/* ================================================================
   画布工作室 — 预览原型合并（作用域严格隔离于 .canvas-studio）
   避免与官方全局 .card / .btn / .title 等类名冲突
   ================================================================ */
.canvas-studio {
  --bg:#05070a; --bg-2:#0b0d11; --bg-3:#13161b; --surface:#191c22; --surface-2:#22262d; --surface-3:#2a2f38;
  --line:#252a32; --line-2:#2e343d; --txt:#f1f3f6; --txt-2:#9ca3af; --txt-3:#6b7280;
  --accent:#7c8cff; --accent-2:#F2D98F; --accent-grad:linear-gradient(135deg,#7c8cff,#F2D98F);
  --ok:#34d399; --warn:#fbbf24; --danger:#ef4444; --pill:#1f232a;
  --radius:12px; --radius-sm:8px; --shadow:0 16px 50px rgba(0,0,0,.55);
  flex:1; display:flex; min-height:0; height:100%;
}
.canvas-studio *{box-sizing:border-box;margin:0;padding:0}

/* 左侧窄边栏 */
.canvas-studio .ltbar{width:72px;flex-shrink:0;background:var(--bg-2);border-right:1px solid var(--line);display:flex;flex-direction:column;align-items:center;padding:10px 0;gap:6px;z-index:30;transition:width .25s ease, opacity .2s, border-color .25s, padding .25s;overflow:hidden}
.canvas-studio .ltbar.ltbar-collapsed{width:0;opacity:0;border-right-color:transparent;padding-left:0;padding-right:0;pointer-events:none}
/* 画布顶部左侧：左侧栏抽屉开关（‹ 收起 / › 展开） */
.canvas-studio .canvas-area .ltbar-toggle{position:absolute;left:80px;top:10px;width:32px;height:32px;border-radius:50%;background:var(--surface);border:1px solid var(--line-2);color:var(--txt-2);font-size:14px;display:grid;place-items:center;cursor:pointer;z-index:30;box-shadow:0 2px 8px rgba(0,0,0,.25);transition:left .25s ease, color .15s, border-color .15s, background .15s;line-height:1;padding:0}
.canvas-studio .canvas-area .ltbar-toggle:hover{color:var(--txt);border-color:var(--accent);background:var(--surface-2)}
.canvas-studio .ltbtn{width:42px;height:42px;border-radius:10px;background:transparent;border:1px solid transparent;color:var(--txt-3);cursor:pointer;font-size:17px;display:grid;place-items:center;position:relative}
.canvas-studio .ltbtn:hover{color:var(--txt);background:var(--surface)}
.canvas-studio .ltbtn.on{color:var(--txt);background:var(--surface);border-color:var(--line-2)}
.canvas-studio .ltbtn .beta{position:absolute;top:-2px;right:-2px;font-size:9px;background:var(--accent);color:#fff;padding:1px 4px;border-radius:8px}
.canvas-studio .ltsep{width:24px;height:1px;background:var(--line);margin:4px 0}
.canvas-studio .ltpages{margin-top:auto;display:flex;flex-direction:column;align-items:center;gap:2px;padding:8px 0;font-size:10px;color:var(--txt-3);line-height:1.6}

/* 资产缩略卡片（左侧边栏） */
.canvas-studio .asset-mini{width:52px;background:var(--surface);border:1px solid var(--line-2);border-radius:10px;padding:6px;margin-bottom:8px;display:flex;flex-direction:column;gap:5px;cursor:pointer;transition:.15s}
.canvas-studio .asset-mini:hover{border-color:var(--accent);transform:translateY(-1px)}
.canvas-studio .asset-mini .thumb{height:52px;border-radius:6px;background:var(--bg-3);display:grid;place-items:center;overflow:hidden;background-size:cover;background-position:center}
.canvas-studio .asset-mini .lbl{font-size:10px;color:var(--txt-3);text-align:center}
.canvas-studio .asset-mini .toggle{width:32px;height:18px;border-radius:20px;background:var(--line);margin:0 auto;position:relative;cursor:pointer;transition:.2s}
.canvas-studio .asset-mini .toggle.on{background:var(--accent-grad)}
.canvas-studio .asset-mini .toggle i{position:absolute;top:2px;left:2px;width:14px;height:14px;border-radius:50%;background:#fff;transition:.2s}
.canvas-studio .asset-mini .toggle.on i{left:16px}

