/* KOLBEN – kolben.com.vn (web tĩnh 2026). Màu & bố cục bám web cũ: đỏ KOLBEN + navy, chữ hoa giãn cách. */
@font-face{font-family:'Be Vietnam Pro';font-style:normal;font-weight:400;font-display:swap;src:url(fonts/bvp-latin-400.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:400;font-display:swap;src:url(fonts/bvp-vietnamese-400.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/bvp-latin-600.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/bvp-vietnamese-600.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/bvp-latin-700.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/bvp-vietnamese-700.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:800;font-display:swap;src:url(fonts/bvp-latin-800.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:800;font-display:swap;src:url(fonts/bvp-vietnamese-800.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}
:root{
  --red:#e3141c; --red-d:#b80d14; --red-50:#fdecec;
  --navy:#0f1a28; --navy-2:#17263a; --ink:#1d232b; --mute:#5b6573; --line:#e3e6ea;
  --bg:#ffffff; --bg-2:#f4f5f7; --ok:#14804a; --warn:#fff3c4;
  --r:6px; --wrap:1200px; --sh:0 2px 10px rgba(15,26,40,.08); --sh2:0 8px 28px rgba(15,26,40,.14);
  --f:"Be Vietnam Pro",system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;font:15px/1.6 var(--f);color:var(--ink);background:var(--bg)}
img{max-width:100%;height:auto;display:block}
a{color:var(--red);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3,h4{line-height:1.25;margin:0 0 .5em;color:var(--navy)}
h1{font-size:clamp(24px,3.2vw,34px);font-weight:800}
h2{font-size:clamp(20px,2.4vw,26px);font-weight:700}
h3{font-size:18px;font-weight:700}
p{margin:0 0 1em}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 16px}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
.skip{position:absolute;left:-999px;top:0;background:#fff;padding:8px 12px;z-index:99}.skip:focus{left:8px}

/* ---------- Thanh trên (navy – như web cũ) ---------- */
.topbar{background:var(--navy);color:#cfd6df;font-size:13px}
.topbar .wrap{display:flex;align-items:center;gap:18px;min-height:40px}
.topbar a{color:#fff}
.topbar .tb-l{display:flex;gap:16px;flex-wrap:wrap;align-items:center}
.topbar .tb-l span{white-space:nowrap}
.topbar .tb-r{margin-left:auto;position:relative;width:min(360px,46vw)}
.finder-in{width:100%;height:30px;border-radius:15px;border:1px solid #47566b;background:#0b1420;color:#fff;padding:0 34px 0 14px;font:inherit;font-size:13px}
.finder-in::placeholder{color:#93a0b1}
.finder-in:focus{outline:2px solid var(--red);border-color:transparent}
.finder-ic{position:absolute;right:10px;top:50%;transform:translateY(-50%);width:16px;height:16px;color:var(--red);pointer-events:none}
.fd{position:absolute;right:0;top:calc(100% + 6px);width:min(520px,92vw);background:#fff;color:var(--ink);border-radius:var(--r);box-shadow:var(--sh2);z-index:60;max-height:70vh;overflow:auto;display:none}
.fd.on{display:block}
.fd .fd-h{font-size:12px;color:var(--mute);padding:8px 12px;border-bottom:1px solid var(--line)}
.fd a.fr{display:grid;grid-template-columns:auto 1fr auto;gap:10px;align-items:center;padding:9px 12px;border-bottom:1px solid var(--line);color:var(--ink)}
.fd a.fr:hover,.fd a.fr.act{background:var(--red-50);text-decoration:none}
.fr b{color:var(--navy)}
.fr .tag{font-size:11px;font-weight:700;color:#fff;background:var(--navy-2);border-radius:3px;padding:1px 6px}
.fr .pr{font-size:12px;color:var(--ok);white-space:nowrap}
.fr small{display:block;color:var(--mute);font-size:12px}
.fd .fd-f{padding:10px 12px;font-size:13px;background:var(--bg-2)}

/* ---------- Header + menu 8 mục (giữ thứ tự web cũ) ---------- */
.hdr{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50}
.hdr .wrap{display:flex;align-items:center;gap:24px;min-height:74px}
.logo img{width:150px;height:auto}
.nav{margin-left:auto}
.nav>ul{list-style:none;margin:0;padding:0;display:flex;gap:2px;align-items:center}
.nav>ul>li{position:relative}
.nav>ul>li>a{display:block;padding:26px 10px;font-size:12.5px;font-weight:700;letter-spacing:.04em;text-transform:uppercase;color:var(--navy);white-space:nowrap;border-bottom:3px solid transparent}
.nav>ul>li>a:hover,.nav>ul>li>a[aria-current]{color:var(--red);text-decoration:none;border-bottom-color:var(--red)}
.nav .cta-mini{background:var(--red);color:#fff!important;border-radius:4px;padding:9px 12px!important;margin-left:6px;border:0!important}
.nav .cta-mini:hover{background:var(--red-d)}
.mega{position:absolute;left:50%;transform:translateX(-50%);top:100%;width:min(940px,96vw);background:#fff;box-shadow:var(--sh2);border-top:3px solid var(--red);padding:20px 22px;display:none;grid-template-columns:repeat(3,1fr);gap:8px 26px}
