:root{--bg:#fff;--card:#fff;--navbg:#f8f9fb;--text:#1d2330;--muted:#6b7280;--line:#e5e7eb;--header:#2a83e9;--accent:#1d72dc;--buy:#ee4d2d;--good:#15803d;--bad:#b91c1c;--warn:#b45309}
@media(prefers-color-scheme:dark){:root{--bg:#12151b;--card:#1a1f29;--navbg:#1a1f29;--text:#e6e9ef;--muted:#9aa3b2;--line:#2b3240;--header:#1d5fbf;--accent:#5aa2f5;--buy:#f0674a;--good:#4ade80;--bad:#f87171;--warn:#fbbf24}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--text);font:16px/1.65 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
a{color:var(--accent)}img{max-width:100%;height:auto}
.wrap{max-width:1180px;margin:0 auto;padding:0 16px}
.site-header{background:var(--card);border-bottom:1px solid var(--line)}
.site-header .bar{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-top:12px;padding-bottom:12px}
.brand{font-size:22px;font-weight:800;color:var(--text);text-decoration:none}
.search input{width:240px;max-width:100%;padding:7px 12px;font:inherit;color:var(--text);background:var(--bg);border:1px solid var(--line);border-radius:99px}
.cats{display:flex;gap:4px;overflow-x:auto;flex:1;margin:0 8px}
.cats a{white-space:nowrap;padding:4px 12px;border-radius:99px;text-decoration:none;color:var(--muted);font-size:14px}
.cats a.on,.cats a:hover{background:var(--accent);color:#fff}
main{padding-top:24px;padding-bottom:40px;min-height:60vh}
.page-title{font-size:26px;margin:0 0 18px}
.muted{color:var(--muted);font-size:14px}
.empty{text-align:center;color:var(--muted);padding:60px 0}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:20px}
.card{background:var(--card);border:1px solid var(--line);border-radius:10px;overflow:hidden;display:flex;flex-direction:column}
.thumb{display:block;aspect-ratio:16/10;background:var(--line)}
.thumb img{width:100%;height:100%;object-fit:cover;display:block}
.noimg{display:block;width:100%;height:100%}
.card-body{padding:14px;display:flex;flex-direction:column;gap:6px;flex:1}
.card h2{font-size:17px;line-height:1.35;margin:0}.card h2 a{color:var(--text);text-decoration:none}.card h2 a:hover{color:var(--accent)}
.card p{margin:0;color:var(--muted);font-size:14px}
.cat{font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.03em;text-decoration:none}
.meta{display:flex;align-items:center;gap:12px;margin-top:auto;color:var(--muted);font-size:13px}
.score{display:inline-block;padding:1px 9px;border-radius:6px;background:var(--accent);color:#fff;font-weight:700}.score small{opacity:.8;font-weight:400}
.pager{display:flex;gap:6px;justify-content:center;margin-top:28px;flex-wrap:wrap}
.pager a,.pager span{padding:6px 12px;border:1px solid var(--line);border-radius:6px;background:var(--card);text-decoration:none}
.pager .on{background:var(--accent);border-color:var(--accent);color:#fff}
.post h1{font-size:30px;line-height:1.25;margin:6px 0 10px}
.crumbs{font-size:14px;color:var(--muted)}.crumbs a{text-decoration:none}
.hero{margin:18px 0}.hero img{width:100%;border-radius:10px}
.lead{font-size:18px;color:var(--muted)}
.proscons{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:20px 0}
@media(max-width:640px){.proscons{grid-template-columns:1fr}.search{display:none}}
.proscons section{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:4px 16px 8px}
.proscons h2{font-size:16px}.pros h2{color:var(--good)}.cons h2{color:var(--bad)}
.proscons ul{margin:0;padding-left:20px}
.content h2{font-size:22px;margin:30px 0 8px}.content h3{font-size:18px}
.content img{border-radius:8px}.content figure{margin:18px 0}.content figcaption{font-size:12px;color:var(--muted);margin-top:4px;text-align:center}
.content table{border-collapse:collapse;width:100%;display:block;overflow-x:auto}.content th,.content td{border:1px solid var(--line);padding:6px 10px}
.advice{margin:32px 0;padding:18px 20px;border:2px solid var(--accent);border-radius:12px;background:var(--card)}
.advice h2{margin:0 0 6px;font-size:20px}.advice p{white-space:pre-line}
.cta{display:inline-block;margin:6px 0;padding:11px 20px;border-radius:8px;background:var(--buy);color:#fff;font-weight:700;text-decoration:none}
.related{margin-top:40px}.related h2{font-size:20px}
.preview{background:var(--warn);color:#fff;padding:8px 14px;border-radius:8px;margin-bottom:16px;font-weight:600}
.site-footer{border-top:1px solid var(--line);background:var(--card);color:var(--muted);font-size:13px;padding:20px 0}

