/* ============================================================
 * admin-ui.css — 后台统一设计系统 v2（商务深蓝 / 经典左侧菜单）
 * ------------------------------------------------------------
 * 加载顺序：main.css → admin.css → 本文件（覆盖层，后写生效）
 * 设计目标：
 *   1. 布局：选项 A —— 左侧固定垂直导航（可折叠仅图标）+ 顶部工具栏
 *      （面包屑 / 通知 / 主题切换 / 用户头像）+ 右侧内容区
 *   2. 配色：商务深蓝 #1E5AA8，辅助浅蓝 #E8F1FC，正文 #222 / #666，白底
 *   3. 组件：卡片 6px 圆角浅阴影、线条表格隔行浅灰、表单淡蓝聚焦、
 *      主/次/危险三色按钮、统一面包屑 / 分页 / 弹窗 / 提示框
 *   4. 交互：≤900px 侧边转抽屉（汉堡按钮）；菜单高亮 + 子菜单折叠；
 *      表格搜索 / 分页 / 弹窗均为无刷新 JS 交互（见 admin-ui.js）
 *   5. 动效克制：仅 0.15s 级的颜色 / 背景 / 边框过渡，无装饰动画
 *   6. 明暗双主题：一键切换（theme.js 接管 [data-mode-toggle]）
 *
 * 令牌作用域铁律（2026-10-22 修「弹窗发虚」的根因）：
 *   确认弹窗 / Toast / 抽屉由 JS 动态挂到 <body> 末尾（.admin-shell 之外），
 *   作用域令牌它们继承不到 → 必须挂 :root。本文件同时写 :root 与
 *   :root[data-accent] 两份选择器：即便 <html> 残留前台的 data-accent，
 *   后台也强制走商务深蓝，不被主站八色强调色体系污染。
 * ============================================================ */

/* ============================================================
 * 0. 设计令牌
 * ============================================================ */
:root,
:root[data-accent] {
  /* 品牌主色 */
  --primary: #1E5AA8;
  --primary-hover: #1A4F92;
  --primary-active: #16427A;
  --primary-soft: #E8F1FC;          /* 辅助浅蓝：选中态 / 焦点环 / 徽章底 */
  --primary-soft-2: #D9E8F9;        /* 浅蓝加深一档：hover 交替 */
  --primary-ink: #174D8C;           /* 浅蓝底上的文字色，对比度 ≥ 4.5:1 */
  --primary-ghost: rgba(30, 90, 168, 0.14);

  /* 中性色 */
  --bg: #F4F6FA;                    /* 页面底 */
  --surface: #FFFFFF;               /* 卡片 / 表格 / 弹窗 */
  --surface-2: #F8FAFD;             /* 表头 / 隔行 / 输入框底 */
  --surface-3: #EEF2F8;             /* 次级填充 / 骨架 */
  --text: #222222;
  --text-2: #666666;
  --text-3: #8A94A6;                /* 占位符 / 禁用 */
  --line: #E4E9F0;                  /* 常规边框 */
  --line-2: #CFD8E4;                /* 强边框：输入框 / 分割 */

  /* 功能色 */
  --danger: #D64541;
  --danger-hover: #BE3A36;
  --danger-soft: #FBEAE9;
  --danger-ink: #A93431;
  --ok: #1F9D6C;
  --ok-soft: #E6F5EF;
  --warn: #C77E1B;
  --warn-soft: #FBF2E2;
  --info: #2E7FD9;
  --info-soft: #E8F2FD;
  --notif: #E04B4B;

  /* 形状 / 阴影 */
  --radius: 6px;
  --radius-sm: 4px;
  --radius-lg: 8px;
  --radius-pill: 999px;
  --shadow-sm: 0 1px 3px rgba(23, 43, 77, 0.07);
  --shadow-md: 0 8px 24px -8px rgba(23, 43, 77, 0.16);
  --shadow-pop: 0 12px 32px -8px rgba(23, 43, 77, 0.22);

  /* 布局尺寸 */
  --sb-w: 232px;                    /* 侧边展开宽 */
  --sb-w-collapsed: 64px;           /* 侧边折叠宽（仅图标） */
  --top-h: 56px;
  --gap: 16px;
  --pad: 20px;
  --ease: cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --dur: 0.15s;

  /* ---- 兼容别名：admin.css / hero-picker / 登录页仍引用旧令牌名 ---- */
  --bg-page: var(--bg);
  --bg-elev: var(--surface);
  --border: var(--line);
  --text-dim: var(--text-2);
  --glass-bg: rgba(255, 255, 255, 0.92);
  --accent: var(--primary);
  --accent-soft: var(--primary-soft);
  --accent-ink: var(--primary-ink);
  --accent-glow: rgba(30, 90, 168, 0.28);
  --accent-cta-bg: var(--primary);
  --accent-cta-ink: #FFFFFF;
  --radius-md: var(--radius);
  --radius-lg-legacy: var(--radius-lg);
  --font-sans: "Source Han Sans SC", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-mono: "Cascadia Code", Consolas, "Courier New", monospace;
  --container: 1600px;
}

/* 深色主题：选择器带 [data-theme] 提升权重，压过 main.css 的
   [data-theme="dark"] 与 [data-accent="x"][data-theme="dark"] */
:root[data-theme="dark"],
:root[data-theme="dark"][data-accent] {
  --primary: #4C8BD6;
  --primary-hover: #5E99DD;
  --primary-active: #3E79BE;
  --primary-soft: rgba(76, 139, 214, 0.16);
  --primary-soft-2: rgba(76, 139, 214, 0.26);
  --primary-ink: #9CC3EE;
  --primary-ghost: rgba(76, 139, 214, 0.22);

  --bg: #0F141C;
  --surface: #171E29;
  --surface-2: #1D2634;
  --surface-3: #253040;
  --text: #E9EEF6;
  --text-2: #A4B1C4;
  --text-3: #7A8798;
  --line: #2A3547;
  --line-2: #3A4763;

  --danger: #E06C63;
  --danger-hover: #E8817A;
  --danger-soft: rgba(224, 108, 99, 0.16);
  --danger-ink: #F0A49D;
  --ok: #3DB88A;
  --ok-soft: rgba(61, 184, 138, 0.16);
  --warn: #E0A23C;
  --warn-soft: rgba(224, 162, 60, 0.16);
  --info: #5FA3E8;
  --info-soft: rgba(95, 163, 232, 0.16);
  --notif: #E05A5A;

  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.34);
  --shadow-md: 0 8px 24px -8px rgba(0, 0, 0, 0.5);
  --shadow-pop: 0 14px 36px -8px rgba(0, 0, 0, 0.56);
  --glass-bg: rgba(23, 30, 41, 0.92);
}

/* ============================================================
 * 1. 基础（后台页面范围内）
 * ============================================================ */
.admin-body {
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  -webkit-font-smoothing: antialiased;
}
.admin-body ::selection { background: var(--primary-soft); color: var(--primary-ink); }
.admin-body a { color: inherit; text-decoration: none; }
.admin-body :focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; border-radius: var(--radius-sm); }
/* 后台滚动条：细浅灰，不抢眼 */
.admin-body *::-webkit-scrollbar { width: 10px; height: 10px; }
.admin-body *::-webkit-scrollbar-thumb { background: var(--line-2); border-radius: 999px; border: 3px solid transparent; background-clip: content-box; }
.admin-body *::-webkit-scrollbar-thumb:hover { background: var(--text-3); background-clip: content-box; }
.admin-body *::-webkit-scrollbar-track { background: transparent; }

/* ============================================================
 * 2. 布局框架（选项 A：左侧菜单 + 顶栏 + 内容区）
 * ============================================================ */
.admin-shell {
  display: flex;
  min-height: 100vh;
  background: var(--bg);
}

