/* ============================================================
   组件：卡片 / 表格 / 按钮 / 表单 / 弹窗 / 标签 / 徽标
   ============================================================ */

/* ---------- 卡片 ---------- */
.card {
  background: var(--white);
  border: 1px solid var(--ink-200);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-xs);
  overflow: hidden;
}
.card--pad { padding: 18px; }
.card__head {
  display: flex; align-items: center; gap: 10px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--ink-100);
}
.card__head h3 { font-size: 14.5px; }
.card__head .sub { font-size: 12px; color: var(--ink-500); }
.card__body { padding: 18px; }
.card__body--flush { padding: 0; }
.card__foot {
  padding: 12px 18px; border-top: 1px solid var(--ink-100);
  background: var(--ink-50);
  display: flex; align-items: center; gap: 10px;
}

/* ---------- 统计卡 ---------- */
.stat {
  background: var(--white);
  border: 1px solid var(--ink-200);
  border-radius: var(--r-lg);
  padding: 16px 18px;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-xs);
  transition: transform .16s, box-shadow .16s;
}
.stat:hover { transform: translateY(-2px); box-shadow: var(--shadow-sm); }
.stat::after {
  content: ''; position: absolute; right: -26px; top: -26px;
  width: 78px; height: 78px; border-radius: 50%;
  background: var(--brand-50);
}
.stat__label { font-size: 12.5px; color: var(--ink-500); position: relative; z-index: 1; }
.stat__value {
  font-size: 27px; font-weight: 700; color: var(--ink-900);
  margin: 6px 0 3px; line-height: 1.1;
  font-variant-numeric: tabular-nums; position: relative; z-index: 1;
}
.stat__value small { font-size: 13px; font-weight: 500; color: var(--ink-500); margin-left: 3px; }
.stat__foot { font-size: 12px; color: var(--ink-500); position: relative; z-index: 1; }
.stat--brand { background: linear-gradient(135deg, var(--brand) 0%, var(--brand-700) 100%); border-color: transparent; }
.stat--brand::after { background: rgba(255,255,255,.13); }
.stat--brand .stat__label,
.stat--brand .stat__foot { color: rgba(255,255,255,.86); }
.stat--brand .stat__value { color: #fff; }
.stat--accent { background: linear-gradient(135deg, var(--accent) 0%, var(--brand-400) 100%); border-color: transparent; }
.stat--accent::after { background: rgba(255,255,255,.15); }
.stat--accent .stat__label, .stat--accent .stat__foot { color: rgba(255,255,255,.9); }
.stat--accent .stat__value { color: #fff; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  height: 34px; padding: 0 14px;
  border-radius: var(--r-sm);
  border: 1px solid var(--ink-200);
  background: var(--white);
  color: var(--ink-700);
  font-size: 13px; font-family: inherit; font-weight: 500;
  cursor: pointer;
  transition: all .14s;
  white-space: nowrap;
  user-select: none;
}
.btn:hover { border-color: var(--ink-300); background: var(--ink-50); }
.btn:active { transform: translateY(1px); }
.btn:disabled { opacity: .5; cursor: not-allowed; transform: none; }
.btn svg { width: 15px; height: 15px; }

.btn--primary {
  background: linear-gradient(135deg, var(--brand) 0%, var(--brand-700) 100%);
  border-color: transparent; color: #fff; font-weight: 600;
  box-shadow: 0 2px 8px rgba(255,122,26,.3);
}
.btn--primary:hover { box-shadow: var(--shadow-brand); background: linear-gradient(135deg, var(--brand-400), var(--brand)); }
.btn--ghost { background: transparent; border-color: transparent; color: var(--ink-600); }
.btn--ghost:hover { background: var(--ink-100); }
.btn--danger { color: var(--danger); border-color: #F3C9C9; background: var(--danger-bg); }
.btn--danger:hover { background: #FBDCDC; border-color: var(--danger); }
.btn--success { color: var(--success); border-color: #BFE6CE; background: var(--success-bg); }
.btn--success:hover { background: #D8F2E2; }
.btn--sm { height: 28px; padding: 0 10px; font-size: 12.5px; }
.btn--lg { height: 40px; padding: 0 20px; font-size: 14px; }
.btn--block { width: 100%; }

