/* ============================================================
   进货库存系统 · 全局样式
   风格基准：方案A 经典商务蓝白（美化定稿版）
   ============================================================ */
:root{
  /* 品牌蓝 */
  --primary:#2563eb; --primary-dark:#1d4ed8; --primary-soft:#eff6ff; --primary-ring:rgba(37,99,235,.16);
  /* 侧边栏（深蓝渐变） */
  --sidebar:linear-gradient(180deg,#101d3a 0%,#16294d 55%,#1a3158 100%);
  --sidebar-hover:rgba(255,255,255,.07); --sidebar-active:linear-gradient(90deg,rgba(37,99,235,.32),rgba(37,99,235,.12));
  /* 中性色 */
  --bg:#f2f5fa; --card:#fff; --border:#e4e9f2; --border-strong:#d4dcea;
  --text:#16233f; --text-sub:#5f6f8a; --text-faint:#8b98ad;
  /* 语义色 */
  --green:#15803d; --green-bg:#f0fdf4; --red:#dc2626; --red-bg:#fef2f2; --amber:#b45309; --amber-bg:#fffbeb;
  /* 圆角 */
  --r-sm:8px; --r-md:12px; --r-lg:14px;
  /* 阴影 */
  --sh-sm:0 1px 2px rgba(16,29,61,.05);
  --sh-md:0 1px 2px rgba(16,29,61,.05),0 4px 12px -2px rgba(16,29,61,.07);
  --sh-lg:0 2px 4px rgba(16,29,61,.05),0 14px 32px -8px rgba(16,29,61,.16);
}
*{margin:0;padding:0;box-sizing:border-box}
::selection{background:rgba(37,99,235,.18)}
body{
  font-family:-apple-system,"HarmonyOS Sans SC","MiSans","PingFang SC","Microsoft YaHei",sans-serif;
  background:var(--bg);color:var(--text);font-size:14px;
  background-image:linear-gradient(180deg,#e9eef7 0%,rgba(233,238,247,0) 320px);
  background-repeat:no-repeat;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--primary);text-decoration:none}
.layout{display:flex;min-height:100vh}

/* ===== 滚动条 ===== */
::-webkit-scrollbar{width:8px;height:8px}
::-webkit-scrollbar-thumb{background:#c6cfdc;border-radius:8px;border:2px solid transparent;background-clip:content-box}
::-webkit-scrollbar-thumb:hover{background:#a9b4c6;border:2px solid transparent;background-clip:content-box}
::-webkit-scrollbar-track{background:transparent}

/* ===== 侧边栏 ===== */
.sidebar{width:216px;background:var(--sidebar);color:#c3cfe4;flex-shrink:0;display:flex;flex-direction:column;position:sticky;top:0;height:100vh;z-index:30}
.logo{display:flex;align-items:center;gap:11px;padding:20px 16px 18px;border-bottom:1px solid rgba(255,255,255,.07)}
.logo .mark{width:36px;height:36px;border-radius:10px;background:linear-gradient(135deg,#3b82f6 0%,#1d4ed8 100%);display:flex;align-items:center;justify-content:center;flex-shrink:0;box-shadow:0 4px 12px -2px rgba(37,99,235,.55),inset 0 1px 0 rgba(255,255,255,.25)}
.logo .name{color:#fff;font-size:15px;font-weight:600;line-height:1.25;letter-spacing:.01em}
.logo .sub{font-size:11px;color:#7f92b6;margin-top:1px}
.nav{flex:1;padding:10px 10px;overflow-y:auto}
.nav::-webkit-scrollbar-thumb{background:rgba(255,255,255,.14);border:2px solid transparent;background-clip:content-box}
.nav .group{font-size:10.5px;color:#5f7396;padding:14px 10px 6px;letter-spacing:.14em;font-weight:600}
.nav .group:first-child{padding-top:8px}
.nav a{position:relative;display:flex;align-items:center;gap:10px;padding:9px 11px;border-radius:var(--r-sm);color:#c3cfe4;text-decoration:none;font-size:13.5px;cursor:pointer;margin-bottom:2px;transition:background .18s,color .18s}
.nav a:hover{background:var(--sidebar-hover);color:#fff}
.nav a.active{background:var(--sidebar-active);color:#fff;font-weight:500}
.nav a.active::before{content:"";position:absolute;left:-10px;top:20%;bottom:20%;width:3px;border-radius:0 3px 3px 0;background:linear-gradient(180deg,#60a5fa,#2563eb);box-shadow:0 0 10px rgba(59,130,246,.65)}
.nav a svg{width:17px;height:17px;flex-shrink:0;opacity:.85}
.nav a.active svg{opacity:1}
.nav .badge{margin-left:auto;background:linear-gradient(135deg,#ef4444,#dc2626);color:#fff;font-size:11px;border-radius:10px;padding:1px 7px;box-shadow:0 2px 6px rgba(220,38,38,.4)}
.sidebar-foot{padding:14px 16px;border-top:1px solid rgba(255,255,255,.07);font-size:11.5px;color:#7f92b6;display:flex;align-items:center;gap:7px}
.sidebar-foot .dot{width:7px;height:7px;border-radius:50%;background:#22c55e;box-shadow:0 0 6px rgba(34,197,94,.8);flex-shrink:0}