.nav li:hover>.mega,.nav li:focus-within>.mega{display:grid}
.mega h4{font-size:13px;text-transform:uppercase;letter-spacing:.05em;margin:6px 0 4px}
.mega h4 a{color:var(--navy)}
.mega h4 small{display:block;font-weight:500;text-transform:none;letter-spacing:0;color:var(--mute);font-size:12px}
.mega ul{list-style:none;padding:0;margin:0 0 6px}
.mega ul a{display:block;font-size:13.5px;color:var(--ink);padding:3px 0}
.mega ul a:hover{color:var(--red)}
.mega .new{font-size:10px;font-weight:800;color:#fff;background:var(--red);border-radius:3px;padding:0 5px;margin-left:4px;vertical-align:2px}
.burger{display:none;margin-left:auto;background:none;border:0;width:44px;height:44px;cursor:pointer}
.burger span,.burger span::before,.burger span::after{display:block;width:24px;height:2px;background:var(--navy);position:relative;margin:auto;content:""}
.burger span::before{position:absolute;top:-7px}.burger span::after{position:absolute;top:7px}

/* ---------- Khối chung ---------- */
.sec{padding:52px 0}
.sec.alt{background:var(--bg-2)}
.ttl{text-align:center;text-transform:uppercase;letter-spacing:.14em;font-size:18px;font-weight:800;color:var(--navy);margin:0 0 30px}
.ttl::after{content:"";display:block;width:64px;height:2px;background:var(--red);margin:10px auto 0}
.ttl+.lead{text-align:center;max-width:720px;margin:-14px auto 28px;color:var(--mute)}
.btn{display:inline-flex;align-items:center;gap:8px;padding:11px 18px;border-radius:4px;font-weight:700;font-size:14px;border:2px solid var(--red);background:var(--red);color:#fff;cursor:pointer;line-height:1.2}
.btn:hover{background:var(--red-d);border-color:var(--red-d);text-decoration:none}
.btn.o{background:#fff;color:var(--red)}
.btn.o:hover{background:var(--red-50)}
.btn.n{background:var(--navy);border-color:var(--navy)}
.btn.z{background:#0068ff;border-color:#0068ff}
.btn.z:hover{background:#0052cc;border-color:#0052cc}
.btn svg{width:18px;height:18px;flex:none}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 18px;padding:0;list-style:none}
.chips li{background:var(--bg-2);border:1px solid var(--line);border-radius:4px;padding:6px 10px;font-size:13px}
.chips b{display:block;font-size:15px;color:var(--navy)}
.ph{background:var(--warn);outline:1px dashed #c9a400;border-radius:2px} /* chỉ có ở bản xem thử: thông tin chờ xác nhận */
.ph-off .ph{background:none;outline:0}

/* ---------- Trang chủ ---------- */
.slider{position:relative;background:#e9efe4;overflow:hidden}
.slides{display:flex;overflow-x:auto;scroll-snap-type:x mandatory;scrollbar-width:none}
.slides::-webkit-scrollbar{display:none}
.slide{flex:0 0 100%;scroll-snap-align:start;aspect-ratio:1600/725;max-height:560px;position:relative}
.slide img{width:100%;height:100%;object-fit:cover}
.sl-btn{position:absolute;top:50%;transform:translateY(-50%);width:34px;height:60px;background:var(--red);color:#fff;border:0;cursor:pointer;font-size:22px;opacity:.9}
.sl-prev{left:0}.sl-next{right:0}
.sl-dots{position:absolute;left:0;right:0;bottom:62px;display:flex;justify-content:center;gap:8px}
.sl-dots button{width:10px;height:10px;border-radius:50%;border:2px solid #fff;background:transparent;padding:0;cursor:pointer}
.sl-dots button[aria-current=true]{background:#fff}
.hero-h1{position:absolute;left:0;right:0;top:0;padding:14px 0;background:linear-gradient(rgba(15,26,40,.55),transparent);color:#fff}
.hero-h1 h1{color:#fff;font-size:clamp(15px,1.8vw,20px);font-weight:600;margin:0;text-shadow:0 1px 2px rgba(0,0,0,.4)}
.finderbar{position:relative;z-index:5;margin-top:-44px}
.finderbar .box{background:#fff;border-radius:var(--r);box-shadow:var(--sh2);padding:18px 20px;display:grid;grid-template-columns:auto 1fr auto;gap:16px;align-items:center;border-top:3px solid var(--red)}
.finderbar label{font-weight:800;color:var(--navy);text-transform:uppercase;font-size:13px;letter-spacing:.06em;line-height:1.3}
.finderbar label small{display:block;font-weight:500;text-transform:none;letter-spacing:0;color:var(--mute);font-size:12.5px}
.finderbar .fwrap{position:relative}
.finderbar input{width:100%;height:46px;border:2px solid var(--line);border-radius:4px;padding:0 14px;font:inherit;font-size:16px}
.finderbar input:focus{outline:0;border-color:var(--red)}
.finderbar .fd{left:0;right:auto;width:100%}
.finderbar .eg{grid-column:2/4;font-size:12.5px;color:var(--mute);margin-top:-8px}
.finderbar .eg button{border:0;background:var(--bg-2);border-radius:3px;padding:2px 8px;margin:2px 3px;font:inherit;font-size:12.5px;cursor:pointer;color:var(--navy)}
.trust{padding:26px 0 0}
