/* =========================================================
   DC COS — CÔNG TY TNHH DƯỢC MỸ PHẨM DC COS
   Hệ thiết kế: navy #002454 · gold #C9A25A · nền trắng/kem
   ========================================================= */
:root{
  --navy:#002454; --navy-900:#00152F; --navy-800:#001B41; --navy-700:#0B3A70; --navy-600:#14508F;
  --gold:#C9A25A; --gold-light:#E3C68C; --gold-dark:#A8813B; --gold-soft:#F3E7CF;
  --cream:#FBF8F2; --cream-2:#F5F0E6; --white:#fff;
  --ink:#16202E; --body:#39465A; --muted:#6B7789; --line:#E6E2D9; --line-2:#EDEAE3;
  --ok:#1E7A4B; --err:#C0392B;
  --r-sm:8px; --r:14px; --r-lg:22px; --r-pill:999px;
  --sh-sm:0 2px 10px rgba(0,36,84,.06);
  --sh:0 10px 34px rgba(0,36,84,.10);
  --sh-lg:0 24px 60px rgba(0,36,84,.16);
  --ff-d:"Playfair Display",Georgia,"Times New Roman",serif;
  --ff:"Be Vietnam Pro",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;
  --wrap:1200px; --nav-h:78px;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;font-family:var(--ff);font-size:16.5px;line-height:1.72;color:var(--body);background:var(--white);overflow-x:hidden;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
svg{width:1em;height:1em;flex:none}
.topbar svg{width:14px;height:14px;vertical-align:-2px}
.step-time svg{width:13px;height:13px;vertical-align:-1px}
.badge-note svg{width:18px;height:18px}
.card-body p svg{width:14px;height:14px;vertical-align:-2px}
a{color:var(--navy-700);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--gold-dark)}
button{font-family:inherit}
h1,h2,h3,h4,h5{font-family:var(--ff-d);color:var(--navy);margin:0 0 .55em;line-height:1.2;font-weight:700;letter-spacing:-.01em}
h1{font-size:clamp(2rem,4.6vw,3.35rem)}
h2{font-size:clamp(1.6rem,3.2vw,2.5rem)}
h3{font-size:clamp(1.2rem,2vw,1.55rem)}
h4{font-size:1.1rem;font-family:var(--ff);font-weight:700}
p{margin:0 0 1.05em}
ul,ol{margin:0 0 1.05em;padding-left:1.25em}
li{margin-bottom:.4em}
hr{border:0;border-top:1px solid var(--line);margin:2.4rem 0}
::selection{background:var(--gold);color:#fff}
:focus-visible{outline:3px solid var(--gold);outline-offset:2px;border-radius:4px}

/* ---------- layout ---------- */
.wrap{width:min(var(--wrap),calc(100% - 40px));margin-inline:auto}
.wrap-narrow{width:min(880px,calc(100% - 40px));margin-inline:auto}
.sec{padding:clamp(56px,7vw,104px) 0}
.sec-sm{padding:clamp(40px,5vw,68px) 0}
.sec-cream{background:var(--cream)}
.sec-navy{background:var(--navy);color:#D8E1EE}
.sec-navy h2,.sec-navy h3,.sec-navy h4{color:#fff}
.grid{display:grid;gap:26px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
.center{text-align:center}

