/* ============================================================
   MPA AUDIO — tông nâu đen · vàng đồng theo hồ sơ năng lực (khung MacZone)
   (bộ nhận diện MZ monochrome — 08/2026)
   ============================================================ */
:root{
  --blue:#a9741b;            /* đen graphite — màu nhấn chính */
  --blue-dark:#372501;
  --cyan:#d39733;            /* bạc — màu nhấn phụ */
  --ink:#2d2003;
  --muted:#6f6047;
  --line:#eadfcd;
  --bg:#faf6ef;
  --card:#ffffff;
  --red:#c62828;
  --green:#6b4a12;
  --amber:#d39733;
  --radius:18px;
  --shadow:0 6px 24px rgba(55,37,1,.08);
  --shadow-lg:0 18px 50px rgba(55,37,1,.18);
  --grad:linear-gradient(135deg,#2d2003 0%,#5a3d10 55%,#a9741b 100%);
  --silver:linear-gradient(135deg,#fff7e3 0%,#e9c979 40%,#c9962f 100%);
  --chrome:linear-gradient(115deg,#fff4d8 0%,#f3dea3 18%,#d39733 40%,#a9741b 55%,#e2b75a 72%,#fff4d8 100%);
  --chrome-text:linear-gradient(115deg,#e6c06a 0%,#d39733 28%,#a9741b 50%,#d39733 70%,#f0d58e 100%);
  --maxw:1280px;
}
@keyframes shine{0%,100%{background-position:0% 0%}50%{background-position:100% 100%}}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:"Be Vietnam Pro",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  background:var(--bg);color:var(--ink);font-size:15.5px;line-height:1.6;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul{list-style:none}
button{font:inherit;border:none;background:none;cursor:pointer;color:inherit}
input,select,textarea{font:inherit;color:inherit}
.container{max-width:var(--maxw);margin:0 auto;padding:0 20px}

/* ---------- nút ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:999px;font-weight:600;font-size:15px;
  transition:.2s;white-space:nowrap;border:1.5px solid transparent}
.btn-primary{position:relative;overflow:hidden;
  background:linear-gradient(180deg,#6b4a12 0%,#3b2801 55%,#1f1400 100%);
  color:#fff;letter-spacing:.4px;border:1px solid #8a6a2a;
  box-shadow:0 8px 20px rgba(45,32,3,.30),inset 0 1px 0 rgba(255,255,255,.22),inset 0 -1px 0 rgba(0,0,0,.55)}
.btn-primary::after{content:"";position:absolute;top:0;bottom:0;left:-80%;width:55%;
  background:linear-gradient(100deg,transparent 0%,rgba(255,255,255,.25) 50%,transparent 100%);
  transform:skewX(-20deg);transition:left .55s ease;pointer-events:none}
.btn-primary:hover::after{left:135%}
.btn-primary:hover{transform:translateY(-2px);border-color:#d39733;
  box-shadow:0 12px 26px rgba(45,32,3,.40),inset 0 1px 0 rgba(255,255,255,.22),inset 0 -1px 0 rgba(0,0,0,.55)}
.btn-ghost{border-color:var(--line);background:#fff;color:var(--ink)}
.btn-ghost:hover{border-color:var(--blue);color:var(--blue)}
.btn-dark{background:var(--ink);color:#fff;box-shadow:inset 0 1px 0 rgba(255,255,255,.14)}
.btn-dark:hover{background:#4a3210}
.btn-silver{background:var(--chrome);background-size:200% 200%;color:#2d2003;font-weight:700;
  box-shadow:0 8px 20px rgba(12,13,16,.25),inset 0 1px 0 #fff;animation:shine 6s ease-in-out infinite}
.btn-silver:hover{transform:translateY(-2px);box-shadow:0 12px 26px rgba(12,13,16,.35),inset 0 1px 0 #fff}
.btn-sm{padding:9px 16px;font-size:13.5px}
.btn-block{width:100%}

/* ---------- thanh trên cùng ---------- */
.topbar{background:var(--ink);color:#d8c9a6;font-size:12.5px}
.topbar .container{display:flex;justify-content:space-between;align-items:center;min-height:34px;gap:12px}
.topbar a{color:#fff;font-weight:600}
.topbar .tb-left,.topbar .tb-right{display:flex;gap:18px;align-items:center;flex-wrap:wrap}
@media(max-width:768px){.topbar .tb-left span.tb-addr{display:none}}

