:root{
  --bg:#f4f7fb;
  --surface:#ffffff;
  --surface-2:#f8fbff;
  --line:#dde7f3;
  --text:#112033;
  --muted:#64748b;
  --blue:#1f6dff;
  --navy:#0f172a;
  --accent:#0ea5e9;
  --green:#12b981;
  --shadow:0 16px 40px rgba(15,23,42,.08);
  --radius:18px;
  --container:min(1440px, calc(100% - 40px));
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Inter,"Noto Sans TC",system-ui,sans-serif;color:var(--text);background:linear-gradient(180deg,#f3f7fb 0%,#edf3f9 100%)}
a{text-decoration:none;color:inherit} img{display:block;max-width:100%}
button,input,select,textarea{font:inherit}
.container{width:var(--container);margin:0 auto}
.muted{color:var(--muted)}
.utility{background:#0b1220;color:#d6e2f3;font-size:.92rem}
.utility .inner{min-height:40px;display:flex;align-items:center;justify-content:space-between;gap:18px}
.utility-links{display:flex;gap:18px;flex-wrap:wrap}
.header-main{background:rgba(255,255,255,.92);backdrop-filter:blur(16px);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:60}
.header-main .inner{display:grid;grid-template-columns:auto 1fr auto;gap:20px;align-items:center;min-height:88px}
.brand{display:flex;align-items:center;gap:14px}
.brand-mark{width:54px;height:54px;border-radius:16px;background:linear-gradient(135deg,#0ea5e9,#1f6dff);display:grid;place-items:center;color:#fff;font-size:1.45rem;font-weight:900;box-shadow:0 14px 28px rgba(31,109,255,.25)}
.brand-copy strong{display:block;font-size:1.5rem;line-height:1}.brand-copy span{display:block;color:var(--muted);margin-top:4px}
.search-row{display:flex;align-items:center;gap:12px}
.catalog-trigger{min-height:54px;padding:0 18px;border-radius:14px;border:none;background:var(--navy);color:#fff;font-weight:800;cursor:pointer}
.search-wrap{position:relative;flex:1}
.search-wrap input{width:100%;min-height:54px;border-radius:14px;border:1px solid var(--line);background:#fff;padding:0 16px 0 48px}
.search-wrap svg{position:absolute;left:16px;top:15px;color:#64748b}
.header-actions{display:flex;gap:12px;align-items:center}
.contact-chip,.icon-btn{min-height:54px;padding:0 16px;border-radius:14px;border:1px solid var(--line);background:#fff;display:inline-flex;align-items:center;gap:10px}
.icon-btn{width:54px;justify-content:center;position:relative}
.icon-count{position:absolute;top:7px;right:7px;min-width:18px;height:18px;border-radius:999px;background:var(--blue);color:#fff;font-size:.72rem;display:grid;place-items:center;font-weight:800}
.category-bar{background:#fff;border-bottom:1px solid var(--line)}
.category-bar .inner{display:flex;align-items:center;gap:26px;min-height:56px;overflow:auto;padding:0 2px}
.category-link{font-weight:700;white-space:nowrap;color:#20344d}
.category-link:hover{color:var(--blue)}
.mega{display:none;position:absolute;left:0;right:0;top:100%;background:#fff;border-bottom:1px solid var(--line);box-shadow:var(--shadow);z-index:59}
.mega.active{display:block}
.mega-grid{width:var(--container);margin:0 auto;display:grid;grid-template-columns:1fr 1fr 1fr;gap:30px;padding:26px 0}
.mega h4{margin:0 0 10px;font-size:1rem}.mega ul{list-style:none;margin:0;padding:0;display:grid;gap:10px;color:var(--muted)}
.hero{padding:30px 0}
.hero-grid{display:grid;grid-template-columns:280px 1fr 360px;gap:18px;align-items:start}
.side-menu,.side-offers,.hero-banner,.panel{background:var(--surface);border:1px solid var(--line);border-radius:22px;box-shadow:var(--shadow)}
.side-menu{padding:18px;display:grid;gap:8px}
.side-menu a{padding:14px 14px;border-radius:14px;background:var(--surface-2);font-weight:700;color:#20344d}
.side-menu a:hover{background:#eaf3ff;color:var(--blue)}
.hero-banner{position:relative;min-height:520px;overflow:hidden}
.hero-banner img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.hero-overlay{position:relative;z-index:1;display:flex;flex-direction:column;justify-content:flex-end;min-height:520px;padding:28px;background:linear-gradient(90deg,rgba(15,23,42,.68) 0%,rgba(15,23,42,.24) 55%,rgba(15,23,42,.08) 100%);color:#fff}
.hero-overlay h1{font-size:clamp(3rem,6vw,5rem);line-height:.95;letter-spacing:-.06em;margin:0 0 12px;max-width:560px}
.hero-overlay p{max-width:620px;line-height:1.85;color:rgba(255,255,255,.84);font-size:1.05rem}
.hero-cta{display:flex;gap:12px;flex-wrap:wrap;margin-top:16px}.btn{min-height:52px;padding:0 22px;border-radius:14px;border:none;display:inline-flex;align-items:center;justify-content:center;font-weight:800;cursor:pointer}
.btn-primary{background:var(--blue);color:#fff}.btn-secondary{background:#fff;color:var(--text);border:1px solid rgba(255,255,255,.16)}
.side-offers{padding:14px;display:grid;gap:14px}
.offer-card{position:relative;overflow:hidden;border-radius:18px;min-height:155px;background:#0f172a;color:#fff}
.offer-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}.offer-card::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(15,23,42,.78),rgba(15,23,42,.18))}
