/* ============================================================
   诺格科技 后台管理 · 2026 深色科技风
   与前台同源视觉: Aurora 极光 / 玻璃拟态 / 圆角 / 流畅动效
   ============================================================ */

/* ---------- 变量（与前台 style.css 对齐） ---------- */
:root {
  --bg: #0b0f1e;
  --bg-2: #0e1428;
  --surface: rgba(255, 255, 255, 0.04);
  --surface-2: rgba(255, 255, 255, 0.07);
  --border: rgba(255, 255, 255, 0.09);
  --border-strong: rgba(255, 255, 255, 0.16);
  --text: #eef2ff;
  --text-2: #a5b0cf;
  --text-3: #6d7898;
  --primary: #6366f1;
  --primary-2: #8b5cf6;
  --accent: #22d3ee;
  --success: #34d399;
  --warning: #fbbf24;
  --danger: #f87171;
  --grad: linear-gradient(120deg, #6366f1 0%, #8b5cf6 55%, #22d3ee 100%);
  --grad-soft: linear-gradient(120deg, rgba(99,102,241,.16), rgba(34,211,238,.10));
  --shadow: 0 20px 60px rgba(0,0,0,.45);
  --shadow-glow: 0 0 40px rgba(99,102,241,.35);
  --radius: 18px;
  --radius-lg: 24px;
  --radius-sm: 10px;
  --font: "Segoe UI", "PingFang SC", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, "Helvetica Neue", Arial, sans-serif;
  --sidebar-w: 248px;
  --topbar-h: 68px;
}

/* ---------- 基础 ---------- */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  font-size: 15px;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
img, svg { vertical-align: middle; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
::selection { background: rgba(99,102,241,.4); color: #fff; }

/* ---------- 背景氛围层（与前台一致） ---------- */
.bg-aurora { position: fixed; inset: 0; z-index: -2; overflow: hidden; background: var(--bg); }
.orb {
  position: absolute; border-radius: 50%; filter: blur(90px); opacity: .45;
  animation: float 18s ease-in-out infinite;
}
.orb-1 { width: 520px; height: 520px; background: radial-gradient(circle, rgba(99,102,241,.35), transparent 70%); top: -180px; left: -120px; }
.orb-2 { width: 460px; height: 460px; background: radial-gradient(circle, rgba(34,211,238,.22), transparent 70%); bottom: -160px; right: -100px; animation-delay: -6s; }
.orb-3 { width: 340px; height: 340px; background: radial-gradient(circle, rgba(139,92,246,.25), transparent 70%); top: 38%; left: 58%; animation-delay: -12s; }
.bg-grid {
  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 90% 70% at 50% 0%, #000 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 90% 70% at 50% 0%, #000 30%, transparent 75%);
}
@keyframes float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(40px, -30px) scale(1.08); }
  66% { transform: translate(-30px, 24px) scale(.94); }
}

/* ---------- 玻璃卡片 ---------- */
.glass {
  background: var(--surface);
  border: 1px solid var(--border);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

/* ============================================================
   登录页
   ============================================================ */
.login-body { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 32px 20px; }
.login-wrap { width: 100%; max-width: 420px; }
.login-card { padding: 42px 40px 30px; position: relative; overflow: hidden; }
.login-card::before {
  content: ""; position: absolute; inset: -1px; z-index: -1;
  background: linear-gradient(120deg, rgba(99,102,241,.35), transparent 40%, rgba(34,211,238,.3));
  border-radius: inherit; opacity: .5;
}
.login-brand { display: flex; align-items: center; gap: 12px; justify-content: center; margin-bottom: 26px; }
.brand-mark {
  width: 44px; height: 44px; border-radius: 13px; background: var(--grad);
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 8px 26px rgba(99,102,241,.45);
}
.login-brand-text { font-size: 22px; font-weight: 800; letter-spacing: .5px; }
.login-brand-text small { display: block; font-size: 11px; color: var(--text-3); letter-spacing: 3px; font-weight: 600; }
.login-eyebrow {
  display: block; text-align: center; font-size: 12px; letter-spacing: 3px;
  color: var(--accent); text-transform: uppercase; margin-bottom: 8px; font-weight: 600;
}
.login-title { text-align: center; font-size: 26px; font-weight: 800; margin-bottom: 6px; }
.login-desc { text-align: center; color: var(--text-2); font-size: 14px; margin-bottom: 26px; }
.login-foot {
  margin-top: 26px; padding-top: 18px; border-top: 1px solid var(--border);
  display: flex; justify-content: space-between; align-items: center;
  font-size: 12.5px; color: var(--text-3);
}
.login-foot a { color: var(--accent); }
.login-foot a:hover { text-decoration: underline; }