/* ---- 侧边栏 ---- */
.admin-sidebar {
  width: var(--sb-w);
  flex: none;
  position: sticky;
  top: 0;
  height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border-right: 1px solid var(--line);
  z-index: 60;
  transition: width var(--dur) var(--ease);
}
.admin-sidebar-head {
  display: flex;
  align-items: center;
  gap: 10px;
  height: var(--top-h);
  flex: none;
  padding: 0 14px 0 16px;
  border-bottom: 1px solid var(--line);
}
.admin-brand { display: flex; align-items: center; gap: 10px; min-width: 0; flex: 1; }
.admin-brand-mark {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  flex: none;
  border-radius: var(--radius);
  background: var(--primary);
  color: #fff;
  font-weight: 800;
  font-size: 15px;
  letter-spacing: 0;
}
.admin-brand-text { display: grid; line-height: 1.35; min-width: 0; }
.admin-brand-text strong { font-size: 14px; font-weight: 700; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.admin-brand-text small { font-size: 11px; color: var(--text-2); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.admin-drawer-x { display: none; }

/* 导航 */
.admin-nav { flex: 1; overflow-y: auto; overflow-x: visible; padding: 10px 10px 4px; display: flex; flex-direction: column; gap: 2px; }
.admin-nav-group {
  padding: 12px 10px 5px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--text-3);
  white-space: nowrap;
}
.admin-nav-item { position: relative; }
.admin-nav-link {
  position: relative;
  display: flex;
  align-items: center;
  gap: 11px;
  width: 100%;
  padding: 9px 10px;
  border: 0;
  border-radius: var(--radius);
  background: transparent;
  font: inherit;
  font-size: 13.5px;
  font-weight: 500;
  color: var(--text-2);
  text-align: left;
  cursor: pointer;
  white-space: nowrap;
  transition: background var(--dur), color var(--dur);
}
.admin-nav-link svg { width: 18px; height: 18px; flex: none; }
.admin-nav-link:hover { background: var(--primary-soft); color: var(--primary-ink); }
.admin-nav-link.is-active { background: var(--primary-soft); color: var(--primary-ink); font-weight: 600; }
.admin-nav-link.is-active::before {
  content: "";
  position: absolute;
  left: -10px;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 20px;
  border-radius: 0 3px 3px 0;
  background: var(--primary);
}
.admin-nav-caret { margin-left: auto; width: 15px !important; height: 15px !important; transition: transform var(--dur); flex: none; }
.admin-nav-item.has-sub.is-open > .admin-nav-link .admin-nav-caret { transform: rotate(90deg); }

/* 子菜单（展开态：手风琴） */
.admin-nav-sub {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows var(--dur) var(--ease);
  overflow: hidden;
}
.admin-nav-item.has-sub.is-open > .admin-nav-sub { grid-template-rows: 1fr; }
.admin-nav-sub-inner { min-height: 0; overflow: hidden; display: flex; flex-direction: column; gap: 1px; padding: 3px 0 3px 20px; }
.admin-nav-sub a {
  padding: 7px 10px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  color: var(--text-2);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  transition: background var(--dur), color var(--dur);
}
.admin-nav-sub a::before {
  content: "";
  display: inline-block;
  width: 4px;
  height: 4px;
  margin-right: 8px;
  border-radius: 50%;
  background: var(--line-2);
  vertical-align: 3px;
  transition: background var(--dur);
}
.admin-nav-sub a:hover { background: var(--primary-soft); color: var(--primary-ink); }
.admin-nav-sub a:hover::before { background: var(--primary); }
.admin-nav-sub a.is-active { color: var(--primary-ink); font-weight: 600; background: var(--primary-soft); }
.admin-nav-sub a.is-active::before { background: var(--primary); }

/* 折叠态（仅图标）：隐藏文字，子菜单悬停弹出浮层 */
.admin-shell.is-collapsed .admin-sidebar { width: var(--sb-w-collapsed); }
.admin-shell.is-collapsed .admin-brand-text,
.admin-shell.is-collapsed .admin-nav-group,
.admin-shell.is-collapsed .admin-nav-text,
.admin-shell.is-collapsed .admin-nav-caret { display: none; }
.admin-shell.is-collapsed .admin-sidebar-head { justify-content: center; padding: 0; }
.admin-shell.is-collapsed .admin-brand { justify-content: center; }
.admin-shell.is-collapsed .admin-nav-link { justify-content: center; padding: 10px; }
.admin-shell.is-collapsed .admin-nav-link.is-active::before { left: -10px; }
.admin-shell.is-collapsed .admin-sidebar-foot .admin-nav-link { justify-content: center; }
.admin-shell.is-collapsed .admin-nav-sub { display: none; }
/* JS 悬停/聚焦时把子菜单转为 fixed 浮层（.is-flyout 由 admin-ui.js 添加） */
.admin-shell.is-collapsed .admin-nav-sub.is-flyout {
  display: block;
  position: fixed;
  left: calc(var(--sb-w-collapsed) + 6px);
  top: 0;
  z-index: 120;
  min-width: 148px;
  padding: 5px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-pop);
}
.admin-shell.is-collapsed .admin-nav-sub.is-flyout .admin-nav-sub-inner { padding: 0; gap: 1px; }

/* 侧边栏底部 */
.admin-sidebar-foot { flex: none; display: flex; flex-direction: column; gap: 2px; padding: 8px 10px 10px; border-top: 1px solid var(--line); }
.admin-sidebar-foot .admin-nav-link { font-size: 13px; }
.admin-sidebar-foot .admin-nav-link svg { width: 16px; height: 16px; }

/* ---- 内容列 ---- */
.admin-content { flex: 1; min-width: 0; display: flex; flex-direction: column; }

/* ---- 顶栏 ---- */
.admin-topbar {
  position: sticky;
  top: 0;
  z-index: 40;
  display: flex;
  align-items: center;
  gap: 12px;
  height: var(--top-h);
  flex: none;
  padding: 0 var(--pad);
  background: var(--glass-bg);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.admin-burger { display: none; }
.admin-topbar-title { font-size: 14.5px; font-weight: 700; letter-spacing: -0.01em; white-space: nowrap; }
.admin-topbar-right { margin-left: auto; display: flex; align-items: center; gap: 8px; }

/* 折叠按钮（桌面常驻） */
.admin-collapse-btn {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  flex: none;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--text-2);
  cursor: pointer;
  transition: color var(--dur), border-color var(--dur), background var(--dur);
}
.admin-collapse-btn:hover { color: var(--primary-ink); border-color: var(--primary); background: var(--primary-soft); }
.admin-collapse-btn svg { width: 17px; height: 17px; transition: transform var(--dur) var(--ease); }
.admin-shell.is-collapsed .admin-collapse-btn svg { transform: rotate(180deg); }

/* 顶栏图标按钮（通知 / 主题）通用 */
.admin-icon-btn {
  position: relative;
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  flex: none;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--text-2);
  cursor: pointer;
  transition: color var(--dur), border-color var(--dur), background var(--dur);
}
.admin-icon-btn:hover { color: var(--primary-ink); border-color: var(--primary); background: var(--primary-soft); }
.admin-icon-btn svg { width: 17px; height: 17px; }
.admin-icon-btn.is-on { color: var(--primary-ink); border-color: var(--primary); background: var(--primary-soft); }

/* ---- 面包屑 ---- */
.au-crumb { display: flex; align-items: center; gap: 7px; font-size: 13px; color: var(--text-2); min-width: 0; flex-wrap: wrap; }
.au-crumb a { color: var(--text-2); transition: color var(--dur); }
.au-crumb a:hover { color: var(--primary-ink); }
.au-crumb-sep { color: var(--text-3); }
.au-crumb-cur { color: var(--text); font-weight: 600; }

/* ---- 主内容区 / 页脚 ---- */
.admin-main { flex: 1; width: 100%; max-width: var(--container); margin: 0 auto; padding: var(--pad) var(--pad) 40px; }
.admin-footer { flex: none; padding: 14px var(--pad); border-top: 1px solid var(--line); color: var(--text-3); font-size: 12px; text-align: center; }
.admin-footer a { color: var(--text-2); }
.admin-footer a:hover { color: var(--primary-ink); }