.trust ul{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.trust li{display:flex;gap:12px;align-items:center;padding:12px 6px}
.trust svg{width:38px;height:38px;color:var(--red);flex:none}
.trust b{display:block;color:var(--navy);font-size:15px}
.trust span{font-size:13px;color:var(--mute)}
.cats{display:grid;grid-template-columns:repeat(5,1fr);gap:18px}
.cat{background:#fff;border-radius:var(--r);overflow:hidden;box-shadow:var(--sh);display:flex;flex-direction:column;color:var(--ink);transition:transform .15s,box-shadow .15s}
.cat:hover{transform:translateY(-3px);box-shadow:var(--sh2);text-decoration:none}
.cat .im{aspect-ratio:4/3;background:#eef0f2;overflow:hidden}
.cat .im img{width:100%;height:100%;object-fit:cover}
.cat .tx{padding:10px 12px 12px;border-top:3px solid var(--red)}
.cat b{display:block;color:var(--red);font-size:14.5px}
.cat small{color:var(--mute);font-size:12.5px;display:block}
.cat .nw{position:absolute;margin:8px;background:var(--red);color:#fff;font-size:11px;font-weight:800;border-radius:3px;padding:1px 7px}
.cnc{background:var(--navy);color:#dbe2ea;padding:0}
.cnc .wrap{display:grid;grid-template-columns:1.05fr 1fr;gap:0;align-items:stretch}
.cnc .tx{padding:46px 40px 46px 0}
.cnc h2{color:#fff}
.cnc ol{counter-reset:s;list-style:none;padding:0;margin:18px 0 24px;display:grid;gap:10px}
.cnc ol li{counter-increment:s;display:flex;gap:12px;align-items:flex-start}
.cnc ol li::before{content:counter(s);flex:none;width:26px;height:26px;border-radius:50%;background:var(--red);color:#fff;font-weight:800;display:grid;place-items:center;font-size:13px}
.cnc .im{position:relative;min-height:320px}
.cnc .im img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.cnc .btns{display:flex;flex-wrap:wrap;gap:10px}
.info3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.info3 .bx{background:#fff;border:1px solid #ddd;border-right:3px solid var(--red);border-bottom:3px solid var(--red);padding:20px 22px;font-size:14px}
.info3 h3{font-size:15px;letter-spacing:.06em;text-transform:uppercase}
.info3 ol{padding-left:20px;margin:0}
.info3 ol li{margin-bottom:8px}
.dl{list-style:none;padding:0;margin:0}
.dl li{border-bottom:1px dashed var(--line)}
.dl a{display:flex;gap:10px;align-items:center;padding:8px 0;color:var(--ink);font-weight:600}
.dl a:hover{color:var(--red)}
.dl svg{width:22px;height:22px;color:var(--red);flex:none}
.dl small{color:var(--mute);font-weight:400;margin-left:auto;white-space:nowrap}
.vid{display:grid;grid-template-columns:1.4fr 1fr;gap:28px;align-items:center}
.yt{position:relative;aspect-ratio:16/9;background:#000;border-radius:var(--r);overflow:hidden;cursor:pointer}
.yt img{width:100%;height:100%;object-fit:cover;opacity:.85}
.yt button{position:absolute;inset:0;margin:auto;width:72px;height:50px;border:0;border-radius:12px;background:var(--red);color:#fff;font-size:22px;cursor:pointer}
.yt iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.news{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.nw-c{border:1px solid #f0b8ba;border-radius:4px;padding:16px 18px;background:#fff;display:flex;flex-direction:column}
.nw-c h3{font-size:14.5px;text-transform:uppercase}
.nw-c time{color:var(--red);font-size:12.5px;margin-bottom:8px}
.nw-c p{font-size:14px;color:var(--mute);flex:1}
.zband{background:var(--red);color:#fff;padding:22px 0}
.zband .wrap{display:flex;align-items:center;gap:20px;flex-wrap:wrap;justify-content:center}
.zband b{font-size:18px;letter-spacing:.04em;text-transform:uppercase}
.zband .btn{background:#fff;color:var(--red);border-color:#fff}
.zband .btn.z{background:#0068ff;color:#fff;border-color:#fff}
.mapc{display:grid;grid-template-columns:360px 1fr;min-height:380px}
.card{background:#fff;box-shadow:4px 0 14px rgba(0,0,0,.1);z-index:1}
.card .hd{background:linear-gradient(135deg,#2f6fe0,#3f86f0);color:#fff;padding:22px;display:flex;align-items:center;gap:14px;justify-content:space-between}
.card .hd img{width:130px;background:#fff;border-radius:4px;padding:6px}
.card .hd b{display:block;font-size:18px}.card .hd small{font-weight:700}
.card ul{list-style:none;margin:0;padding:16px 22px;font-size:14px}
.card li{display:flex;gap:12px;padding:7px 0;align-items:flex-start}
.card svg{width:18px;height:18px;color:#2f6fe0;flex:none;margin-top:3px}
.map{position:relative;background:#e8ecef repeating-linear-gradient(45deg,#e8ecef 0 22px,#e1e6ea 22px 44px);display:grid;place-items:center}
.map button{position:absolute;inset:0;margin:auto;width:max-content;height:max-content}
.map iframe{width:100%;height:100%;border:0;min-height:380px}

/* ---------- Footer (navy, 3 cột như web cũ) ---------- */
.ftr{background:var(--navy);color:#b9c3cf;font-size:14px}
