/* ===== HFUT 综合评议管理 · Swiss Modernism 2.0（学术深蓝） ===== */
:root {
  --color-primary: #1E3A5F;
  --color-on-primary: #FFFFFF;
  --color-secondary: #0369A1;
  --color-accent: #059669;
  --color-background: #F1F5F9;
  --color-foreground: #0F172A;
  --color-muted: #E8EEF5;
  --color-muted-fg: #64748B;
  --color-border: #D8E0EA;
  --color-card: #FFFFFF;
  --color-destructive: #DC2626;
  --color-ring: #0369A1;
  --color-warning: #B45309;
  --color-success: #059669;
  --text-secondary: #64748B;
  --sidebar-bg: #0F2744;
  --sidebar-fg: #E2E8F0;
  --sidebar-muted: #8BA3C0;
  --sidebar-hover: rgba(255, 255, 255, .07);
  --sidebar-active: rgba(3, 105, 161, .28);
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 1px 2px rgba(15, 39, 68, .04), 0 6px 20px rgba(15, 39, 68, .06);
  --shadow-md: 0 4px 12px rgba(15, 39, 68, .07), 0 12px 28px rgba(15, 39, 68, .06);
  --shadow-lg: 0 16px 48px rgba(15, 39, 68, .16);
  --shadow-inset: inset 0 1px 0 rgba(255, 255, 255, .7);
  --sidebar-w: 268px;
  --topbar-h: 60px;
  --ease: cubic-bezier(.22, 1, .36, 1);
  --font: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-display: "Noto Serif SC", "Noto Sans SC", "Songti SC", serif;
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --safe-top: env(safe-area-inset-top, 0px);
  --safe-right: env(safe-area-inset-right, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
  --safe-left: env(safe-area-inset-left, 0px);
  --bp-phone: 640px;
  --bp-tablet: 1024px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  overflow-x: hidden;
}
body {
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.6;
  color: var(--color-foreground);
  background:
    radial-gradient(1200px 600px at 10% -10%, rgba(3, 105, 161, .07), transparent 55%),
    radial-gradient(900px 500px at 100% 0%, rgba(30, 58, 95, .06), transparent 50%),
    var(--color-background);
  min-height: 100dvh;
  overflow-x: hidden;
  touch-action: manipulation;
}
img, svg, video { max-width: 100%; height: auto; }
body.sidebar-open { overflow: hidden; }
a { color: var(--color-secondary); text-decoration: none; transition: color .2s var(--ease); }
a:hover { color: var(--color-primary); text-decoration: underline; }
button { font-family: inherit; cursor: pointer; }
input, select, textarea { font-family: inherit; font-size: 15px; }
:focus-visible {
  outline: 2px solid var(--color-ring);
  outline-offset: 2px;
}
.btn:focus-visible, .nav-item:focus-visible, .input:focus-visible {
  outline: none;
}

/* 跳过导航 */
.skip-link {
  position: absolute; left: 12px; top: -48px; z-index: 300;
  background: var(--color-primary); color: #fff; padding: 10px 16px;
  border-radius: var(--radius-sm); font-weight: 600; font-size: 14px;
  transition: top .2s var(--ease);
}
.skip-link:focus { top: 12px; text-decoration: none; color: #fff; }

/* ===== 布局 ===== */
.app { min-height: 100dvh; }
.main {
  min-width: 0; display: flex; flex-direction: column;
  margin-left: var(--sidebar-w); min-height: 100dvh;
}
.content {
  flex: 1; padding: var(--space-5) 28px 56px;
  max-width: 1280px; width: 100%; margin: 0 auto;
  animation: contentIn .35s var(--ease);
}
.page-title {
  font-family: var(--font-display);
  font-size: 26px; font-weight: 700; margin-bottom: 6px;
  letter-spacing: .01em; color: var(--color-primary);
}
.page-sub { color: var(--text-secondary); font-size: 14px; margin-bottom: 22px; line-height: 1.7; }

.page-hero {
  display: flex; align-items: flex-start; justify-content: space-between; gap: 16px;
  flex-wrap: wrap; margin-bottom: 22px;
  padding: 22px 24px;
  background:
    linear-gradient(135deg, rgba(255,255,255,.92), rgba(232,238,245,.85)),
    linear-gradient(120deg, rgba(3,105,161,.08), transparent 55%);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  box-shadow: var(--shadow), var(--shadow-inset);
}
.page-hero .page-title { margin-bottom: 4px; }
.page-hero .page-sub { margin-bottom: 0; max-width: 52ch; }
.page-hero-actions { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.page-hero .deadline-wrap { margin-top: 10px; }

.grade-bar {
  display: flex; align-items: center; gap: 12px; margin-bottom: 18px; flex-wrap: wrap;
  padding: 12px 14px; background: var(--color-card); border: 1px solid var(--color-border);
  border-radius: 12px; box-shadow: var(--shadow);
}
.grade-bar .label { font-size: 13px; color: var(--text-secondary); font-weight: 500; }
.grade-bar .value { font-size: 13px; font-weight: 600; color: var(--color-primary); }
.grade-bar .input { max-width: 300px; min-height: 40px; padding: 8px 12px; }

.info-list { width: 100%; border-collapse: collapse; font-size: 14px; }
.info-list tr td { padding: 12px 4px; border-bottom: 1px solid var(--color-muted); vertical-align: top; }
.info-list tr:last-child td { border-bottom: none; }
.info-list .k { width: 120px; color: var(--text-secondary); font-weight: 500; }
.info-list .v { font-weight: 600; color: var(--color-foreground); }

.action-row { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 16px; align-items: center; }

.panel-head {
  padding: 14px 18px; border-bottom: 1px solid var(--color-muted);
  font-weight: 600; background: linear-gradient(180deg, #F8FAFC, var(--color-muted));
  border-radius: 12px 12px 0 0; display: flex; align-items: center; justify-content: space-between;
  gap: 10px; flex-wrap: wrap; font-size: 14px; color: var(--color-primary);
}

.status-hero {
  display: flex; align-items: center; gap: 16px; padding: 18px;
  border-radius: 14px; border: 1px solid var(--color-border); margin-bottom: 16px;
  background: #fff;
}
.status-hero .icon {
  width: 48px; height: 48px; border-radius: 14px; display: flex;
  align-items: center; justify-content: center; flex-shrink: 0;
}
.status-hero .icon svg { width: 24px; height: 24px; }
.status-hero.ok { background: linear-gradient(135deg, #ECFDF5, #fff); border-color: #A7F3D0; }
.status-hero.ok .icon { background: #D1FAE5; color: #065F46; }
.status-hero.warn { background: linear-gradient(135deg, #FFFBEB, #fff); border-color: #FDE68A; }
.status-hero.warn .icon { background: #FEF3C7; color: #92400E; }
.status-hero.info { background: linear-gradient(135deg, #F0F9FF, #fff); border-color: #BAE6FD; }
.status-hero.info .icon { background: #E0F2FE; color: #075985; }
.status-hero.err { background: linear-gradient(135deg, #FEF2F2, #fff); border-color: #FECACA; }
.status-hero.err .icon { background: #FEE2E2; color: #991B1B; }
.status-hero .title { font-weight: 700; font-size: 15px; margin-bottom: 2px; }
.status-hero .desc { font-size: 13px; color: var(--text-secondary); line-height: 1.55; }

.password-field { position: relative; }
.password-field .input { padding-right: 48px; }
.password-toggle {
  position: absolute; right: 6px; top: 50%; transform: translateY(-50%);
  width: 40px; height: 40px; border: none; background: transparent; color: var(--text-secondary);
  border-radius: 8px; display: flex; align-items: center; justify-content: center; cursor: pointer;
}
.password-toggle:hover { background: var(--color-muted); color: var(--color-foreground); }
.password-toggle svg { width: 18px; height: 18px; }

.peer-counter.sticky {
  position: sticky; top: calc(var(--topbar-h) + 8px); z-index: 30;
  background: rgba(255,255,255,.92); backdrop-filter: blur(10px);
  padding: 10px 12px; border: 1px solid var(--color-border); border-radius: 12px;
  box-shadow: var(--shadow); margin-bottom: 14px;
}
.peer-submit-bar {
  position: sticky; bottom: 0; z-index: 25;
  background: linear-gradient(180deg, transparent, var(--color-background) 28%);
  padding: 18px 0 8px; margin-top: 8px;
}