/* ---------- header ---------- */
.site-header{background:#fff;position:sticky;top:0;z-index:900;box-shadow:0 1px 0 var(--line)}
.header-main{display:flex;align-items:center;gap:22px;padding:14px 0}
.logo{display:flex;align-items:center;gap:12px;flex-shrink:0}
/* logo MZ dùng file gốc: mark chữ lồng (header nền trắng) + avatar tròn (footer nền đen) */
.logo-mark-img{height:44px;width:auto;mix-blend-mode:multiply}
.logo-avatar{width:56px;height:56px;border-radius:50%;object-fit:cover;
  box-shadow:0 4px 16px rgba(0,0,0,.45)}
.logo-text{line-height:1.1}
.logo-text b{display:block;font-family:'Montserrat','Be Vietnam Pro',sans-serif;
  font-size:19px;letter-spacing:3px;font-weight:800;color:#372501}
.logo-text b em{font-style:normal;background:var(--chrome-text);background-size:220% 220%;
  -webkit-background-clip:text;background-clip:text;color:transparent;
  animation:shine 5.5s ease-in-out infinite}
.site-footer .logo-text b{color:#fff}
.logo-text small{display:flex;align-items:center;gap:7px;font-size:8.5px;color:#a9741b;
  letter-spacing:2.6px;text-transform:uppercase;margin-top:3px;white-space:nowrap}
.logo-text small::before,.logo-text small::after{content:"";height:1px;flex:0 0 13px;background:#d39733}
.search-wrap{flex:1;max-width:520px;position:relative}
.search-box{display:flex;align-items:center;background:var(--bg);border:1.5px solid var(--line);
  border-radius:999px;padding:0 6px 0 18px;height:46px;transition:.2s}
.search-box:focus-within{border-color:var(--blue);background:#fff;box-shadow:0 0 0 4px rgba(169,116,27,.15)}
.search-box input{flex:1;border:none;outline:none;background:transparent;font-size:14.5px}
.search-box .search-btn{width:36px;height:36px;border-radius:50%;background:var(--grad);color:#fff;
  display:flex;align-items:center;justify-content:center;flex-shrink:0}
.header-actions{display:flex;align-items:center;gap:10px;margin-left:auto}
.h-action{display:flex;align-items:center;gap:10px;padding:8px 14px;border-radius:14px;transition:.2s;position:relative}
.h-action:hover{background:var(--bg)}
.h-action .ic{width:38px;height:38px;border-radius:12px;background:#f5ecd9;color:var(--blue);
  display:flex;align-items:center;justify-content:center;flex-shrink:0}
.h-action .tx{line-height:1.2;font-size:12px;color:var(--muted)}
.h-action .tx b{display:block;font-size:13.5px;color:var(--ink)}
.cart-count{position:absolute;top:2px;left:38px;background:var(--red);color:#fff;font-size:10.5px;
  font-weight:700;min-width:18px;height:18px;border-radius:9px;display:flex;align-items:center;
  justify-content:center;padding:0 4px;border:2px solid #fff}
.menu-toggle{display:none;width:44px;height:44px;border-radius:12px;background:var(--bg);
  align-items:center;justify-content:center}

/* ---------- nav ---------- */
.main-nav{border-top:1px solid var(--line);background:#fff}
.main-nav ul.nav-list{display:flex;flex-wrap:wrap;gap:2px}
.main-nav .nav-item{position:relative}
.main-nav .nav-item>a{display:flex;align-items:center;gap:5px;padding:12px 10px;font-weight:600;
  font-size:12.5px;letter-spacing:.2px;border-radius:10px 10px 0 0;transition:.15s;text-transform:uppercase}
.main-nav .nav-item>a:hover,.main-nav .nav-item>a.active{color:var(--blue)}
.main-nav .nav-item>a .car{font-size:9px;opacity:.5}
.dropdown{position:absolute;top:100%;left:0;background:#fff;min-width:230px;border-radius:0 0 16px 16px;
  box-shadow:var(--shadow-lg);padding:10px;display:none;z-index:600;border-top:3px solid var(--blue)}
.nav-item:hover .dropdown{display:block}
.dropdown a{display:block;padding:9px 14px;border-radius:10px;font-size:14px;color:#3c3f45}
.dropdown a:hover{background:#f5ecd9;color:var(--blue);font-weight:600}

/* drawer mobile */
.drawer-overlay{position:fixed;inset:0;background:rgba(12,13,16,.5);z-index:1000;opacity:0;
  pointer-events:none;transition:.25s;backdrop-filter:blur(2px)}
.drawer-overlay.open{opacity:1;pointer-events:auto}
.mobile-drawer{position:fixed;top:0;left:0;bottom:0;width:min(320px,85vw);background:#fff;z-index:1001;
  transform:translateX(-105%);transition:.28s cubic-bezier(.4,0,.2,1);overflow-y:auto;padding:20px}
.mobile-drawer.open{transform:none}
.mobile-drawer .m-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px}
.mobile-drawer .m-cat>a{display:flex;justify-content:space-between;align-items:center;padding:12px 10px;
  font-weight:600;border-bottom:1px solid var(--line)}
.mobile-drawer .m-sub{padding:4px 10px 10px 22px;display:none}
.mobile-drawer .m-sub a{display:block;padding:7px 0;color:var(--muted);font-size:14px}
.mobile-drawer .m-cat.open .m-sub{display:block}
.mobile-drawer .m-hot{margin-top:16px;background:#f5ecd9;border-radius:14px;padding:14px;font-size:14px}

/* ---------- hero ---------- */
.hero{margin:22px auto 0}
.hero-slider{position:relative;border-radius:24px;overflow:hidden;box-shadow:var(--shadow-lg)}
.slides{display:flex;transition:transform .55s cubic-bezier(.4,0,.2,1)}
.slide{min-width:100%;min-height:400px;display:flex;align-items:center;position:relative;overflow:hidden;padding:40px 56px}
.slide .s-body{position:relative;z-index:2;max-width:520px}
.slide .s-kicker{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.18);
  border:1px solid rgba(255,255,255,.35);color:#fff;padding:6px 14px;border-radius:999px;
  font-size:12.5px;font-weight:600;letter-spacing:.6px;text-transform:uppercase;backdrop-filter:blur(4px)}
.slide h2{color:#fff;font-size:clamp(26px,4vw,44px);line-height:1.15;margin:16px 0 12px;font-weight:800}
.slide p{color:rgba(255,255,255,.88);font-size:16px;margin-bottom:24px}
.slide .s-img{position:absolute;right:4%;bottom:0;top:0;width:44%;display:flex;align-items:center;justify-content:center;z-index:1}
.slide .s-img img{max-height:82%;object-fit:contain;filter:drop-shadow(0 24px 44px rgba(0,0,0,.35))}
.slide-1{background:radial-gradient(640px 320px at 74% 18%,rgba(255,255,255,.95),transparent 62%),
  linear-gradient(120deg,#fffdf8 0%,#f7efdf 55%,#ecdcb9 100%)}
.slide-2{background:linear-gradient(120deg,#1f1400 0%,#372501 55%,#6b4a12 100%)}
.slide-3{background:linear-gradient(120deg,#fbf6ec 0%,#f1e6cf 60%,#e7d7b3 100%)}
.slide .bubble{position:absolute;border-radius:50%;background:rgba(255,255,255,.12)}
/* slide nền sáng: chữ tối + vòng studio */
.slide-light h2{color:#2d2003}
.slide-light p{color:#5a4a2a}
.slide-light .s-kicker{background:rgba(169,116,27,.10);border-color:rgba(169,116,27,.35);color:#6b4a12}
.slide-light .bubble{background:transparent;border:2px solid rgba(169,116,27,.14)}
.slide-2 .bubble{background:transparent;border:2px solid rgba(211,151,51,.25)}
.hero-dots{position:absolute;bottom:16px;left:56px;display:flex;gap:8px;z-index:5}
.hero-dots button{width:26px;height:6px;border-radius:3px;background:rgba(169,116,27,.35);
  box-shadow:0 0 0 1px rgba(255,255,255,.35);transition:.25s}
.hero-dots button.on{background:#a9741b;width:40px}
.hero-arr{position:absolute;top:50%;transform:translateY(-50%);width:42px;height:42px;border-radius:50%;
  background:rgba(255,255,255,.85);color:var(--ink);display:flex;align-items:center;justify-content:center;
  z-index:5;font-size:18px;box-shadow:var(--shadow);transition:.2s}
.hero-arr:hover{background:#fff;transform:translateY(-50%) scale(1.08)}
.hero-arr.prev{left:14px}.hero-arr.next{right:14px}
@media(max-width:860px){
  .slide{padding:32px 26px;min-height:420px;align-items:flex-start}
  .slide .s-body{max-width:100%}
  .slide .s-img{opacity:.6;right:-10%;width:75%;top:auto;height:55%;bottom:-6%}
  .hero-dots{left:26px}
}

