/* ===================== NOVA Store — INS Pink-White Theme ===================== */
:root{
  --brand:#D98AA0;          /* soft pale rose */
  --brand-strong:#E08BA2;   /* slightly deeper rose for buttons/active */
  --brand-2:#E89BB0;       /* pale rose for links */
  --accent:#F58AA6;         /* pastel coral pink — prices/highlights */
  --accent-soft:#FFEDF2;    /* very pale pink fill */
  --ink:#4A3A3E;           /* warm dark */
  --muted:#A99B9E;
  --line:#F6E6EC;           /* light pink border */
  --bg:#FFFBFD;             /* almost-white pink */
  --soft:#FDF1F5;           /* blush */
  --radius:18px;
  --shadow:0 10px 30px rgba(217,138,160,.10);
}
*{box-sizing:border-box;}
html,body{margin:0;padding:0;}
body{
  font-family:"Segoe UI",Roboto,"PingFang SC","Microsoft YaHei",Helvetica,Arial,sans-serif;
  color:var(--ink); background:var(--bg); line-height:1.6;
}
a{color:inherit;text-decoration:none;}
.container{width:100%;max-width:1920px;margin:0 auto;padding:0 40px;}
.muted{color:var(--muted);}

/* ---------- Header ---------- */
#site-header{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50;
  box-shadow:0 4px 18px rgba(194,91,124,.06);}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:18px 40px;max-width:1920px;margin:0 auto;}
.brand-block{display:flex;flex-direction:column;}
.brand{font-size:34px;font-weight:800;letter-spacing:3px;color:var(--brand);}
.brand-logo{height:64px;width:auto;display:block;transition:transform .2s;}
.brand.logo-brand:hover .brand-logo{transform:scale(1.03);}
.tagline{font-size:13px;color:var(--muted);letter-spacing:.5px;}
.header-contact{display:flex;align-items:center;gap:14px;flex-wrap:wrap;}
.contact-pill{display:inline-flex;align-items:center;gap:8px;background:var(--soft);border:1px solid var(--line);
  padding:8px 14px;border-radius:999px;font-size:14px;color:var(--ink);transition:.2s;}
.contact-pill:hover{background:var(--accent-soft);}
.contact-pill .ci{font-size:16px;}
.copy-email{cursor:pointer;font-family:inherit;color:var(--ink);}
.copy-ic{font-size:13px;opacity:.6;margin-left:2px;}
.copy-email:hover .copy-ic{opacity:1;}
.copy-email-link{cursor:pointer;}
.qr-pill{cursor:pointer;padding:4px 10px;position:relative;}
.qr-mini{width:34px;height:34px;border-radius:8px;object-fit:cover;display:block;transition:transform .2s;}
.qr-mini:hover{transform:scale(1.18);}
.lang-btn{background:var(--brand-strong);color:#fff;border:none;padding:9px 14px;border-radius:999px;
  font-size:14px;cursor:pointer;font-weight:600;transition:.2s;letter-spacing:.5px;
  display:inline-flex;align-items:center;gap:6px;}
.lang-btn:hover{background:var(--accent);}
.lang-ic{font-size:15px;line-height:1;}
.lang-arrow{font-size:10px;opacity:.7;}
.lang-wrap{position:relative;}
.lang-menu{position:absolute;top:calc(100% + 6px);right:0;background:#fff;border:1px solid var(--line);
  border-radius:14px;box-shadow:0 10px 28px rgba(217,138,160,.18);z-index:60;
  min-width:160px;padding:6px 0;overflow:hidden;max-height:380px;overflow-y:auto;}
.lang-opt{display:block;width:100%;text-align:left;padding:9px 18px;border:none;background:transparent;
  font-size:14px;color:var(--ink);cursor:pointer;transition:.12s;font-family:inherit;}
.lang-opt:hover{background:var(--soft);}
.lang-opt.active{background:var(--accent-soft);color:var(--brand-strong);font-weight:700;}

