/* ============================================================
   Roblox 题库管理站 · 视觉系统（NewAPI 规格复刻）
   令牌体系：浅/深两套，html.dark 切换；禁止硬编码颜色
   ============================================================ */
:root {
  --radius: 1rem; --radius-lg: 12px; --radius-md: 8px; --radius-sm: 6px;
  --background: #FFFFFF; --foreground: #0A0A0A;
  --card: #FFFFFF; --popover: #FFFFFF;
  --secondary: #EEEEEE; --secondary-foreground: #004F8B;
  --muted: #F5F5F5; --muted-foreground: #606060;
  --border: #E8E8E8; --input: #E8E8E8;
  --ring: rgba(62, 164, 236, .35);
  --primary: #3EA4EC; --primary-hover: rgba(62, 164, 236, .8); --primary-foreground: #FFFFFF;
  --success: #22C55E; --danger: #EF4444; --warning: #F59E0B; --info: #3EA4EC;
  --violet: #A855F7;
  --gradient: linear-gradient(to right, #60A5FA, #A78BFA, #A855F7);
  --glass-bg: rgba(255, 255, 255, .72);
  --glass-ring: rgba(0, 0, 0, .06);
  --shadow-nav: 0 2px 16px -6px rgba(0, 0, 0, .08);
  --shadow-card: 0 20px 50px -25px rgba(15, 23, 42, .18);
  --skeleton-base: #EEEEEE; --skeleton-highlight: rgba(255, 255, 255, .8);
  --font: "Public Sans", ui-sans-serif, system-ui, -apple-system, "PingFang SC", "Noto Sans SC", "Microsoft YaHei", sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
}
.dark {
  --background: #1E1E1E; --foreground: #F3F3F3;
  --card: #2A2A2A; --popover: #2F2F2F;
  --secondary: #373737; --secondary-foreground: #9EC7F0;
  --muted: #2F2F2F; --muted-foreground: #B7B7B7;
  --border: rgba(255, 255, 255, .18); --input: rgba(255, 255, 255, .24);
  --ring: rgba(14, 114, 188, .5);
  --primary: #0E72BC; --primary-hover: rgba(14, 114, 188, .85);
  --glass-bg: rgba(30, 30, 30, .68);
  --glass-ring: rgba(255, 255, 255, .07);
  --shadow-nav: 0 2px 16px -6px rgba(0, 0, 0, .4);
  --shadow-card: 0 20px 60px -25px rgba(0, 0, 0, .7);
  --skeleton-base: #2F2F2F; --skeleton-highlight: rgba(255, 255, 255, .06);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font); background: var(--background); color: var(--foreground);
  min-height: 100vh; transition: background .3s, color .3s; font-size: 14px; line-height: 1.55;
}
::selection { background: rgba(62, 164, 236, .25); }
a { color: var(--primary); text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
input, select, textarea { font-family: inherit; font-size: 14px; color: var(--foreground); }

/* ---------- 背景氛围：1px 网格 + oklch 径向光晕 ---------- */
.ambient { position: fixed; inset: 0; z-index: -1; pointer-events: none; overflow: hidden; }
.ambient::before {
  content: ""; position: absolute; inset: 0;
  background-image: linear-gradient(to right, var(--border) 1px, transparent 1px),
                    linear-gradient(to bottom, var(--border) 1px, transparent 1px);
  background-size: 4rem 4rem; opacity: .08;
  -webkit-mask-image: radial-gradient(ellipse 60% 50% at 50% 30%, #000 40%, transparent 100%);
          mask-image: radial-gradient(ellipse 60% 50% at 50% 30%, #000 40%, transparent 100%);
}
.ambient::after {
  content: ""; position: absolute; inset: 0;
  background:
    radial-gradient(60% 50% at 20% 20%, oklch(.72 .18 250 / .8) 0%, transparent 70%),
    radial-gradient(50% 40% at 80% 15%, oklch(.65 .15 200 / .6) 0%, transparent 70%),
    radial-gradient(40% 35% at 40% 80%, oklch(.70 .12 280 / .4) 0%, transparent 70%);
  opacity: .22; transition: opacity .3s;
}
.dark .ambient::after { opacity: .10; }

/* ---------- 滚动进度条 ---------- */
.scroll-progress {
  position: fixed; top: 0; left: 0; height: 2px; width: 100%; z-index: 90;
  background: transparent; pointer-events: none;
}
.scroll-progress i {
  display: block; height: 100%; width: 0%;
  background: linear-gradient(to right, #60A5FA, #A78BFA, #A855F7);
  box-shadow: 0 0 10px rgba(167, 139, 250, .6);
}
.scroll-progress i::after {
  content: ""; position: absolute; top: 0; right: -6px; height: 2px; width: 10px;
  background: inherit; transform: rotate(2deg);
}

/* ---------- 顶部玻璃胶囊导航 ---------- */
.nav-wrap { position: fixed; top: 0; left: 0; right: 0; z-index: 80; display: flex; justify-content: center; padding: 12px 16px 0; }
.glass-nav {
  position: relative;
  max-width: 64rem; width: 100%;
  display: flex; align-items: center; gap: 4px;
  padding: 8px 12px; border-radius: 999px;
  /* 默认（页面顶部）：透明融入背景，无玻璃块。
     注意：背景/模糊由 ::before 承担——backdrop-filter 在自身元素上会使其成为
     fixed 子元素(.nav-links 移动端抽屉)的定位包含块，导致抽屉 inset:0 错位 */
  background: transparent;
  border: 1px solid transparent;
  box-shadow: none;
}
.glass-nav::before {
  content: ""; position: absolute; inset: 0; border-radius: inherit;
  background: transparent;
  -webkit-backdrop-filter: blur(0); backdrop-filter: blur(0);
  border: 1px solid transparent;
  box-shadow: none;
  z-index: -1;
  transition: background .5s cubic-bezier(.16, 1, .3, 1),
              -webkit-backdrop-filter .5s cubic-bezier(.16, 1, .3, 1),
              backdrop-filter .5s cubic-bezier(.16, 1, .3, 1),
              border-color .5s cubic-bezier(.16, 1, .3, 1),
              box-shadow .5s cubic-bezier(.16, 1, .3, 1);
}
.glass-nav.scrolled::before {
  background: var(--glass-bg);
  -webkit-backdrop-filter: blur(40px); backdrop-filter: blur(40px);
  box-shadow: var(--shadow-nav), 0 0 0 .5px var(--glass-ring);
  border-color: var(--glass-ring);
}
.brand { display: flex; align-items: center; gap: 9px; padding: 4px 8px 4px 6px; margin-right: 2px; }
.brand-logo {
  width: 28px; height: 28px; border-radius: 8px;
  background: var(--gradient); display: grid; place-items: center;
  color: #fff; font-weight: 700; font-size: 13px; font-family: var(--font-mono);
  box-shadow: 0 0 0 .5px rgba(255, 255, 255, .4);
}
.brand-name { font-size: 14px; font-weight: 600; letter-spacing: -.01em; white-space: nowrap; }
/* 品牌图标（Astudlox SVG，白底圆角，随容器自适应） */
.brand-logo img { display: block; width: 100%; height: 100%; object-fit: contain; border-radius: 8px; background: #fff; padding: 2px; }

