/* Web giới thiệu sản phẩm — CSS tự viết, không thư viện. Token màu theo Doc/NGUYEN-TAC-THIET-KE-VA-PHOI-MAU.md §2. */
@font-face{font-family:'Be Vietnam Pro';font-style:normal;font-weight:400;font-display:swap;src:url(../fonts/bevietnampro-400-vietnamese.woff2) format('woff2');unicode-range:U+0102-0103,U+0110-0111,U+0128-0129,U+0168-0169,U+01A0-01A1,U+01AF-01B0,U+0300-0301,U+0303-0304,U+0308-0309,U+0323,U+0329,U+1EA0-1EF9,U+20AB}
@font-face{font-family:'Be Vietnam Pro';font-style:normal;font-weight:400;font-display:swap;src:url(../fonts/bevietnampro-400-latin.woff2) format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:'Be Vietnam Pro';font-style:normal;font-weight:600;font-display:swap;src:url(../fonts/bevietnampro-600-vietnamese.woff2) format('woff2');unicode-range:U+0102-0103,U+0110-0111,U+0128-0129,U+0168-0169,U+01A0-01A1,U+01AF-01B0,U+0300-0301,U+0303-0304,U+0308-0309,U+0323,U+0329,U+1EA0-1EF9,U+20AB}
@font-face{font-family:'Be Vietnam Pro';font-style:normal;font-weight:600;font-display:swap;src:url(../fonts/bevietnampro-600-latin.woff2) format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:'Be Vietnam Pro';font-style:normal;font-weight:700;font-display:swap;src:url(../fonts/bevietnampro-700-vietnamese.woff2) format('woff2');unicode-range:U+0102-0103,U+0110-0111,U+0128-0129,U+0168-0169,U+01A0-01A1,U+01AF-01B0,U+0300-0301,U+0303-0304,U+0308-0309,U+0323,U+0329,U+1EA0-1EF9,U+20AB}
@font-face{font-family:'Be Vietnam Pro';font-style:normal;font-weight:700;font-display:swap;src:url(../fonts/bevietnampro-700-latin.woff2) format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}

:root{
  --brand:#0B3B8C;--brand-ink:#071a3d;--brand-soft:#e8eefb;
  --accent:#F59E0B;--accent-ink:#111827;
  --bg:#ffffff;--surface:#f6f8fc;--text:#1f2937;--muted:#4b5563;--border:#dbe2ee;
  --on-dark:#ffffff;--muted-on-dark:#cbd5e1;
  --ok-bg:#dcfce7;--ok-ink:#14532d;--soon-bg:#e0e7ff;--soon-ink:#1e3a8a;--sale-bg:#fee2e2;--sale-ink:#991b1b;
  --radius:16px;--shadow:0 10px 30px rgba(7,26,61,.12);
  --font:'Be Vietnam Pro',system-ui,'Segoe UI',Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;font-family:var(--font);font-size:17px;line-height:1.6;color:var(--text);background:var(--bg)}
img,svg{max-width:100%;height:auto}
img{display:block}
a{color:var(--brand)}
a:hover{color:#072a66}
h1,h2,h3,h4{line-height:1.25;color:var(--brand-ink);margin:0 0 .5em}
h1{font-size:clamp(28px,4.2vw,50px);font-weight:700}
h2{font-size:clamp(24px,3vw,36px);font-weight:700}
h3{font-size:20px;font-weight:600}
p{margin:0 0 1em}
:focus-visible{outline:3px solid var(--brand);outline-offset:2px}
.on-dark :focus-visible,.hero :focus-visible,.dark :focus-visible,.site-footer :focus-visible{outline-color:#fbbf24}
.skip{position:absolute;left:-9999px;top:0;background:#fff;color:#000;padding:8px 14px;z-index:100}
.skip:focus{left:8px;top:8px}
.container{max-width:1200px;margin:0 auto;padding:0 20px}
.vh{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.muted{color:var(--muted)}
section{position:relative}
.section{padding:96px 0}
.section.alt{background:var(--surface)}
.section-head{max-width:760px;margin:0 0 40px}
.section-head p{color:var(--muted);font-size:18px}
.eyebrow{display:inline-block;font-size:14px;font-weight:600;letter-spacing:.04em;text-transform:uppercase;color:var(--brand);margin-bottom:8px}

/* ---- header ---- */
.site-header{position:sticky;top:0;z-index:50;background:#fff;border-bottom:1px solid var(--border)}
.header-in{display:flex;align-items:center;gap:12px;padding:8px 16px;max-width:1600px;margin:0 auto}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--brand-ink);line-height:1.2;flex:none}
.brand-logo{height:34px;width:auto;flex:none}
.brand-text{display:block;border-left:1px solid var(--border);padding-left:10px}
.foot-logo{height:48px;width:auto;margin-bottom:10px}
.brand strong{display:block;font-size:15px;font-weight:700;color:var(--brand)}
.brand span{display:block;font-size:13px;color:var(--muted)}
.brand .b-short{display:none}
.nav{display:flex;align-items:center;gap:0;margin-left:auto}
.nav a{display:inline-flex;align-items:center;gap:6px;padding:10px 7px;border-radius:10px;font-size:14px;font-weight:600;color:var(--brand-ink);text-decoration:none;white-space:nowrap;min-height:44px}
.nav a:hover,.nav a[aria-current="page"]{background:var(--brand-soft);color:var(--brand)}
.badge-moi,.badge-kd{display:inline-block;background:var(--accent);color:var(--accent-ink);font-size:12px;font-weight:700;line-height:1;padding:4px 7px;border-radius:999px}
.header-cta{flex:none;padding:9px 14px}
.menu-btn{display:none;margin-left:auto;background:#fff;border:1px solid var(--border);border-radius:10px;min-width:44px;min-height:44px;padding:0;cursor:pointer;color:var(--brand-ink)}
.menu-btn svg{width:24px;height:24px;margin:auto}

