;color:var(--chu)}
.bv-nd h2[id]{scroll-margin-top:84px}

/* ── AiTroThu: hero hai cột + điện thoại mẫu ── */
.hero-hai{display:grid;grid-template-columns:1fr;gap:26px;align-items:center}
@media(min-width:900px){.hero-hai{grid-template-columns:1.15fr .85fr}}
.dt-mau{background:#fff;color:#0f172a;border-radius:22px;padding:14px 14px 10px;box-shadow:0 22px 50px -18px rgba(0,0,0,.45);max-width:420px;width:100%;justify-self:center}
.dt-dau{display:flex;align-items:center;gap:8px;padding:2px 4px 10px;border-bottom:1px solid #e5e7eb;margin-bottom:10px}
.dt-dau b{font-size:15px}.dt-dau span{font-size:12px;color:#0f766e;margin-left:auto}
.dt-lg{width:28px;height:28px}
.dt-tin{max-width:86%;padding:9px 12px;border-radius:16px;font-size:14.5px;line-height:1.45;margin:6px 0}
.dt-ra{margin-left:auto;background:#0f766e;color:#fff;border-bottom-right-radius:5px}
.dt-vao{background:#f1f5f9;border-bottom-left-radius:5px}
.dt-chu{font-size:11.5px;color:#64748b;text-align:center;margin-top:8px}
@media(prefers-color-scheme:dark){.dt-mau{background:#0b1514;color:#e2e8f0}.dt-vao{background:#16302d}.dt-dau{border-color:#1f3a37}}
.ngay-ds{display:grid;gap:10px}
.ngay{display:flex;gap:14px;align-items:flex-start;background:var(--nen,#fff);border:1px solid var(--vien,#e5e7eb);border-radius:14px;padding:14px}
.ngay-gio{flex:0 0 62px;font-weight:800;color:var(--chinh);font-size:17px}
.ngay b{display:block;margin-bottom:3px}.ngay p{margin:0;color:var(--phu,#475569);font-size:14.5px}
.hang-nut{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}
/* Bảng giá AiTroThu: hai tầng (setup + tháng) */
.gia-tang{margin:8px 0 26px}
.gia-tang h2{margin:0 0 6px}
.gia-ghi{color:var(--phu,#475569);margin:0 0 14px}
.bang-so-sanh{width:100%;border-collapse:collapse;font-size:14.5px}
.bang-so-sanh th,.bang-so-sanh td{padding:10px 8px;border-bottom:1px solid var(--vien,#e5e7eb);text-align:left;vertical-align:top}
.bang-so-sanh th{background:var(--chinh-mo)}
.tinh-tien{background:var(--chinh-mo);border-radius:14px;padding:16px;margin-top:14px}
.tinh-tien b{color:var(--chinh-dam)}

/* ═══ VIDEO_GT_v1 — nút xem video giới thiệu (hero trang chủ) + popup (chép từ AiTraLoi) ═══ */
.vgt-nut{display:inline-flex;align-items:center;gap:13px;margin:-8px 0 26px;padding:7px 18px 7px 7px;border:0;cursor:pointer;
  background:rgba(255,255,255,.12);border-radius:999px;color:#fff;font:inherit;text-align:left;
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.28);transition:background .2s}
.vgt-nut:hover{background:rgba(255,255,255,.2)}
.vgt-bia{position:relative;flex:none;width:56px;height:56px;border-radius:50%;overflow:hidden;background:#fff}
.vgt-bia img{width:100%;height:100%;object-fit:cover;display:block}
.vgt-bia i{position:absolute;inset:0;background:rgba(6,46,43,.35);display:flex;align-items:center;justify-content:center}
.vgt-bia i::after{content:'';margin-left:4px;border-style:solid;border-width:10px 0 10px 16px;border-color:transparent transparent transparent #fff}
.vgt-nut::before{content:'';position:absolute;left:7px;top:7px;width:56px;height:56px;border-radius:50%;box-shadow:0 0 0 0 rgba(255,255,255,.5);animation:vgt-nhip 2.4s infinite;pointer-events:none}
.vgt-nut{position:relative}
@keyframes vgt-nhip{0%{box-shadow:0 0 0 0 rgba(255,255,255,.45)}70%{box-shadow:0 0 0 14px rgba(255,255,255,0)}100%{box-shadow:0 0 0 0 rgba(255,255,255,0)}}
.vgt-chu b{display:block;font-size:15.5px;font-weight:700;line-height:1.25}
.vgt-chu small{display:block;font-size:13px;opacity:.8}
.vgt-nen{position:fixed;inset:0;z-index:9999;background:rgba(3,24,22,.88);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);
  display:flex;align-items:center;justify-content:center;padding:16px;animation:vgt-hien .2s ease}
.vgt-nen[hidden]{display:none}
@keyframes vgt-hien{from{opacity:0}to{opacity:1}}
.vgt-khung{position:relative;display:flex;flex-direction:column;align-items:center;gap:14px}
.vgt-khung video{display:block;width:min(86vh - 70px,640px,92vw);aspect-ratio:1/1;border-radius:18px;background:#000;box-shadow:0 30px 80px -20px rgba(0,0,0,.7)}
.vgt-nen.doc .vgt-khung video{width:min(92vw,calc((100dvh - 120px) * 9 / 16),506px);height:auto;aspect-ratio:9/16}
.vgt-dong{position:absolute;top:-14px;right:-14px;z-index:2;width:40px;height:40px;border-radius:50%;border:0;cursor:pointer;
  background:#fff;color:#0f1b2d;font-size:18px;font-weight:700;box-shadow:0 8px 24px rgba(0,0,0,.4)}
.vgt-cta{background:#fff;color:var(--chinh);font-weight:800;padding:12px 24px;border-radius:999px;text-decoration:none;font-size:15.5px}
html.vgt-khoa{overflow:hidden}
@media (max-width:700px){ .vgt-dong{top:-10px;right:-6px} }
@media (prefers-reduced-motion:reduce){ .vgt-nut::before{animation:none} }
/* HERO_NUT_GON_v1 — nút video nằm chung hàng nút; mobile chỉ còn [Dùng thử] [▶ Xem video] trên một hàng
   (anh Thiện: "3 cái nút to xếp hàng trên hero hơi xấu"). "Xem tính năng" đã có ở bottom-nav. */
.hero-nut{align-items:center}
.hero-nut .vgt-nut{margin:0 0 0 4px}
.vgt-ngan{display:none}
@media (max-width:600px){
  .hero-nut{flex-wrap:nowrap;gap:10px}
  .hero-nut .nut-vien{display:none}
  .hero-nut .nut-trang{flex:1;padding-left:12px;padding-right:12px;white-space:nowrap}
  .hero-nut .vgt-nut{margin:0;flex:none;gap:9px;padding:5px 14px 5px 5px}
  .vgt-bia,.vgt-nut::before{width:44px;height:44px}
  .vgt-nut::before{left:5px;top:5px}
  .vgt-bia i::after{border-width:8px 0 8px 13px;margin-left:3px}
  .vgt-dai{display:none}.vgt-ngan{display:inline}
  .vgt-chu b{font-size:14.5px}.vgt-chu small{font-size:12px}
}