/* ===== 全局样式 ===== */
:root {
  --primary: #8B6F5E;
  --primary-light: #A8907A;
  --primary-dark: #6B4F3E;
  --bg: #FAF8F5;
  --bg-card: #FFFFFF;
  --text: #333333;
  --text-light: #888888;
  --border: #E8E0D8;
  --radius: 8px;
  --shadow: 0 2px 12px rgba(0,0,0,0.08);
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

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

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

.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

/* ===== 导航栏 ===== */
.navbar {
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
}
.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.nav-logo {
  font-size: 20px;
  font-weight: 700;
  color: var(--primary-dark);
}
.nav-links { display: flex; gap: 24px; align-items: center; }
.nav-links a {
  color: var(--text);
  font-size: 14px;
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--primary); }
.lang-switch {
  cursor: pointer;
  font-size: 13px;
  color: var(--primary);
  border: 1px solid var(--primary);
  border-radius: 4px;
  padding: 2px 8px;
  background: none;
}

/* ===== Hero ===== */
.hero {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  color: white;
  padding: 80px 0;
  text-align: center;
}
.hero h1 { font-size: 42px; margin-bottom: 16px; }
.hero p { font-size: 18px; opacity: 0.9; margin-bottom: 32px; }
.btn {
  display: inline-block;
  padding: 12px 32px;
  border-radius: var(--radius);
  font-size: 14px;
  cursor: pointer;
  border: none;
  transition: all 0.2s;
}
.btn-primary {
  background: white;
  color: var(--primary-dark);
  font-weight: 600;
}
.btn-primary:hover { background: #f0f0f0; }
.btn-outline {
  background: transparent;
  color: white;
  border: 2px solid white;
}
.btn-outline:hover { background: rgba(255,255,255,0.1); }

/* ===== 商品网格 ===== */
.section { padding: 60px 0; }
.section-title {
  font-size: 24px;
  font-weight: 600;
  margin-bottom: 32px;
  text-align: center;
}
.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 24px;
}
.product-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform 0.2s, box-shadow 0.2s;
  cursor: pointer;
}
.product-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.12);
}
.product-card img {
  width: 100%;
  height: 260px;
  object-fit: cover;
}
.product-card-body { padding: 16px; }
.product-card-name { font-size: 16px; font-weight: 500; margin-bottom: 8px; }
.product-card-price {
  color: var(--primary);
  font-size: 18px;
  font-weight: 600;
}
.product-card-category {
  font-size: 12px;
  color: var(--text-light);
  margin-top: 4px;
}

/* ===== 分类标签 ===== */
.category-tabs {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 32px;
}
.category-tab {
  padding: 8px 20px;
  border-radius: 20px;
  font-size: 14px;
  cursor: pointer;
  border: 1px solid var(--border);
  background: white;
  transition: all 0.2s;
}
.category-tab:hover, .category-tab.active {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}

/* ===== Footer ===== */
.footer {
  background: var(--primary-dark);
  color: rgba(255,255,255,0.8);
  padding: 40px 0;
  margin-top: 80px;
}
.footer a { color: rgba(255,255,255,0.8); }
.footer a:hover { color: white; }
.footer-inner {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 24px;
}
.footer-copy { font-size: 14px; }
.footer-links { display: flex; gap: 16px; }

/* ===== 加载状态 ===== */
.loading {
  text-align: center;
  padding: 40px;
  color: var(--text-light);
}
.empty {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-light);
}

/* ===== 商品详情 ===== */
.product-detail { padding: 40px 0; }
.product-detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}
.product-gallery img {
  width: 100%;
  border-radius: var(--radius);
  margin-bottom: 12px;
}
.product-info h1 { font-size: 28px; margin-bottom: 12px; }
.product-info .price { font-size: 24px; color: var(--primary); font-weight: 600; margin-bottom: 16px; }
.product-info .desc { color: var(--text-light); margin-bottom: 24px; line-height: 1.8; }
.specs-table { width: 100%; border-collapse: collapse; margin-bottom: 24px; }
.specs-table td {
  padding: 8px 12px;
  border-bottom: 1px solid var(--border);
}
.specs-table td:first-child { font-weight: 500; color: var(--text-light); width: 100px; }