.ftr .wrap{display:grid;grid-template-columns:repeat(4,1fr);gap:28px;padding-top:40px;padding-bottom:30px}
.ftr h3{color:#fff;font-size:13.5px;text-transform:uppercase;letter-spacing:.06em;border-bottom:1px solid #2a3a50;padding-bottom:12px;display:flex;gap:8px;align-items:center}
.ftr h3::before{content:"›";display:inline-grid;place-items:center;width:18px;height:18px;border-radius:50%;background:var(--red);color:#fff;font-size:13px}
.ftr ul{list-style:none;padding:0;margin:0}
.ftr li{padding:4px 0}
.ftr a{color:#d9e0e8}
.ftr a:hover{color:#fff}
.soc{display:flex;gap:10px;margin-top:6px}
.soc a{width:38px;height:38px;border-radius:4px;background:#000;display:grid;place-items:center}
.soc svg{width:18px;height:18px;color:#fff}
.copy{background:#0a121c;color:#8794a5;font-size:12.5px;padding:12px 0}
.copy .wrap{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}
.fab{position:fixed;right:14px;bottom:14px;display:flex;flex-direction:column;gap:10px;z-index:70}
.fab a{width:52px;height:52px;border-radius:50%;display:grid;place-items:center;box-shadow:var(--sh2);color:#fff;font-weight:800;font-size:13px}
.fab .fz{background:#0068ff}.fab .fp{background:var(--red)}
.fab svg{width:24px;height:24px}

/* ---------- Trang danh mục / sản phẩm ---------- */
.crumb{background:var(--bg-2);font-size:13px;border-bottom:1px solid var(--line)}
.crumb ol{list-style:none;margin:0;padding:11px 0;display:flex;flex-wrap:wrap;gap:6px}
.crumb li+li::before{content:"/";color:#aab2bd;margin-right:6px}
.crumb a{color:var(--navy);font-weight:600}
.crumb li:last-child{color:var(--red);font-weight:600}
.layout{display:grid;grid-template-columns:250px 1fr;gap:30px;padding:28px 16px 50px}
.side .sbx{border:1px solid var(--line);border-radius:var(--r);overflow:hidden;position:sticky;top:90px}
.side h2{background:var(--red);color:#fff;font-size:14px;margin:0;padding:12px 16px}
.side ul{list-style:none;margin:0;padding:6px 14px}
.side li{border-bottom:1px solid var(--line)}
.side li:last-child{border:0}
.side a{display:block;padding:8px 0;color:var(--ink);font-size:13.5px}
.side a[aria-current]{color:var(--red);font-weight:700}
.side ul ul{padding:0 0 6px 14px}
.side ul ul li{border:0}
.side ul ul a{padding:4px 0;font-size:13px}
.side .help{padding:14px 16px;background:var(--bg-2);font-size:13px;border-top:1px solid var(--line)}
.intro{display:grid;grid-template-columns:1fr 340px;gap:26px;align-items:start;margin-bottom:28px}
.intro img{border-radius:var(--r)}
.subs{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:18px;margin:0 0 34px}
.sub{border:1px solid var(--line);border-radius:var(--r);overflow:hidden;background:#fff;display:flex;flex-direction:column;color:var(--ink)}
.sub:hover{box-shadow:var(--sh2);text-decoration:none}
.sub .im{aspect-ratio:3/2;background:#f2f3f5}
.sub .im img{width:100%;height:100%;object-fit:cover}
.sub .tx{padding:12px 14px 14px;display:flex;flex-direction:column;flex:1}
.sub h3{font-size:16px;margin:0 0 4px;color:var(--navy)}
.sub p{font-size:13.5px;color:var(--mute);margin:0 0 10px;flex:1}
.codes{display:flex;flex-wrap:wrap;gap:5px}
.codes span{font-size:12px;font-weight:700;background:var(--red-50);color:var(--red-d);border-radius:3px;padding:1px 7px}
.tbl-w{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r);margin:0 0 10px}
table.t{width:100%;border-collapse:collapse;font-size:14px;background:#fff}
.t th{background:var(--navy);color:#fff;text-align:left;font-weight:600;padding:9px 10px;white-space:nowrap;position:sticky;top:0}
.t td{padding:8px 10px;border-top:1px solid var(--line);vertical-align:top}
.t tbody tr:nth-child(even){background:#fafbfc}
.t tbody tr:hover{background:var(--red-50)}
.t td.n{text-align:right;font-variant-numeric:tabular-nums;white-space:nowrap}
.t a.code{font-weight:800}
.note{font-size:12.5px;color:var(--mute)}
.howto{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:center;background:var(--bg-2);border-radius:var(--r);padding:22px;margin:30px 0}
.faq details{border-bottom:1px solid var(--line);padding:12px 0}
.faq summary{cursor:pointer;font-weight:700;color:var(--navy);list-style:none;display:flex;justify-content:space-between;gap:12px}
.faq summary::after{content:"+";color:var(--red);font-size:20px;line-height:1}
.faq details[open] summary::after{content:"–"}
.faq details p{margin:10px 0 0;color:#333}
.ctab{background:var(--navy);color:#dbe2ea;border-radius:var(--r);padding:24px 26px;display:flex;gap:18px;align-items:center;justify-content:space-between;flex-wrap:wrap;margin-top:34px}
.ctab h2{color:#fff;margin:0 0 4px;font-size:20px}
.ctab p{margin:0}
.ctab .btns{display:flex;gap:10px;flex-wrap:wrap}

/* Sản phẩm */