/* ===== 一级分类菜单 + 二级下拉 ===== */
.nav-group { position: relative; }
.nav-group > .nav-link .chev { transition: transform .25s cubic-bezier(.16, 1, .3, 1); margin-left: 1px; }
.nav-group.open > .nav-link {
  color: var(--secondary-foreground);
  background: color-mix(in srgb, var(--secondary) 70%, transparent);
  font-weight: 600;
}
.nav-group.open > .nav-link .chev { transform: rotate(180deg); }
.drop {
  position: absolute; top: calc(100% + 10px); left: 50%;
  min-width: 176px; padding: 6px;
  background: var(--popover);
  border: 1px solid color-mix(in srgb, var(--border) 60%, transparent);
  border-radius: 14px; box-shadow: var(--shadow-card);
  opacity: 0; visibility: hidden;
  transform: translateX(-50%) translateY(-8px) scale(.98);
  transition: opacity .22s cubic-bezier(.16, 1, .3, 1), transform .22s cubic-bezier(.16, 1, .3, 1), visibility .22s;
  z-index: 95;
}
.drop.open { opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0) scale(1); }
.drop-item {
  display: flex; align-items: center; gap: 8px;
  padding: 9px 12px; border-radius: 9px;
  font-size: 13px; color: var(--muted-foreground); white-space: nowrap;
  transition: background .18s, color .18s;
}
.drop-item:hover { background: var(--muted); color: var(--foreground); }
.drop-item.active { color: var(--secondary-foreground); background: color-mix(in srgb, var(--secondary) 70%, transparent); font-weight: 600; }
.nav-links { display: flex; align-items: center; gap: 2px; flex: 1; flex-wrap: wrap; }
.nav-link {
  display: flex; align-items: center; gap: 6px; padding: 6px 11px; border-radius: 999px;
  font-size: 13px; font-weight: 500; color: var(--muted-foreground);
  transition: color .2s, background .2s; white-space: nowrap;
}
.nav-link .ic { width: 14px; height: 14px; }
.nav-link:hover { color: var(--foreground); background: var(--secondary); }
.nav-link.active { color: var(--secondary-foreground); background: color-mix(in srgb, var(--secondary) 70%, transparent); font-weight: 600; }
.nav-actions { display: flex; align-items: center; gap: 4px; margin-left: auto; }
/* 品牌与右侧操作区（含汉堡）层叠高于移动端抽屉(79)：抽屉打开时仍可点击关闭/返回 */
.glass-nav > .brand, .glass-nav > .nav-actions { position: relative; z-index: 82; }
.icon-btn {
  width: 34px; height: 34px; border-radius: 10px; display: grid; place-items: center;
  color: var(--muted-foreground); transition: background .2s, color .2s, transform .15s;
}
.icon-btn:hover { background: var(--muted); color: var(--foreground); }
.icon-btn:active { transform: translateY(1px); }
.icon-btn .ic { width: 16px; height: 16px; }
.nav-user { display: flex; align-items: center; gap: 7px; padding: 4px 10px 4px 4px; border-radius: 999px; }
.avatar {
  width: 26px; height: 26px; border-radius: 999px; background: var(--gradient);
  color: #fff; font-size: 12px; font-weight: 700; display: grid; place-items: center;
}
.nav-user .role-pill {
  font-size: 10px; font-weight: 600; letter-spacing: .05em; text-transform: uppercase;
  color: var(--primary); background: color-mix(in srgb, var(--primary) 12%, transparent);
  border: 1px solid color-mix(in srgb, var(--primary) 25%, transparent);
  padding: 2px 7px; border-radius: 999px; white-space: nowrap;
}

/* ---------- 主题切换器（导航右侧；不挤压导航项，移动端仅保留图标） ---------- */
.theme-switch { position: relative; display: flex; align-items: center; }
.theme-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 7px;
  width: auto; padding: 0 10px; height: 34px; border-radius: 10px;
}
.theme-btn-label { font-size: 12.5px; font-weight: 600; white-space: nowrap; }
/* 展开态：按钮底色与导航玻璃条同色系（--muted），避免出现异色块 */
.theme-btn[aria-expanded="true"] { background: var(--muted); color: var(--foreground); }
.theme-drop {
  position: absolute; top: calc(100% + 10px); right: 0;
  min-width: 236px; max-width: calc(100vw - 24px); padding: 6px; z-index: 96;
  background: var(--popover);
  border: 1px solid color-mix(in srgb, var(--border) 60%, transparent);
  border-radius: 14px; box-shadow: var(--shadow-card);
  opacity: 0; visibility: hidden; transform: translateY(-8px) scale(.98);
  transition: opacity .22s cubic-bezier(.16, 1, .3, 1), transform .22s cubic-bezier(.16, 1, .3, 1), visibility .22s;
}
.theme-drop.open { opacity: 1; visibility: visible; transform: translateY(0) scale(1); }
.theme-drop-title {
  font-size: 10px; font-weight: 700; letter-spacing: .15em; text-transform: uppercase;
  color: var(--muted-foreground); padding: 7px 10px 5px;
}
.theme-item {
  width: 100%; display: flex; align-items: center; gap: 10px;
  padding: 9px 10px; border-radius: 9px; text-align: left;
  transition: background .18s;
}
.theme-item:hover { background: var(--muted); }
.theme-item.active { background: color-mix(in srgb, var(--primary) 12%, transparent); }
.theme-swatch {
  width: 22px; height: 22px; border-radius: 7px; flex: none;
  border: 1px solid var(--glass-ring);
}
.theme-meta { display: flex; flex-direction: column; line-height: 1.3; min-width: 0; }
.theme-meta b { font-size: 13px; font-weight: 600; color: var(--foreground); }
.theme-meta i { font-size: 11.5px; font-style: normal; color: var(--muted-foreground); }
.theme-tick { width: 15px; height: 15px; margin-left: auto; color: var(--primary); opacity: 0; transition: opacity .18s; }
.theme-item.active .theme-tick { opacity: 1; }
@media (max-width: 900px) {
  .theme-btn-label { display: none; }
  .theme-btn { width: 34px; padding: 0; }
}

/* ---------- 布局容器 ---------- */
.page { max-width: 72rem; margin: 0 auto; padding: 96px 24px 48px; }
.page-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 16px; margin-bottom: 26px; flex-wrap: wrap; }
.page-title { font-size: 26px; font-weight: 700; letter-spacing: -.02em; line-height: 1.15; }
.page-title .grad { background: var(--gradient); -webkit-background-clip: text; background-clip: text; color: transparent; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 10px; font-weight: 700; letter-spacing: .15em; text-transform: uppercase;
  color: var(--muted-foreground); margin-bottom: 8px;
}
.page-desc { color: var(--muted-foreground); font-size: 13px; margin-top: 6px; max-width: 46rem; }
.page-actions { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }

/* ---------- 卡片 / Bento ---------- */
.card {
  background: var(--card); border: 1px solid color-mix(in srgb, var(--border) 60%, transparent);
  border-radius: var(--radius-lg); box-shadow: var(--shadow-card);
  padding: 20px 22px; position: relative;
}
.card-hover { transition: background .3s, border-color .3s, transform .2s; }
.card-hover:hover { background: color-mix(in srgb, var(--muted) 25%, var(--card)); }
.bento { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 12px; }
.bento-border {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 1px; background: color-mix(in srgb, var(--border) 40%, transparent);
  border: 1px solid color-mix(in srgb, var(--border) 40%, transparent);
  border-radius: var(--radius-lg); overflow: hidden; padding: 0;
}
.bento-border > .bento-cell { background: var(--card); padding: 18px; min-height: 96px; }
.stat-num { font-size: 30px; font-weight: 700; letter-spacing: -.02em; font-variant-numeric: tabular-nums; }
.stat-num.grad { background: var(--gradient); -webkit-background-clip: text; background-clip: text; color: transparent; }
/* ---------- 仪表盘：12 列网格，模块间距 16px ---------- */
.dash-grid { display: grid; grid-template-columns: repeat(12, 1fr); gap: 16px; }
.dash-card {
  background: var(--card); border: 1px solid color-mix(in srgb, var(--border) 55%, transparent);
  border-radius: var(--radius-lg); box-shadow: var(--shadow-card); padding: 18px 20px;
}
.dash-card.stat { grid-column: span 2; }
.dash-card.stat.big { grid-column: span 4; }
/* 平板：6 列，卡片两两一行 */
@media (max-width: 1099px) and (min-width: 768px) {
  .dash-grid { grid-template-columns: repeat(6, 1fr); }
  .dash-card, .dash-card.stat, .dash-card.stat.big { grid-column: span 3; }
}
/* 移动端：单列堆叠 */
@media (max-width: 767px) {
  .dash-grid { grid-template-columns: 1fr; }
  .dash-card, .dash-card.stat, .dash-card.stat.big { grid-column: span 1; }
}
.dash-error { display: flex; align-items: center; gap: 12px; color: var(--danger); flex-wrap: wrap; }
.dash-error .ic { width: 18px; height: 18px; }