/* 画布 */
.canvas-studio .canvas-area{position:relative;flex:1;overflow:hidden;background:var(--bg)}
.canvas-studio .canvas-grid{position:absolute;inset:0;transform-origin:0 0;
  background-image:radial-gradient(circle,rgba(255,255,255,.14) 1px,transparent 1px);
  background-size:20px 20px}
.canvas-studio .canvas-world{position:absolute;left:0;top:0;width:100%;height:100%;transform-origin:0 0}
.canvas-studio .canvas-hint{position:absolute;left:90px;bottom:14px;color:var(--txt-3);font-size:11px;background:rgba(13,16,21,.8);padding:5px 10px;border-radius:7px;border:1px solid var(--line);pointer-events:none}
.canvas-studio .zoom{position:absolute;left:14px;bottom:14px;display:flex;align-items:center;gap:4px;background:var(--bg-2);border:1px solid var(--line);border-radius:10px;padding:4px}
.canvas-studio .zoom button{width:28px;height:28px;border:none;background:transparent;color:var(--txt-3);font-size:15px;cursor:pointer;border-radius:6px;display:grid;place-items:center}
.canvas-studio .zoom button:hover{background:var(--surface-2);color:var(--txt)}
.canvas-studio .zoom span{min-width:42px;text-align:center;color:var(--txt-2);font-size:12px}

/* 连线 */
.canvas-studio .link{position:absolute;height:2px;background:var(--line-2);transform-origin:0 50%;pointer-events:none;z-index:1}
.canvas-studio .link::after{content:"";position:absolute;right:-5px;top:-3px;width:0;height:0;border-left:6px solid var(--line-2);border-top:4px solid transparent;border-bottom:4px solid transparent}

/* 工作卡片通用 */
.canvas-studio .card{position:absolute;width:360px;background:var(--surface);border:1px solid var(--line-2);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden;user-select:none;z-index:5}
.canvas-studio .card .hd{display:flex;align-items:center;gap:9px;padding:11px 14px;background:var(--surface-2);border-bottom:1px solid var(--line);cursor:grab}
.canvas-studio .card .hd .num{width:20px;height:20px;border-radius:5px;background:var(--surface-3);display:grid;place-items:center;font-size:11px;color:var(--txt-2);font-weight:700}
.canvas-studio .card .hd .t{font-weight:700;font-size:13px}
.canvas-studio .card .hd .tag{margin-left:auto;font-size:10px;color:var(--txt-3);background:var(--bg-3);padding:2px 7px;border-radius:10px;border:1px solid var(--line)}
.canvas-studio .card .hd .grip{margin-left:6px;color:var(--txt-3);font-size:13px;letter-spacing:1px;cursor:pointer}
/* 步骤卡头部：⋮ 上下文菜单 + 状态指示（替代原先易误解为「关闭」的 ✕） */
.canvas-studio .card .hd{position:relative}
.canvas-studio .card .hd .hd-menu{margin-left:6px;width:18px;height:18px;display:grid;place-items:center;border-radius:5px;color:var(--txt-3);font-size:14px;font-weight:700;cursor:pointer;transition:background .18s,color .18s}
.canvas-studio .card .hd .hd-menu:hover{background:var(--surface-3);color:var(--txt-1)}
.canvas-studio .card .hd .hd-stat{margin-left:4px;width:14px;height:14px;flex:0 0 14px;border-radius:50%;display:grid;place-items:center;font-size:10px;font-weight:800;line-height:1}
.canvas-studio .card .hd .hd-stat.idle{background:var(--surface-3);border:1px solid var(--line-2)}
.canvas-studio .card .hd .hd-stat.active{background:#38bdf8;box-shadow:0 0 0 0 rgba(56,189,248,.6);animation:csPulse 1.6s cubic-bezier(.16,1,.3,1) infinite}
.canvas-studio .card .hd .hd-stat.done{background:#22c55e;color:#fff}
@keyframes csPulse{0%{box-shadow:0 0 0 0 rgba(56,189,248,.55)}70%{box-shadow:0 0 0 7px rgba(56,189,248,0)}100%{box-shadow:0 0 0 0 rgba(56,189,248,0)}}
.canvas-studio .card .hd .hd-pop{position:absolute;top:calc(100% + 6px);right:8px;z-index:30;min-width:150px;background:var(--surface);border:1px solid var(--line-2);border-radius:10px;box-shadow:0 10px 30px rgba(0,0,0,.18);padding:5px;cursor:default}
.canvas-studio .card .hd .hd-pop button{width:100%;text-align:left;background:transparent;border:0;padding:8px 10px;border-radius:7px;font-size:12px;color:var(--txt-1);cursor:pointer;transition:background .16s}
.canvas-studio .card .hd .hd-pop button:hover{background:var(--surface-3)}
.canvas-studio .gate-actions .gate-hint{font-size:11px;color:var(--txt-3);align-self:center}
.canvas-studio .card .bd{padding:14px;display:flex;flex-direction:column;gap:12px}
.canvas-studio .card .ft{padding:10px 14px;border-top:1px solid var(--line);background:var(--surface-2);display:flex;gap:8px}