/* ===== 管理端表单分区 ===== */
.form-shell { max-width: 720px; }
.form-section {
  background: var(--color-card); border: 1px solid var(--color-border);
  border-radius: var(--radius); box-shadow: var(--shadow), var(--shadow-inset);
  padding: 22px 24px; margin-bottom: 16px;
}
.form-section-head {
  display: flex; align-items: flex-start; gap: 12px; margin-bottom: 18px;
}
.form-section-head .icon {
  width: 40px; height: 40px; border-radius: 12px; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  background: rgba(3, 105, 161, .1); color: var(--color-secondary);
}
.form-section-head .icon svg { width: 20px; height: 20px; }
.form-section-head .icon.green { background: #D1FAE5; color: #065F46; }
.form-section-head .icon.amber { background: #FEF3C7; color: #92400E; }
.form-section-head h2 {
  font-family: var(--font-display); font-size: 16px; font-weight: 700;
  color: var(--color-primary); margin: 0 0 2px; line-height: 1.3;
}
.form-section-head p { margin: 0; font-size: 13px; color: var(--text-secondary); line-height: 1.5; }
.form-actions {
  display: flex; gap: 10px; flex-wrap: wrap; align-items: center;
  padding-top: 4px; margin-top: 4px;
}
.form-inline {
  display: flex; gap: 10px; align-items: stretch; flex-wrap: wrap;
}
.form-inline .input { flex: 1; min-width: 200px; }
.form-inline .btn { flex-shrink: 0; }

.check-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 8px;
}
.check-chip {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 12px; min-height: 44px;
  background: #fff; border: 1px solid var(--color-border); border-radius: 10px;
  font-size: 14px; font-weight: 500; cursor: pointer;
  transition: border-color .2s, background .2s, box-shadow .2s;
  user-select: none;
}
.check-chip:hover { border-color: #B8C9DC; background: #F8FBFF; }
.check-chip:has(input:checked) {
  border-color: var(--color-secondary); background: #E0F2FE;
  box-shadow: 0 0 0 3px rgba(3, 105, 161, .12); color: #075985;
}
.check-chip input { width: 16px; height: 16px; accent-color: var(--color-secondary); flex-shrink: 0; }
.check-list { display: flex; flex-direction: column; gap: 8px; }
.check-list .check-chip { max-width: 100%; }

.ratio-preview {
  display: flex; height: 10px; border-radius: 999px; overflow: hidden;
  background: var(--color-muted); margin: 8px 0 12px;
}
.ratio-preview > span { height: 100%; transition: width .3s var(--ease); }
.ratio-preview .r-report { background: #0369A1; }
.ratio-preview .r-peer { background: #059669; }
.ratio-preview .r-defense { background: #1E3A5F; }
.ratio-legend {
  display: flex; flex-wrap: wrap; gap: 12px 18px; font-size: 12px; color: var(--text-secondary);
  margin-bottom: 14px;
}
.ratio-legend i {
  display: inline-block; width: 8px; height: 8px; border-radius: 50%; margin-right: 6px;
  vertical-align: middle;
}
.ratio-legend .r-report { background: #0369A1; }
.ratio-legend .r-peer { background: #059669; }
.ratio-legend .r-defense { background: #1E3A5F; }
.sum-hint {
  font-size: 13px; font-weight: 600; padding: 10px 12px; border-radius: 10px;
  margin-bottom: 4px; border: 1px solid transparent;
}
.sum-hint.ok { background: #ECFDF5; color: #065F46; border-color: #A7F3D0; }
.sum-hint.bad { background: #FEF2F2; color: #991B1B; border-color: #FECACA; }

.major-panel {
  background: linear-gradient(180deg, #F0FDF4, #fff);
  border: 1px solid #A7F3D0; border-radius: 14px; padding: 16px 16px 14px;
  scroll-margin-top: 80px;
}
.major-panel .check-chip {
  border-color: #BBF7D0; background: #fff;
}
.major-panel .check-chip:has(input:checked) {
  border-color: #059669; background: #D1FAE5; color: #065F46;
  box-shadow: 0 0 0 3px rgba(5, 150, 105, .12);
}
.major-panel .check-chip input { accent-color: #059669; }

.create-split {
  display: grid; grid-template-columns: 1.2fr .9fr; gap: 16px; align-items: start;
}
@media (max-width: 900px) {
  .create-split { grid-template-columns: 1fr; }
}

@keyframes contentIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: none; }
}

/* ===== 侧栏（深蓝学术） ===== */
.sidebar {
  width: var(--sidebar-w);
  background:
    linear-gradient(180deg, #143356 0%, var(--sidebar-bg) 42%, #0B1C30 100%);
  color: var(--sidebar-fg);
  position: fixed; top: 0; bottom: 0; left: 0; z-index: 50;
  display: flex; flex-direction: column;
  transition: transform .28s var(--ease);
  box-shadow: 4px 0 24px rgba(11, 28, 48, .18);
}
.sidebar-brand {
  height: var(--topbar-h); display: flex; align-items: center; gap: 12px;
  padding: 0 18px; font-weight: 700; font-size: 15px;
  border-bottom: 1px solid rgba(255, 255, 255, .08);
  font-family: var(--font-display);
  letter-spacing: .02em; flex-shrink: 0;
}
.sidebar-brand > div:last-child {
  line-height: 1.25; overflow: hidden;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical;
}
.sidebar-brand .logo {
  width: 34px; height: 34px; border-radius: 50%;
  object-fit: cover; flex-shrink: 0; display: block;
  background: #fff;
  box-shadow: 0 2px 8px rgba(15, 39, 68, .2);
}
.sidebar-nav {
  flex: 1; overflow-y: auto; padding: 14px 12px 24px;
  overscroll-behavior: contain; -webkit-overflow-scrolling: touch;
}
.nav-group {
  margin: 16px 10px 8px; font-size: 11px; font-weight: 600;
  letter-spacing: .1em; color: var(--sidebar-muted); text-transform: uppercase;
}
.nav-item {
  display: flex; align-items: center; gap: 10px; padding: 10px 12px;
  border-radius: var(--radius-sm); color: var(--sidebar-fg);
  font-size: 14px; font-weight: 500; margin-bottom: 2px;
  transition: background .2s var(--ease), color .2s var(--ease);
  min-height: 44px; cursor: pointer;
}
.nav-item svg { width: 18px; height: 18px; flex-shrink: 0; color: var(--sidebar-muted); transition: color .2s; }
.nav-item:hover { background: var(--sidebar-hover); text-decoration: none; color: #fff; }
.nav-item:hover svg { color: #CBD5E1; }
.nav-item.active {
  background: var(--sidebar-active); color: #fff; font-weight: 600;
  box-shadow: inset 3px 0 0 #38BDF8;
}
.nav-item.active svg { color: #7DD3FC; }
.sidebar-footer {
  padding: 14px 20px; border-top: 1px solid rgba(255, 255, 255, .08);
  font-size: 12px; color: var(--sidebar-muted); line-height: 1.5; flex-shrink: 0;
}

/* 侧栏父子节点 */
.nav-parent { margin-bottom: 2px; }
.nav-parent summary {
  list-style: none; cursor: pointer;
  display: flex; align-items: center; gap: 10px; padding: 10px 12px;
  border-radius: var(--radius-sm); color: var(--sidebar-fg);
  font-size: 14px; font-weight: 500;
  min-height: 44px;
  transition: background .2s var(--ease), color .2s var(--ease);
}
.nav-parent summary::-webkit-details-marker { display: none; }
.nav-parent summary::marker { content: ""; }
.nav-parent summary:hover { background: var(--sidebar-hover); color: #fff; }
.nav-parent summary:hover svg { color: #CBD5E1; }
.nav-parent summary svg:first-child { width: 18px; height: 18px; flex-shrink: 0; color: var(--sidebar-muted); }
.nav-parent .nav-arrow { margin-left: auto; width: 14px; height: 14px; color: var(--sidebar-muted);
  transition: transform .2s var(--ease); flex-shrink: 0; }
.nav-parent[open] .nav-arrow { transform: rotate(90deg); }
.nav-parent[open] > summary { background: var(--sidebar-active); color: #fff; font-weight: 600; }
.nav-parent[open] > summary svg:first-child { color: #7DD3FC; }
.nav-sub { margin: 4px 0 8px 14px; border-left: 1px solid rgba(255, 255, 255, .12); padding-left: 8px; }
.nav-sub .nav-item { font-size: 13px; padding: 8px 10px; min-height: 40px; }
.sidebar-backdrop {
  display: none; position: fixed; inset: 0; background: rgba(15, 23, 42, .48);
  z-index: 45; backdrop-filter: blur(2px);
}
.sidebar-backdrop.show { display: block; }

/* ===== 顶栏 ===== */
.topbar {
  height: var(--topbar-h);
  background: rgba(255, 255, 255, .86);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  display: flex; align-items: center; gap: 12px; padding: 0 24px;
  position: sticky; top: 0; z-index: 40;
}
.hamburger {
  display: none; background: #fff; border: 1px solid var(--color-border);
  border-radius: 10px; width: 44px; height: 44px; align-items: center; justify-content: center;
  transition: background .2s, border-color .2s; cursor: pointer;
}
.hamburger:hover { background: var(--color-muted); }
.hamburger svg { width: 20px; height: 20px; }
.topbar-title { font-weight: 600; font-size: 15px; color: var(--color-primary); }
.topbar-right {
  margin-left: auto; display: flex; align-items: center; gap: 8px;
  flex-wrap: wrap; justify-content: flex-end;
}
.user-chip {
  display: flex; align-items: center; gap: 8px; padding: 6px 10px;
  background: var(--color-muted); border-radius: 999px; font-size: 13px; font-weight: 500;
  max-width: 280px;
}
.user-chip > span:first-child {
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 96px;
}
.role-badge {
  font-size: 11px; padding: 3px 9px; border-radius: 999px;
  background: rgba(3, 105, 161, .1); color: var(--color-secondary); font-weight: 600;
}