/* ---------- Layout ---------- */
.layout{display:grid;grid-template-columns:260px 1fr;gap:36px;padding:40px 0 60px;}
.sidebar{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px;align-self:start;
  box-shadow:var(--shadow);position:sticky;top:88px;max-height:calc(100vh - 104px);overflow-y:auto;overscroll-behavior:contain;}
.sidebar h3{margin:0 0 14px;font-size:14px;text-transform:uppercase;letter-spacing:1px;color:var(--muted);}
.cat-list{list-style:none;margin:0;padding:0;}
.cat-sub{list-style:none;margin:0;padding:0;}
.cat-row{position:relative;display:flex;align-items:center;gap:6px;width:100%;box-sizing:border-box;padding-left:24px;}
.cat-row.depth-1{padding-left:24px;}
.cat-row.depth-2{padding-left:44px;}
.cat-row.depth-3{padding-left:24px;}
.caret{position:absolute;left:0;top:50%;transform:translateY(-50%);width:18px;height:18px;display:inline-flex;align-items:center;justify-content:center;
  font-size:11px;color:var(--muted);cursor:pointer;transition:transform .15s;user-select:none;}
.caret.empty{cursor:default;visibility:hidden;}
.caret.open{transform:translateY(-50%) rotate(90deg);color:var(--brand-strong);}
.cat-btn{flex:1;min-width:0;text-align:left;background:transparent;border:none;padding:5px 8px;border-radius:10px;
  display:flex;align-items:center;justify-content:space-between;gap:8px;
  font-size:15px;color:var(--ink);cursor:pointer;transition:.15s;}
.cat-name{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.cat-count{flex:0 0 auto;font-size:11px;font-weight:600;line-height:1.6;color:var(--muted);
  background:var(--soft);border-radius:999px;padding:0 8px;min-width:20px;text-align:center;}
.cat-btn:hover .cat-count{background:#f3dde6;}
.cat-row.depth-0 .cat-btn{font-size:15px;font-weight:600;}
.cat-row.depth-1 .cat-btn{font-size:13px;font-weight:400;color:var(--muted);}
.cat-row.depth-2 .cat-btn{font-size:12.5px;font-weight:400;color:var(--muted);}
.cat-btn.in-path .cat-count,.cat-row .cat-btn.in-path .cat-count{color:var(--brand-strong);background:#f7e2ea;}
.cat-btn.in-path,.cat-row .cat-btn.in-path{color:var(--brand-strong);font-weight:600;}
.cat-btn:hover{background:var(--soft);}
.cat-btn.active,.cat-row.depth-1 .cat-btn.active,.cat-row.depth-2 .cat-btn.active{background:var(--brand-strong);color:#fff;font-weight:600;box-shadow:0 6px 16px rgba(224,139,162,.25);}
.cat-btn.active .cat-count{background:rgba(255,255,255,.22);color:#fff;}

/* ---------- Product grid ---------- */
.page-head{padding:22px 0 16px;}
.page-head h1{font-size:34px;margin:0 0 6px;color:var(--brand);letter-spacing:1px;}
.page-head p{margin:0;}
.product-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:26px;}
.card{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  box-shadow:var(--shadow);transition:transform .18s,box-shadow .18s;display:flex;flex-direction:column;}
.card:hover{transform:translateY(-4px);box-shadow:0 16px 36px rgba(194,91,124,.18);}
.card-img{width:100%;height:240px;object-fit:cover;display:block;background-color:var(--soft);}
.badge{position:absolute;top:14px;left:14px;background:var(--accent);color:#fff;font-size:12px;font-weight:600;
  padding:5px 12px;border-radius:999px;box-shadow:0 4px 10px rgba(255,122,156,.4);}
.card-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-title{font-size:18px;margin:0;color:var(--brand);}
.card-intro{font-size:14px;margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-meta{display:flex;justify-content:space-between;align-items:baseline;margin-top:auto;}
.price b{font-size:20px;color:var(--accent);}
.moq{font-size:13px;color:var(--muted);}
.card-cta{color:var(--brand-2);font-weight:600;font-size:14px;}
.empty{padding:60px;text-align:center;color:var(--muted);}