/* ---------- USP ---------- */
.usp{margin:26px auto}
.usp-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.usp-item{background:#fff;border-radius:16px;padding:16px 18px;display:flex;gap:14px;align-items:center;box-shadow:var(--shadow)}
.usp-item .u-ic{width:46px;height:46px;border-radius:14px;background:#f5ecd9;color:var(--blue);font-size:22px;
  display:flex;align-items:center;justify-content:center;flex-shrink:0}
.usp-item b{display:block;font-size:13.5px;text-transform:uppercase;letter-spacing:.3px}
.usp-item span{font-size:12.5px;color:var(--muted)}
@media(max-width:1024px){.usp-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:520px){.usp-grid{grid-template-columns:1fr 1fr;gap:10px}
  .usp-item{flex-direction:column;text-align:center;padding:14px 10px;gap:8px}}

/* ---------- danh mục tiles ---------- */
.cat-tiles{display:grid;grid-template-columns:repeat(6,1fr);gap:12px}
.cat-tile{background:#fff;border-radius:16px;padding:18px 8px 14px;text-align:center;box-shadow:var(--shadow);
  transition:.2s;border:1.5px solid transparent}
.cat-tile:hover{transform:translateY(-4px);border-color:var(--blue);box-shadow:var(--shadow-lg)}
.cat-tile .c-ic{font-size:28px;margin-bottom:8px}
.cat-tile b{font-size:12.5px;font-weight:600;display:block;line-height:1.3}
@media(max-width:1024px){.cat-tiles{grid-template-columns:repeat(3,1fr)}}
@media(max-width:640px){.cat-tiles{grid-template-columns:repeat(2,1fr)}}

/* ---------- section ---------- */
.section{margin:44px auto}
.section-head{display:flex;align-items:baseline;justify-content:space-between;gap:14px;margin-bottom:20px}
.section-head h2{font-size:clamp(20px,2.6vw,27px);font-weight:800;display:flex;align-items:center;gap:12px}
.section-head h2::before{content:"";width:5px;height:26px;border-radius:3px;display:inline-block;
  background:linear-gradient(180deg,#f3dea3 0%,#d39733 50%,#6b4a12 100%);
  box-shadow:0 0 0 1px rgba(55,37,1,.10)}
.section-head .see-all{color:var(--blue);font-weight:600;font-size:14px;white-space:nowrap}
.section-head .see-all:hover{text-decoration:underline}

/* ---------- product grid/card ---------- */
.prod-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.prod-grid.cols-6{grid-template-columns:repeat(6,1fr)}
@media(max-width:1100px){.prod-grid,.prod-grid.cols-6{grid-template-columns:repeat(3,1fr)}}
@media(max-width:760px){.prod-grid,.prod-grid.cols-6{grid-template-columns:repeat(2,1fr);gap:12px}}
.prod-card{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden;
  display:flex;flex-direction:column;transition:.22s;cursor:pointer;position:relative;border:1px solid #f0e8d8}
.prod-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg);border-color:#d39733}
.prod-thumb{position:relative;background:#fff;aspect-ratio:1/0.82;display:flex;align-items:center;justify-content:center;padding:16px}
.prod-thumb img{position:absolute;inset:14px;width:calc(100% - 28px);height:calc(100% - 28px);object-fit:contain;transition:.3s}
.prod-card:hover .prod-thumb img{transform:scale(1.05)}
.prod-thumb .no-img{width:70%;aspect-ratio:1;border-radius:18px;background:linear-gradient(135deg,#f5ecd9,#fbf7ee);
  display:flex;align-items:center;justify-content:center;font-size:38px}
.p-badges{position:absolute;top:10px;left:10px;display:flex;flex-direction:column;gap:5px;z-index:2}
.chip{font-size:10.5px;font-weight:700;letter-spacing:.4px;padding:4px 9px;border-radius:999px;color:#fff;text-transform:uppercase}
.chip-hot{background:#372501}
.chip-new{background:var(--chrome);background-size:200% 200%;color:#2d2003;animation:shine 6s ease-in-out infinite}
.chip-sale{background:var(--red)}
.chip-stock{background:#8a6a2a}
.p-cond{position:absolute;top:10px;right:10px;z-index:2;font-size:10.5px;font-weight:600;
  padding:4px 9px;border-radius:999px;background:rgba(55,37,1,.85);color:#fff;backdrop-filter:blur(3px)}
.p-cond.cond-new{background:rgba(55,37,1,.9)}
.p-cond.cond-open{background:rgba(139,44,44,.9)}
.p-cond.cond-like{background:linear-gradient(135deg,#fff3d6,#e0bf74);color:#2d2003;box-shadow:inset 0 1px 0 #fff}
.prod-info{padding:4px 16px 16px;display:flex;flex-direction:column;gap:5px;flex:1}
.prod-title{font-weight:700;font-size:14.5px;line-height:1.35}
.prod-sub{font-size:12.5px;color:var(--muted);line-height:1.4;flex:1}
.prod-price{font-size:16.5px;font-weight:800;color:var(--blue);margin-top:4px}
.prod-price.lienhe{color:var(--red);font-size:14.5px}
.prod-actions{display:flex;gap:8px;margin-top:10px}
.prod-actions .btn{flex:1;padding:10px 8px;font-size:11.5px;font-weight:700;
  text-transform:uppercase;letter-spacing:.8px}
.prod-actions .add-cart{flex:0 0 40px;width:40px;height:38px;border-radius:12px;background:#f5ecd9;
  color:var(--blue);display:flex;align-items:center;justify-content:center;font-size:17px;transition:.2s}
.prod-actions .add-cart:hover{background:var(--blue);color:#fff}

