/* ==========================================================================
   智能电子名片 SAAS — 统一设计系统（管理后台 / 会员中心）
   青岛江山信息技术有限公司
   ========================================================================== */

/* ---------- CSS 变量（暗色默认，亮色由 [data-theme="light"] 切换） ---------- */
:root {
  --bg: #0b1f3a;
  --bg2: #0f172a;
  --bg3: #1e293b;
  --panel: rgba(255, 255, 255, .04);
  --panel-2: rgba(255, 255, 255, .06);
  --line: rgba(255, 255, 255, .08);
  --line-2: rgba(255, 255, 255, .12);
  --text: #e2e8f0;
  --text-2: #cbd5e1;
  --muted: #94a3b8;
  --muted-2: #64748b;

  --accent: #fbbf24;          /* 金 */
  --accent-2: #f59e0b;
  --primary: #22d3ee;         /* 青 */
  --primary-2: #06b6d4;
  --success: #34d399;
  --warning: #fcd34d;
  --danger: #f87171;
  --info: #60a5fa;

  --grad: linear-gradient(120deg, #fbbf24 0%, #22d3ee 100%);
  --grad-soft: linear-gradient(135deg, rgba(251, 191, 36, .12), rgba(34, 211, 238, .08));

  --radius: 14px;
  --radius-sm: 8px;
  --radius-lg: 18px;

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, .15);
  --shadow:    0 8px 24px rgba(0, 0, 0, .25);
  --shadow-lg: 0 20px 50px rgba(0, 0, 0, .35);

  --ease: cubic-bezier(.4, 0, .2, 1);
  --t-fast: .15s;
  --t: .25s;

  --font: 'PingFang SC', 'Microsoft YaHei', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', Consolas, monospace;
}

[data-theme="light"] {
  --bg: #f1f5f9;
  --bg2: #ffffff;
  --bg3: #f8fafc;
  --panel: #ffffff;
  --panel-2: #f8fafc;
  --line: rgba(0, 0, 0, .08);
  --line-2: rgba(0, 0, 0, .14);
  --text: #0f172a;
  --text-2: #334155;
  --muted: #64748b;
  --muted-2: #94a3b8;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; }
body {
  background: var(--bg2);
  color: var(--text);
  font-family: var(--font);
  font-size: 14px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  transition: background var(--t) var(--ease), color var(--t) var(--ease);
}
a { color: inherit; text-decoration: none; transition: color var(--t-fast) var(--ease); }
a:hover { color: var(--accent); }
button { font-family: inherit; cursor: pointer; border: 0; }
img { max-width: 100%; display: block; }
input, select, textarea, button { font-family: inherit; }
ul, ol { list-style: none; }

/* ---------- 滚动条 ---------- */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--line-2); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--muted-2); }

/* ---------- 渐变文字 ---------- */
.grad-text {
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  -webkit-text-fill-color: transparent;
}

/* ---------- 顶栏 ---------- */
.top {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--line);
  padding: 0 24px;
  height: 60px;
  display: flex; align-items: center; gap: 20px;
  transition: background var(--t) var(--ease);
}
.top .brand {
  font-size: 18px; font-weight: 800;
  background: var(--grad);
  -webkit-background-clip: text; background-clip: text; color: transparent;
  letter-spacing: 1px;
  display: flex; align-items: center; gap: 8px;
}
.top .brand img { width: 28px; height: 28px; }
.top .nav { display: flex; gap: 4px; flex: 1; }
.top .nav a {
  padding: 8px 14px; border-radius: 10px;
  color: var(--muted); font-size: 14px;
  transition: all var(--t-fast) var(--ease);
}
.top .nav a:hover { background: var(--panel-2); color: var(--text); }
.top .nav a.active { background: rgba(251, 191, 36, .12); color: var(--accent); }
.top .right { display: flex; align-items: center; gap: 10px; }
.top .me {
  display: flex; align-items: center; gap: 8px;
  padding: 6px 14px; border-radius: 999px;
  background: var(--panel-2); font-size: 13px;
}
.top .me .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--success); box-shadow: 0 0 8px var(--success); }