/* 难度分布联动行 */
.diff-row {
  width: 100%; display: flex; align-items: center; gap: 10px; padding: 8px 10px; margin-bottom: 6px;
  border-radius: 9px; border: 1px solid transparent; text-align: left; font-size: 13px; color: var(--foreground);
  transition: background .18s, border-color .18s;
}
.diff-row:hover { background: var(--muted); }
.diff-row:focus-visible { outline: none; box-shadow: 0 0 0 3px var(--ring); }
.diff-row.on { background: color-mix(in srgb, var(--primary) 10%, transparent); border-color: color-mix(in srgb, var(--primary) 35%, transparent); }
.diff-row .num { min-width: 34px; text-align: right; font-family: var(--font-mono); }
.diff-bar { flex: 1; height: 8px; border-radius: 999px; background: color-mix(in srgb, var(--border) 55%, transparent); overflow: hidden; }
.diff-bar i { display: block; height: 100%; border-radius: 999px; background: var(--gradient); }
.dash-note { margin-top: 10px; font-size: 11.5px; color: var(--muted-foreground); }

/* 提交情况 */
.sub-grid { display: grid; grid-template-columns: 1fr; gap: 8px; }
.sub-item {
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  padding: 12px 14px; border-radius: 10px; border: 1px solid color-mix(in srgb, var(--border) 55%, transparent);
  background: var(--background); color: var(--foreground); text-align: left;
  transition: border-color .18s, background .18s;
}
.sub-item:hover { border-color: var(--primary); background: color-mix(in srgb, var(--primary) 6%, var(--background)); }
.sub-item:focus-visible { outline: none; box-shadow: 0 0 0 3px var(--ring); }
.sub-item b { font-size: 20px; font-family: var(--font-mono); color: var(--secondary-foreground); }
.sub-hint { display: block; font-size: 10px; letter-spacing: .08em; text-transform: uppercase; color: var(--muted-foreground); margin-top: 2px; }

/* 报告模块（优先级徽章深色文字，满足对比度） */
.report-head { display: flex; gap: 8px; margin-bottom: 10px; flex-wrap: wrap; }
.report-list { list-style: none; }
.report-item { display: flex; align-items: center; gap: 8px; padding: 8px 0; border-bottom: 1px dashed color-mix(in srgb, var(--border) 45%, transparent); font-size: 12.5px; }
.prio { flex: none; padding: 2px 8px; border-radius: 999px; font-size: 10px; font-weight: 700; }
.prio.high { color: #991B1B; background: #FEE2E2; border: 1px solid #FECACA; }
.prio.normal { color: #1E40AF; background: #DBEAFE; border: 1px solid #BFDBFE; }
.dark .prio.high { color: #FECACA; background: rgba(127, 29, 29, .55); border-color: rgba(185, 28, 28, .5); }
.dark .prio.normal { color: #BFDBFE; background: rgba(30, 64, 175, .5); border-color: rgba(59, 130, 246, .45); }
.report-reason { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: var(--foreground); }
.report-meta { color: var(--muted-foreground); font-size: 11.5px; }

/* 分类/题库分布条形 */
.bar-row { display: flex; align-items: center; gap: 10px; padding: 7px 0; font-size: 13px; }
.bar-label { width: 130px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.bar-track { flex: 1; height: 8px; border-radius: 999px; background: color-mix(in srgb, var(--border) 55%, transparent); overflow: hidden; }
.bar-track i { display: block; height: 100%; border-radius: 999px; background: var(--gradient); }

/* 插件实时概览 + 快捷操作 */
.plugin-stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(110px, 1fr)); gap: 10px; }
.plugin-stat {
  padding: 12px 14px; border-radius: 10px; text-align: center;
  background: var(--background); border: 1px solid color-mix(in srgb, var(--border) 55%, transparent);
}
.plugin-stat span { display: block; font-size: 10px; letter-spacing: .08em; text-transform: uppercase; color: var(--muted-foreground); margin-bottom: 6px; }
.plugin-stat b { font-size: 24px; font-family: var(--font-mono); color: var(--secondary-foreground); }
.quick-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.quick-item {
  display: flex; align-items: center; gap: 8px; padding: 14px 16px; border-radius: 10px;
  border: 1px solid color-mix(in srgb, var(--border) 55%, transparent); background: var(--background);
  color: var(--foreground); font-size: 13px; font-weight: 500;
  transition: border-color .18s, background .18s, transform .18s;
}
.quick-item:hover { border-color: var(--primary); background: color-mix(in srgb, var(--primary) 6%, var(--background)); transform: translateY(-1px); }
.quick-item .ic { color: var(--primary); }
.stats-split { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin-top: 14px; }
.mini-title { font-size: 10px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: var(--muted-foreground); margin-bottom: 6px; }
.mini-row { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 5px 0; font-size: 12.5px; border-bottom: 1px dashed color-mix(in srgb, var(--border) 40%, transparent); }
.mini-q { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: var(--foreground); }
.warn-banner { display: flex; align-items: center; gap: 10px; color: var(--warning); border-color: color-mix(in srgb, var(--warning) 35%, transparent); margin-bottom: 16px; flex-wrap: wrap; }
.warn-banner .ic { width: 18px; height: 18px; flex: none; }

.stat-label { font-size: 10px; font-weight: 600; letter-spacing: .12em; text-transform: uppercase; color: var(--muted-foreground); margin-top: 4px; }
.card-title { font-size: 14px; font-weight: 600; display: flex; align-items: center; gap: 8px; margin-bottom: 12px; }
.card-title .ic { width: 16px; height: 16px; color: var(--primary); }

/* ---------- 徽章 ---------- */
.badge {
  display: inline-flex; align-items: center; gap: 5px;
  font-size: 10px; font-weight: 600; letter-spacing: .04em;
  padding: 3px 9px; border-radius: 999px; white-space: nowrap;
  border: 1px solid transparent; text-transform: uppercase;
}
.badge-dot { width: 6px; height: 6px; border-radius: 999px; background: currentColor; }
.badge-success { color: var(--success); background: color-mix(in srgb, var(--success) 10%, transparent); border-color: color-mix(in srgb, var(--success) 25%, transparent); }
.badge-warning { color: var(--warning); background: color-mix(in srgb, var(--warning) 10%, transparent); border-color: color-mix(in srgb, var(--warning) 25%, transparent); }
.badge-danger  { color: var(--danger);  background: color-mix(in srgb, var(--danger) 10%, transparent);  border-color: color-mix(in srgb, var(--danger) 25%, transparent); }
.badge-info    { color: var(--info);    background: color-mix(in srgb, var(--info) 10%, transparent);    border-color: color-mix(in srgb, var(--info) 25%, transparent); }
.badge-violet  { color: var(--violet);  background: color-mix(in srgb, var(--violet) 10%, transparent);  border-color: color-mix(in srgb, var(--violet) 25%, transparent); }
.badge-muted   { color: var(--muted-foreground); background: var(--muted); border-color: color-mix(in srgb, var(--border) 60%, transparent); }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 7px;
  height: 40px; padding: 0 18px; border-radius: var(--radius-md);
  font-size: 14px; font-weight: 500; white-space: nowrap;
  transition: background .2s, border-color .2s, color .2s, transform .15s, box-shadow .2s;
}
.btn:active { transform: translateY(1px); }
.btn:focus-visible { outline: none; box-shadow: 0 0 0 3px var(--ring); }
.btn:disabled { opacity: .5; pointer-events: none; }
.btn-primary { background: var(--primary); color: var(--primary-foreground); }
.btn-primary:hover { background: var(--primary-hover); }
.btn-outline { background: var(--background); border: 1px solid var(--input); color: var(--foreground); }
.btn-outline:hover { background: var(--muted); border-color: var(--border); }
.btn-ghost { color: var(--muted-foreground); }
.btn-ghost:hover { background: var(--muted); color: var(--foreground); }
.btn-danger { background: color-mix(in srgb, var(--danger) 10%, transparent); color: var(--danger); border: 1px solid color-mix(in srgb, var(--danger) 25%, transparent); }
.btn-danger:hover { background: color-mix(in srgb, var(--danger) 16%, transparent); }
.btn-sm { height: 32px; padding: 0 12px; font-size: 13px; border-radius: var(--radius-sm); }
.btn-sm .ic { width: 13px; height: 13px; }
.btn .ic { width: 15px; height: 15px; }
.btn .arrow { transition: transform .2s; }
.btn:hover .arrow { transform: translateX(.5px); }