/* hàng cuộn ngang (bán chạy) */
.scroll-row{display:grid;grid-auto-flow:column;grid-auto-columns:calc((100% - 64px)/5);gap:16px;
  overflow-x:auto;padding:4px 4px 14px;scroll-snap-type:x mandatory;scrollbar-width:thin}
.scroll-row>.prod-card{scroll-snap-align:start}
@media(max-width:1100px){.scroll-row{grid-auto-columns:calc((100% - 32px)/3)}}
@media(max-width:760px){.scroll-row{grid-auto-columns:calc((100% - 16px)/2)}}

/* ---------- banner strip ---------- */
.strip{border-radius:22px;overflow:hidden;display:grid;grid-template-columns:1fr 1fr;gap:16px}
.strip-card{border-radius:22px;padding:30px 34px;color:#fff;position:relative;overflow:hidden;min-height:170px;
  display:flex;flex-direction:column;justify-content:center;gap:8px}
.strip-card h3{font-size:22px;font-weight:800}
.strip-card p{font-size:14px;opacity:.92;max-width:420px}
.strip-card .btn{align-self:flex-start;margin-top:10px}
.strip-a{background:linear-gradient(120deg,#fbf3e2,#eddcb8);color:#2d2003}
.strip-a p{color:#5a4a2a}
.strip-b{background:linear-gradient(120deg,#1f1400,#4a3210)}
.strip-card .big-emoji{position:absolute;right:18px;bottom:6px;font-size:88px;opacity:.25;transform:rotate(-8deg)}
@media(max-width:860px){.strip{grid-template-columns:1fr}}

/* ---------- vì sao chọn ---------- */
.why-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.why-card{background:#fff;border-radius:20px;padding:26px;box-shadow:var(--shadow);border-top:4px solid var(--blue)}
.why-card.wc-open{border-top-color:var(--amber)}
.why-card.wc-like{border-top-color:var(--green)}
.why-card .w-tag{display:inline-block;font-size:11.5px;font-weight:700;letter-spacing:.8px;text-transform:uppercase;
  padding:5px 12px;border-radius:999px;background:#f5ecd9;color:var(--blue);margin-bottom:12px}
.why-card.wc-open .w-tag{background:linear-gradient(135deg,#f8edd6,#e6cb90);color:#5a3d10}
.why-card.wc-like .w-tag{background:#372501;color:#f3dea3}
.why-card h3{font-size:18px;margin-bottom:8px}
.why-card p{font-size:14px;color:var(--muted)}
@media(max-width:860px){.why-grid{grid-template-columns:1fr}}
.service-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:16px}
.service-item{background:#fff;border-radius:16px;padding:18px;display:flex;gap:14px;box-shadow:var(--shadow)}
.service-item .s-ic{width:44px;height:44px;border-radius:13px;background:var(--grad);color:#fff;font-size:20px;
  display:flex;align-items:center;justify-content:center;flex-shrink:0}
.service-item b{font-size:14.5px;display:block;margin-bottom:2px}
.service-item span{font-size:13px;color:var(--muted)}
@media(max-width:860px){.service-grid{grid-template-columns:1fr}}

/* ---------- hotline band ---------- */
.hotline-band{background:linear-gradient(135deg,#1f1400,#3d2a08);border-radius:22px;padding:30px;display:grid;
  grid-template-columns:repeat(3,1fr);gap:18px;color:#fff;
  border:1px solid #5a4315;box-shadow:inset 0 1px 0 rgba(255,255,255,.08)}
.hl-item{display:flex;gap:14px;align-items:center;padding:6px 10px}
.hl-item .hl-ic{width:50px;height:50px;border-radius:50%;background:rgba(255,255,255,.1);
  display:flex;align-items:center;justify-content:center;font-size:22px;flex-shrink:0}
.hl-item span{display:block;font-size:12.5px;color:#d8c9a6}
.hl-item a{font-size:19px;font-weight:800;letter-spacing:.4px}
.hl-item a:hover{color:var(--cyan)}
@media(max-width:860px){.hotline-band{grid-template-columns:1fr;padding:22px}}

/* ---------- footer ---------- */
.site-footer{background:#1a1000;color:#cdbd9b;margin-top:60px;font-size:14px}
.footer-top{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:30px;padding:44px 0 30px}
.site-footer h4{color:#fff;font-size:14px;text-transform:uppercase;letter-spacing:1px;margin-bottom:16px}
.site-footer li{margin-bottom:9px}
.site-footer a:hover{color:var(--cyan)}
.f-about p{margin:10px 0;font-size:13.5px;line-height:1.7}
.f-hotlines div{margin-bottom:10px;font-size:13.5px}
.f-hotlines b{color:#fff;font-size:15px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);padding:16px 0;font-size:13px;
  display:flex;justify-content:space-between;gap:10px;flex-wrap:wrap;color:#7e828a}
@media(max-width:900px){.footer-top{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.footer-top{grid-template-columns:1fr}}