/* ---------- eyebrow / heading block ---------- */
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:.76rem;font-weight:700;letter-spacing:.19em;text-transform:uppercase;color:var(--gold-dark);margin-bottom:14px;font-family:var(--ff)}
.eyebrow::before{content:"";width:30px;height:2px;background:linear-gradient(90deg,var(--gold),transparent)}
.sec-navy .eyebrow{color:var(--gold-light)}
.sec-head{max-width:760px;margin-bottom:clamp(32px,4vw,54px)}
.sec-head.center{margin-inline:auto}
.sec-head p{font-size:1.05rem;color:var(--muted);margin-bottom:0}
.sec-navy .sec-head p{color:#B9C6D8}
.rule{width:64px;height:3px;background:linear-gradient(90deg,var(--gold),var(--gold-light));border-radius:2px;margin:0 0 20px}
.center .rule{margin-inline:auto}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;padding:14px 28px;border-radius:var(--r-pill);font-weight:600;font-size:.97rem;border:1.5px solid transparent;cursor:pointer;transition:all .25s var(--ease);text-align:center;line-height:1.3;font-family:var(--ff)}
.btn svg{width:18px;height:18px;flex:none}
.btn-gold{background:linear-gradient(135deg,var(--gold-dark),var(--gold) 45%,var(--gold-light));color:#2A1D06;box-shadow:0 8px 22px rgba(201,162,90,.34)}
.btn-gold:hover{color:#2A1D06;transform:translateY(-2px);box-shadow:0 14px 30px rgba(201,162,90,.45)}
.btn-navy{background:var(--navy);color:#fff}
.btn-navy:hover{background:var(--navy-700);color:#fff;transform:translateY(-2px)}
.btn-ghost{border-color:rgba(255,255,255,.5);color:#fff}
.btn-ghost:hover{background:#fff;color:var(--navy);border-color:#fff}
.btn-outline{border-color:var(--navy);color:var(--navy);background:transparent}
.btn-outline:hover{background:var(--navy);color:#fff}
.btn-sm{padding:10px 20px;font-size:.88rem}
.btn-block{width:100%}
.btn-row{display:flex;flex-wrap:wrap;gap:14px}
.center .btn-row{justify-content:center}

/* ---------- header ---------- */
.topbar{background:var(--navy-900);color:#A9BBD2;font-size:.82rem;padding:7px 0}
.topbar .wrap{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap}
.topbar a{color:#D6E0EE}
.topbar a:hover{color:var(--gold-light)}
.topbar-items{display:flex;gap:20px;flex-wrap:wrap;align-items:center}
.topbar-items span{display:inline-flex;align-items:center;gap:6px}
header.site{position:sticky;top:0;z-index:80;background:rgba(255,255,255,.96);backdrop-filter:blur(12px);border-bottom:1px solid var(--line);transition:box-shadow .3s}
header.site.scrolled{box-shadow:var(--sh-sm)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:20px;height:var(--nav-h)}
.brand{display:flex;align-items:center;gap:12px;flex:none}
.brand img{height:52px;width:auto}
.brand-txt{display:flex;flex-direction:column;line-height:1.15}
.brand-txt b{font-family:var(--ff-d);font-size:1.16rem;color:var(--navy);letter-spacing:.02em}
.brand-txt small{font-size:.66rem;letter-spacing:.13em;text-transform:uppercase;color:var(--gold-dark);font-weight:600}
.menu{display:flex;align-items:center;gap:2px;list-style:none;margin:0;padding:0}
.menu>li{position:relative}
.menu>li>a{display:block;padding:10px 13px;font-size:.93rem;font-weight:600;color:var(--navy);border-radius:var(--r-sm);white-space:nowrap}
.menu>li>a:hover,.menu>li.active>a{color:var(--gold-dark);background:var(--cream-2)}
.menu .has>a::after{content:"";display:inline-block;width:6px;height:6px;border-right:1.8px solid currentColor;border-bottom:1.8px solid currentColor;transform:rotate(45deg) translateY(-2px);margin-left:7px}
.submenu{position:absolute;top:calc(100% + 6px);left:0;min-width:262px;background:#fff;border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--sh);padding:9px;list-style:none;margin:0;opacity:0;visibility:hidden;transform:translateY(9px);transition:all .22s var(--ease)}
.menu>li:hover .submenu,.menu>li:focus-within .submenu{opacity:1;visibility:visible;transform:translateY(0)}
.submenu a{display:block;padding:9px 14px;border-radius:var(--r-sm);font-size:.9rem;color:var(--body);font-weight:500}
.submenu a:hover{background:var(--cream);color:var(--navy)}
.nav-cta{display:flex;align-items:center;gap:10px;flex:none}
.burger{display:none;width:46px;height:46px;border:1px solid var(--line);background:#fff;border-radius:var(--r-sm);cursor:pointer;padding:0;place-items:center}
.burger span{display:block;width:21px;height:2px;background:var(--navy);border-radius:2px;position:relative;transition:.25s}
.burger span::before,.burger span::after{content:"";position:absolute;left:0;width:21px;height:2px;background:var(--navy);border-radius:2px;transition:.25s}
.burger span::before{top:-7px}.burger span::after{top:7px}
.burger.on span{background:transparent}
.burger.on span::before{top:0;transform:rotate(45deg)}
.burger.on span::after{top:0;transform:rotate(-45deg)}