/* ===== Trang bài viết kiểu TechGear ===== */
.layout{display:grid;grid-template-columns:minmax(0,1fr);gap:28px;margin-top:8px}
.layout.has-side{grid-template-columns:minmax(0,1fr) 300px}
@media(max-width:900px){.layout.has-side{grid-template-columns:minmax(0,1fr)}}
.post h1{font-size:32px;line-height:1.2;margin:8px 0 6px}
.byline{color:var(--muted);font-size:14px;margin-bottom:18px}
.stars{display:inline-block;font-style:normal;letter-spacing:2px;background:linear-gradient(90deg,#f59e0b var(--p),var(--line) var(--p));-webkit-background-clip:text;background-clip:text;color:transparent}
.product{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(280px,1fr);gap:0;background:var(--card);border:1px solid var(--line);border-radius:12px;overflow:hidden;box-shadow:0 2px 8px rgba(0,0,0,.05)}
@media(max-width:700px){.product{grid-template-columns:1fr}}
.gallery{display:grid;grid-template-columns:64px minmax(0,1fr);gap:12px;padding:16px;align-items:start}
.thumbs{display:flex;flex-direction:column;gap:8px;width:64px}
.thumbs button{padding:0;border:2px solid var(--line);border-radius:8px;overflow:hidden;background:var(--bg);cursor:pointer;aspect-ratio:1}
.thumbs button.on{border-color:var(--accent)}.thumbs img{width:100%;height:100%;object-fit:cover;display:block}
.stage{position:relative;aspect-ratio:4/3;min-width:0;display:flex;align-items:center;justify-content:center;background:var(--bg);border-radius:10px;overflow:hidden}
.ai-note{position:absolute;left:8px;bottom:8px;padding:2px 8px;border-radius:99px;background:rgba(0,0,0,.55);color:#fff;font-size:12px}
.stage img{width:100%;height:100%;object-fit:contain}
.buybox{padding:24px 28px;display:flex;flex-direction:column;gap:14px;justify-content:center;border-left:1px solid var(--line)}
@media(max-width:700px){.buybox{border-left:0;border-top:1px solid var(--line);padding:18px}.gallery{display:flex;flex-direction:column-reverse;padding:12px}.thumbs{flex-direction:row;width:auto}.thumbs button{width:60px}}
.buybox h2{font-size:20px;margin:0;line-height:1.35}.rate{font-size:15px}.rate b{font-size:20px;margin-left:4px}
.buybox .cta{text-align:center;margin:4px 0 0;white-space:nowrap}
.sec{font-size:24px;margin:30px 0 12px}
.glance{display:grid;grid-template-columns:1fr;gap:16px}
@media(max-width:640px){.glance{grid-template-columns:1fr}}
.glance section{background:var(--card);border:1px solid var(--line);border-radius:10px;overflow:hidden;box-shadow:0 2px 6px rgba(0,0,0,.04)}
.glance h3{margin:0;padding:10px 16px;color:#fff;font-size:17px}
.glance .good h3{background:#16a34a}.glance .bad h3{background:#dc2626}
.glance ul{list-style:none;margin:0;padding:12px 16px}.glance li{position:relative;padding:4px 0 4px 26px}
.glance li:before{position:absolute;left:0;font-weight:700}
.glance .good li:before{content:"✔";color:#16a34a}.glance .bad li:before{content:"✖";color:#dc2626}
.side .box{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:14px 16px;position:sticky;top:16px}
.side h2{font-size:17px;margin:0 0 10px}
.mini{display:flex;gap:10px;align-items:center;padding:8px 0;border-top:1px solid var(--line);text-decoration:none;color:var(--text)}
.mini:first-of-type{border-top:0}.mini img,.mini .noimg{width:64px;height:64px;border-radius:8px;object-fit:cover;flex:none;background:var(--line)}
.mini b{display:block;font-size:14px;line-height:1.3}.mini em{font-style:normal;font-size:12px;color:var(--muted)}

