/* ============================================================
   pages/train.css · 实训中心（前缀 tr- / lab-）
   ============================================================ */

/* —— 场景库 —— */
.tr-filter { padding: 14px 16px; }
.tr-grid { grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); }
.tr-card { display: flex; flex-direction: column; overflow: hidden; }
.tr-card-cover { position: relative; aspect-ratio: 16 / 10; background: var(--deck); overflow: hidden; }
.tr-card-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.tr-card-cover img:not([src]) { visibility: hidden; }
.tr-card:hover .tr-card-cover img { transform: scale(1.04); }
.tr-code { position: absolute; left: 10px; top: 10px; padding: 2px 7px; border-radius: 3px; background: rgba(8, 12, 24, .72); color: #fff; font-size: 11px; letter-spacing: .06em; border: 1px solid rgba(255, 255, 255, .16); }
.tr-phase { position: absolute; right: 10px; top: 10px; }
.tr-phase .badge-outline { background: rgba(8, 12, 24, .72); color: rgba(255, 255, 255, .85); border-color: rgba(255, 255, 255, .25); }
.tr-run { position: absolute; left: 10px; bottom: 10px; display: inline-flex; align-items: center; gap: 5px; padding: 2px 8px; border-radius: 20px; font-size: 11.5px; color: rgba(255, 255, 255, .9); background: rgba(8, 12, 24, .6); backdrop-filter: blur(6px); }
.tr-card-body { padding: 14px 16px 12px; flex: 1; }
.tr-card-body h3 { font-size: 15px; margin: 6px 0 4px; }
.tr-dots { display: inline-flex; gap: 4px; }
.tr-dots i { width: 14px; height: 4px; border-radius: 2px; background: var(--surface-3); }
.tr-dots i.on { background: var(--amber); }

/* —— 场景详情 —— */
.tr-hero { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr); gap: 28px; align-items: stretch; }
.tr-stage { position: relative; min-height: 400px; border-radius: var(--r-m); background: var(--deck); }
.tr-view { position: absolute; inset: 0; border-radius: var(--r-m); overflow: hidden; }
.tr-hud { position: absolute; z-index: 2; display: flex; gap: 6px; align-items: center; font-size: 11.5px; color: rgba(255, 255, 255, .85); }
.tr-hud.tl { left: 12px; top: 12px; } .tr-hud.tr { right: 12px; top: 12px; } .tr-hud.bl { left: 12px; bottom: 12px; font-family: var(--font-mono); }
.tr-hud > span, .tr-hud.bl { padding: 3px 8px; border-radius: 4px; background: rgba(8, 12, 24, .66); border: 1px solid rgba(255, 255, 255, .12); display: inline-flex; align-items: center; gap: 5px; backdrop-filter: blur(6px); }
.tr-hud-btn { width: 30px; height: 30px; border-radius: 6px; display: grid; place-items: center; color: #fff; background: rgba(8, 12, 24, .66); border: 1px solid rgba(255, 255, 255, .14); }
.tr-hud-btn:hover { background: rgba(255, 255, 255, .16); }
.tr-hero-body { display: flex; flex-direction: column; justify-content: center; }
.tr-hero-body h1 { font-size: 26px; margin: 12px 0 10px; }
.tr-chain { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 10px; }
.tr-col { display: flex; flex-direction: column; gap: 8px; min-width: 0; }
.tr-col-h { display: flex; align-items: baseline; gap: 7px; padding: 8px 10px; border-radius: var(--r-s); background: var(--deck-2); color: #fff; font-size: 13px; }
.tr-col-h .mono { color: var(--amber); font-size: 11.5px; } .tr-col-h i { margin-left: auto; font-style: normal; font-family: var(--font-mono); font-size: 9.5px; letter-spacing: .1em; color: rgba(255, 255, 255, .45); }
.tr-col.is-empty .tr-col-h { opacity: .45; }
.tr-task { display: flex; flex-direction: column; gap: 6px; padding: 12px; border: 1px solid var(--line); border-radius: var(--r-m); background: var(--surface); transition: border-color .15s, box-shadow .15s, transform .15s; }
.tr-task:hover { border-color: var(--primary); box-shadow: var(--shadow-2); transform: translateY(-2px); }
.tr-task b { font-size: 13.5px; line-height: 1.45; }
.tr-task.cur { border-color: var(--amber); background: var(--amber-soft); }
.tr-task.done { background: var(--surface-2); }
.tr-kpi { display: flex; gap: 6px; padding-top: 8px; margin-top: auto; border-top: 1px dashed var(--line); color: var(--ink-2); }
