/* =====================================================================
   珠声传媒 ERP 仓库管理系统 - 主样式表
   主题：海军蓝 / 深灰 / 白  (专业商务低饱和)
   版本：2.0 UI 优化版
   ===================================================================== */

:root{
  /* 主色系 - 海军蓝层次 */
  --c-primary-50:#eef3f9;
  --c-primary-100:#d9e4ef;
  --c-primary-200:#b3c9df;
  --c-primary-300:#8dafcf;
  --c-primary:#1e3a5f;        /* 海军蓝 - 主色 */
  --c-primary-dark:#15293f;   /* 深蓝 - 侧边栏底 */
  --c-primary-darker:#0f1e30;
  --c-primary-light:#2c5282;  /* 中蓝 */
  --c-primary-lighter:#3b6ea5;/* 亮蓝 - 强调色 */
  --c-accent:#3b6ea5;

  /* 中性灰 */
  --c-gray-50:#f7f9fc;
  --c-gray-100:#edf1f6;
  --c-gray-200:#e2e8f0;
  --c-gray-300:#cbd5e0;
  --c-gray-400:#a0aec0;
  --c-gray-500:#718096;
  --c-gray-600:#4a5568;
  --c-gray-700:#2d3748;
  --c-gray-800:#1a202c;
  --c-gray-900:#0f1419;

  --c-secondary:#4a5568;      /* 深灰 */
  --c-bg:#f4f6f9;             /* 页面背景 */
  --c-bg-alt:#f7f9fc;
  --c-card:#ffffff;
  --c-border:#d8dee6;
  --c-border-light:#e6ebf1;
  --c-text:#2d3748;
  --c-text-muted:#718096;
  --c-text-light:#a0aec0;

  /* 语义色 */
  --c-success:#2f855a;
  --c-success-dark:#276749;
  --c-success-bg:#e6f4ec;
  --c-success-bg-alt:#f0faf5;
  --c-warning:#b7791f;
  --c-warning-dark:#975a16;
  --c-warning-bg:#fdf6e3;
  --c-warning-bg-alt:#fefaf0;
  --c-danger:#9b2c2c;
  --c-danger-dark:#742a2a;
  --c-danger-bg:#fce8e8;
  --c-danger-bg-alt:#fef0f0;
  --c-info:#2b6cb0;
  --c-info-dark:#2c5282;
  --c-info-bg:#e8f0fa;
  --c-info-bg-alt:#f0f6fd;

  /* 阴影系统 */
  --shadow-xs:0 1px 2px rgba(15,23,42,.04);
  --shadow-sm:0 1px 3px rgba(15,23,42,.06),0 1px 2px rgba(15,23,42,.04);
  --shadow:0 2px 6px rgba(15,23,42,.06),0 1px 3px rgba(15,23,42,.04);
  --shadow-md:0 4px 12px rgba(15,23,42,.08),0 2px 4px rgba(15,23,42,.04);
  --shadow-lg:0 8px 24px rgba(15,23,42,.10),0 4px 8px rgba(15,23,42,.04);
  --shadow-xl:0 16px 40px rgba(15,23,42,.12),0 8px 16px rgba(15,23,42,.06);
  --shadow-card:0 1px 3px rgba(15,23,42,.05),0 1px 2px rgba(15,23,42,.03);
  --shadow-card-hover:0 6px 18px rgba(15,23,42,.08),0 2px 6px rgba(15,23,42,.04);

  /* 圆角系统 */
  --radius-xs:3px;
  --radius-sm:4px;
  --radius:6px;
  --radius-md:8px;
  --radius-lg:10px;
  --radius-xl:12px;
  --radius-full:9999px;

  /* 过渡曲线 */
  --ease-smooth:cubic-bezier(.4,0,.2,1);
  --ease-bounce:cubic-bezier(.34,1.56,.64,1);
  --transition-fast:all .15s var(--ease-smooth);
  --transition:all .2s var(--ease-smooth);
  --transition-slow:all .3s var(--ease-smooth);
}