/* ---------- 主区 ---------- */
.shell { display: grid; grid-template-columns: 220px 1fr; min-height: calc(100vh - 60px); }
.side {
  background: color-mix(in srgb, var(--bg) 60%, transparent);
  border-right: 1px solid var(--line);
  padding: 20px 12px;
  position: sticky; top: 60px;
  height: calc(100vh - 60px);
  overflow-y: auto;
}
.side .group { margin-bottom: 18px; }
.side .gt {
  font-size: 11px; color: var(--muted);
  padding: 8px 12px; text-transform: uppercase; letter-spacing: 1px;
}
.side a {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 12px; border-radius: 10px;
  color: var(--muted); font-size: 13px;
  margin-bottom: 2px;
  transition: all var(--t-fast) var(--ease);
  position: relative;
}
.side a:hover { background: var(--panel-2); color: var(--text); }
.side a.active {
  background: rgba(251, 191, 36, .12); color: var(--accent);
}
.side a.active::before {
  content: ''; position: absolute; left: 0; top: 8px; bottom: 8px;
  width: 3px; border-radius: 2px; background: var(--accent);
}
.side a .i { width: 20px; text-align: center; font-size: 14px; }
.main { padding: 24px 28px; overflow: auto; }

/* ---------- 页面头部 ---------- */
.page-head {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 22px; flex-wrap: wrap; gap: 14px;
}
.page-head h1 { font-size: 22px; font-weight: 700; }
.page-head .sub { color: var(--muted); font-size: 12px; margin-top: 4px; }
.page-head .crumbs { font-size: 12px; color: var(--muted); margin-bottom: 6px; }
.page-head .crumbs a:hover { color: var(--accent); }

/* ---------- 卡片 / 面板 ---------- */
.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 16px;
  transition: all var(--t) var(--ease);
}
.card:hover { border-color: var(--line-2); }
.card h3 {
  font-size: 15px; margin-bottom: 14px;
  display: flex; align-items: center; gap: 8px;
  font-weight: 600;
}
.card h3::before {
  content: ''; width: 4px; height: 14px;
  background: var(--grad); border-radius: 2px;
}
.card h3 .more { margin-left: auto; font-size: 12px; color: var(--muted); font-weight: normal; }
.card-flat { padding: 0; overflow: hidden; }
.card-flat > .card-head { padding: 16px 20px; border-bottom: 1px solid var(--line); display: flex; align-items: center; }
.card-flat > .card-body { padding: 16px 20px; }

/* ---------- 网格 / 统计 ---------- */
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 14px; }
.grid-2 { display: grid; grid-template-columns: 2fr 1fr; gap: 14px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.stat {
  padding: 18px; border-radius: var(--radius);
  background: var(--grad-soft);
  border: 1px solid var(--line);
  position: relative; overflow: hidden;
  transition: all var(--t) var(--ease);
}
.stat:hover { transform: translateY(-2px); box-shadow: var(--shadow); }
.stat::after {
  content: ''; position: absolute; right: -20px; top: -20px;
  width: 80px; height: 80px; border-radius: 50%;
  background: radial-gradient(circle, rgba(251, 191, 36, .2), transparent 70%);
}
.stat .l { font-size: 12px; color: var(--muted); position: relative; z-index: 1; }
.stat .v {
  font-size: 28px; font-weight: 800; margin-top: 6px;
  background: var(--grad);
  -webkit-background-clip: text; background-clip: text; color: transparent;
  position: relative; z-index: 1;
}
.stat .trend { font-size: 11px; color: var(--success); margin-top: 4px; position: relative; z-index: 1; }
.stat .trend.down { color: var(--danger); }
.stat .ico {
  position: absolute; right: 16px; top: 50%; transform: translateY(-50%);
  font-size: 32px; opacity: .25; z-index: 0;
}

/* ---------- 表格 ---------- */
table { width: 100%; border-collapse: collapse; }
th, td { padding: 12px 14px; border-bottom: 1px solid var(--line); text-align: left; font-size: 13px; }
th {
  color: var(--muted); font-weight: 600; font-size: 11px;
  text-transform: uppercase; letter-spacing: .5px;
  background: var(--panel-2);
}
tbody tr { transition: background var(--t-fast) var(--ease); }
tbody tr:hover { background: var(--panel-2); }
table.compact th, table.compact td { padding: 8px 10px; }
table .actions { display: flex; gap: 6px; }
table .empty { padding: 60px 20px; text-align: center; color: var(--muted); }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 6px; justify-content: center;
  padding: 8px 16px; border-radius: var(--radius-sm);
  background: var(--panel-2); color: var(--text);
  font-size: 13px; font-weight: 500;
  border: 1px solid var(--line);
  transition: all var(--t-fast) var(--ease);
  white-space: nowrap;
}
.btn:hover { background: var(--line-2); transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn:disabled { opacity: .5; cursor: not-allowed; }
.btn.sm { padding: 4px 10px; font-size: 12px; }
.btn.lg { padding: 12px 24px; font-size: 15px; }
.btn.block { width: 100%; }
.btn.primary {
  background: var(--grad); color: #0b1f3a; font-weight: 700; border: 0;
}
.btn.primary:hover { filter: brightness(1.08); box-shadow: 0 4px 14px rgba(251, 191, 36, .35); }
.btn.danger { background: rgba(248, 113, 113, .15); color: var(--danger); border-color: rgba(248, 113, 113, .3); }
.btn.danger:hover { background: rgba(248, 113, 113, .25); }
.btn.success { background: rgba(52, 211, 153, .15); color: var(--success); border-color: rgba(52, 211, 153, .3); }
.btn.warn { background: rgba(252, 211, 77, .15); color: var(--warning); border-color: rgba(252, 211, 77, .3); }
.btn.ghost { background: transparent; border-color: var(--line-2); }
.btn.icon { padding: 8px; width: 34px; height: 34px; }
.btn-group { display: inline-flex; gap: 6px; }