.p-top{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);gap:34px;margin-bottom:26px}
.gal .main{aspect-ratio:1;background:#f1f3f6;border-radius:var(--r);overflow:hidden;border:1px solid var(--line)}
.gal .main img{width:100%;height:100%;object-fit:contain}
.gal .th{display:grid;grid-template-columns:repeat(6,1fr);gap:8px;margin-top:10px}
.gal .th button{padding:0;border:2px solid var(--line);border-radius:4px;overflow:hidden;cursor:pointer;aspect-ratio:1;background:#f1f3f6}
.gal .th button[aria-current=true]{border-color:var(--red)}
.gal .th img{width:100%;height:100%;object-fit:cover}
.p-info .eyb{font-size:12.5px;font-weight:700;text-transform:uppercase;letter-spacing:.08em;color:var(--red);margin-bottom:6px}
.p-info h1{margin-bottom:8px}
.p-info .sum{font-size:16px;color:#333}
.p-info ul.ben{padding:0;list-style:none;margin:0 0 18px}
.p-info ul.ben li{padding:4px 0 4px 26px;position:relative}
.p-info ul.ben li::before{content:"";position:absolute;left:0;top:9px;width:16px;height:16px;border-radius:50%;background:var(--red) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M4 8.5l2.5 2.5L12 5.5' stroke='%23fff' stroke-width='2' fill='none'/%3E%3C/svg%3E") center/12px no-repeat}
.p-info .btns{display:flex;flex-wrap:wrap;gap:10px;margin:6px 0 14px}
.p-info .stock{font-size:13.5px;color:var(--ok);font-weight:600}
.subnav{position:sticky;top:74px;z-index:20;background:#fff;border-bottom:2px solid var(--line);margin:0 0 24px;overflow-x:auto;white-space:nowrap}
.subnav a{display:inline-block;padding:12px 14px;font-weight:700;font-size:13.5px;color:var(--navy);border-bottom:3px solid transparent;margin-bottom:-2px}
.subnav a:hover,.subnav a.on{color:var(--red);border-bottom-color:var(--red);text-decoration:none}
.psec{padding:6px 0 26px;scroll-margin-top:140px}
.two{display:grid;grid-template-columns:1fr 1fr;gap:26px;align-items:start}
.flt{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin:0 0 12px}
.flt input{height:38px;border:1px solid #c8ced6;border-radius:4px;padding:0 10px;font:inherit;width:110px}
.flt input:focus{outline:0;border-color:var(--red)}
.flt .cnt{font-size:13px;color:var(--mute)}
.instock{color:var(--ok);font-weight:700;font-size:12.5px}
.buy{font-weight:700;font-size:13px;white-space:nowrap}
.apps{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:12px;list-style:none;padding:0;margin:0 0 14px}
.apps li{border:1px solid var(--line);border-radius:var(--r);padding:12px;text-align:center;font-weight:600;color:var(--navy);font-size:14px}
.apps svg{width:34px;height:34px;color:var(--red);display:block;margin:0 auto 6px}
.rel{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}

@media (max-width:1100px){
  .nav>ul>li>a{padding:26px 7px;font-size:11.5px}
  .cats{grid-template-columns:repeat(3,1fr)}
}
@media (max-width:960px){
  .burger{display:block}
  .nav{position:fixed;inset:74px 0 0 0;background:#fff;overflow:auto;display:none;margin:0;border-top:1px solid var(--line)}
  .nav.open{display:block}
  .nav>ul{flex-direction:column;align-items:stretch;padding:8px 16px 40px}
  .nav>ul>li>a{padding:14px 4px;border-bottom:1px solid var(--line);font-size:14px}
  .mega{position:static;transform:none;width:auto;display:grid;grid-template-columns:1fr 1fr;box-shadow:none;border:0;padding:8px 4px 14px}
  .nav .cta-mini{margin:12px 0 0;text-align:center}
  .topbar .tb-l .hide-m{display:none}
  .trust ul{grid-template-columns:1fr 1fr}
  .cnc .wrap{grid-template-columns:1fr}.cnc .tx{padding:36px 0}.cnc .im{min-height:240px;margin:0 -16px}
  .info3,.news{grid-template-columns:1fr}
  .vid{grid-template-columns:1fr}
  .mapc{grid-template-columns:1fr}
  .ftr .wrap{grid-template-columns:1fr 1fr}
  .layout{grid-template-columns:1fr}
  .side{order:2}
  .intro,.p-top,.two,.howto{grid-template-columns:1fr}
  .rel{grid-template-columns:1fr 1fr}
  .finderbar .box{grid-template-columns:1fr}
  .finderbar .eg{grid-column:auto;margin-top:0}
  .subnav{top:74px}
}
@media (max-width:600px){
  body{font-size:15px}
  .topbar .tb-r{width:46vw}
  .cats{grid-template-columns:1fr 1fr;gap:12px}
  .sec{padding:38px 0}
  .slide{aspect-ratio:1600/727}
  .sl-dots{display:none}
  .sl-btn{width:26px;height:44px;font-size:18px}
  .hero-h1{position:static;background:var(--navy);padding:10px 0 54px}
  .hero-h1 h1{font-size:14px}
  .trust li{flex-direction:column;align-items:flex-start;gap:6px}
  .fab a{width:46px;height:46px}
  .ftr .wrap{grid-template-columns:1fr}
  .mega{grid-template-columns:1fr}
  .logo img{width:124px}
  .hdr .wrap{min-height:62px}
  .nav{inset:62px 0 0 0}
  .subnav{top:62px}
}
@media print{.topbar,.hdr,.fab,.ftr,.side,.subnav,.zband{display:none}}