/* 全局重置 & 基础 */
*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%}
body{
  font-family:"Microsoft YaHei","Segoe UI","PingFang SC","Hiragino Sans GB",-apple-system,system-ui,BlinkMacSystemFont,sans-serif;
  font-size:14px;
  color:var(--c-text);
  background:var(--c-bg);
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  text-rendering:optimizeLegibility;
}
a{color:var(--c-accent);text-decoration:none;transition:var(--transition-fast)}
a:hover{color:var(--c-primary);text-decoration:none}
code{background:var(--c-gray-100);padding:2px 6px;border-radius:var(--radius-xs);font-family:Consolas,"SF Mono",Monaco,monospace;font-size:.92em;color:var(--c-gray-700)}
img{max-width:100%;height:auto;display:block}
::selection{background:var(--c-primary-200);color:var(--c-primary-dark)}
::-webkit-scrollbar{width:8px;height:8px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:var(--c-gray-300);border-radius:var(--radius-full);transition:var(--transition)}
::-webkit-scrollbar-thumb:hover{background:var(--c-gray-400)}

/* ---------------- 布局 ---------------- */
.app-layout{display:flex;min-height:100vh;position:relative}

/* ===== 侧边栏 ===== */
.sidebar{
  width:232px;
  background:linear-gradient(180deg,var(--c-primary-darker) 0%,var(--c-primary-dark) 40%,var(--c-primary) 100%);
  color:#cbd5e0;
  flex-shrink:0;
  display:flex;
  flex-direction:column;
  position:fixed;
  top:0;left:0;bottom:0;
  z-index:100;
  transition:transform .28s var(--ease-smooth),width .28s var(--ease-smooth);
  box-shadow:2px 0 12px rgba(0,0,0,.08);
}
.sidebar::before{
  content:'';
  position:absolute;
  top:0;right:0;bottom:0;
  width:1px;
  background:linear-gradient(180deg,transparent,rgba(255,255,255,.08) 10%,rgba(255,255,255,.08) 90%,transparent);
}
.sidebar .brand{
  padding:22px 24px 18px;
  color:#fff;
  border-bottom:1px solid rgba(255,255,255,.08);
  position:relative;
}
.sidebar .brand h1{
  font-size:16px;
  font-weight:700;
  letter-spacing:.5px;
  background:linear-gradient(135deg,#fff 0%,#b3c9df 100%);
  -webkit-background-clip:text;
  -webkit-text-fill-color:transparent;
  background-clip:text;
}
.sidebar .brand small{display:block;color:#7a8aa3;font-size:11px;margin-top:4px;letter-spacing:.3px}
.sidebar .nav{flex:1;overflow-y:auto;padding:10px 0 14px;scrollbar-width:thin}
.sidebar .nav::-webkit-scrollbar{width:4px}
.sidebar .nav::-webkit-scrollbar-thumb{background:rgba(255,255,255,.15)}
.sidebar .nav-section{padding:16px 24px 6px;font-size:10.5px;color:#5a718f;text-transform:uppercase;letter-spacing:1.5px;font-weight:600}
.sidebar .nav a{
  display:flex;align-items:center;gap:12px;
  padding:11px 24px;color:#9fb0c8;font-size:13.5px;
  border-left:3px solid transparent;
  margin:2px 0;
  position:relative;
  transition:var(--transition);
}
.sidebar .nav a .icon{
  width:20px;text-align:center;opacity:.75;
  font-size:15px;
  transition:var(--transition);
  flex-shrink:0;
}
.sidebar .nav a:hover{
  background:linear-gradient(90deg,rgba(255,255,255,.08),rgba(255,255,255,.02));
  color:#fff;
  text-decoration:none;
  padding-left:28px;
}
.sidebar .nav a:hover .icon{opacity:1;transform:scale(1.05)}
.sidebar .nav a.active{
  background:linear-gradient(90deg,rgba(79,143,199,.22),rgba(79,143,199,.04));
  color:#fff;
  border-left-color:#4f8fc7;
}
.sidebar .nav a.active .icon{opacity:1;color:#6fb3e8}
.sidebar .nav a.active::after{
  content:'';
  position:absolute;
  right:14px;top:50%;transform:translateY(-50%);
  width:5px;height:5px;border-radius:50%;
  background:#4f8fc7;
  box-shadow:0 0 8px rgba(79,143,199,.6);
}
.sidebar .sidebar-footer{
  padding:14px 24px;
  font-size:11px;
  color:#5a718f;
  border-top:1px solid rgba(255,255,255,.06);
  line-height:1.6;
  background:rgba(0,0,0,.1);
}