/* ---- buttons ---- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:11px 20px;border-radius:12px;border:2px solid transparent;font:600 16px/1.2 var(--font);text-decoration:none;cursor:pointer;transition:transform .15s,box-shadow .15s,background .15s}
.btn:hover{transform:translateY(-2px)}
.btn-primary{background:var(--accent);color:var(--accent-ink)}
.btn-primary:hover{background:#fbbf24;color:var(--accent-ink);box-shadow:0 8px 20px rgba(245,158,11,.35)}
.btn-brand{background:var(--brand);color:#fff}
.btn-brand:hover{background:#072a66;color:#fff}
.btn-outline{background:transparent;border-color:var(--brand);color:var(--brand)}
.btn-outline:hover{background:var(--brand-soft);color:var(--brand)}
.dark .btn-outline,.hero .btn-outline{border-color:#fff;color:#fff}
.dark .btn-outline:hover,.hero .btn-outline:hover{background:rgba(255,255,255,.12);color:#fff}
.btn-sm{min-height:44px;padding:9px 16px;font-size:15px}
.btn-block{width:100%}
.icon{width:20px;height:20px;flex:none;stroke:currentColor;fill:none;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round}

/* ---- hero ---- */
.hero{background:linear-gradient(135deg,#071a3d 0%,#0B3B8C 100%);color:var(--on-dark);padding:18px 0 22px;overflow:hidden}
.hero .container{max-width:1300px}
.hero h1{color:#fff;font-size:clamp(28px,2.7vw,38px);margin-bottom:8px}
.hero-top{display:grid;grid-template-columns:1.3fr .7fr;gap:24px;align-items:center}
.hero-sub{font-size:16px;color:var(--muted-on-dark);margin:0 0 10px;max-width:700px}
.chooser{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.chooser-label{font-weight:600;margin-right:4px}
.chooser a{background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.4);color:#fff;text-decoration:none;font-size:15px;font-weight:600;padding:9px 14px;border-radius:999px;min-height:44px;display:inline-flex;align-items:center}
.chooser a:hover{background:#fff;color:var(--brand-ink)}
.shots{position:relative;height:210px}
.frame-browser{position:absolute;left:0;top:6px;width:78%;background:#fff;border-radius:12px;box-shadow:var(--shadow);transform:rotate(-2deg);overflow:hidden}
.frame-bar{display:flex;align-items:center;gap:6px;height:22px;background:#e5e9f2;padding:0 10px}
.frame-bar i{width:8px;height:8px;border-radius:50%;background:#94a3b8;display:block}
.frame-bar b{flex:1;height:12px;border-radius:6px;background:#fff;margin-left:8px}
.frame-browser img{width:100%;aspect-ratio:1366/768;object-fit:cover;object-position:top}
.frame-phone{position:absolute;right:2%;top:0;width:24%;background:#0f172a;border-radius:20px;padding:6px 5px;box-shadow:var(--shadow);transform:rotate(3deg)}
.frame-phone img{width:100%;aspect-ratio:375/812;object-fit:cover;object-position:top;border-radius:14px}
.frame-card{position:absolute;right:12%;bottom:0;width:36%;background:#fff;border-radius:10px;padding:4px;box-shadow:var(--shadow);transform:rotate(-3deg)}
.frame-card img{border-radius:7px;width:100%;aspect-ratio:1366/768;object-fit:cover;object-position:top}

/* ---- thang gói ---- */
.ladder{display:grid;grid-template-columns:repeat(5,1fr);gap:12px;margin-top:18px}
.plan-card{position:relative;display:flex;flex-direction:column;background:#fff;color:var(--text);border:1px solid var(--border);border-radius:var(--radius);padding:14px 14px 13px;box-shadow:0 4px 14px rgba(7,26,61,.1)}
.plan-card h3{font-size:17px;margin:0 0 3px;color:var(--brand-ink)}
.plan-card .for{font-size:13.5px;color:var(--muted);margin:0 0 6px;line-height:1.35}
.plan-card ul{margin:0 0 8px;padding:0;list-style:none;font-size:13.5px;line-height:1.35}
.plan-card li{display:flex;gap:5px;margin-bottom:3px}
.plan-card li svg{width:16px;height:16px;margin-top:2px;color:var(--brand)}
.plan-card.rec{border:2px solid var(--accent);box-shadow:0 10px 26px rgba(245,158,11,.3)}
.plan-tag{position:absolute;top:-12px;left:14px}
.price{margin:auto 0 8px}
.price del{display:block;font-size:14px;color:var(--muted)}
.price strong{display:block;font-size:24px;line-height:1.15;color:var(--brand-ink);font-weight:700}
.price .big{font-size:19px}
.price .rng{font-size:17px}
.price .giam,.giam{display:inline-block;background:var(--sale-bg);color:var(--sale-ink);font-size:13px;font-weight:700;padding:2px 8px;border-radius:999px}
.price small{display:block;font-size:13px;color:var(--muted)}
.hint-scroll{display:none;color:var(--muted-on-dark);font-size:14px;margin:8px 0 0}