/* ---------- 表单 ---------- */
.field { margin-bottom: 14px; }
.field > span { display: block; font-size: .84rem; color: var(--muted-foreground); margin-bottom: 6px; }
.field-label { display: block; font-size: 12px; font-weight: 600; color: var(--muted-foreground); margin-bottom: 6px; letter-spacing: .02em; }
.input, .select, .textarea {
  width: 100%; background: var(--background); border: 1px solid var(--input);
  border-radius: var(--radius-md); padding: 9px 12px;
  transition: border-color .2s, box-shadow .2s;
}
.input:focus, .select:focus, .textarea:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px var(--ring); }
.textarea { resize: vertical; min-height: 84px; line-height: 1.6; }
.select { appearance: none; background-image: linear-gradient(45deg, transparent 50%, var(--muted-foreground) 50%), linear-gradient(135deg, var(--muted-foreground) 50%, transparent 50%); background-position: calc(100% - 18px) 55%, calc(100% - 13px) 55%; background-size: 5px 5px; background-repeat: no-repeat; padding-right: 30px; }
.checkbox { display: inline-flex; align-items: center; gap: 8px; font-size: 13px; cursor: pointer; color: var(--muted-foreground); }
.checkbox input { accent-color: var(--primary); width: 15px; height: 15px; }

/* ---------- 表格 ---------- */
.table-wrap { overflow-x: auto; border: 1px solid color-mix(in srgb, var(--border) 55%, transparent); border-radius: var(--radius-lg); background: var(--card); }
.table { width: 100%; border-collapse: collapse; font-size: 13px; min-width: 640px; }
.table th {
  text-align: left; font-size: 10px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase;
  color: var(--muted-foreground); padding: 11px 14px;
  border-bottom: 1px solid color-mix(in srgb, var(--border) 60%, transparent);
  background: color-mix(in srgb, var(--muted) 55%, transparent);
  position: sticky; top: 0; z-index: 2; white-space: nowrap;
}
.table td { padding: 11px 14px; border-bottom: 1px solid color-mix(in srgb, var(--border) 30%, transparent); vertical-align: middle; }
.table tr:last-child td { border-bottom: none; }
.table tbody tr { transition: background .15s; }
.table tbody tr:hover { background: color-mix(in srgb, var(--muted) 22%, transparent); }
.table .num { font-variant-numeric: tabular-nums; font-family: var(--font-mono); font-size: 12.5px; }
.cell-main { font-weight: 500; max-width: 420px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.cell-sub { color: var(--muted-foreground); font-size: 12px; margin-top: 2px; }
.row-actions { display: flex; gap: 2px; justify-content: flex-end; }
.row-actions .icon-btn { width: 30px; height: 30px; }
.toolbar { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; margin-bottom: 16px; }
.toolbar .input, .toolbar .select { width: auto; min-width: 130px; }
.toolbar .grow { flex: 1; }

/* 标签页切换（日志等） */
.tab-pills { display: flex; gap: 6px; margin-bottom: 16px; flex-wrap: wrap; }
.tab-pill {
  padding: 7px 16px; border-radius: 999px; font-size: 13px; font-weight: 500;
  color: var(--muted-foreground); background: var(--muted); border: 1px solid transparent;
  transition: background .2s, color .2s, border-color .2s;
}
.tab-pill:hover { color: var(--foreground); }
.tab-pill:disabled { opacity: .5; cursor: not-allowed; }
.tab-pill:disabled:hover { color: var(--muted-foreground); }
.tab-pill:focus-visible { outline: none; box-shadow: 0 0 0 3px var(--ring); }
.tab-pill.on {
  color: var(--secondary-foreground);
  background: color-mix(in srgb, var(--secondary) 70%, transparent);
  border-color: color-mix(in srgb, var(--primary) 30%, transparent);
  font-weight: 600;
}

/* 分页 */
.pager { display: flex; align-items: center; gap: 12px; margin-top: 14px; justify-content: flex-end; color: var(--muted-foreground); font-size: 13px; }
.pager .num { font-family: var(--font-mono); }

/* ---------- 弹窗 ---------- */
.modal-mask { position: fixed; inset: 0; z-index: 100; background: rgba(10, 10, 12, .5); -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px); display: flex; align-items: flex-start; justify-content: center; padding: 6vh 16px 16px; overflow-y: auto; animation: fade-in .18s ease-out; }
.modal {
  width: 100%; max-width: 620px; background: var(--popover);
  border: 1px solid color-mix(in srgb, var(--border) 60%, transparent);
  border-radius: 1rem; box-shadow: 0 24px 70px -20px rgba(0, 0, 0, .45);
  animation: modal-in .22s cubic-bezier(.16, 1, .3, 1);
}
.modal-lg { max-width: 820px; }
.modal-head { display: flex; align-items: center; justify-content: space-between; padding: 16px 22px; border-bottom: 1px solid color-mix(in srgb, var(--border) 40%, transparent); }
.modal-title { font-size: 15px; font-weight: 600; }
.modal-body { padding: 20px 22px; }
.modal-foot { padding: 14px 22px; border-top: 1px solid color-mix(in srgb, var(--border) 40%, transparent); display: flex; justify-content: flex-end; gap: 10px; }
@keyframes modal-in { from { opacity: 0; transform: translateY(14px) scale(.97); } to { opacity: 1; transform: none; } }
@keyframes fade-in { from { opacity: 0; } to { opacity: 1; } }

/* ---------- 全局卡片弹窗（替代原生 confirm/prompt/alert；遮罩 30% + 背景模糊） ---------- */
.ui-mask {
  position: fixed; inset: 0; z-index: 300;
  display: flex; align-items: center; justify-content: center; padding: 20px;
  background: rgba(8, 10, 18, .3);
  -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px);
  animation: fade-in .18s ease-out;
}
.ui-card {
  width: 100%; max-width: 380px;
  background: var(--popover);
  border: 1px solid color-mix(in srgb, var(--border) 60%, transparent);
  border-radius: 1rem; box-shadow: 0 24px 70px -20px rgba(0, 0, 0, .45);
  padding: 22px 24px 18px;
  animation: modal-in .22s cubic-bezier(.16, 1, .3, 1);
}
.ui-title { font-size: 15px; font-weight: 600; margin-bottom: 10px; }
.ui-msg { font-size: 13.5px; line-height: 1.65; color: var(--muted-foreground); margin-bottom: 14px; word-break: break-word; }
.ui-actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 16px; }