/* ===== 主区域 ===== */
.main{flex:1;margin-left:232px;display:flex;flex-direction:column;min-width:0;background:var(--c-bg)}
.topbar{
  height:58px;
  background:var(--c-card);
  border-bottom:1px solid var(--c-border-light);
  display:flex;align-items:center;justify-content:space-between;
  padding:0 28px;
  box-shadow:var(--shadow-xs);
  position:sticky;top:0;z-index:50;
  backdrop-filter:saturate(180%) blur(8px);
  background:rgba(255,255,255,.92);
}
.topbar .page-title{
  font-size:15.5px;
  font-weight:600;
  color:var(--c-primary-dark);
  letter-spacing:.2px;
}
.topbar .topbar-right{display:flex;align-items:center;gap:16px}
.topbar .user-chip{
  display:flex;align-items:center;gap:10px;
  font-size:13px;color:var(--c-secondary);
  padding:4px 12px 4px 4px;
  border-radius:var(--radius-full);
  transition:var(--transition-fast);
  cursor:default;
}
.topbar .user-chip:hover{background:var(--c-gray-50)}
.topbar .avatar{
  width:34px;height:34px;border-radius:50%;
  background:linear-gradient(135deg,var(--c-primary) 0%,var(--c-primary-light) 100%);
  color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-size:13px;font-weight:600;
  box-shadow:0 2px 6px rgba(30,58,95,.25);
  position:relative;
}
.topbar .avatar::after{
  content:'';
  position:absolute;
  right:0;bottom:0;
  width:9px;height:9px;
  background:#38a169;
  border:2px solid #fff;
  border-radius:50%;
}
.content{padding:26px 28px;flex:1}

/* ===== 卡片 / 面板 ===== */
.card{
  background:var(--c-card);
  border:1px solid var(--c-border-light);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-card);
  transition:box-shadow .25s var(--ease-smooth),transform .25s var(--ease-smooth);
  overflow:hidden;
}
.card:hover{box-shadow:var(--shadow-card-hover)}
.card-header{
  padding:16px 22px;
  border-bottom:1px solid var(--c-border-light);
  display:flex;justify-content:space-between;align-items:center;
  background:linear-gradient(180deg,var(--c-gray-50) 0%,#fff 100%);
}
.card-header h3{
  font-size:14.5px;
  color:var(--c-primary-dark);
  font-weight:600;
  letter-spacing:.2px;
  display:flex;align-items:center;gap:8px;
}
.card-header h3::before{
  content:'';
  width:3px;height:14px;
  background:linear-gradient(180deg,var(--c-primary),var(--c-accent));
  border-radius:var(--radius-xs);
}
.card-body{padding:22px}
.card-body.flush{padding:0}

