/* Structured research: shared Yuanhua brand and explicit input states. */
.wb .extensions { min-width: 0; }
.wb .ext-layout { display: grid; gap: 1.5rem; align-items: start; }
.wb .ext-primary { display: grid; gap: 1.5rem; min-width: 0; }
.wb .ext-form, .wb .ext-result { padding: clamp(1.2rem, 3vw, 2rem); background: var(--sheet); border: 1px solid var(--line); border-radius: 3px; min-width: 0; }
.wb .ext-form { display: grid; gap: 1.1rem; }
.wb .ext-form h3 { padding-top: 1.1rem; border-top: 1px solid var(--line); }
.wb .ext-form-top { display: flex; gap: 1rem; justify-content: space-between; align-items: center; flex-wrap: wrap; }
.wb .ext-form-top .btn { font-size: .8rem; padding: .6rem .75rem; }
.wb .ext-field { display: grid; gap: .45rem; min-width: 0; }
.wb .ext-field label { font-size: .875rem; font-weight: 600; }
.wb .ext-field .meta { margin: 0; font-size: .8rem; }
.wb .ext-control { width: 100%; min-width: 0; padding: .8rem; border: 1px solid var(--control-line); border-radius: 2px; background: var(--sheet); color: var(--ink); font: inherit; resize: vertical; transition: border-color .2s, box-shadow .2s, background .2s; }
.wb .ext-control::placeholder { color: var(--ink-soft); opacity: 1; }
.wb .ext-control:hover:not(:disabled):not(:focus):not([aria-invalid="true"]) { border-color: var(--accent); }
.wb .ext-control:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--focus-ring); }
.wb .ext-control[aria-invalid="true"] { border-color: var(--danger); }
.wb .ext-control[aria-invalid="true"]:focus { box-shadow: 0 0 0 3px color-mix(in srgb, var(--danger) 18%, transparent); }
.wb .ext-control:disabled, .wb .ext-control[readonly] { color: var(--ink-soft); background: var(--surface-muted); }
.wb .ext-control:disabled { cursor: not-allowed; }
.wb .ext-code, .wb .ext-json { font-family: var(--mono); font-size: .8rem; line-height: 1.7; }
.wb .ext-grid { display: grid; gap: 1rem; }
.wb .ext-aside { padding: 1.5rem; border-top: 3px solid var(--accent); background: var(--accent-soft); }
.wb .ext-aside h2 { margin-bottom: 1rem; font-size: 1.8rem; white-space: pre-line; }
.wb .ext-aside p, .wb .ext-aside li { font-size: .875rem; color: var(--ink-soft); }
.wb .ext-aside ul { margin: 1.5rem 0; padding-left: 1.2rem; }
.wb .ext-aside li { margin-bottom: .8rem; }
.wb .ext-history { margin-top: 2rem; padding-top: 1.5rem; border-top: 1px solid var(--line); display: grid; gap: .85rem; }
.wb .ext-history h2 { font-size: 1.2rem; margin: 0; }
.wb .ext-history > div { display: grid; gap: .5rem; }
.wb .ext-history .btn { overflow-wrap: anywhere; text-align: left; font-size: .75rem; }
.wb .ext-details { padding-top: 1rem; border-top: 1px solid var(--line); }
.wb .ext-details summary { cursor: pointer; color: var(--ink-soft); font-size: .875rem; padding-bottom: .8rem; }
.wb .ext-json { max-height: 32rem; overflow: auto; white-space: pre-wrap; overflow-wrap: anywhere; padding: 1rem; background: var(--surface-subtle); border: 1px solid var(--line); }
.wb .ext-check { display: flex; gap: .75rem; align-items: start; margin-bottom: .8rem; font-size: .875rem; }
.wb .ext-check input { accent-color: var(--accent); width: 1.1rem; height: 1.1rem; flex: 0 0 auto; }
.wb .ext-note { padding: .8rem 1rem; background: var(--neutral-soft); border-left: 2px solid var(--neutral-line); font-size: .85rem; overflow-wrap: anywhere; }
.wb .ext-note.error { color: var(--danger); border-color: var(--danger); background: var(--danger-soft); }
.wb .ext-note.success { color: var(--success); border-color: var(--success-line); background: var(--success-soft); }
.wb .ext-note.warning { color: var(--warning); border-color: var(--warning-line); background: var(--warning-soft); }
.wb .ext-actions { display: flex; gap: .75rem; flex-wrap: wrap; margin-top: .5rem; }
.wb .ext-inline-status:empty { display: none; }
.wb .ext-stats { display: grid; gap: 1rem; grid-template-columns: repeat(2, minmax(0, 1fr)); margin: 1rem 0; }
.wb .ext-stat { padding: 1rem 0; border-bottom: 1px solid var(--line); }
.wb .ext-stat strong { display: block; font-size: 1.3rem; margin-top: .4rem; overflow-wrap: anywhere; }
.wb .ext-distribution { margin: 1.5rem 0 2rem; }
.wb .ext-prob-row { display: grid; grid-template-columns: minmax(3rem, .5fr) minmax(0, 2fr) minmax(3.5rem, .6fr); align-items: center; gap: .75rem; padding: .7rem 0; font-size: .875rem; }
.wb .ext-prob-track { height: .5rem; background: var(--surface-muted); }
.wb .ext-prob-fill { height: 100%; display: block; background: var(--accent); }
.wb .ext-ranking { padding: 0; list-style: none; }
.wb .ext-ranking li { display: grid; grid-template-columns: 2rem minmax(0, 1fr); gap: .5rem; padding: 1rem 0; border-bottom: 1px solid var(--line); }
.wb .ext-ranking .meta { grid-column: 2; }
.wb .ext-table-wrap { max-width: 100%; overflow-x: auto; margin: 1.5rem 0; }
.wb .ext-table { border-collapse: collapse; width: 100%; font-size: .8rem; }
.wb .ext-table caption { text-align: left; padding-bottom: .8rem; color: var(--ink-soft); }
.wb .ext-table th, .wb .ext-table td { padding: .7rem; border: 1px solid var(--line); white-space: nowrap; }
.wb .ext-table th { background: var(--surface-muted); }
.wb .ext-client-grid { display: grid; gap: 1.5rem; }
.wb .ext-client-grid .ext-form { border-top: 3px solid var(--accent); }
.wb .ext-record { padding: 1rem 0; border-bottom: 1px solid var(--line); min-width: 0; }
.wb .ext-record .num { overflow-wrap: anywhere; }
.wb .ext-price { border-top: 1px solid var(--line); margin: 1.5rem 0; padding-top: 1rem; }
.wb .ext-material { white-space: pre-wrap; overflow-wrap: anywhere; margin: 1rem 0; }
@media (min-width: 640px) {
  .wb .ext-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .wb .ext-ranking li { grid-template-columns: 2rem minmax(0, 1fr) auto; align-items: center; }
  .wb .ext-ranking .meta { grid-column: auto; }
}
@media (min-width: 1200px) {
  .wb .ext-layout { grid-template-columns: minmax(0, 1fr) 17rem; gap: 1.75rem; }
  .wb .ext-client-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}