/* ---------- Pagination ---------- */
.pagination-bar{margin-top:28px;padding:16px 0;}
.pg-controls{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:14px;}
.pg-sizes{display:flex;align-items:center;gap:8px;}
.pg-label{font-size:13px;color:var(--muted);font-weight:600;}
.pg-size{background:transparent;border:1px solid var(--line);color:var(--ink);padding:7px 15px;
  border-radius:10px;font-size:14px;font-weight:600;cursor:pointer;transition:.15s;font-family:inherit;}
.pg-size:hover{border-color:var(--brand);color:var(--brand);}
.pg-size.active{background:var(--brand-strong);color:#fff;border-color:var(--brand-strong);}
.pg-nav{display:flex;align-items:center;gap:10px;}
.pg-btn{background:transparent;border:1px solid var(--line);color:var(--ink);padding:7px 18px;
  border-radius:10px;font-size:14px;font-weight:600;cursor:pointer;transition:.15s;font-family:inherit;}
.pg-btn:hover:not(:disabled){border-color:var(--brand);color:var(--brand);}
.pg-btn:disabled{opacity:.4;cursor:not-allowed;}
.pg-info{font-size:14px;font-weight:600;color:var(--brand-strong);min-width:60px;text-align:center;}

/* ---------- Detail ---------- */
.back-link{display:inline-block;margin:28px 0 10px;color:var(--brand-2);font-weight:600;}
.container.detail-page{max-width:1280px;}
.detail-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;padding-bottom:60px;}
.gallery-col{max-width:720px;}
.gallery-col .main-img{width:100%;max-width:600px;aspect-ratio:1/1;object-fit:contain;background-color:var(--soft);border-radius:var(--radius);border:1px solid var(--line);box-shadow:var(--shadow);display:block;margin:0 auto;}
.thumbs{display:flex;flex-wrap:wrap;gap:12px;margin:14px 0 0;max-width:600px;}
.thumb{width:84px;height:84px;border-radius:14px;border:2px solid var(--line);background-size:cover;background-position:center;cursor:pointer;padding:0;transition:.15s;}
.thumb:hover{transform:scale(1.04);}
.thumb.active{border-color:var(--accent);}
.video-box{margin-top:20px;}
.watch-video-btn{display:flex;align-items:center;justify-content:center;gap:12px;width:100%;max-width:720px;background:var(--brand-strong);color:#fff;border:none;padding:16px 24px;border-radius:var(--radius,14px);font-size:16px;font-weight:600;cursor:pointer;transition:background .2s,transform .12s;box-shadow:var(--shadow);}
.watch-video-btn:hover{background:var(--accent);}
.watch-video-btn:active{transform:scale(.98);}
.watch-video-btn .play-tri{width:0;height:0;border-left:15px solid #fff;border-top:10px solid transparent;border-bottom:10px solid transparent;}
.video-box h4,.info-col h4{margin:24px 0 10px;font-size:16px;color:var(--brand);border-left:4px solid var(--accent);padding-left:10px;letter-spacing:.5px;}
#prod-video{width:min(100%,720px);max-width:720px;border-radius:var(--radius);border:1px solid var(--line);background:#000;display:block;}
.detail-title{font-size:30px;margin:0 0 10px;color:var(--brand);letter-spacing:.5px;}
.detail-intro{margin:0 0 10px;color:var(--muted);}
.qty-block{background:var(--soft);border:1px solid var(--line);border-radius:var(--radius);padding:22px;margin:18px 0;box-shadow:var(--shadow);}
.qty-block h4{margin:0 0 12px;color:var(--brand);}
.qty-block label{display:block;font-weight:600;margin-bottom:10px;color:var(--brand);}
#qty-input{width:160px;padding:12px 14px;font-size:18px;border:1px solid var(--line);border-radius:12px;background:#fff;}
.price-readout{display:flex;gap:26px;align-items:baseline;margin-top:16px;flex-wrap:wrap;}
.price-readout b{font-size:22px;color:var(--accent);}
.tier-tag{width:100%;margin-top:6px;font-size:13px;color:var(--brand-2);font-weight:600;}
.tier-table,.spec-table{width:100%;border-collapse:collapse;font-size:15px;overflow:hidden;border-radius:12px;}
.tier-table th,.tier-table td,.spec-table th,.spec-table td{border:1px solid var(--line);padding:12px 14px;text-align:left;}
.tier-table th{background:var(--soft);color:var(--muted);font-weight:600;width:60%;}
.tier-table .t-price{color:var(--accent);font-weight:700;}
.spec-table th{background:var(--soft);color:var(--muted);font-weight:600;width:42%;}
.detail-desc{margin:0;color:var(--ink);}