/* ---------- 表单组件 ---------- */
.login-form, .panel-body, .form-card { }
.field { margin-bottom: 18px; }
.field label { display: block; font-size: 13px; color: var(--text-2); margin-bottom: 7px; font-weight: 600; }
.input, select.input, textarea.input {
  width: 100%; padding: 12px 15px;
  background: rgba(255,255,255,.05); border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm); color: var(--text); font-size: 15px;
  outline: none; transition: border-color .25s, box-shadow .25s, background .25s;
  font-family: inherit;
}
.input:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(99,102,241,.22); background: rgba(255,255,255,.07); }
.input::placeholder { color: var(--text-3); }
.input.num { max-width: 180px; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 11px 22px; border-radius: 12px; font-size: 14.5px; font-weight: 700;
  transition: transform .2s, box-shadow .25s, background .25s, color .25s, border-color .25s;
  border: 1px solid transparent; white-space: nowrap;
}
.btn:active { transform: scale(.97); }
.btn-primary { background: var(--grad); color: #fff; box-shadow: 0 10px 30px rgba(99,102,241,.38); }
.btn-primary:hover { box-shadow: 0 14px 40px rgba(99,102,241,.55); transform: translateY(-1px); }
.btn-ghost { background: var(--surface); border-color: var(--border-strong); color: var(--text); }
.btn-ghost:hover { background: var(--surface-2); border-color: var(--accent); color: var(--accent); }
.btn-danger { background: rgba(248,113,113,.12); border-color: rgba(248,113,113,.35); color: var(--danger); }
.btn-danger:hover { background: rgba(248,113,113,.2); }
.btn-success { background: rgba(52,211,153,.12); border-color: rgba(52,211,153,.35); color: var(--success); }
.btn-sm { padding: 7px 14px; font-size: 13px; border-radius: 10px; }
.btn-block { width: 100%; }

/* ---------- 提示条 ---------- */
.alert {
  padding: 12px 16px; border-radius: var(--radius-sm); font-size: 14px; margin-bottom: 20px;
  border: 1px solid; display: flex; gap: 10px; align-items: center;
}
.alert-error { background: rgba(248,113,113,.1); border-color: rgba(248,113,113,.35); color: #fecaca; }
.alert-success { background: rgba(52,211,153,.1); border-color: rgba(52,211,153,.35); color: #a7f3d0; }
.alert-info { background: rgba(99,102,241,.1); border-color: rgba(99,102,241,.4); color: #c7d2fe; }

/* ============================================================
   后台布局
   ============================================================ */
.admin-shell { display: flex; min-height: 100vh; }