/* ===== Tinh chỉnh cho sát mẫu TechGear ===== */
@media(prefers-color-scheme:light){:root{--bg:#fff}}
.brand{display:flex;align-items:center;gap:8px;font-size:20px;letter-spacing:-.01em}
.logo{width:28px;height:28px;color:var(--accent);flex:none}
.cats a{border-radius:0;padding:6px 12px;color:var(--text);font-weight:600;font-size:14px}
.cats a.on,.cats a:hover{background:none;color:var(--accent)}
.search input{width:210px;padding-left:34px;background:var(--bg) url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%239ca3af' stroke-width='2.2' stroke-linecap='round'><circle cx='11' cy='11' r='7'/><path d='m20 20-3.5-3.5'/></svg>") no-repeat 12px center}
.post h1{font-size:36px;font-weight:800;letter-spacing:-.02em;line-height:1.15}
.buybox .cta{display:block;width:100%}.buybox small{text-align:center}
/* Ảnh trong bài: nằm giữa, rộng vừa phải */
.content figure{float:none;clear:both;margin:20px auto;text-align:center;max-width:100%}
.content figure img,.content>img,.content p>img{display:block;margin:0 auto;max-width:100%;height:auto}
.content>img,.content p>img{margin:18px auto}
@media(min-width:700px){.content figure{max-width:70%}.content figure img{width:100%}.content>img,.content p>img{max-width:70%}}

.stage{position:relative}.ai-note{position:absolute;right:6px;bottom:6px;background:rgba(0,0,0,.55);color:#fff;font-size:11px;padding:2px 6px;border-radius:4px}

.logo-img{display:block;height:52px;width:auto;max-width:280px;object-fit:contain}
.site-footer a{color:var(--accent)}
.zalo-fab{position:fixed;right:16px;bottom:16px;z-index:50;display:flex;align-items:center;gap:8px;padding:11px 16px;border-radius:99px;background:#0068ff;color:#fff;font-weight:700;font-size:14px;line-height:1;text-decoration:none;box-shadow:0 4px 14px rgba(0,104,255,.4)}
.zalo-fab:hover{filter:brightness(1.1)}
@media(max-width:700px){.logo-img{height:40px;max-width:190px}.zalo-fab{right:12px;bottom:12px}}