/* ---------- nút liên hệ nổi ---------- */
.float-contact{position:fixed;right:16px;bottom:20px;display:flex;flex-direction:column;gap:12px;z-index:950}
.fc-btn{width:52px;height:52px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  color:#fff;font-size:22px;box-shadow:0 10px 26px rgba(12,13,16,.3);transition:.2s;position:relative}
.fc-btn:hover{transform:scale(1.1)}
.fc-phone{background:#372501;border:1px solid #8a6a2a;animation:ring 1.6s infinite}
.fc-zalo{background:#0068ff;font-size:13px;font-weight:800;letter-spacing:-.5px}
.fc-top{background:#fff;color:var(--ink);font-size:18px;display:none}
.fc-top.show{display:flex}
@keyframes ring{0%,100%{box-shadow:0 10px 26px rgba(45,32,3,.35),0 0 0 0 rgba(211,151,51,.5)}
  60%{box-shadow:0 10px 26px rgba(45,32,3,.35),0 0 0 14px rgba(211,151,51,0)}}

/* ---------- trang danh mục ---------- */
.page-head{margin:24px auto 6px}
.breadcrumb{font-size:13px;color:var(--muted);margin-bottom:8px}
.breadcrumb a:hover{color:var(--blue)}
.page-head h1{font-size:clamp(22px,3vw,30px);font-weight:800}
.page-head .count{color:var(--muted);font-size:14px;font-weight:400}
.filter-bar{display:flex;flex-wrap:wrap;gap:10px;align-items:center;background:#fff;border-radius:16px;
  padding:12px 14px;box-shadow:var(--shadow);margin:16px 0 22px}
.filter-chips{display:flex;flex-wrap:wrap;gap:8px;flex:1}
.f-chip{padding:8px 16px;border-radius:999px;background:var(--bg);font-size:13.5px;font-weight:600;
  border:1.5px solid transparent;transition:.15s}
.f-chip:hover{border-color:var(--blue);color:var(--blue)}
.f-chip.on{background:var(--grad);color:#fff;box-shadow:0 4px 12px rgba(55,37,1,.25)}
.filter-bar select{border:1.5px solid var(--line);border-radius:12px;padding:9px 12px;background:#fff;
  font-size:13.5px;outline:none;cursor:pointer}
.filter-bar select:focus{border-color:var(--blue)}
.empty-state{text-align:center;padding:70px 20px;color:var(--muted)}
.empty-state .e-ic{font-size:52px;margin-bottom:12px}

/* ---------- trang nội dung ---------- */
.content-page{background:#fff;border-radius:22px;box-shadow:var(--shadow);padding:clamp(24px,4vw,48px);margin:24px auto 40px}
.content-page h1{font-size:clamp(24px,3.2vw,32px);margin-bottom:6px}
.content-page .lead{color:var(--muted);font-size:16px;margin-bottom:26px}
.content-page h2{font-size:20px;margin:30px 0 12px;padding-top:6px}
.content-page h3{font-size:16.5px;margin:20px 0 8px}
.content-page p{margin-bottom:12px}
.content-page ul.disc{list-style:disc;padding-left:22px;margin-bottom:14px}
.content-page ul.disc li{margin-bottom:7px}
.content-page .note{background:#fbf3e2;border:1px solid #e6cb90;border-radius:14px;padding:14px 18px;
  font-size:14px;margin:14px 0}
.tbl{width:100%;border-collapse:collapse;margin:14px 0;font-size:14px}
.tbl th{background:#f5ecd9;color:var(--blue-dark);text-align:left;padding:11px 14px;font-size:13px;
  text-transform:uppercase;letter-spacing:.4px}
.tbl td{padding:11px 14px;border-bottom:1px solid var(--line);vertical-align:top}
.tbl tr:last-child td{border-bottom:none}
.tbl-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:14px}

/* tabs chính sách */
.tabs{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:24px}
.tab-btn{padding:10px 18px;border-radius:999px;background:var(--bg);font-weight:600;font-size:14px;
  border:1.5px solid transparent}
.tab-btn.on{background:var(--grad);color:#fff}
.tab-pane{display:none}
.tab-pane.on{display:block;animation:fadeUp .3s}
@keyframes fadeUp{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}

/* ---------- liên hệ ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1.2fr;gap:22px;margin:24px auto 40px}
.contact-info,.contact-form{background:#fff;border-radius:22px;box-shadow:var(--shadow);padding:30px}
.ci-item{display:flex;gap:14px;margin-bottom:18px}
.ci-item .ci-ic{width:44px;height:44px;border-radius:13px;background:#f5ecd9;color:var(--blue);
  display:flex;align-items:center;justify-content:center;font-size:19px;flex-shrink:0}
.ci-item b{display:block;font-size:14.5px}
.ci-item span,.ci-item a{font-size:14px;color:var(--muted)}
.ci-item a:hover{color:var(--blue)}
.form-group{margin-bottom:16px}
.form-group label{display:block;font-weight:600;font-size:13.5px;margin-bottom:6px}
.form-group input,.form-group textarea,.form-group select{width:100%;border:1.5px solid var(--line);
  border-radius:13px;padding:12px 15px;font-size:14.5px;outline:none;transition:.2s;background:#fff}
.form-group input:focus,.form-group textarea:focus,.form-group select:focus{border-color:var(--blue);
  box-shadow:0 0 0 4px rgba(169,116,27,.15)}
.map-wrap{border-radius:22px;overflow:hidden;box-shadow:var(--shadow);margin-bottom:40px}
.map-wrap iframe{width:100%;height:380px;border:0;display:block}
@media(max-width:860px){.contact-grid{grid-template-columns:1fr}}