.act-as-banner {
  background: linear-gradient(90deg, #FEF3C7, #FFFBEB);
  color: #92400E; padding: 10px 24px; font-size: 13px;
  display: flex; align-items: center; gap: 12px; flex-wrap: wrap;
  border-bottom: 1px solid #FDE68A;
  flex-shrink: 0;
}
.act-as-banner a { color: #92400E; font-weight: 600; text-decoration: underline; }

.role-switch { position: relative; flex-shrink: 0; }
.role-switch summary {
  list-style: none; cursor: pointer; display: inline-flex; align-items: center;
  gap: 6px; padding: 8px 12px; border: 1px solid var(--color-border); border-radius: 10px;
  font-size: 13px; background: #fff; min-height: 40px; white-space: nowrap;
  transition: border-color .2s, box-shadow .2s;
}
.role-switch summary:hover { border-color: #B8C7D9; }
.role-switch summary::-webkit-details-marker { display: none; }
.role-switch .menu {
  position: absolute; right: 0; top: calc(100% + 8px);
  width: min(380px, calc(100vw - 24px));
  background: #fff; border: 1px solid var(--color-border); border-radius: 14px;
  box-shadow: var(--shadow-lg); padding: 0; z-index: 60;
  animation: menuIn .18s var(--ease); overflow: hidden;
}
@keyframes menuIn {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: none; }
}
.role-switch .menu-section {
  padding: 12px 14px 8px; font-size: 12px; font-weight: 600;
  color: var(--text-secondary);
  border-top: 1px solid var(--color-muted);
}
.role-switch .menu-section:first-child { border-top: none; padding-top: 12px; }
.role-switch .menu-quick {
  max-height: 168px; overflow-y: auto; padding: 0 8px 8px;
}
.role-switch .menu a {
  display: flex; align-items: center; gap: 8px; padding: 10px 12px;
  border-radius: 8px; font-size: 13px; color: var(--color-foreground);
  min-height: 42px; line-height: 1.35;
}
.role-switch .menu a:hover { background: var(--color-muted); text-decoration: none; }
.role-switch .menu a.active {
  background: rgba(3, 105, 161, .1); color: var(--color-secondary); font-weight: 600;
}
.role-switch .menu-search { padding: 0 12px 12px; }
.role-switch .menu-search .input { min-height: 40px; }
.role-switch .search-results {
  margin-top: 8px; max-height: 240px; border-radius: 10px;
}
.role-switch .sr-item {
  align-items: flex-start; gap: 10px; padding: 12px;
  min-height: auto;
}
.role-switch .sr-main { flex: 1; min-width: 0; }
.role-switch .sr-title {
  display: flex; flex-wrap: wrap; align-items: center; gap: 6px; margin-bottom: 4px;
}
.role-switch .sr-detail {
  font-size: 12px; color: var(--text-secondary); line-height: 1.45;
  word-break: break-all;
}
.role-switch .sr-roles {
  display: flex; flex-wrap: wrap; gap: 4px; margin-top: 6px;
}

/* ===== 按钮 ===== */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  padding: 10px 16px; border-radius: 10px; font-size: 14px; font-weight: 600;
  border: 1px solid transparent;
  transition: background .2s var(--ease), transform .15s var(--ease), box-shadow .2s, opacity .2s, border-color .2s;
  white-space: nowrap; cursor: pointer; min-height: 40px; text-decoration: none;
}
.btn:hover { text-decoration: none; }
.btn:active { transform: scale(.98); }
.btn:disabled { opacity: .5; cursor: not-allowed; transform: none; }
.btn-primary {
  background: linear-gradient(180deg, #254A73, var(--color-primary));
  color: #fff; box-shadow: 0 2px 8px rgba(30, 58, 95, .25);
}
.btn-primary:hover:not(:disabled) {
  background: linear-gradient(180deg, #2C5580, #18324F);
  color: #fff; box-shadow: 0 4px 14px rgba(30, 58, 95, .3);
}
.btn-primary:focus-visible { box-shadow: 0 0 0 3px rgba(3, 105, 161, .35); }
.btn-secondary {
  background: #fff; border-color: var(--color-border); color: var(--color-foreground);
}
.btn-secondary:hover:not(:disabled) { background: var(--color-muted); border-color: #C5D0DE; color: var(--color-foreground); }
.btn-success { background: var(--color-accent); color: #fff; }
.btn-success:hover:not(:disabled) { background: #047857; color: #fff; }
.btn-danger { background: var(--color-destructive); color: #fff; }
.btn-danger:hover:not(:disabled) { background: #B91C1C; color: #fff; }
.btn-danger-ghost { background: #FEF2F2; color: var(--color-destructive); }
.btn-danger-ghost:hover:not(:disabled) { background: #FEE2E2; }
.btn-sm { padding: 6px 12px; font-size: 13px; border-radius: 8px; min-height: 34px; }
.btn-block { width: 100%; }
.btn-lg { padding: 13px 22px; font-size: 15px; min-height: 48px; }

/* ===== 卡片 ===== */
.card {
  background: var(--color-card); border: 1px solid var(--color-border);
  border-radius: var(--radius); box-shadow: var(--shadow), var(--shadow-inset);
  padding: 22px; margin-bottom: 20px;
  transition: box-shadow .25s var(--ease), transform .2s var(--ease);
}
.card:hover { box-shadow: var(--shadow-md); }
.login-logo {
  width: 58px; height: 58px; border-radius: 50%;
  object-fit: cover; display: block;
  background: #fff;
  box-shadow: 0 6px 16px rgba(15, 39, 68, .18);
}
.card-title {
  font-size: 16px; font-weight: 700; margin-bottom: 14px;
  display: flex; align-items: center; gap: 8px; flex-wrap: wrap;
  color: var(--color-primary); font-family: var(--font-display);
}
.card-title .hint { font-size: 12px; color: var(--text-secondary); font-weight: 400; font-family: var(--font); }

.stat-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 14px; margin-bottom: 20px;
}
.stat-card {
  background: var(--color-card); border: 1px solid var(--color-border);
  border-radius: var(--radius); padding: 18px 18px 16px; box-shadow: var(--shadow);
  position: relative; overflow: hidden;
  transition: transform .22s var(--ease), box-shadow .22s var(--ease);
}
.stat-card::before {
  content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 3px;
  background: linear-gradient(180deg, var(--color-secondary), var(--color-primary));
  opacity: .85;
}
.stat-card:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(15, 39, 68, .1); }
.stat-card .label { font-size: 13px; color: var(--text-secondary); margin-bottom: 6px; font-weight: 500; }
.stat-card .value { font-size: 28px; font-weight: 700; font-variant-numeric: tabular-nums; color: var(--color-primary); }
.stat-card .value small { font-size: 14px; color: var(--text-secondary); font-weight: 400; }
.stat-card .meta { font-size: 12px; color: var(--text-secondary); margin-top: 8px; white-space: nowrap; }

/* 统一看板（状态 / KPI） */
.board-section { margin-bottom: 22px; }
.board-section-title {
  font-size: 13px; font-weight: 600; color: var(--text-secondary);
  letter-spacing: .04em; text-transform: none; margin: 0 0 10px 2px;
}
.board-grid {
  display: grid; gap: 14px; margin-bottom: 20px;
  align-items: stretch;
}
.board-grid.cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.board-grid.cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.board-card {
  background: var(--color-card); border: 1px solid var(--color-border);
  border-radius: var(--radius); padding: 16px 18px;
  box-shadow: var(--shadow); position: relative; overflow: hidden;
  display: flex; flex-direction: column; gap: 8px; min-height: 118px;
  transition: transform .22s var(--ease), box-shadow .22s var(--ease), border-color .22s;
}
.board-card::before {
  content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 3px;
  background: linear-gradient(180deg, var(--color-secondary), var(--color-primary));
  opacity: .85;
}
.board-card:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(15, 39, 68, .1); }
.board-card.tone-ok::before { background: linear-gradient(180deg, #34D399, #059669); }
.board-card.tone-warn::before { background: linear-gradient(180deg, #FBBF24, #B45309); }
.board-card.tone-err::before { background: linear-gradient(180deg, #F87171, #DC2626); }
.board-card.tone-info::before { background: linear-gradient(180deg, #38BDF8, #0369A1); }
.board-label {
  font-size: 13px; line-height: 1.4; font-weight: 500;
  color: var(--text-secondary);
}
.board-status {
  font-size: 18px; line-height: 1.35; font-weight: 600;
  color: var(--color-foreground); letter-spacing: .01em;
  display: flex; align-items: center; min-height: 28px;
}
.board-status-sm { font-size: 16px; font-weight: 600; }
.board-kpi {
  font-size: 26px; line-height: 1.2; font-weight: 700;
  font-variant-numeric: tabular-nums; color: var(--color-primary);
}
.board-kpi small {
  font-size: 14px; color: var(--text-secondary); font-weight: 500;
}
.board-meta {
  margin-top: auto; font-size: 12px; line-height: 1.5;
  color: var(--text-secondary); white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.board-meta.muted { opacity: .72; }
.kpi-card .bar,
.board-card .bar,
.stat-card .bar {
  height: 6px; border-radius: 3px; background: var(--color-muted);
  margin-top: 4px; overflow: hidden;
}
.kpi-card .bar > div,
.board-card .bar > div,
.stat-card .bar > div {
  height: 100%;
  background: linear-gradient(90deg, var(--color-secondary), var(--color-primary));
  border-radius: 3px; transition: width .45s var(--ease);
}

