/* ===== Yiwu Blanket Wholesale - Main Stylesheet ===== */
:root {
  --primary: #c0392b;
  --primary-dark: #a93226;
  --primary-light: #e74c3c;
  --accent: #f39c12;
  --bg: #faf8f5;
  --bg-white: #ffffff;
  --text: #2c3e50;
  --text-light: #7f8c8d;
  --text-muted: #bdc3c7;
  --border: #e8e4df;
  --shadow: 0 2px 12px rgba(0,0,0,0.08);
  --radius: 8px;
  --radius-sm: 4px;
  --font: 'Segoe UI', -apple-system, BlinkMacSystemFont, 'Helvetica Neue', Arial, sans-serif;
  --max-width: 1280px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
}

a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary-dark); }

img { max-width: 100%; height: auto; display: block; }

.container { max-width: var(--max-width); margin: 0 auto; padding: 0 20px; }

/* ===== Header ===== */
.site-header {
  background: var(--bg-white);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 1px 4px rgba(0,0,0,0.05);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 12px 20px;
  gap: 20px;
}

.logo a {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--primary);
  white-space: nowrap;
}

.logo span { color: var(--text); font-weight: 400; font-size: 0.85rem; display: block; }

.nav-links { display: flex; gap: 24px; align-items: center; }

.nav-links a {
  color: var(--text);
  font-size: 0.95rem;
  font-weight: 500;
  transition: color 0.2s;
}

.nav-links a:hover, .nav-links a.active { color: var(--primary); }

.header-actions { display: flex; align-items: center; gap: 16px; }

.search-box {
  display: flex;
  border: 1px solid var(--border);
  border-radius: 20px;
  overflow: hidden;
  background: var(--bg);
}

.search-box input {
  border: none;
  background: transparent;
  padding: 8px 14px;
  font-size: 0.9rem;
  width: 180px;
  outline: none;
}

.search-box button {
  background: var(--primary);
  color: #fff;
  border: none;
  padding: 8px 16px;
  cursor: pointer;
  font-size: 0.9rem;
}

.cart-icon {
  position: relative;
  font-size: 1.3rem;
  color: var(--text);
  cursor: pointer;
}

.cart-count {
  position: absolute;
  top: -8px;
  right: -10px;
  background: var(--primary);
  color: #fff;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  font-size: 0.7rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
}

/* ===== Banner ===== */
.banner {
  background: linear-gradient(135deg, #c0392b 0%, #e74c3c 50%, #f39c12 100%);
  color: #fff;
  padding: 70px 20px;
  text-align: center;
}

.banner h1 { font-size: 2.5rem; margin-bottom: 12px; font-weight: 700; }
.banner p { font-size: 1.15rem; opacity: 0.9; max-width: 600px; margin: 0 auto 24px; }

.banner .btn { display: inline-block; margin: 0 8px; }

/* ===== Buttons ===== */
.btn {
  display: inline-block;
  padding: 12px 28px;
  border-radius: var(--radius);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all 0.2s;
  text-align: center;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
}

.btn-primary:hover {
  background: var(--primary-dark);
  color: #fff;
}

.btn-outline {
  background: transparent;
  border: 2px solid #fff;
  color: #fff;
}

.btn-outline:hover { background: rgba(255,255,255,0.15); color: #fff; }

.btn-secondary {
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
}

.btn-secondary:hover { background: var(--border); }

.btn-sm { padding: 6px 14px; font-size: 0.8rem; }

/* ===== Section Titles ===== */
.section-title {
  text-align: center;
  padding: 48px 0 32px;
}

.section-title h2 {
  font-size: 2rem;
  color: var(--text);
  margin-bottom: 8px;
}

.section-title p {
  color: var(--text-light);
  font-size: 1rem;
}

/* ===== Category Cards ===== */
.categories { background: var(--bg-white); padding: 40px 0 60px; }

.cat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

.cat-card {
  background: var(--bg);
  border-radius: var(--radius);
  overflow: hidden;
  text-align: center;
  transition: transform 0.2s, box-shadow 0.2s;
  cursor: pointer;
  border: 1px solid var(--border);
}

.cat-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.cat-card img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.cat-card h3 {
  padding: 16px 12px 6px;
  font-size: 1.1rem;
}

.cat-card p {
  padding: 0 12px 16px;
  color: var(--text-light);
  font-size: 0.9rem;
}

