:root{
  --g900:#0B5F35;--g700:#0F7A44;--g600:#149255;--g500:#1BA862;--g400:#3DC07C;
  --g100:#DFF3E8;--g50:#F1FAF5;
  --ink:#17222B;--ink2:#4A5A66;--mute:#5F6E7A;--line:#E6ECE9;
  --zalo:#0068FF;--red:#D92D20;
  --r:14px;--safe:env(safe-area-inset-bottom,0px);--hd:52px
}
*{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font:15px/1.55 system-ui,"Segoe UI",Roboto,Arial,sans-serif;color:var(--ink);background:#fff;overflow-x:hidden}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,textarea{font:inherit;color:inherit}
.wrap{max-width:1180px;margin:0 auto;padding:0 12px}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}

/* header */
.hd{position:sticky;top:0;z-index:50;background:#fff;border-bottom:1px solid var(--line)}
.hd-top{display:flex;align-items:center;flex-wrap:wrap;gap:10px;padding:9px 0}
.back{font-size:26px;line-height:1;color:var(--g700);width:30px;flex:none;margin-left:-6px}
.logo{display:flex;align-items:center;gap:8px;font-weight:800;color:var(--g700);font-size:16.5px;letter-spacing:-.3px;min-width:0}
.logo span:last-child{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.logo-mark{width:32px;height:32px;border-radius:10px;background:linear-gradient(135deg,var(--g400),var(--g700));display:grid;place-items:center;color:#fff;font-size:17px;flex:none}
.hd-zalo{display:none;margin-left:auto;align-items:center;gap:6px;background:var(--zalo);color:#fff;font-weight:600;font-size:13.5px;padding:9px 14px;border-radius:999px;white-space:nowrap}

/* ô tìm kiếm nằm ngay trên list, dính lại khi cuộn */
.no-hd{--hd:0px} /* trang chủ không có thanh header */
.searchbar{position:sticky;top:var(--hd);z-index:40;background:#fff;padding:10px 0;margin-bottom:2px}
.searchbar.stuck{box-shadow:0 4px 14px rgba(16,44,30,.08)}
.search{position:relative}
.search input{width:100%;height:44px;border:1.5px solid var(--line);background:var(--g50);border-radius:999px;padding:0 44px 0 40px;outline:0;transition:border-color .15s,box-shadow .15s,background .15s}
.search input:focus{border-color:var(--g400);background:#fff;box-shadow:0 0 0 4px var(--g100)}
.search input::-webkit-search-cancel-button,.search input::-webkit-search-decoration{-webkit-appearance:none;display:none}
.search svg{position:absolute;left:13px;top:12px;width:19px;height:19px;fill:none;stroke:var(--g600);stroke-width:2}
.search .clr{position:absolute;right:7px;top:7px;width:30px;height:30px;border:0;background:#E9EFEC;border-radius:50%;color:var(--ink2);cursor:pointer;display:none;font-size:15px;line-height:30px}
.search.has .clr{display:block}

/* hero */
.hero{background:linear-gradient(140deg,var(--g900),var(--g700) 65%,#12894C);color:#fff;border-radius:0 0 22px 22px;padding:18px 0 20px;margin-bottom:14px}
.hero h1{font-size:20px;line-height:1.3;font-weight:800;letter-spacing:-.4px}
.hero p{color:#E4F5EC;font-size:13.5px;margin-top:6px}
.hero-cta{display:flex;gap:8px;margin-top:14px;flex-wrap:wrap}
.btn-z{display:inline-flex;align-items:center;gap:7px;background:#fff;color:var(--zalo);font-weight:700;padding:11px 16px;border-radius:999px;font-size:14px;box-shadow:0 4px 14px rgba(0,0,0,.12)}
.btn-gh{display:inline-flex;align-items:center;gap:7px;border:1.5px solid rgba(255,255,255,.55);color:#fff;font-weight:600;padding:11px 16px;border-radius:999px;font-size:14px}

/* section title */
.st{display:flex;align-items:center;gap:10px;margin:18px 0 12px}
.st h2{font-size:17px;font-weight:800;letter-spacing:-.3px}
.st .bar{width:4px;height:19px;border-radius:3px;background:var(--g500)}
.st .cnt{margin-left:auto;font-size:12.5px;color:var(--mute)}

/* chips */
.chips{display:flex;gap:8px;overflow-x:auto;padding-bottom:12px;scrollbar-width:none;-webkit-overflow-scrolling:touch}
.chips::-webkit-scrollbar{display:none}
.chip{flex:none;border:1.5px solid var(--line);background:#fff;color:var(--ink2);padding:8px 14px;border-radius:999px;font-size:13.5px;cursor:pointer;transition:background .15s,color .15s,border-color .15s}
.chip.on{background:var(--g700);border-color:var(--g700);color:#fff;font-weight:600}