/* ---- 移动端抽屉遮罩 ---- */
.admin-drawer-mask { display: none; }

/* ============================================================
 * 3. 顶栏浮层：通知 + 用户菜单（统一 .au-pop）
 * ============================================================ */
.au-pop-anchor { position: relative; }
.au-pop {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  z-index: 130;
  min-width: 220px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-pop);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-4px);
  transition: opacity var(--dur), transform var(--dur), visibility var(--dur);
}
.au-pop.is-open { opacity: 1; visibility: visible; transform: none; }
.au-pop-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 11px 14px; border-bottom: 1px solid var(--line); font-size: 13px; font-weight: 700; }
.au-pop-head .au-pop-more { font-size: 12px; font-weight: 500; color: var(--primary-ink); cursor: pointer; }
.au-pop-body { max-height: 320px; overflow-y: auto; }
.au-pop-foot { padding: 9px 14px; border-top: 1px solid var(--line); font-size: 12px; color: var(--text-3); text-align: center; }

/* 通知 */
.au-notif-badge {
  position: absolute;
  top: -5px;
  right: -5px;
  min-width: 16px;
  height: 16px;
  padding: 0 4px;
  border-radius: 999px;
  background: var(--notif);
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  line-height: 16px;
  text-align: center;
}
.au-notif-item { display: flex; gap: 10px; padding: 11px 14px; border-bottom: 1px solid var(--line); transition: background var(--dur); }
.au-notif-item:last-child { border-bottom: 0; }
.au-notif-item:hover { background: var(--surface-2); }
.au-notif-dot { flex: none; width: 7px; height: 7px; margin-top: 6px; border-radius: 50%; background: var(--primary); }
.au-notif-item.is-read .au-notif-dot { background: var(--line-2); }
.au-notif-body { min-width: 0; flex: 1; }
.au-notif-title { font-size: 13px; font-weight: 600; color: var(--text); }
.au-notif-item.is-read .au-notif-title { color: var(--text-2); font-weight: 500; }
.au-notif-text { margin-top: 2px; font-size: 12px; color: var(--text-2); line-height: 1.6; }
.au-notif-time { margin-top: 3px; font-size: 11px; color: var(--text-3); }
.au-notif-empty { padding: 26px 14px; text-align: center; font-size: 12.5px; color: var(--text-3); }
.au-notif-del {
  flex: none;
  align-self: flex-start;
  margin: 1px 0 0 2px;
  width: 22px;
  height: 22px;
  padding: 0;
  border: 0;
  border-radius: 6px;
  background: transparent;
  color: var(--text-3);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--dur), background var(--dur), color var(--dur);
}
.au-notif-del svg { width: 13px; height: 13px; }
.au-notif-item:hover .au-notif-del,
.au-notif-del:focus-visible { opacity: 1; }
.au-notif-del:hover { background: var(--danger-soft); color: var(--danger); }
@media (hover: none) { .au-notif-del { opacity: 1; } }

/* 用户菜单 */
.au-user-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  height: 34px;
  padding: 0 10px 0 4px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--text);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: border-color var(--dur), background var(--dur);
}
.au-user-btn:hover { border-color: var(--primary); background: var(--primary-soft); }
.au-user-ava {
  display: grid;
  place-items: center;
  width: 26px;
  height: 26px;
  flex: none;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
}
.au-user-name { max-width: 96px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.au-user-btn svg { width: 13px; height: 13px; color: var(--text-3); flex: none; }
.au-user-menu { padding: 5px; }
.au-user-menu a, .au-user-menu button {
  display: flex;
  align-items: center;
  gap: 9px;
  width: 100%;
  padding: 8px 10px;
  border: 0;
  border-radius: var(--radius-sm);
  background: transparent;
  font: inherit;
  font-size: 13px;
  color: var(--text);
  text-align: left;
  cursor: pointer;
  transition: background var(--dur), color var(--dur);
}
.au-user-menu a:hover, .au-user-menu button:hover { background: var(--primary-soft); color: var(--primary-ink); }
.au-user-menu svg { width: 15px; height: 15px; color: var(--text-2); flex: none; }
.au-user-menu a:hover svg, .au-user-menu button:hover svg { color: var(--primary-ink); }
.au-user-menu .is-danger:hover { background: var(--danger-soft); color: var(--danger-ink); }
.au-user-menu .is-danger:hover svg { color: var(--danger-ink); }
.au-user-menu hr { margin: 5px 0; border: 0; border-top: 1px solid var(--line); }

/* ============================================================
 * 4. 页面结构（标题区 / 区块）
 * ============================================================ */
.admin-page-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin-bottom: var(--gap); }
.admin-page-head h2 { font-size: 20px; font-weight: 700; letter-spacing: -0.01em; }
.admin-page-desc { margin-top: 4px; color: var(--text-2); font-size: 13px; }
.admin-page-desc a { color: var(--primary-ink); }

.admin-section { margin-top: var(--gap); }
.admin-section-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin: 0 0 12px; flex-wrap: wrap; }
.admin-section-title { font-size: 15px; font-weight: 700; letter-spacing: -0.01em; }
.admin-section-sub { font-size: 12.5px; color: var(--text-2); margin-top: 2px; }

/* ============================================================
 * 5. 卡片 / 面板（白底 6px 圆角浅阴影统一内边距）
 * ============================================================ */
.admin-shell .glass,
.admin-panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}
.admin-panel { padding: 16px 18px; margin-bottom: var(--gap); }
.admin-panel > h3 {
  display: flex;
  align-items: center;
  gap: 9px;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
  font-size: 14.5px;
  font-weight: 700;
}
.admin-panel > h3 .au-hint-inline { margin-left: auto; font-size: 12px; font-weight: 400; color: var(--text-2); }
.admin-panel-flush { padding: 0; overflow: hidden; }
.admin-panel-flush > h3 { margin: 0; padding: 16px 22px 12px; }

/* ============================================================
 * 6. 按钮（主蓝 / 次灰 / 危险红，尺寸统一）
 * ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  min-height: 36px;
  padding: 0 16px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-family: var(--font-sans);
  font-size: 13.5px;
  font-weight: 600;
  line-height: 1;
  cursor: pointer;
  white-space: nowrap;
  transition: background var(--dur), border-color var(--dur), color var(--dur), box-shadow var(--dur);
}
.btn svg { width: 15px; height: 15px; flex: none; }
.btn:hover { transform: none; }
.btn:active { transform: none; }

/* 主按钮：商务深蓝 */
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-hover); }
.btn-primary:active { background: var(--primary-active); }

/* 次要按钮：灰底灰框 */
.btn-ghost { background: var(--surface); border-color: var(--line-2); color: var(--text-2); }
.btn-ghost:hover { border-color: var(--primary); color: var(--primary-ink); background: var(--primary-soft); }

/* 危险按钮：红 */
.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { background: var(--danger-hover); }
.btn-danger:active { background: var(--danger-ink); }

/* 文字按钮（低强度） */
.btn-text { background: transparent; color: var(--primary-ink); padding: 0 8px; }
.btn-text:hover { background: var(--primary-soft); }

.btn-sm { min-height: 32px; padding: 0 13px; font-size: 12.5px; }
.btn-lg { min-height: 42px; padding: 0 22px; font-size: 14.5px; }
.btn-block { width: 100%; }
.btn[disabled], .btn.is-loading { opacity: 0.6; pointer-events: none; }
.btn.is-loading::before {
  content: "";
  width: 13px;
  height: 13px;
  border-radius: 50%;
  border: 2px solid currentColor;
  border-top-color: transparent;
  animation: au-spin 0.7s linear infinite;
}
@keyframes au-spin { to { transform: rotate(360deg); } }