/* 卖点卡 */
.canvas-studio .sp-list{display:flex;flex-direction:column;gap:8px}
.canvas-studio .sp-item{display:flex;align-items:flex-start;gap:8px;padding:10px;background:var(--bg-3);border:1px solid var(--line);border-radius:10px}
.canvas-studio .sp-item .idx{width:20px;height:20px;border-radius:5px;background:var(--surface-2);display:grid;place-items:center;font-size:10px;color:var(--txt-2);font-weight:700;flex-shrink:0}
.canvas-studio .sp-item .txt{flex:1;font-size:12.5px;line-height:1.5;color:var(--txt)}
.canvas-studio .sp-item .del{color:var(--txt-3);cursor:pointer;font-size:13px;padding:0 2px}
.canvas-studio .sp-item .del:hover{color:var(--danger)}
.canvas-studio .add-sp{width:100%;padding:9px;border:1px dashed var(--line-2);background:transparent;color:var(--txt-3);border-radius:8px;font-size:12px;cursor:pointer}
.canvas-studio .add-sp:hover{border-color:var(--accent);color:var(--txt)}
.canvas-studio .slogan-row{display:flex;align-items:center;gap:8px;padding:10px;background:var(--bg-3);border:1px solid var(--line);border-radius:10px}
.canvas-studio .slogan-row .lb{font-size:11px;color:var(--txt-3);flex-shrink:0}
.canvas-studio .slogan-row .val{flex:1;font-size:12.5px;color:var(--txt);background:transparent;border:none;outline:none}
.canvas-studio .slogan-row .edit{color:var(--txt-3);cursor:pointer}

/* 创意方向卡 */
.canvas-studio .dir-list{display:flex;flex-direction:column;gap:8px}
.canvas-studio .dir-item{display:flex;gap:10px;padding:11px;background:var(--bg-3);border:1px solid var(--line);border-radius:10px;cursor:pointer;transition:.15s}
.canvas-studio .dir-item:hover{border-color:var(--line-2)}
.canvas-studio .dir-item.on{border-color:var(--accent);background:rgba(124,140,255,.08)}
.canvas-studio .dir-item .radio{width:16px;height:16px;border-radius:50%;border:2px solid var(--txt-3);flex-shrink:0;margin-top:2px;display:grid;place-items:center}
.canvas-studio .dir-item.on .radio{border-color:var(--accent)}
.canvas-studio .dir-item.on .radio::after{content:"";width:8px;height:8px;border-radius:50%;background:var(--accent)}
.canvas-studio .dir-item .body{flex:1;min-width:0}
.canvas-studio .dir-item .title{display:flex;align-items:center;gap:8px;margin-bottom:4px}
.canvas-studio .dir-item .title b{font-size:13px;color:var(--txt)}
.canvas-studio .dir-item .title .type{font-size:10px;color:var(--txt-3);background:var(--surface-2);padding:1px 6px;border-radius:6px}
.canvas-studio .dir-item .desc{font-size:12px;color:var(--txt-2);line-height:1.55;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.canvas-studio .dir-item.pick{cursor:pointer}
.canvas-studio .dir-item.pick:hover{transform:translateY(-1px);border-color:var(--accent)}
.canvas-studio .dir-item .title .track-tag{font-size:10px;color:var(--accent);background:rgba(124,140,255,.12);padding:1px 6px;border-radius:6px;font-weight:600}
.canvas-studio .dir-list.pick-list{max-height:300px;overflow:auto}
.canvas-studio .src-note{font-size:11px;color:var(--txt-3);background:var(--surface-2);border:1px solid var(--line);border-radius:8px;padding:6px 9px;line-height:1.5}