.student-hero .page-sub { max-width: none; }
.ratio-chip {
  display: inline-flex; flex-wrap: wrap; align-items: center; gap: 6px 8px;
  margin-top: 12px; padding: 8px 12px; border-radius: 999px;
  background: rgba(3, 105, 161, .08); color: var(--color-primary);
  font-size: 13px; font-weight: 500; line-height: 1.4;
  max-width: 100%;
}
.ratio-chip .sep { color: var(--text-secondary); font-weight: 400; }
.flow-card { overflow: hidden; }

/* 截止时间徽标 */
.deadline-wrap { margin-top: 10px; }
.deadline-tag {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 4px 12px; border-radius: 999px;
  background: #FEF2F2; color: #DC2626; font-weight: 600;
  font-size: 13px; white-space: normal; line-height: 1.5;
  max-width: 100%;
}
.deadline-tag svg { width: 13px; height: 13px; flex-shrink: 0; }

/* 状态色点 */
.status-dot {
  display: inline-block; width: 8px; height: 8px; border-radius: 50%;
  margin-right: 8px; flex-shrink: 0;
}
.status-dot.ok { background: var(--color-success); box-shadow: 0 0 0 3px rgba(5, 150, 105, .2); }
.status-dot.warn { background: var(--color-warning); box-shadow: 0 0 0 3px rgba(180, 83, 9, .18); }
.status-dot.err { background: var(--color-destructive); box-shadow: 0 0 0 3px rgba(220, 38, 38, .15); }

/* 流程步骤条 */
.flow-steps {
  display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px;
  margin-bottom: 0;
}
.flow-step {
  background: linear-gradient(180deg, #F8FBFF, #fff);
  border: 1px solid var(--color-border);
  border-radius: var(--radius); padding: 16px;
  display: flex; flex-direction: column; gap: 8px; min-height: 168px;
  transition: transform .22s var(--ease), border-color .22s, box-shadow .22s;
}
.flow-step:hover { transform: translateY(-2px); border-color: #B8C9DC; box-shadow: var(--shadow); }
.flow-step .step-head {
  display: flex; align-items: center; justify-content: space-between; gap: 8px;
}
.flow-step .step-idx {
  width: 28px; height: 28px; border-radius: 8px;
  background: rgba(30, 58, 95, .08); color: var(--color-primary);
  display: flex; align-items: center; justify-content: center;
  font-size: 13px; font-weight: 700; flex-shrink: 0;
}
.flow-step .step-title { font-weight: 700; font-size: 15px; color: var(--color-foreground); line-height: 1.4; }
.flow-step .step-desc { font-size: 12px; color: var(--text-secondary); line-height: 1.5; min-height: 36px; }
.flow-step .step-actions { margin-top: auto; padding-top: 6px; }

/* 导出页层级 */
.export-primary-card { border-color: #B8D4EA; background: linear-gradient(180deg, #F7FBFF, #fff); }
.export-lead { font-size: 14px; color: var(--text-secondary); margin: 0 0 14px; line-height: 1.7; max-width: 62ch; }
.btn-lg { min-height: 44px; padding: 10px 18px; font-size: 15px; }
.export-secondary-card { padding: 0; }
.export-secondary-summary {
  list-style: none; cursor: pointer; display: flex; align-items: center;
  justify-content: space-between; gap: 12px; padding: 18px 22px;
  user-select: none;
}
.export-secondary-summary::-webkit-details-marker { display: none; }
.export-secondary-caret {
  font-size: 12px; color: var(--text-secondary); font-weight: 500;
  padding: 4px 10px; border-radius: 999px; background: var(--color-muted);
}
.export-secondary-caret::before { content: "展开"; }
.export-secondary-card[open] .export-secondary-caret {
  background: #E0F2FE; color: #075985;
}
.export-secondary-card[open] .export-secondary-caret::before { content: "收起"; }
.export-secondary-body { padding: 0 22px 22px; border-top: 1px solid var(--color-muted); padding-top: 16px; }
.export-item-grid { display: flex; gap: 10px; flex-wrap: wrap; }

/* ===== 表格 ===== */
.table-wrap {
  overflow-x: auto; -webkit-overflow-scrolling: touch;
  overscroll-behavior-x: contain;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm); background: #fff;
  max-width: 100%;
}
.table-wrap > table.table { min-width: 520px; }
table.table { width: 100%; border-collapse: collapse; background: #fff; font-size: 14px; }
table.table th, table.table td {
  padding: 12px 14px; text-align: left; border-bottom: 1px solid var(--color-muted);
}
table.table th {
  background: linear-gradient(180deg, #F7F9FC, var(--color-muted));
  font-weight: 600; font-size: 13px; white-space: nowrap; color: var(--color-primary);
}
table.table tr:last-child td { border-bottom: none; }
table.table tbody tr { transition: background .15s; }
table.table tbody tr:hover { background: #F7FBFF; }
table.table .num { font-variant-numeric: tabular-nums; }
.toolbar { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; margin-bottom: 16px; }

/* ===== 徽章 ===== */
.badge {
  display: inline-flex; align-items: center; padding: 3px 10px; border-radius: 999px;
  font-size: 12px; font-weight: 600; letter-spacing: .01em;
  max-width: 100%; line-height: 1.35;
  overflow-wrap: anywhere; word-break: break-word;
}
.badge-green { background: #D1FAE5; color: #065F46; }
.badge-red { background: #FEE2E2; color: #991B1B; }
.badge-blue { background: #E0F2FE; color: #075985; }
.badge-gray { background: var(--color-muted); color: var(--text-secondary); }
.badge-amber { background: #FEF3C7; color: #92400E; }

/* ===== 表单 ===== */
.form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 14px; }
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: 13px; font-weight: 600; margin-bottom: 6px; color: #334155; }
.form-group label .req { color: var(--color-destructive); }
.form-group .hint { font-size: 12px; color: var(--text-secondary); margin-top: 5px; }
.input, select.input, textarea.input {
  width: 100%; padding: 10px 12px; border: 1px solid var(--color-border);
  border-radius: 10px; background: #fff; outline: none;
  transition: border .2s, box-shadow .2s; min-height: 44px;
}
.input:focus, select.input:focus, textarea.input:focus {
  border-color: var(--color-ring);
  box-shadow: 0 0 0 3px rgba(3, 105, 161, .16);
}
textarea.input { resize: vertical; min-height: 90px; }

/* ===== 弹窗 ===== */
.modal-backdrop {
  position: fixed; inset: 0; background: rgba(15, 23, 42, .5); z-index: 100;
  display: flex; align-items: center; justify-content: center; padding: 20px;
  backdrop-filter: blur(3px);
  animation: fadeIn .2s ease;
}
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
.modal {
  background: #fff; border-radius: 16px; box-shadow: var(--shadow-lg); width: 100%;
  max-width: 560px; max-height: 90dvh; display: flex; flex-direction: column;
  animation: modalIn .25s var(--ease);
}
@keyframes modalIn {
  from { opacity: 0; transform: translateY(10px) scale(.98); }
  to { opacity: 1; transform: none; }
}
.modal-lg { max-width: 820px; }
.modal-header {
  padding: 16px 20px; border-bottom: 1px solid var(--color-muted);
  display: flex; align-items: center; justify-content: space-between;
}
.modal-title { font-weight: 700; font-size: 16px; font-family: var(--font-display); color: var(--color-primary); }
.modal-body { padding: 20px; overflow-y: auto; }
.modal-footer {
  padding: 14px 20px; border-top: 1px solid var(--color-muted);
  display: flex; justify-content: flex-end; gap: 10px;
}
.modal-close {
  background: none; border: none; font-size: 22px; line-height: 1;
  color: var(--text-secondary); width: 40px; height: 40px; border-radius: 8px;
  cursor: pointer;
}
.modal-close:hover { color: var(--color-foreground); background: var(--color-muted); }
[hidden] { display: none !important; }

