/* ============================================================
   打假人信息管理系统 - 设计系统
   双主题令牌：默认浅色（工作台 / 管理后台）
             theme-dark 深色（门户 / 登录）
   ============================================================ */
* { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  color-scheme: light;
  /* 品牌色阶 */
  --brand-50:  #eef2ff;
  --brand-100: #dde5ff;
  --brand-200: #c2cfff;
  --brand-300: #9cb4ff;
  --brand-400: #6f8dff;
  --brand-500: #4d6fff;
  --brand-600: #2b53f0;
  --brand-700: #1f40c4;
  --brand-800: #1c3699;
  --brand-900: #0f1e5c;

  /* 状态色 */
  --danger:  #dc2b3c;  --danger-bg:  #fdecee;
  --success: #128a54;  --success-bg: #e3f6ec;
  --warning: #b96a00;  --warning-bg: #fdf1dd;
  --info:    #0e6fb8;  --info-bg:    #e5f2fc;

  /* 浅色界面令牌（默认） */
  --bg:            #f4f5f9;
  --surface:       #ffffff;
  --surface-2:     #f8f9fc;
  --surface-3:     #eef0f6;
  --border:        #e4e7f0;
  --border-strong: #d2d7e4;
  --text-1:        #141a2a;
  --text-2:        #5a6478;
  --text-3:        #98a1b3;
  --accent:        var(--brand-600);
  --accent-hover:  var(--brand-700);
  --accent-soft:   var(--brand-50);
  --accent-border: var(--brand-200);
  --ring:          rgba(43, 83, 240, .14);

  /* 深色界面令牌（body.theme-dark 激活） */
  --dk-bg:            #070b16;
  --dk-surface:       rgba(15, 22, 40, .92);
  --dk-surface-2:     rgba(255, 255, 255, .035);
  --dk-surface-3:     rgba(255, 255, 255, .06);
  --dk-border:        rgba(255, 255, 255, .08);
  --dk-border-strong: rgba(255, 255, 255, .16);
  --dk-text-1:        #eef1fa;
  --dk-text-2:        #9aa6c0;
  --dk-text-3:        #5d6a87;
  --dk-accent:        #5b8cff;
  --dk-accent-hover:  #7ba4ff;
  --dk-ring:          rgba(91, 140, 255, .22);

  /* 形状与阴影 */
  --radius-sm: 8px;
  --radius:    12px;
  --radius-lg: 16px;
  --shadow:    0 1px 2px rgba(16, 24, 40, .05), 0 1px 6px rgba(16, 24, 40, .05);
  --shadow-lg: 0 12px 40px rgba(16, 24, 40, .14);
  --dk-shadow-lg: 0 20px 60px rgba(0, 0, 0, .55);

  --font: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", "Helvetica Neue", sans-serif;
}

/* ---------- 深色主题激活 ---------- */
body.theme-dark {
  color-scheme: dark;
  --bg:            var(--dk-bg);
  --surface:       var(--dk-surface);
  --surface-2:     var(--dk-surface-2);
  --surface-3:     var(--dk-surface-3);
  --border:        var(--dk-border);
  --border-strong: var(--dk-border-strong);
  --text-1:        var(--dk-text-1);
  --text-2:        var(--dk-text-2);
  --text-3:        var(--dk-text-3);
  --accent:        var(--dk-accent);
  --accent-hover:  var(--dk-accent-hover);
  --accent-soft:   rgba(91, 140, 255, .14);
  --accent-border: rgba(91, 140, 255, .38);
  --ring:          var(--dk-ring);
  --danger:  #ff6b7a;  --danger-bg:  rgba(255, 107, 122, .14);
  --success: #3ddc97;  --success-bg: rgba(61, 220, 151, .13);
  --warning: #f5b04d;  --warning-bg: rgba(245, 176, 77, .13);
  --info:    #6db2ff;  --info-bg:    rgba(109, 178, 255, .13);
}

html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text-1);
  font-size: 14px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-decoration: none; }
::selection { background: var(--accent); color: #fff; }

