/* ===== COMMON BASE STYLES ===== */
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:'Apple SD Gothic Neo','Malgun Gothic',sans-serif;color:#1a1a1a;background:#fff;font-size:15px;line-height:1.6}
a{text-decoration:none;color:inherit}
button{cursor:pointer;border:none;background:none;font-family:inherit}
img{max-width:100%;height:auto}

/* ===== TOP HEADER ===== */
.top-header{background:#1a1a1a;color:#fff;padding:14px 20px;display:flex;justify-content:space-between;align-items:center;position:sticky;top:0;z-index:100}
.top-header .brand{font-size:16px;font-weight:700}
.top-header .brand span{color:#ccc;font-weight:400;font-size:13px;margin-left:6px}
.top-header .phone{background:#c0392b;color:#fff;padding:8px 14px;border-radius:4px;font-size:14px;font-weight:700;white-space:nowrap}

/* ===== TAB NAV ===== */
.tab-nav{background:#fff;border-bottom:2px solid #e0e0e0;display:flex;overflow-x:auto;-webkit-overflow-scrolling:touch}
.tab-nav a{padding:13px 18px;color:#666;font-size:13px;white-space:nowrap;transition:color .2s}
.tab-nav a.active{color:#1a1a1a;border-bottom:2px solid #1a1a1a;font-weight:600}
.tab-nav a:hover{color:#c0392b}

/* ===== HERO ===== */
.hero{background:linear-gradient(135deg,#1a1a1a 0%,#2d2d2d 60%,#3d2020 100%);color:#fff;padding:32px 20px;text-align:center}
.hero h1{font-size:21px;font-weight:800;line-height:1.35;margin-bottom:10px}
.hero h1 em{color:#e57373;font-style:normal}
.hero .hero-sub{font-size:13px;color:#bbb;margin-bottom:18px}
.hero .badges{display:flex;justify-content:center;flex-wrap:wrap;gap:7px;margin-bottom:18px}
.hero .badge{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);color:#fff;padding:4px 11px;border-radius:20px;font-size:12px}
.hero .cta-btn{display:inline-block;background:#c0392b;color:#fff;padding:13px 32px;border-radius:4px;font-size:16px;font-weight:700;transition:background .2s}
.hero .cta-btn:hover{background:#a93226}

/* ===== INFO BAR ===== */
.info-bar{background:#f5f5f5;border-bottom:1px solid #e0e0e0;padding:13px 20px}
.info-bar .info-title{font-size:13px;font-weight:700;margin-bottom:6px}
.info-bar .info-row{display:flex;flex-wrap:wrap;gap:8px 18px}
.info-bar .info-item{font-size:12px;color:#666}

/* ===== SECTION ===== */
.section{padding:22px 16px}
.section-title{font-size:17px;font-weight:800;margin-bottom:3px}
.section-sub{font-size:13px;color:#666;margin-bottom:16px}

/* ===== PRODUCT GRID ===== */
.product-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.product-card{background:#fff;border:1px solid #e0e0e0;border-radius:8px;overflow:hidden;display:flex;flex-direction:column;transition:box-shadow .2s}
.product-card:hover{box-shadow:0 4px 16px rgba(0,0,0,.12)}
.product-img-wrap{position:relative;background:#f9f9f9;width:100%}
.product-img-wrap img{width:100%;height:auto;display:block}
.badge-area{position:absolute;top:7px;right:7px;display:flex;flex-direction:column;gap:3px}
.tag{padding:3px 6px;border-radius:3px;font-size:10px;font-weight:700;color:#fff}
.tag.hit{background:#2ecc71}
.tag.rec{background:#3498db}
.tag.new{background:#e67e22}
.tag.pop{background:#e91e63}
.tag.sale{background:#1565C0}
.product-body{padding:10px;flex:1;display:flex;flex-direction:column}
.product-code{font-size:10px;color:#666}
.product-name{font-size:13px;font-weight:700;margin-bottom:5px}
.product-desc-tag{font-size:10px;color:#666;background:#f0f0f0;display:inline-block;padding:2px 7px;border-radius:10px;margin-bottom:7px}
.product-price{font-size:17px;font-weight:800;color:#c0392b;margin-bottom:9px}
.product-price span{font-size:13px;font-weight:400;color:#666}
.order-btn{display:block;background:#1a1a1a;color:#fff;text-align:center;padding:9px 0;border-radius:4px;font-size:13px;font-weight:700;transition:background .2s}
.order-btn:hover{background:#c0392b}

/* ===== FAQ ===== */
.faq-section{background:#f5f5f5;padding:26px 16px}
.faq-item{background:#fff;border:1px solid #e0e0e0;border-radius:8px;margin-bottom:9px;overflow:hidden}
.faq-q{padding:14px 16px;font-size:14px;font-weight:700;cursor:pointer;display:flex;justify-content:space-between;align-items:center}
.faq-q::before{content:'Q';color:#c0392b;margin-right:8px;font-weight:900;flex-shrink:0}
.faq-a{display:none;padding:12px 16px;font-size:13px;color:#2d2d2d;line-height:1.7;border-top:1px solid #e0e0e0}
.faq-item.open .faq-a{display:block}
.faq-item.open .faq-q .arrow{transform:rotate(180deg)}
.arrow{transition:transform .2s;display:inline-block;flex-shrink:0}

/* ===== DELIVERY ===== */
.delivery-section{padding:22px 16px}
.delivery-grid{display:grid;grid-template-columns:1fr 1fr;gap:9px}
.delivery-item{background:#f5f5f5;border-radius:8px;padding:15px 13px;text-align:center}
.delivery-icon{font-size:24px;margin-bottom:8px}

/* ===== BOTTOM CTA ===== */
.bottom-cta{background:#1a1a1a;color:#fff;padding:26px 20px;text-align:center}
.bottom-cta .phone-num{font-size:27px;font-weight:900;color:#fff;display:block;margin-bottom:14px}
.bottom-cta .call-btn{display:inline-block;background:#c0392b;color:#fff;padding:13px 36px;border-radius:4px;font-size:15px;font-weight:700;transition:background .2s}
.bottom-cta .call-btn:hover{background:#a93226}

/* ===== FOOTER ===== */
footer{background:#111;color:#888;padding:18px 20px;font-size:11px;text-align:center}
footer p{margin-bottom:3px}

/* ===== RESPONSIVE ===== */
@media(min-width:640px){
  .product-grid{grid-template-columns:repeat(4,1fr)}
  .delivery-grid{grid-template-columns:repeat(4,1fr)}
  .hero h1{font-size:26px}
}
@media(min-width:960px){
  .top-header{padding:14px 40px}
  .section{padding:32px 40px}
  .faq-section{padding:32px 40px}
  .delivery-section{padding:32px 40px}
  .info-bar{padding:16px 40px}
  .bottom-cta{padding:36px 40px}
}