/* ===== 主区 ===== */
.main{flex:1;min-width:0;display:flex;flex-direction:column}
.topbar{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.86);backdrop-filter:blur(12px) saturate(160%);-webkit-backdrop-filter:blur(12px) saturate(160%);border-bottom:1px solid var(--border);padding:13px 24px;display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.topbar h1{font-size:18px;font-weight:700;letter-spacing:.01em;margin-right:auto}
.topbar h1::after{content:"";display:inline-block;width:4px;height:16px;border-radius:2px;background:var(--primary);margin-left:11px;vertical-align:-2px}
.topbar .tb-actions{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.search{display:flex;align-items:center;gap:7px;background:#f5f7fb;border:1px solid var(--border);border-radius:var(--r-sm);padding:7px 12px;width:240px;transition:border-color .18s,box-shadow .18s,background .18s}
.search:focus-within{border-color:var(--primary);background:#fff;box-shadow:0 0 0 3.5px var(--primary-ring)}
.search input{border:none;outline:none;background:transparent;font-size:13.5px;width:100%;color:var(--text)}
.search input::placeholder{color:var(--text-faint)}
.user{display:flex;align-items:center;gap:10px}
.user .avatar{width:34px;height:34px;border-radius:50%;background:linear-gradient(135deg,#dbeafe,#bfdbfe);color:var(--primary-dark);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:13px;border:1px solid #c7d9f8}
.user .meta{line-height:1.3}
.user .meta .n{font-weight:600;font-size:13px}
.user .meta .r{font-size:11.5px;color:var(--text-sub)}
.content{padding:22px 24px;max-width:1240px;width:100%;margin:0 auto}

/* ===== 统计卡 ===== */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:18px}
.stat{background:var(--card);border:1px solid var(--border);border-radius:var(--r-md);padding:16px 18px;box-shadow:var(--sh-sm);transition:transform .22s,box-shadow .22s,border-color .22s;animation:rise .5s cubic-bezier(.22,.9,.36,1) both}
.stat:nth-child(2){animation-delay:.05s}.stat:nth-child(3){animation-delay:.1s}.stat:nth-child(4){animation-delay:.15s}
.stat:hover{transform:translateY(-3px);box-shadow:var(--sh-lg);border-color:var(--border-strong)}
.stat .label{font-size:12.5px;color:var(--text-sub);display:flex;align-items:center;gap:9px;font-weight:500}
.s-ico{width:28px;height:28px;border-radius:var(--r-sm);display:inline-flex;align-items:center;justify-content:center;flex-shrink:0}
.s-ico svg{width:15px;height:15px}
.ico-blue{background:var(--primary-soft);color:var(--primary)}
.ico-cyan{background:#ecfeff;color:#0e7490}
.ico-red{background:var(--red-bg);color:var(--red)}
.ico-amber{background:var(--amber-bg);color:var(--amber)}
.stat .num{font-size:27px;font-weight:750;margin-top:9px;letter-spacing:-.01em;font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}
.stat .num.warn{color:var(--red)} .stat .num.amber{color:var(--amber)}
.stat .desc{font-size:11.5px;color:var(--text-faint);margin-top:3px}
.stat.alert-tint{border-color:#f6cfcf;background:linear-gradient(180deg,#fffbfb,#fff 56%)}
.stat.alert-tint:hover{border-color:#efb3b3}
@keyframes rise{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}