/* ===== 统计卡片 ===== */
.stat-grid{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(220px,1fr));
  gap:18px;
  margin-bottom:22px;
}
.stat-card{
  background:var(--c-card);
  border:1px solid var(--c-border-light);
  border-radius:var(--radius-lg);
  padding:22px 24px;
  box-shadow:var(--shadow-card);
  position:relative;
  overflow:hidden;
  transition:var(--transition);
  cursor:default;
}
.stat-card::before{
  content:'';
  position:absolute;
  top:0;left:0;right:0;
  height:3px;
  background:linear-gradient(90deg,var(--c-primary),var(--c-accent));
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .35s var(--ease-smooth);
}
.stat-card:hover{
  box-shadow:var(--shadow-md);
  transform:translateY(-2px);
  border-color:var(--c-gray-200);
}
.stat-card:hover::before{transform:scaleX(1)}
.stat-card .stat-label{
  font-size:12.5px;
  color:var(--c-text-muted);
  margin-bottom:10px;
  font-weight:500;
  letter-spacing:.2px;
}
.stat-card .stat-value{
  font-size:28px;
  font-weight:700;
  color:var(--c-primary-dark);
  letter-spacing:-.3px;
  line-height:1.2;
}
.stat-card .stat-sub{
  font-size:12px;
  color:var(--c-text-muted);
  margin-top:10px;
  padding-top:10px;
  border-top:1px dashed var(--c-border-light);
}
.stat-card .stat-icon{
  position:absolute;
  right:18px;top:18px;
  width:48px;height:48px;
  border-radius:var(--radius-md);
  display:flex;align-items:center;justify-content:center;
  font-size:22px;
  background:linear-gradient(135deg,var(--c-primary-50),var(--c-primary-100));
  color:var(--c-primary);
  opacity:.85;
  transition:var(--transition);
}
.stat-card:hover .stat-icon{opacity:1;transform:rotate(-6deg) scale(1.05)}
.stat-card.danger::before{background:linear-gradient(90deg,var(--c-danger),#e53e3e)}
.stat-card.danger .stat-value{color:var(--c-danger-dark)}
.stat-card.danger .stat-icon{background:linear-gradient(135deg,var(--c-danger-bg),var(--c-danger-bg-alt));color:var(--c-danger)}
.stat-card.warning::before{background:linear-gradient(90deg,var(--c-warning),#d69e2e)}
.stat-card.warning .stat-value{color:var(--c-warning-dark)}
.stat-card.warning .stat-icon{background:linear-gradient(135deg,var(--c-warning-bg),var(--c-warning-bg-alt));color:var(--c-warning)}
.stat-card.success::before{background:linear-gradient(90deg,var(--c-success),#38a169)}
.stat-card.success .stat-value{color:var(--c-success-dark)}
.stat-card.success .stat-icon{background:linear-gradient(135deg,var(--c-success-bg),var(--c-success-bg-alt));color:var(--c-success)}
.stat-card.info::before{background:linear-gradient(90deg,var(--c-info),var(--c-accent))}
.stat-card.info .stat-value{color:var(--c-info-dark)}
.stat-card.info .stat-icon{background:linear-gradient(135deg,var(--c-info-bg),var(--c-info-bg-alt));color:var(--c-info)}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  padding:8px 18px;
  border:1px solid var(--c-border);
  background:#fff;
  color:var(--c-text);
  border-radius:var(--radius);
  font-size:13px;
  font-weight:500;
  cursor:pointer;
  transition:var(--transition-fast);
  font-family:inherit;
  text-decoration:none;
  line-height:1.3;
  white-space:nowrap;
  position:relative;
  overflow:hidden;
}
.btn::after{
  content:'';
  position:absolute;
  inset:0;
  background:currentColor;
  opacity:0;
  transition:opacity .15s;
  pointer-events:none;
}
.btn:hover::after{opacity:.04}
.btn:active::after{opacity:.08}
.btn:hover{
  background:#f7fafc;
  border-color:var(--c-gray-300);
  text-decoration:none;
  box-shadow:var(--shadow-xs);
}
.btn:active{transform:translateY(1px)}
.btn-primary{
  background:linear-gradient(135deg,var(--c-primary) 0%,var(--c-primary-light) 100%);
  border-color:var(--c-primary);
  color:#fff;
  box-shadow:0 1px 3px rgba(30,58,95,.2);
}
.btn-primary:hover{
  background:linear-gradient(135deg,var(--c-primary-dark) 0%,var(--c-primary) 100%);
  color:#fff;
  box-shadow:0 3px 10px rgba(30,58,95,.3);
}
.btn-primary:active{box-shadow:0 1px 3px rgba(30,58,95,.2)}
.btn-accent{
  background:linear-gradient(135deg,var(--c-accent) 0%,var(--c-primary-light) 100%);
  border-color:var(--c-accent);
  color:#fff;
  box-shadow:0 1px 3px rgba(59,110,165,.25);
}
.btn-accent:hover{
  background:linear-gradient(135deg,var(--c-primary-light) 0%,var(--c-primary) 100%);
  color:#fff;
  box-shadow:0 3px 10px rgba(59,110,165,.35);
}
.btn-success{
  background:linear-gradient(135deg,var(--c-success) 0%,#38a169 100%);
  border-color:var(--c-success);
  color:#fff;
  box-shadow:0 1px 3px rgba(47,133,90,.2);
}
.btn-success:hover{filter:none;box-shadow:0 3px 10px rgba(47,133,90,.3);color:#fff;background:linear-gradient(135deg,var(--c-success-dark) 0%,var(--c-success) 100%)}
.btn-danger{
  background:linear-gradient(135deg,var(--c-danger) 0%,#c53030 100%);
  border-color:var(--c-danger);
  color:#fff;
  box-shadow:0 1px 3px rgba(155,44,44,.2);
}
.btn-danger:hover{filter:none;box-shadow:0 3px 10px rgba(155,44,44,.3);color:#fff;background:linear-gradient(135deg,var(--c-danger-dark) 0%,var(--c-danger) 100%)}
.btn-ghost{background:transparent;border-color:transparent;color:var(--c-text-muted)}
.btn-ghost:hover{background:var(--c-gray-50);color:var(--c-text);border-color:var(--c-border)}
.btn-sm{padding:5px 12px;font-size:12px;border-radius:var(--radius-sm)}
.btn-link{background:none;border:none;color:var(--c-accent);padding:2px 4px;cursor:pointer;font-family:inherit;font-size:13px;font-weight:500}
.btn-link:hover{text-decoration:underline;background:none;box-shadow:none}
.btn:disabled{opacity:.5;cursor:not-allowed;transform:none !important;box-shadow:none !important}
.btn:disabled:hover{background:inherit}
.btn-group{display:flex;gap:8px;flex-wrap:wrap}