.tr-kpi .ico { margin-top: 3px; color: var(--ok); }
.tr-none { padding: 14px 10px; border: 1px dashed var(--line); border-radius: var(--r-m); text-align: center; }
@media (max-width: 1280px) { .tr-chain { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
@media (max-width: 1000px) { .tr-hero { grid-template-columns: 1fr; } .tr-stage { min-height: 320px; } }
@media (max-width: 680px) { .tr-chain { grid-template-columns: 1fr; } }

/* —— 实训总览 —— */
.tr-pipe { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 0; border: 1px solid var(--line); border-radius: var(--r-m); background: var(--surface); overflow: hidden; }
.tr-pipe-step { position: relative; padding: 16px 16px 14px; border-right: 1px solid var(--line); }
.tr-pipe-step:last-child { border-right: 0; }
.tr-pipe-step .no { font-family: var(--font-mono); font-size: 11px; color: var(--amber-deep); letter-spacing: .08em; }
.tr-pipe-step b { display: flex; align-items: center; gap: 7px; font-size: 14.5px; margin: 6px 0 4px; }
.tr-pipe-step .n { font-size: 22px; font-weight: 650; margin-top: 10px; } .tr-pipe-step .n em { font-style: normal; font-size: 12px; color: var(--ink-3); font-weight: 400; margin-left: 3px; }
.tr-pipe-step::after { content: ""; position: absolute; right: -6px; top: 26px; width: 10px; height: 10px; border-top: 1px solid var(--line-strong); border-right: 1px solid var(--line-strong); transform: rotate(45deg); background: var(--surface); z-index: 1; }
.tr-pipe-step:last-child::after { display: none; }
@media (max-width: 1100px) { .tr-pipe { grid-template-columns: repeat(3, minmax(0, 1fr)); } .tr-pipe-step::after { display: none; } .tr-pipe-step { border-bottom: 1px solid var(--line); } }
.tr-mini { display: grid; grid-template-columns: 96px minmax(0, 1fr); gap: 12px; align-items: center; padding: 10px; border-radius: var(--r-m); border: 1px solid var(--line); background: var(--surface); }
.tr-mini:hover { border-color: var(--primary); }
.tr-mini img { width: 96px; height: 62px; object-fit: cover; border-radius: var(--r-s); background: var(--deck); }
.tr-mini img:not([src]) { visibility: hidden; }

/* —— 工作台（仿真舱，永远暗色） —— */
.lab { height: 100%; display: grid; grid-template-rows: 52px minmax(0, 1fr); background: var(--bg); color: var(--ink); }
.lab-top { display: flex; align-items: center; gap: 12px; padding: 0 14px; border-bottom: 1px solid var(--line); background: var(--surface); min-width: 0; }
.lab-title { display: flex; align-items: center; gap: 8px; min-width: 0; font-size: 13.5px; }
.lab-title .mono { color: var(--amber); font-size: 11.5px; } .lab-title b { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.lab-steps { display: flex; gap: 4px; margin-left: 8px; overflow-x: auto; scrollbar-width: none; }
.lab-step { display: inline-flex; align-items: center; gap: 6px; height: 30px; padding: 0 10px; border-radius: 6px; font-size: 12.5px; color: var(--ink-3); border: 1px solid transparent; white-space: nowrap; text-decoration: none !important; }
.lab-step .n { font-family: var(--font-mono); font-size: 10.5px; opacity: .8; }
.lab-step:hover { color: var(--ink); background: var(--surface-3); }
.lab-step.is-done { color: var(--ok); } .lab-step.is-active { color: var(--ink); background: var(--amber-soft); border-color: var(--amber); }
.lab-timer { font-family: var(--font-mono); font-size: 12.5px; color: var(--ink-2); padding: 0 6px; }
.lab-body { display: grid; grid-template-columns: minmax(0, 1fr) 6px minmax(380px, var(--lab-right, 480px)); min-height: 0; }
.lab-split { cursor: col-resize; background: var(--line); transition: background .15s; } .lab-split:hover, .lab-split.is-drag { background: var(--amber); }
.lab-left { display: grid; grid-template-rows: minmax(0, 1fr) auto; min-width: 0; min-height: 0; }
.lab-viewport { position: relative; min-height: 0; background: #080C18; overflow: hidden; }
.lab-viewport .lab-canvas { position: absolute; inset: 0; }
.lab-viewport::before, .lab-viewport::after { content: ""; position: absolute; z-index: 2; width: 16px; height: 16px; border: 1.5px solid var(--amber); pointer-events: none; }