/* ===== 确认 / 提示弹窗 ===== */
.dialog-backdrop {
  z-index: 220;
  padding: 16px;
}
.dialog {
  max-width: 420px;
  width: 100%;
}
.dialog-body {
  display: flex; gap: 14px; align-items: flex-start; padding: 22px 20px 8px;
}
.dialog-icon {
  width: 42px; height: 42px; border-radius: 12px; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
}
.dialog-icon svg { width: 22px; height: 22px; }
.dialog-icon.info { background: #E0F2FE; color: #0369A1; }
.dialog-icon.success { background: #D1FAE5; color: #047857; }
.dialog-icon.warning { background: #FEF3C7; color: #B45309; }
.dialog-icon.danger { background: #FEE2E2; color: #DC2626; }
.dialog-copy { flex: 1; min-width: 0; }
.dialog-heading {
  font-family: var(--font-display); font-size: 16px; font-weight: 700;
  color: var(--color-primary); margin-bottom: 6px; line-height: 1.35;
}
.dialog-message {
  font-size: 14px; line-height: 1.65; color: #334155; white-space: pre-wrap; word-break: break-word;
}
.dialog-highlight {
  margin-top: 12px; padding: 10px 12px; border-radius: 10px;
  background: var(--color-muted); border: 1px solid var(--color-border);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 15px; font-weight: 600; letter-spacing: .04em;
  color: var(--color-primary); text-align: center; user-select: all;
}
.dialog-footer {
  border-top: none; padding-top: 8px; padding-bottom: 18px;
}
@media (prefers-reduced-motion: reduce) {
  .modal, .dialog, .modal-backdrop, .toast { animation: none !important; }
}

/* ===== 提示 ===== */
.toast-wrap {
  position: fixed; top: 16px; right: 16px; z-index: 200;
  display: flex; flex-direction: column; gap: 10px;
}
.toast {
  padding: 12px 18px; border-radius: 12px; background: #fff; box-shadow: var(--shadow-lg);
  border-left: 4px solid var(--color-secondary); font-size: 14px;
  min-width: 240px; max-width: 360px; animation: slideIn .25s var(--ease);
}
.toast.success { border-color: var(--color-success); }
.toast.error { border-color: var(--color-destructive); }
.toast.info { border-color: var(--color-secondary); }
@keyframes slideIn {
  from { transform: translateX(20px); opacity: 0; }
  to { transform: none; opacity: 1; }
}

.alert {
  padding: 12px 16px; border-radius: 12px; font-size: 14px; margin-bottom: 16px;
  border: 1px solid transparent;
}
.alert-info { background: #E0F2FE; color: #075985; border-color: #BAE6FD; }
.alert-success { background: #D1FAE5; color: #065F46; border-color: #A7F3D0; }
.alert-error { background: #FEE2E2; color: #991B1B; border-color: #FECACA; }
.alert-warning { background: #FEF3C7; color: #92400E; border-color: #FDE68A; }

/* ===== 拖拽上传 ===== */
.dropzone {
  border: 2px dashed #B8C9DC; border-radius: var(--radius);
  padding: 40px 20px; text-align: center; background: #F8FBFF;
  transition: border .2s, background .2s, transform .2s; cursor: pointer;
}
.dropzone:hover { border-color: var(--color-secondary); }
.dropzone.dragover {
  border-color: var(--color-secondary); background: #E0F2FE;
  transform: scale(1.01);
}
.dropzone .dz-icon { width: 48px; height: 48px; margin: 0 auto 12px; color: var(--color-secondary); }
.dropzone .dz-title { font-weight: 600; margin-bottom: 4px; }
.dropzone .dz-sub { font-size: 13px; color: var(--text-secondary); }

/* ===== 互评 ===== */
.peer-rules {
  background: #ECFDF5; border: 1px solid #A7F3D0; border-radius: var(--radius-sm);
  padding: 12px 16px; font-size: 13px; margin-bottom: 16px;
}
.peer-rules b { color: #065F46; }
.peer-counter { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 14px; }
.peer-counter .chip {
  padding: 6px 14px; border-radius: 999px; font-size: 13px; font-weight: 600;
  background: var(--color-muted); color: var(--text-secondary); min-height: 36px;
  display: inline-flex; align-items: center;
}
.peer-counter .chip.over { background: #FEE2E2; color: var(--color-destructive); }
.peer-counter .chip.ok { background: #D1FAE5; color: #065F46; }
.peer-row {
  display: flex; align-items: center; gap: 10px; padding: 12px 14px;
  border-bottom: 1px solid var(--color-muted);
  transition: background .15s;
}
.peer-row:hover { background: #F8FBFF; }
.peer-row:last-child { border-bottom: none; }
.peer-row .p-name { font-weight: 600; min-width: 80px; }
.peer-row .p-no { color: var(--text-secondary); font-size: 13px; flex: 1; }
.radio-group { display: flex; gap: 6px; }
.radio-group label {
  display: inline-flex; align-items: center; gap: 5px; padding: 8px 12px;
  border: 1px solid var(--color-border); border-radius: 8px; font-size: 13px; cursor: pointer;
  transition: all .2s var(--ease); user-select: none; min-height: 40px;
}
.radio-group label:has(input:checked) {
  border-color: var(--color-secondary); background: #E0F2FE;
  color: #075985; font-weight: 600;
}
.radio-group label.opt-excellent:has(input:checked) {
  border-color: var(--color-success); background: #D1FAE5; color: #065F46;
}
.radio-group label.opt-good:has(input:checked) {
  border-color: var(--color-secondary); background: #E0F2FE; color: #075985;
}
.radio-group label.opt-qualified:has(input:checked) {
  border-color: var(--color-warning); background: #FEF3C7; color: #92400E;
}
.radio-group input { display: none; }

/* ===== 打分 ===== */
.score-stage { display: flex; flex-direction: column; align-items: center; padding: 30px 0; }
.score-options { display: flex; gap: 14px; margin: 22px 0; flex-wrap: wrap; justify-content: center; }
.score-btn {
  width: 120px; height: 96px; border-radius: var(--radius); border: 2px solid var(--color-border);
  background: #fff; font-size: 24px; font-weight: 700; color: var(--color-foreground);
  transition: all .2s var(--ease); display: flex; flex-direction: column;
  align-items: center; justify-content: center; gap: 4px; cursor: pointer;
}
.score-btn small { font-size: 12px; color: var(--text-secondary); font-weight: 500; }
.score-btn:hover:not(:disabled) {
  border-color: var(--color-secondary); transform: translateY(-3px); box-shadow: var(--shadow);
}
.score-btn:disabled { opacity: .35; cursor: not-allowed; }
.score-btn.checked {
  border-color: var(--color-secondary); background: #E0F2FE; color: var(--color-secondary);
}
.defense-score-95 { border-color: var(--color-accent); color: var(--color-accent); }
.defense-score-95.checked { background: #D1FAE5; }
.defense-score-90 { border-color: var(--color-secondary); color: var(--color-secondary); }
.defense-score-90.checked { background: #E0F2FE; }
.defense-score-85 { border-color: var(--color-warning); color: var(--color-warning); }
.defense-score-85.checked { background: #FEF3C7; }

.progress-top { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; }
.progress-top .pbar { flex: 1; }
.pbar { height: 8px; background: var(--color-muted); border-radius: 4px; overflow: hidden; }
.pbar > div {
  height: 100%;
  background: linear-gradient(90deg, var(--color-secondary), var(--color-primary));
  border-radius: 4px; transition: width .4s var(--ease);
}

.timer-ring {
  width: 56px; height: 56px; border-radius: 50%; border: 4px solid var(--color-border);
  border-top-color: var(--color-secondary); display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 18px; margin-bottom: 14px; animation: spin 1.2s linear infinite;
}
.timer-ring.done { animation: none; border-color: var(--color-success); color: var(--color-success); }
@keyframes spin { to { transform: rotate(360deg); } }

.pdf-frame {
  width: 100%; height: 62dvh; border: 1px solid var(--color-border);
  border-radius: var(--radius-sm); background: #fff;
}

/* ===== 报告打分：整页锁定 + PDF 单页适配 + 底部直接打分 ===== */
body.no-page-scroll,
body.grading-mode {
  overflow: hidden !important;
  height: 100dvh;
  max-height: 100dvh;
  overscroll-behavior: none;
  touch-action: manipulation;
}
body.no-page-scroll .main,
body.grading-mode .main {
  height: 100dvh; max-height: 100dvh; overflow: hidden;
  display: flex; flex-direction: column;
}
body.no-page-scroll .content,
body.grading-mode .content {
  flex: 1; min-height: 0;
  display: flex; flex-direction: column;
  overflow: hidden;
  padding: 8px 10px calc(8px + var(--safe-bottom));
  max-width: none; width: 100%;
  animation: none;
}
body.no-page-scroll .topbar,
body.grading-mode .topbar { flex-shrink: 0; }
body.grading-mode .content > .alert {
  flex-shrink: 0; margin-bottom: 8px; padding: 8px 12px; font-size: 13px;
}

.grading-report-page {
  flex: 1; min-height: 0; display: flex; flex-direction: column; gap: 8px;
  overflow: hidden;
}
.grading-immersive { gap: 8px; }
.grading-toolbar {
  flex-shrink: 0;
  display: flex; align-items: center; gap: 8px;
  padding: 8px 10px;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  box-shadow: var(--shadow);
  min-width: 0;
}
.grading-toolbar-meta { min-width: 0; flex: 1; display: flex; flex-direction: column; gap: 6px; }
.grading-toolbar-sub {
  font-size: 12px; color: var(--text-secondary);
  display: flex; flex-wrap: wrap; gap: 4px 6px; align-items: center;
  line-height: 1.35; min-width: 0;
}
.grading-toolbar-sub b { color: var(--color-primary); font-variant-numeric: tabular-nums; }
.grading-toolbar-sub .sep { opacity: .45; }
.grading-toolbar-progress { width: 100%; max-width: 240px; }
.grading-toolbar-actions {
  display: flex; gap: 6px; flex-shrink: 0; align-items: center;
}
.grading-toolbar-actions .btn { min-height: 36px; padding: 6px 10px; }