/* ===== 表单 ===== */
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.form-group{margin-bottom:16px}
.form-group label{
  display:block;
  font-size:13px;
  margin-bottom:6px;
  color:var(--c-gray-600);
  font-weight:500;
  letter-spacing:.1px;
}
.form-group label .req{color:var(--c-danger);margin-left:2px}
.input,select,textarea{
  width:100%;
  padding:8px 12px;
  border:1px solid var(--c-border);
  border-radius:var(--radius);
  font-size:13.5px;
  font-family:inherit;
  background:#fff;
  color:var(--c-text);
  transition:var(--transition-fast);
}
.input:hover,select:hover,textarea:hover{border-color:var(--c-gray-300)}
.input:focus,select:focus,textarea:focus{
  outline:none;
  border-color:var(--c-accent);
  box-shadow:0 0 0 3px rgba(59,110,165,.10),0 1px 2px rgba(59,110,165,.06);
  background:#fff;
}
textarea{resize:vertical;min-height:72px}
select{
  appearance:none;
  background-image:url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23718096' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
  background-repeat:no-repeat;
  background-position:right 10px center;
  background-size:16px;
  padding-right:34px;
  cursor:pointer;
}
.form-actions{margin-top:22px;display:flex;gap:10px;justify-content:flex-end;padding-top:18px;border-top:1px solid var(--c-border-light)}
.help{font-size:12px;color:var(--c-text-muted);margin-top:5px}

/* ===== 表格 ===== */
.table{width:100%;border-collapse:separate;border-spacing:0;font-size:13px}
.table thead th{
  background:linear-gradient(180deg,var(--c-gray-50),var(--c-gray-100));
  color:var(--c-gray-600);
  font-weight:600;
  text-align:left;
  padding:11px 14px;
  border-bottom:1px solid var(--c-border);
  white-space:nowrap;
  font-size:12.5px;
  letter-spacing:.2px;
  text-transform:uppercase;
}
.table thead th:first-child{border-top-left-radius:var(--radius)}
.table thead th:last-child{border-top-right-radius:var(--radius)}
.table tbody td{
  padding:11px 14px;
  border-bottom:1px solid var(--c-border-light);
  vertical-align:middle;
  transition:background-color .15s;
}
.table tbody tr:last-child td{border-bottom:none}
.table tbody tr:hover td{background:var(--c-gray-50)}
.table .text-right{text-align:right}
.table .text-center{text-align:center}
.table .text-muted{color:var(--c-text-muted)}
.table-wrap{overflow-x:auto;border-radius:var(--radius-lg)}

/* 状态标签 */
.tag{
  display:inline-flex;align-items:center;
  padding:3px 10px;
  border-radius:var(--radius-full);
  font-size:11.5px;
  font-weight:500;
  white-space:nowrap;
  letter-spacing:.2px;
}
.tag-success{background:var(--c-success-bg);color:var(--c-success-dark);border:1px solid #bfe3cf}
.tag-warning{background:var(--c-warning-bg);color:var(--c-warning-dark);border:1px solid #f0dca8}
.tag-danger{background:var(--c-danger-bg);color:var(--c-danger-dark);border:1px solid #f1c2c2}
.tag-info{background:var(--c-info-bg);color:var(--c-info-dark);border:1px solid #bcd6f0}
.tag-muted{background:var(--c-gray-100);color:var(--c-gray-600);border:1px solid var(--c-gray-200)}
.tag-primary{background:var(--c-primary-50);color:var(--c-primary-dark);border:1px solid var(--c-primary-100)}