/* ===== Product Grid ===== */
.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 24px;
  padding: 20px 0 40px;
}

.product-card {
  background: var(--bg-white);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  transition: transform 0.2s, box-shadow 0.2s;
}

.product-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.product-card .img-wrap {
  position: relative;
  width: 100%;
  padding-top: 100%;
  overflow: hidden;
  background: #f0ece8;
}

.product-card .img-wrap img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s;
}

.product-card:hover .img-wrap img { transform: scale(1.05); }

.product-card .info {
  padding: 16px;
}

.product-card .info .size-tag {
  display: inline-block;
  background: var(--bg);
  color: var(--text-light);
  padding: 3px 10px;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  margin-bottom: 8px;
}

.product-card .info .weight-tag {
  display: inline-block;
  color: var(--text-light);
  font-size: 0.8rem;
  margin-left: 6px;
}

.product-card .info h3 {
  font-size: 0.95rem;
  margin-bottom: 8px;
  font-weight: 600;
  color: var(--text);
}

.product-card .info .price {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}

.product-card .info .price-cny {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--primary);
}

.product-card .info .price-usd {
  font-size: 0.85rem;
  color: var(--text-light);
}

.product-card .info .consult {
  color: var(--accent);
  font-weight: 600;
  font-size: 0.9rem;
}

.product-card .add-cart {
  display: block;
  width: 100%;
  margin-top: 12px;
  padding: 10px;
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  cursor: pointer;
  transition: background 0.2s;
}

.product-card .add-cart:hover { background: var(--primary-dark); }

/* ===== Product Detail ===== */
.product-detail {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  max-width: var(--max-width);
  margin: 40px auto;
  padding: 0 20px;
}

.product-detail .gallery { }
.product-detail .gallery img {
  width: 100%;
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

.product-detail .detail-info h1 {
  font-size: 1.6rem;
  margin-bottom: 16px;
}

.product-detail .detail-info .meta {
  display: flex;
  gap: 16px;
  margin-bottom: 20px;
}

.product-detail .detail-info .meta span {
  background: var(--bg);
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
}

.product-detail .detail-info .price-section {
  padding: 20px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  margin-bottom: 20px;
}

.product-detail .detail-info .price-cny {
  font-size: 2rem;
  font-weight: 700;
  color: var(--primary);
}

.product-detail .detail-info .price-usd {
  font-size: 1.1rem;
  color: var(--text-light);
  margin-left: 12px;
}

.product-detail .detail-info .qty-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}

.product-detail .detail-info .qty-wrap input {
  width: 60px;
  padding: 8px;
  text-align: center;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 1rem;
}

.product-detail .detail-info .add-cart-btn {
  padding: 14px 40px;
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: var(--radius);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
}

.product-detail .detail-info .add-cart-btn:hover { background: var(--primary-dark); }

/* ===== Cart Page ===== */
.cart-page { max-width: var(--max-width); margin: 40px auto; padding: 0 20px; }

.cart-page h1 { font-size: 1.8rem; margin-bottom: 24px; }

.cart-table { width: 100%; border-collapse: collapse; background: var(--bg-white); border-radius: var(--radius); overflow: hidden; }

.cart-table th, .cart-table td {
  padding: 16px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

.cart-table th { background: var(--bg); font-weight: 600; font-size: 0.9rem; }

.cart-table .item-img { width: 60px; height: 60px; border-radius: var(--radius-sm); object-fit: cover; }

.cart-table .qty-input {
  width: 50px;
  padding: 6px;
  text-align: center;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}

.cart-table .remove-btn {
  background: none;
  border: none;
  color: var(--primary);
  cursor: pointer;
  font-size: 0.9rem;
}

.cart-summary {
  background: var(--bg-white);
  padding: 24px;
  border-radius: var(--radius);
  margin-top: 24px;
  text-align: right;
}

.cart-summary .total-row {
  display: flex;
  justify-content: flex-end;
  gap: 32px;
  margin-bottom: 16px;
  font-size: 1.1rem;
}

.cart-summary .total-cny { font-weight: 700; color: var(--primary); font-size: 1.3rem; }
.cart-summary .total-usd { color: var(--text-light); }

.cart-empty { text-align: center; padding: 80px 20px; color: var(--text-light); }
.cart-empty p { font-size: 1.2rem; margin-bottom: 16px; }