/* 建议框（阿研/阿爆给你的可落地建议） */
.canvas-studio .sugg{margin-top:8px;background:linear-gradient(135deg,rgba(232, 184, 75,.10),rgba(176,107,255,.06));border:1px solid rgba(232, 184, 75,.28);border-radius:10px;padding:8px 10px}
.canvas-studio .sugg-h{font-size:11px;font-weight:700;color:var(--accent,#E8B84B);margin-bottom:4px}
.canvas-studio .sugg-i{font-size:11px;line-height:1.55;color:var(--txt-2);padding:2px 0 2px 2px}

/* 选题卡 · 推荐理由 */
.canvas-studio .dir-item .why{font-size:11px;line-height:1.5;color:var(--txt-3);background:var(--surface-2);border-left:2px solid var(--accent,#E8B84B);border-radius:0 6px 6px 0;padding:3px 8px;margin-top:4px}

/* 品牌素材卡 · 图片上传 */
.canvas-studio .img-upload{margin:8px 0;padding:8px;border:1px dashed var(--line);border-radius:10px;background:var(--surface-2)}
.canvas-studio .img-upload.drag{border-color:var(--accent,#E8B84B);background:rgba(232, 184, 75,.08)}
.canvas-studio .img-row{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.canvas-studio .img-name{font-size:11px;color:var(--txt-3);max-width:120px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.canvas-studio .img-clear{border:none;background:none;color:var(--txt-3);cursor:pointer;font-size:13px;line-height:1;padding:2px 4px}
.canvas-studio .img-prev{margin-top:8px;height:90px;border-radius:8px;background-size:cover;background-position:center;background-color:var(--bg-3);border:1px solid var(--line)}
.canvas-studio .doc-upload{margin:8px 0;padding:8px;border:1px dashed var(--line);border-radius:10px;background:var(--surface-2)}
.canvas-studio .doc-row{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.canvas-studio .doc-name{font-size:11px;color:var(--txt-3);max-width:120px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.canvas-studio .doc-prev{margin-top:8px;padding:6px 8px;border-radius:8px;background:var(--bg-3);border:1px solid var(--line);font-size:11px;color:var(--txt-2);line-height:1.4}
/* ② Phase3：c1 参考图三槽（角色图/产品图/场景图）+ 描述符输入 */
.canvas-studio .ref-upload{margin:8px 0;padding:8px;border:1px dashed var(--line);border-radius:10px;background:var(--surface-2);display:flex;flex-direction:column;gap:8px}
.canvas-studio .ref-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.canvas-studio .ref-slot{display:flex;flex-direction:column;gap:6px}
.canvas-studio .ref-slot.drag{border-color:var(--accent,#E8B84B);background:rgba(232, 184, 75,.08)}
.canvas-studio .ref-head{display:flex;align-items:baseline;gap:6px;font-size:12px;color:var(--txt-2);font-weight:600}
.canvas-studio .ref-head i{font-style:normal;font-size:10px;color:var(--txt-3);font-weight:400}
.canvas-studio .ref-desc{display:flex;flex-direction:column;gap:6px;margin-top:2px}
.canvas-studio .ref-input{width:100%;box-sizing:border-box;font-size:12px;padding:6px 8px;border:1px solid var(--line);border-radius:8px;background:var(--bg-3);color:var(--txt)}
.canvas-studio .ref-input::placeholder{color:var(--txt-3)}
.canvas-studio .img-prev-multi{display:flex;gap:6px;flex-wrap:wrap;margin-top:6px}
.canvas-studio .img-prev-multi .thumb{width:64px;height:64px;border-radius:8px;background-size:cover;background-position:center;border:1px solid var(--line)}
.canvas-studio .btn.ghost.sm{padding:5px 10px;font-size:11px}

/* 分镜脚本卡 */
.canvas-studio .sb-list{display:flex;flex-direction:column;gap:10px}
.canvas-studio .sb-item{display:flex;gap:12px}
.canvas-studio .sb-item .time{width:58px;flex-shrink:0;text-align:right;font-size:11px;color:var(--txt-3);padding-top:2px}
.canvas-studio .sb-item .time .seg{font-size:12px;color:var(--accent);font-weight:700;display:block;margin-bottom:2px}
.canvas-studio .sb-item .body{flex:1;padding:10px 12px;background:var(--bg-3);border:1px solid var(--line);border-radius:10px;font-size:12.5px;line-height:1.6;color:var(--txt)}