/* ===== 工具栏 ===== */
.toolbar{
  display:flex;justify-content:space-between;align-items:center;
  gap:12px;margin-bottom:18px;flex-wrap:wrap;
  padding:14px 18px;
  background:var(--c-card);
  border:1px solid var(--c-border-light);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-xs);
}
.toolbar .filters{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.toolbar .filters .input,.toolbar .filters select{width:auto;min-width:150px}
.search-box{position:relative}
.search-box input{
  padding-left:36px;
  border-radius:var(--radius-full);
  min-width:220px;
}
.search-box:before{
  content:'';
  position:absolute;left:12px;top:50%;transform:translateY(-50%);
  width:16px;height:16px;
  background-image:url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23718096' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3ccircle cx='11' cy='11' r='8'%3e%3c/circle%3e%3cline x1='21' y1='21' x2='16.65' y2='16.65'%3e%3c/line%3e%3c/svg%3e");
  background-size:contain;background-repeat:no-repeat;
  opacity:.6;
}

/* ===== 分页 ===== */
.pagination{display:flex;align-items:center;gap:4px;justify-content:center;margin-top:18px;font-size:13px;flex-wrap:wrap}
.pagination a,.pagination span{
  display:inline-flex;align-items:center;justify-content:center;
  min-width:32px;height:32px;
  padding:0 10px;
  border:1px solid var(--c-border);
  border-radius:var(--radius-sm);
  background:#fff;
  color:var(--c-text);
  font-weight:500;
  transition:var(--transition-fast);
}
.pagination a:hover{
  background:var(--c-primary-50);
  color:var(--c-primary);
  border-color:var(--c-primary-200);
  text-decoration:none;
}
.pagination .active{
  background:linear-gradient(135deg,var(--c-primary),var(--c-primary-light));
  color:#fff;
  border-color:var(--c-primary);
  box-shadow:0 1px 4px rgba(30,58,95,.25);
}
.pagination .pg-info{border:none;background:none;color:var(--c-text-muted);margin-right:8px;min-width:auto;height:auto;padding:0 6px}

/* ===== 提示 ===== */
.alert{
  padding:12px 16px;
  border-radius:var(--radius-md);
  margin-bottom:14px;
  font-size:13px;
  border:1px solid transparent;
  display:flex;align-items:flex-start;gap:10px;
  line-height:1.6;
}
.alert::before{
  content:'';
  flex-shrink:0;
  width:18px;height:18px;margin-top:1px;
  background-size:contain;background-repeat:no-repeat;background-position:center;
  opacity:.85;
}
.alert-success{background:var(--c-success-bg);color:var(--c-success-dark);border-color:#c6f0d6}
.alert-success::before{background-image:url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23276749' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3e%3cpath d='M22 11.08V12a10 10 0 1 1-5.93-9.14'%3e%3c/path%3e%3cpolyline points='22 4 12 14.01 9 11.01'%3e%3c/polyline%3e%3c/svg%3e")}
.alert-error{background:var(--c-danger-bg);color:var(--c-danger-dark);border-color:#f5c2c2}
.alert-error::before{background-image:url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23742a2a' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3e%3ccircle cx='12' cy='12' r='10'%3e%3c/circle%3e%3cline x1='15' y1='9' x2='9' y2='15'%3e%3c/line%3e%3cline x1='9' y1='9' x2='15' y2='15'%3e%3c/line%3e%3c/svg%3e")}
.alert-warning{background:var(--c-warning-bg);color:var(--c-warning-dark);border-color:#f3dfa8}
.alert-warning::before{background-image:url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23975a16' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3e%3cpath d='M10.29 3.86L1.82 18a2 2 0 0 0 1.71 3h16.94a2 2 0 0 0 1.71-3L13.71 3.86a2 2 0 0 0-3.42 0z'%3e%3c/path%3e%3cline x1='12' y1='9' x2='12' y2='13'%3e%3c/line%3e%3cline x1='12' y1='17' x2='12.01' y2='17'%3e%3c/line%3e%3c/svg%3e")}
.alert-info{background:var(--c-info-bg);color:var(--c-info-dark);border-color:#bed6f0}
.alert-info::before{background-image:url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%232c5282' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3e%3ccircle cx='12' cy='12' r='10'%3e%3c/circle%3e%3cline x1='12' y1='16' x2='12' y2='12'%3e%3c/line%3e%3cline x1='12' y1='8' x2='12.01' y2='8'%3e%3c/line%3e%3c/svg%3e")}
.flash-container{margin-bottom:16px;animation:slideDown .3s var(--ease-smooth)}
@keyframes slideDown{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:translateY(0)}}