/* ===== 面板与表格 ===== */
.panel{background:var(--card);border:1px solid var(--border);border-radius:var(--r-md);overflow:hidden;box-shadow:var(--sh-sm);animation:rise .5s .18s cubic-bezier(.22,.9,.36,1) both}
.panel-head{display:flex;align-items:center;gap:6px;padding:13px 16px;border-bottom:1px solid var(--border);flex-wrap:wrap}
.panel-title{font-size:14.5px;font-weight:600;margin-right:6px}
.tabs{display:flex;gap:4px;flex-wrap:wrap}
.tab{padding:6px 14px;border-radius:var(--r-sm);font-size:13px;cursor:pointer;color:var(--text-sub);border:1px solid transparent;transition:background .15s,color .15s;background:none;font-family:inherit}
.tab:hover{background:var(--bg)}
.tab.active{background:var(--primary-soft);color:var(--primary);font-weight:600;box-shadow:inset 0 0 0 1px rgba(37,99,235,.18)}
.tab .cnt{font-size:11px;background:rgba(15,31,73,.06);border-radius:8px;padding:0 6px;margin-left:4px;font-variant-numeric:tabular-nums}
.tab.active .cnt{background:rgba(37,99,235,.14)}
.head-note{margin-left:auto;font-size:12px;color:var(--text-faint);display:flex;align-items:center;gap:6px}
.head-note::before{content:"";width:6px;height:6px;border-radius:50%;background:#cbd5e1;flex-shrink:0}
.table-wrap{overflow-x:auto}
table{width:100%;table-layout:fixed;border-collapse:collapse}
th{background:#f8fafc;text-align:left;padding:10px 14px;font-size:11.5px;color:var(--text-sub);font-weight:600;letter-spacing:.04em;border-bottom:1px solid var(--border);white-space:nowrap}
td{padding:12px 14px;border-bottom:1px solid #f1f5fa;vertical-align:middle}
tr:last-child td{border-bottom:none}
tbody tr{transition:background .13s}
tr:hover td{background:#f7faff}
.g-name{font-weight:600;font-size:13.5px}
.g-sub{font-size:11.5px;color:var(--amber);margin-top:3px;display:flex;align-items:center;gap:5px}
.g-sub::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--amber);flex-shrink:0}
.cat-chip{display:inline-block;background:#f1f5f9;color:var(--text-sub);border-radius:6px;padding:2.5px 9px;font-size:11.5px;font-weight:500}
.unit{color:var(--text-sub);font-size:13px}
.qty b{font-size:15px;font-weight:700;font-variant-numeric:tabular-nums}
.qty b.low-q{color:var(--red)}
.qty .bar{margin-top:6px;width:72px;height:4px;border-radius:4px;background:#e8edf5;overflow:hidden}
.qty .bar i{display:block;height:100%;border-radius:4px;transition:width .5s cubic-bezier(.22,.9,.36,1)}
.bar i.b-ok{background:linear-gradient(90deg,#60a5fa,#2563eb)}
.bar i.b-mid{background:linear-gradient(90deg,#fbbf24,#d97706)}
.bar i.b-low{background:linear-gradient(90deg,#f87171,#dc2626)}
.warn-v{color:var(--text-sub);font-variant-numeric:tabular-nums}
.badge{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:500;padding:3.5px 11px;border-radius:999px;white-space:nowrap}
.badge::before{content:"";width:6px;height:6px;border-radius:50%;background:currentColor;flex-shrink:0}
.badge.ok{background:var(--green-bg);color:var(--green)}
.badge.low{background:var(--red-bg);color:var(--red)}
.badge.low::before{animation:pulse 1.6s ease-out infinite}
.badge.exp{background:var(--amber-bg);color:var(--amber)}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(220,38,38,.45)}70%{box-shadow:0 0 0 5px rgba(220,38,38,0)}100%{box-shadow:0 0 0 0 rgba(220,38,38,0)}}

/* ===== 按钮 ===== */
.btn{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--border);background:#fff;color:var(--text);border-radius:7px;padding:7px 16px;font-size:13px;cursor:pointer;font-weight:500;font-family:inherit;transition:all .15s;line-height:1.4}
.btn:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-soft);box-shadow:0 1px 4px rgba(37,99,235,.14)}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--primary);border-color:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-dark);color:#fff;border-color:var(--primary-dark);box-shadow:0 4px 12px -2px rgba(37,99,235,.5)}
.btn-danger{border-color:#f3c1c1;color:var(--red);background:#fff}
.btn-danger:hover{border-color:var(--red);background:var(--red-bg)}
.btn-sm{padding:4.5px 12px;font-size:12px}
.btn:focus-visible,.nav a:focus-visible,.tab:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:2px solid var(--primary);outline-offset:2px}