/* ---------- 表单 ---------- */
.field { margin-bottom: 14px; }
.field label { display: block; font-size: 12px; color: var(--muted); margin-bottom: 6px; font-weight: 500; }
.field input, .field select, .field textarea {
  width: 100%; padding: 10px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line-2);
  background: var(--panel); color: var(--text);
  font-size: 13px;
  transition: all var(--t-fast) var(--ease);
}
.field textarea { min-height: 80px; resize: vertical; font-family: inherit; }
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(251, 191, 36, .12);
}
.field input::placeholder, .field textarea::placeholder { color: var(--muted-2); }
.field .hint { font-size: 11px; color: var(--muted); margin-top: 4px; }
.field.row { display: flex; gap: 10px; }
.field.row > * { flex: 1; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }

/* ---------- Tag / Badge ---------- */
.tag {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 2px 10px; border-radius: 999px;
  font-size: 11px; font-weight: 500;
  background: var(--panel-2); color: var(--muted);
  border: 1px solid var(--line);
}
.tag.hot    { background: rgba(248, 113, 113, .15); color: var(--danger);   border-color: rgba(248, 113, 113, .3); }
.tag.ok     { background: rgba(52, 211, 153, .15); color: var(--success);   border-color: rgba(52, 211, 153, .3); }
.tag.warn   { background: rgba(252, 211, 77, .15); color: var(--warning);   border-color: rgba(252, 211, 77, .3); }
.tag.info   { background: rgba(96, 165, 250, .15); color: var(--info);      border-color: rgba(96, 165, 250, .3); }
.tag.muted  { background: rgba(148, 163, 184, .15); color: var(--muted);    border-color: rgba(148, 163, 184, .3); }
.tag-dot { width: 6px; height: 6px; border-radius: 50%; background: currentColor; }

/* ---------- Alert ---------- */
.alert {
  padding: 12px 16px; border-radius: var(--radius-sm);
  border: 1px solid; font-size: 13px;
  display: flex; align-items: flex-start; gap: 10px;
}
.alert .a-ico { font-size: 18px; flex-shrink: 0; }
.alert.success { background: rgba(52, 211, 153, .1); border-color: rgba(52, 211, 153, .3); color: var(--success); }
.alert.danger  { background: rgba(248, 113, 113, .1); border-color: rgba(248, 113, 113, .3); color: var(--danger); }
.alert.warn    { background: rgba(252, 211, 77, .1); border-color: rgba(252, 211, 77, .3); color: var(--warning); }
.alert.info    { background: rgba(96, 165, 250, .1); border-color: rgba(96, 165, 250, .3); color: var(--info); }

/* ---------- Flash 提示 ---------- */
.flash { max-width: 520px; margin: 0 auto 14px; padding: 10px 16px; border-radius: var(--radius-sm); font-size: 13px; }
.flash.success { background: rgba(52, 211, 153, .12); color: #6ee7b7; border: 1px solid rgba(52, 211, 153, .3); }
.flash.error   { background: rgba(248, 113, 113, .12); color: #fca5a5; border: 1px solid rgba(248, 113, 113, .3); }

/* ---------- 空状态 ---------- */
.empty {
  padding: 60px 20px; text-align: center; color: var(--muted);
}
.empty .ico {
  font-size: 56px; opacity: .35; margin-bottom: 14px;
  display: inline-block;
  background: var(--grad);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.empty h4 { color: var(--text); font-size: 16px; margin-bottom: 6px; }
.empty p { font-size: 13px; margin-bottom: 16px; }