/* 数字等宽（表格金额 / 统计） */
.num, .stat-num { font-variant-numeric: tabular-nums; }

/* ============================================================
   顶栏（工作台 / 后台通用）
   ============================================================ */
.topbar {
  height: 60px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 28px;
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(14px);
}
.topbar .brand {
  display: flex;
  align-items: center;
  gap: 11px;
  font-size: 16px;
  font-weight: 700;
  color: var(--text-1);
  letter-spacing: .3px;
}
.brand-mark {
  width: 30px; height: 30px;
  border-radius: 9px;
  background: linear-gradient(135deg, var(--brand-500), var(--brand-700));
  position: relative;
  flex-shrink: 0;
  box-shadow: 0 3px 10px rgba(43, 83, 240, .35);
}
.brand-mark::before {
  content: "";
  position: absolute;
  inset: 8px 8px 12px;
  border: 2px solid rgba(255, 255, 255, .92);
  border-top: none;
  border-radius: 2px 2px 6px 6px;
}
.brand-mark::after {
  content: "";
  position: absolute;
  top: 7px; left: 50%;
  width: 10px; height: 5px;
  transform: translateX(-50%);
  border: 2px solid rgba(255, 255, 255, .92);
  border-bottom: none;
  border-radius: 6px 6px 0 0;
}
.topbar .brand span {
  font-weight: 400;
  font-size: 12px;
  color: var(--text-3);
  margin-left: 2px;
  letter-spacing: 1px;
}
.topbar .user-info { display: flex; align-items: center; gap: 14px; font-size: 13px; color: var(--text-2); }
.topbar .user-info .badge { background: var(--accent-soft); color: var(--accent); border: 1px solid var(--accent-border); }
.topbar .user-info a { color: var(--text-2); font-size: 13px; transition: color .15s; }
.topbar .user-info a:hover { color: var(--accent); }

/* ============================================================
   后台布局：侧边栏 + 内容区
   ============================================================ */
.layout { display: flex; min-height: calc(100vh - 60px); }
.sidebar {
  width: 208px;
  background: var(--surface);
  border-right: 1px solid var(--border);
  padding: 18px 12px;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.sidebar .side-label {
  font-size: 11px;
  color: var(--text-3);
  letter-spacing: 2px;
  padding: 6px 12px 10px;
}
.sidebar a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  color: var(--text-2);
  font-size: 14px;
  border-radius: var(--radius-sm);
  transition: all .15s;
  position: relative;
}
.sidebar a:hover { background: var(--surface-2); color: var(--text-1); }
.sidebar a.active {
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 600;
}
.sidebar a .dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--border-strong);
  flex-shrink: 0;
  transition: background .15s;
}
.sidebar a.active .dot { background: var(--accent); box-shadow: 0 0 0 3px var(--ring); }
.content { flex: 1; padding: 28px 32px; min-width: 0; }

/* 页头 */
.page-head { margin-bottom: 22px; }
.page-head h1 { font-size: 21px; font-weight: 700; letter-spacing: .2px; }
.page-head .sub { font-size: 13px; color: var(--text-3); margin-top: 4px; }

/* ============================================================
   卡片
   ============================================================ */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px 24px;
  margin-bottom: 18px;
  box-shadow: var(--shadow);
}
.card-title {
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 16px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}
.card-title .sub { font-size: 12px; color: var(--text-3); font-weight: 400; }

/* ============================================================
   统计卡片
   ============================================================ */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(172px, 1fr));
  gap: 14px;
  margin-bottom: 18px;
}
.stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 18px 20px;
  position: relative;
  overflow: hidden;
  transition: transform .18s, border-color .18s;
}
.stat-card:hover { transform: translateY(-2px); border-color: var(--accent-border); }
.stat-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 2px;
  background: var(--accent);
  opacity: .8;
}
.stat-card.warn::before  { background: var(--warning); }
.stat-card.green::before { background: var(--success); }
.stat-card.red::before   { background: var(--danger); }
.stat-card .num {
  font-size: 27px;
  font-weight: 750;
  letter-spacing: -.5px;
  font-variant-numeric: tabular-nums;
}
.stat-card.warn .num  { color: var(--warning); }
.stat-card.green .num { color: var(--success); }
.stat-card.red .num   { color: var(--danger); }
.stat-card .label { color: var(--text-3); font-size: 12px; margin-top: 5px; letter-spacing: .4px; }

