/* ============================================================
   良牛知味 Web商城 - 公共样式(与小程序同主题: 红 C62828)
   ============================================================ */
:root {
  --primary: #C62828;
  --primary-dark: #A02020;
  --primary-light: #FDE8E8;
  --bg: #f5f5f5;
  --text: #333;
  --text-sub: #888;
  --border: #eee;
  --green: #2e7d32;
  --orange: #e65100;
  --radius: 8px;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif; background: var(--bg); color: var(--text); font-size: 14px; }
a { text-decoration: none; color: inherit; }
img { display: block; }
ul, ol { list-style: none; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 16px; }

/* ---------- 顶部导航 ---------- */
.navbar { position: sticky; top: 0; z-index: 100; background: #fff; box-shadow: 0 1px 4px rgba(0,0,0,.08); }
.navbar-inner { max-width: 1200px; margin: 0 auto; padding: 0 16px; height: 60px; display: flex; align-items: center; gap: 28px; }
.navbar-logo { display: flex; align-items: center; gap: 8px; font-size: 20px; font-weight: bold; color: var(--primary); white-space: nowrap; }
.navbar-search { flex: 1; max-width: 420px; display: flex; align-items: center; background: var(--bg); border-radius: 20px; padding: 7px 16px; }
.navbar-search input { flex: 1; border: none; outline: none; background: transparent; font-size: 13px; }
.navbar-links { display: flex; align-items: center; gap: 4px; margin-left: auto; }
.navbar-links a { padding: 8px 14px; border-radius: 6px; color: var(--text-sub); font-size: 14px; position: relative; }
.navbar-links a.active { color: var(--primary); font-weight: bold; }
.navbar-links a:hover { background: var(--primary-light); color: var(--primary); }
.cart-badge { position: absolute; top: 0; right: 4px; background: var(--primary); color: #fff; font-size: 10px; min-width: 16px; height: 16px; line-height: 16px; text-align: center; border-radius: 8px; padding: 0 3px; }

/* ---------- 页头 ---------- */
.page-header { display: flex; align-items: center; justify-content: space-between; padding: 20px 0 14px; }
.page-header h2 { font-size: 20px; border-left: 4px solid var(--primary); padding-left: 10px; }

/* ---------- 卡片 ---------- */
.card { background: #fff; border-radius: var(--radius); padding: 16px; margin-bottom: 14px; }
.card-title { font-size: 16px; font-weight: bold; margin-bottom: 12px; display: flex; align-items: center; justify-content: space-between; }
.card-title .more { font-size: 12px; color: var(--text-sub); font-weight: normal; }

/* ---------- 按钮 ---------- */
.btn { display: inline-block; border: none; cursor: pointer; border-radius: var(--radius); font-size: 14px; padding: 9px 20px; text-align: center; transition: opacity .15s; }
.btn:active { opacity: .8; }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:disabled { background: #ccc; cursor: not-allowed; }
.btn-outline { background: #fff; color: var(--primary); border: 1px solid var(--primary); }
.btn-ghost { background: #f0f0f0; color: var(--text); }
.btn-sm { padding: 5px 12px; font-size: 12px; border-radius: 5px; }
.btn-block { display: block; width: 100%; padding: 12px; font-size: 15px; }
.btn-danger-ghost { background: #fff; color: var(--primary); border: 1px solid var(--primary); }

/* ---------- 标签 ---------- */
.tag { display: inline-block; font-size: 11px; padding: 2px 8px; border-radius: 4px; }
.tag-red { background: var(--primary-light); color: var(--primary); }
.tag-green { background: #e8f5e9; color: var(--green); }
.tag-gray { background: #f0f0f0; color: #999; }
.tag-orange { background: #fff3e0; color: var(--orange); }

/* ---------- 表单 ---------- */
.form-item { margin-bottom: 14px; }
.form-item label { display: block; font-size: 13px; color: var(--text-sub); margin-bottom: 6px; }
.form-item input, .form-item select, .form-item textarea {
  width: 100%; padding: 10px 12px; border: 1px solid #ddd; border-radius: 6px; font-size: 14px; outline: none; background: #fff;
}
.form-item input:focus, .form-item select:focus, .form-item textarea:focus { border-color: var(--primary); }
.form-item textarea { resize: vertical; min-height: 70px; }

/* ---------- 空状态 ---------- */
.empty { text-align: center; padding: 60px 0; color: var(--text-sub); }
.empty .icon { font-size: 48px; margin-bottom: 12px; }

/* ---------- 价格 ---------- */
.price { color: var(--primary); font-weight: bold; }
.price-old { color: #bbb; text-decoration: line-through; font-size: 12px; margin-left: 6px; font-weight: normal; }

/* ---------- 列表行 ---------- */
.row-item { display: flex; align-items: center; justify-content: space-between; padding: 12px 0; border-bottom: 1px solid var(--border); }
.row-item:last-child { border-bottom: none; }

/* ---------- 分页 ---------- */
.pagination { display: flex; justify-content: center; gap: 8px; padding: 20px 0; }
.pagination button { padding: 6px 14px; border: 1px solid #ddd; background: #fff; border-radius: 6px; cursor: pointer; }
.pagination button.active { background: var(--primary); color: #fff; border-color: var(--primary); }
.pagination button:disabled { color: #ccc; cursor: not-allowed; }

/* ---------- 弹层 ---------- */
.modal-mask { position: fixed; inset: 0; background: rgba(0,0,0,.5); z-index: 200; display: none; align-items: center; justify-content: center; }
.modal-mask.show { display: flex; }
.modal { background: #fff; border-radius: 12px; padding: 24px; width: 90%; max-width: 420px; max-height: 80vh; overflow-y: auto; }
.modal h3 { margin-bottom: 16px; font-size: 17px; }
.modal-actions { display: flex; gap: 10px; margin-top: 20px; }
.modal-actions .btn { flex: 1; }

/* ---------- Toast ---------- */
#toast { position: fixed; left: 50%; top: 45%; transform: translate(-50%,-50%); background: rgba(0,0,0,.75); color: #fff; padding: 10px 20px; border-radius: 8px; font-size: 14px; z-index: 300; display: none; max-width: 70%; text-align: center; }

/* ---------- 底部 ---------- */
.site-footer { background: #2b2b2b; color: #999; text-align: center; padding: 28px 0; margin-top: 40px; font-size: 12px; line-height: 1.8; }

/* ---------- 工具类 ---------- */
.flex { display: flex; align-items: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.muted { color: var(--text-sub); font-size: 12px; }
.strong { font-weight: bold; }
.mt10 { margin-top: 10px; }
.mt20 { margin-top: 20px; }

/* ---------- 响应式 ---------- */
@media (max-width: 768px) {
  .navbar-inner { gap: 12px; height: 52px; }
  .navbar-links a { padding: 6px 8px; font-size: 13px; }
  .hide-mobile { display: none !important; }
}