/* ---------- hero ---------- */
.hero{position:relative;min-height:min(88vh,760px);display:flex;align-items:center;background:var(--navy-900);overflow:hidden;isolation:isolate}
.hero-bg{position:absolute;inset:0;z-index:-2}
.hero-bg img{width:100%;height:100%;object-fit:cover;object-position:center 42%}
.hero::after{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(100deg,rgba(0,21,47,.94) 0%,rgba(0,36,84,.85) 42%,rgba(0,36,84,.42) 72%,rgba(0,36,84,.28) 100%)}
.hero-in{padding:clamp(60px,9vw,110px) 0;max-width:830px;color:#fff}
.hero .eyebrow{color:var(--gold-light)}
.hero h1{color:#fff;font-size:clamp(1.95rem,4.7vw,3.5rem);text-shadow:0 2px 24px rgba(0,0,0,.3);margin-bottom:.42em;text-transform:uppercase;letter-spacing:.005em}
.hero-lead{font-size:clamp(1rem,1.6vw,1.16rem);color:#DCE5F1;max-width:660px;margin-bottom:2rem}
.hero-logo{height:84px;width:auto;margin-bottom:24px;padding:11px 20px;background:rgba(255,255,255,.94);border-radius:16px;box-shadow:0 10px 30px rgba(0,0,0,.28);box-sizing:content-box}
.hero-marks{display:flex;flex-wrap:wrap;gap:12px 30px;margin-top:2.4rem;padding-top:1.6rem;border-top:1px solid rgba(255,255,255,.16)}
.hero-marks span{display:inline-flex;align-items:center;gap:9px;font-size:.88rem;color:#C6D3E5;font-weight:500}
.hero-marks svg{width:17px;height:17px;color:var(--gold-light);flex:none}

/* ---------- page hero (trang con) ---------- */
.phero{position:relative;background:var(--navy);color:#fff;padding:clamp(46px,6vw,86px) 0;overflow:hidden;isolation:isolate}
.phero-bg{position:absolute;inset:0;z-index:-2;opacity:.3}
.phero-bg img{width:100%;height:100%;object-fit:cover}
.phero::after{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(90deg,var(--navy-900) 8%,rgba(0,36,84,.86) 62%,rgba(0,36,84,.6))}
.phero h1{color:#fff;margin-bottom:.35em}
.phero p{color:#C4D2E5;max-width:640px;margin-bottom:0}
.crumb{font-size:.83rem;color:#93A8C4;margin-bottom:16px}
.crumb a{color:#C7D6E9}
.crumb a:hover{color:var(--gold-light)}
.crumb span{margin:0 7px;opacity:.55}

/* ---------- cards ---------- */
.card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;transition:all .3s var(--ease);display:flex;flex-direction:column;height:100%}
.card:hover{transform:translateY(-5px);box-shadow:var(--sh);border-color:var(--gold-light)}
.card-img{position:relative;aspect-ratio:4/5;overflow:hidden;background:var(--cream-2)}
.card-img img{width:100%;height:100%;object-fit:cover;object-position:center top;transition:transform .6s var(--ease)}
.card:hover .card-img img{transform:scale(1.05)}
.card-img.tall{aspect-ratio:3/4}
.card-body{padding:22px 24px 26px;flex:1;display:flex;flex-direction:column}
.card-body h3{font-size:1.12rem;font-family:var(--ff);font-weight:700;margin-bottom:.5em}
.card-body p{font-size:.93rem;color:var(--muted);margin-bottom:1em}
.card-body .more{margin-top:auto;font-weight:600;font-size:.9rem;color:var(--gold-dark);display:inline-flex;align-items:center;gap:6px}
.card-body .more::after{content:"→";transition:transform .25s}
.card:hover .more::after{transform:translateX(4px)}
.tag{display:inline-block;padding:4px 12px;border-radius:var(--r-pill);font-size:.73rem;font-weight:600;letter-spacing:.05em;text-transform:uppercase;background:var(--gold-soft);color:var(--gold-dark);margin-bottom:11px}
.tag-navy{background:#E7EDF6;color:var(--navy-700)}