/* 资产卡 */
.canvas-studio .asset-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.canvas-studio .asset-cell{display:flex;flex-direction:column;gap:6px}
.canvas-studio .asset-cell .an{font-size:11px;color:var(--txt-3)}
.canvas-studio .asset-cell .box{aspect-ratio:1;background:var(--bg-3);border:1px solid var(--line);border-radius:10px;display:grid;place-items:center;overflow:hidden;position:relative;background-size:cover;background-position:center}
.canvas-studio .asset-cell .box img{width:100%;height:100%;object-fit:cover}
.canvas-studio .asset-cell .box .fail{position:absolute;inset:0;background:rgba(5,7,10,.75);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;color:var(--danger);font-size:11px}
.canvas-studio .asset-cell .genbtn{width:100%;padding:7px;border-radius:6px;background:var(--surface-2);border:1px solid var(--line);color:var(--txt-2);font-size:11px;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:4px}
.canvas-studio .asset-cell .genbtn:hover{border-color:var(--accent);color:var(--txt)}
.canvas-studio .asset-cell .genbtn .cost{color:var(--warn);font-size:10px}
/* 画布节点生成按钮的积分消耗标注 */
.canvas-studio .btn .step-cost{margin-left:6px;font-size:11px;font-weight:600;opacity:.92;white-space:nowrap}
.canvas-studio .btn .step-cost.free{color:#34d399}
.canvas-studio .btn .step-cost.pay{color:var(--warn)}
.canvas-studio .asset-cell .genbtn .step-cost{color:var(--warn);font-size:10px;margin-left:3px}
.canvas-studio .asset-cell .genbtn:disabled{opacity:.6;cursor:default}

/* 商品资料卡（画布第一步） */
.canvas-studio .prod-card{width:280px}
.canvas-studio .prod-card .main-img{height:160px;border-radius:10px;background:var(--bg-3);background-size:cover;background-position:center;margin-bottom:12px;position:relative}
.canvas-studio .prod-card .meta{display:flex;flex-direction:column;gap:8px}
.canvas-studio .prod-card .meta .row{display:flex;justify-content:space-between;font-size:12px;color:var(--txt-2)}
.canvas-studio .prod-card .meta .row b{color:var(--txt)}
.canvas-studio .prod-card .need{font-size:12px;color:var(--txt-2);line-height:1.5;padding:8px;background:var(--bg-3);border-radius:8px;border:1px solid var(--line);width:100%;resize:none;outline:none;font-family:inherit}
.canvas-studio .prod-card .need:focus{color:var(--txt);border-color:var(--accent);background:var(--surface)}
.canvas-studio .prod-card .need::placeholder{color:var(--txt-3);opacity:.8}

/* 按钮 */
.canvas-studio .btn{border:none;border-radius:8px;padding:9px 14px;font-size:12.5px;font-weight:600;cursor:pointer;transition:.15s;display:flex;align-items:center;justify-content:center;gap:5px}
.canvas-studio .btn.primary{background:var(--txt);color:var(--bg);flex:1}
.canvas-studio .btn.primary:hover{filter:brightness(1.15)}
.canvas-studio .btn.ghost{background:var(--surface);border:1px solid var(--line);color:var(--txt-2)}
.canvas-studio .btn.ghost:hover{border-color:var(--accent);color:var(--txt)}
.canvas-studio .btn:disabled{opacity:.5;cursor:default}
.canvas-studio .btn.full{width:100%}
.canvas-studio .btn.run::before{content:"";width:12px;height:12px;border:2px solid rgba(255,255,255,.3);border-top-color:#fff;border-radius:50%;animation:cs-spin .7s linear infinite}
@keyframes cs-spin{to{transform:rotate(360deg)}}