/* ============================================================
 * 7. 统计卡
 * ============================================================ */
.admin-stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 14px; margin-bottom: var(--gap); }
.admin-stat {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 18px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  transition: border-color var(--dur), box-shadow var(--dur);
}
a.admin-stat:hover { border-color: var(--primary); box-shadow: var(--shadow-md); }
.admin-stat-ic {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  flex: none;
  border-radius: var(--radius);
  background: var(--primary-soft);
  color: var(--primary-ink);
}
.admin-stat-ic svg { width: 20px; height: 20px; }
.admin-stat-body { min-width: 0; flex: 1; }
.admin-stat-num { font-size: 24px; font-weight: 700; letter-spacing: -0.02em; line-height: 1.1; color: var(--text); }
.admin-stat-num .au-sub { font-size: 13px; font-weight: 500; color: var(--text-2); }
.admin-stat-label { margin-top: 3px; font-size: 12px; color: var(--text-2); }
.admin-stat-go { flex: none; color: var(--text-3); transition: color var(--dur); }
a.admin-stat:hover .admin-stat-go { color: var(--primary); }
.admin-stat-go svg { width: 17px; height: 17px; }

/* 仪表盘：占比条 */
.bar { height: 8px; border-radius: 999px; background: var(--surface-3); overflow: hidden; }
.bar > i { display: block; height: 100%; border-radius: 999px; background: var(--primary); transition: width 0.4s var(--ease); }

/* ============================================================
 * 8. 表格（简约线条 + 隔行浅灰 + hover 高亮）
 * ============================================================ */
.admin-table-wrap { overflow-x: auto; border-radius: var(--radius); border: 1px solid var(--line); background: var(--surface); }
.admin-table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
.admin-table th, .admin-table td { padding: 10px 12px; text-align: left; border-bottom: 1px solid var(--line); vertical-align: middle; }
.admin-table thead th { background: var(--surface-2); color: var(--text-2); font-size: 12px; font-weight: 600; white-space: nowrap; }
.admin-table tbody tr:nth-child(even) { background: var(--surface-2); }
.admin-table tbody tr:hover { background: var(--primary-soft); }
.admin-table tbody tr:last-child td { border-bottom: 0; }
.admin-table .col-thumb { width: 88px; }
.admin-table .col-date { width: 135px; white-space: nowrap; }
.admin-table .col-sort { width: 68px; }
.admin-table .col-ops { width: 140px; white-space: nowrap; text-align: right; }
.admin-table th.col-ops { text-align: right; }
.admin-thumb { width: 72px; height: 46px; border-radius: var(--radius-sm); object-fit: cover; background: var(--surface-3); border: 1px solid var(--line); display: block; }
.admin-table .admin-tag { white-space: nowrap; }
.admin-cell-title { font-weight: 600; color: var(--text); }
.admin-cell-sub { display: block; font-size: 12px; color: var(--text-2); margin-top: 2px; word-break: break-all; }
.admin-row-actions { display: inline-flex; gap: 6px; justify-content: flex-end; }
.admin-inline-form { display: inline; }
/* 行内操作按钮：统一尺寸 */
.admin-mini-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 28px;
  padding: 0 11px;
  border: 1px solid var(--line-2);
  border-radius: var(--radius-sm);
  background: var(--surface);
  font: inherit;
  font-size: 12.5px;
  font-weight: 500;
  color: var(--text-2);
  cursor: pointer;
  white-space: nowrap;
  transition: color var(--dur), border-color var(--dur), background var(--dur);
}
.admin-mini-btn:hover { color: var(--primary-ink); border-color: var(--primary); background: var(--primary-soft); }
.admin-mini-btn-danger:hover { color: #fff; border-color: var(--danger); background: var(--danger); }

/* 表格底部：结果统计 + 分页 */
.au-table-foot { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; margin-top: 14px; }
.au-table-count { font-size: 12.5px; color: var(--text-2); }
.au-table-none { padding: 40px 20px; text-align: center; color: var(--text-2); font-size: 13px; }

/* ---- 表格工具栏（搜索 + 批量操作，JS 无刷新过滤） ---- */
.au-toolbar { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-bottom: 12px; }
.au-toolbar .au-search { position: relative; flex: 1 1 220px; max-width: 340px; }
.au-toolbar .au-search svg { position: absolute; left: 11px; top: 50%; transform: translateY(-50%); width: 15px; height: 15px; color: var(--text-3); pointer-events: none; }
.au-toolbar .au-search .admin-input { padding-left: 34px; }
.au-toolbar-actions { margin-left: auto; display: flex; gap: 8px; flex-wrap: wrap; }

/* ============================================================
 * 9. 表单（统一控件 + 淡蓝聚焦）
 * ============================================================ */
.admin-form { display: grid; gap: 16px; }
/* 行内字段：统一「标签 + 控件」两行结构；提示文案不再参与基线对齐，控件始终齐平 */
.admin-form-inline {
  --field-label-h: 18px; /* 标签行高，供复选框与输入框对齐 */
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: flex-start;
}
.admin-form-inline > .admin-label { align-content: start; line-height: var(--field-label-h); }
.admin-form-inline > .admin-check { margin-top: calc(var(--field-label-h) + 6px); min-height: 36px; }
.admin-label { display: grid; gap: 6px; font-size: 13px; font-weight: 600; color: var(--text); }
.admin-label > span { color: var(--text-2); font-weight: 400; font-size: 12px; }
.admin-input, .admin-select, .admin-textarea {
  width: 100%;
  min-height: 36px;
  padding: 7px 12px;
  border: 1px solid var(--line-2);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 13.5px;
  transition: border-color var(--dur), box-shadow var(--dur);
}
.admin-input:hover, .admin-select:hover, .admin-textarea:hover { border-color: var(--text-3); }
.admin-input:focus, .admin-select:focus, .admin-textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-soft);
}
.admin-input::placeholder, .admin-textarea::placeholder { color: var(--text-3); }
.admin-input:disabled, .admin-select:disabled, .admin-textarea:disabled { background: var(--surface-2); color: var(--text-3); cursor: not-allowed; }
.admin-select {
  appearance: none;
  padding-right: 32px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%238A94A6' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  background-size: 13px;
}
.admin-textarea { min-height: 110px; resize: vertical; line-height: 1.7; padding: 9px 12px; }
.admin-check { display: inline-flex; align-items: center; gap: 8px; font-size: 13.5px; font-weight: 500; color: var(--text); cursor: pointer; }
.admin-check input { width: 15px; height: 15px; accent-color: var(--primary); }
.admin-form-actions { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; padding-top: 2px; }
.admin-form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px 16px; }
/* 板块标题：小标签 / 大标题 / 描述 三字段同行，宽度按内容比例分配，紧凑且标签基线一致 */
.admin-heads-grid {
  grid-template-columns: minmax(0, .6fr) minmax(0, .5fr) minmax(0, 2.6fr);
  align-items: start;
  gap: 14px 16px;
}
.admin-heads-grid > .admin-label { min-width: 0; }
.admin-heads-grid .admin-input { text-overflow: ellipsis; }
/* 中等宽度：小标签 + 大标题并排，描述独占整行 */
@media (max-width: 1000px) {
  .admin-heads-grid { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
  .admin-heads-grid > .admin-label:last-child { grid-column: 1 / -1; }
}
/* 窄屏：沿用通用表单的单列规则（≤900px），此处仅复位跨列 */
@media (max-width: 900px) {
  .admin-heads-grid > .admin-label:last-child { grid-column: auto; }
}
/* 首屏图片：路径 / 点击链接 / 打开方式 三项同行，路径与链接按比例分配、打开方式固定窄列 */
.admin-hero-link-grid { grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr) 132px; align-items: start; }
.admin-hero-link-grid > .admin-label { min-width: 0; }
/* 中等宽度：路径独占一行，链接与打开方式并排 */
@media (max-width: 1100px) {
  .admin-hero-link-grid { grid-template-columns: minmax(0, 1fr) 132px; }
  .admin-hero-link-grid > .admin-label:first-child { grid-column: 1 / -1; }
}
@media (max-width: 900px) {
  .admin-hero-link-grid > .admin-label:first-child { grid-column: auto; }
}
.admin-hint { color: var(--text-2); font-size: 12px; line-height: 1.7; }
.admin-hint code { padding: 1px 6px; border-radius: var(--radius-sm); background: var(--primary-soft); color: var(--primary-ink); font-family: var(--font-mono); font-size: 11.5px; }
.au-field-req::after { content: " *"; color: var(--danger); }
.admin-form-note { font-size: 12px; color: var(--text-3); }