/* ===== 管理后台样式 ===== */
.admin-body { background: #f5f5f5; }
.admin-login-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
}
.admin-login-box {
  background: white;
  padding: 40px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  width: 360px;
}
.admin-login-box h1 { text-align: center; margin-bottom: 24px; color: var(--primary-dark); }
.admin-form-group { margin-bottom: 16px; }
.admin-form-group label { display: block; margin-bottom: 6px; font-size: 14px; color: var(--text-light); }
.admin-form-group input, .admin-form-group select, .admin-form-group textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 14px;
}
.admin-form-group textarea { min-height: 80px; resize: vertical; }
.admin-btn {
  width: 100%;
  padding: 12px;
  background: var(--primary);
  color: white;
  border: none;
  border-radius: 6px;
  font-size: 16px;
  cursor: pointer;
}
.admin-btn:hover { background: var(--primary-dark); }
.admin-error { color: #e74c3c; font-size: 13px; margin-top: 8px; text-align: center; }

.admin-nav {
  background: white;
  border-bottom: 1px solid var(--border);
  padding: 0 24px;
  display: flex;
  align-items: center;
  height: 56px;
  gap: 24px;
}
.admin-nav a {
  font-size: 14px;
  color: var(--text-light);
  padding: 16px 0;
  border-bottom: 2px solid transparent;
}
.admin-nav a.active, .admin-nav a:hover {
  color: var(--primary);
  border-bottom-color: var(--primary);
}
.admin-nav-right { margin-left: auto; display: flex; align-items: center; gap: 16px; }
.admin-content { padding: 24px; max-width: 1200px; margin: 0 auto; }
.admin-table {
  width: 100%;
  background: white;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}
.admin-table th {
  background: #f9f9f9;
  padding: 12px 16px;
  text-align: left;
  font-size: 13px;
  color: var(--text-light);
  border-bottom: 1px solid var(--border);
}
.admin-table td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
}
.admin-table tr:last-child td { border-bottom: none; }
.admin-table img { width: 48px; height: 48px; object-fit: cover; border-radius: 4px; }
.admin-actions { display: flex; gap: 8px; }
.admin-actions button {
  padding: 4px 12px;
  border-radius: 4px;
  font-size: 12px;
  cursor: pointer;
  border: 1px solid var(--border);
  background: white;
}
.admin-actions .edit { color: #2980b9; border-color: #2980b9; }
.admin-actions .delete { color: #e74c3c; border-color: #e74c3c; }
.admin-add-btn {
  display: inline-block;
  padding: 10px 20px;
  background: var(--primary);
  color: white;
  border-radius: 6px;
  font-size: 14px;
  margin-bottom: 16px;
}
.admin-add-btn:hover { background: var(--primary-dark); color: white; }

/* 图片上传 */
.image-upload-area {
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  padding: 24px;
  text-align: center;
  cursor: pointer;
  margin-bottom: 12px;
}
.image-upload-area:hover { border-color: var(--primary); }
.image-previews { display: flex; gap: 8px; flex-wrap: wrap; }
.image-preview-item {
  position: relative;
  width: 80px; height: 80px;
}
.image-preview-item img { width: 100%; height: 100%; object-fit: cover; border-radius: 4px; }
.image-preview-item .remove {
  position: absolute; top: -6px; right: -6px;
  background: #e74c3c; color: white;
  border-radius: 50%; width: 18px; height: 18px;
  display: flex; align-items: center; justify-content: center;
  font-size: 12px; cursor: pointer;
}

@media (max-width: 768px) {
  .product-detail-grid { grid-template-columns: 1fr; }
  .hero h1 { font-size: 28px; }
  .nav-links { gap: 12px; }
  .footer-inner { flex-direction: column; }
}