/* ===== Chuyên mục con: dropdown trên menu + chip trên trang chuyên mục ===== */
.cats .dd{position:relative;display:flex;align-items:center}
.cats .dd .caret{font-size:11px;opacity:.7}
.cats .dd-menu{display:none;position:absolute;left:0;top:100%;z-index:40;min-width:190px;padding:6px 0;background:var(--card);border:1px solid var(--line);border-radius:8px;box-shadow:0 8px 24px rgba(0,0,0,.12)}
.cats .dd-menu a{display:block;white-space:nowrap;padding:7px 16px;font-weight:500}
.cats .dd:hover .dd-menu,.cats .dd:focus-within .dd-menu{display:block}
@media(min-width:901px){.cats{overflow:visible;flex-wrap:wrap}}
/* Desktop: gói menu + ô tìm kiếm thành một khối ngang; nút ☰ và nút ▾ mở chuyên mục con chỉ dùng trên điện thoại */
.menu-panel{display:flex;align-items:center;flex:1;gap:16px;min-width:0}
.nav-toggle,.cats .dd-btn{display:none}
@media(max-width:900px){
  /* Điện thoại/máy tính bảng: menu GOM LẠI sau nút ☰, bấm mới xổ ra danh sách dọc */
  .site-header .bar{flex-wrap:wrap;gap:8px 12px}
  .nav-toggle{display:flex;flex-direction:column;justify-content:center;gap:5px;width:42px;height:42px;margin-left:auto;padding:0 10px;background:none;border:1px solid var(--line);border-radius:8px;cursor:pointer}
  .nav-toggle span{display:block;height:2px;border-radius:2px;background:var(--text);transition:transform .2s,opacity .2s}
  .site-header.open .nav-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg)}
  .site-header.open .nav-toggle span:nth-child(2){opacity:0}
  .site-header.open .nav-toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
  .menu-panel{display:none;flex:0 0 100%;flex-direction:column;align-items:stretch;gap:12px;padding:4px 0 8px}
  .site-header.open .menu-panel{display:flex}
  .cats{flex-direction:column;flex:none;gap:0;margin:0;overflow:visible}
  .cats>a,.cats .dd>a{display:block;padding:12px 4px;border-radius:0;border-bottom:1px solid var(--line);font-size:16px;color:var(--text)}
  .cats a.on,.cats a:hover{background:none;color:var(--accent)}
  .cats .dd{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:stretch}
  .cats .dd .caret{display:none}
  .cats .dd-btn{display:flex;align-items:center;justify-content:center;width:44px;background:none;border:0;border-bottom:1px solid var(--line);color:var(--muted);font-size:14px;cursor:pointer}
  .cats .dd-btn span{transition:transform .2s}
  .cats .dd.open .dd-btn span{transform:rotate(180deg)}
  .cats .dd .dd-menu,.cats .dd:hover .dd-menu,.cats .dd:focus-within .dd-menu{display:none;grid-column:1/-1;position:static;min-width:0;padding:0 0 0 16px;border:0;box-shadow:none;background:none}
  .cats .dd.open .dd-menu{display:block}
  .cats .dd-menu a{display:block;padding:10px 4px;font-size:15px;font-weight:400;color:var(--muted);border-bottom:1px solid var(--line)}
  .menu-panel .search{display:block}
  .menu-panel .search input{width:100%;padding-top:10px;padding-bottom:10px}
}
.subcats{display:flex;gap:8px;flex-wrap:wrap;margin:0 0 18px}
.subcats a{padding:5px 14px;border:1px solid var(--line);border-radius:99px;background:var(--card);text-decoration:none;color:var(--text);font-size:14px}
.subcats a:hover{border-color:var(--accent);color:var(--accent)}
.subcats small{color:var(--muted);margin-left:4px}

/* ===== Video đại diện ===== */
.thumb video,.mini video{width:100%;height:100%;object-fit:cover;display:block}
.mini video{width:64px;height:64px;border-radius:8px;flex:none;background:var(--line)}
.thumbs button video{width:100%;height:100%;object-fit:cover;display:block;pointer-events:none}
.thumbs button.vid{position:relative}
.thumbs button.vid::after{content:"▶";position:absolute;inset:auto 4px 4px auto;width:20px;height:20px;border-radius:50%;background:rgba(0,0,0,.6);color:#fff;font-size:10px;line-height:20px;text-align:center}
.stage video{width:100%;height:100%;object-fit:contain;background:#000}

/* Menu thêm và chân trang do admin tùy chỉnh */
.menu-links{display:flex;gap:4px;flex-wrap:wrap;align-items:center}
.menu-links a{white-space:nowrap;padding:6px 12px;color:var(--text);font-weight:600;font-size:14px;text-decoration:none}
.menu-links a:hover{color:var(--accent)}
@media(max-width:900px){.menu-links{flex-direction:column;align-items:stretch;gap:0}.menu-links a{display:block;padding:12px 4px;border-bottom:1px solid var(--line);font-size:16px}}
.footer-about{margin:0 0 10px;white-space:pre-line;max-width:640px}
.footer-links{display:flex;gap:6px 18px;flex-wrap:wrap;margin:0 0 10px;padding:0;list-style:none}