/* ---------- 表单 ---------- */
.field { margin-bottom: 14px; }
.field__label {
  display: block; font-size: 12.5px; font-weight: 500;
  color: var(--ink-700); margin-bottom: 6px;
}
.field__label .req { color: var(--danger); margin-left: 2px; }
.field__hint { font-size: 11.5px; color: var(--ink-400); margin-top: 5px; }

.input, .select, .textarea {
  width: 100%; height: 34px;
  padding: 0 11px;
  border: 1px solid var(--ink-200);
  border-radius: var(--r-sm);
  font-size: 13px; font-family: inherit;
  color: var(--ink-800);
  background: var(--white);
  transition: border-color .14s, box-shadow .14s;
  outline: none;
}
.textarea { height: auto; padding: 8px 11px; resize: vertical; min-height: 68px; line-height: 1.5; }
.input:focus, .select:focus, .textarea:focus {
  border-color: var(--brand);
  box-shadow: 0 0 0 3px rgba(255,122,26,.14);
}
.input::placeholder, .textarea::placeholder { color: var(--ink-400); }
.select { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%237A8494' stroke-width='2.5'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 10px center; padding-right: 30px; }

.search {
  position: relative; display: inline-flex; align-items: center;
}
.search .input { padding-left: 32px; }
.search svg {
  position: absolute; left: 10px; width: 15px; height: 15px;
  color: var(--ink-400); pointer-events: none;
}

.checkbox, .radio {
  display: inline-flex; align-items: center; gap: 7px;
  font-size: 13px; color: var(--ink-700); cursor: pointer; user-select: none;
}
.checkbox input, .radio input { width: 15px; height: 15px; accent-color: var(--brand); cursor: pointer; }

.switch { display: inline-flex; align-items: center; gap: 9px; cursor: pointer; font-size: 13px; }
.switch input { display: none; }
.switch__track {
  width: 38px; height: 21px; border-radius: 11px; background: var(--ink-300);
  position: relative; transition: background .18s; flex-shrink: 0;
}
.switch__track::after {
  content: ''; position: absolute; top: 2px; left: 2px;
  width: 17px; height: 17px; border-radius: 50%; background: #fff;
  transition: transform .18s; box-shadow: 0 1px 3px rgba(0,0,0,.2);
}
.switch input:checked + .switch__track { background: var(--brand); }
.switch input:checked + .switch__track::after { transform: translateX(17px); }

/* ---------- 表格 ---------- */
.table-wrap { overflow-x: auto; }
table.tbl { width: 100%; border-collapse: collapse; font-size: 13px; }
table.tbl th {
  text-align: left; font-weight: 600; font-size: 12.5px;
  color: var(--ink-600); background: var(--ink-50);
  padding: 10px 14px; white-space: nowrap;
  border-bottom: 1px solid var(--ink-200);
  position: sticky; top: 0; z-index: 2;
}
table.tbl td {
  padding: 11px 14px;
  border-bottom: 1px solid var(--ink-100);
  color: var(--ink-700);
  vertical-align: middle;
}
table.tbl tbody tr { transition: background .12s; }
table.tbl tbody tr:hover { background: var(--brand-50); }
table.tbl tbody tr:last-child td { border-bottom: none; }
table.tbl .num, table.tbl .mono { font-variant-numeric: tabular-nums; }
table.tbl .name { font-weight: 600; color: var(--ink-900); }
table.tbl td.actions { white-space: nowrap; text-align: right; }
table.tbl--compact th, table.tbl--compact td { padding: 8px 11px; }

/* ---------- 标签 / 徽标 ---------- */
.tag {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 2px 9px; border-radius: 5px;
  font-size: 11.5px; font-weight: 500; white-space: nowrap;
  background: var(--ink-100); color: var(--ink-600);
}
.tag--brand   { background: var(--brand-100);  color: var(--brand-700); }
.tag--success { background: var(--success-bg); color: var(--success); }
.tag--warning { background: var(--warning-bg); color: var(--warning); }
.tag--danger  { background: var(--danger-bg);  color: var(--danger); }
.tag--info    { background: var(--info-bg);    color: var(--info); }
.tag--dot::before {
  content: ''; width: 6px; height: 6px; border-radius: 50%;
  background: currentColor; display: block;
}

