:root{
  --primary:#2563eb;          /* 主色 蓝 */
  --primary-dark:#1d4ed8;
  --accent:#06b6d4;           /* 青 */
  --bg:#f1f5f9;
  --sidebar:#0f172a;          /* 侧边栏深色 */
  --sidebar-hover:#1e293b;
  --sidebar-active:#2563eb;
  --card:#ffffff;
  --text:#0f172a;
  --muted:#64748b;
  --border:#e2e8f0;
  --danger:#ef4444;
  --success:#16a34a;
  --radius:14px;
  --shadow:0 1px 3px rgba(15,23,42,.08),0 6px 18px rgba(15,23,42,.06);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:"Segoe UI",system-ui,-apple-system,"Microsoft YaHei",Roboto,Helvetica,Arial,sans-serif;
  background:var(--bg);color:var(--text);font-size:14px;line-height:1.6;
}
a{color:var(--primary);text-decoration:none}
a:hover{text-decoration:underline}

/* 布局 */
.layout{display:flex;min-height:100vh}
.sidebar{
  width:230px;background:var(--sidebar);color:#cbd5e1;flex-shrink:0;
  position:fixed;top:0;left:0;bottom:0;overflow-y:auto;padding:18px 0;z-index:50;
}
.sidebar .brand{
  color:#fff;font-size:18px;font-weight:700;padding:6px 22px 18px;display:flex;align-items:center;gap:10px;
}
.sidebar .brand .logo{
  width:34px;height:34px;border-radius:9px;background:linear-gradient(135deg,var(--primary),var(--accent));
  display:flex;align-items:center;justify-content:center;font-size:15px;color:#fff;font-weight:800;
}
.sidebar .menu-title{font-size:11px;text-transform:uppercase;letter-spacing:.08em;color:#64748b;padding:14px 22px 6px}
.sidebar a.nav{
  display:flex;align-items:center;gap:10px;padding:11px 22px;color:#cbd5e1;font-size:14px;
}
.sidebar a.nav:hover{background:var(--sidebar-hover);text-decoration:none;color:#fff}
.sidebar a.nav.active{background:var(--sidebar-active);color:#fff;box-shadow:inset 3px 0 0 #fff}
.sidebar a.nav .ico{width:18px;text-align:center;opacity:.9}
.sidebar .spacer{flex:1}
.sidebar .logout{margin-top:14px;border-top:1px solid #1e293b;padding-top:12px}

.main{margin-left:230px;flex:1;display:flex;flex-direction:column;min-width:0}
.topbar{
  height:62px;background:var(--card);border-bottom:1px solid var(--border);
  display:flex;align-items:center;justify-content:space-between;padding:0 22px;position:sticky;top:0;z-index:40;
}
.topbar .page-title{font-size:16px;font-weight:600}
.topbar .rate-box{display:flex;align-items:center;gap:10px}
.topbar .rate-box label{color:var(--muted);font-size:13px}
.topbar .rate-box input{
  width:90px;padding:7px 10px;border:1px solid var(--border);border-radius:9px;font-size:14px;text-align:right;
}
.topbar .rate-box input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(37,99,235,.15)}
.topbar .user{display:flex;align-items:center;gap:8px;color:var(--muted);font-size:13px}

.content{padding:22px;flex:1}
.commission-badge{font-size:12px;color:var(--muted);background:#f8fafc;border:1px solid var(--border);padding:4px 9px;border-radius:8px}

/* 卡片 */
.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow)}
.page-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px;flex-wrap:wrap;gap:10px}
.page-head h1{font-size:19px;margin:0}
.btn{
  display:inline-flex;align-items:center;gap:6px;padding:9px 15px;border-radius:9px;border:1px solid transparent;
  font-size:13px;font-weight:600;cursor:pointer;background:var(--primary);color:#fff;
}
.btn:hover{background:var(--primary-dark);text-decoration:none}
.btn.secondary{background:#fff;color:var(--text);border-color:var(--border)}
.btn.secondary:hover{background:#f8fafc}
.btn.danger{background:var(--danger)}
.btn.danger:hover{background:#dc2626}
.btn.small{padding:6px 11px;font-size:12px}
.btn.ghost{background:transparent;color:var(--primary);border-color:var(--border)}