/* ---------- 侧边栏 ---------- */
.sidebar {
  width: var(--sidebar-w); position: fixed; inset: 0 auto 0 0; z-index: 60;
  background: rgba(10, 13, 28, .86);
  backdrop-filter: blur(22px); -webkit-backdrop-filter: blur(22px);
  border-right: 1px solid var(--border);
  display: flex; flex-direction: column; padding: 24px 16px;
  transition: transform .35s cubic-bezier(.2,.7,.3,1);
  overflow-y: auto;
}
.side-brand { display: flex; align-items: center; gap: 11px; padding: 2px 8px 22px; }
.side-brand .brand-mark { width: 38px; height: 38px; border-radius: 11px; }
.side-brand-text { font-size: 18px; font-weight: 800; }
.side-brand-text small { display: block; font-size: 10px; color: var(--text-3); letter-spacing: 2.5px; font-weight: 600; }
.side-label { font-size: 11px; letter-spacing: 2px; color: var(--text-3); padding: 14px 10px 8px; text-transform: uppercase; }
.side-nav a {
  display: flex; align-items: center; gap: 12px;
  padding: 11px 14px; border-radius: 12px; margin-bottom: 3px;
  color: var(--text-2); font-size: 14.5px; font-weight: 600;
  transition: background .2s, color .2s;
  position: relative;
}
.side-nav a .nav-ico { width: 19px; height: 19px; flex: none; opacity: .85; }
.side-nav a:hover { background: var(--surface); color: var(--text); }
.side-nav a.active {
  background: linear-gradient(120deg, rgba(99,102,241,.2), rgba(34,211,238,.08));
  color: #fff; border: 1px solid rgba(99,102,241,.35);
}
.side-nav a.active::before {
  content: ""; position: absolute; left: -16px; top: 22%; bottom: 22%; width: 3px;
  background: var(--grad); border-radius: 99px;
}
.side-nav .badge-dot {
  margin-left: auto; background: var(--danger); color: #fff; font-size: 11px; font-weight: 700;
  min-width: 20px; height: 20px; line-height: 20px; text-align: center; border-radius: 99px; padding: 0 6px;
}
.side-foot {
  margin-top: auto; padding-top: 18px; border-top: 1px solid var(--border);
  display: flex; flex-direction: column; gap: 6px;
}
.side-foot a {
  display: flex; align-items: center; gap: 10px; padding: 10px 14px;
  border-radius: 10px; color: var(--text-3); font-size: 13.5px; transition: background .2s, color .2s;
}
.side-foot a:hover { background: var(--surface); color: var(--text); }
.side-foot a.logout { color: var(--danger); }
.side-foot a.logout:hover { background: rgba(248,113,113,.1); }

/* ---------- 主区域 ---------- */
.admin-main { flex: 1; margin-left: var(--sidebar-w); min-width: 0; display: flex; flex-direction: column; }

/* 顶栏 */
.topbar {
  height: var(--topbar-h); position: sticky; top: 0; z-index: 50;
  background: rgba(11, 15, 30, .72);
  backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; gap: 18px; padding: 0 30px;
}
.topbar-toggle {
  display: none; width: 40px; height: 40px; border-radius: 10px;
  background: var(--surface); border: 1px solid var(--border-strong); align-items: center; justify-content: center;
}
.topbar-title { font-size: 17px; font-weight: 800; }
.topbar-title small { color: var(--text-3); font-size: 13px; font-weight: 600; margin-left: 10px; }
.topbar-spacer { flex: 1; }
.topbar-user {
  display: flex; align-items: center; gap: 10px;
  background: var(--surface); border: 1px solid var(--border);
  padding: 6px 14px 6px 8px; border-radius: 99px;
}
.topbar-user .avatar {
  width: 30px; height: 30px; border-radius: 50%; background: var(--grad);
  display: flex; align-items: center; justify-content: center; font-size: 13px; font-weight: 800; color: #fff;
}
.topbar-user .u-name { font-size: 13.5px; font-weight: 700; }
.topbar-user .u-tag { font-size: 11px; color: var(--text-3); }

/* 内容区 */
.admin-content { padding: 30px; }

/* 面板（页面容器） */
.panel {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg); box-shadow: var(--shadow);
  overflow: hidden;
}
.panel-head {
  display: flex; align-items: center; gap: 14px; flex-wrap: wrap;
  padding: 20px 24px; border-bottom: 1px solid var(--border);
}
.panel-title { font-size: 16px; font-weight: 800; flex: 1; }
.panel-title small { color: var(--text-3); font-size: 13px; font-weight: 600; margin-left: 8px; }
.panel-actions { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
.panel-body { padding: 24px; }

/* 页面头部（面包屑 + 标题） */
.page-head { margin-bottom: 26px; }
.breadcrumb { font-size: 13px; color: var(--text-3); margin-bottom: 10px; display: flex; gap: 8px; align-items: center; }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb .sep { opacity: .5; }
.page-head h1 { font-size: 26px; font-weight: 800; }
.page-head p { color: var(--text-2); margin-top: 5px; font-size: 14.5px; }

