:root{--r:#e11d2a;--rd:#b3121d;--y:#ffc928;--ink:#1f2328;--mut:#5b6470;--bg:#fff7f2;--line:#f1dcd4}
[hidden]{display:none!important}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;font:16px/1.55 "Segoe UI",Roboto,Arial,sans-serif;color:var(--ink);background:#fff}
img{max-width:100%;height:auto;display:block}a{color:inherit}
.wrap{max-width:1140px;margin:0 auto;padding:0 20px}
header{position:sticky;top:0;z-index:20;background:#fff;border-bottom:1px solid var(--line);box-shadow:0 2px 10px #0000000d}
.hd{display:flex;align-items:center;gap:22px;height:68px}
.hd .logo img{height:46px;width:auto;object-fit:contain}
.hd nav{display:flex;gap:20px;font-weight:600;font-size:15px;margin-left:auto}
.hd nav a{text-decoration:none;color:#333}.hd nav a:hover{color:var(--r)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:999px;padding:12px 24px;font-weight:700;text-decoration:none;border:2px solid var(--r);cursor:pointer;font-size:15px;white-space:nowrap}
.btn.pri{background:var(--r);color:#fff;box-shadow:0 6px 16px #e11d2a40}.btn.pri:hover{background:var(--rd)}
.btn.ghost{background:#fff;color:var(--r)}.btn.sm{padding:8px 16px;font-size:14px}
.btn.y{background:var(--y);border-color:var(--y);color:#3b2a00}
.hd .acts{display:flex;gap:8px}
.burger{display:none;margin-left:auto;font-size:26px;background:none;border:0}
/* hero */
.hero{position:relative;color:#fff;background:#7a0d14 url(../img/hero-bg.webp) center/cover}
.hero:before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,#8b0d16f2 0%,#b3121dd9 45%,#b3121d40 100%)}
.hero .wrap{position:relative;display:grid;grid-template-columns:1.1fr .9fr;gap:30px;padding:70px 20px 80px;align-items:center}
.hero h1{font-size:46px;line-height:1.12;margin:0 0 14px;text-transform:uppercase;letter-spacing:-.5px}
.hero h1 span{color:var(--y)}
.hero p{font-size:18px;margin:0 0 24px;max-width:560px;opacity:.95}
.hero .cta{display:flex;gap:12px;flex-wrap:wrap}
.hero .slogan{margin-top:22px;font-style:italic;color:#ffe9a8}
.hero .pic{border-radius:18px;overflow:hidden;border:4px solid #fff3;box-shadow:0 20px 40px #0005}
/* stats */
.stats{margin-top:-40px;position:relative;z-index:2}
.stats .wrap{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.st{background:#fff;border-radius:16px;padding:20px;text-align:center;box-shadow:0 10px 30px #0000001a;border-top:4px solid var(--r)}
.st b{display:block;font-size:30px;color:var(--r);line-height:1.1}.st span{color:var(--mut);font-size:14px}
section{padding:70px 0}
.alt{background:var(--bg)}
h2{font-size:32px;line-height:1.2;text-align:center;margin:0 0 10px}
h2 em{font-style:normal;color:var(--r)}
.lead{text-align:center;color:var(--mut);max-width:720px;margin:0 auto 36px}
.kick{display:block;text-align:center;color:var(--rd);font-weight:700;letter-spacing:2px;font-size:13px;text-transform:uppercase;margin-bottom:6px}
/* pains */
.g3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px}
.pain h3{margin:6px 0 6px;color:var(--rd)}.pain .ic{font-size:30px}
.vs{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:30px}
.vs .card h3{margin:0 0 4px}.vs ul{margin:12px 0 0;padding:0;list-style:none}
.vs li{padding:8px 0 8px 30px;position:relative;border-top:1px dashed #eee}
.vs .old li:before{content:"✕";position:absolute;left:4px;color:#9aa1a9;font-weight:700}
.vs .new{border:2px solid var(--r);background:#fff}
.vs .new li:before{content:"✓";position:absolute;left:4px;color:var(--r);font-weight:800}
.vs .old{background:#f6f6f6}.vs .old h3{color:#6b7280}
/* steps */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;counter-reset:s}