/* ============================================================
   表单
   ============================================================ */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px 20px; }
.form-item { display: flex; flex-direction: column; gap: 7px; }
.form-item.full { grid-column: 1 / -1; }
.form-item label { font-size: 13px; color: var(--text-2); font-weight: 600; }
.form-item label .req { color: var(--danger); margin-left: 3px; }
.form-item .hint { font-size: 12px; color: var(--text-3); line-height: 1.5; }

input[type=text], input[type=password], input[type=tel], input[type=number], select, textarea {
  width: 100%;
  padding: 9px 13px;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-family: inherit;
  color: var(--text-1);
  background: var(--surface);
  transition: border-color .15s, box-shadow .15s;
}
select {
  cursor: pointer;
  color-scheme: light;
}
select option, select optgroup {
  background-color: #ffffff;
  color: #141a2a;
  padding: 8px 12px;
}
body.theme-dark input[type=text], body.theme-dark input[type=password],
body.theme-dark input[type=tel], body.theme-dark input[type=number],
body.theme-dark textarea { background: var(--surface-2); }

body.theme-dark select {
  background: #121a2e;
  color-scheme: dark;
  color: #eef1fa;
}
body.theme-dark select option, body.theme-dark select optgroup {
  background-color: #121a2e;
  color-scheme: dark;
  color: #eef1fa;
}

input::placeholder, textarea::placeholder { color: var(--text-3); }
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--ring);
}
input.invalid, select.invalid { border-color: var(--danger); box-shadow: 0 0 0 3px rgba(220, 43, 60, .12); }
.field-error { color: var(--danger); font-size: 12px; }

/* 自定义下拉选择器组件（防原生系统弹出层白底白字，且样式更美观） */
.custom-select-box {
  position: relative;
  width: 100%;
  user-select: none;
}
.custom-select-box select.enhanced-hidden {
  position: absolute !important;
  opacity: 0 !important;
  pointer-events: none !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: 0 !important;
  border: 0 !important;
}
.custom-select-trigger {
  width: 100%;
  padding: 9px 13px;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-family: inherit;
  color: var(--text-1);
  background: var(--surface);
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  transition: border-color .15s, box-shadow .15s, background-color .15s;
  text-align: left;
  outline: none;
}
body.theme-dark .custom-select-trigger {
  background: #121a2e;
  border-color: rgba(255, 255, 255, .16);
  color: #eef1fa;
}
.custom-select-box.open .custom-select-trigger,
.custom-select-trigger:focus-visible {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--ring);
}
.custom-select-box.invalid .custom-select-trigger {
  border-color: var(--danger);
  box-shadow: 0 0 0 3px rgba(220, 43, 60, .12);
}
.custom-select-label {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  flex: 1;
}
.custom-select-label.placeholder {
  color: var(--text-3);
}
.custom-select-arrow {
  width: 7px;
  height: 7px;
  border-right: 2px solid var(--text-2);
  border-bottom: 2px solid var(--text-2);
  transform: rotate(45deg);
  transition: transform .2s ease;
  flex-shrink: 0;
  margin-left: 10px;
}
.custom-select-box.open .custom-select-arrow {
  transform: rotate(-135deg);
}
.custom-select-menu {
  position: absolute;
  top: calc(100% + 5px);
  left: 0;
  right: 0;
  background: var(--surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  box-shadow: 0 12px 32px rgba(16, 24, 40, .18);
  max-height: 250px;
  overflow-y: auto;
  z-index: 1050;
  display: none;
  padding: 6px;
  backdrop-filter: blur(12px);
}
body.theme-dark .custom-select-menu {
  background: #121a2e;
  border-color: rgba(255, 255, 255, .16);
  box-shadow: 0 16px 40px rgba(0, 0, 0, .6);
}
.custom-select-box.open .custom-select-menu {
  display: block;
  animation: selectMenuDrop .18s cubic-bezier(0.16, 1, 0.3, 1);
}
@keyframes selectMenuDrop {
  from { opacity: 0; transform: translateY(-5px); }
  to { opacity: 1; transform: translateY(0); }
}
.custom-select-option {
  padding: 9px 12px;
  border-radius: 6px;
  font-size: 14px;
  color: var(--text-1);
  cursor: pointer;
  transition: background .12s, color .12s;
  display: flex;
  align-items: center;
  justify-content: space-between;
  line-height: 1.4;
}
.custom-select-option:hover {
  background: var(--accent-soft);
  color: var(--accent);
}
.custom-select-option.selected {
  background: var(--accent);
  color: #ffffff !important;
  font-weight: 600;
}
.custom-select-option.disabled {
  opacity: .5;
  cursor: not-allowed;
}