/* color + quantity selector */
.color-dot{width:22px;height:22px;border-radius:50%;flex:0 0 auto;box-shadow:inset 0 0 0 1px rgba(0,0,0,.08);}

/* 1688-style clickable shade selector */
.shade-grid{display:flex;flex-wrap:wrap;gap:10px;margin:8px 0 6px;}
.shade-pill{display:flex;flex-direction:column;align-items:stretch;gap:4px;width:128px;border:2px solid var(--line);border-radius:12px;background:#fff;padding:8px 6px;cursor:pointer;transition:.15s;font-family:inherit;box-sizing:border-box;}
.shade-pill:hover{transform:translateY(-2px);border-color:var(--accent);}
.shade-pill.active{border-color:var(--brand-strong);box-shadow:0 0 0 2px rgba(214,51,108,.18);}
.shade-bg{display:block;width:100%;height:auto;aspect-ratio:1/1;object-fit:cover;border-radius:8px;}
.shade-dot{display:block;width:100%;aspect-ratio:1/1;border-radius:8px;box-shadow:inset 0 0 0 1px rgba(0,0,0,.08);}
.shade-name{font-size:11px;color:var(--muted);text-align:center;line-height:1.25;word-break:break-word;}
.shade-pill.active .shade-name{color:var(--brand);font-weight:600;}
/* in-pill quantity stepper */
.shade-pill .qty-stepper{width:100%;margin-top:2px;}
.shade-pill .color-qty{width:100%;min-width:0;padding:6px 4px;font-size:14px;}
.shade-pill .step-btn{width:30px;height:32px;font-size:18px;}
/* shade pill badge: shows total qty per color (for phone case product) */
.shade-img-wrap{position:relative;display:block;width:100%;}
.shade-badge{position:absolute;top:-6px;right:-6px;min-width:22px;height:22px;border-radius:50%;background:var(--brand);color:#fff;font-size:12px;font-weight:700;display:flex;align-items:center;justify-content:center;box-shadow:0 2px 6px rgba(0,0,0,.2);pointer-events:none;}
/* 1688-style model qty grid (phone case variants) */
.model-qty-grid{margin:8px 0 14px;border:1px solid var(--line);border-radius:12px;overflow:hidden;}
.model-qty-grid h4{margin:8px 12px 4px;font-size:14px;color:var(--ink);}
.model-qty-rows{display:flex;flex-direction:column;gap:4px;padding:6px 10px 10px;max-height:400px;overflow-y:auto;}
.model-qty-row{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:6px;border-radius:8px;transition:.1s;}
.model-qty-row:hover{background:rgba(0,0,0,.02);}
.model-qty-label{font-size:13px;font-weight:500;color:var(--ink);flex:1 1 auto;min-width:0;}
.model-qty-row .qty-stepper{flex-shrink:0;}
.model-qty-badge{display:flex;align-items:center;justify-content:center;min-width:22px;height:22px;padding:0 7px;border-radius:11px;background:var(--brand);color:#fff;font-size:12px;font-weight:700;box-shadow:0 2px 6px rgba(0,0,0,.2);pointer-events:none;margin-right:2px;flex-shrink:0;}
.model-qty{width:70px;padding:6px 6px;font-size:14px;border:none;border-radius:0;background:#fff;text-align:center;}
.model-qty:focus{outline:none;}
.model-step-btn{width:30px;height:32px;font-size:18px;border:none;background:transparent;cursor:pointer;font-weight:600;color:var(--brand);}
.model-step-btn:hover{background:var(--bg);}
/* cart model tag (legacy per-entry model, kept for compat) */
.qty-stepper{display:inline-flex;align-items:center;gap:0;border:1px solid var(--line);border-radius:10px;background:#fff;overflow:hidden;}
.color-qty{width:90px;padding:9px 8px;font-size:16px;border:none;border-radius:0;background:#fff;text-align:center;}
.color-qty:focus{outline:none;}
.step-btn{width:36px;height:38px;border:none;background:var(--soft);color:var(--brand);font-size:20px;font-weight:700;cursor:pointer;transition:.15s;line-height:1;}
.step-btn:hover{background:var(--accent-soft);color:var(--accent);}
.step-btn:active{transform:scale(.94);}
.tier-table tr.active{background:var(--accent-soft);}
.tier-table tr.active .t-price{color:var(--accent);}
.moq-warn{width:100%;margin-top:8px;color:#c0392b;font-size:13px;font-weight:600;}