/* thẻ ảnh trống — chờ bổ sung */
.img-todo{aspect-ratio:4/5;background:repeating-linear-gradient(45deg,var(--cream),var(--cream) 12px,var(--cream-2) 12px,var(--cream-2) 24px);display:grid;place-items:center;text-align:center;padding:20px;color:var(--muted);font-size:.84rem;border-bottom:1px solid var(--line)}
.img-todo b{display:block;color:var(--navy);font-size:.9rem;margin-bottom:4px}
.card-img.tall .img-todo{aspect-ratio:3/4}

/* ---------- feature list ---------- */
.feat{display:flex;gap:16px;align-items:flex-start}
.feat-ic{flex:none;width:50px;height:50px;border-radius:14px;display:grid;place-items:center;background:linear-gradient(140deg,var(--navy),var(--navy-700));color:var(--gold-light)}
.feat-ic svg{width:23px;height:23px}
.feat h4{margin-bottom:.3em;color:var(--navy)}
.feat p{font-size:.92rem;color:var(--muted);margin:0}
.sec-navy .feat-ic{background:rgba(255,255,255,.09);border:1px solid rgba(201,162,90,.35)}
.sec-navy .feat p{color:#AFBED2}

/* ---------- quy trình ---------- */
.steps{counter-reset:s;display:grid;gap:18px}
.steps.grid{display:grid}
.step{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:26px 26px 26px 92px;transition:.3s var(--ease)}
.step::before{counter-increment:s;content:counter(s,decimal-leading-zero);position:absolute;left:26px;top:24px;width:46px;height:46px;border-radius:50%;display:grid;place-items:center;background:linear-gradient(140deg,var(--navy),var(--navy-700));color:var(--gold-light);font-weight:700;font-size:.95rem;font-family:var(--ff)}
.step:hover{border-color:var(--gold);box-shadow:var(--sh-sm);transform:translateX(4px)}
.step h4{margin-bottom:.3em}
.step p{margin:0;font-size:.93rem;color:var(--muted)}
.step-time{display:inline-block;margin-top:9px;font-size:.79rem;font-weight:600;color:var(--gold-dark);background:var(--gold-soft);padding:3px 11px;border-radius:var(--r-pill)}

/* ---------- bảng / thông số ---------- */
.tbl-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;border:1px solid var(--line);border-radius:var(--r);background:#fff}
table.tbl{width:100%;border-collapse:collapse;font-size:.93rem;min-width:520px}
table.tbl th,table.tbl td{padding:13px 16px;text-align:left;border-bottom:1px solid var(--line-2)}
table.tbl th{background:var(--cream);color:var(--navy);font-weight:700;white-space:nowrap}
table.tbl tr:last-child td{border-bottom:0}
.pending{color:var(--muted);font-style:italic}

/* ---------- form ---------- */
.form{display:grid;gap:17px}
.form-row{display:grid;gap:17px;grid-template-columns:repeat(2,1fr)}
.field label{display:block;font-size:.87rem;font-weight:600;color:var(--navy);margin-bottom:6px}
.field label .req{color:var(--err)}
.field input,.field select,.field textarea{width:100%;padding:12.5px 15px;border:1.5px solid var(--line);border-radius:var(--r-sm);font-family:inherit;font-size:.95rem;color:var(--ink);background:#fff;transition:.2s}
.field textarea{min-height:118px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--gold);outline:none;box-shadow:0 0 0 3px rgba(201,162,90,.16)}
.field .hint{font-size:.78rem;color:var(--muted);margin-top:5px}
.field.err input,.field.err select,.field.err textarea{border-color:var(--err)}
.err-msg{display:none;color:var(--err);font-size:.8rem;margin-top:5px;font-weight:500}
.field.err .err-msg{display:block}
.check{display:flex;gap:11px;align-items:flex-start;font-size:.88rem;color:var(--body)}
.check input{width:19px;height:19px;flex:none;margin-top:2px;accent-color:var(--gold-dark)}
.form-note{font-size:.82rem;color:var(--muted)}
.form-msg{display:none;padding:16px 18px;border-radius:var(--r-sm);font-size:.93rem;font-weight:500}
.form-msg.ok{display:block;background:#E9F6EF;color:var(--ok);border:1px solid #BEE3D0}
.form-msg.bad{display:block;background:#FDECEA;color:var(--err);border:1px solid #F5C6C0}
.form-box{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:clamp(24px,3.6vw,40px);box-shadow:var(--sh-sm)}
.chip-group{display:flex;flex-wrap:wrap;gap:9px}
.chip{display:inline-flex;align-items:center;gap:7px;padding:8px 15px;border:1.5px solid var(--line);border-radius:var(--r-pill);font-size:.86rem;cursor:pointer;transition:.2s;background:#fff}
.chip input{position:absolute;opacity:0;pointer-events:none}
.chip:has(input:checked){border-color:var(--gold);background:var(--gold-soft);color:var(--gold-dark);font-weight:600}