/* 右侧助手 */
.canvas-studio .assistant{width:390px;flex-shrink:0;background:var(--bg-2);border-left:1px solid var(--line);display:flex;flex-direction:column;min-height:0}
.canvas-studio .as-head{padding:12px 14px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between}
.canvas-studio .as-title{font-weight:700;font-size:14px;display:flex;align-items:center;gap:7px}
.canvas-studio .as-head .acts{display:flex;gap:6px;padding:0;align-items:center}
.canvas-studio .as-head .acts .btn{padding:6px 10px;font-size:12px}
.canvas-studio .as-head .acts .btn.skill{display:flex;align-items:center;gap:4px;background:#b48a2a;border:1px solid #c99b33;color:#fff}
.canvas-studio .as-head .acts .btn.skill:hover{filter:brightness(1.1)}
.canvas-studio .ctx-bar{padding:8px 14px;border-bottom:1px solid var(--line);font-size:11px;color:var(--txt-3);display:flex;align-items:center;gap:8px}
.canvas-studio .ctx-bar .chip{background:var(--surface);border:1px solid var(--line);padding:2px 7px;border-radius:6px;color:var(--txt-2)}
.canvas-studio .chat{flex:1;overflow-y:auto;padding:12px 16px;display:flex;flex-direction:column;gap:12px}
.canvas-studio .chat::-webkit-scrollbar{width:6px}.canvas-studio .chat::-webkit-scrollbar-thumb{background:var(--line);border-radius:3px}
.canvas-studio .bub{max-width:92%;padding:10px 12px;border-radius:12px;font-size:13px;line-height:1.65;white-space:pre-wrap}
.canvas-studio .bub.user{align-self:flex-end;background:var(--accent-grad);color:#fff;border-bottom-right-radius:4px}
.canvas-studio .bub.ai{align-self:flex-start;background:var(--surface);border:1px solid var(--line);border-bottom-left-radius:4px}
.canvas-studio .bub.ai .who{font-size:11px;color:var(--accent);font-weight:600;margin-bottom:4px}
.canvas-studio .bub.ai .ctx{font-size:11px;color:var(--txt-3);margin-bottom:6px;padding-bottom:6px;border-bottom:1px solid var(--line)}
.canvas-studio .bub.ai b{color:var(--txt)}
.canvas-studio .steps{display:flex;flex-direction:column;gap:6px;margin-top:8px}
.canvas-studio .step{display:flex;align-items:center;gap:8px;font-size:11.5px;color:var(--txt-2)}
.canvas-studio .step .d{width:13px;height:13px;border-radius:50%;border:2px solid var(--line);flex-shrink:0}
.canvas-studio .step.run .d{border-color:var(--accent);border-top-color:transparent;animation:cs-spin .7s linear infinite}
.canvas-studio .step.done .d{background:var(--ok);border-color:var(--ok)}
.canvas-studio .step.done .d::after{content:"✓";color:#06210f;font-size:9px;display:grid;place-items:center;height:100%}
.canvas-studio .as-in{padding:12px 14px;border-top:1px solid var(--line);background:var(--bg-2)}
.canvas-studio .in-wrap{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:10px 12px}
.canvas-studio .in-row{display:flex;align-items:flex-end;gap:8px}
.canvas-studio .in-row textarea{flex:1;background:transparent;border:none;padding:0;resize:none!important;max-height:90px;color:var(--txt);font-size:13px;overflow:hidden}
.canvas-studio .in-row textarea::placeholder{color:var(--txt-3)}
.canvas-studio .send{width:32px;height:32px;border-radius:9px;background:var(--accent-grad);border:none;color:#fff;font-size:15px;cursor:pointer;flex-shrink:0;display:grid;place-items:center}
.canvas-studio .tool-row{display:flex;gap:6px;margin-top:10px;align-items:center}
.canvas-studio .tool{display:flex;align-items:center;gap:5px;background:transparent;border:1px solid var(--line);border-radius:8px;padding:6px 10px;font-size:12px;color:var(--txt-2);cursor:pointer}
.canvas-studio .tool:hover{border-color:var(--accent);color:var(--txt)}
.canvas-studio .tool .new{font-size:9px;background:var(--warn);color:#000;padding:1px 4px;border-radius:6px;font-weight:700}
.canvas-studio .tool.me{width:26px;height:26px;padding:0;border-radius:50%;background:var(--accent-grad);color:#fff;border:none;justify-content:center;margin-left:auto}

/* 顶部提示条 */
.canvas-studio .top-toast{position:absolute;top:14px;left:50%;transform:translateX(-50%);background:var(--warn);color:#000;font-size:12px;font-weight:600;padding:7px 16px;border-radius:20px;display:flex;align-items:center;gap:6px;z-index:20;opacity:0;transition:.2s;pointer-events:none}
.canvas-studio .top-toast.show{opacity:1}