.grading-pdf-stage {
  flex: 1; min-height: 0; position: relative;
  background: #D7E0EA; border: 1px solid var(--color-border);
  border-radius: var(--radius); box-shadow: var(--shadow);
  overflow: hidden;
  display: flex; flex-direction: column;
}
.grading-pdf-loading {
  position: absolute; inset: 0; display: flex; align-items: center; justify-content: center;
  color: var(--text-secondary); font-size: 14px; background: #F8FAFC; z-index: 3;
}
.grading-pdf-scroll {
  flex: 1; min-height: 0; width: 100%;
  overflow: auto; overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
  display: flex; justify-content: center; align-items: flex-start;
  padding: 8px 8px 52px;
  box-sizing: border-box;
}
.pdf-fit-canvas {
  display: block;
  width: auto; height: auto;
  max-width: none; max-height: none;
  background: #fff;
  box-shadow: 0 2px 16px rgba(15, 39, 68, .18);
  border-radius: 2px;
}
.pdf-blob-frame {
  flex: 1; width: 100%; height: 100%; min-height: 0;
  border: none; background: #fff;
}
.pdf-fallback {
  flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 12px; padding: 20px; color: var(--text-secondary); text-align: center;
  font-size: 14px;
}
.grading-page-nav {
  position: absolute; left: 50%; bottom: 8px; transform: translateX(-50%);
  z-index: 2;
  display: flex; align-items: center; gap: 6px;
  padding: 4px 8px;
  background: rgba(255, 255, 255, .96);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  box-shadow: var(--shadow);
  font-size: 12px; font-weight: 600; color: var(--color-primary);
  white-space: nowrap;
  max-width: calc(100% - 16px);
}
.grading-page-nav .nav-divider {
  width: 1px; height: 16px; background: var(--color-border); margin: 0 2px;
}
.grading-page-nav .btn { min-height: 32px; min-width: 32px; padding: 4px 10px; font-size: 12px; }
.grading-page-nav .btn:disabled { opacity: .4; }

/* 底部打分条：尽量紧凑，把空间留给报告 */
.grading-scorebar {
  flex-shrink: 0;
  display: flex; flex-direction: column; gap: 6px;
  padding: 8px;
  background: rgba(255, 255, 255, .97);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  box-shadow: var(--shadow-md);
}
.grading-scorebar-status {
  display: flex; align-items: center; justify-content: center; gap: 8px;
  font-size: 12px; color: var(--text-secondary); text-align: center;
  line-height: 1.4; flex-wrap: wrap;
}
.timer-pill {
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 40px; height: 24px; padding: 0 8px;
  border-radius: 999px; font-weight: 700; font-size: 12px;
  background: #E0F2FE; color: #075985;
  font-variant-numeric: tabular-nums;
}
.timer-pill.done { background: #D1FAE5; color: #065F46; }
.grading-scorebar-btns {
  display: flex; gap: 8px; width: 100%; margin: 0; flex-wrap: nowrap;
}
.grading-scorebar-btns .score-btn {
  flex: 1; width: auto; min-width: 0; height: 52px; margin: 0;
  font-size: 22px;
}
.grading-scorebar-btns .score-btn small { font-size: 11px; }

/* 历史悬浮窗 */
.grading-float {
  position: fixed; inset: 0; z-index: 120;
  display: flex; align-items: flex-end; justify-content: center;
  padding: 0;
}
.grading-float[hidden] { display: none !important; }
.grading-float-backdrop {
  position: absolute; inset: 0;
  background: rgba(15, 23, 42, .45);
  backdrop-filter: blur(2px);
  animation: fadeIn .2s ease;
}
.grading-float-panel {
  position: relative; z-index: 1;
  width: min(440px, 100%);
  max-height: min(80dvh, 640px);
  background: #fff;
  border-radius: 18px 18px 0 0;
  box-shadow: var(--shadow-lg);
  display: flex; flex-direction: column;
  animation: gradingSheetIn .28s var(--ease);
  padding-bottom: var(--safe-bottom);
  overflow: hidden;
}
.grading-float-panel-lg { width: min(560px, 100%); }
@keyframes gradingSheetIn {
  from { opacity: 0; transform: translateY(18px); }
  to { opacity: 1; transform: none; }
}
.grading-float-head {
  display: flex; align-items: center; justify-content: space-between;
  gap: 10px; padding: 14px 16px 10px;
  border-bottom: 1px solid var(--color-muted);
  flex-shrink: 0;
}
.grading-float-title {
  font-weight: 700; font-size: 16px;
  font-family: var(--font-display); color: var(--color-primary);
}
.grading-float-body {
  padding: 14px 16px 18px;
  overflow-y: auto; overscroll-behavior: contain;
  display: flex; flex-direction: column; align-items: center;
  min-height: 0;
}
.answer-sheet-float {
  width: 100%; margin-top: 0; padding-top: 0; border-top: none;
}
.answer-sheet-float .sheet-grid {
  max-height: min(48dvh, 380px);
}
body.grading-float-open { overflow: hidden; }

@media (min-width: 901px) {
  .grading-float {
    align-items: center; padding: 24px;
  }
  .grading-float-panel {
    border-radius: 16px;
    padding-bottom: 0;
    max-height: min(82dvh, 640px);
  }
  .grading-scorebar {
    flex-direction: row; align-items: center; justify-content: space-between;
    padding: 6px 12px;
    gap: 12px;
  }
  .grading-scorebar-status { justify-content: flex-start; flex: 1; margin: 0; }
  .grading-scorebar-btns { width: auto; min-width: 260px; max-width: 320px; }
  .grading-scorebar-btns .score-btn { height: 48px; font-size: 20px; }
}

/* 打分页：压缩顶栏，减少手机端拥挤 */
body.grading-mode .topbar-title { font-size: 14px; }
body.grading-mode .user-chip { display: none; }
@media (max-width: 860px) {
  body.grading-mode .topbar-right .btn-sm { padding: 6px 8px; font-size: 12px; }
  body.grading-mode .mobile-user-label { display: none !important; }
  body.grading-mode .content {
    padding: 6px 8px calc(6px + var(--safe-bottom));
  }
  .grading-scorebar-btns .score-btn { height: 58px; font-size: 24px; }
  .grading-toolbar { padding: 6px 8px; border-radius: 10px; }
  .grading-scorebar { border-radius: 12px; padding: 8px; }
}

/* ===== 答题卡（历史分数） ===== */
.answer-sheet {
  width: 100%; margin-top: 22px; padding-top: 18px;
  border-top: 1px dashed var(--color-border);
}
.answer-sheet .sheet-title {
  font-size: 13px; font-weight: 600; color: var(--text-secondary);
  margin-bottom: 10px; display: flex; align-items: center; justify-content: space-between; gap: 8px; flex-wrap: wrap;
}
.answer-sheet .sheet-legend { font-size: 12px; color: var(--text-secondary); display: flex; gap: 10px; flex-wrap: wrap; }
.answer-sheet .sheet-legend .lg { display: inline-flex; align-items: center; gap: 4px; }
.answer-sheet .sheet-legend .dot { width: 12px; height: 12px; border-radius: 3px; display: inline-block; }
.sheet-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(38px, 1fr));
  gap: 6px; max-height: min(32dvh, 240px); overflow-y: auto;
  padding: 4px 2px; overscroll-behavior: contain;
}
.sheet-cell {
  aspect-ratio: 1; border-radius: 8px; display: flex; align-items: center;
  justify-content: center; font-size: 13px; font-weight: 700;
  background: var(--color-muted); color: var(--text-secondary);
  border: 1px solid var(--color-border);
  transition: transform .15s var(--ease), box-shadow .15s var(--ease);
  position: relative;
}
.sheet-cell:hover { transform: scale(1.06); box-shadow: var(--shadow); }
.sheet-cell .sheet-no { font-size: 9px; font-weight: 500; position: absolute; top: 2px; left: 4px; color: rgba(100,116,139,.7); }
.sheet-cell.scored-100 { background: #DCFCE7; color: #166534; border-color: #86EFAC; }
.sheet-cell.scored-90 { background: #FEF9C3; color: #854D0E; border-color: #FDE047; }
.sheet-cell.current { outline: 3px solid var(--color-secondary); outline-offset: 2px; }
@media (max-width: 1024px) {
  .sheet-grid { grid-template-columns: repeat(auto-fill, minmax(44px, 1fr)); }
}
.pdf-empty {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  height: 62dvh; border: 1px dashed var(--color-border); border-radius: var(--radius-sm);
  color: var(--text-secondary); gap: 10px;
}