/* 筛选栏 */
.filterbar{display:flex;gap:12px;flex-wrap:wrap;align-items:flex-end;padding:16px 18px;margin-bottom:16px}
.filterbar .field{display:flex;flex-direction:column;gap:5px}
.filterbar .field label{font-size:12px;color:var(--muted)}
.filterbar select,.filterbar input[type=text]{
  padding:9px 11px;border:1px solid var(--border);border-radius:9px;font-size:14px;min-width:170px;background:#fff;
}
.filterbar select:focus,.filterbar input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(37,99,235,.15)}

/* 产品折叠卡片 */
.product-list{display:flex;flex-direction:column;gap:12px}
.product-card{border:1px solid var(--border);border-radius:var(--radius);background:#fff;box-shadow:var(--shadow);overflow:hidden}
.pc-header{display:flex;align-items:center;gap:14px;padding:14px 18px;cursor:pointer;user-select:none}
.pc-header:hover{background:#f8fafc}
.pc-header .idx{width:30px;height:30px;flex-shrink:0;border-radius:8px;background:#eff6ff;color:var(--primary);
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:13px}
.pc-header .thumb{width:54px;height:54px;border-radius:10px;object-fit:cover;border:1px solid var(--border);background:#f1f5f9}
.pc-header .model{font-weight:700;font-size:15px}
.pc-header .sub{color:var(--muted);font-size:12px}
.pc-header .grow{flex:1;min-width:0}
.pc-header .price{font-weight:700;color:var(--text);font-size:15px}
.pc-header .price small{color:var(--muted);font-weight:400}
.pc-header .chevron{transition:transform .25s;color:var(--muted);font-size:18px}
.product-card.open .chevron{transform:rotate(180deg)}
.pc-detail{max-height:0;overflow:hidden;transition:max-height .35s ease;background:#fcfdfe}
.product-card.open .pc-detail{max-height:2400px}
.pc-detail-inner{padding:6px 18px 20px;border-top:1px solid var(--border)}

.detail-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px;margin:14px 0}
.detail-grid .item .k{font-size:12px;color:var(--muted)}
.detail-grid .item .v{font-size:14px;white-space:pre-wrap;word-break:break-word}
.margin-red{color:var(--danger);font-weight:700}

/* 图片 */
.img-row{display:flex;gap:8px;flex-wrap:wrap;margin:8px 0}
.img-row img{width:78px;height:78px;object-fit:cover;border-radius:10px;border:1px solid var(--border);cursor:pointer;background:#f1f5f9}
.img-row img:hover{opacity:.85}

/* 供应商 */
.supplier-box{margin-top:12px;border:1px dashed var(--border);border-radius:12px;padding:14px;background:#fff}
.supplier-box h4{margin:0 0 10px;font-size:14px}
.supplier-item{display:flex;align-items:center;gap:12px;padding:10px 0;border-top:1px solid var(--border)}
.supplier-item:first-of-type{border-top:none}
.supplier-item .s-name{flex:1;min-width:0}
.supplier-item .s-cost{width:130px}
.supplier-item .s-cost input{width:100%;padding:7px 9px;border:1px solid var(--border);border-radius:8px}
.supplier-item .s-margin{width:120px;text-align:right;font-size:14px}
.supplier-add{display:flex;gap:10px;margin-top:12px;flex-wrap:wrap}
.supplier-add input{padding:8px 10px;border:1px solid var(--border);border-radius:8px;font-size:13px}
.supplier-add input.name{flex:1;min-width:160px}
.supplier-add input.cost{width:130px}

/* 表单 */
.form-wrap{max-width:940px;margin:0 auto}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-grid .full{grid-column:1 / -1}
.field-block{margin-bottom:14px}
.field-block label{display:block;font-size:13px;font-weight:600;margin-bottom:6px}
.field-block .hint{font-size:12px;color:var(--muted);font-weight:400;margin-left:6px}
input[type=text],input[type=number],input[type=password],select,textarea{
  width:100%;padding:10px 12px;border:1px solid var(--border);border-radius:9px;font-size:14px;font-family:inherit;background:#fff;
}
textarea{min-height:84px;resize:vertical}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(37,99,235,.15)}
.err-text{color:var(--danger);font-size:12px;margin-top:4px}