/* ============================================================
 * 10. 徽章 / 标签
 * ============================================================ */
.admin-tag { display: inline-flex; align-items: center; gap: 5px; padding: 2px 10px; border-radius: var(--radius-pill); font-size: 12px; font-weight: 500; background: var(--primary-soft); color: var(--primary-ink); }
.admin-tag-off { background: var(--surface-3); color: var(--text-2); }
.admin-tag-warn { background: var(--warn-soft); color: var(--warn); }
.au-badge { display: inline-flex; align-items: center; gap: 6px; padding: 2px 10px; border-radius: var(--radius-pill); font-size: 12px; font-weight: 500; }
.au-badge::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: currentColor; flex: none; }
.au-badge.ok { background: var(--ok-soft); color: var(--ok); }
.au-badge.warn { background: var(--warn-soft); color: var(--warn); }
.au-badge.err { background: var(--danger-soft); color: var(--danger); }
.au-badge.info { background: var(--info-soft); color: var(--info); }
.au-badge.neutral { background: var(--surface-3); color: var(--text-2); }

/* ============================================================
 * 11. 反馈：警告 / 空态 / 骨架 / Toast
 * ============================================================ */
.admin-msg, .au-alert {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin: 0 0 16px;
  padding: 11px 14px;
  border-radius: var(--radius);
  font-size: 13px;
  line-height: 1.6;
  border: 1px solid transparent;
}
.admin-msg svg, .au-alert svg { width: 16px; height: 16px; flex: none; margin-top: 2px; }
.admin-msg-ok, .au-alert.ok { background: var(--ok-soft); border-color: var(--ok); color: var(--ok); }
.admin-msg-err, .au-alert.err { background: var(--danger-soft); border-color: var(--danger); color: var(--danger); }
.au-alert.warn { background: var(--warn-soft); border-color: var(--warn); color: var(--warn); }
.au-alert.info { background: var(--info-soft); border-color: var(--info); color: var(--info); }
.au-alert-body { min-width: 0; }
.au-alert-title { font-weight: 700; }

.au-empty { display: grid; justify-items: center; gap: 9px; padding: 44px 24px; text-align: center; color: var(--text-2); }
.au-empty-ic { display: grid; place-items: center; width: 56px; height: 56px; border-radius: var(--radius); background: var(--surface-2); border: 1px dashed var(--line-2); color: var(--text-3); }
.au-empty-ic svg { width: 24px; height: 24px; }
.au-empty-title { font-size: 14px; font-weight: 600; color: var(--text); }
.au-empty-desc { font-size: 12.5px; max-width: 360px; line-height: 1.7; }

.au-skel { border-radius: var(--radius-sm); background: var(--surface-3); position: relative; overflow: hidden; }
.au-skel::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, transparent 20%, var(--primary-soft) 45%, transparent 70%);
  background-size: 200% 100%;
  animation: au-shimmer 1.3s infinite;
}
@keyframes au-shimmer { to { background-position: -200% 0; } }
.au-skel-row { display: flex; align-items: center; gap: 14px; padding: 13px 16px; border-bottom: 1px solid var(--line); }
.au-skel-row:last-child { border-bottom: 0; }

.au-toast-root { position: fixed; top: 18px; left: 50%; transform: translateX(-50%); z-index: 400; display: grid; gap: 8px; justify-items: center; pointer-events: none; }
.au-toast {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 10px 16px;
  border-radius: var(--radius);
  background: var(--surface);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-md);
  font-size: 13px;
  font-weight: 600;
  animation: au-toast-in 0.18s var(--ease);
}
.au-toast svg { width: 16px; height: 16px; flex: none; }
.au-toast.ok { color: var(--ok); }
.au-toast.err { color: var(--danger); }
.au-toast.info { color: var(--info); }
.au-toast.leaving { animation: au-toast-out 0.18s var(--ease) forwards; }
@keyframes au-toast-in { from { opacity: 0; transform: translateY(-8px); } to { opacity: 1; transform: none; } }
@keyframes au-toast-out { to { opacity: 0; transform: translateY(-6px); } }

/* ============================================================
 * 12. 页签 / 开关 / 分页
 * ============================================================ */
/* 胶囊页签（仪表盘等轻场景） */
.au-tabs { display: inline-flex; gap: 4px; padding: 3px; border-radius: var(--radius-pill); background: var(--surface-3); border: 1px solid var(--line); }
.au-tab { padding: 6px 15px; border: 0; border-radius: var(--radius-pill); background: transparent; font: inherit; font-size: 12.5px; font-weight: 500; color: var(--text-2); cursor: pointer; transition: color var(--dur), background var(--dur); }
.au-tab:hover { color: var(--primary-ink); }
.au-tab.on { background: var(--surface); color: var(--primary-ink); font-weight: 600; box-shadow: var(--shadow-sm); }

/* 区块页签（系统设置：整行底边框，当前项主色 + 下划线） */
.au-tabs-block { display: flex; gap: 2px; flex-wrap: wrap; border-bottom: 1px solid var(--line); margin-bottom: 20px; }
.au-tabs-block .au-tab {
  padding: 9px 15px;
  border: 0;
  border-bottom: 2px solid transparent;
  border-radius: var(--radius-sm) var(--radius-sm) 0 0;
  background: transparent;
  font-size: 13.5px;
  color: var(--text-2);
}
.au-tabs-block .au-tab:hover { color: var(--primary-ink); background: var(--primary-soft); }
.au-tabs-block .au-tab.on { color: var(--primary-ink); font-weight: 600; border-bottom-color: var(--primary); background: transparent; box-shadow: none; }

/* 开关 */
.au-switch { position: relative; display: inline-flex; align-items: center; gap: 9px; cursor: pointer; font-size: 13px; font-weight: 500; color: var(--text); }
.au-switch input { position: absolute; opacity: 0; width: 0; height: 0; }
.au-switch-track { width: 38px; height: 22px; border-radius: var(--radius-pill); background: var(--line-2); transition: background var(--dur); flex: none; }
.au-switch-track::after { content: ""; display: block; width: 16px; height: 16px; margin: 3px; border-radius: 50%; background: #fff; box-shadow: 0 1px 2px rgba(0, 0, 0, 0.25); transition: transform var(--dur) var(--ease); }
.au-switch input:checked + .au-switch-track { background: var(--primary); }
.au-switch input:checked + .au-switch-track::after { transform: translateX(16px); }
.au-switch input:focus-visible + .au-switch-track { box-shadow: 0 0 0 3px var(--primary-soft); }

/* 分页 */
.au-pager { display: flex; align-items: center; gap: 5px; justify-content: flex-end; flex-wrap: wrap; }
.au-pager a, .au-pager span {
  min-width: 30px;
  height: 30px;
  display: inline-grid;
  place-items: center;
  padding: 0 8px;
  border-radius: var(--radius-sm);
  font-size: 12.5px;
  font-weight: 500;
  color: var(--text-2);
  border: 1px solid transparent;
  transition: color var(--dur), background var(--dur), border-color var(--dur);
}
.au-pager a:hover { background: var(--primary-soft); color: var(--primary-ink); }
.au-pager .on { background: var(--primary); color: #fff; font-weight: 600; }
.au-pager .off { color: var(--text-3); cursor: default; }
.au-pager .au-pager-jump { color: var(--text-3); border-color: var(--line); cursor: default; }