.pill {
  display: inline-flex; align-items: center;
  padding: 3px 10px; border-radius: 14px;
  font-size: 12px; font-weight: 600;
  background: var(--brand-50); color: var(--brand-700);
  border: 1px solid var(--brand-200);
}

/* ---------- 进度条 ---------- */
.progress {
  height: 7px; border-radius: 4px; background: var(--ink-100);
  overflow: hidden; min-width: 56px;
}
.progress__bar {
  height: 100%; border-radius: 4px;
  background: linear-gradient(90deg, var(--brand), var(--accent));
  transition: width .35s ease;
}
.progress__bar--danger { background: linear-gradient(90deg, #E86A6A, var(--danger)); }
.progress__bar--success { background: linear-gradient(90deg, #3DBE73, var(--success)); }

/* ---------- 弹窗 ---------- */
.modal-mask {
  position: fixed; inset: 0; z-index: 1000;
  background: rgba(31,35,41,.45);
  backdrop-filter: blur(2px);
  display: flex; align-items: center; justify-content: center;
  padding: 24px;
  animation: fadeIn .16s ease;
}
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
.modal {
  background: #fff; border-radius: var(--r-lg);
  box-shadow: var(--shadow-lg);
  width: 100%; max-width: 520px;
  max-height: 88vh; display: flex; flex-direction: column;
  animation: modalIn .2s cubic-bezier(.2,.8,.3,1);
}
@keyframes modalIn {
  from { opacity: 0; transform: translateY(14px) scale(.98); }
  to { opacity: 1; transform: none; }
}
.modal--lg { max-width: 780px; }
.modal--xl { max-width: 1000px; }
.modal__head {
  display: flex; align-items: center; gap: 10px;
  padding: 16px 20px; border-bottom: 1px solid var(--ink-100);
}
.modal__head h3 { font-size: 15.5px; }
.modal__close {
  margin-left: auto; width: 28px; height: 28px; border-radius: var(--r-sm);
  border: none; background: transparent; cursor: pointer;
  color: var(--ink-500); display: grid; place-items: center; font-size: 19px;
  line-height: 1;
}
.modal__close:hover { background: var(--ink-100); color: var(--ink-800); }
.modal__body { padding: 20px; overflow-y: auto; flex: 1; }
.modal__foot {
  padding: 14px 20px; border-top: 1px solid var(--ink-100);
  display: flex; gap: 10px; justify-content: flex-end;
  background: var(--ink-50);
}

/* ---------- 提示 ---------- */
.toast-wrap {
  position: fixed; top: 18px; right: 18px; z-index: 2000;
  display: flex; flex-direction: column; gap: 9px;
}
.toast {
  display: flex; align-items: flex-start; gap: 10px;
  padding: 11px 15px; border-radius: var(--r);
  background: #fff; box-shadow: var(--shadow-lg);
  border-left: 3px solid var(--brand);
  font-size: 13px; color: var(--ink-800);
  min-width: 240px; max-width: 380px;
  animation: toastIn .22s cubic-bezier(.2,.8,.3,1);
}
@keyframes toastIn { from { opacity: 0; transform: translateX(24px); } to { opacity: 1; transform: none; } }
.toast--success { border-left-color: var(--success); }
.toast--error   { border-left-color: var(--danger); }
.toast--warning { border-left-color: var(--warning); }
.toast__icon { flex-shrink: 0; font-size: 15px; line-height: 1.35; }

/* ---------- 空状态 / 加载 ---------- */
.empty {
  padding: 52px 20px; text-align: center; color: var(--ink-400);
}
.empty__icon { font-size: 38px; margin-bottom: 10px; opacity: .5; }
.empty__text { font-size: 13px; }

.spinner {
  width: 17px; height: 17px; border-radius: 50%;
  border: 2px solid var(--brand-200); border-top-color: var(--brand);
  animation: spin .7s linear infinite; display: inline-block;
}
@keyframes spin { to { transform: rotate(360deg); } }
.loading-box { padding: 40px; text-align: center; color: var(--ink-400); font-size: 13px; }