.lab-viewport::before { left: 10px; top: 10px; border-right: 0; border-bottom: 0; } .lab-viewport::after { right: 10px; bottom: 10px; border-left: 0; border-top: 0; }
.lab-hud { position: absolute; z-index: 3; font-size: 11.5px; color: rgba(255, 255, 255, .86); }
.lab-hud.tl { left: 22px; top: 22px; width: 196px; padding: 10px 12px; border-radius: 8px; background: rgba(8, 12, 24, .7); border: 1px solid rgba(255, 255, 255, .1); backdrop-filter: blur(8px); }
.lab-hud.tr { right: 18px; top: 18px; display: flex; gap: 6px; }
.lab-hud.bl { left: 22px; bottom: 18px; display: flex; gap: 8px; align-items: center; }
.lab-hud .pill { padding: 3px 9px; border-radius: 20px; background: rgba(8, 12, 24, .7); border: 1px solid rgba(255, 255, 255, .12); font-family: var(--font-mono); backdrop-filter: blur(6px); display: inline-flex; gap: 6px; align-items: center; }
.lab-q { display: grid; grid-template-columns: 20px minmax(0, 1fr) 44px; gap: 6px; align-items: center; font-family: var(--font-mono); font-size: 10.5px; margin-top: 4px; color: rgba(255, 255, 255, .6); }
.lab-q .bar { height: 4px; border-radius: 3px; background: rgba(255, 255, 255, .12); position: relative; overflow: hidden; }
.lab-q .bar i { position: absolute; top: 0; bottom: 0; left: 50%; background: var(--azure); border-radius: 3px; }
.lab-q span:last-child { text-align: right; color: rgba(255, 255, 255, .85); }
.lab-ee { display: grid; grid-template-columns: repeat(3, 1fr); gap: 4px; margin-top: 8px; font-family: var(--font-mono); font-size: 10.5px; }
.lab-ee span { padding: 3px 0; text-align: center; border-radius: 4px; background: rgba(255, 255, 255, .07); }
.lab-ee em { font-style: normal; color: var(--amber); margin-right: 3px; }
.lab-bottom { border-top: 1px solid var(--line); background: var(--surface); display: grid; grid-template-rows: 36px minmax(0, 1fr); height: 214px; transition: height .2s; }
.lab-bottom.is-min { height: 36px; } .lab-bottom.is-min .lab-bpanel { display: none; }
.lab-btabs { display: flex; align-items: center; gap: 2px; padding: 0 8px; border-bottom: 1px solid var(--line); }
.lab-btab { height: 28px; padding: 0 10px; border-radius: 5px; font-size: 12.5px; color: var(--ink-3); display: inline-flex; gap: 6px; align-items: center; }
.lab-btab:hover { color: var(--ink); } .lab-btab.is-active { color: var(--ink); background: var(--surface-3); }
.lab-bpanel { overflow: auto; padding: 10px 14px; min-height: 0; }
.lab-log { font-family: var(--font-mono); font-size: 12px; line-height: 1.7; color: var(--ink-2); white-space: pre-wrap; }
.lab-log .t { color: var(--ink-4); margin-right: 8px; } .lab-log .ok { color: var(--ok); } .lab-log .warn { color: var(--warn); } .lab-log .err { color: var(--danger); }
.lab-right { display: grid; grid-template-rows: 42px minmax(0, 1fr); min-width: 0; min-height: 0; background: var(--surface); }
.lab-rtabs { display: flex; gap: 2px; padding: 0 10px; border-bottom: 1px solid var(--line); align-items: center; }
.lab-rtab { height: 30px; padding: 0 11px; border-radius: 6px; font-size: 13px; font-weight: 550; color: var(--ink-3); display: inline-flex; align-items: center; gap: 6px; }
.lab-rtab:hover { color: var(--ink); } .lab-rtab.is-active { color: var(--amber-ink); background: var(--amber); }
.lab-rpanel { overflow-y: auto; padding: 16px; min-height: 0; }
.lab-brief h3 { font-size: 16px; margin-bottom: 6px; }
.lab-check { display: flex; gap: 10px; padding: 9px 0; border-bottom: 1px solid var(--line); font-size: 13.5px; }
.lab-check .box { width: 18px; height: 18px; border-radius: 5px; border: 1.5px solid var(--line-strong); flex: 0 0 auto; display: grid; place-items: center; margin-top: 2px; color: #fff; }
.lab-check.is-done .box { background: var(--ok); border-color: var(--ok); } .lab-check.is-done { color: var(--ink-3); }
.lab-nbbar { display: flex; align-items: center; gap: 8px; margin-bottom: 12px; position: sticky; top: -16px; z-index: 4; padding: 8px 0; background: var(--surface); }
.lab-kernel { font-family: var(--font-mono); font-size: 11.5px; color: var(--ink-3); display: inline-flex; align-items: center; gap: 6px; margin-left: auto; }