/* ---------- FAQ ---------- */
.faq{border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{cursor:pointer;padding:19px 44px 19px 0;font-weight:600;color:var(--navy);position:relative;list-style:none;font-size:1rem}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:6px;top:50%;transform:translateY(-50%);font-size:1.5rem;color:var(--gold-dark);font-weight:400;transition:.25s}
.faq details[open] summary::after{content:"–"}
.faq details[open] summary{color:var(--gold-dark)}
.faq .ans{padding:0 44px 20px 0;color:var(--muted);font-size:.95rem}
.faq .ans p:last-child{margin-bottom:0}

/* ---------- bộ lọc ---------- */
.filters{display:flex;flex-wrap:wrap;gap:9px;margin-bottom:30px}
.filt{padding:9px 19px;border:1.5px solid var(--line);background:#fff;border-radius:var(--r-pill);font-size:.88rem;font-weight:600;color:var(--body);cursor:pointer;transition:.2s}
.filt:hover{border-color:var(--gold)}
.filt.on{background:var(--navy);border-color:var(--navy);color:#fff}
.search-box{position:relative;margin-bottom:20px;max-width:420px}
.search-box input{width:100%;padding:12.5px 15px 12.5px 44px;border:1.5px solid var(--line);border-radius:var(--r-pill);font-family:inherit;font-size:.95rem}
.search-box svg{position:absolute;left:16px;top:50%;transform:translateY(-50%);width:18px;height:18px;color:var(--muted)}

/* ---------- gallery ---------- */
.gal{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:14px}
.gal figure{margin:0;border-radius:var(--r);overflow:hidden;position:relative;aspect-ratio:1;cursor:pointer;background:var(--cream-2)}
.gal img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
.gal figure:hover img{transform:scale(1.07)}
.gal figcaption{position:absolute;left:0;right:0;bottom:0;padding:26px 14px 12px;background:linear-gradient(transparent,rgba(0,21,47,.88));color:#fff;font-size:.82rem;font-weight:500}
.lightbox{position:fixed;inset:0;background:rgba(0,10,25,.94);z-index:200;display:none;place-items:center;padding:24px}
.lightbox.on{display:grid}
.lightbox img{max-width:min(1100px,94vw);max-height:88vh;object-fit:contain;border-radius:var(--r)}
.lightbox .x{position:absolute;top:20px;right:24px;width:44px;height:44px;border-radius:50%;background:rgba(255,255,255,.14);color:#fff;border:0;font-size:1.5rem;cursor:pointer}

/* ---------- CTA band ---------- */
.cta-band{background:linear-gradient(120deg,var(--navy-900),var(--navy) 55%,var(--navy-700));color:#fff;border-radius:var(--r-lg);padding:clamp(32px,5vw,60px);text-align:center;position:relative;overflow:hidden}
.cta-band::before{content:"";position:absolute;top:-40%;right:-8%;width:340px;height:340px;border-radius:50%;background:radial-gradient(circle,rgba(201,162,90,.28),transparent 68%)}
.cta-band h2{color:#fff;position:relative}
.cta-band p{color:#C7D5E8;max-width:660px;margin:0 auto 26px;position:relative}
.cta-band .btn-row{position:relative}