/* ===== Checkout ===== */
.checkout-page { max-width: 800px; margin: 40px auto; padding: 0 20px; }

.checkout-page h1 { font-size: 1.8rem; margin-bottom: 24px; }

.form-section {
  background: var(--bg-white);
  padding: 24px;
  border-radius: var(--radius);
  margin-bottom: 24px;
  border: 1px solid var(--border);
}

.form-section h2 { font-size: 1.2rem; margin-bottom: 16px; }

.form-group { margin-bottom: 16px; }

.form-group label {
  display: block;
  margin-bottom: 6px;
  font-weight: 600;
  font-size: 0.9rem;
}

.form-group input, .form-group textarea, .form-group select {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-family: inherit;
}

.form-group textarea { resize: vertical; min-height: 80px; }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

/* ===== Admin ===== */
.admin-page { max-width: var(--max-width); margin: 40px auto; padding: 0 20px; }

.admin-page h1 { font-size: 1.8rem; margin-bottom: 6px; }
.admin-page .subtitle { color: var(--text-light); margin-bottom: 24px; }

.admin-toolbar { display: flex; gap: 12px; margin-bottom: 20px; align-items: center; }

.admin-toolbar input {
  padding: 8px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  flex: 1;
  max-width: 300px;
}

.admin-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--bg-white);
  border-radius: var(--radius);
  overflow: hidden;
  font-size: 0.9rem;
}

.admin-table th, .admin-table td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  text-align: left;
}

.admin-table th { background: var(--bg); font-weight: 600; }

.admin-table .editable { cursor: pointer; }

.admin-table .editable:hover { background: #fef9e7; }

.admin-table input[type="number"], .admin-table input[type="text"] {
  width: 70px;
  padding: 4px 6px;
  border: 1px solid var(--primary);
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
}

.admin-table .img-thumb { width: 40px; height: 40px; border-radius: var(--radius-sm); object-fit: cover; }

.admin-table .actions button {
  padding: 4px 10px;
  margin: 0 2px;
  font-size: 0.8rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  border: 1px solid var(--border);
}

.admin-table .actions .save-btn { background: #27ae60; color: #fff; border-color: #27ae60; }
.admin-table .actions .delete-btn { background: var(--primary); color: #fff; border-color: var(--primary); }

/* ===== Filter Bar ===== */
.filter-bar {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  padding: 16px 0;
  align-items: center;
}

.filter-bar .filter-btn {
  padding: 8px 18px;
  border: 1px solid var(--border);
  border-radius: 20px;
  background: var(--bg-white);
  cursor: pointer;
  font-size: 0.9rem;
  transition: all 0.2s;
}

.filter-bar .filter-btn.active, .filter-bar .filter-btn:hover {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

/* ===== Footer ===== */
.site-footer {
  background: #2c3e50;
  color: #bdc3c7;
  padding: 40px 20px 20px;
  margin-top: 60px;
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 32px;
}

.footer-col h4 {
  color: #fff;
  margin-bottom: 12px;
  font-size: 1rem;
}

.footer-col a { color: #bdc3c7; font-size: 0.9rem; display: block; margin-bottom: 8px; }
.footer-col a:hover { color: #fff; }

.footer-bottom {
  text-align: center;
  padding-top: 24px;
  margin-top: 24px;
  border-top: 1px solid #34495e;
  font-size: 0.85rem;
}

/* ===== Toast ===== */
.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  background: #2c3e50;
  color: #fff;
  padding: 12px 28px;
  border-radius: 24px;
  font-size: 0.9rem;
  z-index: 999;
  opacity: 0;
  transition: opacity 0.3s;
}

.toast.show { opacity: 1; }

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .header-inner { flex-wrap: wrap; }
  .nav-links { order: 3; width: 100%; justify-content: center; gap: 16px; flex-wrap: wrap; margin-top: 4px; }
  .nav-links a { font-size: 0.85rem; }
  .search-box input { width: 120px; }
  .banner { padding: 40px 20px; }
  .banner h1 { font-size: 1.6rem; }
  .product-detail { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .cart-table { font-size: 0.8rem; }
  .cart-table th, .cart-table td { padding: 8px; }
  .product-grid { grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 12px; }
}

@media (max-width: 480px) {
  .product-grid { grid-template-columns: 1fr 1fr; gap: 10px; }
  .product-card .info { padding: 10px; }
  .product-card .info h3 { font-size: 0.8rem; }
}