.radio-group { display: flex; gap: 22px; align-items: center; padding: 5px 0; flex-wrap: wrap; }
.radio-group label {
  display: flex; align-items: center; gap: 7px;
  font-weight: 400; cursor: pointer; color: var(--text-1); font-size: 14px;
}
input[type=radio], input[type=checkbox] { accent-color: var(--accent); width: 15px; height: 15px; cursor: pointer; }

/* ============================================================
   按钮
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  padding: 9px 22px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  font-family: inherit;
  transition: all .16s;
  white-space: nowrap;
}
.btn:active { transform: scale(.985); }
.btn:disabled { opacity: .55; cursor: not-allowed; }
.btn-primary { background: var(--accent); color: #fff; box-shadow: 0 2px 10px rgba(43, 83, 240, .28); }
.btn-primary:hover:not(:disabled) { background: var(--accent-hover); transform: translateY(-1px); box-shadow: 0 5px 16px rgba(43, 83, 240, .32); }
.btn-success { background: var(--success); color: #fff; }
.btn-success:hover:not(:disabled) { filter: brightness(1.08); transform: translateY(-1px); }
.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover:not(:disabled) { filter: brightness(1.08); transform: translateY(-1px); }
.btn-outline { background: transparent; color: var(--text-2); border-color: var(--border-strong); }
.btn-outline:hover:not(:disabled) { color: var(--accent); border-color: var(--accent); background: var(--accent-soft); }
.btn-ghost { background: transparent; color: var(--text-3); }
.btn-ghost:hover:not(:disabled) { color: var(--text-1); background: var(--surface-2); }
.btn-sm { padding: 5px 13px; font-size: 12px; border-radius: 7px; }

/* ============================================================
   表格
   ============================================================ */
.table-wrap { overflow-x: auto; margin: 0 -6px; padding: 0 6px; }
table.table { width: 100%; border-collapse: collapse; font-size: 13px; }
.table th {
  text-align: left;
  color: var(--text-3);
  font-weight: 600;
  font-size: 12px;
  letter-spacing: .5px;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border-strong);
  white-space: nowrap;
}
.table td { padding: 12px; border-bottom: 1px solid var(--border); vertical-align: middle; color: var(--text-1); }
.table tbody tr { transition: background .12s; }
.table tbody tr:hover td { background: var(--surface-2); }
.table td b { font-weight: 650; }
.table .actions { display: flex; gap: 6px; flex-wrap: wrap; }
.table .empty { text-align: center; color: var(--text-3); padding: 46px 0; letter-spacing: 1px; }

/* ============================================================
   徽章
   ============================================================ */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 2px 10px;
  border-radius: 6px;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: .3px;
}
.badge::before { content: ""; width: 5px; height: 5px; border-radius: 50%; background: currentColor; opacity: .9; }
.badge-blue   { background: var(--accent-soft); color: var(--accent); border: 1px solid var(--accent-border); }
.badge-green  { background: var(--success-bg);  color: var(--success);  border: 1px solid transparent; }
.badge-red    { background: var(--danger-bg);   color: var(--danger);   border: 1px solid transparent; }
.badge-yellow { background: var(--warning-bg);  color: var(--warning);  border: 1px solid transparent; }
.badge-gray   { background: var(--surface-3);   color: var(--text-3);   border: 1px solid var(--border); }