/* ---------- footer ---------- */
footer.site{background:var(--navy-900);color:#9FB2CB;padding-top:clamp(46px,6vw,74px);font-size:.92rem}
footer.site h4{color:#fff;font-family:var(--ff);font-size:.95rem;letter-spacing:.06em;text-transform:uppercase;margin-bottom:1.1em}
footer.site a{color:#B9C8DC}
footer.site a:hover{color:var(--gold-light)}
.f-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:44px}
.f-grid ul{list-style:none;padding:0;margin:0}
.f-grid ul li{margin-bottom:.6em}
.f-brand img{height:70px;width:auto;margin-bottom:18px;padding:10px 16px;background:#fff;border-radius:14px;box-sizing:content-box}
.f-slogan{font-family:var(--ff-d);font-style:italic;color:var(--gold-light);font-size:1.02rem;margin-bottom:14px}
.f-contact li{display:flex;gap:10px;align-items:flex-start;margin-bottom:.85em}
.f-contact svg{width:17px;height:17px;color:var(--gold);flex:none;margin-top:4px}
.f-social{display:flex;gap:10px;margin-top:16px}
.f-social a{width:38px;height:38px;border-radius:50%;display:grid;place-items:center;background:rgba(255,255,255,.08);transition:.25s}
.f-social a:hover{background:var(--gold);color:var(--navy-900);transform:translateY(-2px)}
.f-social svg{width:17px;height:17px}
.f-map{border-radius:var(--r);overflow:hidden;border:1px solid rgba(255,255,255,.12);height:180px}
.f-map iframe{width:100%;height:100%;border:0;filter:grayscale(.25)}
.f-bottom{border-top:1px solid rgba(255,255,255,.1);padding:20px 0;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:.85rem;color:#8496AF}
.f-bottom nav{display:flex;gap:18px;flex-wrap:wrap}

/* ---------- nút nổi mobile ---------- */
.dock{position:fixed;left:0;right:0;bottom:0;z-index:90;display:none;background:#fff;border-top:1px solid var(--line);box-shadow:0 -6px 22px rgba(0,36,84,.13);padding:8px 10px calc(8px + env(safe-area-inset-bottom))}
.dock-in{display:grid;grid-template-columns:repeat(4,1fr);gap:7px}
.dock a{display:flex;flex-direction:column;align-items:center;gap:3px;padding:7px 3px;border-radius:11px;font-size:.68rem;font-weight:600;color:var(--navy);line-height:1.25;text-align:center}
.dock a svg{width:20px;height:20px}
.dock a.hot{background:linear-gradient(135deg,var(--gold-dark),var(--gold));color:#2A1D06}
.float-side{position:fixed;right:16px;bottom:20px;z-index:88;display:flex;flex-direction:column;gap:11px}
.float-side a{width:52px;height:52px;border-radius:50%;display:grid;place-items:center;box-shadow:var(--sh);color:#fff;transition:.25s;position:relative}
.float-side a:hover{transform:scale(1.08);color:#fff}
.float-side .f-call{background:#0F9D58}
.float-side .f-zalo{background:#0068FF}
.float-side .f-mess{background:#0084FF}
.float-side svg{width:25px;height:25px}
.float-side .pulse::after{content:"";position:absolute;inset:0;border-radius:50%;border:2px solid currentColor;animation:pulse 1.9s infinite;opacity:.65}
@keyframes pulse{0%{transform:scale(1);opacity:.6}100%{transform:scale(1.55);opacity:0}}