/* ---------- 统计卡片 ---------- */
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-bottom: 26px; }
.stat-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 22px;
  position: relative; overflow: hidden;
  transition: transform .25s, border-color .25s;
}
.stat-card:hover { transform: translateY(-3px); border-color: var(--border-strong); }
.stat-card::after {
  content: ""; position: absolute; right: -30px; top: -30px; width: 110px; height: 110px;
  border-radius: 50%; background: var(--grad); opacity: .12; filter: blur(14px);
}
.stat-label { font-size: 13px; color: var(--text-2); display: flex; align-items: center; gap: 8px; }
.stat-label .ico { width: 17px; height: 17px; color: var(--accent); }
.stat-value { font-size: 32px; font-weight: 800; margin-top: 8px; line-height: 1.1;
  background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.stat-sub { font-size: 12.5px; color: var(--text-3); margin-top: 6px; }

/* ---------- 表格 ---------- */
.table-wrap { overflow-x: auto; }
table.data {
  width: 100%; border-collapse: collapse; font-size: 14px;
}
table.data th {
  text-align: left; padding: 13px 16px; font-size: 12.5px; letter-spacing: .5px;
  color: var(--text-3); text-transform: uppercase; font-weight: 700;
  border-bottom: 1px solid var(--border); background: rgba(255,255,255,.02);
  white-space: nowrap;
}
table.data td {
  padding: 14px 16px; border-bottom: 1px solid var(--border);
  vertical-align: middle;
}
table.data tbody tr { transition: background .18s; }
table.data tbody tr:hover { background: rgba(255,255,255,.03); }
table.data tbody tr:last-child td { border-bottom: none; }
.cell-main { font-weight: 700; }
.cell-sub { color: var(--text-3); font-size: 12.5px; margin-top: 2px; }
.cell-mono { font-family: Consolas, Menlo, monospace; font-size: 13px; color: var(--accent); }

/* 状态标签 */
.badge {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 4px 12px; border-radius: 99px; font-size: 12px; font-weight: 700;
  background: var(--surface-2); border: 1px solid var(--border-strong); color: var(--text-2);
}
.badge-dot-i { width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
.badge-green { background: rgba(52,211,153,.12); border-color: rgba(52,211,153,.35); color: var(--success); }
.badge-red { background: rgba(248,113,113,.12); border-color: rgba(248,113,113,.35); color: var(--danger); }
.badge-blue { background: rgba(99,102,241,.15); border-color: rgba(99,102,241,.4); color: #a5b4fc; }
.badge-amber { background: rgba(251,191,36,.12); border-color: rgba(251,191,36,.35); color: var(--warning); }

/* 行操作链接 */
.row-actions { display: flex; gap: 8px; flex-wrap: wrap; white-space: nowrap; }
.row-actions a {
  display: inline-flex; align-items: center; gap: 5px; font-size: 13px; font-weight: 700;
  padding: 5px 11px; border-radius: 9px; border: 1px solid var(--border-strong);
  color: var(--text-2); background: var(--surface); transition: all .2s;
}
.row-actions a:hover { border-color: var(--accent); color: var(--accent); background: var(--surface-2); }
.row-actions a.del { color: var(--danger); border-color: rgba(248,113,113,.3); }
.row-actions a.del:hover { background: rgba(248,113,113,.1); border-color: var(--danger); }
.row-actions a.view { color: var(--accent); }
.row-actions a.edit { color: #a5b4fc; }

/* 空状态 */
.empty {
  text-align: center; padding: 60px 20px; color: var(--text-3);
}
.empty .empty-ico { width: 46px; height: 46px; margin: 0 auto 14px; opacity: .5; }
.empty p { font-size: 14px; }

/* 分页 */
.pagination { display: flex; gap: 6px; align-items: center; justify-content: flex-end; padding: 16px 24px; flex-wrap: wrap; }
.pagination a, .pagination span {
  min-width: 34px; height: 34px; line-height: 34px; text-align: center;
  border-radius: 9px; font-size: 13.5px; font-weight: 700; padding: 0 8px;
  background: var(--surface); border: 1px solid var(--border-strong); color: var(--text-2);
}
.pagination a:hover { border-color: var(--accent); color: var(--accent); }
.pagination .cur { background: var(--grad); color: #fff; border-color: transparent; }
.pagination .info { background: none; border: none; color: var(--text-3); font-weight: 600; }

