:root{
  --primary:#2563eb; --primary-dark:#1d4ed8; --bg:#f5f7fa; --card:#fff;
  --text:#1f2937; --muted:#6b7280; --border:#e5e7eb; --ok:#16a34a; --warn:#d97706;
}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.6}
a{color:var(--primary);text-decoration:none}
.wrap{max-width:1080px;margin:0 auto;padding:0 16px}

/* 顶部 */
.topbar{background:var(--card);border-bottom:1px solid var(--border)}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;height:60px}
.brand{font-size:20px;font-weight:700;color:var(--text)}
.brand span{color:var(--primary)}
.nav a{margin-left:20px;color:var(--muted);font-size:14px}
.nav a:hover{color:var(--primary)}

.notice{background:#fffbeb;border:1px solid #fde68a;color:#92400e;padding:10px 14px;border-radius:8px;margin:16px 0;font-size:14px}

/* 商品卡片 */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:16px;padding:20px 0 40px}
.pcard{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:20px;transition:box-shadow .2s;display:flex;flex-direction:column}
.pcard:hover{box-shadow:0 6px 18px rgba(0,0,0,.07)}
.pcard h3{font-size:17px;margin-bottom:6px}
.tag{display:inline-block;font-size:12px;padding:2px 8px;border-radius:4px;margin-bottom:10px}
.tag.auto{background:#e0f2fe;color:#0369a1}
.tag.manual{background:#f3e8ff;color:#7e22ce}
.pdesc{color:var(--muted);font-size:13px;flex:1;margin-bottom:14px;white-space:pre-wrap;word-break:break-word}
.pmeta{display:flex;justify-content:space-between;align-items:center;font-size:13px;color:var(--muted);margin-bottom:12px}
.price{font-size:22px;font-weight:700;color:var(--warn)}
.price small{font-size:13px;color:var(--muted);font-weight:400}
.btn{display:inline-block;background:var(--primary);color:#fff;border:none;border-radius:8px;padding:10px 0;text-align:center;font-size:14px;cursor:pointer;width:100%}
.btn:hover{background:var(--primary-dark)}
.btn.ghost{background:#eef2ff;color:var(--primary)}
.btn.disabled{background:#d1d5db;cursor:not-allowed}
.out{color:#dc2626;font-size:13px;margin-top:8px}

/* 表单 */
.form-card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:24px;max-width:560px;margin:20px auto 40px}
.form-card h2{font-size:20px;margin-bottom:4px}
.form-card .sub{color:var(--muted);font-size:13px;margin-bottom:20px}
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;color:#555;margin-bottom:6px}
.field input,.field textarea,.field select{width:100%;padding:10px 12px;border:1px solid var(--border);border-radius:8px;font-size:14px;outline:none}
.field input:focus,.field textarea:focus{border-color:var(--primary)}
.qty{display:flex;align-items:center;gap:10px}
.qty button{width:36px;height:36px;border:1px solid var(--border);background:#fff;border-radius:8px;font-size:18px;cursor:pointer}
.qty input{width:70px;text-align:center}
.amount{background:#eef2ff;padding:14px;border-radius:8px;margin-bottom:16px;display:flex;justify-content:space-between;align-items:center}
.amount .num{font-size:24px;font-weight:700;color:var(--primary)}

/* 结果 / 订单查询 */
.result{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:24px;max-width:640px;margin:20px auto 40px}
.result .ok{color:var(--ok);font-size:16px;font-weight:600;margin-bottom:8px}
.order-box{border:1px solid var(--border);border-radius:8px;padding:14px;margin-top:12px;background:#fafafa}
.cardline{background:#0f172a;color:#e2e8f0;padding:6px 10px;border-radius:4px;margin:6px 0;font-family:monospace;word-break:break-all;font-size:13px}
table{width:100%;border-collapse:collapse;font-size:14px}
td,th{padding:8px 10px;border-bottom:1px solid var(--border);text-align:left;vertical-align:top}
th{color:var(--muted);font-weight:500;width:110px}
.footer{text-align:center;color:var(--muted);font-size:13px;padding:30px 0 40px}
.badge{display:inline-block;padding:2px 8px;border-radius:4px;font-size:12px}
.badge.green{background:#f0f9eb;color:#16a34a}
.badge.orange{background:#fdf6ec;color:#d97706}
.badge.gray{background:#f3f4f6;color:#6b7280}
.lbl{color:var(--muted);font-size:13px}
.copy-btn{font-size:12px;padding:3px 10px;border:1px solid var(--border);background:#fff;border-radius:6px;cursor:pointer;color:var(--muted)}
.copy-btn:hover{color:var(--primary);border-color:var(--primary)}

/* 多规格选择卡片 */
.spec-card{display:flex;align-items:center;gap:6px;border:1px solid var(--border);border-radius:10px;padding:10px 14px;cursor:pointer;font-size:14px;user-select:none;background:#fff}
.spec-card input{accent-color:var(--primary)}
.spec-card:has(input:checked){border-color:var(--primary);background:#eef2ff;font-weight:600}
.spec-card:hover{border-color:var(--primary)}

/* 首页轮播 Banner */
.banner{position:relative;overflow:hidden;border-radius:16px;margin:14px 0;background:#fff;box-shadow:var(--shadow,0 1px 3px rgba(0,0,0,.08))}
.banner-track{display:flex;transition:transform .5s ease}
.banner-slide{flex:0 0 100%;min-width:100%}
.banner-slide img{width:100%;display:block;height:auto;max-height:320px;object-fit:cover}
.banner-arrow{position:absolute;top:50%;transform:translateY(-50%);z-index:2;background:rgba(0,0,0,.35);color:#fff;border:none;width:34px;height:34px;border-radius:50%;font-size:20px;line-height:1;cursor:pointer}
.banner-arrow.left{left:10px}.banner-arrow.right{right:10px}
.banner-arrow:hover{background:rgba(0,0,0,.55)}
.banner-dots{position:absolute;bottom:10px;left:0;right:0;display:flex;justify-content:center;gap:6px}
.banner-dots .dot{width:8px;height:8px;border-radius:50%;background:rgba(255,255,255,.55);cursor:pointer}
.banner-dots .dot.on{background:#fff}

/* 首页自定义板块 */
.home-section{background:var(--card,#fff);border:1px solid var(--border);border-radius:12px;padding:16px 18px;margin-bottom:14px}
.home-section h3{margin:0 0 6px;font-size:16px;color:var(--primary)}