/* ---------- trả góp ---------- */
.calc-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:22px;margin:24px auto 40px}
.calc-form,.calc-result{background:#fff;border-radius:22px;box-shadow:var(--shadow);padding:30px}
.calc-result .cr-total{background:var(--grad);border-radius:18px;color:#fff;padding:22px;margin-bottom:18px}
.calc-result .cr-total span{font-size:13px;opacity:.85}
.calc-result .cr-total b{display:block;font-size:32px;letter-spacing:.5px}
.cr-row{display:flex;justify-content:space-between;padding:11px 4px;border-bottom:1px dashed var(--line);font-size:14.5px}
.cr-row b{font-size:15px}
.range-val{font-weight:800;color:var(--blue)}
input[type=range]{width:100%;accent-color:var(--blue);height:34px}
@media(max-width:860px){.calc-grid{grid-template-columns:1fr}}

/* ---------- modal / drawer / overlay chung ---------- */
.overlay{position:fixed;inset:0;background:rgba(12,13,16,.55);z-index:1100;display:none;
  align-items:center;justify-content:center;padding:20px;backdrop-filter:blur(3px)}
.overlay.open{display:flex}
.modal{background:#fff;border-radius:24px;max-width:820px;width:100%;max-height:90vh;overflow-y:auto;
  position:relative;animation:fadeUp .25s}
.modal-close{position:absolute;top:14px;right:14px;width:38px;height:38px;border-radius:50%;
  background:var(--bg);font-size:16px;display:flex;align-items:center;justify-content:center;z-index:5}
.modal-close:hover{background:var(--red);color:#fff}
.qv-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:10px}
.qv-img{padding:34px;display:flex;align-items:center;justify-content:center;background:#faf5ea;border-radius:24px 0 0 24px}
.qv-img img{max-height:320px;object-fit:contain}
.qv-body{padding:34px 30px}
.qv-body h3{font-size:21px;line-height:1.3;margin-bottom:4px}
.qv-body .qv-sub{color:var(--muted);margin-bottom:12px}
.qv-price{font-size:28px;font-weight:800;color:var(--blue);margin:10px 0 4px}
.qv-note{font-size:12.5px;color:var(--muted);margin-bottom:14px}
.qv-perks{background:var(--bg);border-radius:14px;padding:14px 16px;font-size:13.5px;margin:14px 0}
.qv-perks li{display:flex;gap:8px;margin-bottom:7px}
.qv-perks li::before{content:"✓";color:var(--green);font-weight:800}
.qv-ctas{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:16px}
@media(max-width:720px){.qv-grid{grid-template-columns:1fr}.qv-img{border-radius:24px 24px 0 0;padding:22px}}

/* giỏ hàng */
.cart-drawer{position:fixed;top:0;right:0;bottom:0;width:min(400px,92vw);background:#fff;z-index:1200;
  transform:translateX(105%);transition:.28s cubic-bezier(.4,0,.2,1);display:flex;flex-direction:column;
  box-shadow:-10px 0 40px rgba(12,13,16,.18)}
.cart-drawer.open{transform:none}
.cart-head{padding:18px 22px;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:center}
.cart-head h3{font-size:17px}
.cart-items{flex:1;overflow-y:auto;padding:14px 22px}
.cart-item{display:flex;gap:12px;padding:12px 0;border-bottom:1px dashed var(--line)}
.cart-item img{width:64px;height:64px;object-fit:contain;background:#faf5ea;border-radius:12px;padding:6px;flex-shrink:0}
.cart-item .ci-t{font-size:13.5px;font-weight:600;line-height:1.35}
.cart-item .ci-s{font-size:12px;color:var(--muted)}
.cart-item .ci-p{font-size:14px;font-weight:700;color:var(--blue);margin-top:3px}
.qty-ctrl{display:inline-flex;align-items:center;gap:10px;margin-top:6px}
.qty-ctrl button{width:24px;height:24px;border-radius:8px;background:var(--bg);font-weight:700}
.qty-ctrl button:hover{background:var(--blue);color:#fff}
.ci-remove{margin-left:auto;color:var(--muted);font-size:15px;align-self:flex-start}
.ci-remove:hover{color:var(--red)}
.cart-foot{padding:18px 22px;border-top:1px solid var(--line);background:#fbf7ee}
.cart-total{display:flex;justify-content:space-between;font-size:15px;margin-bottom:12px}
.cart-total b{font-size:20px;color:var(--blue)}
.cart-empty{text-align:center;color:var(--muted);padding:60px 20px}
.cart-empty .e-ic{font-size:46px;margin-bottom:10px}

/* tìm kiếm overlay */
.search-overlay{position:fixed;inset:0;background:rgba(12,13,16,.6);z-index:1150;display:none;
  padding:8vh 20px 20px;backdrop-filter:blur(4px)}
.search-overlay.open{display:block}
.search-panel{max-width:640px;margin:0 auto;background:#fff;border-radius:22px;overflow:hidden;
  display:flex;flex-direction:column;max-height:74vh;animation:fadeUp .22s}
.search-panel .sp-input{display:flex;align-items:center;gap:12px;padding:16px 20px;border-bottom:1px solid var(--line)}
.search-panel input{flex:1;border:none;outline:none;font-size:17px}
.sp-results{overflow-y:auto;padding:8px}
.sp-item{display:flex;gap:12px;padding:10px 14px;border-radius:14px;align-items:center;cursor:pointer}
.sp-item:hover{background:var(--bg)}
.sp-item img{width:52px;height:52px;object-fit:contain;background:#faf5ea;border-radius:10px;padding:4px}
.sp-item .r-t{font-size:14px;font-weight:600}
.sp-item .r-s{font-size:12px;color:var(--muted)}
.sp-item .r-p{margin-left:auto;font-weight:700;color:var(--blue);font-size:14px;white-space:nowrap}
.sp-hint{padding:20px;text-align:center;color:var(--muted);font-size:14px}