/* ===== 成员列表/顺序 ===== */
.order-row {
  display: flex; align-items: center; gap: 12px; padding: 10px 12px;
  border: 1px solid var(--color-border); border-radius: 10px; margin-bottom: 8px;
  background: #fff; transition: border-color .2s, box-shadow .2s;
}
.order-row:hover { border-color: #B8C9DC; box-shadow: var(--shadow); }
.order-row .order-no {
  width: 28px; height: 28px; border-radius: 50%;
  background: linear-gradient(145deg, #0369A1, #1E3A5F);
  color: #fff; display: flex; align-items: center; justify-content: center;
  font-size: 13px; font-weight: 700; flex-shrink: 0;
}
.order-row .o-name { font-weight: 600; }
.order-row .o-info { color: var(--text-secondary); font-size: 13px; flex: 1; }
.order-row .o-actions { display: flex; gap: 6px; }

/* ===== 搜索选择器 ===== */
.search-box { display: flex; gap: 8px; margin-bottom: 12px; }
.search-results {
  max-height: 280px; overflow-y: auto; border: 1px solid var(--color-border);
  border-radius: var(--radius-sm); background: #fff;
}
.search-results .sr-item {
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 14px; border-bottom: 1px solid var(--color-muted); cursor: pointer;
  min-height: 44px; transition: background .15s;
}
.search-results .sr-item:hover { background: #E0F2FE; }
.search-results .sr-item:last-child { border-bottom: none; }

/* ===== 空态 & 分页 ===== */
.empty { text-align: center; padding: 56px 20px; color: var(--text-secondary); }
.empty svg { width: 44px; height: 44px; color: #94A3B8; margin-bottom: 10px; }
.pagination { display: flex; gap: 6px; margin-top: 16px; flex-wrap: wrap; }
.pagination a, .pagination span {
  padding: 8px 12px; border: 1px solid var(--color-border);
  border-radius: 8px; font-size: 13px; background: #fff; min-width: 36px; text-align: center;
  transition: background .15s, border-color .15s;
}
.pagination a:hover { background: var(--color-muted); text-decoration: none; }
.pagination .current {
  background: var(--color-primary); color: #fff; border-color: var(--color-primary);
}

/* ===== 催促消息 ===== */
.urge-box { width: 100%; min-height: 220px; font-family: "SF Mono", Consolas, monospace; font-size: 13px; }

/* ===== 登录页（分栏品牌） ===== */
.login-page {
  min-height: 100dvh; display: grid; grid-template-columns: 1.05fr 1fr;
  background: var(--color-background); position: relative;
}
.login-brand-pane {
  position: relative; overflow: hidden; color: #fff;
  display: flex; flex-direction: column; justify-content: space-between;
  padding: 48px 52px;
  background:
    radial-gradient(ellipse 90% 70% at 10% 0%, rgba(56, 189, 248, .22), transparent 55%),
    radial-gradient(ellipse 70% 50% at 100% 100%, rgba(3, 105, 161, .35), transparent 50%),
    linear-gradient(155deg, #0B1C30 0%, #143356 45%, #0F2744 100%);
}
.login-brand-pane::before {
  content: ""; position: absolute; inset: 0; opacity: .28; pointer-events: none;
  background-image:
    linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px);
  background-size: 44px 44px;
}
.login-brand-pane > * { position: relative; z-index: 1; }
.login-brand-mark {
  display: flex; align-items: center; gap: 12px; font-weight: 600; font-size: 15px;
}
.login-brand-mark .logo {
  width: 42px; height: 42px; border-radius: 50%;
  object-fit: cover; display: block; background: #fff;
  box-shadow: 0 6px 18px rgba(0, 0, 0, .25);
}
.login-brand-hero {
  margin: 48px 0 auto;
  animation: contentIn .5s var(--ease);
}
.login-brand-hero .uni {
  font-family: var(--font-display); font-size: clamp(32px, 4vw, 44px);
  font-weight: 700; line-height: 1.25; letter-spacing: .02em; margin-bottom: 14px;
}
.login-brand-hero .product {
  font-size: 18px; opacity: .92; margin-bottom: 18px; font-weight: 500;
}
.login-brand-hero .tagline {
  font-size: 14px; line-height: 1.75; opacity: .72; max-width: 36ch;
}
.login-brand-feats {
  display: grid; gap: 10px; margin-top: 28px; max-width: 360px;
}
.login-brand-feats li {
  list-style: none; display: flex; align-items: center; gap: 10px;
  font-size: 13px; opacity: .85;
}
.login-brand-feats li::before {
  content: ""; width: 6px; height: 6px; border-radius: 50%;
  background: #38BDF8; box-shadow: 0 0 0 3px rgba(56, 189, 248, .25); flex-shrink: 0;
}
.login-brand-foot { font-size: 12px; opacity: .55; }

.login-form-pane {
  display: flex; align-items: center; justify-content: center;
  padding: 40px 28px;
  background:
    radial-gradient(800px 400px at 80% 0%, rgba(3, 105, 161, .06), transparent 50%),
    #F8FAFC;
}
.login-card {
  width: 100%; max-width: 420px;
  background: #fff; border-radius: 20px;
  box-shadow: var(--shadow-md); padding: 36px 34px;
  border: 1px solid var(--color-border);
  animation: contentIn .4s var(--ease) .05s both;
}
.login-card .login-logo { display: none; }
.login-brand {
  font-family: var(--font-display);
  font-size: 24px; font-weight: 700; margin-bottom: 6px; color: var(--color-primary);
  text-align: left;
}
.login-sub {
  text-align: left; color: var(--text-secondary); font-size: 14px; margin-bottom: 26px;
}
.login-tip {
  margin-top: 22px; font-size: 12px; color: var(--text-secondary);
  background: linear-gradient(180deg, #F8FAFC, var(--color-muted));
  border-radius: 12px; padding: 12px 14px; line-height: 1.85;
  border: 1px solid var(--color-border);
}
.login-tip strong { color: var(--color-primary); font-weight: 600; }

/* ===== 响应式：Pad（≤1024） / 手机（≤640） ===== */

/* —— Pad / 小桌面：侧栏收起为抽屉 —— */
@media (max-width: 1024px) {
  .main { margin-left: 0; }
  .sidebar {
    transform: translateX(-100%);
    box-shadow: var(--shadow-lg);
    width: min(var(--sidebar-w), calc(100vw - 48px));
    padding-top: var(--safe-top);
    padding-bottom: var(--safe-bottom);
    padding-left: var(--safe-left);
  }
  .sidebar.open { transform: none; }
  .hamburger { display: inline-flex; }
  .content {
    padding: 18px 18px calc(48px + var(--safe-bottom));
    max-width: none;
  }
  .topbar {
    padding: 0 16px;
    padding-left: calc(16px + var(--safe-left));
    padding-right: calc(16px + var(--safe-right));
    height: calc(var(--topbar-h) + var(--safe-top));
    padding-top: var(--safe-top);
  }
  .page-title { font-size: 24px; }
  .page-hero { padding: 18px 20px; }
  .stat-grid { grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); }
  .board-grid.cols-3,
  .board-grid.cols-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .flow-steps { grid-template-columns: 1fr 1fr; }
  .flow-step { min-height: 0; }
  .form-section { padding: 18px 18px; }
  .card { padding: 18px; }
  .modal { max-height: calc(94dvh - var(--safe-top) - var(--safe-bottom)); }
  .modal-backdrop { padding: max(16px, var(--safe-top)) 16px max(16px, var(--safe-bottom)); }
  .act-as-banner { padding: 10px 16px; }
  .peer-counter.sticky { top: calc(var(--topbar-h) + var(--safe-top) + 4px); }
  .toast-wrap {
    top: calc(12px + var(--safe-top));
    right: calc(12px + var(--safe-right));
    left: auto;
  }
  .role-switch .menu {
    width: min(360px, calc(100vw - 24px - var(--safe-left) - var(--safe-right)));
  }
}

/* —— 登录：Pad 起改为单栏 —— */
@media (max-width: 960px) {
  .login-page { grid-template-columns: 1fr; }
  .login-brand-pane {
    padding: 28px 24px max(28px, var(--safe-bottom));
    padding-top: calc(28px + var(--safe-top));
    min-height: auto;
  }
  .login-brand-hero { margin: 28px 0 20px; }
  .login-brand-hero .uni { font-size: clamp(24px, 6vw, 30px); }
  .login-brand-feats { display: none; }
  .login-brand-foot { display: none; }
  .login-form-pane {
    padding: 24px 16px calc(40px + var(--safe-bottom));
    padding-left: max(16px, var(--safe-left));
    padding-right: max(16px, var(--safe-right));
  }
  .login-card { padding: 28px 22px; box-shadow: var(--shadow-lg); max-width: 440px; }
  .login-card .login-logo { display: block; margin: 0 auto 14px; }
  .login-brand, .login-sub { text-align: center; }
}