/* ===== 全链路对接补充样式 ===== */
.canvas-studio .gate-actions{display:flex;gap:8px;margin-top:10px}
.canvas-studio .gate-actions .btn{flex:1}
.canvas-studio .bub.ai .raw{background:var(--bg-2);border:1px solid var(--line);border-radius:8px;padding:9px 11px;margin-top:8px;font-size:12px;line-height:1.6;color:var(--txt-2);white-space:pre-wrap;max-height:280px;overflow:auto}
.canvas-studio .bub.ai .raw .k{color:var(--accent-2);font-weight:600}
.canvas-studio .vd-box{margin-top:10px;border:1px solid var(--line);border-radius:10px;overflow:hidden;background:#000;position:relative}
.canvas-studio .vd-box video{width:100%;display:block;background:#000}
.canvas-studio .vd-box .vd-bar{display:flex;gap:8px;padding:8px;background:var(--surface-2)}
.canvas-studio .vd-box .vd-bar .btn{flex:1;padding:7px;font-size:12px}
.canvas-studio .prog{margin-top:10px;height:6px;background:var(--bg-3);border-radius:6px;overflow:hidden}
.canvas-studio .prog > i{display:block;height:100%;width:0;background:var(--accent-grad);transition:width .4s}
.canvas-studio .tag-ok{color:var(--ok);font-weight:600}
.canvas-studio .tag-err{color:var(--danger);font-weight:600}
.canvas-studio .model-note{font-size:11px;color:var(--txt-3);margin-top:6px}
.canvas-studio .vd-box .ai-badge{position:absolute;top:8px;right:8px;z-index:5;background:rgba(0,0,0,.55);color:#fff;font-size:11px;font-weight:700;padding:2px 8px;border-radius:6px;letter-spacing:1px;pointer-events:none;backdrop-filter:blur(2px)}
.canvas-studio .asset-note{font-size:11px;color:var(--ok);margin-top:6px;background:rgba(34,197,94,.08);border:1px solid rgba(34,197,94,.25);padding:5px 8px;border-radius:6px;line-height:1.5}

/* ===== P3 题材切换 chips ===== */
.canvas-studio .topic-row{display:flex;align-items:center;gap:6px;padding:9px 12px;background:var(--surface-2);border-bottom:1px solid var(--line);flex-wrap:wrap}
.canvas-studio .topic-lb{font-size:11px;color:var(--txt-3);font-weight:600;margin-right:2px}
.canvas-studio .topic-chip{font-size:11px;padding:5px 11px;border-radius:14px;border:1px solid var(--line);background:var(--bg-2);color:var(--txt-2);cursor:pointer;transition:.15s;white-space:nowrap}
.canvas-studio .topic-chip:hover{border-color:var(--accent-2);color:var(--txt)}
.canvas-studio .topic-chip.on{background:var(--accent-grad);color:#fff;border-color:transparent;font-weight:600}

/* ===== 助手收起 / 重开 ===== */
.canvas-studio .assistant.as-collapsed{display:none}
.canvas-studio .assistant-reopen{position:absolute;right:18px;bottom:18px;z-index:30;display:none;align-items:center;gap:6px;padding:9px 15px;border-radius:22px;background:var(--accent-grad);color:#fff;border:none;font-size:13px;font-weight:600;cursor:pointer;box-shadow:0 8px 24px rgba(0,0,0,.35)}
.canvas-studio .assistant-reopen.show{display:flex}
.canvas-studio .assistant-reopen:hover{filter:brightness(1.08)}

/* ===== Skill 题材 / 召唤专家 弹层 ===== */
.canvas-studio .cs-pop{position:fixed;z-index:60;background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:13px;box-shadow:0 16px 48px rgba(0,0,0,.45);min-width:230px;max-width:300px}
.canvas-studio .cs-pop h4{font-size:12px;color:var(--txt-3);margin:0 0 9px;font-weight:600}
.canvas-studio .cs-pop .topic-chip{margin:0 6px 7px 0}
.canvas-studio .cs-pop .expert-opt{display:flex;flex-direction:column;gap:7px}
.canvas-studio .cs-pop .expert-opt button{display:flex;flex-direction:column;gap:2px;text-align:left;padding:9px 11px;border-radius:10px;border:1px solid var(--line);background:var(--bg-2);color:var(--txt);cursor:pointer;transition:.15s}
.canvas-studio .cs-pop .expert-opt button:hover{border-color:var(--accent);background:var(--surface-2)}
.canvas-studio .cs-pop .expert-opt .ex-name{font-size:13px;font-weight:600}
.canvas-studio .cs-pop .expert-opt .ex-desc{font-size:11px;color:var(--txt-3)}