/* ---------- 新建账号表单卡片 ---------- */
.user-form .form-section {
  font-size: 11px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase;
  color: var(--muted-foreground); margin: 18px 0 10px; padding-bottom: 6px;
  border-bottom: 1px solid color-mix(in srgb, var(--border) 45%, transparent);
  display: flex; align-items: center; gap: 8px;
}
.user-form .form-section:first-child { margin-top: 0; }
.user-form .req { color: var(--danger); font-style: normal; }
.user-form .section-hint { font-size: 11px; font-weight: 400; letter-spacing: 0; text-transform: none; color: var(--muted-foreground); }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
@media (max-width: 640px) { .form-grid { grid-template-columns: 1fr; } }

/* 角色选择卡片 + 悬停权限提示 */
.role-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
@media (max-width: 640px) { .role-grid { grid-template-columns: 1fr; } }
.role-opt {
  position: relative; cursor: pointer; padding: 12px 14px;
  border: 1px solid color-mix(in srgb, var(--border) 60%, transparent);
  border-radius: 12px; background: var(--background);
  transition: border-color .18s, background .18s, box-shadow .18s;
}
.role-opt:hover { border-color: var(--primary); background: color-mix(in srgb, var(--primary) 5%, var(--background)); }
.role-opt:focus-visible { outline: none; box-shadow: 0 0 0 3px var(--ring); }
.role-opt.on { border-color: var(--primary); background: color-mix(in srgb, var(--primary) 10%, var(--background)); box-shadow: 0 0 0 1px var(--primary) inset; }
.role-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 4px; }
.role-name { font-size: 13.5px; font-weight: 600; }
.role-code { font-size: 11px; color: var(--muted-foreground); font-family: var(--font-mono); }
.role-summary { font-size: 12px; color: var(--muted-foreground); line-height: 1.5; }
.role-tip {
  position: absolute; top: calc(100% + 8px); left: 0; z-index: 60; width: 250px;
  background: var(--popover); border: 1px solid color-mix(in srgb, var(--border) 60%, transparent);
  border-radius: 12px; box-shadow: 0 18px 44px -14px rgba(0, 0, 0, .4);
  padding: 12px 14px; pointer-events: none;
  opacity: 0; transform: translateY(-4px);
  transition: opacity .18s cubic-bezier(.16, 1, .3, 1), transform .18s cubic-bezier(.16, 1, .3, 1);
}
.role-opt:hover .role-tip, .role-opt:focus-within .role-tip { opacity: 1; transform: translateY(0); }
.role-tip .tip-title { font-size: 12.5px; font-weight: 600; margin-bottom: 6px; color: var(--foreground); }
.role-tip ul { list-style: none; }
.role-tip li { font-size: 12px; line-height: 1.6; color: var(--muted-foreground); padding-left: 14px; position: relative; }
.role-tip li::before { content: ""; position: absolute; left: 2px; top: 8px; width: 5px; height: 5px; border-radius: 50%; background: var(--primary); }

/* 题库授权多选 */
.bank-pick { display: flex; flex-wrap: wrap; gap: 8px; max-height: 180px; overflow-y: auto; padding: 2px; }
.bank-pick .chip { cursor: pointer; }

/* 我的账号 */
.my-account { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 10px; }
.my-item {
  display: flex; align-items: center; gap: 12px; padding: 12px 14px;
  border: 1px solid color-mix(in srgb, var(--border) 55%, transparent); border-radius: 10px; background: var(--background);
}
.my-item span { font-size: 12px; color: var(--muted-foreground); }
.my-item b { font-size: 14px; margin-right: auto; font-weight: 600; }
.spinner-mini {
  display: inline-block; width: 12px; height: 12px; flex: none;
  border: 2px solid color-mix(in srgb, var(--primary) 30%, transparent); border-top-color: var(--primary);
  border-radius: 50%; animation: login-spin .7s linear infinite;
}
.toasts { position: fixed; top: 84px; right: 18px; z-index: 200; display: flex; flex-direction: column; gap: 8px; }
.toast {
  min-width: 220px; max-width: 360px; padding: 11px 15px; border-radius: var(--radius-md);
  background: var(--popover); border: 1px solid var(--border);
  box-shadow: 0 10px 30px -10px rgba(0, 0, 0, .35);
  display: flex; gap: 9px; align-items: flex-start; font-size: 13px;
}
/* 进入：从右侧滑入；离开：向左滑出并淡出 */
.toast-enter-active { animation: toast-in-right .35s cubic-bezier(.16, 1, .3, 1); }
.toast-leave-active { transition: opacity .3s cubic-bezier(.16, 1, .3, 1), transform .3s cubic-bezier(.16, 1, .3, 1); }
.toast-leave-to { opacity: 0; transform: translateX(-32px); }
@keyframes toast-in-right { from { opacity: 0; transform: translateX(120%); } to { opacity: 1; transform: translateX(0); } }
.toast .ic { width: 16px; height: 16px; margin-top: 1px; flex-shrink: 0; }
.toast.ok .ic { color: var(--success); } .toast.err .ic { color: var(--danger); } .toast.info .ic { color: var(--info); }

/* ---------- 空状态 / 骨架 ---------- */
.empty { text-align: center; padding: 44px 20px; color: var(--muted-foreground); }
.empty .ic { width: 34px; height: 34px; margin: 0 auto 10px; opacity: .5; }
.empty-title { font-weight: 600; color: var(--foreground); margin-bottom: 4px; }
.skeleton { background: linear-gradient(100deg, var(--skeleton-base) 40%, var(--skeleton-highlight) 50%, var(--skeleton-base) 60%); background-size: 300% 100%; animation: shimmer 1.8s ease-in-out infinite; border-radius: var(--radius-md); }
@keyframes shimmer { to { background-position: -200% 0; } }

/* ---------- 登录页 ---------- */
.login-page { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 24px; }
/* roblox.qq.com 同款循环轮播背景：两段相同 cell + translateX(-50%) 严格无缝（源站 4668px/120s 线性循环） */
.login-banner { position: fixed; inset: 0; z-index: -2; overflow: hidden; background: #0a0a12; }
.login-banner-track {
  position: absolute; top: 0; left: 0; height: 100%;
  display: flex; width: calc(200vh * 3.89);       /* 两个 cell，各 = 图片等比渲染宽 */
  animation: login-banner-loop 120s linear infinite;
  will-change: transform;
}
.login-banner-cell {
  flex: none; width: calc(100vh * 3.89); height: 100%;   /* 2334/600 = 3.89 */
  background: url('/assets/login-bg.jpg') repeat-x top left / auto 100%;
}
@keyframes login-banner-loop { from { transform: translateX(0); } to { transform: translateX(-50%); } }
.login-banner::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(0, 0, 0, .7) 0%, rgba(0, 0, 0, .5) 100%);
}
.login-logo { display: flex; gap: 14px; align-items: center; margin-bottom: 26px; }
.logo-mark {
  width: 48px; height: 48px; border-radius: 14px; flex: none; object-fit: cover;
  background: #fff; padding: 3px;
  box-shadow: 0 4px 14px rgba(96, 165, 250, .35), 0 0 0 .5px rgba(0, 0, 0, .04);
}
.login-logo h1 {
  font-size: 1.3rem; letter-spacing: -.01em; font-weight: 700; line-height: 1.2;
  color: #F5F5F5;
}
.login-logo p { font-size: .82rem; color: rgba(255, 255, 255, .6); margin-top: 4px; }