/* ============================================================
   选项卡
   ============================================================ */
.tabs { display: flex; gap: 26px; border-bottom: 1px solid var(--border); margin-bottom: 22px; }
.tab {
  padding: 11px 2px;
  cursor: pointer;
  color: var(--text-3);
  font-size: 14px;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  user-select: none;
  transition: color .15s;
  letter-spacing: .3px;
}
.tab:hover { color: var(--text-1); }
.tab.active { color: var(--accent); border-bottom-color: var(--accent); font-weight: 600; }

/* ============================================================
   弹窗
   ============================================================ */
.modal-mask {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(9, 13, 26, .55);
  backdrop-filter: blur(5px);
  z-index: 200;
  padding: 34px 20px;
  overflow-y: auto;
}
.modal-mask.show { display: block; }
.modal {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  max-width: 920px;
  margin: 0 auto;
  box-shadow: var(--dk-shadow-lg);
  animation: modalIn .22s cubic-bezier(.2, .9, .3, 1.1);
}
@keyframes modalIn { from { transform: translateY(14px) scale(.98); opacity: 0; } to { transform: none; opacity: 1; } }
.modal.narrow { max-width: 500px; }
body.theme-dark .modal { background: #0f1628; box-shadow: var(--dk-shadow-lg), 0 0 0 1px rgba(255, 255, 255, .06); }
.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 24px;
  border-bottom: 1px solid var(--border);
  font-size: 15px;
  font-weight: 700;
}
.modal-close {
  cursor: pointer; color: var(--text-3); font-size: 22px; line-height: 1;
  background: none; border: none; padding: 2px 6px; border-radius: 6px;
  transition: all .15s;
}
.modal-close:hover { color: var(--text-1); background: var(--surface-2); }
.modal-body { padding: 22px 24px; max-height: 72vh; overflow-y: auto; }

/* ============================================================
   详情网格 / 时间线
   ============================================================ */
.detail-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px 22px; margin-bottom: 20px; }
.detail-grid .full { grid-column: 1 / -1; }
.detail-item {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
}
.detail-item .k { font-size: 11px; color: var(--text-3); margin-bottom: 3px; letter-spacing: .6px; }
.detail-item .v { font-size: 14px; font-weight: 600; word-break: break-all; }

.timeline { position: relative; padding-left: 24px; }
.timeline::before { content: ""; position: absolute; left: 5px; top: 8px; bottom: 8px; width: 2px; background: var(--border); }
.timeline-item { position: relative; padding: 0 0 18px 14px; }
.timeline-item::before {
  content: "";
  position: absolute;
  left: -23px;
  top: 5px;
  width: 9px; height: 9px;
  border-radius: 50%;
  background: var(--accent);
  border: 2px solid var(--bg);
  box-shadow: 0 0 0 2px var(--accent-border);
}
.timeline-item.update::before { background: var(--warning); box-shadow: 0 0 0 2px var(--warning-bg); }
.timeline-item .t-head { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-bottom: 7px; }
.timeline-item .t-time { color: var(--text-3); font-size: 12px; font-variant-numeric: tabular-nums; }
.timeline-item .t-body {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 15px;
  font-size: 13px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px 16px;
}
.timeline-item .t-body .full { grid-column: 1 / -1; }
.timeline-item .t-body .k { color: var(--text-3); font-size: 12px; }

/* ============================================================
   筛选栏 / 分页
   ============================================================ */
.filter-bar {
  display: flex; gap: 10px; flex-wrap: wrap; align-items: center;
  margin-bottom: 18px; padding-bottom: 18px; border-bottom: 1px solid var(--border);
}
.filter-bar input, .filter-bar select { width: auto; min-width: 150px; }
.pager { display: flex; justify-content: space-between; align-items: center; margin-top: 16px; font-size: 13px; color: var(--text-3); }
.pager .btns { display: flex; gap: 6px; }