/* ============================================================
 * 13. 详情抽屉 + 确认弹窗
 * ============================================================ */
.au-overlay { position: fixed; inset: 0; z-index: 200; background: rgba(15, 25, 45, 0.45); animation: au-fade 0.15s; }
@keyframes au-fade { from { opacity: 0; } to { opacity: 1; } }

.au-drawer {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  z-index: 210;
  width: min(460px, 100%);
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border-left: 1px solid var(--line);
  box-shadow: var(--shadow-pop);
  animation: au-slide-in 0.2s var(--ease);
}
@keyframes au-slide-in { from { transform: translateX(20px); opacity: 0.5; } to { transform: none; opacity: 1; } }
.au-drawer-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 15px 20px; border-bottom: 1px solid var(--line); }
.au-drawer-head h3 { font-size: 15px; font-weight: 700; }
.au-drawer-x { display: grid; place-items: center; width: 30px; height: 30px; border: 0; border-radius: var(--radius-sm); background: transparent; color: var(--text-2); font-size: 18px; cursor: pointer; transition: background var(--dur), color var(--dur); }
.au-drawer-x:hover { background: var(--primary-soft); color: var(--primary-ink); }
.au-drawer-body { flex: 1; overflow-y: auto; padding: 18px 20px; }
.au-drawer-foot { padding: 12px 20px; border-top: 1px solid var(--line); display: flex; gap: 8px; justify-content: flex-end; }

/* 详情描述列表 */
.au-desc { display: grid; gap: 0; }
.au-desc-row { display: grid; grid-template-columns: 100px 1fr; gap: 12px; padding: 10px 0; border-bottom: 1px dashed var(--line); font-size: 13px; }
.au-desc-row:last-child { border-bottom: 0; }
.au-desc-k { color: var(--text-2); font-weight: 500; }
.au-desc-v { min-width: 0; word-break: break-word; white-space: pre-wrap; }
.au-desc-v img { max-width: 100%; border-radius: var(--radius-sm); border: 1px solid var(--line); }

.au-modal-root { position: fixed; inset: 0; z-index: 300; display: grid; place-items: center; padding: 24px; }
/* 层级铁律：.au-overlay 是 fixed 兄弟节点，静态弹窗会被它盖住发虚，
   必须显式抬到 210（与 .au-drawer 同级） */
.au-modal {
  position: relative;
  z-index: 210;
  width: min(420px, 100%);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-pop);
  padding: 22px;
  animation: au-pop 0.18s var(--ease);
}
@keyframes au-pop { from { opacity: 0; transform: translateY(10px) scale(0.99); } to { opacity: 1; transform: none; } }
.au-modal-ic { display: grid; place-items: center; width: 42px; height: 42px; border-radius: var(--radius); margin-bottom: 13px; }
.au-modal.confirm .au-modal-ic { background: var(--warn-soft); color: var(--warn); }
.au-modal.danger .au-modal-ic { background: var(--danger-soft); color: var(--danger); }
.au-modal-ic svg { width: 21px; height: 21px; }
.au-modal h3 { font-size: 15.5px; font-weight: 700; }
.au-modal p { margin-top: 5px; color: var(--text-2); font-size: 13px; line-height: 1.7; }
.au-modal-actions { display: flex; gap: 8px; justify-content: flex-end; margin-top: 20px; }

/* ============================================================
 * 14. 工具类
 * ============================================================ */
.au-grid { display: grid; gap: 16px; }
.au-grid.cols-2 { grid-template-columns: 1fr 1fr; }
.au-grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
.au-row { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.au-muted { color: var(--text-2); }
.au-mono { font-family: var(--font-mono); }
.au-right { margin-left: auto; }
.au-nowrap { white-space: nowrap; }
.au-hidden { display: none !important; }

/* ============================================================
 * 15. 图片管理（#life 多图 / 首屏图片）
 * ============================================================ */
.admin-img-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(128px, 1fr)); gap: 12px; }
.admin-img-item { position: relative; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: var(--surface); }
.admin-img-item img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; display: block; }
.admin-img-item label { display: flex; align-items: center; gap: 6px; padding: 7px 10px; font-size: 12px; color: var(--text-2); cursor: pointer; border-top: 1px solid var(--line); }
.admin-img-item input[type="checkbox"] { accent-color: var(--primary); }

/* ---- 图片上传（点击/拖拽 + 预览 + 拖拽排序） ---- */
.au-upload { display: grid; gap: 12px; }
/* JS 就绪后才隐藏原生 file 控件；无 JS 时仍可直接选择文件 */
.au-upload.is-ready .au-file { display: none; }
.au-drop {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 20px 16px;
  border: 2px dashed var(--line-2);
  border-radius: var(--radius);
  background: var(--surface-2);
  color: var(--text-2);
  text-align: center;
  cursor: pointer;
  transition: border-color var(--dur), background var(--dur), color var(--dur);
}
.au-drop:hover,
.au-drop:focus-visible,
.au-drop.is-over {
  border-color: var(--primary);
  background: var(--primary-soft);
  color: var(--primary-ink);
  outline: none;
}
.au-drop svg { width: 22px; height: 22px; }
.au-drop strong { font-size: 13.5px; font-weight: 600; color: var(--text); }
.au-drop.is-over strong { color: var(--primary-ink); }
.au-drop span { font-size: 12px; color: var(--text-3); }
.au-thumbs { display: flex; flex-wrap: wrap; gap: 10px; }
.au-thumb {
  position: relative;
  width: 96px;
  height: 96px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--surface-2);
  touch-action: none;
  cursor: grab;
  transition: box-shadow var(--dur), opacity var(--dur);
}
.au-thumb img { width: 100%; height: 100%; object-fit: cover; display: block; pointer-events: none; }
.au-thumb.is-dragging { opacity: 0.55; cursor: grabbing; box-shadow: 0 6px 16px rgba(15, 23, 42, 0.18); }
.au-thumb-x {
  position: absolute;
  top: 4px;
  right: 4px;
  display: grid;
  place-items: center;
  width: 20px;
  height: 20px;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: rgba(15, 23, 42, 0.62);
  color: #fff;
  font-size: 14px;
  line-height: 1;
  cursor: pointer;
  opacity: 0;
  transition: opacity var(--dur), background var(--dur);
}
.au-thumb:hover .au-thumb-x,
.au-thumb-x:focus-visible { opacity: 1; }
.au-thumb-x:hover { background: var(--danger); }
@media (hover: none) { .au-thumb-x { opacity: 1; } }
/* 单图（封面）：横版预览 */
.au-upload[data-au-mode="single"] .au-thumb { width: 168px; height: 105px; }
.au-upload-hint { font-size: 12px; color: var(--text-3); line-height: 1.7; }
/* 上传区：压缩为 WebP 勾选框 */
.au-webp { display: inline-flex; align-items: center; gap: 6px; font-size: 12.5px; color: var(--text-3); cursor: pointer; user-select: none; }
.au-webp input[type="checkbox"] { width: 15px; height: 15px; accent-color: var(--primary); margin: 0; }

/* 微信二维码：本地文件选择（原生 file 控件在部分主题 / 缩放下几乎看不见，改为按钮 + 文件名） */
.admin-qr-upload { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.admin-qr-pick { position: relative; overflow: hidden; }
.admin-qr-pick input[type="file"] {
  position: absolute;
  width: 1px;
  height: 1px;
  min-height: 0;
  padding: 0;
  border: 0;
  opacity: 0;
  pointer-events: none;
}
.admin-qr-name {
  min-width: 0;
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 12px;
  color: var(--text-3);
}