/* ---------- Footer ---------- */
#site-footer{background:linear-gradient(135deg,#FCE4EE 0%, #FFF4F8 100%);color:var(--ink);margin-top:40px;border-top:1px solid var(--line);}
.footer-inner{display:grid;grid-template-columns:1fr 1fr;gap:30px;padding:44px 40px;align-items:start;}
.footer-contact span{display:block;margin-bottom:8px;font-size:14px;}
.footer-contact a{color:var(--brand-2);font-weight:600;}
.qr-footer{width:110px;height:110px;border-radius:12px;margin-top:8px;background:#fff;padding:4px;box-shadow:var(--shadow);cursor:pointer;transition:transform .2s;}
.qr-footer:hover{transform:scale(1.08);}
.footer-note{font-size:13px;color:var(--muted);text-align:right;}
.footer-note .muted{color:var(--muted);}

/* ---------- Toast ---------- */
.nova-toast{position:fixed;left:50%;bottom:40px;transform:translateX(-50%) translateY(20px);
  background:#fff;color:var(--ink);border:1px solid var(--line);
  box-shadow:0 16px 40px rgba(217,138,160,.32);border-radius:22px;
  padding:18px 22px;text-align:center;font-size:15px;font-weight:600;
  display:flex;flex-direction:column;align-items:center;gap:10px;
  opacity:0;pointer-events:none;transition:opacity .25s,transform .25s;z-index:2000;max-width:92vw;width:280px;}
.nova-toast.show{opacity:1;transform:translateX(-50%) translateY(0);pointer-events:auto;}
.nova-toast .toast-head{display:flex;align-items:center;justify-content:center;gap:10px;}
.nova-toast .toast-ic{display:inline-flex;align-items:center;justify-content:center;
  width:24px;height:24px;border-radius:50%;background:var(--brand-strong);color:#fff;font-size:14px;flex:0 0 auto;}
.nova-toast .toast-qr-wrap{display:flex;flex-direction:column;align-items:center;gap:8px;}
.nova-toast .toast-qr{width:120px;height:120px;border-radius:14px;border:1px solid var(--line);object-fit:cover;cursor:pointer;transition:transform .2s;}
.nova-toast .toast-qr:hover{transform:scale(1.05);}
.nova-toast .toast-caption{font-size:13px;color:var(--muted);font-weight:500;}