/* ===== 画布可视化工作流编辑器 ===== */
.canvas-studio .wf-head{position:absolute;display:flex;align-items:center;gap:10px;z-index:6;background:rgba(13,16,21,.72);padding:5px 8px;border-radius:10px;border:1px solid var(--line);backdrop-filter:blur(4px)}
.canvas-studio .wf-title{font-size:12px;font-weight:700;color:var(--txt)}
.canvas-studio .wf-node{width:192px}
.canvas-studio .wf-node .hd{cursor:grab}
.canvas-studio .wf-node .hd.grabbing,
.canvas-studio .wf-node.dragging .hd{cursor:grabbing}
.canvas-studio .wf-ico{width:24px;height:24px;border-radius:7px;display:grid;place-items:center;font-size:13px;flex-shrink:0;box-shadow:inset 0 0 0 1px rgba(255,255,255,.14)}
.canvas-studio .wf-node .bd{gap:7px;padding:10px 12px}
.canvas-studio .wf-type{font-size:11px;font-weight:700}
.canvas-studio .wf-skill{font-size:10.5px;color:var(--txt-3);line-height:1.4}
.canvas-studio .wf-gate{font-size:10.5px;color:var(--warn);font-weight:600}
.canvas-studio .link.graph{background:var(--accent);opacity:.75;z-index:2;box-shadow:0 0 6px rgba(124,140,255,.4)}
.canvas-studio .link.graph::after{border-left-color:var(--accent)}
.canvas-studio .wf-node:hover{border-color:var(--accent);box-shadow:0 0 0 1px var(--accent),var(--shadow)}

/* ===== ② 分镜逐条生成 + 拼接 进度 UI ===== */
.canvas-studio .sb-prog{height:6px;background:var(--surface-2);border-radius:6px;overflow:hidden;margin:4px 0 2px}
.canvas-studio .sb-prog i{display:block;height:100%;width:0;background:var(--accent-grad);border-radius:6px;transition:width .4s ease}
.canvas-studio .sb-list{display:flex;flex-direction:column;gap:2px}
.canvas-studio .sb-row{display:flex;align-items:center;gap:8px;padding:4px 6px;border-radius:6px;background:var(--surface-2)}
.canvas-studio .sb-stat{width:16px;height:16px;border-radius:50%;display:grid;place-items:center;font-size:11px;flex-shrink:0;transition:.2s}
.canvas-studio .sb-stat.pending{background:rgba(255,255,255,.12);color:var(--txt-3)}
.canvas-studio .sb-stat.active{background:var(--accent);color:#fff;box-shadow:0 0 0 3px rgba(124,140,255,.25);animation:pulseStat 1.2s infinite}
.canvas-studio .sb-stat.done{background:rgba(34,197,94,.18);color:var(--ok)}
.canvas-studio .sb-stat.failed{background:rgba(239,68,68,.18);color:#f87171}
.canvas-studio .sb-no{font-weight:700;font-size:11px;color:var(--txt);flex-shrink:0}
.canvas-studio .sb-dur{font-size:10px;color:var(--txt-3);flex-shrink:0;min-width:26px}
.canvas-studio .sb-desc{font-size:11px;color:var(--txt-2);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.canvas-studio .sb-final video{display:block;background:#000;border-radius:8px}
@keyframes pulseStat{0%{box-shadow:0 0 0 0 rgba(124,140,255,.4)}70%{box-shadow:0 0 0 5px rgba(124,140,255,0)}100%{box-shadow:0 0 0 0 rgba(124,140,255,0)}}

/* ===== ② Phase3 连贯模式切换 ===== */
.canvas-studio .sb-mode{display:inline-flex;gap:4px;background:var(--surface-2);border-radius:8px;padding:3px;margin-right:8px}
.canvas-studio .sb-mode-opt{border:0;background:transparent;color:var(--txt-2);font-size:12px;padding:5px 10px;border-radius:6px;cursor:pointer;transition:.15s}
.canvas-studio .sb-mode-opt:hover{color:var(--txt)}
.canvas-studio .sb-mode-opt.active{background:var(--accent);color:#fff;font-weight:700}
/* ② Phase3 一致性锚点指示条：明确当前锁定的参考类别（支持部分上传/纯文字） */
.canvas-studio .sb-anchors{display:flex;flex-wrap:wrap;gap:6px;margin:8px 0 4px}
.canvas-studio .sb-anchor{font-size:11px;padding:3px 9px;border-radius:999px;border:1px solid var(--line);line-height:1.4}
.canvas-studio .sb-anchor.on{background:color-mix(in srgb,var(--accent) 16%,transparent);border-color:color-mix(in srgb,var(--accent) 45%,transparent);color:var(--txt);font-weight:600}
.canvas-studio .sb-anchor.off{background:var(--bg-3);color:var(--txt-3);text-decoration:line-through;opacity:.7}