p a>svg,.dl a>svg{width:20px;height:20px;vertical-align:-5px;margin-right:4px;flex:none}
.sub .im{overflow:hidden}
/* ---------- bổ sung trang con ---------- */
.page-main{padding-top:26px;padding-bottom:50px}
.lead-l{font-size:16.5px;color:#333;max-width:820px}
.sub h3 small{display:block;font-weight:500;font-size:13px;color:var(--mute)}
.yt .play{position:absolute;inset:0;margin:auto;width:72px;height:50px;border-radius:12px;background:var(--red);color:#fff;font-size:22px;display:grid;place-items:center}
.yt:focus-visible{outline:3px solid var(--red);outline-offset:3px}
.figs{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:14px;margin:18px 0 26px}
.figs figure{margin:0;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;background:#fff}
.figs img{width:100%;aspect-ratio:4/3;object-fit:cover}
.figs figcaption{font-size:12.5px;color:var(--mute);padding:6px 10px}
.apps.brands li{font-weight:800;letter-spacing:.06em}
.gallery{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:12px;margin:0 0 26px}
.gallery a{display:block;border-radius:var(--r);overflow:hidden;background:#eee}
.gallery img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .2s}
.gallery a:hover img{transform:scale(1.04)}
dialog.lb{border:0;padding:0;background:transparent;max-width:94vw;max-height:92vh}
dialog.lb::backdrop{background:rgba(5,10,18,.86)}
dialog.lb img{max-width:94vw;max-height:88vh;width:auto;height:auto;border-radius:4px}
dialog.lb button{position:fixed;top:12px;right:16px;width:44px;height:44px;border-radius:50%;border:0;background:#fff;font-size:26px;cursor:pointer}
.finder-page{position:relative;max-width:880px}
.big-in{width:100%;height:56px;border:2px solid var(--line);border-radius:6px;padding:0 16px;font:inherit;font-size:18px}
.big-in:focus{outline:0;border-color:var(--red)}
.finder-page .eg{font-size:13px;color:var(--mute);margin:8px 0}
.finder-page .eg button,.eg button{border:0;background:var(--bg-2);border-radius:3px;padding:3px 9px;margin:2px 3px;font:inherit;font-size:13px;cursor:pointer;color:var(--navy)}
.fd.inline{position:static;display:block;width:100%;box-shadow:none;border:1px solid var(--line);max-height:none;margin-top:10px}
.steps{padding-left:22px}.steps li{margin-bottom:8px}
.vmv{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin:20px 0}
.vmv>div{background:var(--bg-2);border-left:4px solid var(--red);padding:14px 18px;border-radius:4px}
.vmv h3{margin-bottom:4px}.vmv p{margin:0}
.clist{list-style:none;padding:0;margin:0 0 16px}
.clist li{display:flex;gap:14px;padding:10px 0;border-bottom:1px solid var(--line)}
.clist svg{width:22px;height:22px;color:var(--red);flex:none;margin-top:3px}
.clist b{display:block;color:var(--navy)}
.cform{display:grid;gap:12px;background:var(--bg-2);padding:20px;border-radius:var(--r)}
.cform label{display:grid;gap:4px;font-weight:600;font-size:14px;color:var(--navy)}
.cform input,.cform textarea{font:inherit;font-weight:400;border:1px solid #c8ced6;border-radius:4px;padding:10px 12px;background:#fff;width:100%}
.cform input:focus,.cform textarea:focus{outline:0;border-color:var(--red)}
.cform .hp{position:absolute;left:-9999px}
.cform .msg{margin:0;font-weight:600}.cform .msg.ok{color:var(--ok)}.cform .msg.err{color:var(--red-d)}
.dist .bx p{margin:0}
time.dt{display:block;color:var(--red);margin:-6px 0 16px;font-weight:600}
.h3{font-size:14.5px;text-transform:uppercase}
.smap{columns:2;column-gap:30px}.smap li{break-inside:avoid;padding:3px 0}
.dl a.pg{display:inline;font-size:12px;font-weight:400;padding:0;color:var(--mute)}
.dl li{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.dl li>a:first-child{flex:1}
p.btns{display:flex;flex-wrap:wrap;gap:10px}
@media (max-width:960px){.vmv{grid-template-columns:1fr}.smap{columns:1}}
.layout>*,.intro>*,.two>*,.p-top>*,.howto>*,.vid>*{min-width:0}
.logo{flex:none}
@media (min-width:961px) and (max-width:1120px){.nav .cta-mini{display:none}.hdr .wrap{gap:12px}.logo img{width:130px}}

/* ===== Trang chủ v2 – trung tâm kiến thức dẫn sang shop ===== */
.hh{background:linear-gradient(135deg,var(--navy) 0%,var(--navy-2) 60%,#2a1416 100%);color:#e8ecf1;padding:46px 0 40px}
.hh .wrap{display:grid;grid-template-columns:1.35fr 1fr;gap:36px;align-items:center}
.hh h1{color:#fff;font-size:clamp(26px,3.4vw,40px);font-weight:800;letter-spacing:-.01em;margin:0 0 12px}
.hh h1 em{font-style:normal;color:#ff4d55}
.hh .lead{font-size:16.5px;color:#c9d2dd;margin:0 0 20px;max-width:620px}
.hh .fwrap{position:relative;max-width:620px}
.hh .fwrap input{width:100%;font:inherit;font-size:16px;padding:15px 16px;border-radius:6px;border:0;box-shadow:0 6px 24px rgba(0,0,0,.25)}