.skeleton {
  background: linear-gradient(90deg, var(--ink-100) 25%, var(--ink-50) 50%, var(--ink-100) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.3s infinite;
  border-radius: var(--r-xs); height: 13px;
}
@keyframes shimmer { 0% { background-position: 200% 0; } 100% { background-position: -200% 0; } }

/* ---------- 分页 ---------- */
.pager { display: flex; align-items: center; gap: 6px; margin-left: auto; }
.pager__btn {
  min-width: 30px; height: 30px; padding: 0 8px;
  border: 1px solid var(--ink-200); background: #fff;
  border-radius: var(--r-sm); cursor: pointer;
  font-size: 12.5px; color: var(--ink-700); font-family: inherit;
}
.pager__btn:hover:not(:disabled) { border-color: var(--brand); color: var(--brand-700); }
.pager__btn.active { background: var(--brand); border-color: var(--brand); color: #fff; font-weight: 600; }
.pager__btn:disabled { opacity: .4; cursor: not-allowed; }
.pager__info { font-size: 12.5px; color: var(--ink-500); margin-right: 6px; }

/* ---------- 描述列表 ---------- */
.desc { display: grid; grid-template-columns: 96px 1fr; gap: 11px 14px; font-size: 13px; }
.desc dt { color: var(--ink-500); }
.desc dd { margin: 0; color: var(--ink-800); font-weight: 500; }

/* ---------- 分隔 ---------- */
.divider { height: 1px; background: var(--ink-100); margin: 16px 0; }
.divider--v { width: 1px; height: 20px; background: var(--ink-200); margin: 0 4px; }

/* ---------- 选项卡 ---------- */
.tabs { display: flex; gap: 2px; border-bottom: 1px solid var(--ink-200); }
.tab {
  padding: 9px 15px; font-size: 13.5px; color: var(--ink-600);
  cursor: pointer; border-bottom: 2px solid transparent;
  font-weight: 500; transition: all .14s; user-select: none;
}
.tab:hover { color: var(--brand-700); }
.tab.active,
.tab.tab--on { color: var(--brand-700); border-bottom-color: var(--brand); font-weight: 600; }
.tab__badge {
  display: inline-block; min-width: 16px; padding: 0 5px; margin-left: 4px;
  font-size: 11px; line-height: 16px; text-align: center; font-weight: 600;
  color: var(--brand-700); background: var(--brand-100); border-radius: 8px;
  vertical-align: 1px;
}
.tab__badge:empty { display: none; }

/* ---------- 进度条 ---------- */
.hbar { height: 8px; background: var(--ink-100); border-radius: 4px; overflow: hidden; }
.hbar > i {
  display: block; height: 100%; border-radius: 4px;
  background: linear-gradient(90deg, var(--brand-500), var(--brand-700));
  transition: width .3s;
}
.hbar--slim { height: 6px; border-radius: 3px; }

/* ---------- 时间轴 ---------- */
.timeline { position: relative; padding-left: 22px; }
.timeline::before {
  content: ''; position: absolute; left: 6px; top: 5px; bottom: 5px;
  width: 2px; background: var(--ink-100);
}
.tl-item { position: relative; padding-bottom: 18px; }
.tl-item:last-child { padding-bottom: 0; }
.tl-item::before {
  content: ''; position: absolute; left: -20px; top: 4px;
  width: 10px; height: 10px; border-radius: 50%;
  background: #fff; border: 2px solid var(--ink-300);
}
.tl-item--brand::before { border-color: var(--brand); background: var(--brand-100); }
.tl-item--success::before { border-color: var(--success); background: var(--success-bg); }
.tl-item--danger::before { border-color: var(--danger); background: var(--danger-bg); }
.tl-time { font-size: 11.5px; color: var(--ink-400); font-variant-numeric: tabular-nums; }
.tl-title { font-size: 13.5px; font-weight: 500; color: var(--ink-800); margin: 2px 0; }
.tl-desc { font-size: 12.5px; color: var(--ink-500); }