/* ===== 表单 ===== */
.form-card{background:var(--card);border:1px solid var(--border);border-radius:var(--r-md);padding:22px 24px;box-shadow:var(--sh-sm);max-width:860px;animation:rise .45s cubic-bezier(.22,.9,.36,1) both}
.form-row{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:15px}
.form-field{flex:1;min-width:220px}
.form-field label{display:block;font-size:12.5px;color:var(--text-sub);font-weight:500;margin-bottom:6px}
.form-field label .req{color:var(--red);margin-left:2px}
.form-field input,.form-field select,.form-field textarea{width:100%;border:1px solid var(--border);border-radius:var(--r-sm);padding:8px 12px;font-size:13.5px;font-family:inherit;color:var(--text);background:#fff;transition:border-color .18s,box-shadow .18s}
.form-field input:focus,.form-field select:focus,.form-field textarea:focus{border-color:var(--primary);box-shadow:0 0 0 3.5px var(--primary-ring);outline:none}
.form-field input::placeholder,.form-field textarea::placeholder{color:var(--text-faint)}
.form-field textarea{resize:vertical;min-height:70px}
.form-field .hint{font-size:11.5px;color:var(--text-faint);margin-top:4px}
.form-actions{display:flex;gap:10px;margin-top:8px;padding-top:16px;border-top:1px solid #f1f5fa}
.checkbox-line{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text)}
.checkbox-line input{width:16px;height:16px;accent-color:var(--primary)}

/* ===== 明细表格（进货单/出库单商品行） ===== */
.items-table table{table-layout:auto}
.items-table th:first-child{width:40%}
.items-table td input,.items-table td select{width:100%;border:1px solid var(--border);border-radius:6px;padding:6px 9px;font-size:13px;font-family:inherit}
.items-table td input:focus,.items-table td select:focus{border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-ring);outline:none}
.items-table .del-row{border:1px solid var(--border);background:#fff;color:var(--text-sub);border-radius:6px;width:30px;height:30px;cursor:pointer;font-size:16px;line-height:1;transition:all .15s}
.items-table .del-row:hover{border-color:var(--red);color:var(--red);background:var(--red-bg)}

/* ===== 分页 ===== */
.pagination{display:flex;align-items:center;gap:6px;padding:14px 16px;flex-wrap:wrap}
.pagination a,.pagination span{display:inline-flex;align-items:center;justify-content:center;min-width:30px;height:30px;padding:0 8px;border:1px solid var(--border);border-radius:6px;font-size:12.5px;color:var(--text-sub);background:#fff;cursor:pointer;transition:all .15s}
.pagination a:hover{border-color:var(--primary);color:var(--primary)}
.pagination .cur{background:var(--primary);border-color:var(--primary);color:#fff;font-weight:600}
.pagination .info{margin-left:auto;font-size:12px;color:var(--text-faint)}

/* ===== 弹窗 ===== */
.modal-mask{position:fixed;inset:0;background:rgba(16,29,61,.45);backdrop-filter:blur(3px);z-index:80;display:none;align-items:flex-start;justify-content:center;padding:6vh 16px;overflow-y:auto}
.modal-mask.show{display:flex}
.modal{background:#fff;border-radius:var(--r-lg);width:100%;max-width:560px;box-shadow:var(--sh-lg);animation:rise .28s cubic-bezier(.22,.9,.36,1) both}
.modal-head{display:flex;align-items:center;padding:16px 20px;border-bottom:1px solid var(--border)}
.modal-head h3{font-size:15.5px;font-weight:600;margin-right:auto}
.modal-close{border:none;background:none;font-size:20px;color:var(--text-faint);cursor:pointer;line-height:1;padding:4px}
.modal-close:hover{color:var(--text)}
.modal-body{padding:20px}
.modal-foot{display:flex;justify-content:flex-end;gap:10px;padding:14px 20px;border-top:1px solid #f1f5fa}

/* ===== toast ===== */
.toast{position:fixed;left:50%;bottom:32px;transform:translateX(-50%) translateY(80px);background:#111e38;color:#fff;padding:11px 22px;border-radius:10px;font-size:13px;opacity:0;transition:all .28s cubic-bezier(.22,.9,.36,1);z-index:99;pointer-events:none;box-shadow:0 10px 32px rgba(9,19,42,.32),inset 0 1px 0 rgba(255,255,255,.08)}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}

/* ===== 占位视图 ===== */
.placeholder{background:var(--card);border:1px dashed var(--border-strong);border-radius:var(--r-md);padding:64px 20px;text-align:center;color:var(--text-sub);animation:rise .45s both}
.placeholder .ph-ico{width:64px;height:64px;border-radius:18px;background:var(--primary-soft);color:var(--primary);display:inline-flex;align-items:center;justify-content:center;margin-bottom:16px}
.placeholder h3{color:var(--text);font-size:16px;margin-bottom:7px;font-weight:600}
.placeholder p{font-size:13px;max-width:360px;margin:0 auto;line-height:1.7}
.empty{padding:44px;text-align:center;color:var(--text-sub);font-size:13px}
.foot{text-align:center;color:var(--text-faint);font-size:11.5px;padding:18px 0 10px}