/* ---- stats ---- */
.stats{background:var(--surface);border-bottom:1px solid var(--border)}
.stats-in{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;padding:28px 20px;max-width:1200px;margin:0 auto;text-align:center}
.stat b{display:block;font-size:34px;line-height:1.1;color:var(--brand);font-weight:700}
.stat span{color:var(--muted);font-size:16px}

/* ---- khối dòng ---- */
.line-block{padding:72px 0}
.line-block:nth-of-type(even){background:var(--surface)}
.line-block.dark{background:linear-gradient(135deg,#071a3d 0%,#0B3B8C 100%);color:var(--on-dark)}
.line-block.dark h2,.line-block.dark h3{color:#fff}
.line-block.dark p,.line-block.dark li{color:var(--muted-on-dark)}
.line-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.line-block.flip .line-media{order:2}
.line-media{position:relative}
.line-media .shots{height:340px}
.line-media .frame-browser{width:84%;top:0}
.line-media .frame-phone{width:22%;right:0}
.line-media .frame-card{right:8%;width:32%}
.line-media.flip-m .frame-browser{left:auto;right:0;transform:rotate(2deg)}
.line-media.flip-m .frame-phone{right:auto;left:0}
.tick{list-style:none;margin:0 0 20px;padding:0}
.tick li{display:flex;gap:10px;margin-bottom:8px}
.tick svg{width:20px;height:20px;margin-top:3px;color:var(--brand);flex:none}
.dark .tick svg{color:#fbbf24}
.line-meta{display:flex;flex-wrap:wrap;gap:10px 18px;align-items:center;margin:0 0 18px;font-weight:600}
.line-meta .from{font-size:20px;color:var(--brand-ink)}
.dark .line-meta .from{color:#fff}
.line-actions{display:flex;flex-wrap:wrap;gap:12px}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.col-box{background:#fff;color:var(--text);border-radius:14px;padding:18px;border:1px solid var(--border)}
.dark .col-box{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.25);color:#fff}
.dark .col-box li{color:#e2e8f0}
.col-box h3{font-size:17px}
.col-box ul{margin:0;padding-left:0;list-style:none}
.col-box li{font-size:15px;margin-bottom:6px;display:flex;gap:8px;align-items:flex-start}

/* ---- thẻ chung ---- */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:22px;transition:transform .2s,box-shadow .2s}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.card h3{font-size:19px}
.card p{color:var(--muted);margin:0}
.card .icon{width:28px;height:28px;color:var(--brand);margin-bottom:10px}
.steps{counter-reset:s;display:grid;grid-template-columns:repeat(5,1fr);gap:16px;list-style:none;padding:0;margin:0}
.steps li{counter-increment:s;background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:20px 16px}
.steps li::before{content:counter(s);display:flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:50%;background:var(--brand);color:#fff;font-weight:700;margin-bottom:10px}
.steps b{display:block;margin-bottom:6px;color:var(--brand-ink)}
.steps span{font-size:15px;color:var(--muted)}
details{background:#fff;border:1px solid var(--border);border-radius:12px;margin-bottom:10px}
summary{cursor:pointer;padding:16px 18px;font-weight:600;color:var(--brand-ink);min-height:44px}
details p{padding:0 18px;color:var(--muted)}
details[open] summary{color:var(--brand)}

/* ---- lưới sản phẩm ---- */
.filters{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 24px}
.js-only{display:none}
.js .js-only{display:flex}
.chip{border:1px solid var(--border);background:#fff;color:var(--brand-ink);font:600 15px/1 var(--font);padding:12px 16px;border-radius:999px;cursor:pointer;min-height:44px}
.chip[aria-pressed="true"]{background:var(--brand);border-color:var(--brand);color:#fff}
.grid-sp{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;list-style:none;margin:0;padding:0}
.sp-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;height:100%;transition:transform .2s,box-shadow .2s}
.sp-card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.sp-card[hidden]{display:none}
.sp-thumb{aspect-ratio:16/9;background:var(--surface);overflow:hidden}
.sp-thumb img{width:100%;height:100%;object-fit:cover;object-position:top}
.sp-body{padding:16px;display:flex;flex-direction:column;gap:8px;flex:1}
.sp-body h3{font-size:18px;margin:0}
.sp-body h3 a{color:var(--brand-ink);text-decoration:none}
.sp-body h3 a::after{content:"";position:absolute;inset:0}
.sp-card{position:relative}
.sp-body p{margin:0;color:var(--muted);font-size:15px}
.sp-price{margin-top:auto;font-weight:600;color:var(--brand-ink);font-size:15px}
.sp-links{position:relative;z-index:2;display:flex;flex-wrap:wrap;gap:8px;margin-top:6px}
.tag{display:inline-block;font-size:13px;font-weight:600;padding:3px 9px;border-radius:999px;background:var(--brand-soft);color:var(--brand)}
.badge-tt{display:inline-block;font-size:13px;font-weight:700;padding:2px 9px;border-radius:999px;line-height:1.5;white-space:nowrap}
.tt-ok{background:var(--ok-bg);color:var(--ok-ink)}
.tt-soon{background:var(--soon-bg);color:var(--soon-ink)}
.tabs{display:flex;gap:8px;margin:0 0 20px}