/* ---------- 加载 / 骨架 ---------- */
.spinner {
  width: 22px; height: 22px;
  border: 2.5px solid var(--line);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin .8s linear infinite;
  display: inline-block;
}
@keyframes spin { to { transform: rotate(360deg); } }
.loading-overlay {
  position: fixed; inset: 0;
  background: rgba(11, 31, 58, .6);
  backdrop-filter: blur(8px);
  display: none; align-items: center; justify-content: center;
  z-index: 999;
}
.loading-overlay.show { display: flex; }
.loading-overlay .spinner { width: 40px; height: 40px; border-width: 3px; }

.skeleton {
  background: linear-gradient(90deg, var(--panel) 25%, var(--panel-2) 50%, var(--panel) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-sm);
}
@keyframes shimmer { 0% { background-position: 200% 0; } 100% { background-position: -200% 0; } }

/* ---------- 登录页 ---------- */
.login-wrap {
  display: flex; align-items: center; justify-content: center;
  min-height: calc(100vh - 60px); padding: 24px;
}
.login-card {
  width: 400px; max-width: 100%;
  padding: 36px 32px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(20px);
  box-shadow: var(--shadow);
}
.login-card h1 {
  font-size: 22px;
  background: var(--grad);
  -webkit-background-clip: text; background-clip: text; color: transparent;
  text-align: center; margin-bottom: 6px;
  display: flex; align-items: center; justify-content: center; gap: 8px;
}
.login-card h1 img { width: 32px; height: 32px; }
.login-card .sub { text-align: center; color: var(--muted); font-size: 13px; margin-bottom: 28px; }
.login-card .submit {
  width: 100%; padding: 14px; border-radius: 10px;
  background: var(--grad); color: #0b1f3a;
  font-weight: 700; font-size: 15px; margin-top: 6px;
  transition: all var(--t-fast) var(--ease);
}
.login-card .submit:hover { filter: brightness(1.08); transform: translateY(-1px); box-shadow: 0 6px 16px rgba(251, 191, 36, .3); }
.login-card .submit:disabled { opacity: .6; cursor: not-allowed; transform: none; }
.login-card .tip {
  margin-top: 14px; padding: 10px 12px;
  background: rgba(34, 211, 238, .08);
  border: 1px solid rgba(34, 211, 238, .25);
  border-radius: var(--radius-sm);
  color: var(--primary); font-size: 12px; text-align: center;
}

/* ---------- 主题切换按钮 ---------- */
.theme-toggle {
  background: transparent; border: 1px solid var(--line-2);
  width: 34px; height: 34px; border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 16px; color: var(--muted);
  transition: all var(--t-fast) var(--ease);
}
.theme-toggle:hover { background: var(--panel-2); color: var(--accent); }

/* ---------- 移动端适配 ---------- */
@media (max-width: 900px) {
  .shell { grid-template-columns: 1fr; }
  .side { display: none; position: fixed; left: 0; right: 0; top: 60px; bottom: 0; z-index: 100; height: auto; background: var(--bg); }
  .side.show { display: block; }
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .main { padding: 16px; }
  .field-row { grid-template-columns: 1fr; }
  .top .nav { display: none; }
  .menu-toggle { display: inline-flex !important; }
}
.menu-toggle {
  display: none;
  background: transparent; border: 1px solid var(--line-2);
  width: 34px; height: 34px; border-radius: 10px;
  align-items: center; justify-content: center;
  font-size: 18px; color: var(--muted);
}

/* ---------- 工具类 ---------- */
.row    { display: flex; gap: 10px; align-items: center; }
.row.wrap { flex-wrap: wrap; }
.row.between { justify-content: space-between; }
.col    { display: flex; flex-direction: column; gap: 10px; }
.center { display: flex; align-items: center; justify-content: center; }
.gap-2  { gap: 8px; } .gap-3 { gap: 12px; } .gap-4 { gap: 16px; }
.mt-2   { margin-top: 8px; } .mt-4 { margin-top: 16px; } .mt-6 { margin-top: 24px; }
.mb-2   { margin-bottom: 8px; } .mb-4 { margin-bottom: 16px; }
.text-muted { color: var(--muted); }
.text-sm    { font-size: 12px; }
.text-lg    { font-size: 16px; }
.text-bold  { font-weight: 700; }
.hide-mobile { display: initial; }
@media (max-width: 900px) { .hide-mobile { display: none; } }