/* toast */
.toast{position:fixed;bottom:26px;left:50%;transform:translate(-50%,80px);background:var(--ink);color:#fff;
  padding:13px 22px;border-radius:999px;font-size:14px;font-weight:600;z-index:1300;opacity:0;
  transition:.3s;box-shadow:var(--shadow-lg);display:flex;gap:8px;align-items:center;max-width:92vw}
.toast.show{transform:translate(-50%,0);opacity:1}
.toast .t-ic{color:#e6c06a}

/* responsive header */
@media(max-width:1024px){
  .h-action .tx{display:none}
  .h-action{padding:8px}
}
@media(max-width:860px){
  .main-nav{display:none}
  .menu-toggle{display:flex}
  .search-wrap{display:none}
  .header-main{gap:12px}
}
.mobile-search{display:none;padding:0 0 12px}
@media(max-width:860px){.mobile-search{display:block}}
.mobile-search .search-box{height:42px}

/* tiện ích */
.text-center{text-align:center}
.mt-20{margin-top:20px}
.hidden{display:none!important}

/* trang chi tiết sản phẩm (san-pham.html) */
.pd-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:0;background:#fff;border:1px solid var(--line);border-radius:24px;overflow:hidden}
.pd-img{position:relative;padding:40px;display:flex;align-items:center;justify-content:center;background:#faf5ea}
.pd-img img{max-width:100%;max-height:420px;object-fit:contain}
.pd-body{padding:28px 30px}
.pd-title{font-size:clamp(20px,2.6vw,28px);font-weight:800;line-height:1.25}
.pd-title span{display:block;font-size:.62em;font-weight:600;color:#7a6a4a;margin-top:6px}
.pd-meta{margin-top:10px;font-size:14px;color:#7a6a4a}
.pd-price{font-size:32px;font-weight:800;color:var(--blue);margin:12px 0 4px}
.pd-hotline{margin-top:14px;font-size:14px;color:#5a4a2a}
.pd-hotline a{color:var(--blue);font-weight:700}
.pd-specs{margin:30px 0}
.pd-specs h2{font-size:20px;font-weight:800;margin-bottom:14px}
.pd-specs-table{background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden}
.pd-specs-table table{width:100%;border-collapse:collapse;font-size:14.5px}
.pd-specs-table th{width:190px;text-align:left;padding:12px 16px;background:var(--bg);font-weight:600;color:#5a3d10;vertical-align:top}
.pd-specs-table td{padding:12px 16px}
.pd-specs-table tr+tr th,.pd-specs-table tr+tr td{border-top:1px solid var(--line)}
@media(max-width:760px){.pd-grid{grid-template-columns:1fr}.pd-img{padding:24px}.pd-body{padding:20px}.pd-specs-table th{width:130px}}

/* bộ ảnh trang chi tiết */
.pd-media{display:flex;flex-direction:column;background:#faf5ea}
.pd-img #pdMain{max-width:100%;max-height:420px;object-fit:contain;border-radius:12px}
.pd-thumbs{display:flex;gap:8px;overflow-x:auto;padding:0 18px 18px;scrollbar-width:thin}
.pd-thumb{flex:0 0 66px;width:66px;height:52px;padding:3px;border:2px solid transparent;border-radius:10px;background:#fff;cursor:pointer}
.pd-thumb img{width:100%;height:100%;object-fit:cover;border-radius:7px}
.pd-thumb.on{border-color:var(--blue)}

/* ---------- MPA: gallery + thiết bị trong bộ ---------- */
.gallery-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.gallery-grid a{position:relative;border-radius:18px;overflow:hidden;aspect-ratio:4/3;background:#111;box-shadow:var(--shadow);display:block}
.gallery-grid img{width:100%;height:100%;object-fit:cover;transition:.4s}
.gallery-grid a:hover img{transform:scale(1.05)}
.gallery-grid span{position:absolute;left:0;right:0;bottom:0;padding:26px 14px 12px;color:#fff;font-size:13.5px;font-weight:600;background:linear-gradient(transparent,rgba(0,0,0,.75))}
@media(max-width:860px){.gallery-grid{grid-template-columns:1fr 1fr}}
.parts-list{display:grid;gap:12px}
.part-row{display:grid;grid-template-columns:90px 1fr auto;gap:16px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:16px;padding:12px 14px;box-shadow:var(--shadow);transition:.2s}
.part-row:hover{border-color:#d39733;transform:translateY(-2px)}
.part-row .pt-img{aspect-ratio:1/1;display:flex;align-items:center;justify-content:center;background:#faf5ea;border-radius:12px;padding:6px}
.part-row .pt-img img{max-height:100%;object-fit:contain;mix-blend-mode:multiply}
.part-row .pt-role{font-size:11px;text-transform:uppercase;letter-spacing:.8px;color:var(--muted);font-weight:700;margin-bottom:2px}
.part-row b{font-size:14.5px}
.part-row .pt-qty{text-align:right;font-size:12.5px;color:var(--muted);white-space:nowrap}
.part-row .pt-qty b{display:block;font-size:14px;color:var(--blue)}
@media(max-width:640px){.part-row{grid-template-columns:70px 1fr}.part-row .pt-qty{grid-column:2;text-align:left}}
.pd-img img{mix-blend-mode:multiply}
/* MPA: header mobile gọn hơn (3 nút + logo dài) */
@media(max-width:860px){.h-action:nth-child(2){display:none}.logo-text small{font-size:7.5px;letter-spacing:1.6px}.header-actions{gap:4px}}
@media(max-width:420px){.logo-text b{font-size:17px;letter-spacing:2px}.h-action{padding:6px}.h-action .ic{width:34px;height:34px}}
html,body{overflow-x:hidden}
@media(max-width:480px){.topbar .tb-left span:first-child{display:none}.topbar{font-size:12px}}