/* 空状态 */
.empty{
  text-align:center;
  padding:50px 24px;
  color:var(--c-text-muted);
}
.empty .big{
  font-size:48px;
  opacity:.25;
  margin-bottom:14px;
  line-height:1;
}
.empty p{font-size:13.5px;margin-top:4px}

/* ===== 登录页 ===== */
.login-page{
  min-height:100vh;
  display:flex;align-items:center;justify-content:center;
  background:
    radial-gradient(ellipse at 20% 20%,rgba(79,143,199,.15) 0%,transparent 50%),
    radial-gradient(ellipse at 80% 80%,rgba(44,82,130,.2) 0%,transparent 50%),
    linear-gradient(135deg,var(--c-primary-darker) 0%,var(--c-primary-dark) 40%,var(--c-primary) 100%);
  padding:24px;
  position:relative;
  overflow:hidden;
}
.login-page::before{
  content:'';
  position:absolute;
  width:600px;height:600px;
  top:-300px;right:-200px;
  background:radial-gradient(circle,rgba(79,143,199,.12) 0%,transparent 70%);
  border-radius:50%;
}
.login-page::after{
  content:'';
  position:absolute;
  width:500px;height:500px;
  bottom:-250px;left:-150px;
  background:radial-gradient(circle,rgba(44,82,130,.15) 0%,transparent 70%);
  border-radius:50%;
}
.login-card{
  background:#fff;
  border-radius:var(--radius-xl);
  box-shadow:0 24px 60px rgba(0,0,0,.28),0 4px 12px rgba(0,0,0,.12);
  width:100%;max-width:420px;
  padding:40px 38px;
  position:relative;
  z-index:1;
  animation:loginIn .4s var(--ease-smooth);
}
@keyframes loginIn{
  from{opacity:0;transform:translateY(16px) scale(.98)}
  to{opacity:1;transform:translateY(0) scale(1)}
}
.login-card .login-logo{text-align:center;margin-bottom:8px}
.login-card .login-logo .badge{
  width:60px;height:60px;
  border-radius:14px;
  background:linear-gradient(135deg,var(--c-primary) 0%,var(--c-primary-light) 100%);
  color:#fff;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:26px;font-weight:700;
  margin-bottom:14px;
  box-shadow:0 8px 24px rgba(30,58,95,.35);
  position:relative;
}
.login-card .login-logo .badge::after{
  content:'';
  position:absolute;
  inset:-3px;
  border-radius:16px;
  background:linear-gradient(135deg,rgba(79,143,199,.4),transparent);
  z-index:-1;
  filter:blur(8px);
}
.login-card h2{
  text-align:center;
  font-size:18.5px;
  color:var(--c-primary-dark);
  margin-bottom:3px;
  font-weight:700;
  letter-spacing:.3px;
}
.login-card .subtitle{
  text-align:center;
  font-size:12.5px;
  color:var(--c-text-muted);
  margin-bottom:28px;
  letter-spacing:.2px;
}
.login-card .form-group label{font-size:12.5px;color:var(--c-gray-600);margin-bottom:7px;font-weight:500}
.login-card .form-group .input{padding:10px 14px;font-size:14px;border-radius:var(--radius)}
.login-card .btn-primary{
  width:100%;justify-content:center;
  padding:11px;font-size:14.5px;
  font-weight:600;
  letter-spacing:2px;
  margin-top:8px;
  border-radius:var(--radius);
  box-shadow:0 4px 14px rgba(30,58,95,.25);
}
.login-card .btn-primary:hover{box-shadow:0 6px 20px rgba(30,58,95,.35)}
.login-footer{
  text-align:center;
  margin-top:22px;
  font-size:11.5px;
  color:var(--c-text-muted);
  padding-top:18px;
  border-top:1px solid var(--c-border-light);
}