/* ---- bảng ---- */
.table-wrap{overflow-x:auto;border:1px solid var(--border);border-radius:var(--radius);background:#fff}
table.cmp{width:100%;border-collapse:separate;border-spacing:0;font-size:16px;min-width:720px}
table.cmp th,table.cmp td{padding:12px 14px;text-align:center;border-bottom:1px solid var(--border);vertical-align:middle}
table.cmp th:first-child,table.cmp td:first-child{text-align:left;font-weight:500}
table.cmp thead th{background:#fff;position:sticky;top:0;z-index:2;font-size:15px;color:var(--brand-ink)}
table.cmp tr.grp td{background:var(--surface);font-weight:700;color:var(--brand-ink);text-align:left}
table.cmp .rec{background:#fff8e6}
table.cmp svg{width:20px;height:20px}
.yes{color:#15803d}.no{color:#6b7280}
.mini-cmp{width:100%;border-collapse:collapse;margin:0 0 20px;font-size:16px}
.mini-cmp th,.mini-cmp td{border:1px solid var(--border);padding:10px 12px;text-align:left}
.mini-cmp th{background:var(--surface)}
.price-cards{display:grid;grid-template-columns:repeat(5,1fr);gap:14px;align-items:stretch}
.price-cards .plan-card{height:100%}

/* ---- trang sản phẩm ---- */
.breadcrumb{padding:14px 0;font-size:15px;color:var(--muted)}
.breadcrumb ol{display:flex;flex-wrap:wrap;gap:6px;list-style:none;margin:0;padding:0}
.breadcrumb li+li::before{content:"›";margin-right:6px;color:var(--muted)}
.breadcrumb a{color:var(--brand)}
.pdp{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;padding:8px 0 56px;align-items:start}
.pdp>*,.hero-top>*,.line-grid>*,.contact-grid>*{min-width:0}
.gallery{min-width:0}
.gallery-main{border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;background:var(--surface);cursor:zoom-in;display:block;width:100%;padding:0}
.gallery-main img{width:100%;height:auto}
.gallery-main.is-phone img{max-height:560px;width:auto;margin:0 auto}
.thumbs{display:flex;gap:8px;margin-top:10px;overflow-x:auto;padding-bottom:6px;list-style:none;padding-left:0}
.thumbs a,.thumbs button{display:block;width:84px;height:56px;border:2px solid var(--border);border-radius:8px;overflow:hidden;padding:0;background:#fff;cursor:pointer;flex:none}
.thumbs img{width:100%;height:100%;object-fit:cover;object-position:top}
.thumbs [aria-current="true"]{border-color:var(--brand)}
.cap{font-size:14px;color:var(--muted);margin-top:8px}
.pdp-info .tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:10px}
.pdp-info h1{font-size:clamp(26px,3vw,36px)}
.plan-switch{display:flex;flex-wrap:wrap;gap:8px;margin:14px 0}
.plan-btn{flex:1;min-width:92px;border:2px solid var(--border);background:#fff;border-radius:12px;padding:10px 12px;font:600 15px/1.2 var(--font);color:var(--brand-ink);cursor:pointer;min-height:44px}
.plan-btn[aria-checked="true"]{border-color:var(--brand);background:var(--brand-soft);color:var(--brand)}
.plan-panel{margin-bottom:16px}
.js .plan-panel[hidden],.js .plan-panel[data-nd]{display:none}
.plan-panel .price strong{font-size:34px}
.plan-panel h2.vh{margin:0}
.checklist{list-style:none;padding:0;margin:12px 0}
.checklist li{display:flex;gap:10px;margin-bottom:8px;font-size:16px}
.checklist svg{width:20px;height:20px;margin-top:3px;color:#15803d;flex:none}
.cta-row{display:flex;flex-wrap:wrap;gap:10px;margin:16px 0 12px}
.trust{font-size:15px;color:var(--muted);border-top:1px dashed var(--border);padding-top:12px;margin:0}
.article{max-width:820px}
.article h2{margin-top:40px}
.article h3{margin-top:24px}
.fig{margin:16px 0 24px}
.fig img{border:1px solid var(--border);border-radius:12px;width:100%}
.fig figcaption{font-size:14px;color:var(--muted);margin-top:6px}
.fig.minh-hoa img{background:#071a3d}
.notice{background:var(--soon-bg);color:var(--soon-ink);border-radius:12px;padding:12px 16px;margin:0 0 20px;font-size:16px}
.tinh-nang-list{list-style:none;padding:0;margin:0 0 20px}
.tinh-nang-list li{display:flex;gap:10px;align-items:flex-start;padding:10px 0;border-bottom:1px solid var(--border)}
.tinh-nang-list li span.t{flex:1}