.hero-img-row { display: flex; align-items: center; gap: 16px; padding: 12px 0; border-top: 1px dashed var(--line); }
.hero-img-row:first-of-type { border-top: 0; padding-top: 0; }
.hero-img-preview {
  width: 84px;
  height: 84px;
  flex: 0 0 84px;
  object-fit: contain;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background:
    linear-gradient(45deg, rgba(15, 30, 60, 0.045) 25%, transparent 25%, transparent 75%, rgba(15, 30, 60, 0.045) 75%) 0 0 / 14px 14px,
    linear-gradient(45deg, rgba(15, 30, 60, 0.045) 25%, transparent 25%, transparent 75%, rgba(15, 30, 60, 0.045) 75%) 7px 7px / 14px 14px,
    var(--surface);
}
.hero-img-fields { flex: 1; min-width: 0; display: grid; gap: 8px; }
.hero-img-title { margin: 0; font-size: 13px; font-weight: 600; color: var(--text); }

.hero-summary { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 10px; margin-top: 12px; padding: 12px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface-2); }
.hero-summary-item { display: flex; align-items: center; gap: 10px; min-width: 0; }
.hero-summary-item img { width: 42px; height: 42px; flex: 0 0 42px; object-fit: contain; border-radius: var(--radius-sm); border: 1px solid var(--line); background: var(--surface); }
.hero-summary-text { min-width: 0; display: grid; gap: 2px; }
.hero-summary-text b { font-size: 12.5px; color: var(--text); font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.hero-summary-text span { font-size: 11.5px; color: var(--text-2); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

.hero-actions { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.hero-act { min-height: 32px; padding: 0 13px; font-size: 12.5px; }
.hero-file-info { margin: 0; font-size: 12px; color: var(--text-2); }
.hero-file-info.is-err { color: var(--danger); }
.hero-file-info:empty { display: none; }

/* ---- 图片选择弹层（hero-picker.js 自管交互，此处只定样式） ---- */
body.hero-picker-open { overflow: hidden; }
.hero-picker { position: fixed; inset: 0; z-index: 250; display: grid; place-items: center; padding: 20px; }
.hero-picker[hidden] { display: none; }
.hero-picker-mask { position: absolute; inset: 0; background: rgba(15, 25, 45, 0.45); }
.hero-picker-dialog {
  position: relative;
  width: min(720px, 100%);
  max-height: min(76vh, 620px);
  display: flex;
  flex-direction: column;
  padding: 16px 18px 14px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: var(--surface);
  box-shadow: var(--shadow-pop);
}
.hero-picker-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 10px; }
.hero-picker-head h4 { margin: 0; font-size: 14.5px; font-weight: 700; }
.hero-picker-x { width: 30px; height: 30px; border: 0; border-radius: var(--radius-sm); background: transparent; color: var(--text-2); font-size: 20px; line-height: 1; cursor: pointer; transition: background var(--dur), color var(--dur); }
.hero-picker-x:hover { background: var(--primary-soft); color: var(--primary-ink); }
.hero-picker-search { margin-bottom: 10px; }
.hero-picker-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(104px, 1fr)); gap: 10px; padding: 2px; overflow-y: auto; }
.hero-pick-item {
  display: grid;
  gap: 6px;
  padding: 8px;
  text-align: center;
  color: var(--text-2);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  cursor: pointer;
  transition: border-color var(--dur), background var(--dur);
}
.hero-pick-item[hidden] { display: none; }
.hero-pick-item:hover { border-color: var(--primary); background: var(--primary-soft); }
.hero-pick-item img { width: 100%; height: 68px; object-fit: contain; }
.hero-pick-item span { font-size: 11px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.hero-picker-empty { margin: 16px 0; text-align: center; font-size: 13px; color: var(--text-2); }
.hero-picker-foot { margin: 10px 0 0; font-size: 12px; color: var(--text-3); }
@media (max-width: 620px) {
  .hero-picker { padding: 12px; }
  .hero-picker-grid { grid-template-columns: repeat(auto-fill, minmax(84px, 1fr)); }
  .hero-pick-item img { height: 54px; }
  .hero-img-row { flex-direction: column; align-items: stretch; }
  .hero-img-preview { width: 64px; height: 64px; flex-basis: 64px; }
}

/* ============================================================
 * 16. 登录页（庄严稳重的深蓝商务风，去掉装饰光斑）
 * ============================================================ */
.admin-login-body {
  position: relative;
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 40px 20px;
  background:
    linear-gradient(180deg, var(--primary) 0%, #174D8C 42%, var(--bg) 42%, var(--bg) 100%);
}
/* 旧版装饰光斑：商务后台不需要，直接移除 */
.admin-login-orb { display: none; }

.admin-login-card {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 300px minmax(0, 1fr);
  width: min(820px, 100%);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--surface);
  border: 1px solid var(--line);
  box-shadow: 0 24px 60px -18px rgba(15, 32, 66, 0.35);
}

/* 左栏：品牌 + 说明 */
.admin-login-aside {
  display: flex;
  flex-direction: column;
  gap: 22px;
  padding: 36px 30px;
  color: rgba(255, 255, 255, 0.92);
  background:
    linear-gradient(160deg, var(--primary) 0%, #16427A 100%);
}
.admin-login-aside::before, .admin-login-aside::after { display: none; }
.admin-login-brand { display: flex; align-items: center; gap: 11px; }
.admin-login-mark {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  flex-shrink: 0;
  border-radius: var(--radius);
  border: 1px solid rgba(255, 255, 255, 0.35);
  background: rgba(255, 255, 255, 0.16);
  font-size: 18px;
  font-weight: 800;
}
.admin-login-brand-text { display: grid; line-height: 1.4; }
.admin-login-brand-text strong { font-size: 15px; font-weight: 700; }
.admin-login-brand-text small { font-size: 12px; opacity: 0.75; }
.admin-login-aside-title { margin-top: auto; font-size: 19px; font-weight: 700; line-height: 1.6; }
.admin-login-feats { display: grid; gap: 9px; font-size: 12.5px; line-height: 1.6; }
.admin-login-feats li { display: flex; align-items: flex-start; gap: 8px; opacity: 0.85; }
.admin-login-feats li::before { content: ""; flex-shrink: 0; width: 5px; height: 5px; margin-top: 7px; border-radius: 50%; background: currentColor; }
.admin-login-aside-foot { font-size: 11px; letter-spacing: 0.1em; opacity: 0.6; }

/* 右栏：表单 */
.admin-login-panel { display: flex; flex-direction: column; padding: 38px 40px 26px; }
.admin-login-eyebrow {
  align-self: flex-start;
  padding: 3px 10px;
  border-radius: var(--radius-pill);
  background: var(--primary-soft);
  color: var(--primary-ink);
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.14em;
}
.admin-login-title { margin-top: 12px; font-size: 24px; font-weight: 800; letter-spacing: -0.01em; }
.admin-login-sub { margin-top: 5px; color: var(--text-2); font-size: 13px; }
.admin-login-form { margin-top: 20px; }
.admin-login-form .admin-msg { margin: 0 0 14px; }

.login-field { display: grid; gap: 6px; }
.login-field-label { font-size: 13px; font-weight: 600; color: var(--text); }
.login-control { position: relative; display: flex; align-items: center; }
.login-control-icon { position: absolute; left: 12px; width: 16px; height: 16px; color: var(--text-3); pointer-events: none; }
.login-input {
  width: 100%;
  height: 42px;
  padding: 0 40px 0 38px;
  border: 1px solid var(--line-2);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 14px;
  transition: border-color var(--dur), box-shadow var(--dur);
}
.login-input::placeholder { color: var(--text-3); }
.login-input:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-soft); }
.login-input:disabled { opacity: 0.6; cursor: not-allowed; }

.login-eye {
  position: absolute;
  right: 6px;
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border-radius: var(--radius-sm);
  color: var(--text-3);
  cursor: pointer;
  transition: color var(--dur), background var(--dur);
}
.login-eye:hover { color: var(--primary-ink); background: var(--primary-soft); }
.login-eye:disabled { opacity: 0.4; cursor: not-allowed; }
.login-eye svg { width: 16px; height: 16px; }
.login-eye .icon-eye-off, .login-eye.is-on .icon-eye { display: none; }
.login-eye.is-on .icon-eye-off { display: block; }