/* —— 窄 Pad / 大手机横屏：流程改为单列 —— */
@media (max-width: 860px) {
  .flow-steps { grid-template-columns: 1fr; }
  .user-chip { display: none; }
  .topbar-title {
    flex: 1; min-width: 0;
    overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
    font-size: 14px;
  }
  .topbar-right { gap: 6px; }
  .topbar-right .btn-sm {
    padding: 6px 10px; min-height: 36px; font-size: 12px;
  }
  .role-switch summary {
    padding: 6px 10px; min-height: 36px; font-size: 12px;
  }
  .peer-row {
    flex-wrap: wrap; align-items: flex-start; gap: 8px 10px;
    padding: 14px 12px;
  }
  .peer-row .p-name { min-width: 0; flex: 1 1 auto; }
  .peer-row .p-no { flex: 1 1 100%; order: 3; margin-top: -2px; }
  .radio-group {
    width: 100%; justify-content: stretch; gap: 8px; order: 2;
  }
  .radio-group label {
    flex: 1; justify-content: center; min-height: 44px;
    padding: 10px 8px;
  }
  .score-options { gap: 10px; width: 100%; }
  .score-btn { width: calc(33.333% - 8px); min-width: 96px; flex: 1 1 96px; height: 88px; }
  .info-list .k { width: 96px; }
  .form-grid { grid-template-columns: 1fr; }
  .form-inline .input { min-width: 0; width: 100%; }
  .toolbar { gap: 8px; }
  .dropzone { padding: 28px 14px; }
  .dropzone .dz-title { font-size: 14px; line-height: 1.5; }
  .check-grid { grid-template-columns: 1fr 1fr; }
  .order-row { flex-wrap: wrap; }
  .order-row .o-info { flex: 1 1 140px; min-width: 0; }
  .search-box { flex-wrap: wrap; }
  .search-box .input { flex: 1 1 160px; min-width: 0; }
  .dialog-footer { flex-wrap: wrap; }
  .dialog-footer .btn { flex: 1 1 auto; min-width: 110px; }
  .export-item-grid .btn { flex: 1 1 140px; }
  .grade-bar .input { max-width: none; width: 100%; }
  .grade-bar { align-items: stretch; }
  .page-hero-actions { width: 100%; }
  .page-hero-actions .btn { flex: 1 1 auto; }
  .mobile-user-label { display: inline-flex !important; }
}

/* —— 手机（≤640） —— */
@media (max-width: 640px) {
  :root { --topbar-h: 56px; }

  .content {
    padding: 14px 12px calc(72px + var(--safe-bottom));
  }
  body.no-page-scroll .content {
    padding: 8px 10px calc(10px + var(--safe-bottom));
  }
  .page-title { font-size: clamp(20px, 5.5vw, 22px); }
  .page-sub { font-size: 13px; margin-bottom: 16px; }
  .page-hero {
    padding: 14px; border-radius: 14px; margin-bottom: 16px; gap: 12px;
  }
  .page-hero .page-sub { max-width: none; }
  .ratio-chip {
    border-radius: 12px; width: 100%;
    justify-content: flex-start;
  }
  .board-grid.cols-3,
  .board-grid.cols-4 { grid-template-columns: 1fr; gap: 10px; }
  .board-card { min-height: 0; padding: 14px 16px; }
  .board-kpi { font-size: 22px; }
  .board-meta { white-space: normal; overflow-wrap: anywhere; }
  .stat-grid { grid-template-columns: 1fr 1fr; gap: 10px; }
  .stat-card { padding: 14px; }
  .stat-card .value { font-size: 22px; }
  .stat-card .meta { white-space: normal; }
  .card { padding: 14px; margin-bottom: 14px; border-radius: 12px; }
  .form-section { padding: 14px; border-radius: 12px; }
  .form-section-head { gap: 10px; margin-bottom: 14px; }
  .panel-head { padding: 12px 14px; }
  .info-list .k {
    width: 30%; min-width: 72px; max-width: 110px;
    font-size: 13px; padding-right: 8px;
  }
  .info-list .v { font-size: 14px; word-break: break-word; }
  .table-wrap > table.table { min-width: 480px; font-size: 13px; }
  table.table th, table.table td { padding: 10px 10px; }
  .check-grid { grid-template-columns: 1fr; }
  .score-btn { width: 100%; min-width: 0; height: 72px; font-size: 20px; }
  .score-options { flex-direction: column; }
  .grading-scorebar-btns.score-options {
    flex-direction: row; flex-wrap: nowrap; margin: 0;
  }
  .grading-scorebar-btns .score-btn {
    width: auto; flex: 1; min-width: 0; height: 58px; font-size: 24px;
  }
  .toast-wrap {
    left: calc(12px + var(--safe-left));
    right: calc(12px + var(--safe-right));
    top: calc(10px + var(--safe-top));
  }
  .toast {
    min-width: 0; max-width: none; width: 100%;
  }
  .modal { border-radius: 16px 16px 12px 12px; max-width: none; }
  .modal-lg { max-width: none; }
  .modal-header, .modal-body, .modal-footer { padding-left: 16px; padding-right: 16px; }
  .modal-footer { flex-wrap: wrap; }
  .modal-footer .btn { flex: 1 1 120px; min-height: 44px; }
  .dialog { max-width: none; }
  .dialog-body { padding: 18px 16px 6px; }
  .peer-submit-bar {
    padding: 14px 0 calc(8px + var(--safe-bottom));
    margin-left: -12px; margin-right: -12px;
    padding-left: 12px; padding-right: 12px;
    background: linear-gradient(180deg, transparent, rgba(241, 245, 249, .95) 20%, var(--color-background));
  }
  .peer-counter .chip { font-size: 12px; padding: 6px 10px; }
  .login-card { padding: 24px 18px; border-radius: 16px; }
  .login-brand { font-size: 22px; }
  .login-brand-pane { padding-left: max(18px, var(--safe-left)); padding-right: max(18px, var(--safe-right)); }
  .btn-block { min-height: 48px; }
  .pagination a, .pagination span { min-width: 40px; min-height: 40px; display: inline-flex; align-items: center; justify-content: center; }
  .action-row .btn { flex: 1 1 auto; }
  .status-hero { padding: 14px; gap: 12px; }
  .status-hero .icon { width: 42px; height: 42px; }
  .urge-box { min-height: 160px; font-size: 12px; }
  .badge {
    white-space: normal; text-align: center;
  }
  .role-badge {
    max-width: 140px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
  }
  .flow-step .step-head {
    flex-wrap: wrap; align-items: flex-start;
  }
  .flow-step .step-title { overflow-wrap: anywhere; }
  .order-row { align-items: flex-start; }
  .order-row .o-name,
  .order-row .o-info {
    min-width: 0; overflow-wrap: anywhere;
  }
  .order-row .badge {
    flex-shrink: 1; max-width: 100%;
  }
  .board-label,
  .board-status,
  .board-status-sm {
    overflow-wrap: anywhere; word-break: break-word;
  }
  .page-hero .page-title,
  .page-hero .page-sub {
    overflow-wrap: anywhere;
  }
  .act-as-banner {
    font-size: 12px; line-height: 1.5;
  }
  .topbar-right { max-width: 62%; }
  .topbar-right .btn-sm { white-space: nowrap; }
  .btn-label-full { display: none; }
  .btn-label-short { display: inline !important; }
  .btn { max-width: 100%; }
  .card-title { overflow-wrap: anywhere; }
  .grading-float .score-options {
    flex-direction: row; width: 100%; gap: 10px;
  }
  .grading-float .score-btn {
    width: auto; flex: 1; min-width: 0; height: 84px;
  }
  .pdf-frame, .pdf-empty { height: 50dvh; }
  .create-split { gap: 12px; }
  .export-secondary-summary { padding: 14px 16px; flex-wrap: wrap; }
  .export-secondary-body { padding: 14px 16px 16px; }
}

/* —— 超小屏（≤380） —— */
@media (max-width: 380px) {
  .stat-grid { grid-template-columns: 1fr; }
  .content { padding-left: 10px; padding-right: 10px; }
  .topbar-right .btn-sm:not(.btn-icon) {
    padding: 6px 8px; font-size: 11px;
  }
  .radio-group label { font-size: 12px; padding: 8px 4px; }
}

/* —— 横屏手机：压缩顶栏与登录品牌区 —— */
@media (max-width: 900px) and (max-height: 480px) and (orientation: landscape) {
  .login-brand-pane { padding-top: 16px; padding-bottom: 16px; }
  .login-brand-hero { margin: 12px 0 8px; }
  .login-brand-hero .uni { font-size: 22px; }
  .login-brand-hero .tagline { display: none; }
  .login-form-pane { padding-top: 16px; padding-bottom: 16px; }
  .topbar { height: 48px; }
  :root { --topbar-h: 48px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    transition-duration: .01ms !important;
  }
  .content, .login-card, .login-brand-hero, .grading-float-panel { animation: none; }
}

/* 顶栏移动端用户名（默认隐藏，窄屏显示） */
.mobile-user-label {
  display: none;
  align-items: center;
  font-size: 12px; font-weight: 600; color: var(--color-primary);
  max-width: 72px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.btn-label-short { display: none; }