/* ---- mua kèm quảng cáo ---- */
.addon-qc{display:flex;gap:20px;align-items:center;justify-content:space-between;flex-wrap:wrap;background:var(--brand-soft);border:1px solid var(--border);border-left:6px solid var(--brand);border-radius:var(--radius);padding:20px 24px;margin:28px 0}
.addon-qc h3{margin:0 0 4px}.addon-qc p{margin:0;max-width:640px}
@media (max-width:1599px){.header-cta{display:none}}
.goi-badge{display:inline-block;background:var(--accent);color:var(--accent-ink);font-size:1.15rem;font-weight:700;line-height:1.2;padding:8px 22px;border-radius:999px;margin:0 0 14px;box-shadow:0 4px 12px rgba(245,158,11,.3)}
.goi-badge.sm{font-size:.95rem;padding:4px 14px;margin:0 0 8px;align-self:flex-start}
/* ---- carousel ---- */
.carousel{position:relative;min-width:0}
.slides{position:relative;aspect-ratio:16/9;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;touch-action:pan-y}
.track{display:flex;height:100%;transition:transform .45s ease;will-change:transform}
.slide{position:relative;flex:0 0 100%;width:100%;height:100%;margin:0;display:flex;align-items:center;justify-content:center;overflow:hidden}
.slide img{width:100%;height:100%;object-fit:contain}
.slide figcaption{position:absolute;left:10px;bottom:10px;right:64px;background:rgba(7,26,61,.85);color:#fff;font-size:13px;line-height:1.3;padding:5px 10px;border-radius:8px;max-width:max-content}
.count{position:absolute;right:10px;bottom:10px;background:rgba(7,26,61,.85);color:#fff;font-size:13px;font-weight:600;padding:5px 10px;border-radius:8px;z-index:3}
html:not(.js) .slide:not(:first-child){display:none}
.car-btn{position:absolute;top:50%;transform:translateY(-50%);width:44px;height:44px;border-radius:50%;border:0;background:rgba(255,255,255,.92);color:var(--brand-ink);cursor:pointer;align-items:center;justify-content:center;box-shadow:0 2px 8px rgba(0,0,0,.25);z-index:3}
.car-btn.prev{left:8px}.car-btn.next{right:8px}
.icon.flip{transform:scaleX(-1)}
.dots{justify-content:center;gap:2px;margin-top:6px}
.dots button{width:44px;height:28px;padding:0;border:0;background:transparent;cursor:pointer;position:relative}
.dots button::after{content:"";position:absolute;left:50%;top:50%;width:10px;height:10px;margin:-5px 0 0 -5px;border-radius:50%;background:#94a3b8}
.dots button[aria-current="true"]::after{background:var(--brand);width:14px;height:14px;margin:-7px 0 0 -7px}
.carousel .thumbs{margin-top:6px}

/* ---- nhấn mạnh gói Pro ---- */
.pro-power{background:linear-gradient(180deg,#fff8e6,#fff)}
.power-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.power{background:#fff;border:2px solid var(--accent);border-radius:20px;padding:28px;box-shadow:var(--shadow)}
.power-ic{display:inline-flex;width:56px;height:56px;border-radius:14px;background:var(--brand);color:#fff;align-items:center;justify-content:center;margin-bottom:12px}
.power-ic .icon{width:30px;height:30px}
.power-t{font-size:clamp(22px,2.4vw,28px);color:var(--brand-ink)}
.power-img{border:1px solid var(--border);border-radius:12px;margin-top:12px;width:100%}
.power-img.phone{max-width:240px;margin-left:auto;margin-right:auto}
.pro-note{font-size:14px;color:var(--text);margin:0 0 10px;line-height:1.4}
@media (max-width:991px){.power-grid{grid-template-columns:1fr}}

/* ---- lightbox ---- */
dialog.lightbox{border:0;padding:0;background:transparent;max-width:96vw;max-height:96vh}
dialog.lightbox::backdrop{background:rgba(7,26,61,.85)}
dialog.lightbox img{max-width:96vw;max-height:88vh;width:auto;height:auto;border-radius:8px;background:#fff}
dialog.lightbox button{position:absolute;top:6px;right:6px;min-width:44px;min-height:44px;border-radius:50%;border:0;background:#fff;font-size:22px;cursor:pointer}
dialog.modal{border:0;border-radius:var(--radius);max-width:520px;width:92vw;padding:24px;box-shadow:var(--shadow)}
dialog.modal::backdrop{background:rgba(7,26,61,.6)}

/* ---- form ---- */
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{display:flex;flex-direction:column;gap:6px}
.field.full{grid-column:1/-1}
.field label{font-weight:600;color:var(--brand-ink)}
.field input,.field select,.field textarea{font:400 16px/1.4 var(--font);padding:12px 14px;border:1px solid #94a3b8;border-radius:10px;background:#fff;color:var(--text);min-height:46px}
.field .err{color:#b91c1c;font-size:15px;min-height:1.2em}
.field input[aria-invalid="true"],.field select[aria-invalid="true"]{border-color:#b91c1c}
.consent{display:flex;gap:10px;align-items:flex-start}
.consent input{width:22px;height:22px;margin-top:3px;flex:none}
.contact-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:40px}
.contact-list{list-style:none;padding:0;margin:0 0 20px}
.contact-list li{margin-bottom:12px}

/* ---- CTA & footer ---- */
.cta-band{background:linear-gradient(135deg,#071a3d,#0B3B8C);color:#fff;padding:64px 0;text-align:center}
.cta-band h2{color:#fff}
.cta-band p{color:var(--muted-on-dark);max-width:640px;margin:0 auto 22px}
.cta-band .line-actions{justify-content:center}
.site-footer{background:#071a3d;color:var(--muted-on-dark);padding:48px 0 90px;font-size:16px}
.site-footer .foot-h{color:#fff;font-size:16px;font-weight:700;margin:0 0 8px}
.site-footer a{color:#e2e8f0}
.foot-grid{display:grid;grid-template-columns:1.2fr 1fr 1fr 1fr;gap:28px}
.site-footer ul{list-style:none;padding:0;margin:0}
.site-footer li{margin-bottom:8px}
.foot-note{border-top:1px solid rgba(255,255,255,.2);margin-top:28px;padding-top:16px;font-size:14px}
.mobile-bar{display:none}