/* ===================================================================
   Giao diện mới (theo mẫu totkhong.com): header xanh + menu icon,
   trang chủ nhiều khối, nút mua nổi + nút lên đầu trang
   =================================================================== */
.wrap{max-width:1320px;margin:0 auto;padding-left:24px;padding-right:24px}
body.wide .wrap{max-width:1320px}
.sr-only{position:absolute;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* --- Header --- */
.site-header{background:transparent;border-bottom:0}
.hdr-top{background:var(--header)}
.hdr-row{display:flex;align-items:center;gap:16px;padding-top:10px;padding-bottom:10px}
.hdr-row .brand{color:#fff;flex:none;font-size:20px;font-weight:800;text-decoration:none}
.logo{width:44px;height:44px;color:#fff}
.logo .lg-s{stroke:var(--header)}.logo .lg-f{fill:var(--header)}
.hdr-row .search{display:block;flex:0 1 450px;margin-left:auto;min-width:0}
.hdr-row .search input{display:block;width:100%;margin:0;padding:9px 16px 9px 38px;border:0;border-radius:99px;color:#1d2330;font:inherit;font-size:14px;
    background:#fff url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%238a93a3' stroke-width='2.2' stroke-linecap='round'><circle cx='11' cy='11' r='7'/><path d='m20 20-3.5-3.5'/></svg>") no-repeat 14px center}
.hdr-row .search input::placeholder{color:#8a93a3}
.hdr-row .search input:focus{outline:2px solid rgba(255,255,255,.75);outline-offset:2px}

/* --- Thanh menu chuyên mục (có icon) --- */
.navbar{position:relative;z-index:30;background:var(--navbg);border-bottom:1px solid var(--accent)}
.nav-in{display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.cats{flex:0 1 auto;margin:0;gap:2px;overflow:visible;flex-wrap:wrap}
.cats>a,.cats .dd>a{display:inline-flex;align-items:center;gap:7px;padding:11px 12px;border-radius:0;color:var(--text);font-weight:600;font-size:14px;white-space:nowrap;text-decoration:none}
.cats .ic{display:inline-flex;color:var(--accent)}
.cats a.on,.cats a:hover{background:none;color:var(--accent)}
.menu-links a{padding:11px 12px}

/* --- Tiêu đề khối --- */
.sec-title{display:inline-block;margin:26px 0 14px;padding-bottom:6px;border-bottom:3px solid var(--accent);font-size:20px;font-weight:800;line-height:1.25;text-transform:uppercase;letter-spacing:.01em}
.sec-row{display:flex;align-items:baseline;justify-content:space-between;gap:12px;margin:30px 0 14px}
.sec-h2{margin:0;font-size:20px;font-weight:800;line-height:1.25}
.sec-row a{font-size:14px;text-decoration:none}
.sec-row a:hover{text-decoration:underline}
section[aria-labelledby="h-featured"]>.sec-title{margin-top:22px}