/* ---------- QR lightbox ---------- */
.qr-lightbox{position:fixed;inset:0;background:rgba(74,58,62,.72);display:flex;align-items:center;justify-content:center;z-index:3000;
  opacity:0;pointer-events:none;transition:opacity .25s;backdrop-filter:blur(4px);}
.qr-lightbox.show{opacity:1;pointer-events:auto;}
.qr-lightbox-inner{position:relative;background:#fff;border-radius:22px;padding:28px;box-shadow:0 24px 70px rgba(0,0,0,.25);text-align:center;max-width:90vw;}
.qr-lightbox img{width:320px;height:320px;max-width:70vmin;max-height:70vmin;border-radius:16px;border:1px solid var(--line);object-fit:cover;}
.qr-lightbox-caption{margin-top:14px;font-size:15px;color:var(--muted);font-weight:500;}
.qr-lightbox-close{position:absolute;top:-14px;right:-14px;width:36px;height:36px;border-radius:50%;border:none;background:var(--brand-strong);color:#fff;
  font-size:20px;cursor:pointer;box-shadow:0 6px 16px rgba(217,138,160,.35);transition:.2s;}
.qr-lightbox-close:hover{background:var(--accent);transform:scale(1.08);}
.qr-lb-wa{margin-top:14px;width:100%;padding:13px 10px;border:none;border-radius:14px;background:#25D366;color:#fff;font-size:15px;font-weight:700;cursor:pointer;transition:.18s;}
.qr-lb-wa:hover{background:#1ebe5a;}

/* ---------- Contact modal ---------- */
.contact-modal{position:fixed;inset:0;background:rgba(74,58,62,.6);display:flex;align-items:flex-start;justify-content:flex-start;z-index:3000;
  opacity:0;pointer-events:none;transition:opacity .25s;backdrop-filter:blur(4px);padding:90px 40px 20px;overflow-y:auto;}
.contact-modal.show{opacity:1;pointer-events:auto;}
.contact-modal-card{position:relative;background:#fff;border-radius:22px;padding:30px 28px;box-shadow:0 24px 70px rgba(0,0,0,.25);width:420px;max-width:94vw;}
.contact-modal-close{position:absolute;top:-14px;right:-14px;width:36px;height:36px;border-radius:50%;border:none;background:var(--brand-strong);color:#fff;
  font-size:20px;cursor:pointer;box-shadow:0 6px 16px rgba(217,138,160,.35);transition:.2s;}
.contact-modal-close:hover{background:var(--accent);transform:scale(1.08);}
.contact-modal-title{margin:0 0 6px;font-size:22px;color:var(--brand);letter-spacing:.5px;}
.contact-modal-note{margin:0 0 18px;font-size:13px;color:var(--muted);}
.contact-field{margin-bottom:14px;}
.contact-field label{display:block;font-size:13px;font-weight:600;color:var(--brand);margin-bottom:6px;}
.contact-field input,.contact-field textarea{width:100%;padding:11px 14px;font-size:15px;border:1px solid var(--line);border-radius:12px;background:#fff;font-family:inherit;resize:vertical;box-sizing:border-box;}
.contact-field input:focus,.contact-field textarea:focus{outline:none;border-color:var(--accent);}
.contact-modal-actions{display:flex;gap:12px;margin-top:18px;}
.cm-btn{flex:1;padding:13px 10px;border:none;border-radius:14px;font-size:15px;font-weight:700;cursor:pointer;transition:.18s;color:#fff;}
.cm-wa{background:#25D366;}
.cm-wa:hover{background:#1ebe5a;}
.cm-email{background:var(--brand-strong);}
.cm-email:hover{background:var(--accent);}
.cm-submit{background:var(--brand);font-size:16px;padding:14px 10px;}
.cm-submit:hover{background:var(--brand-strong);}
.contact-modal-copy{display:block;text-align:center;margin-top:16px;font-size:13px;color:var(--brand-2);font-weight:600;cursor:pointer;}

/* ---------- Cart icon in header ---------- */
.cart-link{position:relative;display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;
  border-radius:999px;background:var(--soft);border:1px solid var(--line);text-decoration:none;transition:.2s;}
.cart-link:hover{background:var(--accent-soft);}
.cart-ic{font-size:20px;line-height:1;}
.cart-badge{position:absolute;top:-4px;right:-4px;min-width:20px;height:20px;padding:0 5px;border-radius:999px;
  background:var(--brand-strong);color:#fff;font-size:12px;font-weight:700;display:inline-flex;align-items:center;justify-content:center;
  box-shadow:0 2px 6px rgba(224,139,162,.4);}