/* ---- hiện dần (chỉ khi JS chạy) ---- */
.js .reveal{opacity:0;transform:translateY(20px);transition:opacity .45s ease,transform .45s ease}
.js .reveal.in{opacity:1;transform:none}
.toast{position:fixed;left:50%;bottom:80px;transform:translateX(-50%);background:#071a3d;color:#fff;padding:12px 18px;border-radius:12px;z-index:80;max-width:92vw;box-shadow:var(--shadow)}

@media (max-width:1439px){
  .nav,.header-cta{display:none}
  .menu-btn{display:flex}
  .site-header.open .nav{display:flex;flex-direction:column;align-items:stretch;position:absolute;top:100%;left:0;right:0;background:#fff;border-bottom:1px solid var(--border);padding:8px 16px 16px;box-shadow:var(--shadow);margin:0}
  .site-header.open .nav a{padding:12px;font-size:17px}
  .header-in{position:relative}
}
@media (max-width:991px){
  .nganh-grid{grid-template-columns:repeat(3,1fr)}
  .steps4>*{flex-basis:calc((100% - 16px) / 2)}
  .section{padding:64px 0}
  .hero-top,.line-grid,.pdp,.contact-grid{grid-template-columns:1fr}
  .shots{height:240px;max-width:520px}
  .ladder{grid-template-columns:repeat(3,1fr)}
  .price-cards{grid-template-columns:repeat(3,1fr)}
  .cards,.grid-sp{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:1fr 1fr}
  .line-block.flip .line-media{order:0}
}
@media (max-width:767px){
  body{font-size:17px}
  .brand .b-long{display:none}
  .brand-logo{height:28px}
  .brand{gap:8px}
  .brand-text{padding-left:8px}
  .brand .b-short{font-size:14px}
  .brand-text span{font-size:12px}
  .brand .b-short{display:block;font-size:17px;font-weight:700;color:var(--brand)}
  .header-in{padding:8px 14px}
  .container{padding:0 16px}
  .section{padding:56px 0}
  .line-block{padding:48px 0}
  .hero{padding:22px 0 28px}
  .hero .shots{display:none}
  .ladder{display:grid;grid-template-columns:1fr;gap:14px;margin:14px 0 0;padding:14px 0 0}
  .ladder .plan-card .for{display:none}
  .hint-scroll{display:none}
  .stats-in{grid-template-columns:repeat(2,1fr)}
  .cards,.grid-sp,.two-col,.price-cards,.form-grid,.steps{grid-template-columns:1fr}
  .line-media .shots{height:auto}
  .line-media .frame-phone,.line-media .frame-card{display:none}
  .line-media .frame-browser{position:relative;width:100%;transform:none}
  .foot-grid{grid-template-columns:1fr}
  .mobile-bar{display:flex;position:fixed;left:0;right:0;bottom:0;z-index:60;background:#fff;border-top:1px solid var(--border);box-shadow:0 -4px 16px rgba(7,26,61,.15)}
  .mobile-bar a{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;min-height:56px;font-size:14px;font-weight:600;text-decoration:none;color:var(--brand-ink)}
  .mobile-bar a+a{border-left:1px solid var(--border)}
  .mobile-bar a.m-quote{background:var(--accent);color:var(--accent-ink)}
  .gallery-main.is-phone img{max-height:440px}
  table.cmp{min-width:0}
  table.cmp thead{display:none}
  table.cmp,table.cmp tbody,table.cmp tr,table.cmp td{display:block;width:100%}
  table.cmp tr{border-bottom:2px solid var(--border);padding:8px 0}
  table.cmp td{border:0;text-align:left!important;padding:4px 14px;display:flex;justify-content:space-between;gap:10px}
  table.cmp td::before{content:attr(data-g);font-weight:600;color:var(--brand-ink)}
  table.cmp td:first-child::before{content:none}
  table.cmp tr.grp td{display:block}
}
/* ===== v2: theo Doc/QUY-CHUAN-THIET-KE-GIAO-DIEN.md (đợt sửa sau rà soát thiết kế) ===== */
.container{max-width:1200px;padding:0 24px}
.hero .container{max-width:1200px}
.section{padding:80px 0}
.line-block{padding:80px 0}
.section-head{margin-bottom:32px}
.section-head p{max-width:68ch}
h1,h2{text-wrap:balance}
.eyebrow{font-size:16px;font-weight:700;letter-spacing:.06em;margin-bottom:12px}
.tag{font-size:14px;padding:4px 12px}
.badge-tt{font-size:14px;padding:4px 12px}
.badge-moi,.badge-kd{font-size:14px;padding:4px 12px}
.giam,.price .giam{font-size:14px}
.brand{min-height:44px}
.brand-text span{font-size:14px}
figcaption,.price small,small{font-size:14px}
.slide figcaption{font-size:14px}
.hero{padding:16px 0 24px}
/* lưới thẻ: flex-wrap + căn giữa, không để ô trống ở hàng cuối */
.ladder,.price-cards,.cards,.grid-sp,.steps{display:flex;flex-wrap:wrap;justify-content:center;gap:24px}
.ladder{gap:16px}.price-cards{gap:16px}.steps{gap:16px}