/* --- Nổi bật nhất --- */
.feat{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(0,1fr);gap:18px}
.hero-card{position:relative;display:block;aspect-ratio:550/304;border-radius:8px;overflow:hidden;background:#111;color:#fff;text-decoration:none}
.hero-card .media{position:absolute;inset:0}
.hero-card img,.hero-card video,.hero-card .noimg{display:block;width:100%;height:100%;object-fit:cover}
.hero-card::after{content:"";position:absolute;inset:0;background:linear-gradient(to top,rgba(0,0,0,.9) 0,rgba(0,0,0,.5) 36%,rgba(0,0,0,0) 66%)}
.badge{position:absolute;z-index:2;top:11px;left:11px;padding:4px 10px;border-radius:4px;background:var(--accent);color:#fff;font-size:13px;font-weight:700;line-height:1.2}
.hero-txt{position:absolute;z-index:2;left:0;right:0;bottom:0;display:flex;flex-direction:column;gap:6px;padding:14px}
.hero-txt strong{font-size:20px;line-height:1.3;font-weight:800}
.hero-txt small{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;font-size:12px;line-height:1.5;opacity:.92}
.hero-txt .m,.hero-txt .m svg{color:#fff}
.m{display:flex;flex-wrap:wrap;gap:4px 10px;font-size:11px;color:var(--muted)}
.m svg{margin-right:4px;vertical-align:-2px;color:var(--accent)}
.feat-side{display:flex;flex-direction:column;gap:11px}
.sd{display:grid;grid-template-columns:140px minmax(0,1fr);gap:12px;align-items:start}
.sd-img,.prd-img,.pc-thumb{display:block;overflow:hidden;background:var(--line)}
.sd-img{aspect-ratio:140/87;border-radius:6px}
.sd-img img,.sd-img video,.prd-img img,.prd-img video,.pc-thumb img,.pc-thumb video,.noimg{display:block;width:100%;height:100%;object-fit:cover}
.sd h3,.prd h3,.pc h3{margin:0;color:var(--text)}
.sd h3{margin-bottom:6px;font-size:14px;line-height:1.35;font-weight:700;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.sd h3 a,.prd h3 a,.pc h3 a{color:inherit;text-decoration:none}
.sd h3 a:hover,.prd h3 a:hover,.pc h3 a:hover{color:var(--accent)}

/* --- Sản phẩm được quan tâm (nút mua theo link affiliate từng sản phẩm) --- */
.prd-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}
.prd{display:flex;flex-direction:column;gap:8px;padding:8px;background:var(--card);border:1px solid var(--line);border-radius:8px}
.prd-img{aspect-ratio:1;border-radius:4px}
.prd h3{font-size:13px;line-height:1.35;font-weight:700;display:-webkit-box;-webkit-line-clamp:4;-webkit-box-orient:vertical;overflow:hidden}
.btn-shop{display:block;margin-top:auto;padding:9px 8px;border-radius:4px;background:var(--buy);color:#fff;font-size:12.5px;font-weight:700;text-align:center;text-decoration:none}
.btn-shop:hover{filter:brightness(1.08)}
.prd h3{margin-bottom:4px}

/* --- Bài viết mới nhất / danh sách bài --- */
.latest{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}

/* --- Trang chủ: bài viết bên trái, sản phẩm được quan tâm bên phải --- */
.home-grid{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:24px;align-items:start}
.home-main .latest{grid-template-columns:repeat(4,minmax(0,1fr))}
@media(max-width:1100px){.home-main .latest{grid-template-columns:repeat(3,minmax(0,1fr))}}
.side-prd{display:flex;flex-direction:column;gap:10px}
.side-prd .prd{display:grid;grid-template-columns:76px minmax(0,1fr);grid-template-areas:"img name" "img btn";gap:4px 10px;align-items:start}
.side-prd .prd-img{grid-area:img;aspect-ratio:1}
.side-prd .prd h3{grid-area:name;margin:0;font-size:13px;-webkit-line-clamp:3}
.side-prd .btn-shop{grid-area:btn;align-self:end;margin-top:0;padding:7px 6px;font-size:12px}
.pc{display:flex;flex-direction:column;overflow:hidden;background:var(--card);border:1px solid var(--line);border-radius:6px}
.pc-thumb{aspect-ratio:16/10}
.pc-body{display:flex;flex-direction:column;flex:1;gap:6px;padding:10px 12px 12px}
.pc-tags{display:flex;align-items:center;gap:8px}
.chip{display:inline-block;padding:2px 9px;border-radius:99px;background:color-mix(in srgb,var(--accent) 12%,transparent);color:var(--accent);font-size:11px;font-weight:600;line-height:1.5;text-decoration:none}
.kind{font-size:11px;color:var(--muted)}
.pc-tags .score{margin-left:auto;padding:0 7px;font-size:11px}
.pc h3{font-size:14px;line-height:1.35;font-weight:700}
.pc p{margin:0;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;font-size:12.5px;line-height:1.5;color:var(--muted)}
.pc-meta{display:flex;gap:6px;margin-top:auto;padding-top:2px;font-size:11px;color:var(--muted)}