.offer-copy{position:relative;z-index:1;padding:18px;max-width:65%}.offer-copy strong{display:block;font-size:1.25rem;margin-bottom:8px}
.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;padding-top:18px}.metric{padding:18px;background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow)}.metric strong{display:block;font-size:1.8rem;margin-bottom:6px}
.section{padding:64px 0}.section-head{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:22px}.section-head h2{margin:0;font-size:2.2rem;letter-spacing:-.04em}
.product-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.product-card{background:#fff;border:1px solid var(--line);border-radius:20px;overflow:hidden;box-shadow:var(--shadow);display:flex;flex-direction:column}
.product-thumb{aspect-ratio:4/3;background:#f8fafc;position:relative;overflow:hidden}.product-thumb img{width:100%;height:100%;object-fit:cover}.tag{position:absolute;left:12px;top:12px;background:rgba(255,255,255,.92);border:1px solid var(--line);min-height:34px;padding:0 12px;border-radius:999px;display:inline-flex;align-items:center;font-size:.82rem;font-weight:800}
.product-body{padding:16px;display:grid;gap:10px;flex:1}.product-category{color:var(--blue);font-size:.86rem;font-weight:800}.product-name{font-size:1.12rem;font-weight:800;line-height:1.45}.product-desc{color:var(--muted);line-height:1.7;font-size:.94rem;min-height:64px}.price-row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}.price{font-size:1.2rem;font-weight:900}.old{color:#8897aa;text-decoration:line-through}.card-actions{display:flex;gap:10px}.card-actions .btn{flex:1;min-height:48px}
.deals-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:18px}.deal{position:relative;min-height:250px;border-radius:22px;overflow:hidden;box-shadow:var(--shadow)}.deal img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}.deal::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(15,23,42,.05),rgba(15,23,42,.72))}.deal-copy{position:absolute;left:18px;right:18px;bottom:18px;z-index:1;color:#fff}.deal-copy strong{display:block;font-size:1.6rem;margin-bottom:8px}.deal-copy span{color:rgba(255,255,255,.86);line-height:1.6}
.shop-page{padding:32px 0 64px}.toolbar{display:grid;grid-template-columns:1fr auto auto;gap:12px;margin-bottom:18px}.toolbar input,.toolbar select{min-height:50px;padding:0 14px;border-radius:14px;border:1px solid var(--line);background:#fff}
.category-chips{display:flex;gap:10px;overflow:auto;margin-bottom:18px}.chip{min-height:40px;padding:0 14px;border-radius:999px;background:#fff;border:1px solid var(--line);display:inline-flex;align-items:center;font-weight:700;cursor:pointer;white-space:nowrap}.chip.active,.chip:hover{background:#eaf3ff;color:var(--blue)}
.product-layout,.two-col,.cart-layout,.checkout-layout{display:grid;grid-template-columns:1.05fr .95fr;gap:22px}.panel{padding:24px}.product-image{padding:0;overflow:hidden}.product-image img{width:100%;height:100%;min-height:560px;object-fit:cover}
.pills{display:flex;gap:10px;flex-wrap:wrap;margin:16px 0}.pill{padding:8px 12px;border-radius:999px;background:#eef4ff;color:#294b79;font-weight:700}
.list{padding-left:18px;color:var(--muted);line-height:1.9}
.cart-item{display:grid;grid-template-columns:110px 1fr auto;gap:16px;padding:16px;background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow)}.cart-item img{width:110px;height:110px;object-fit:cover;border-radius:14px}.qty{display:flex;align-items:center;gap:8px}.qty button{width:34px;height:34px;border-radius:10px;border:1px solid var(--line);background:#fff;cursor:pointer}
.summary .row{display:flex;justify-content:space-between;gap:16px;padding:14px 0;border-bottom:1px solid var(--line)}
.footer{margin-top:56px;border-top:1px solid var(--line);background:#fff}.footer-grid{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:24px;padding:38px 0}.socials{display:flex;gap:10px}.socials a{width:40px;height:40px;border-radius:12px;background:#f4f7fb;border:1px solid var(--line);display:grid;place-items:center}
.notice{padding:14px 16px;background:#f0f9ff;border:1px solid #c4e7ff;border-radius:14px;color:#0c4a6e}.toast{position:fixed;right:18px;bottom:18px;background:#0f172a;color:#fff;padding:14px 16px;border-radius:14px;display:none;z-index:100}
@media (max-width: 1200px){.hero-grid{grid-template-columns:1fr}.metrics,.product-grid,.deals-grid,.footer-grid,.product-layout,.two-col,.cart-layout,.checkout-layout{grid-template-columns:repeat(2,1fr)} .header-main .inner{grid-template-columns:1fr} .search-row{order:3}}
@media (max-width: 760px){.product-grid,.deals-grid,.metrics,.footer-grid,.product-layout,.two-col,.cart-layout,.checkout-layout{grid-template-columns:1fr}.toolbar{grid-template-columns:1fr}.utility .inner,.category-bar .inner{padding:0 8px}.brand-copy strong{font-size:1.25rem}.hero-overlay h1{font-size:2.6rem}.hero-banner,.hero-overlay{min-height:420px}}