.ladder>*,.price-cards>*,.steps>*{flex:0 0 calc((100% - 4 * 16px) / 5);min-width:0}
.cards>*,.grid-sp>*{flex:0 0 calc((100% - 2 * 24px) / 3);min-width:0}
.price-cards .plan-card{height:auto}
.plan-card{padding:16px 12px 12px}
.plan-card .for{font-size:14px}
.plan-card ul{font-size:14.5px}
.plan-card .btn{white-space:nowrap}
.plan-card .price{min-height:88px;display:flex;flex-direction:column;justify-content:flex-end;align-items:flex-start}
.price del{margin-bottom:4px}
.plan-card.rec{background:#fffaf0}
.plan-tag{font-size:14px}
@media (min-width:992px){.plan-card h3{min-height:2.5em;display:flex;align-items:flex-end}}
.stat b{font-size:32px;white-space:nowrap}
.card .card-h{display:flex;align-items:center;gap:12px;margin-bottom:8px}
.card .card-h .icon{margin:0;flex:none;width:28px;height:28px}
.card .card-h h3{margin:0;font-size:18px}
.card>p{max-width:68ch}
.tick{max-width:68ch}
.frame-browser,.frame-phone,.frame-card,.line-media.flip-m .frame-browser{transform:none}
.shots{margin-bottom:24px}
.qc-shot{height:auto}
.qc-shot img{border-radius:16px;box-shadow:var(--shadow);width:100%;height:auto}
/* slide: chú thích + số đếm ngoài khung; 1 bộ điều khiển */
.slide figcaption{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;padding:0}
.car-bar{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-top:8px;font-size:14px;color:var(--muted);min-height:24px}
.car-bar .count{position:static;background:none;color:var(--brand-ink);padding:0;font-size:14px;font-weight:700}
.dots button{width:32px;height:44px}
.dots button::after{margin-top:-5px}
@media (min-width:992px){.has-thumbs .dots{display:none!important}.pdp>.gallery{position:sticky;top:88px;align-self:start}}
@media (max-width:991px){.has-thumbs .thumbs{display:none}}
/* trang sản phẩm */
.cta-row .btn-primary{flex:1 1 100%}
.cta-row .btn-outline{flex:1 1 calc(50% - 5px)}
.breadcrumb a{display:inline-block;padding:10px 0}
.article h2{font-size:28px;margin-top:48px}
.article>ul{list-style:none;padding:0}
.article>ul>li{position:relative;padding-left:28px;margin-bottom:8px}
.article>ul>li::before{content:"";position:absolute;left:4px;top:.6em;width:8px;height:8px;border-radius:50%;background:var(--accent)}
.article p,.article li{max-width:68ch}
.addon-qc{margin:0}
.article .addon-qc{margin:32px 0}
.addon-qc p{max-width:68ch}
.col-box li{font-size:16px}
.qc-hero{background:linear-gradient(135deg,#071a3d 0%,#0B3B8C 60%,#1d4ed8 100%)}
.qc-cards{align-items:stretch}
.qc-plan .price{min-height:0;align-items:flex-start}
.qc-plan .price strong{font-size:32px}
.qc-plan .price small{font-size:14px;color:var(--muted)}
.qc-plan ul{font-size:16px}
.qc-note{text-align:center;margin-top:24px;max-width:none}
.free-list,.nganh-grid{list-style:none;padding:0;margin:0;display:grid;gap:12px 24px}
.free-list{grid-template-columns:repeat(2,1fr)}
.free-list li{display:flex;gap:12px;background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:16px;font-size:17px;font-weight:600;color:var(--brand-ink)}
.free-list .icon{width:28px;height:28px;color:#15803d;margin-top:0}
.nganh-grid{grid-template-columns:repeat(5,1fr)}
.nganh-grid li{display:flex;gap:8px;align-items:center;background:var(--brand-soft);border-radius:999px;padding:12px 16px;font-weight:600;color:var(--brand-ink);min-height:44px}
.nganh-grid .icon{width:20px;height:20px;color:var(--brand)}
.steps4>*{flex-basis:calc((100% - 3 * 16px) / 4)}
.contact-list .addr{display:flex;gap:8px;align-items:center;flex-wrap:wrap;min-height:44px}
.foot-addr{color:var(--muted-on-dark)}
.sp-card{height:auto}
.sp-links{display:flex;gap:8px;margin-top:8px;align-items:stretch}
.sp-links .btn{flex:1 1 0;min-height:44px;white-space:normal;text-align:center;padding:8px 12px;line-height:1.25}
.sp-price{margin-top:auto}
.table-wrap{contain:paint}
.tabs{flex-wrap:wrap}
table.tools{width:100%;border-collapse:collapse;background:#fff;font-size:16px}
table.tools th,table.tools td{padding:12px 16px;text-align:left;border-bottom:1px solid var(--border);vertical-align:top}
table.tools thead th{background:var(--brand-soft);color:var(--brand-ink)}
table.tools tbody th{font-weight:600;color:var(--brand-ink)}
.tools-wrap{contain:none}
.table-hint{display:none;font-size:14px;color:var(--muted);margin:0 0 8px}
/* footer, form, liên hệ */