/* ===== 登录卡片容器：黑色液态玻璃（黑底灰白字，明暗一致） ===== */
.login-card {
  position: relative;
  width: 400px; max-width: 100%;
  background: rgba(12, 12, 16, .68);
  -webkit-backdrop-filter: blur(24px); backdrop-filter: blur(24px);
  border: 1px solid rgba(255, 255, 255, .12); border-radius: 20px;
  box-shadow:
    0 1px 2px rgba(0, 0, 0, .4),
    0 24px 60px -28px rgba(0, 0, 0, .65);
  padding: 36px 34px 28px;
  transition: transform .4s cubic-bezier(.16, 1, .3, 1), box-shadow .4s cubic-bezier(.16, 1, .3, 1);
}
.dark .login-card { background: rgba(8, 8, 10, .74); border-color: rgba(255, 255, 255, .1); }
/* 顶部内高光 */
.login-card::before {
  content: ""; position: absolute; top: 0; left: 14px; right: 14px; height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, .35), transparent);
}
.dark .login-card::before { background: linear-gradient(90deg, transparent, rgba(255, 255, 255, .18), transparent); }
/* hover：轻微上浮 + 黑色阴影加深 */
.login-card:hover {
  transform: translateY(-3px);
  box-shadow:
    0 2px 4px rgba(0, 0, 0, .5),
    0 28px 70px -30px rgba(0, 0, 0, .75);
}
.form-error {
  background: color-mix(in srgb, var(--danger) 8%, transparent);
  border: 1px solid color-mix(in srgb, var(--danger) 30%, transparent);
  color: var(--danger); border-radius: 9px; padding: 10px 13px;
  font-size: .85rem; margin-bottom: 14px;
}
.btn-block { width: 100%; }

/* 输入框：黑色玻璃 + 聚焦高亮、非空态反馈（灰白主题） */
.login-card .field > span { color: rgba(255, 255, 255, .62); transition: color .25s; }
.login-card .field:focus-within > span { color: #fff; }
.login-card .input {
  min-height: 42px; border-radius: 10px;
  background: rgba(0, 0, 0, .3); color: #F5F5F5;
  border-color: rgba(255, 255, 255, .16);
  transition: border-color .2s, box-shadow .2s, background-color .2s;
}
.login-card .input::placeholder { color: rgba(255, 255, 255, .38); }
.login-card .input:focus { border-color: #fff; box-shadow: 0 0 0 3px rgba(255, 255, 255, .18); }
.login-card .input:not(:placeholder-shown) { border-color: rgba(255, 255, 255, .35); }

/* 按钮：白底黑字（黑玻璃上的对比主操作） */
.login-card .btn-block {
  margin-top: 16px;
  background: #fff; color: #101014;
  border: none; font-weight: 600;
  box-shadow: 0 6px 18px -8px rgba(0, 0, 0, .55);
}
.login-card .btn-block:hover { background: #E6E6E8; box-shadow: 0 8px 22px -8px rgba(0, 0, 0, .6); }
.login-card .btn-block:active { transform: translateY(1px) scale(.99); box-shadow: 0 2px 8px -4px rgba(0, 0, 0, .6); }
.login-card .btn-block:disabled { opacity: .72; }
.login-card .btn-block .spinner {
  display: inline-block; width: 14px; height: 14px; margin-right: 8px; vertical-align: -2px;
  border: 2px solid rgba(0, 0, 0, .25); border-top-color: #101014; border-radius: 50%;
  animation: login-spin .7s linear infinite;
}
@keyframes login-spin { to { transform: rotate(360deg); } }

/* 入场：卡片 fade-up + 内部三段错峰滑入 */
.login-card .login-logo { animation: login-in .6s cubic-bezier(.16, 1, .3, 1) both; animation-delay: .08s; }
.login-card form { animation: login-in .6s cubic-bezier(.16, 1, .3, 1) both; animation-delay: .18s; }
.login-card .login-foot, .login-card .login-help { animation: login-in .6s cubic-bezier(.16, 1, .3, 1) both; animation-delay: .28s; }
@keyframes login-in { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: none; } }

/* 背景淡入 */
.login-banner { animation: login-bg-in 1.1s ease-out both; }
@keyframes login-bg-in { from { opacity: 0; } to { opacity: 1; } }

/* 表单错误：卡片抖动 + 提示滑入 */
.login-card.shake { animation: login-shake .45s cubic-bezier(.36, .07, .19, .97) both; }
@keyframes login-shake {
  0%, 100% { transform: translateX(0); }
  20% { transform: translateX(-7px); } 40% { transform: translateX(6px); }
  60% { transform: translateX(-4px); } 80% { transform: translateX(2px); }
}
.form-error { animation: login-error-in .35s cubic-bezier(.16, 1, .3, 1) both; }
@keyframes login-error-in { from { opacity: 0; transform: translateY(-6px) scale(.98); } to { opacity: 1; transform: none; } }
/* 底部提示与辅助链接：灰白系 */
.login-foot { margin-top: 20px; text-align: center; font-size: .76rem; color: rgba(255, 255, 255, .5); }
.login-help { margin-top: 14px; text-align: center; font-size: .78rem; }
.login-help a {
  color: rgba(255, 255, 255, .55); text-decoration: none; position: relative;
  transition: color .25s;
}
.login-help a::after {
  content: ""; position: absolute; left: 0; bottom: -2px; width: 100%; height: 1px;
  background: #fff; transform: scaleX(0); transform-origin: left;
  transition: transform .3s cubic-bezier(.16, 1, .3, 1);
}
.login-help a:hover { color: #fff; }
.login-help a:hover::after { transform: scaleX(1); }

/* 响应式：窄屏 / 矮屏 */
@media (max-width: 460px) {
  .login-card { padding: 28px 22px 24px; border-radius: 18px; }
  .login-logo { margin-bottom: 20px; }
  .logo-mark { width: 40px; height: 40px; border-radius: 12px; }
  .login-logo h1 { font-size: 1.16rem; }
}
@media (max-height: 620px) {
  .login-card { padding: 22px 30px 20px; }
  .login-logo { margin-bottom: 16px; }
}
.login-badge { display: inline-flex; align-items: center; gap: 7px; padding: 5px 12px; border-radius: 999px; background: color-mix(in srgb, var(--info) 6%, transparent); border: 1px solid color-mix(in srgb, var(--info) 22%, transparent); font-size: 11px; font-weight: 500; color: var(--secondary-foreground); margin-bottom: 18px; }
.login-badge .dot { width: 7px; height: 7px; border-radius: 999px; background: var(--success); box-shadow: 0 0 8px rgba(34, 197, 94, .45); animation: pulse-dot 1.5s ease-in-out infinite; }
@keyframes pulse-dot { 0%, 100% { opacity: 1; } 50% { opacity: .45; } }
.login-title { font-size: 30px; font-weight: 700; letter-spacing: -.02em; line-height: 1.15; margin-bottom: 8px; }
.login-desc { color: var(--muted-foreground); font-size: 13px; margin-bottom: 24px; }

/* ---------- 页面进场动画 ---------- */
.reveal { opacity: 0; }
.reveal.in { animation: fade-up .6s cubic-bezier(.16, 1, .3, 1) forwards; }
@keyframes fade-up { from { opacity: 0; transform: translateY(24px); } to { opacity: 1; transform: none; } }
.stagger-1 { animation-delay: .06s !important; } .stagger-2 { animation-delay: .12s !important; }
.stagger-3 { animation-delay: .18s !important; } .stagger-4 { animation-delay: .24s !important; }

/* ---------- 分步向导 ---------- */
.steps { display: flex; gap: 8px; margin-bottom: 22px; }
.step { flex: 1; display: flex; align-items: center; gap: 9px; padding: 10px 14px; border-radius: var(--radius-md); border: 1px solid color-mix(in srgb, var(--border) 55%, transparent); background: var(--card); color: var(--muted-foreground); font-size: 13px; font-weight: 500; transition: all .25s; }
.step .n { width: 22px; height: 22px; border-radius: 999px; background: var(--muted); display: grid; place-items: center; font-size: 11px; font-weight: 700; font-family: var(--font-mono); }
.step.active { border-color: var(--primary); color: var(--foreground); box-shadow: 0 0 0 3px var(--ring); }
.step.active .n { background: var(--primary); color: #fff; }
.step.done { border-color: var(--success); color: var(--success); }
.step.done .n { background: var(--success); color: #fff; }