/* 自建圆点版本（tl-item 内直接放 .tl-dot/.tl-body 时用它，避免与 ::before 叠加） */
.tl-item:has(> .tl-dot)::before { display: none; }
.tl-item:has(> .tl-dot) { padding-bottom: 16px; }
.tl-dot {
  position: absolute; left: -20px; top: 5px;
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--brand-500); border: 2px solid #fff;
  box-shadow: 0 0 0 2px var(--brand-100);
}
.tl-dot--warn { background: var(--warning); box-shadow: 0 0 0 2px var(--warning-bg); }
.tl-body { min-width: 0; }

/* ---------- 表格内联 ---------- */
.inline-num { font-variant-numeric: tabular-nums; font-weight: 600; }
.text-muted { color: var(--ink-500); }
.text-danger { color: var(--danger); }
.text-success { color: var(--success); }
.text-warning { color: var(--warning); }
.text-brand { color: var(--brand-700); }
.fw-600 { font-weight: 600; }
.fs-12 { font-size: 12px; }
.fs-13 { font-size: 13px; }
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }
.mb-8 { margin-bottom: 8px; }
.mb-12 { margin-bottom: 12px; }
.mb-16 { margin-bottom: 16px; }
.mt-8 { margin-top: 8px; }
.mt-12 { margin-top: 12px; }
.mt-16 { margin-top: 16px; }
.nowrap { white-space: nowrap; }
.center { text-align: center; }
.right { text-align: right; }

/* ============================================================
   补充：工具类与复合组件（PC 页面通用）
   ============================================================ */

/* ---------- 快捷类名：table = tbl ---------- */
table.table { width: 100%; border-collapse: collapse; font-size: 13px; }
table.table th {
  text-align: left; font-weight: 600; font-size: 12.5px;
  color: var(--ink-600); background: var(--ink-50);
  padding: 10px 14px; white-space: nowrap;
  border-bottom: 1px solid var(--ink-200);
  position: sticky; top: 0; z-index: 2;
}
table.table td {
  padding: 11px 14px;
  border-bottom: 1px solid var(--ink-100);
  color: var(--ink-700);
  vertical-align: middle;
}
table.table tbody tr { transition: background .12s; }
table.table tbody tr:hover { background: var(--brand-50); }
table.table tbody tr:last-child td { border-bottom: none; }
table.table th.ta-c, table.table td.ta-c { text-align: center; }
table.table th.ta-r, table.table td.ta-r { text-align: right; }
table.table--compact th, table.table--compact td { padding: 8px 11px; }
table.table tbody tr.row--muted { opacity: .55; }

/* ---------- 统计卡（stat-card 别名） ---------- */
.stat-card {
  position: relative; overflow: hidden;
  background: var(--white); border: 1px solid var(--ink-100);
  border-radius: var(--r); padding: 16px 18px;
  transition: transform .15s, box-shadow .15s;
}
.stat-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-sm); }
.stat-card__top { display: flex; align-items: center; justify-content: space-between; }
.stat-card__label { font-size: 12.5px; color: var(--ink-500); }
.stat-card__icon {
  width: 30px; height: 30px; border-radius: 9px;
  display: flex; align-items: center; justify-content: center;
  background: var(--brand-100); color: var(--brand-700);
  font-size: 14px; flex-shrink: 0;
}
.stat-card__value {
  font-size: 27px; font-weight: 700; color: var(--ink-900);
  line-height: 1.15; margin: 9px 0 3px;
  font-variant-numeric: tabular-nums; letter-spacing: -.01em;
}
.stat-card__sub { font-size: 12px; color: var(--ink-500); }
.stat-card--brand {
  background: linear-gradient(135deg, var(--brand) 0%, var(--brand-700) 100%);
  border-color: transparent;
}
.stat-card--brand .stat-card__label,
.stat-card--brand .stat-card__sub { color: rgba(255,255,255,.87); }
.stat-card--brand .stat-card__value { color: #fff; }
.stat-card--brand .stat-card__icon { background: rgba(255,255,255,.18); color: #fff; }
.stat-card--accent {
  background: linear-gradient(135deg, var(--accent) 0%, var(--brand-400) 100%);
  border-color: transparent;
}
.stat-card--accent .stat-card__label,
.stat-card--accent .stat-card__sub { color: rgba(255,255,255,.9); }
.stat-card--accent .stat-card__value { color: #fff; }
.stat-card--accent .stat-card__icon { background: rgba(255,255,255,.2); color: #fff; }