/* --- Nút mua nổi + nút lên đầu trang: đi theo màn hình khi cuộn --- */
.fab-wrap{position:fixed;right:14px;bottom:14px;z-index:60;display:flex;flex-direction:column-reverse;align-items:flex-end;gap:10px;pointer-events:none}
.fab-wrap>*{pointer-events:auto}
.to-top,.buy-fab{opacity:0;visibility:hidden;transform:translateY(12px);transition:opacity .25s,transform .25s,visibility .25s}
.to-top.show,.buy-fab.show{opacity:1;visibility:visible;transform:none}
.to-top{display:grid;place-items:center;width:38px;height:38px;padding:0;border:0;border-radius:50%;background:var(--accent);color:#fff;cursor:pointer;box-shadow:0 4px 12px rgba(0,0,0,.25)}
.to-top:hover{filter:brightness(1.1)}
.buy-fab{display:inline-flex;align-items:center;gap:8px;padding:12px 18px;border-radius:99px;background:var(--buy);color:#fff;font-size:14px;font-weight:700;line-height:1;text-decoration:none;box-shadow:0 6px 18px rgba(238,77,45,.4)}
.buy-fab:hover{filter:brightness(1.08)}
.zalo-fab{right:auto;left:16px}
@media(prefers-reduced-motion:reduce){.to-top,.buy-fab{transition:none}}

/* --- Điện thoại / máy tính bảng --- */
@media(max-width:900px){
    .hdr-row{flex-wrap:wrap;gap:8px 12px}
    .hdr-row .brand{order:1}
    .nav-toggle{display:flex;order:2;margin-left:auto;border-color:rgba(255,255,255,.55)}
    .nav-toggle span{background:#fff}
    .hdr-row .search{order:3;flex:1 0 100%;margin:0}
    .navbar{display:none}
    .site-header.open .navbar{display:block}
    .nav-in{display:block}
    .cats>a,.cats .dd>a{display:flex;padding:12px 4px;font-size:16px;border-bottom:1px solid var(--line)}
    .cats .dd>a{flex:1}
    .prd-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
    .home-grid{grid-template-columns:minmax(0,1fr)}
    .home-side{order:-1}
    .side-prd{display:grid;grid-template-columns:repeat(3,minmax(0,1fr))}
    .side-prd .prd{display:flex;flex-direction:column;gap:8px}
    .side-prd .prd h3{font-size:13px;-webkit-line-clamp:4}
    /* thẻ đã chuyển sang cột: nút phải kéo full chiều ngang và dính đáy thẻ (align-self:end của bố cục desktop làm nút co lại, lệch phải) */
    .side-prd .btn-shop{grid-area:auto;align-self:stretch;margin-top:auto;padding:10px 8px;font-size:12.5px;width:100%;box-sizing:border-box}
}
@media(max-width:700px){
    .feat{grid-template-columns:1fr}
    .hero-card{aspect-ratio:auto;min-height:250px}
    .hero-txt strong{font-size:18px}
    .prd-grid,.side-prd{grid-template-columns:repeat(2,minmax(0,1fr))}
    .latest,.home-main .latest{grid-template-columns:repeat(2,minmax(0,1fr))}
    .sec-title{font-size:18px}
    .fab-wrap{right:10px;bottom:10px}
    .zalo-fab{left:12px}
}
@media(max-width:480px){
    .latest,.home-main .latest{grid-template-columns:1fr}
    .wrap{padding-left:14px;padding-right:14px}
    .buy-fab span{max-width:150px}
}
/* Tin tức */
.news-list{display:flex;flex-direction:column;gap:18px}
.news-item{display:flex;gap:16px;padding-bottom:18px;border-bottom:1px solid var(--line)}
.news-thumb{flex:0 0 200px}.news-thumb img{width:200px;height:125px;object-fit:cover;border-radius:8px;display:block}
.news-body{min-width:0}.news-body h2{font-size:19px;line-height:1.35;margin:0 0 6px}.news-body h2 a{text-decoration:none;color:var(--text)}.news-body h2 a:hover{color:var(--accent)}
.news-body p{margin:0 0 6px;color:var(--text)}
.news-lead{font-size:18px;font-weight:600;line-height:1.5}
.news-cover{width:100%;border-radius:8px}
.news-source{margin-top:24px;padding:12px 14px;border:1px solid var(--line);border-radius:8px;background:var(--navbg);font-size:14px;color:var(--muted)}
.news-more ul{padding-left:18px}.news-more li{margin:6px 0}
@media(max-width:600px){.news-item{flex-direction:column}.news-thumb,.news-thumb img{width:100%;flex:none;height:auto}}