.nb-run { width: 24px; height: 24px; border-radius: 5px; display: grid; place-items: center; color: var(--on-deck-2); background: rgba(255, 255, 255, .06); }
.nb-run:hover { background: var(--amber); color: var(--amber-ink); }
.nb-cell .nb-head .cnt { color: var(--azure); }
.lab-res { display: flex; align-items: center; gap: 10px; padding: 10px 12px; border: 1px solid var(--line); border-radius: var(--r-s); margin-bottom: 8px; font-size: 13.5px; width: 100%; text-align: left; }
.lab-res:hover { border-color: var(--primary); }
.lab-live-cta { display: inline-flex; align-items: center; gap: 7px; height: 32px; padding: 0 12px; border-radius: 6px; font-size: 12.5px; font-weight: 600; color: #fff; background: var(--brand-grad); }
.lab-live-cta:hover { filter: brightness(1.1); }
.lab-eval-row { display: grid; grid-template-columns: 22px minmax(0, 1fr) 60px; gap: 10px; align-items: center; padding: 9px 0; border-bottom: 1px solid var(--line); font-size: 13.5px; opacity: .35; transition: opacity .3s; }
.lab-eval-row.is-on { opacity: 1; } .lab-eval-row .sc { text-align: right; font-family: var(--font-mono); }
.lab-score { font-size: 46px; font-weight: 700; letter-spacing: -.03em; line-height: 1; }
@media (max-width: 1100px) { .lab-body { grid-template-columns: 1fr; grid-template-rows: 46vh auto; overflow-y: auto; } .lab-split { display: none; } .lab-steps { display: none; } }

/* —— 采训推各页 —— */
.tr-ds-grid { display: grid; grid-template-columns: minmax(0, 1fr) 360px; gap: 16px; align-items: start; }
@media (max-width: 1100px) { .tr-ds-grid { grid-template-columns: 1fr; } }
.tr-ep { display: grid; grid-template-columns: repeat(auto-fill, minmax(18px, 1fr)); gap: 3px; }
.tr-ep i { aspect-ratio: 1; border-radius: 3px; background: var(--c3); opacity: .85; } .tr-ep i.bad { background: var(--danger); } .tr-ep i.warn { background: var(--warn); }
.tr-where { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; }
.tr-where button { text-align: left; padding: 12px; border-radius: var(--r-m); border: 1px solid var(--line-strong); background: var(--surface); }
.tr-where button.is-active { border-color: var(--amber); background: var(--amber-soft); }
.tr-where b { display: flex; gap: 7px; align-items: center; font-size: 13.5px; }
.tr-dev { display: grid; grid-template-columns: 52px minmax(0, 1fr) auto; gap: 14px; align-items: center; padding: 14px 16px; }
.tr-dev-ico { width: 52px; height: 52px; border-radius: var(--r-m); display: grid; place-items: center; background: var(--deck-2); color: #fff; }
.tr-flow { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; font-size: 12.5px; color: var(--ink-2); }
.tr-flow span { padding: 4px 10px; border-radius: 20px; border: 1px solid var(--line); background: var(--surface-2); display: inline-flex; gap: 6px; align-items: center; }
.tr-matrix td, .tr-matrix th { text-align: center; } .tr-matrix td:first-child, .tr-matrix th:first-child { text-align: left; }
.tr-cell { display: inline-grid; place-items: center; width: 26px; height: 26px; border-radius: 6px; font-size: 11px; font-family: var(--font-mono); }
.tr-cell.p { background: var(--ok-soft); color: var(--ok); } .tr-cell.f { background: var(--danger-soft); color: var(--danger); } .tr-cell.r { background: var(--warn-soft); color: var(--warn); } .tr-cell.n { background: var(--surface-3); color: var(--ink-4); }
.tr-pf { overflow: hidden; display: flex; flex-direction: column; }
.tr-pf-cover { aspect-ratio: 16 / 9; background: var(--deck); position: relative; } .tr-pf-cover img { width: 100%; height: 100%; object-fit: cover; } .tr-pf-cover img:not([src]) { visibility: hidden; }
.tr-pf-cover .badge { position: absolute; left: 10px; top: 10px; }
.tr-badge { display: flex; flex-direction: column; align-items: center; gap: 6px; text-align: center; padding: 14px 8px; border: 1px solid var(--line); border-radius: var(--r-m); background: var(--surface); }
.tr-badge-ico { width: 46px; height: 46px; border-radius: 50%; display: grid; place-items: center; color: var(--amber-ink); background: linear-gradient(135deg, #FFC27A, #FF8A1F); }