/* ===== 杂项工具类 ===== */
.text-muted{color:var(--c-text-muted)}
.text-light{color:var(--c-text-light)}
.text-danger{color:var(--c-danger)}
.text-danger-dark{color:var(--c-danger-dark)}
.text-success{color:var(--c-success)}
.text-success-dark{color:var(--c-success-dark)}
.text-warning{color:var(--c-warning)}
.text-warning-dark{color:var(--c-warning-dark)}
.text-primary{color:var(--c-primary)}
.text-primary-dark{color:var(--c-primary-dark)}
.text-info{color:var(--c-info)}
.font-bold{font-weight:600}
.font-mono{font-family:Consolas,"SF Mono",Monaco,monospace}
.mb-0{margin-bottom:0}.mb-1{margin-bottom:8px}.mb-2{margin-bottom:16px}.mb-3{margin-bottom:22px}
.mt-1{margin-top:8px}.mt-2{margin-top:16px}.mt-3{margin-top:22px}
.flex{display:flex}.gap-2{gap:8px}.gap-3{gap:12px}.gap-4{gap:16px}
.items-center{align-items:center}.justify-between{justify-content:space-between}
.justify-center{justify-content:center}
.w-full{width:100%}.text-right{text-align:right}.text-center{text-align:center}
.nowrap{white-space:nowrap}
.block{display:block}.inline-block{display:inline-block}.hidden{display:none}

/* 明细行表格（入库/出库录入） */
.item-table th{background:var(--c-gray-50);font-size:12.5px;color:var(--c-gray-600)}
.item-table .qty-cell{width:96px}
.item-table .price-cell{width:128px}
.item-table .amt-cell{width:140px}
.item-table .action-cell{width:64px;text-align:center}
.remove-row{
  color:var(--c-gray-400);
  cursor:pointer;
  font-size:16px;
  width:28px;height:28px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:var(--radius-sm);
  transition:var(--transition-fast);
}
.remove-row:hover{color:var(--c-danger);background:var(--c-danger-bg)}

/* 进度条 */
.progress{
  height:8px;
  background:var(--c-gray-100);
  border-radius:var(--radius-full);
  overflow:hidden;
  box-shadow:inset 0 1px 2px rgba(0,0,0,.05);
}
.progress>span{
  display:block;
  height:100%;
  background:linear-gradient(90deg,var(--c-primary),var(--c-accent));
  border-radius:var(--radius-full);
  transition:width .4s var(--ease-smooth);
  position:relative;
}
.progress>span::after{
  content:'';
  position:absolute;inset:0;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.25),transparent);
  animation:progressShine 2s linear infinite;
}
@keyframes progressShine{from{transform:translateX(-100%)}to{transform:translateX(100%)}}

/* 响应式 */
.grid-2col{display:grid;gap:18px}
@media (min-width:901px){.grid-2col{grid-template-columns:2fr 1fr}}

@media (max-width:900px){
  .sidebar{transform:translateX(-100%);width:240px;box-shadow:8px 0 24px rgba(0,0,0,.15)}
  .sidebar.open{transform:translateX(0)}
  .main{margin-left:0}
  .form-grid{grid-template-columns:1fr}
  .menu-toggle{display:inline-flex !important}
  .content{padding:18px 16px}
  .topbar{padding:0 16px;height:54px}
  .grid-2col{grid-template-columns:1fr !important}
  .toolbar{padding:12px}
}
.menu-toggle{
  display:none;
  background:var(--c-gray-50);
  border:1px solid var(--c-border-light);
  color:var(--c-primary);
  font-size:18px;
  cursor:pointer;
  margin-right:12px;
  width:36px;height:36px;
  border-radius:var(--radius);
  align-items:center;justify-content:center;
  transition:var(--transition-fast);
}
.menu-toggle:hover{background:var(--c-gray-100);border-color:var(--c-gray-300)}