/* Kết luận nhanh, mục lục, thông báo affiliate */
.glance{grid-template-columns:1fr 1fr}
@media(max-width:640px){.glance{grid-template-columns:1fr}}
.verdict{margin:24px 0;padding:0 18px 18px;border:2px solid var(--accent);border-radius:12px;background:var(--card)}
.verdict .sec{margin-top:16px}
.verdict-score{margin:0 0 10px;font-size:18px}
.verdict .cta{margin-top:14px;display:inline-block}
.toc{margin:20px 0;padding:12px 18px;border:1px solid var(--line);border-radius:10px;background:var(--card)}
.toc ol{margin:8px 0 0;padding-left:22px}.toc li{margin:4px 0}
.content h2[id]{scroll-margin-top:80px}
.disclosure{font-size:13px;color:var(--muted);font-style:italic;margin:12px 0}

/* Trang chủ nhiều khối, thanh sắp xếp */
.latest.row4{grid-template-columns:repeat(4,minmax(0,1fr))}
@media(max-width:1100px){.latest.row4{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media(max-width:700px){.latest.row4{grid-template-columns:repeat(2,minmax(0,1fr))}}
.sortbar{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin:0 0 14px;font-size:14px}
.sortbar a{padding:4px 12px;border:1px solid var(--line);border-radius:999px;text-decoration:none;color:var(--text);background:var(--card)}
.sortbar a.on{background:var(--accent);border-color:var(--accent);color:#fff}

.author-box{margin:28px 0 8px;padding:14px 18px;border:1px solid var(--line);border-radius:10px;background:var(--card)}
.author-box p{margin:6px 0 0;color:var(--muted)}

/* Trang ưu đãi */
.deals{display:grid;gap:12px;margin:16px 0}
.deal{display:flex;gap:16px;justify-content:space-between;align-items:center;padding:14px 18px;border:1px solid var(--line);border-radius:10px;background:var(--card)}
.deal h2{margin:6px 0;font-size:18px}.deal p{margin:4px 0}
.deal-act{display:flex;flex-direction:column;gap:8px;align-items:stretch;min-width:170px}
.deal-code{padding:8px 12px;border:2px dashed var(--accent);border-radius:8px;background:transparent;color:var(--text);font:inherit;font-weight:700;cursor:pointer;display:flex;justify-content:space-between;gap:10px}
.deal-code small{font-weight:400;color:var(--muted)}
@media(max-width:600px){.deal{flex-direction:column;align-items:stretch}.deal-act{min-width:0}}

/* Câu hỏi thường gặp */
.faq details{border:1px solid var(--line,#e5e7eb);border-radius:10px;margin:.5rem 0;padding:.65rem .9rem;background:var(--card,#fff)}
.faq summary{cursor:pointer;font-weight:600}
.faq details[open] summary{margin-bottom:.4rem}
.faq p{margin:0;line-height:1.6}