.step{position:relative;padding:30px 22px 22px;text-align:center}
.step .n{width:54px;height:54px;border-radius:50%;background:var(--r);color:#fff;font-weight:800;font-size:22px;display:grid;place-items:center;margin:0 auto 12px;box-shadow:0 6px 14px #e11d2a55}
.step h3{margin:0 0 6px}.step p{margin:0;color:var(--mut);font-size:15px}
.center{text-align:center;margin-top:28px}
/* categories */
.cats{display:flex;flex-wrap:wrap;justify-content:center;gap:16px}.cats .cat{width:calc(25% - 12px)}
.cat{display:block;text-decoration:none;background:#fff;border-radius:16px;overflow:hidden;border:1px solid var(--line);transition:.2s}
.cat:hover{transform:translateY(-4px);box-shadow:0 12px 24px #0000001a}
.cat .im{aspect-ratio:1;background:#fafafa;display:grid;place-items:center;padding:10px}
.cat .im img{max-height:100%;object-fit:contain}
.cat div.t{padding:12px 14px;font-weight:700;display:flex;justify-content:space-between;align-items:center}
.cat div.t small{color:var(--r);font-weight:600}
/* policy */
.pol{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.pol .card h3{margin:0 0 10px;display:flex;gap:10px;align-items:center;color:var(--rd)}
.pol .card h3 i{font-style:normal;background:var(--r);color:#fff;border-radius:10px;width:34px;height:34px;display:grid;place-items:center;font-size:18px}
.tier{display:flex;gap:12px;padding:12px;border-radius:12px;background:#fff6f4;margin-top:10px;align-items:flex-start}
.tier .m{flex:none;background:var(--y);color:#3b2a00;font-weight:800;border-radius:8px;padding:4px 10px;font-size:13px}
.tier p{margin:0;font-size:15px}
.rows{margin:0;padding:0;list-style:none}.rows li{display:flex;justify-content:space-between;gap:12px;padding:10px 0;border-top:1px dashed #eee;font-size:15px}
.rows li b{color:var(--rd);text-align:right}
.note{font-size:13px;color:var(--mut);margin-top:10px}
details.ex{margin-top:18px;background:#fff;border:1px dashed var(--r);border-radius:14px;padding:14px 18px}
details.ex summary{cursor:pointer;font-weight:700;color:var(--r)}
details.ex p{margin:10px 0 0;font-size:15px}
.big{background:var(--r);color:#fff;border-radius:16px;padding:24px;display:flex;gap:20px;align-items:center;justify-content:space-between;margin-bottom:18px}
.big h3{margin:0 0 4px;font-size:22px}.big p{margin:0}
.big .amt{font-size:40px;font-weight:900;color:var(--y);white-space:nowrap}
/* testimonials */
.tm{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.q{position:relative}
.q:before{content:"“";position:absolute;right:16px;top:-6px;font-size:70px;color:#f6c9c5;font-family:Georgia}
.q p{margin:0 0 14px;font-style:italic}
.who{display:flex;gap:12px;align-items:center}.who img{width:46px;height:46px;border-radius:50%;object-fit:cover;border:2px solid var(--y)}
.who b{display:block}.who span{font-size:13px;color:var(--mut)}
.case{display:grid;grid-template-columns:.8fr 1.2fr;gap:28px;align-items:center;margin-top:40px;background:#fff;border-radius:20px;padding:26px;border:1px solid var(--line)}
.case img{border-radius:14px}
.case h3{margin:4px 0 12px;font-size:24px}.case .lab{color:var(--r);font-weight:800;font-size:13px;letter-spacing:1px}
.case dl{margin:0}.case dt{font-weight:800;margin-top:10px}.case dd{margin:2px 0 0}
.case .res{background:#fff6d6;border-radius:10px;padding:10px 14px;margin-top:12px;font-weight:600}
/* warehouse */
.kho{display:grid;grid-template-columns:1.3fr 1fr;gap:16px}
.kho img{border-radius:16px;width:100%;height:100%;object-fit:cover;max-height:380px}
/* faq */
.faq{max-width:820px;margin:0 auto}