/* ============================================================
   Toast
   ============================================================ */
#toast-box { position: fixed; top: 74px; right: 24px; z-index: 999; display: flex; flex-direction: column; gap: 10px; }
.toast {
  padding: 12px 18px 12px 15px;
  border-radius: var(--radius-sm);
  color: #fff;
  font-size: 13.5px;
  box-shadow: var(--shadow-lg);
  animation: slideIn .28s cubic-bezier(.2, .9, .3, 1.05);
  max-width: 380px;
  word-break: break-all;
  border-left: 3px solid rgba(255, 255, 255, .85);
}
.toast.success { background: #0d9a5f; }
.toast.error   { background: #d13345; }
.toast.info    { background: #232c44; }
@keyframes slideIn { from { transform: translateX(40px); opacity: 0; } to { transform: none; opacity: 1; } }

/* ============================================================
   登录页
   ============================================================ */
.login-wrap { min-height: 100vh; display: flex; }
.login-left {
  flex: 1;
  background:
    radial-gradient(at 20% 15%, rgba(77, 111, 255, .28) 0px, transparent 55%),
    radial-gradient(at 85% 85%, rgba(99, 102, 241, .22) 0px, transparent 50%),
    linear-gradient(150deg, #0c1330 0%, #101b48 55%, #0b1230 100%);
  color: #fff;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 70px 72px;
  position: relative;
  overflow: hidden;
}
.login-left::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, .035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .035) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(ellipse at 30% 40%, #000 20%, transparent 75%);
}
.login-left .login-brand { display: flex; align-items: center; gap: 13px; margin-bottom: 42px; position: relative; }
.login-left h1 { font-size: 31px; margin-bottom: 18px; letter-spacing: 1px; font-weight: 750; position: relative; }
.login-left p { font-size: 14.5px; opacity: .78; line-height: 2; max-width: 460px; position: relative; }
.login-left .login-stats { display: flex; gap: 44px; margin-top: 52px; position: relative; }
.login-left .login-stats .num { font-size: 26px; font-weight: 700; font-variant-numeric: tabular-nums; color: #9cb4ff; }
.login-left .login-stats .lb { font-size: 12px; opacity: .6; margin-top: 3px; letter-spacing: 1px; }
.login-right {
  width: 500px;
  display: flex; align-items: center; justify-content: center;
  padding: 44px 40px;
  background: var(--bg);
}
.login-card { width: 100%; max-width: 396px; }
.login-card .card { padding: 32px; margin: 0; }

/* ============================================================
   门户通用（深色）
   ============================================================ */
.portal-shell {
  background:
    radial-gradient(at 0% 0%, rgba(43, 83, 240, .22) 0px, transparent 48%),
    radial-gradient(at 100% 10%, rgba(99, 102, 241, .16) 0px, transparent 45%),
    radial-gradient(at 50% 100%, rgba(15, 23, 42, .9) 0px, transparent 55%),
    var(--dk-bg);
  min-height: 100vh;
}

/* ============================================================
   空状态 / 加载
   ============================================================ */
.empty-state { text-align: center; padding: 52px 20px; color: var(--text-3); }
.empty-state .icon {
  width: 52px; height: 52px;
  margin: 0 auto 14px;
  border-radius: 14px;
  border: 1px dashed var(--border-strong);
  display: flex; align-items: center; justify-content: center;
  position: relative;
}
.empty-state .icon::before {
  content: "";
  width: 18px; height: 14px;
  border: 2px solid var(--text-3);
  border-radius: 50% 50% 50% 50% / 60% 60% 40% 40%;
  border-top: none;
}
.empty-state .t { font-size: 14px; color: var(--text-2); font-weight: 600; }

/* 入场动画 */
@keyframes fadeUp { from { transform: translateY(16px); opacity: 0; } to { transform: none; opacity: 1; } }
.fade-up { animation: fadeUp .5s ease both; }
.fade-up-1 { animation-delay: .06s; }
.fade-up-2 { animation-delay: .12s; }
.fade-up-3 { animation-delay: .18s; }

/* ============================================================
   响应式
   ============================================================ */
@media (max-width: 960px) {
  .login-left { display: none; }
  .login-right { width: 100%; }
  .form-grid { grid-template-columns: 1fr; }
  .detail-grid { grid-template-columns: 1fr; }
  .timeline-item .t-body { grid-template-columns: 1fr; }
  .sidebar { display: none; }
  .content { padding: 20px 16px; }
  .topbar { padding: 0 16px; }
}