.login-captcha { display: flex; align-items: stretch; gap: 10px; }
.login-captcha .login-control { flex: 1; min-width: 0; }
.login-captcha-btn {
  position: relative;
  flex-shrink: 0;
  width: 150px;
  height: 42px;
  padding: 0;
  overflow: hidden;
  border: 1px solid var(--line-2);
  border-radius: var(--radius);
  background: var(--surface);
  cursor: pointer;
  transition: border-color var(--dur), box-shadow var(--dur);
}
.login-captcha-btn img { width: 100%; height: 100%; object-fit: cover; }
.login-captcha-btn:hover { border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-soft); }
.login-captcha-btn:disabled { opacity: 0.6; cursor: not-allowed; }
.login-captcha-refresh { position: absolute; inset: 0; display: grid; place-items: center; color: var(--primary-ink); background: rgba(255, 255, 255, 0.66); opacity: 0; transition: opacity var(--dur); }
.login-captcha-refresh svg { width: 18px; height: 18px; }
.login-captcha-btn:hover .login-captcha-refresh, .login-captcha-btn.is-loading .login-captcha-refresh { opacity: 1; }
.login-captcha-btn.is-loading .login-captcha-refresh svg { animation: admin-login-spin 0.8s linear infinite; }
@keyframes admin-login-spin { to { transform: rotate(360deg); } }

.login-submit {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  height: 44px;
  margin-top: 4px;
  border: 0;
  border-radius: var(--radius);
  background: var(--primary);
  color: #fff;
  font-family: var(--font-sans);
  font-size: 14.5px;
  font-weight: 700;
  cursor: pointer;
  transition: background var(--dur);
}
.login-submit svg { width: 17px; height: 17px; }
.login-submit:hover:not(:disabled) { background: var(--primary-hover); }
.login-submit:active:not(:disabled) { background: var(--primary-active); }
.login-submit:disabled { opacity: 0.55; cursor: not-allowed; }

.admin-login-notice { padding: 9px 13px; border-radius: var(--radius); background: var(--primary-soft); color: var(--primary-ink); font-size: 12.5px; line-height: 1.7; }
.admin-login-tip { margin-top: 12px; color: var(--text-2); font-size: 12.5px; line-height: 1.75; }
.admin-login-tip strong { color: var(--text); font-weight: 600; }

.admin-login-foot { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-top: auto; padding-top: 22px; font-size: 13px; }
.admin-login-back { color: var(--text-2); transition: color var(--dur); }
.admin-login-back:hover { color: var(--primary-ink); }
.admin-login-mode {
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  border: 1px solid var(--line-2);
  border-radius: var(--radius);
  color: var(--text-2);
  background: var(--surface);
  cursor: pointer;
  transition: color var(--dur), border-color var(--dur), background var(--dur);
}
.admin-login-mode:hover { color: var(--primary-ink); border-color: var(--primary); background: var(--primary-soft); }
.admin-login-mode svg { width: 16px; height: 16px; }

/* ============================================================
 * 17. 响应式（≤900px：侧边转抽屉；≤560px：紧凑模式）
 * ============================================================ */
/* 中宽屏：不再限制内容宽度，同时收窄侧栏与内边距，避免左右大留白 */
@media (max-width: 1400px) {
  .admin-main { max-width: 100%; }
}
@media (max-width: 1200px) {
  .admin-shell { --sb-w: 204px; --pad: 16px; --gap: 14px; }
  .admin-panel { padding: 14px 16px; }
  .admin-table th, .admin-table td { padding: 9px 10px; }
  .admin-page-head h2 { font-size: 19px; }
}
@media (max-width: 1024px) {
  .admin-main { max-width: 100%; }
}
@media (max-width: 900px) {
  .admin-shell { --pad: 16px; }
  /* 侧边栏 → 左侧抽屉 */
  .admin-sidebar {
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    height: 100%;
    width: var(--sb-w);
    transform: translateX(-102%);
    transition: transform 0.25s var(--ease);
    box-shadow: var(--shadow-pop);
    z-index: 220;
  }
  .admin-shell.is-drawer-open .admin-sidebar { transform: none; }
  .admin-drawer-x {
    display: grid;
    place-items: center;
    width: 30px;
    height: 30px;
    flex: none;
    margin-left: auto;
    border: 0;
    border-radius: var(--radius-sm);
    background: var(--surface-2);
    color: var(--text-2);
    font-size: 17px;
    cursor: pointer;
    transition: background var(--dur), color var(--dur);
  }
  .admin-drawer-x:hover { background: var(--primary-soft); color: var(--primary-ink); }
  .admin-drawer-mask {
    display: block;
    position: fixed;
    inset: 0;
    z-index: 200;
    background: rgba(15, 25, 45, 0.45);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s;
  }
  .admin-shell.is-drawer-open .admin-drawer-mask { opacity: 1; pointer-events: auto; }
  .admin-burger {
    display: grid;
    place-items: center;
    width: 34px;
    height: 34px;
    flex: none;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--surface);
    color: var(--text);
    cursor: pointer;
    transition: color var(--dur), border-color var(--dur);
  }
  .admin-burger:hover { color: var(--primary-ink); border-color: var(--primary); }
  .admin-burger svg { width: 18px; height: 18px; }
  /* 折叠按钮在抽屉形态下无意义（侧边本身就是抽屉） */
  .admin-collapse-btn { display: none; }
  .admin-shell.is-collapsed .admin-sidebar { width: var(--sb-w); }
  .admin-shell.is-collapsed .admin-brand-text,
  .admin-shell.is-collapsed .admin-nav-group,
  .admin-shell.is-collapsed .admin-nav-text,
  .admin-shell.is-collapsed .admin-nav-caret { display: revert; }
  .admin-shell.is-collapsed .admin-sidebar-head { justify-content: flex-start; padding: 0 14px 0 16px; }
  .admin-shell.is-collapsed .admin-brand { justify-content: flex-start; }
  .admin-shell.is-collapsed .admin-nav-link { justify-content: flex-start; padding: 9px 10px; }
  .admin-shell.is-collapsed .admin-nav-sub { display: grid; }
  .admin-shell.is-collapsed .admin-nav-sub.is-flyout { display: none; }
  .admin-topbar-title { display: none; }
  .au-crumb { font-size: 12.5px; }
  .admin-form-grid { grid-template-columns: 1fr; }
  .au-grid.cols-2, .au-grid.cols-3 { grid-template-columns: 1fr; }
  .admin-stat-grid { grid-template-columns: 1fr 1fr; }
  .admin-page-head h2 { font-size: 18px; }
  /* 登录卡：单栏 */
  .admin-login-body { padding: 24px 16px; background: linear-gradient(180deg, var(--primary) 0%, #174D8C 22%, var(--bg) 22%, var(--bg) 100%); }
  .admin-login-card { grid-template-columns: 1fr; width: min(440px, 100%); }
  .admin-login-aside { padding: 24px 26px; gap: 0; }
  .admin-login-aside-title, .admin-login-feats, .admin-login-aside-foot { display: none; }
  .admin-login-panel { padding: 28px 26px 22px; }
  .admin-login-title { font-size: 21px; }
}
@media (max-width: 560px) {
  .admin-stat-grid { grid-template-columns: 1fr; }
  .admin-table .col-ops { width: auto; }
  .au-drawer { width: 100%; }
  .au-user-name { display: none; }
  .au-modal { padding: 18px; }
  .au-toolbar .au-search { max-width: none; }
}

/* 尊重「减少动效」偏好 */
@media (prefers-reduced-motion: reduce) {
  .admin-shell *, .admin-shell *::before, .admin-shell *::after,
  .admin-login-card, .admin-login-card *::before, .admin-login-card *::after {
    animation-duration: 0.001s !important;
    transition-duration: 0.001s !important;
  }
}