/* 表格 */
table.tbl{width:100%;border-collapse:collapse;background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
table.tbl th,table.tbl td{padding:12px 14px;text-align:left;border-bottom:1px solid var(--border);font-size:13px}
table.tbl th{background:#f8fafc;color:var(--muted);font-weight:600;text-transform:none}
table.tbl tr:hover td{background:#fcfdfe}
table.tbl .idx{width:48px;text-align:center;color:var(--muted)}

/* 分页 */
.pager{display:flex;gap:6px;align-items:center;justify-content:center;margin:18px 0}
.pager a,.pager span{padding:7px 12px;border:1px solid var(--border);border-radius:8px;font-size:13px;background:#fff}
.pager a:hover{background:#f1f5f9;text-decoration:none}
.pager .current{background:var(--primary);color:#fff;border-color:var(--primary)}

/* 登录页 */
.login-wrap{display:flex;align-items:center;justify-content:center;min-height:100vh;background:linear-gradient(135deg,#0f172a,#1e3a8a)}
.login-card{width:380px;background:#fff;border-radius:18px;box-shadow:0 20px 50px rgba(0,0,0,.25);padding:34px 30px}
.login-card .brand{display:flex;align-items:center;gap:10px;margin-bottom:22px}
.login-card .brand .logo{width:40px;height:40px;border-radius:10px;background:linear-gradient(135deg,var(--primary),var(--accent));
  display:flex;align-items:center;justify-content:center;font-weight:800;color:#fff}
.login-card h2{margin:0 0 6px;font-size:20px}
.login-card .sub{color:var(--muted);font-size:13px;margin-bottom:20px}
.login-card .field-block label{font-size:13px}

/* 图片放大 */
.lightbox{position:fixed;inset:0;background:rgba(15,23,42,.85);display:none;align-items:center;justify-content:center;z-index:999}
.lightbox.show{display:flex}
.lightbox img{max-width:90%;max-height:90%;border-radius:10px;box-shadow:0 10px 40px rgba(0,0,0,.5)}
.lightbox .close{position:absolute;top:20px;right:26px;color:#fff;font-size:32px;cursor:pointer}

/* Toast */
#toast{position:fixed;top:18px;left:50%;transform:translateX(-50%);z-index:1000;display:flex;flex-direction:column;gap:8px}
.toast{padding:11px 18px;border-radius:10px;color:#fff;font-size:13px;box-shadow:0 8px 24px rgba(0,0,0,.2);animation:fade .25s}
.toast.success{background:var(--success)}
.toast.error{background:var(--danger)}
.toast.info{background:var(--primary)}
@keyframes fade{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:none}}

/* 通用工具 */
.muted{color:var(--muted)}
.right{text-align:right}
.mt10{margin-top:10px}.mt16{margin-top:16px}
.flex{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.tag{display:inline-block;padding:2px 9px;border-radius:999px;background:#eff6ff;color:var(--primary);font-size:12px}

/* 响应式 */
@media (max-width:768px){
  .sidebar{transform:translateX(-100%);transition:transform .25s}
  .sidebar.open{transform:none}
  .main{margin-left:0}
  .form-grid{grid-template-columns:1fr}
  .topbar .rate-box input{width:74px}
  .menu-toggle{display:inline-flex}
}
.menu-toggle{display:none;background:none;border:none;font-size:20px;color:var(--text);cursor:pointer}

/* ===== 新增：产品库 v2 样式（LOGO / 参数 / 规格表 / 编辑表单 / 多图） ===== */

/* LOGO（侧边栏 / 登录页） */
.sidebar .brand{justify-content:center;padding:16px 16px 20px}
.sidebar .brand-logo{max-width:120px;width:100%;height:auto;display:block}
.login-card .brand{justify-content:center}
.login-logo{max-width:160px;width:100%;height:auto;display:block;margin-bottom:18px}