/* grid */
.grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;display:flex;flex-direction:column;transition:box-shadow .18s,transform .18s,border-color .18s}
.card[hidden]{display:none}
.card:active{transform:scale(.98)}
.card .ph{position:relative;aspect-ratio:1/1;padding:8px}
.card .ph img{width:100%;height:100%;object-fit:contain}
.card .tagpill{position:absolute;left:8px;top:8px;background:var(--g100);color:var(--g700);font-size:10.5px;font-weight:700;padding:3px 8px;border-radius:999px;max-width:calc(100% - 16px);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.card .bd{padding:9px 10px 12px;display:flex;flex-direction:column;gap:5px;flex:1}
.card h3{font-size:13.5px;font-weight:600;line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:38px}
.card .code{font-size:11.5px;color:var(--mute)}
.card .go{margin-top:auto;text-align:center;background:var(--g50);color:var(--g700);border:1px solid var(--g100);font-weight:600;font-size:13px;padding:9px 8px;border-radius:9px}
.empty{text-align:center;padding:46px 16px;color:var(--mute);grid-column:1/-1}
.empty b{display:block;font-size:34px;margin-bottom:8px}
.empty a{color:var(--zalo);font-weight:600}

/* zalo banner */
.zbanner{margin:22px 0;background:var(--g50);border:1px dashed var(--g400);border-radius:var(--r);padding:16px;text-align:center}
.zbanner h3{font-size:15.5px;font-weight:700}
.zbanner p{font-size:13px;color:var(--ink2);margin:5px 0 12px}
.zbtn{display:inline-flex;align-items:center;gap:8px;background:var(--zalo);color:#fff;font-weight:700;padding:12px 20px;border-radius:999px;font-size:14.5px}

/* fab + sticky bar */
.fab{position:fixed;right:14px;bottom:calc(16px + var(--safe));z-index:80;display:flex;align-items:center;gap:8px;background:var(--zalo);color:#fff;font-weight:700;padding:12px 16px;border-radius:999px;box-shadow:0 8px 22px rgba(0,104,255,.4);font-size:14px}
.fab::before{content:"";position:absolute;inset:0;border-radius:999px;animation:pulse 2.4s infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(0,104,255,.45)}70%{box-shadow:0 0 0 14px rgba(0,104,255,0)}100%{box-shadow:0 0 0 0 rgba(0,104,255,0)}}
@media(prefers-reduced-motion:reduce){.fab::before{animation:none}}
.sticky-z{position:fixed;left:0;right:0;bottom:0;z-index:90;background:#fff;border-top:1px solid var(--line);padding:9px 12px calc(9px + var(--safe));display:flex;gap:9px;box-shadow:0 -4px 18px rgba(16,44,30,.07)}
.sticky-z a{flex:1;display:flex;align-items:center;justify-content:center;gap:7px;height:44px;border-radius:11px;font-weight:700;font-size:14.5px;background:var(--zalo);color:#fff}
.sticky-z a.tel{flex:0 0 52px;background:var(--g50);color:var(--g700)}

/* detail */
.crumb{font-size:12.5px;color:var(--mute);padding:12px 0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.crumb b{color:var(--g700);font-weight:600}
.gal{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:10px}
.gal .main{position:relative;width:100%;aspect-ratio:1/1;display:grid;place-items:center;overflow:hidden;border-radius:10px;border:0;background:#fff;padding:0;cursor:zoom-in;touch-action:pan-y}
.gal .main img{width:100%;height:100%;object-fit:contain;pointer-events:none}
.gal .zoom,.gal .pos{position:absolute;bottom:8px;display:flex;align-items:center;gap:5px;background:rgba(23,34,43,.62);color:#fff;font-size:11.5px;font-weight:600;padding:5px 10px;border-radius:999px;backdrop-filter:blur(3px)}
.gal .zoom{right:8px}
.gal .pos{left:8px}
.thumbs{display:flex;gap:8px;margin-top:10px;overflow-x:auto;scrollbar-width:none}
.thumbs::-webkit-scrollbar{display:none}
.thumbs button{width:62px;height:62px;flex:none;border:1.5px solid var(--line);border-radius:9px;padding:4px;background:#fff;cursor:pointer}
.thumbs button[aria-current=true]{border-color:var(--g500)}
.thumbs img{width:100%;height:100%;object-fit:contain}
.pinfo{padding:14px 0}
.pinfo h1{font-size:19px;font-weight:800;line-height:1.35;letter-spacing:-.3px}
.meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:9px}
.badge{font-size:12px;font-weight:600;padding:5px 10px;border-radius:999px;background:var(--g50);color:var(--g700);border:1px solid var(--g100)}
.badge.ok{background:#EAFBF1}
.lead{margin-top:12px;font-size:14.5px;color:var(--ink2);line-height:1.65}
.act{display:grid;grid-template-columns:1fr 1fr;gap:9px;margin-top:16px}
.act a{display:flex;align-items:center;justify-content:center;gap:7px;height:46px;border-radius:11px;font-weight:700;font-size:14.5px}
.act .z{background:var(--zalo);color:#fff}
.act .p{background:var(--g700);color:#fff}
.tabs{display:flex;gap:6px;border-bottom:1px solid var(--line);margin-top:22px;overflow-x:auto;scrollbar-width:none}
.tabs::-webkit-scrollbar{display:none}
.tabs button{flex:none;background:0;border:0;padding:12px 14px;font-weight:600;font-size:14px;color:var(--mute);border-bottom:2.5px solid transparent;cursor:pointer}
.tabs button[aria-selected=true]{color:var(--g700);border-color:var(--g500)}
.pane{padding:14px 0;font-size:14.5px;line-height:1.75;color:var(--ink2)}
.pane[hidden]{display:none}
.pane h3,.pane h4{color:var(--ink);font-size:15px;margin:16px 0 6px}
.pane>:first-child{margin-top:0}
.pane ul,.pane ol{padding-left:20px}
.pane p{margin:6px 0}
.pane table{width:100%;border-collapse:collapse;margin:10px 0}
.pane td,.pane th{border:1px solid var(--line);padding:7px 9px;font-size:13.5px}
.disclaim{margin-top:14px;background:var(--g50);border-left:3px solid var(--g500);padding:10px 12px;border-radius:0 10px 10px 0;font-size:12.5px;color:var(--ink2)}