.hh .fwrap .fd{left:0;right:auto;width:100%}
.hh .eg{margin:10px 0 0;font-size:13px;color:#aeb8c5}
.hh .eg button{font:inherit;font-size:13px;background:rgba(255,255,255,.1);color:#fff;border:1px solid rgba(255,255,255,.22);border-radius:20px;padding:3px 11px;margin:0 4px 6px 0;cursor:pointer}
.hh .eg button:hover{background:rgba(255,255,255,.2)}
.hh .btns{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}
.hh .btn.lg{padding:14px 22px;font-size:15.5px}
.hh .btn.ghost{background:transparent;border-color:rgba(255,255,255,.55);color:#fff}
.hh .btn.ghost:hover{background:rgba(255,255,255,.1)}
.hh-box{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);border-radius:10px;padding:22px}
.hh-box h2{color:#fff;font-size:15px;text-transform:uppercase;letter-spacing:.1em;margin:0 0 14px}
.hh-stats{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:0 0 16px}
.hh-stats div{background:rgba(0,0,0,.18);border-radius:8px;padding:12px}
.hh-stats b{display:block;font-size:24px;color:#fff;line-height:1.1}
.hh-stats span{font-size:12.5px;color:#aeb8c5}
.hh-box ul{list-style:none;margin:0;padding:0;font-size:14px}
.hh-box li{padding:5px 0 5px 22px;position:relative;color:#d7dee7}
.hh-box li:before{content:"✓";position:absolute;left:0;color:#4fd08a;font-weight:800}
.qb{background:#fff;border-bottom:1px solid var(--line)}
.qb .wrap{display:flex;align-items:center;gap:14px;padding-top:14px;padding-bottom:14px;overflow-x:auto;scrollbar-width:thin}
.qb b{white-space:nowrap;font-size:13px;text-transform:uppercase;letter-spacing:.08em;color:var(--navy)}
.qb a{white-space:nowrap;font-size:14px;font-weight:600;color:var(--navy);background:var(--bg-2);border:1px solid var(--line);border-radius:20px;padding:6px 14px}
.qb a:hover{border-color:var(--red);color:var(--red);text-decoration:none}
.hd2{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin:0 0 22px;flex-wrap:wrap}
.hd2 h2{font-size:clamp(22px,2.4vw,28px);margin:0}
.hd2 p{margin:4px 0 0;color:var(--mute)}
.hd2 a.more{font-weight:700;white-space:nowrap}
.feat{display:grid;grid-template-columns:1.4fr 1fr;gap:20px}
.feat .side{display:grid;gap:14px}
.ac{background:#fff;border-radius:8px;overflow:hidden;box-shadow:var(--sh);display:flex;flex-direction:column;transition:transform .15s,box-shadow .15s}
.ac:hover{transform:translateY(-2px);box-shadow:var(--sh2)}
.ac-im{display:block;aspect-ratio:16/10;background:var(--bg-2);overflow:hidden}
.ac-im img{width:100%;height:100%;object-fit:cover;display:block}
.ac-tx{padding:14px 16px 16px;display:flex;flex-direction:column;flex:1}
.ac-tag{align-self:flex-start;font-size:11.5px;font-weight:700;text-transform:uppercase;letter-spacing:.06em;color:var(--red);background:var(--red-50);border-radius:3px;padding:2px 8px;margin:0 0 8px}
.ac h3{font-size:16.5px;margin:0 0 6px;line-height:1.35}
.ac h3 a{color:var(--navy)}
.ac h3 a:hover{color:var(--red);text-decoration:none}
.ac p{font-size:14px;color:var(--mute);margin:0 0 12px;flex:1}
.ac-act{display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.ac-read{font-weight:700;font-size:14px}
.ac-buy{margin-left:auto;font-size:13.5px;font-weight:700;color:#fff;background:var(--red);border-radius:4px;padding:7px 12px}
.ac-buy:hover{background:var(--red-d);text-decoration:none}
.ac.big h3{font-size:clamp(19px,2vw,23px)}
.ac.big p{font-size:15px}
.feat .side .ac{flex-direction:row}
.feat .side .ac-im{flex:0 0 38%;aspect-ratio:auto}
.feat .side .ac p{display:none}
.feat .side .ac h3{font-size:15px}
.feat .side .ac-buy{margin-left:0}
.lib-tabs{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 20px}
.lib-tabs button{font:inherit;font-size:14px;font-weight:600;padding:8px 16px;border-radius:20px;border:1px solid var(--line);background:#fff;color:var(--navy);cursor:pointer}
.lib-tabs button[aria-pressed="true"]{background:var(--navy);border-color:var(--navy);color:#fff}
.lib-tabs button span{opacity:.6;font-weight:500;margin-left:4px}
.lib{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.lib .ac[hidden]{display:none}
.shopband{background:var(--red);color:#fff}
.shopband .wrap{display:grid;grid-template-columns:1fr auto;gap:20px;align-items:center;padding-top:30px;padding-bottom:30px}
.shopband h2{color:#fff;margin:0 0 6px;font-size:clamp(20px,2.2vw,26px)}
.shopband p{margin:0;color:#ffe1e2}
.shopband .btn{background:#fff;color:var(--red);border-color:#fff;padding:14px 22px;font-size:15.5px}
.shopband .btn.z{background:#0068ff;color:#fff;border-color:#0068ff}
.shopband .bt{display:flex;gap:10px;flex-wrap:wrap}
@media (max-width:960px){
  .hh .wrap{grid-template-columns:1fr}
  .feat{grid-template-columns:1fr}
  .lib{grid-template-columns:1fr 1fr}