/* ---------- 表格单元复合 ---------- */
.cell-main { font-weight: 600; color: var(--ink-900); font-size: 13px; }
.cell-sub { font-size: 11.5px; color: var(--ink-500); margin-top: 1px; }
.dot-label { display: inline-flex; align-items: center; gap: 6px; }
.dot-label i {
  width: 8px; height: 8px; border-radius: 50%;
  display: inline-block; flex-shrink: 0;
}

/* ---------- 加载态 ---------- */
.loading { padding: 44px; text-align: center; color: var(--ink-400); font-size: 13px; }
.loading::after {
  content: ''; display: inline-block; width: 13px; height: 13px;
  margin-left: 8px; vertical-align: -2px;
  border: 2px solid var(--ink-200); border-top-color: var(--brand);
  border-radius: 50%; animation: spin .7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- 提示条 ---------- */
.alert {
  display: flex; flex-direction: column; gap: 3px;
  padding: 12px 15px; border-radius: var(--r-sm);
  font-size: 13px; line-height: 1.6;
  border-left: 3px solid var(--info); background: var(--info-bg); color: var(--ink-700);
}
.alert--success { border-left-color: var(--success); background: var(--success-bg); }
.alert--warning { border-left-color: var(--warning); background: var(--warning-bg); }
.alert--danger  { border-left-color: var(--danger);  background: var(--danger-bg); }
.alert strong { color: var(--ink-900); font-weight: 600; }

/* ---------- 小按钮 ---------- */
.btn--xs { height: 24px; padding: 0 8px; font-size: 11.5px; border-radius: var(--r-xs); }

/* ---------- 色值工具 ---------- */
.c-brand  { color: var(--brand-700); }
.c-danger { color: var(--danger); }
.c-success{ color: var(--success); }
.c-warning{ color: var(--warning); }
.c-info   { color: var(--info); }
.ta-c { text-align: center; }
.ta-r { text-align: right; }
.fs-11 { font-size: 11px; }
.fs-14 { font-size: 14px; }
.fs-15 { font-size: 15px; }
.fs-16 { font-size: 16px; }
.mb-4 { margin-bottom: 4px; }
.mb-6 { margin-bottom: 6px; }
.mb-20 { margin-bottom: 20px; }
.mt-4 { margin-top: 4px; }
.mt-6 { margin-top: 6px; }
.mono { font-family: var(--mono); font-variant-numeric: tabular-nums; }
.req { color: var(--danger); margin-left: 2px; }
.grid-6 { grid-template-columns: repeat(6, minmax(0,1fr)); }
@media (max-width: 1400px) { .grid-5, .grid-6 { grid-template-columns: repeat(3, minmax(0,1fr)); } }
@media (max-width: 1100px) { .grid-4, .grid-5, .grid-6 { grid-template-columns: repeat(2, minmax(0,1fr)); } }

/* ---------- 代码块（日志详情） ---------- */
.code-block {
  margin: 0; padding: 13px 15px;
  background: var(--ink-900); color: #E8ECF3;
  border-radius: var(--r-sm);
  font-family: var(--mono); font-size: 12px; line-height: 1.65;
  white-space: pre-wrap; word-break: break-all;
  max-height: 300px; overflow: auto;
}

.stat-card__icon svg { width: 16px; height: 16px; }

/* ---------- 班级卡片拖拽编排 ---------- */
.cls-card { cursor: grab; transition: box-shadow .16s, transform .16s, opacity .16s, border-color .16s; }
.cls-card:hover { border-color: var(--brand-200); }
.cls-card:active { cursor: grabbing; }
/* 拖起来的那张：淡一点、缩一点，视觉上"抬起" */
.cls-card.cls-dragging { opacity: .45; transform: scale(.985); cursor: grabbing; }
/* 拖到谁身上：谁让出高亮，提示落点 */
.cls-card.cls-drop-hint {
  box-shadow: 0 0 0 2px var(--brand) inset;
  background: var(--brand-50);
}