/* ---------- 选项 / 标签 ---------- */
.chip { display: inline-flex; align-items: center; gap: 6px; padding: 5px 11px; border-radius: 999px; border: 1px solid var(--input); background: var(--background); font-size: 12.5px; transition: all .2s; }
.chip:hover { border-color: var(--primary); }
.chip.on { background: color-mix(in srgb, var(--primary) 12%, transparent); border-color: var(--primary); color: var(--secondary-foreground); }
.chip.bad { border-color: color-mix(in srgb, var(--danger) 30%, transparent); color: var(--danger); }
.opt-row { display: flex; gap: 8px; align-items: center; margin-bottom: 8px; }
.opt-row .input { flex: 1; }
.diff-bar { height: 8px; border-radius: 999px; background: color-mix(in srgb, var(--border) 50%, transparent); overflow: hidden; }
.diff-bar i { display: block; height: 100%; border-radius: 999px; background: var(--gradient); }

/* ---------- 连接状态卡 ---------- */
.conn-card { display: flex; gap: 14px; align-items: flex-start; }
.conn-card .ic-box { width: 40px; height: 40px; border-radius: var(--radius-md); display: grid; place-items: center; flex-shrink: 0; background: color-mix(in srgb, var(--warning) 12%, transparent); color: var(--warning); }
.conn-card.ok .ic-box { background: color-mix(in srgb, var(--success) 12%, transparent); color: var(--success); }
.conn-card .ic { width: 19px; height: 19px; }

/* ---------- 登录加载 / 首屏 ---------- */
.page-loading { min-height: 100vh; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 14px; }
.loading-dot { width: 34px; height: 34px; border-radius: 999px; background: var(--gradient); animation: pulse-dot 1.2s ease-in-out infinite; }
.loading-label { font-size: 10px; letter-spacing: .3em; color: var(--muted-foreground); font-weight: 600; }

/* ---------- 移动端 ---------- */
.nav-toggle { display: none; }
@media (max-width: 900px) {
  .nav-toggle { display: grid; }
  /* 全屏抽屉：相对视口定位（.glass-nav 已无 backdrop-filter，不再截获 fixed 包含块） */
  .nav-links {
    position: fixed; top: 0; left: 0; right: 0; bottom: 0; width: 100%;
    z-index: 79;                       /* 低于导航(80)：汉堡按钮保持可点击，用于关闭 */
    flex-direction: column; align-items: stretch;
    background: color-mix(in srgb, var(--background) 96%, transparent);
    -webkit-backdrop-filter: blur(40px); backdrop-filter: blur(40px);
    padding: 84px 14px calc(24px + env(safe-area-inset-bottom, 0px));
    gap: 4px;
    transition: opacity .28s cubic-bezier(.16, 1, .3, 1), visibility .28s;
    opacity: 0; visibility: hidden; overflow-y: auto;
  }
  .nav-links.open { opacity: 1; visibility: visible; }
  .nav-links .nav-link {
    padding: 14px 16px; font-size: 15px; border-radius: 12px; color: var(--muted-foreground);
  }
  .nav-links .nav-link .chev { margin-left: auto; }
  .nav-links .nav-group > .nav-link { justify-content: space-between; }
  /* 二级菜单：可展开/折叠的层级（缩进展示），与桌面同风格 */
  .nav-group { position: static; }
  .drop {
    position: static; min-width: 0; transform: none; visibility: visible; opacity: 1;
    box-shadow: none; border: none; border-radius: 0; background: transparent;
    padding: 2px 0 6px 12px; display: none;
  }
  .drop.open { display: block; transform: none; }
  .drop-item { padding: 12px 14px; font-size: 14px; border-radius: 10px; }
  .drop-item.active { background: color-mix(in srgb, var(--secondary) 70%, transparent); }
  .nav-user .uname { display: none; }
  .page { padding: 86px 16px 36px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; }
  .login-banner-track { animation: none; width: 100%; }
  .login-banner-cell { width: 100%; background-size: cover; background-position: center; }
}

/* ================= 报告中心：题目报告卡片（同步插件报告处理页） ================= */
.rep-list { display: flex; flex-direction: column; gap: 12px; }
.rep-card {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius, 14px);
  padding: 14px 16px; box-shadow: var(--shadow, 0 1px 3px rgba(0,0,0,.06));
  animation: cardIn .35s ease both;
}
.rep-head { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; margin-bottom: 10px; }
.rep-head .tag { font-size: 12px; }
.rep-head .rep-reason {
  color: var(--danger); border-color: color-mix(in srgb, var(--danger) 40%, transparent);
  background: color-mix(in srgb, var(--danger) 12%, transparent);
}
.rep-meta { margin-left: auto; font-size: 12px; color: var(--muted-foreground); white-space: nowrap; }
/* 报告中心：列表刷新时仅轻微淡化（不改变布局高度，避免滚动位置跳动） */
.rep-list.refreshing { opacity: .65; transition: opacity .2s; }
.rep-q { padding: 10px 12px; border: 1px dashed color-mix(in srgb, var(--border) 60%, transparent); border-radius: 10px; background: color-mix(in srgb, var(--muted) 30%, transparent); }
.rep-q-tags { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; margin-bottom: 8px; }
.rep-q-tags .tag { font-size: 12px; }
.rep-q-stem { font-size: 13.5px; line-height: 1.75; color: var(--foreground); white-space: pre-wrap; word-break: break-word; }
.rep-q-opts { margin-top: 8px; display: flex; flex-direction: column; gap: 4px; }
.rep-opt {
  font-size: 12.5px; line-height: 1.6; color: var(--muted-foreground);
  border: 1px solid transparent; border-radius: 8px; padding: 4px 8px;
}
.rep-opt.right { color: var(--ok); border-color: color-mix(in srgb, var(--ok) 40%, transparent); background: color-mix(in srgb, var(--ok) 10%, transparent); }
.rep-opt-mark { margin-left: 6px; font-size: 11px; color: var(--ok); font-weight: 600; }
.rep-q-expl { margin-top: 8px; font-size: 12.5px; color: var(--muted-foreground); line-height: 1.6; white-space: pre-wrap; }
/* 报告中心：判断题 / 问答题标准答案行（与选择题「正确答案」标记同一强调色） */
.rep-q-ans { margin-top: 8px; font-size: 12.5px; line-height: 1.6; color: var(--muted-foreground); white-space: pre-wrap; word-break: break-word; }
.rep-ans-val { color: var(--ok); font-weight: 600; }
.rep-ops { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 12px; }
@media (max-width: 640px) { .rep-meta { margin-left: 0; white-space: normal; } }

/* 报告中心：题目操作分隔线与题目编辑表单 */
.rep-ops-divider { width: 1px; height: 16px; background: var(--border); margin: 0 4px; align-self: center; }
.ed-opt-row { display: flex; gap: 8px; align-items: center; margin-bottom: 6px; }
.ed-opt-row .input { flex: 1; }
.ed-opt-idx { width: 22px; text-align: center; font-weight: 600; font-size: 12px; color: var(--muted-foreground); flex: none; }

/* ============================================================
   移动端全面适配（移动优先补强）
   断点：平板 768~1099 · 手机 ≤767（重点 ≤640 / ≤480）
   ============================================================ */