/* logo thật MPA */
.logo-img{height:52px;width:auto;display:block}
.site-footer .logo-img{height:60px}
.mobile-drawer .logo-img{height:40px}
@media(max-width:480px){.logo-img{height:40px}}

/* ô danh mục không icon: canh giữa, cao đều */
.cat-tile{display:flex;align-items:center;justify-content:center;min-height:64px;padding:16px 10px}
.cat-tile b{font-size:13.5px}

.mobile-drawer .m-home{display:block;padding:12px 10px;font-weight:600;border-bottom:1px solid var(--line)}

/* dải logo thương hiệu hợp tác */
.brand-band{display:grid;grid-template-columns:auto repeat(4,1fr);align-items:center;justify-items:center;
  gap:14px clamp(14px,2.6vw,40px);background:#fff;border-radius:20px;box-shadow:var(--shadow);padding:22px 26px}
.brand-band a,.brand-band span{display:flex;align-items:center;justify-content:center;width:100%;height:64px}
.brand-band img{max-width:100%;max-height:100%;width:auto;height:auto;object-fit:contain;display:block}
.brand-band a{transition:.2s;opacity:.9}
.brand-band a:hover{transform:translateY(-3px);opacity:1}

/* cỡ từng logo cho đều mắt — cùng canh giữa một đường ngang */
.brand-band .bb-mission img{max-height:46px}
.brand-band .bb-quad img{max-height:42px}
.brand-band .bb-rf img{max-height:62px}
.brand-band .bb-xd img{max-height:34px}
.brand-band .bb-jbl img{max-height:58px}
.brand-band .bb-bose img{max-height:30px}
.brand-band .bb-yamaha img{max-height:36px}
.brand-band .bb-ev img{max-height:40px}

.brand-band .bb-label{justify-self:start;height:auto;display:block;width:112px;
  font-size:10.5px;text-transform:uppercase;font-weight:700;letter-spacing:1.2px;color:var(--muted);line-height:1.5;
  border-right:2px solid var(--line);padding-right:18px;white-space:nowrap}

@media(max-width:820px){
  .brand-band{grid-template-columns:repeat(2,1fr);gap:16px 18px;padding:18px 14px}
  .brand-band a,.brand-band span{height:52px}
  .brand-band .bb-label{grid-column:1/-1;justify-self:center;text-align:center;
    border-right:0;border-bottom:1px solid var(--line);padding:0 0 8px;width:100%;white-space:normal}
  .brand-band .bb-rf img{max-height:48px}
  .brand-band .bb-jbl img{max-height:44px}
  .brand-band .bb-mission img{max-height:34px}
  .brand-band .bb-quad img{max-height:32px}
  .brand-band .bb-xd img{max-height:26px}
  .brand-band .bb-bose img{max-height:22px}
  .brand-band .bb-yamaha img{max-height:27px}
  .brand-band .bb-ev img{max-height:30px}
}

.prod-old{font-size:12px;color:var(--muted);text-decoration:line-through;margin-top:-2px}
.prod-old .save{color:#b5173f;font-weight:700;text-decoration:none;margin-left:5px}
.pd-old{font-size:16px;color:var(--muted);text-decoration:line-through;margin:-6px 0 6px}
.pd-old .save{color:#b5173f;font-weight:800;text-decoration:none;margin-left:8px;font-size:14px}
.pd-gifts{background:#fffdf6;border:1px solid #e6cb90;border-left:4px solid var(--blue);border-radius:12px;padding:12px 16px;margin:14px 0;font-size:13.5px}
.pd-gifts b{display:block;text-transform:uppercase;font-size:11.5px;letter-spacing:.6px;margin-bottom:6px;color:var(--ink)}
.pd-gifts li{margin:3px 0 3px 18px;list-style:"🎁  "}

/* ---------- Tin tức ---------- */
.news-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(270px,1fr));gap:18px}
.news-card{display:flex;flex-direction:column;background:#fff;border:1px solid #e7dcc6;border-radius:12px;overflow:hidden;color:inherit;transition:.18s}
.news-card:hover{box-shadow:0 10px 26px rgba(45,32,3,.13);transform:translateY(-2px);border-color:var(--blue)}
.nc-img{aspect-ratio:16/10;background:#f5ecd9;display:flex;align-items:center;justify-content:center;overflow:hidden}
.nc-img img{width:100%;height:100%;object-fit:cover}
.nc-img span{font:800 26px/1 Montserrat,sans-serif;color:#c9b07a}
.nc-body{padding:14px 15px 16px;display:flex;flex-direction:column;gap:7px;flex:1}
.nc-body time{font-size:12.5px;color:#8a7a57;font-weight:600}
.nc-body h3{font-size:16.5px;line-height:1.35;margin:0;color:var(--ink)}
.nc-body p{font-size:14px;color:#5c5240;margin:0;flex:1;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.nc-more{font-size:13.5px;font-weight:700;color:var(--blue)}
.article{max-width:820px;margin:0 auto;background:#fff;border:1px solid #e7dcc6;border-radius:14px;padding:26px 30px 34px}
.article h1{font-size:28px;line-height:1.28;margin:6px 0 10px;color:var(--ink)}
.article .a-meta{font-size:13px;color:#8a7a57;font-weight:600}
.article .a-cover{width:100%;border-radius:10px;margin:16px 0 8px}
.article-body{font-size:16px;line-height:1.75;color:#3d3524}
.article-body h2{font-size:20px;margin:24px 0 8px;color:var(--ink)}
.article-body h3{font-size:17px;margin:18px 0 6px;color:var(--ink)}
.article-body p{margin:0 0 12px}
.article-body ul{margin:0 0 14px;padding-left:22px}
.article-body li{margin-bottom:6px}
@media (max-width:640px){.article{padding:18px 16px 26px}.article h1{font-size:22px}}