/* 筛选条 */
.filter-bar {
  display: flex; gap: 12px; align-items: center; flex-wrap: wrap;
  padding: 16px 24px; border-bottom: 1px solid var(--border);
  background: rgba(255,255,255,.015);
}
.filter-bar .input { max-width: 240px; }
.filter-bar .spacer { flex: 1; }

/* ---------- 表单布局 ---------- */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0 22px; }
.form-grid .span2 { grid-column: span 2; }
.form-card { max-width: 860px; }
.form-hint { font-size: 12.5px; color: var(--text-3); margin-top: 5px; }
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 0 22px; }
textarea.input { min-height: 96px; resize: vertical; line-height: 1.6; }
textarea.input.tall { min-height: 150px; }
.required-mark { color: var(--danger); margin-left: 2px; }

/* 详情展示 */
.detail-grid { display: grid; grid-template-columns: 160px 1fr; gap: 12px 20px; font-size: 14.5px; }
.detail-grid .d-label { color: var(--text-3); font-weight: 600; }
.detail-grid .d-value { color: var(--text); word-break: break-word; }

/* 消息详情时间轴样式 */
.msg-body { background: rgba(255,255,255,.03); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 16px 18px; white-space: pre-wrap; line-height: 1.8; }

/* ---------- 留言管理 ---------- */
.seg { display: inline-flex; flex-wrap: wrap; gap: 6px; }
.seg a {
  font-size: 13px; padding: 7px 16px; border-radius: 999px;
  color: var(--text-2); border: 1px solid var(--border);
  background: var(--surface); transition: all .25s;
}
.seg a:hover { border-color: var(--border-strong); color: var(--text); }
.seg a.active { background: var(--grad); color: #fff; border-color: transparent; box-shadow: var(--shadow-glow); }

.search-form { display: flex; align-items: center; gap: 8px; position: relative; }
.search-ico { position: absolute; left: 12px; color: var(--text-3); display: inline-flex; }
.search-form .input { padding-left: 36px; }

input[type="checkbox"].check-all, .table input[type="checkbox"], .bulk-all input[type="checkbox"] {
  width: 16px; height: 16px; accent-color: var(--primary); cursor: pointer;
}
.row-unread td { background: rgba(99,102,241,.06); }
.row-unread .cell-main { color: #fff; font-weight: 700; }

.cell-main { color: var(--text); font-weight: 600; line-height: 1.4; }
.cell-sub { color: var(--text-3); font-size: 12px; line-height: 1.5; }
.cell-preview {
  background: none; border: none; color: var(--text-2); text-align: left;
  font-size: 13px; line-height: 1.6; padding: 0; cursor: pointer;
}
.cell-preview:hover { color: var(--accent); }

.bulk-bar {
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
  padding: 12px 4px; color: var(--text-3); font-size: 13px;
}
.bulk-all { display: inline-flex; align-items: center; gap: 6px; cursor: pointer; }

.pagination .page-link {
  display: inline-flex; align-items: center; justify-content: center; min-width: 34px; height: 34px;
  padding: 0 10px; border-radius: var(--radius-sm); font-size: 13px;
  border: 1px solid var(--border); background: var(--surface); color: var(--text-2);
  transition: all .25s;
}
.pagination .page-link:hover:not(.current) { border-color: var(--accent); color: var(--accent); }
.pagination .page-link.current { background: var(--grad); color: #fff; border-color: transparent; box-shadow: var(--shadow-glow); }