/* ===== 登录页 ===== */
.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px;background:linear-gradient(160deg,#101d3a 0%,#16294d 45%,#1d3a6e 100%)}
.login-card{width:100%;max-width:400px;background:#fff;border-radius:16px;padding:34px 32px 28px;box-shadow:0 24px 60px -12px rgba(9,19,42,.5);animation:rise .5s cubic-bezier(.22,.9,.36,1) both}
.login-logo{display:flex;align-items:center;gap:11px;margin-bottom:26px}
.login-logo .mark{width:42px;height:42px;border-radius:12px;background:linear-gradient(135deg,#3b82f6,#1d4ed8);display:flex;align-items:center;justify-content:center;box-shadow:0 6px 16px -4px rgba(37,99,235,.6),inset 0 1px 0 rgba(255,255,255,.25)}
.login-logo .name{font-size:17px;font-weight:700;color:var(--text)}
.login-logo .sub{font-size:12px;color:var(--text-sub);margin-top:1px}
.login-card .form-field{margin-bottom:16px}
.login-card .btn-primary{width:100%;padding:10px;font-size:14px;justify-content:center}
.login-err{background:var(--red-bg);color:var(--red);border-radius:8px;padding:9px 12px;font-size:12.5px;margin-bottom:14px}
.login-tip{text-align:center;font-size:11.5px;color:var(--text-faint);margin-top:16px}

/* ===== 明细视图（单据详情） ===== */
.view-card{background:var(--card);border:1px solid var(--border);border-radius:var(--r-md);box-shadow:var(--sh-sm);overflow:hidden;margin-bottom:16px;animation:rise .45s cubic-bezier(.22,.9,.36,1) both}
.view-head{display:flex;align-items:center;flex-wrap:wrap;gap:10px;padding:16px 20px;border-bottom:1px solid var(--border)}
.view-head .no{font-size:15px;font-weight:700;margin-right:auto}
.view-body{padding:16px 20px}
.kv-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:12px 24px}
.kv .k{font-size:11.5px;color:var(--text-faint);margin-bottom:3px}
.kv .v{font-size:13.5px;font-weight:500}

/* ===== 响应式 ===== */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
}
@media (max-width:900px){
  .layout{flex-direction:column}
  .sidebar{width:100%;height:auto;position:static;flex-direction:row;align-items:center;overflow-x:auto}
  .logo{border-bottom:none;padding:12px 14px}
  .nav{display:flex;padding:8px;gap:2px;flex:1}
  .nav .group{display:none}
  .nav a{white-space:nowrap;padding:8px 12px}
  .nav a.active::before{display:none}
  .nav a .lbl{display:none}
  .sidebar-foot{display:none}
  .stats{grid-template-columns:repeat(2,1fr)}
  .topbar{padding:12px 14px}
  .search{width:100%;order:3}
  .content{padding:14px}
  table{min-width:720px}
  .form-card{padding:16px}
  .kv-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:480px){ .stats{grid-template-columns:1fr 1fr} }

/* 操作列 / 弹窗标题（补充） */
.ops{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.modal-title{font-size:15.5px;font-weight:600;padding:16px 20px;border-bottom:1px solid var(--border)}
.modal .form-actions{margin:0;padding:14px 20px}
.modal .form-field{padding:0 20px}
.modal form .form-field:first-of-type{margin-top:16px}

/* 列表筛选条（查询条件区） */
.filters{display:flex;align-items:flex-end;gap:14px;flex-wrap:wrap;padding:13px 16px;background:var(--bg);border-bottom:1px solid var(--border)}
.filters .f-item{display:flex;flex-direction:column;gap:5px}
.filters .f-item label{font-size:11.5px;color:var(--text-faint);font-weight:500}
.filters input,.filters select{height:34px;border:1px solid var(--border);border-radius:8px;padding:0 10px;font-size:13px;color:var(--text);background:#fff;outline:none;font-family:inherit;transition:border-color .15s,box-shadow .15s}
.filters input:focus,.filters select:focus{border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-ring)}
.filters .f-date{display:flex;align-items:center;gap:6px}
.filters .f-date span{color:var(--text-faint);font-size:12px}
.filters .f-actions{display:flex;gap:8px;align-items:center;margin-left:auto}
.filters .f-actions .btn{margin:0}
@media (max-width:900px){ .filters .f-actions{margin-left:0} }