/* 参数：中文在前，英文紧跟其后 */
.param-line{display:flex;gap:10px;padding:8px 0;border-bottom:1px solid var(--border);font-size:14px;line-height:1.7}
.param-line:last-of-type{border-bottom:none}
.param-line .k{color:var(--muted);font-size:12px;width:52px;flex-shrink:0;font-weight:600;padding-top:2px}
.param-line .v{flex:1;min-width:0;white-space:pre-wrap;word-break:break-word}
.param-en{color:var(--muted);font-size:12px;margin-left:8px}

/* 规格表 */
.tbl-spec{font-size:13px}
.tbl-spec th,.tbl-spec td{padding:10px 12px}
.tbl-spec .num{text-align:right;font-variant-numeric:tabular-nums;white-space:nowrap}
.tbl-spec .spec-name{font-weight:600;white-space:nowrap}
.tbl-spec .size{color:var(--muted);white-space:nowrap;font-variant-numeric:tabular-nums}
.tbl-spec .sup-name{white-space:nowrap}
.tbl-spec .spec-cont{border-left:2px solid var(--border)}
.tbl-spec .act{white-space:nowrap;text-align:right}
.tbl-spec .act .btn{margin-left:4px}
.tbl-spec tr.spec-extra td{background:#fcfdfe}
.tbl-spec .tag-alt{display:inline-block;margin-left:6px;padding:1px 7px;border-radius:999px;background:#fff7ed;color:#c2410c;font-size:11px;font-weight:600;vertical-align:middle}

/* 表格内小按钮（供应商折叠开关） */
.tiny-btn{padding:2px 9px;font-size:11px;border-radius:7px;border:1px solid var(--border);background:#fff;color:var(--muted);cursor:pointer;font-weight:600;line-height:1.6}
.tiny-btn:hover{background:#f1f5f9;color:var(--text)}
.btn-toggle-sup{margin-left:6px}

/* 添加供应商表单行（默认由 hidden 属性隐藏） */
.sup-form-row td{background:#f8fafc}
.sup-form-row .supplier-add{margin-top:0}

/* 提示 / 空态 */
.err-banner{background:#fef2f2;border:1px solid #fecaca;color:#b91c1c;padding:10px 14px;border-radius:10px;margin-bottom:14px;font-size:13px}
.empty-box{padding:30px;text-align:center;color:var(--muted)}

/* 编辑表单：区块 */
.sec{margin-bottom:18px;padding:20px 22px}
.sec-title{font-size:15px;font-weight:700;margin:0 0 14px;padding-bottom:10px;border-bottom:1px solid var(--border)}
.variant-block{border:1px solid var(--border);border-radius:12px;padding:16px;margin-bottom:14px;background:#fff}
.vb-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}
.vb-no{font-size:13px;color:var(--muted);font-weight:600}
.vb-no .vb-index{color:var(--primary);font-size:14px}
.vb-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.vb-grid .span3{grid-column:1 / -1}
.size-inputs{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.size-inputs input{width:84px}
.size-inputs .x{color:var(--muted)}

/* 供应商编辑列表（编辑页） */
.sup-list{margin-top:14px;border-top:1px dashed var(--border);padding-top:12px}
.sup-list-title{font-size:12px;color:var(--muted);font-weight:600;margin-bottom:8px}
.sup-edit-row{display:flex;gap:10px;align-items:center;margin-bottom:8px}
.sup-edit-row input[type=text]{flex:1;min-width:160px}
.sup-edit-row input[type=number]{width:140px}
.btn-add-sup{margin-top:2px}

/* 图片编辑行（多图，各自增删 / 替换） */
.img-edit-row{display:flex;align-items:center;gap:10px;margin-bottom:10px}
.img-edit-row input[type=text]{flex:1;min-width:200px}
.img-edit-row input[type=file]{flex:0 0 auto}
.img-preview{width:64px;height:64px;border-radius:10px;border:1px solid var(--border);overflow:hidden;background:#f1f5f9;flex-shrink:0;display:flex;align-items:center;justify-content:center}
.img-preview img{width:100%;height:100%;object-fit:cover;display:block}
.thumb-empty{color:var(--muted);font-size:11px}
.btn-img-del{flex-shrink:0}