/* 留言详情弹窗 */
.msg-modal {
  position: fixed; inset: 0; z-index: 100; display: flex; align-items: center; justify-content: center;
  padding: 20px; background: rgba(5,8,18,.72);
  backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px);
  animation: fadeIn .25s both;
}
.msg-modal[hidden] { display: none; }
.msg-modal-card {
  width: 100%; max-width: 560px; max-height: 86vh; overflow: auto;
  background: var(--bg-2); border: 1px solid var(--border-strong); border-radius: var(--radius-lg);
  box-shadow: var(--shadow); padding: 26px 26px 20px;
  animation: popIn .3s cubic-bezier(.16,.8,.3,1) both;
}
.msg-modal-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; margin-bottom: 16px; }
.msg-modal-head h3 { font-size: 18px; margin-bottom: 2px; }
.msg-meta { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 8px 18px; padding: 12px 0; border-top: 1px dashed var(--border); border-bottom: 1px dashed var(--border); margin-bottom: 14px; }
.meta-item span { display: block; font-size: 12px; color: var(--text-3); }
.meta-item b { font-size: 13px; font-weight: 600; color: var(--text-2); }
.msg-body { margin-bottom: 18px; }
.msg-modal-foot { display: flex; align-items: center; justify-content: space-between; gap: 10px; flex-wrap: wrap; }
.msg-modal-foot form { display: inline-flex; gap: 8px; flex-wrap: wrap; }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes popIn { from { opacity: 0; transform: translateY(14px) scale(.97); } to { opacity: 1; transform: none; } }

/* ---------- 下拉菜单 ---------- */
select.input { appearance: none; -webkit-appearance: none;
  background-image: linear-gradient(45deg, transparent 50%, var(--text-3) 50%), linear-gradient(135deg, var(--text-3) 50%, transparent 50%);
  background-position: calc(100% - 18px) calc(50% - 3px), calc(100% - 13px) calc(50% - 3px);
  background-size: 5px 5px; background-repeat: no-repeat; padding-right: 36px;
}

/* ---------- 移动端 ---------- */
@media (max-width: 1024px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .form-grid { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .sidebar {
    transform: translateX(-100%);
    box-shadow: 20px 0 60px rgba(0,0,0,.5);
  }
  .sidebar.open { transform: translateX(0); }
  .admin-main { margin-left: 0; }
  .topbar { padding: 0 16px; }
  .topbar-toggle { display: flex; }
  .topbar-title small { display: none; }
  .admin-content { padding: 18px 16px; }
  .side-overlay {
    position: fixed; inset: 0; z-index: 55; background: rgba(0,0,0,.55);
    backdrop-filter: blur(3px); -webkit-backdrop-filter: blur(3px);
    opacity: 0; pointer-events: none; transition: opacity .3s;
  }
  .side-overlay.show { opacity: 1; pointer-events: auto; }
}
@media (max-width: 520px) {
  .stats-grid { grid-template-columns: 1fr 1fr; gap: 14px; }
  .stat-card { padding: 16px; }
  .stat-value { font-size: 26px; }
  .login-card { padding: 32px 22px 24px; }
  .table-wrap { margin: 0 -8px; }
  .filter-bar .input { max-width: 100%; }
  .two-col { grid-template-columns: 1fr; }
  .detail-grid { grid-template-columns: 1fr; gap: 4px 0; }
  .pagination { justify-content: center; }
}

/* 页面切换微动效 */
.page-enter { animation: pageIn .45s cubic-bezier(.16,.8,.3,1) both; }

/* ---------- 表单控件补充 ---------- */
.switch-row { display: inline-flex; align-items: center; gap: 10px; cursor: pointer; font-size: 14px; color: var(--text-2); margin: 4px 0 22px; }
.switch-row input { display: none; }
.switch-row .switch {
  position: relative; width: 42px; height: 23px; border-radius: 999px;
  background: var(--surface-2); border: 1px solid var(--border-strong);
  transition: background .25s, border-color .25s; flex-shrink: 0;
}
.switch-row .switch::after {
  content: ''; position: absolute; top: 2px; left: 2px; width: 17px; height: 17px;
  border-radius: 50%; background: var(--text-2); transition: transform .25s, background .25s;
}
.switch-row input:checked + .switch { background: var(--grad); border-color: transparent; }
.switch-row input:checked + .switch::after { transform: translateX(19px); background: #fff; }

.form-actions { display: flex; gap: 10px; align-items: center; padding-top: 6px; }

/* ---------- 案例管理 ---------- */
.case-mini { display: flex; align-items: center; gap: 10px; }
.cover-mini {
  width: 34px; height: 34px; border-radius: 9px; flex-shrink: 0;
  display: inline-flex; align-items: center; justify-content: center; color: #fff;
}
@keyframes pageIn { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: none; } }