  .shopband .wrap{grid-template-columns:1fr}
}
@media (max-width:600px){
  .hh{padding:30px 0}
  .lib{grid-template-columns:1fr;gap:14px}
  .feat .side .ac{flex-direction:column}
  .feat .side .ac-im{aspect-ratio:16/10}
  .ac-buy{margin-left:0}
}

/* ===== Hero bàn xoay – ảnh & video thật (v2) ===== */
.st{position:relative;background:#f3f5f8;padding-bottom:58px;overflow:hidden}
.st-slides{position:relative;height:clamp(460px,66vh,640px)}
.st-slide{position:absolute;inset:0;opacity:0;visibility:hidden;transition:opacity .9s ease,visibility 0s .9s}
.st-slide.on{opacity:1;visibility:visible;transition:opacity .9s ease}
.st-media{position:absolute;top:0;right:0;bottom:0;width:57%;overflow:hidden;background:#1b2430;border-radius:0 0 0 36px}
.st-media img,.st-media video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.st-media img{transform-origin:var(--kb,50% 50%);transform:scale(1.02)}
.st-slide.on .st-media img{animation:st-kb var(--st-t,7s) ease-out forwards}
@keyframes st-kb{from{transform:scale(1.02)}to{transform:scale(1.14)}}
.st-media::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(243,245,248,.55) 0,rgba(243,245,248,0) 18%),linear-gradient(0deg,rgba(10,18,30,.35),rgba(10,18,30,0) 30%);pointer-events:none}
.st-live{position:absolute;right:22px;bottom:22px;z-index:2;color:#fff;font-size:12px;font-weight:700;letter-spacing:.1em;background:rgba(200,16,46,.9);padding:6px 12px;border-radius:99px}
.st-txt{position:absolute;left:max(20px,calc((100vw - 1240px)/2 + 20px));top:50%;transform:translateY(-50%);width:min(calc(43vw - 60px),470px);z-index:2}
.st-tag{display:inline-block;font-size:12px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:#c8102e;border:1px solid rgba(200,16,46,.35);border-radius:99px;padding:5px 12px;background:#fff}
.st-txt h2{font-size:clamp(26px,2.9vw,42px);line-height:1.1;margin:16px 0 14px;color:#14233a;letter-spacing:-.01em}
.st-txt p{font-size:clamp(15px,1.25vw,17.5px);color:#46566b;margin:0 0 26px;line-height:1.6}
.st-bt{display:flex;gap:10px;flex-wrap:wrap}
.st-txt>*{transform:translateY(16px);opacity:0;transition:transform .7s ease,opacity .7s ease}
.st-slide.on .st-txt>*{transform:none;opacity:1}
.st-slide.on .st-txt>:nth-child(2){transition-delay:.1s}.st-slide.on .st-txt>:nth-child(3){transition-delay:.2s}.st-slide.on .st-txt>:nth-child(4){transition-delay:.3s}
.st-logo{position:absolute;right:22px;top:20px;z-index:3;width:120px;background:rgba(255,255,255,.92);padding:7px 10px;border-radius:8px;box-shadow:0 4px 14px rgba(0,0,0,.15)}
.st-logo img{width:100%;height:auto;display:block}
.st-nav{position:absolute;left:max(20px,calc((100vw - 1240px)/2 + 20px));bottom:76px;width:min(calc(43vw - 60px),470px);display:flex;align-items:center;gap:14px;z-index:3}
.st-nums{display:flex;gap:2px}
.st-nums button{font:inherit;font-size:14px;font-weight:700;color:#8a98aa;background:none;border:0;padding:6px 7px;cursor:pointer;border-bottom:2px solid transparent}
.st-nums button[aria-current=true]{color:#14233a;border-color:#c8102e}
.st-bar{flex:1;height:2px;background:rgba(20,35,58,.15);overflow:hidden}.st-bar i{display:block;height:100%;width:0;background:#c8102e}
.st.run .st-bar i{animation:st-bar var(--st-t,7s) linear forwards}@keyframes st-bar{to{width:100%}}
.st-arr{display:flex;gap:8px}
.st-arr button{width:42px;height:42px;border-radius:50%;border:1px solid rgba(20,35,58,.2);background:#fff;font-size:22px;line-height:1;color:#14233a;cursor:pointer}
.st-arr button:hover{border-color:#c8102e;color:#c8102e}
.st-h1{position:absolute;left:0;top:0;z-index:2;padding:16px 0;width:43%}
.st-h1 .wrap{margin:0;padding-left:max(20px,calc((100vw - 1240px)/2 + 20px))}
.st-h1 h1{font-size:12px;font-weight:600;letter-spacing:.04em;color:#6a7a8e;margin:0;text-transform:uppercase;line-height:1.5}
@media (max-width:820px){
 .st{padding-bottom:50px}
 .st-slides{height:auto;min-height:620px}
 .st-media{position:relative;width:100%;height:clamp(240px,62vw,380px);border-radius:0}
 .st-media::after{background:linear-gradient(0deg,rgba(10,18,30,.3),rgba(10,18,30,0) 35%)}
 .st-live{right:12px;bottom:12px}
 .st-txt{position:relative;left:auto;top:auto;transform:none;width:auto;padding:20px 16px 80px}
 .st-txt>*{transform:none}
 .st-txt h2{font-size:26px;margin:12px 0 10px}
 .st-h1{position:static;width:auto;padding:10px 0;background:#fff}.st-h1 .wrap{padding-left:16px}.st-h1 h1{font-size:11px}
 .st-logo{width:84px;right:10px;top:10px;padding:5px 7px}
 .st-nav{left:16px;right:16px;width:auto;bottom:58px}.st-arr{display:none}
}
@media (prefers-reduced-motion:reduce){.st-slide.on .st-media img{animation:none}.st-slide,.st-txt>*{transition:none}}