.training-body { min-height: 100%; overflow-y: auto; }
.training-shell { position: relative; min-height: 100vh; }
.training-header { position: sticky; top: 0; z-index: 20; min-height: 74px; display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 13px max(24px, calc((100vw - 1320px) / 2)); border-bottom: 1px solid var(--line); background: rgba(8,17,18,.88); backdrop-filter: blur(16px); }
.training-brand { display: flex; align-items: center; gap: 12px; }
.training-brand .eyebrow { margin-bottom: 3px; }
.training-brand h1 { margin: 0; font-size: 17px; }
.training-nav { display: flex; align-items: center; gap: 9px; }
.training-nav a, .training-nav button { padding: 9px 12px; border: 1px solid var(--line); border-radius: 10px; color: #b9cbc7; background: rgba(255,255,255,.025); font-size: 12px; text-decoration: none; cursor: pointer; }
.training-nav a:hover, .training-nav button:hover { border-color: var(--line-strong); color: var(--text); }
.training-main { width: min(1320px, calc(100% - 36px)); margin: 0 auto; padding: 28px 0 50px; }
.intro-panel { display: flex; align-items: center; justify-content: space-between; gap: 30px; padding: 28px; border: 1px solid rgba(57,212,159,.18); border-radius: 22px; background: linear-gradient(135deg,rgba(57,212,159,.08),rgba(14,27,28,.86)); }
.trainer-pill { display: inline-block; padding: 5px 9px; border: 1px solid rgba(218,174,255,.22); border-radius: 999px; color: #dfbaff; background: rgba(174,91,240,.08); font-size: 10px; }
.intro-panel h2 { margin: 10px 0 8px; font-size: clamp(22px,3vw,32px); letter-spacing: -.03em; }
.intro-panel p { max-width: 710px; margin: 0; color: var(--muted); font-size: 13px; line-height: 1.75; }
.training-stats { display: grid; grid-template-columns: repeat(3,90px); gap: 9px; }
.training-stats div { padding: 15px 10px; border: 1px solid var(--line); border-radius: 14px; text-align: center; background: rgba(0,0,0,.13); }
.training-stats strong { display: block; color: #c5f4e3; font-size: 24px; }
.training-stats span { color: var(--muted-2); font-size: 10px; }
.training-grid { display: grid; grid-template-columns: minmax(360px,.88fr) minmax(460px,1.12fr); gap: 18px; margin-top: 18px; align-items: start; }
.training-panel { border: 1px solid var(--line); border-radius: 20px; background: rgba(12,23,24,.86); box-shadow: 0 18px 50px rgba(0,0,0,.15); }
.import-panel { padding: 23px; }
.case-panel { min-height: 620px; padding: 23px; }
.panel-title { display: flex; align-items: flex-start; justify-content: space-between; gap: 14px; margin-bottom: 20px; }
.panel-title h2 { margin: 0; font-size: 19px; }
.panel-title > span { color: #8de5c3; font-size: 10px; }
.import-form { display: grid; gap: 14px; }
.import-form label > span { display: block; margin-bottom: 7px; color: #b9cbc7; font-size: 12px; }
.import-form b { color: var(--danger); }
.import-form input, .import-form textarea, .import-form select { width: 100%; padding: 11px 12px; border: 1px solid var(--line-strong); border-radius: 11px; outline: none; color: var(--text); background: rgba(4,11,12,.62); }
.import-form input:focus, .import-form textarea:focus, .import-form select:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(57,212,159,.09); }
.import-form textarea { resize: vertical; line-height: 1.6; }
.training-context textarea[readonly] { color: #9fb5b0; background: rgba(57,212,159,.035); cursor: default; }
.import-form small { display: block; margin-top: 6px; color: var(--muted-2); font-size: 10px; line-height: 1.5; }
.import-submit { min-height: 45px; margin-top: 4px; }
.import-submit:disabled { opacity: .55; cursor: wait; }
.training-image-preview { display: flex; gap: 8px; overflow-x: auto; }
.training-image-preview img { width: 76px; height: 76px; flex: 0 0 auto; border: 1px solid var(--line-strong); border-radius: 11px; object-fit: cover; }
.refresh-button { padding: 7px 10px; border: 1px solid var(--line); border-radius: 9px; color: var(--muted); background: transparent; font-size: 11px; cursor: pointer; }
.case-list { display: grid; gap: 11px; max-height: 800px; overflow-y: auto; padding-right: 3px; }
.case-empty { padding: 70px 20px; border: 1px dashed var(--line-strong); border-radius: 15px; color: var(--muted-2); text-align: center; font-size: 12px; }
.case-card { padding: 16px; border: 1px solid var(--line); border-radius: 15px; background: rgba(0,0,0,.12); }
.case-card.disabled, .case-card.superseded { opacity: .62; }
.case-meta { display: flex; align-items: center; flex-wrap: wrap; gap: 6px; }
.case-tag { padding: 4px 7px; border-radius: 7px; color: #8de5c3; background: rgba(57,212,159,.08); font-size: 9px; }
.case-tag.category { color: #dcb7fb; background: rgba(174,91,240,.09); }
.case-tag.intent { color: #ffd59a; background: rgba(255,180,74,.08); }
.case-tag.system { color: #ffadad; background: rgba(255,123,123,.08); }
.case-tag.platform { color: #9bc3ff; background: rgba(104,157,255,.10); }
.case-tag.action { color: #8de5c3; border: 1px solid rgba(57,212,159,.18); }
.case-time { margin-left: auto; color: var(--muted-2); font-size: 9px; }
.case-card h3 { margin: 12px 0 7px; color: #dceae6; font-size: 13px; line-height: 1.55; }
.case-answer { margin: 0; padding: 11px; border-left: 2px solid var(--accent); border-radius: 0 9px 9px 0; color: #cfe0dc; background: rgba(57,212,159,.045); font-size: 12px; line-height: 1.65; white-space: pre-wrap; }
.case-scope { margin: 9px 0 0; color: var(--muted-2); font-size: 10px; line-height: 1.55; }
.case-images { display: flex; gap: 7px; margin-top: 10px; }
.case-images img { width: 58px; height: 58px; border-radius: 9px; object-fit: cover; border: 1px solid var(--line); cursor: zoom-in; }
.case-actions { display: flex; justify-content: flex-end; margin-top: 11px; }
.case-actions button { padding: 6px 9px; border: 1px solid var(--line); border-radius: 8px; color: var(--muted); background: transparent; font-size: 10px; cursor: pointer; }
.case-actions button:hover { color: var(--text); border-color: var(--line-strong); }
.training-access { min-height: 100vh; display: grid; place-content: center; justify-items: center; padding: 30px; text-align: center; }
.training-access h1 { margin: 15px 0 7px; }
.training-access p { color: var(--muted); }
.training-access a { margin-top: 8px; color: var(--accent); }

@media (max-width: 920px) {
  .intro-panel { align-items: flex-start; flex-direction: column; }
  .training-grid { grid-template-columns: 1fr; }
  .case-panel { min-height: 0; }
}
@media (max-width: 600px) {
  .training-header { padding: 12px 14px; }
  .training-brand .eyebrow { display: none; }
  .training-nav a { font-size: 0; }
  .training-nav a::after { content: "返回"; font-size: 12px; }
  .training-main { width: min(100% - 20px,1320px); padding-top: 12px; }
  .intro-panel, .import-panel, .case-panel { padding: 18px; border-radius: 16px; }
  .training-stats { width: 100%; grid-template-columns: repeat(3,1fr); }
}