.site-footer{padding:48px 0}
.site-footer a{text-decoration:none}
.site-footer a:hover{text-decoration:underline}
.site-footer li a{display:inline-block;padding:8px 0}
.form-grid{gap:20px 16px}
.field .err{min-height:0}
.contact-list a{display:inline-flex;align-items:center;gap:8px;min-height:44px}
.sp-body h3 a{display:inline-flex;align-items:center;min-height:44px}
@media (max-width:991px){
  .section{padding:64px 0}
  .line-block{padding:64px 0}
  .ladder>*,.price-cards>*,.steps>*{flex-basis:calc((100% - 2 * 16px) / 3)}
  .grid-sp>*{flex-basis:calc((100% - 24px) / 2)}
  .stats-in{grid-template-columns:repeat(2,1fr)}
  .shots{margin:0 auto 24px;max-width:560px;width:100%}
}
@media (max-width:767px){
  .free-list{grid-template-columns:1fr}
  .nganh-grid{grid-template-columns:repeat(2,1fr)}
  .steps4>*{flex-basis:100%}
  .container{padding:0 16px}
  .section,.line-block{padding:48px 0}
  .ladder>*,.price-cards>*,.cards>*,.grid-sp>*,.steps>*{flex-basis:100%}
  .ladder{padding:0;margin:14px 0 0}
  .ladder .plan-card ul,.ladder .plan-card .for{display:none}
  .ladder .plan-card .price{min-height:0}
  .chooser{display:grid;grid-template-columns:1fr 1fr;gap:8px}
  .chooser-label{grid-column:1/-1}
  .chooser a{justify-content:center;text-align:center}
  .line-actions .btn,.cta-row .btn{width:100%}
  .site-footer{padding:48px 0 96px}
  .article h2{font-size:22px;margin-top:40px}
  .table-hint{display:block}
  table.cmp{min-width:680px;display:table}
  table.cmp thead{display:table-header-group}
  table.cmp tbody{display:table-row-group}
  table.cmp tr{display:table-row;border-bottom:0;padding:0}
  table.cmp td,table.cmp th{display:table-cell;width:auto;border-bottom:1px solid var(--border);padding:12px 14px;text-align:center!important}
  table.cmp td::before{content:none!important}
  table.cmp td:first-child,table.cmp th:first-child{position:sticky;left:0;background:#fff;z-index:2;min-width:160px;text-align:left!important;box-shadow:1px 0 0 var(--border)}
  table.cmp tr.grp td{display:table-cell;position:sticky;left:0}
  .sp-card{flex-direction:row}
  .sp-thumb{flex:0 0 112px;aspect-ratio:auto}
  .sp-body{padding:12px;gap:6px}
  .sp-body p{display:none}
  .sp-links{flex-direction:column}
  .sp-body h3{font-size:16px}
  .filters{flex-wrap:nowrap;overflow-x:auto;padding-bottom:6px}
  .chip{white-space:nowrap;flex:none}
  .addon-qc .btn{width:100%}
  .tabs .chip{flex:1 1 100%}
  .tools-wrap{border:0;background:transparent;overflow:visible}
  table.tools,table.tools tbody,table.tools tr,table.tools th,table.tools td{display:block;width:100%}
  table.tools thead{display:none}
  table.tools tr{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:12px 16px;margin-bottom:16px}
  table.tools th,table.tools td{border:0;padding:6px 0}
  table.tools tbody th{font-size:18px}
  table.tools td::before{content:attr(data-l);display:block;font-size:14px;font-weight:700;color:var(--brand)}
}
/* ---- chuyển động trang chủ: thẻ gói hiện so le, rê chuột nhấc thẻ, thẻ Khuyên dùng có viền ánh sáng chạy ---- */
@keyframes card-rise{from{opacity:0;transform:translateY(26px)}to{opacity:1;transform:none}}
@keyframes sheen{from{background-position:0 0,0% 0}to{background-position:0 0,300% 0}}
.js .ladder .plan-card.reveal{transition:opacity .45s ease,transform .25s ease,box-shadow .25s ease}
.js .ladder .plan-card.reveal.in{animation:card-rise .6s cubic-bezier(.2,.7,.2,1) backwards;animation-delay:calc(var(--i,0) * 110ms)}
.ladder .plan-card:hover{transform:translateY(-8px);box-shadow:0 18px 38px rgba(7,26,61,.28)}
.ladder .plan-card.rec{border:2px solid transparent;background:linear-gradient(#fffaf0,#fffaf0) padding-box,linear-gradient(110deg,var(--accent) 0%,#fff1c2 25%,var(--accent) 50%,#fff1c2 75%,var(--accent) 100%) border-box;background-size:auto,300% 100%;animation:sheen 5s linear infinite}
.js .ladder .plan-card.rec.reveal.in{animation:card-rise .6s cubic-bezier(.2,.7,.2,1) backwards,sheen 5s linear infinite;animation-delay:calc(var(--i,0) * 110ms),0s}
.stat b{font-variant-numeric:tabular-nums}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  .frame-browser,.frame-phone,.frame-card{transform:none!important}
  .js .reveal{opacity:1;transform:none}
}
@media print{.site-header,.mobile-bar,.cta-band{display:none}}