.faq details{background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px 18px;margin-bottom:10px}
.faq summary{font-weight:700;cursor:pointer}.faq p{margin:8px 0 0;color:#444}
/* final cta */
.final{background:linear-gradient(135deg,var(--r),#ff5a3c);color:#fff;text-align:center}
.final h2{color:#fff}.final p{opacity:.95;max-width:640px;margin:0 auto 24px}
.final .cta{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.final .btn.ghost{border-color:#fff}
footer{background:#1d1013;color:#e9dcd8;padding:44px 0 90px;font-size:15px}
footer .wrap{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:28px}
footer h3{color:#fff;margin:0 0 10px;font-size:1em}footer p{margin:4px 0}
footer .soc{display:flex;gap:10px;margin-top:10px}footer .soc a{background:#ffffff1a;border-radius:8px;padding:6px 10px;text-decoration:none;font-size:14px}
.float{position:fixed;right:16px;bottom:18px;display:flex;flex-direction:column;gap:10px;z-index:30}
.float a{width:54px;height:54px;border-radius:50%;display:grid;place-items:center;color:#fff;font-weight:800;text-decoration:none;box-shadow:0 8px 18px #0004;font-size:13px}
.float .z{background:#0068ff}.float .p{background:#16a34a;font-size:22px}
.mbar{display:none}
@media (max-width:900px){
 .hd nav{display:none}.burger{display:block;margin-left:0}.hd .acts{margin-left:auto}
 .hero{background-image:url(../img/hero-bg-sm.webp)}
 .hero .wrap{grid-template-columns:1fr;padding:44px 20px 70px}.hero h1{font-size:32px}.hero .pic{display:none}
 .stats .wrap{grid-template-columns:repeat(2,1fr)}.st b{font-size:22px}
 .g3,.steps,.tm,.pol,.vs,.kho,.case{grid-template-columns:1fr}
 .cats .cat{width:calc(50% - 8px)}
 h2{font-size:25px}section{padding:50px 0}
 .big{flex-direction:column;text-align:center}
 footer .wrap{grid-template-columns:1fr}
 .float{bottom:78px}
 .mbar{display:grid;grid-template-columns:1fr 1fr;position:fixed;left:0;right:0;bottom:0;z-index:31;background:#fff;box-shadow:0 -4px 14px #0002;padding:8px;gap:8px}
 .mbar .btn{padding:11px 10px}
}

/* chọn tài khoản Zalo: mở bằng #zalo (CSS :target, không cần JS) */
.zpick{position:fixed;inset:0;background:#0008;z-index:50;display:none;align-items:center;justify-content:center;padding:20px}
.zpick:target{display:flex}
.zbox{background:#fff;border-radius:18px;max-width:420px;width:100%;padding:22px;position:relative}
.zbox h3{margin:0 0 4px}.zbox p{margin:0 0 14px;color:var(--mut);font-size:14px}
.zacc{display:flex;gap:12px;align-items:center;padding:12px;border:1px solid #dbe4ff;border-radius:14px;text-decoration:none;margin-top:10px}
.zacc:hover{background:#f0f5ff}.zacc img{width:48px;height:48px;border-radius:50%;object-fit:contain;background:#fff;border:1px solid #eee}
.zacc b{display:block}.zacc span{font-size:13px;color:var(--mut)}.zacc em{margin-left:auto;font-style:normal;background:#0068ff;color:#fff;border-radius:999px;padding:6px 12px;font-size:13px;font-weight:700}
.zx{position:absolute;right:14px;top:10px;font-size:24px;text-decoration:none;color:#888}

/* menu thả xuống trên điện thoại: nút ☰ bật/tắt bằng js/main.js */
.burger{cursor:pointer;color:var(--ink);line-height:1;padding:4px 6px}
.mnav{display:none}
@media (max-width:900px){
 .mnav.open{display:block;position:absolute;left:0;right:0;top:100%;background:#fff;border-bottom:1px solid var(--line);box-shadow:0 10px 20px #0000001a;padding:6px 20px 16px}
 .mnav a:not(.btn){display:block;padding:12px 0;font-weight:600;text-decoration:none;color:#333;border-bottom:1px solid #f3ece9}
 .mnav .acts2{display:flex;gap:10px;margin-top:14px}.mnav .acts2 .btn{flex:1}
}