/* ---------- Add to cart (detail) ---------- */
.detail-cart-actions{display:flex;align-items:center;gap:16px;margin-top:18px;flex-wrap:wrap;}

/* ---------- related products on detail page ---------- */
.related-section{margin-top:54px;padding-top:34px;border-top:1px solid var(--line);}
.related-title{font-size:26px;font-weight:800;margin:0 0 22px;color:var(--ink);letter-spacing:.3px;}
.related-grid{margin-top:0;}
.add-cart-btn{background:var(--brand-strong);color:#fff;border:none;padding:14px 30px;border-radius:14px;
  font-size:16px;font-weight:700;cursor:pointer;transition:.18s;font-family:inherit;box-shadow:0 6px 16px rgba(224,139,162,.28);}
.add-cart-btn:hover{background:var(--accent);}
.add-cart-btn:active{transform:scale(.97);}
.add-cart-btn.disabled{background:#d9d9d9;color:#fff;cursor:not-allowed;box-shadow:none;opacity:.85;}
.add-cart-btn.disabled:hover{background:#d9d9d9;}
.add-cart-btn.disabled:active{transform:none;}
.view-cart-link{color:var(--brand-2);font-weight:600;text-decoration:none;font-size:15px;}
.view-cart-link:hover{color:var(--brand-strong);}

/* ---------- Cart page ---------- */
.cart-sheet{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:34px 38px;
  box-shadow:var(--shadow);margin:24px 0;}
.cart-sheet-head{display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);padding-bottom:18px;margin-bottom:20px;}
.cart-logo{height:52px;width:auto;object-fit:contain;}
.cart-head-meta{text-align:right;font-size:14px;}
.cart-title{margin:0 0 4px;font-size:28px;color:var(--brand-strong);}
.cart-sub{margin:0 0 20px;font-size:14px;}
.cart-table{width:100%;border-collapse:collapse;font-size:15px;}
.cart-table thead th{text-align:left;padding:12px 10px;border-bottom:2px solid var(--line);color:var(--muted);
  font-size:13px;text-transform:uppercase;letter-spacing:.5px;font-weight:700;}
.cart-table tbody td{padding:16px 10px;border-bottom:1px solid var(--line);vertical-align:middle;}
.cart-prod{display:flex;align-items:center;gap:14px;min-width:230px;}
.cart-thumb{width:64px;height:64px;border-radius:12px;background-size:cover;background-position:center;background-color:var(--soft);flex:0 0 64px;}
.cart-prod-info{display:flex;flex-direction:column;gap:4px;}
.cart-prod-name{font-weight:700;color:var(--ink);text-decoration:none;}
.cart-prod-name:hover{color:var(--brand-strong);}
.cart-moq-warn{font-size:12px;color:#d98324;font-weight:600;}
.cart-colors{display:flex;flex-direction:column;gap:6px;}
.cart-color{display:inline-flex;align-items:center;gap:7px;font-size:14px;color:var(--ink);}
.cart-color .color-dot{width:14px;height:14px;border-radius:50%;display:inline-block;}
.cart-qty-cell{font-weight:700;}
.cart-unit{color:var(--muted);}
.cart-subtotal{font-weight:700;color:var(--accent);font-size:16px;}
.cart-remove{width:30px;height:30px;border:none;border-radius:50%;background:var(--soft);color:var(--muted);
  font-size:20px;line-height:1;cursor:pointer;transition:.15s;}
.cart-remove:hover{background:#ffe0e6;color:var(--brand-strong);}
.cart-summary{margin-top:22px;padding-top:18px;border-top:2px solid var(--line);max-width:340px;margin-left:auto;}
.cart-sum-line{display:flex;justify-content:space-between;align-items:baseline;padding:6px 0;font-size:15px;}
.cart-sum-line b{font-size:18px;}
.cart-grand b{font-size:26px;color:var(--accent);}
.cart-tier-note{font-size:12px;margin-top:6px;text-align:right;}
.cart-contact{margin-top:26px;padding-top:22px;border-top:1px dashed var(--line);}
.cart-contact-title{font-size:13px;text-transform:uppercase;letter-spacing:1px;color:var(--muted);font-weight:700;margin-bottom:12px;}
.cart-contact-body{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;}
.cart-contact-lines{font-size:15px;line-height:1.9;}
.cart-qr{width:110px;height:110px;border-radius:14px;border:1px solid var(--line);object-fit:cover;cursor:pointer;transition:transform .2s;}
.cart-qr:hover{transform:scale(1.05);}
.cart-disclaimer{margin-top:18px;font-size:12px;}
.cart-actions{display:flex;justify-content:space-between;align-items:center;gap:16px;margin:0 0 40px;flex-wrap:wrap;}
.cart-save-btn{background:var(--brand-strong);color:#fff;border:none;padding:13px 26px;border-radius:14px;
  font-size:15px;font-weight:700;cursor:pointer;transition:.18s;font-family:inherit;box-shadow:0 6px 16px rgba(224,139,162,.28);}
.cart-save-btn:hover{background:var(--accent);}
.cart-save-btn:active{transform:scale(.97);}
.cart-save-btn.disabled{background:#d9d9d9;cursor:not-allowed;box-shadow:none;opacity:.85;}
.cart-save-btn.disabled:hover{background:#d9d9d9;}
.cart-continue-btn{color:var(--brand-2);font-weight:700;text-decoration:none;font-size:15px;}
.cart-continue-btn:hover{color:var(--brand-strong);}
.cart-clear-btn{background:transparent;border:1px solid var(--line);color:var(--muted);padding:10px 20px;
  border-radius:12px;font-size:14px;font-weight:600;cursor:pointer;transition:.15s;font-family:inherit;}
.cart-clear-btn:hover{border-color:var(--brand-strong);color:var(--brand-strong);}
.cart-empty{text-align:center;padding:80px 20px;}
.cart-empty-ic{font-size:56px;margin-bottom:16px;}
.cart-empty p{font-size:17px;color:var(--muted);margin-bottom:22px;}