/* lightbox xem ảnh toàn màn hình */
body.lb-open{overflow:hidden}
/* khi chưa mở phải tắt hẳn, không thì lớp phủ trong suốt che hết trang và nuốt mọi cú click */
.lb{position:fixed;inset:0;z-index:200;background:#0E1712;display:flex;flex-direction:column;opacity:0;visibility:hidden;pointer-events:none;transition:opacity .16s,visibility .16s}
.lb.on{opacity:1;visibility:visible;pointer-events:auto}
.lb-bar{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:calc(10px + env(safe-area-inset-top,0px)) 12px 8px;color:#fff}
.lb-bar .t{font-size:13.5px;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.lb-bar .n{font-size:12.5px;color:#B8C9C0;flex:none}
.lb-x{width:42px;height:42px;flex:none;border:0;border-radius:50%;background:rgba(255,255,255,.15);color:#fff;font-size:19px;cursor:pointer}
.lb-stage{position:relative;flex:1;min-height:0;display:grid;place-items:center;padding:0 6px;touch-action:pan-y}
.lb-stage img{max-width:100%;max-height:100%;object-fit:contain;-webkit-user-drag:none;user-select:none}
/* nền tối: nút phải nổi cả khi đè lên ảnh sản phẩm nền trắng */
.lb-nav{position:absolute;top:50%;transform:translateY(-50%);width:44px;height:44px;border:0;border-radius:50%;background:rgba(14,23,18,.6);color:#fff;font-size:21px;line-height:1;cursor:pointer;display:grid;place-items:center;box-shadow:0 2px 10px rgba(0,0,0,.35)}
.lb-nav[disabled]{opacity:0;pointer-events:none}
.lb-nav.p{left:8px}
.lb-nav.n{right:8px}
.lb-strip{display:flex;gap:8px;justify-content:center;overflow-x:auto;scrollbar-width:none;padding:12px 12px calc(14px + var(--safe))}
.lb-strip::-webkit-scrollbar{display:none}
.lb-strip button{width:54px;height:54px;flex:none;border:2px solid transparent;border-radius:9px;background:#fff;padding:3px;cursor:pointer}
.lb-strip button[aria-current=true]{border-color:var(--g400)}
.lb-strip img{width:100%;height:100%;object-fit:contain}
@media(prefers-reduced-motion:reduce){.lb{transition:none}}

/* footer */
.ft{margin-top:28px;background:var(--g900);color:#cfe6da;padding:22px 0 calc(90px + var(--safe))}
.ft h4{color:#fff;font-size:15px;margin-bottom:8px}
.ft p,.ft a{font-size:13px;line-height:1.85}
.ft .cols{display:grid;gap:18px}
.ft .cp{margin-top:16px;padding-top:14px;border-top:1px solid rgba(255,255,255,.15);font-size:12px;color:#BFD9CC}

@media(min-width:640px){
  .grid{grid-template-columns:repeat(3,1fr);gap:14px}
  .hero h1{font-size:26px}
  .pinfo h1{font-size:22px}
}
@media(min-width:900px){
  :root{--hd:58px}
  .grid{grid-template-columns:repeat(4,1fr)}
  .hd-zalo{display:inline-flex}
  .hd-top{padding:12px 0;flex-wrap:nowrap}
  .search{max-width:560px}
  .fab,.sticky-z,.back{display:none}
  .ft{padding-bottom:22px}
  .ft .cols{grid-template-columns:2fr 1fr 1fr}
  .det{display:grid;grid-template-columns:420px 1fr;gap:26px;align-items:start}
  .card{cursor:pointer}
  .card:hover{box-shadow:0 1px 2px rgba(16,44,30,.05),0 8px 24px rgba(16,44,30,.08);border-color:var(--g100);transform:translateY(-2px)}
  .card:hover .go{background:var(--g700);color:#fff;border-color:var(--g700)}
  .card h3{font-size:14px}
}
@media(min-width:1100px){.grid{grid-template-columns:repeat(5,1fr)}}