/* 工作台 12 列 → 断点降级（替代原内联 grid-column：内联样式优先级会压过媒体查询） */
.dash-w2 { grid-column: span 2; } .dash-w4 { grid-column: span 4; }
.dash-w6 { grid-column: span 6; } .dash-w8 { grid-column: span 8; } .dash-w12 { grid-column: span 12; }
@media (max-width: 1099px) and (min-width: 768px) {
  .dash-w2 { grid-column: span 1; } .dash-w4 { grid-column: span 2; }
  .dash-w6 { grid-column: span 3; } .dash-w8 { grid-column: span 4; } .dash-w12 { grid-column: span 6; }
}
@media (max-width: 767px) {
  .dash-w2, .dash-w4, .dash-w6, .dash-w8, .dash-w12 { grid-column: span 1; }
}

/* ---------- 导航：≤900 移动化强化 ---------- */
@media (max-width: 900px) {
  .nav-wrap { padding: 10px 12px 0; }
  .glass-nav { padding: 6px 10px; }
  .nav-links { padding: 92px 16px calc(24px + env(safe-area-inset-bottom, 0px)); }
  .nav-links .nav-link { font-size: 15px; padding: 13px 16px; }
  .nav-group .drop { padding-left: 22px; }
  .nav-user { gap: 2px; padding: 2px; }
  .nav-user .role-pill { display: none; }          /* 压缩右区，角色在抽屉内不展示 */
  .nav-actions { gap: 2px; }
  /* 平板/窄屏：内联双列 grid → 单列（避免内嵌 640px 表格横向溢出） */
  div[style*="1fr 1fr"] { grid-template-columns: 1fr !important; }
}
/* ---------- 手机：导航更紧凑，汉堡可见性稳定 ---------- */
@media (max-width: 640px) {
  .brand { gap: 7px; }
  .brand-logo { width: 26px; height: 26px; }
  .brand-name { display: none; }                   /* 窄屏仅保留品牌图标 */
  .nav-user .uname { display: none; }
  .nav-actions .icon-btn { width: 38px; height: 38px; }

  /* 页面容器与标题 */
  .page { padding: 78px 12px 28px; }
  .page-head { margin-bottom: 18px; gap: 12px; }
  .page-title { font-size: 22px; }
  .page-desc { font-size: 12.5px; }
  .page-actions { width: 100%; }
  .page-actions .btn { flex: 1 1 auto; justify-content: center; }

  /* 卡片紧凑 */
  .card { padding: 16px 15px; }
  .dash-card { padding: 14px 15px; }
  .stat-num { font-size: 26px; }
  .bento, .bento-border { grid-template-columns: 1fr; }

  /* 内联双列 grid → 单列（覆盖内联 style；含 768~900 平板，避免内嵌 640px 表格溢出） */
  div[style*="1fr 1fr"] { grid-template-columns: 1fr !important; }

  /* 步骤条竖向 */
  .steps { flex-direction: column; gap: 6px; }

  /* ---------- 通知（toast）：底部通栏，清晰可点 ---------- */
  .toasts { top: auto; bottom: calc(14px + env(safe-area-inset-bottom, 0px)); right: 12px; left: 12px; align-items: stretch; }
  .toast { min-width: 0; max-width: 100%; width: 100%; padding: 13px 15px; font-size: 13.5px; box-shadow: 0 12px 34px -10px rgba(0, 0, 0, .45); }
  .toast-enter-active { animation: toast-in-up .35s cubic-bezier(.16, 1, .3, 1); }
  .toast-leave-to { transform: translateY(24px); }
  @keyframes toast-in-up { from { opacity: 0; transform: translateY(120%); } to { opacity: 1; transform: translateY(0); } }

  /* ---------- 弹窗：底部抽屉式 + 限高 + 安全区 ---------- */
  .modal-mask { align-items: flex-end; padding: 0; }
  .modal, .modal-lg { max-width: 100%; max-height: 92vh; border-radius: 18px 18px 0 0; display: flex; flex-direction: column; }
  .modal-head { padding: 14px 16px; }
  .modal-body { overflow-y: auto; padding: 16px 16px calc(16px + env(safe-area-inset-bottom, 0px)); }
  .modal-foot { padding: 12px 16px calc(12px + env(safe-area-inset-bottom, 0px)); }
  .modal-foot .btn { flex: 1 1 auto; justify-content: center; }

  /* 全局确认/输入弹窗：小屏全宽 */
  .ui-mask { padding: 18px; }
  .ui-card { max-width: 100%; padding: 20px 18px calc(16px + env(safe-area-inset-bottom, 0px)); }
  .ui-actions .btn { flex: 1 1 auto; justify-content: center; }

  /* 工具栏堆叠 */
  .toolbar { align-items: stretch; }
  .toolbar .input, .toolbar .select { width: 100%; min-width: 0; }

  /* 触摸目标 ≥ 38px */
  .icon-btn { width: 40px; height: 40px; }
  .row-actions .icon-btn { width: 38px; height: 38px; }
  .tab-pill { padding: 9px 15px; }
  .btn-sm { height: 36px; padding: 0 13px; }

  /* 报告卡片按钮满行排布 */
  .rep-card { padding: 12px 12px; }
  .rep-ops { gap: 7px; }
  .rep-ops .btn-sm { flex: 1 1 auto; justify-content: center; }
  .rep-ops-divider { display: none; }
  .rep-opt { padding: 6px 8px; }

  /* 账号卡 / 角色卡 / 表单网格 */
  .my-account { grid-template-columns: 1fr; }
  .my-item { flex-wrap: wrap; gap: 8px; }
  .my-item b { flex-basis: 100%; order: -1; }

  /* 分页居中换行 */
  .pager { justify-content: center; flex-wrap: wrap; gap: 8px; }

  /* 选项/答案编辑行换行 */
  .opt-row { flex-wrap: wrap; }
  .opt-row .input { flex: 1 1 100%; }
  .ed-opt-row { flex-wrap: wrap; }
  .ed-opt-row .input { flex: 1 1 100%; }
  .ed-opt-row .btn { flex: none; }

  /* 迷你统计区单列 */
  .stats-split { grid-template-columns: 1fr; }
  .quick-grid { grid-template-columns: 1fr 1fr; }

  /* 表格头吸顶补偿：避免被固定导航遮挡（wrap 内滚动不受影响） */
  .table th { font-size: 9.5px; padding: 10px 10px; }
  .table td { padding: 10px; }
}
/* ---------- 超小屏（≤480） ---------- */
@media (max-width: 480px) {
  .page-title { font-size: 20px; }
  .page-desc { font-size: 12px; }
  .stat-num { font-size: 24px; }
  .plugin-stat b { font-size: 21px; }
  .sub-item b { font-size: 18px; }
  .login-page { padding: 16px; }
  .login-card { padding: 26px 20px 22px; }
  .login-title { font-size: 26px; }
  .quick-grid { grid-template-columns: 1fr; }
  .table { min-width: 560px; }
}

/* ---------- 触屏设备：避免 hover 粘滞，用 active 反馈 ---------- */
@media (hover: none) and (pointer: coarse) {
  .card-hover:hover, .quick-item:hover, .sub-item:hover, .diff-row:hover,
  .nav-link:hover, .drop-item:hover, .role-opt:hover { transform: none; background: inherit; border-color: inherit; }
  .btn:hover { background: inherit; }
  .btn-primary:hover { background: var(--primary); }
  .btn:active { transform: translateY(1px) scale(.99); }
}

/* 移动端：表格操作列（最后一列）吸顶固定，横向滚动时始终可见（如删除/操作按钮） */
@media (max-width: 640px) {
  .table th:last-child,
  .table td:last-child {
    position: sticky; right: 0;
  }
  .table th:last-child {
    background: color-mix(in srgb, var(--muted) 55%, transparent);
    box-shadow: -8px 0 10px -6px rgba(0, 0, 0, .18);
    z-index: 3;
  }
  .table td:last-child {
    background: var(--card);
    box-shadow: -8px 0 10px -6px rgba(0, 0, 0, .12);
  }
}