/* ---------- Responsive ---------- */
@media (max-width:1100px){
  .detail-grid{grid-template-columns:1fr;gap:30px;}
  .layout{grid-template-columns:1fr;}
  .sidebar{width:100%;position:static;top:auto;max-height:none;overflow:visible;align-self:stretch;}
  .footer-inner{grid-template-columns:1fr;padding:22px 18px;}
}
@media (max-width:640px){
  .container{padding:0 18px;}
  .header-inner{flex-direction:column;align-items:flex-start;gap:14px;padding:18px 18px;}
  .brand{font-size:28px;}
  .page-head h1{font-size:26px;}
  .product-grid{grid-template-columns:1fr;}
  .color-list{grid-template-columns:1fr;}
  .cart-sheet{padding:22px 18px;}
  .cart-table thead{display:none;}
  .cart-table tbody td{display:block;padding:8px 0;border:none;}
  .cart-table tbody tr{display:block;border-bottom:1px solid var(--line);padding:14px 0;}
  .cart-summary{max-width:100%;}
  .contact-modal{padding:90px 18px 20px;}
}

/* ============ back-to-top floating button ============ */
.back-to-top{
  position:fixed;right:20px;bottom:24px;z-index:999;
  width:46px;height:46px;border-radius:50%;border:none;cursor:pointer;
  background:rgba(10,20,35,.72);color:#fff;font-size:22px;line-height:1;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 4px 14px rgba(0,0,0,.25);
  transition:background .2s,transform .2s,opacity .2s;
  opacity:1;padding:0;
}
.back-to-top:hover{background:rgba(10,20,35,.9);transform:translateY(-2px);}
.back-to-top[hidden]{display:none;opacity:0;pointer-events:none;}