/* ---------- chat widget ---------- */
.chatw{position:fixed;right:16px;bottom:96px;z-index:95;width:min(340px,calc(100vw - 32px));background:#fff;border-radius:var(--r-lg);box-shadow:var(--sh-lg);border:1px solid var(--line);display:none;overflow:hidden}
.chatw.on{display:block;animation:pop .28s var(--ease)}
@keyframes pop{from{opacity:0;transform:translateY(14px) scale(.97)}to{opacity:1;transform:none}}
.chatw-hd{background:linear-gradient(120deg,var(--navy),var(--navy-700));color:#fff;padding:15px 18px;display:flex;justify-content:space-between;align-items:center}
.chatw-hd b{font-size:.97rem}
.chatw-hd small{display:block;font-size:.75rem;color:#B8CAE2}
.chatw-hd button{background:none;border:0;color:#fff;font-size:1.35rem;cursor:pointer;line-height:1}
.chatw-bd{padding:16px 18px;max-height:300px;overflow-y:auto}
.chat-msg{background:var(--cream);border-radius:12px 12px 12px 3px;padding:11px 14px;font-size:.88rem;margin-bottom:11px;color:var(--body)}
.chat-quick{display:flex;flex-wrap:wrap;gap:7px;margin-top:8px}
.chat-quick button{padding:7px 13px;border:1px solid var(--line);background:#fff;border-radius:var(--r-pill);font-size:.79rem;cursor:pointer;color:var(--navy);transition:.2s}
.chat-quick button:hover{border-color:var(--gold);background:var(--gold-soft)}
.chatw-ft{padding:12px 18px 18px;border-top:1px solid var(--line-2)}

/* ---------- cookie ---------- */
.cookie{position:fixed;left:16px;bottom:16px;z-index:99;max-width:390px;background:#fff;border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--sh-lg);padding:18px 20px;display:none}
.cookie.on{display:block}
.cookie p{font-size:.85rem;margin-bottom:12px;color:var(--muted)}
.cookie .btn-row{gap:9px}

/* ---------- tiện ích ---------- */
.badge-note{display:inline-flex;align-items:center;gap:8px;padding:9px 16px;border-radius:var(--r-sm);background:var(--gold-soft);border:1px solid var(--gold-light);color:var(--gold-dark);font-size:.85rem;font-weight:600}
.note-box{background:var(--cream);border-left:3px solid var(--gold);border-radius:0 var(--r-sm) var(--r-sm) 0;padding:18px 22px;font-size:.92rem;color:var(--body)}
.note-box p:last-child{margin-bottom:0}
.reveal{transition:opacity .7s var(--ease),transform .7s var(--ease)}
html.js-on .reveal{opacity:0;transform:translateY(24px)}
html.js-on .reveal.in{opacity:1;transform:none}
.split{display:grid;grid-template-columns:1fr 1fr;gap:clamp(28px,4.5vw,60px);align-items:center}
.split img{border-radius:var(--r-lg);box-shadow:var(--sh)}
.step-row{margin-bottom:clamp(40px,5vw,64px)}
.split.swap{direction:rtl}
.split.swap>*{direction:ltr}
.split-img-stack{position:relative}
.split-img-stack .s2{position:absolute;right:-6%;bottom:-11%;width:47%;border:6px solid #fff;box-shadow:var(--sh-lg)}
.stat{text-align:center;padding:22px 14px;background:#fff;border:1px solid var(--line);border-radius:var(--r)}
.stat b{display:block;font-family:var(--ff-d);font-size:1.9rem;color:var(--navy);line-height:1.1}
.stat span{font-size:.83rem;color:var(--muted)}
.pill-list{list-style:none;padding:0;display:flex;flex-wrap:wrap;gap:9px}
.pill-list li{margin:0;padding:7px 15px;background:#fff;border:1px solid var(--line);border-radius:var(--r-pill);font-size:.87rem;color:var(--body)}
.sec-navy .pill-list li{background:rgba(255,255,255,.07);border-color:rgba(255,255,255,.16);color:#CBD8E8}
.tick{list-style:none;padding:0}
.tick li{position:relative;padding-left:30px;margin-bottom:.6em;font-size:.95rem}
.tick li::before{content:"";position:absolute;left:0;top:.45em;width:17px;height:17px;border-radius:50%;background:var(--gold-soft);border:1.5px solid var(--gold)}
.tick li::after{content:"";position:absolute;left:5.6px;top:.72em;width:5px;height:8.5px;border-right:2px solid var(--gold-dark);border-bottom:2px solid var(--gold-dark);transform:rotate(42deg)}
.sec-navy .tick li::before{background:rgba(201,162,90,.2)}
.sec-navy .tick li::after{border-color:var(--gold-light)}
.anchor-nav{position:sticky;top:var(--nav-h);z-index:60;background:#fff;border-bottom:1px solid var(--line);padding:11px 0;overflow-x:auto;-webkit-overflow-scrolling:touch}
.anchor-nav ul{display:flex;gap:6px;list-style:none;margin:0;padding:0;white-space:nowrap}
.anchor-nav a{padding:8px 15px;border-radius:var(--r-pill);font-size:.87rem;font-weight:600;color:var(--body);display:block}
.anchor-nav a:hover,.anchor-nav a.on{background:var(--navy);color:#fff}
.only-mobile{display:none}
.hide{display:none !important}
.mt0{margin-top:0}.mb0{margin-bottom:0}

/* ---------- responsive ---------- */
@media(max-width:1080px){
  .g4{grid-template-columns:repeat(2,1fr)}
  .f-grid{grid-template-columns:1fr 1fr;gap:30px}
}
@media(max-width:960px){
  /* backdrop-filter tạo khung chứa mới cho position:fixed → tắt trên mobile để menu phủ toàn màn hình */
  header.site{backdrop-filter:none;-webkit-backdrop-filter:none;background:#fff}
  .menu{position:fixed;top:0;right:0;bottom:0;width:min(340px,86vw);background:#fff!important;flex-direction:column;align-items:stretch;padding:88px 18px 30px;gap:2px;box-shadow:var(--sh-lg);transform:translateX(102%);transition:transform .32s var(--ease);overflow-y:auto;z-index:95}
  .menu.on{transform:none}
  .menu>li>a{padding:13px 14px;font-size:1rem;border-bottom:1px solid var(--line-2);border-radius:0}
  .only-mobile{display:block}
  .menu .only-mobile>a{border-bottom:0}
  .menu-info{padding:16px 14px 0;font-size:.88rem;color:var(--muted);line-height:2}
  .menu-info svg{width:15px;height:15px;color:var(--gold-dark);vertical-align:-2px}
  .menu .has>a::after{float:right;margin-top:8px}
  .submenu{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;border:0;border-left:2px solid var(--gold-soft);border-radius:0;margin:4px 0 8px 14px;padding:0;display:none}
  .menu>li.open .submenu{display:block}
  .burger{display:grid}
  .nav-cta .btn{display:none}
  .split{grid-template-columns:1fr}
  .split-img-stack .s2{display:none}
  .dock{display:block}
  body{padding-bottom:74px}
  .float-side{bottom:88px;right:12px}
  .float-side a{width:47px;height:47px}
  .float-side svg{width:22px;height:22px}
  .chatw{bottom:150px}
  .g3{grid-template-columns:repeat(2,1fr)}
  body.menu-open .dock,body.menu-open .float-side,body.menu-open .chatw,body.menu-open .cookie{display:none!important}
  .menu-scrim{position:fixed;inset:0;background:rgba(0,21,47,.5);z-index:70;opacity:0;visibility:hidden;transition:.3s}
  .menu-scrim.on{opacity:1;visibility:visible}
}
@media(max-width:720px){
  body{font-size:16px}
  .wrap,.wrap-narrow{width:calc(100% - 32px)}
  .g2,.g3,.g4{grid-template-columns:1fr}
  .form-row{grid-template-columns:1fr}
  .f-grid{grid-template-columns:1fr;gap:30px}
  .topbar-items span:not(.keep){display:none}
  .hero{min-height:auto}
  .hero-logo{height:56px;padding:9px 15px}
  .step{padding:22px 20px 22px 20px}
  .step::before{position:static;margin-bottom:12px}
  .gal{grid-template-columns:repeat(2,1fr);gap:10px}
  .cookie{left:12px;right:12px;max-width:none;bottom:82px}
  .brand img{height:44px}
  .brand-txt b{font-size:1rem}
  .f-bottom{justify-content:center;text-align:center}
}
@media(max-width:420px){
  .gal{grid-template-columns:1fr}
  .btn{width:100%}
  .btn-row{flex-direction:column}
}
@media print{header.site,footer.site,.dock,.float-side,.chatw,.cookie,.topbar{display:none!important}}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}.reveal{opacity:1;transform:none}}