/* ═══════════════════════════════════════════
   素材库 (Asset Library) panel styles
   ═══════════════════════════════════════════ */

.asset-wrap{padding:24px;max-width:1100px;margin:0 auto;width:100%;overflow-y:auto;flex:1}
.asset-wrap h1{font-size:calc(20 * 1rem / 16);font-weight:600;margin-bottom:20px}

/* ── Tab 切换 ── */
.asset-tabs{display:flex;gap:4px;margin-bottom:20px;background:var(--bg3);border-radius:8px;padding:3px}
.asset-tab{flex:1;padding:8px 0;text-align:center;border:none;background:none;color:var(--text2);font-size:calc(13 * 1rem / 16);cursor:pointer;border-radius:6px;transition:all .2s}
.asset-tab.active{background:var(--accent);color:#fff;font-weight:500}
.asset-tab:hover:not(.active){background:var(--bg4);color:var(--text)}

.asset-section{display:none}
.asset-section.active{display:block}

/* ── 通用卡片 ── */
.asset-card{background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius);padding:20px;margin-bottom:16px}
.asset-card h3{font-size:calc(15 * 1rem / 16);font-weight:600;margin-bottom:12px;display:flex;align-items:center;gap:8px}
.asset-card h3 svg{width:18px;height:18px;stroke:var(--accent);fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.asset-card p.desc{font-size:calc(13 * 1rem / 16);color:var(--text2);margin-bottom:16px;line-height:1.6}

/* ── 表单 ── */
.asset-form{display:flex;flex-direction:column;gap:12px}
.asset-form-row{display:flex;align-items:center;gap:12px}
.asset-form-row .lbl{min-width:80px;font-size:calc(13 * 1rem / 16);color:var(--text2);text-align:right;flex-shrink:0}
.asset-form-row .input{flex:1;padding:8px 12px;background:var(--bg3);border:1px solid var(--border);border-radius:6px;color:var(--text);font-size:calc(13 * 1rem / 16);outline:none}
.asset-form-row .input:focus{border-color:var(--accent)}
.asset-form-row select.input{appearance:none;-webkit-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='%239898a8' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 10px center;padding-right:28px}

.asset-btn{padding:8px 20px;border:none;border-radius:6px;font-size:calc(13 * 1rem / 16);cursor:pointer;transition:all .2s;font-weight:500}
.asset-btn-primary{background:var(--accent);color:#fff}
.asset-btn-primary:hover{opacity:.85}
.asset-btn-primary:disabled{opacity:.5;cursor:not-allowed}
.asset-btn-ghost{background:var(--bg3);color:var(--text2);border:1px solid var(--border)}
.asset-btn-ghost:hover{background:var(--bg4);color:var(--text)}
.asset-btn-sm{padding:5px 12px;font-size:calc(12 * 1rem / 16)}
.asset-btn-danger{background:var(--red);color:#fff}
.asset-btn-danger:hover{opacity:.85}

.asset-actions{display:flex;gap:8px;margin-top:4px;justify-content:flex-end}

/* ── 结果/消息 ── */
.asset-msg{font-size:calc(12 * 1rem / 16);padding:8px 12px;border-radius:6px;margin-top:8px;display:none}
.asset-msg.ok{display:block;background:rgba(16,185,129,.12);color:var(--green)}
.asset-msg.err{display:block;background:rgba(239,68,68,.12);color:var(--red)}
.asset-msg.info{display:block;background:var(--accent-bg);color:var(--accent2)}

/* ── H5 链接展示 ── */
.asset-h5-link{display:flex;align-items:center;gap:8px;padding:10px 14px;background:var(--bg3);border:1px solid var(--border);border-radius:6px;margin-top:8px;word-break:break-all;font-size:calc(12 * 1rem / 16);color:var(--accent2)}
.asset-h5-link .copy-btn{flex-shrink:0;padding:4px 10px;font-size:calc(11 * 1rem / 16)}

/* ── 列表表格 ── */
.asset-table-wrap{overflow-x:auto;margin-top:12px}
.asset-table{width:100%;border-collapse:collapse;font-size:calc(13 * 1rem / 16)}
.asset-table th{text-align:left;padding:8px 12px;color:var(--text3);font-weight:500;font-size:calc(12 * 1rem / 16);border-bottom:1px solid var(--border);white-space:nowrap}
.asset-table td{padding:8px 12px;border-bottom:1px solid var(--border);color:var(--text);vertical-align:middle}
.asset-table tr:last-child td{border-bottom:none}
.asset-table tr:hover td{background:var(--bg3)}

.asset-status{display:inline-block;padding:2px 8px;border-radius:10px;font-size:calc(11 * 1rem / 16);font-weight:500}
.asset-status.active{background:rgba(16,185,129,.12);color:var(--green)}
.asset-status.processing{background:rgba(245,158,11,.12);color:var(--yellow)}
.asset-status.failed{background:rgba(239,68,68,.12);color:var(--red)}

.asset-id{font-family:'SF Mono',Monaco,monospace;font-size:calc(11 * 1rem / 16);color:var(--text2);cursor:pointer}
.asset-id:hover{color:var(--accent2)}

/* ── 分页 ── */
.asset-pager{display:flex;align-items:center;justify-content:center;gap:8px;margin-top:16px;font-size:calc(13 * 1rem / 16);color:var(--text2)}
.asset-pager button{padding:4px 12px;border-radius:4px}

/* ── 流程引导 ── */
.asset-steps{display:flex;gap:12px;margin-bottom:20px;flex-wrap:wrap}
.asset-step{flex:1;min-width:180px;padding:14px;background:var(--bg3);border-radius:8px;text-align:center;border:1px solid var(--border)}
.asset-step .step-num{display:inline-flex;align-items:center;justify-content:center;width:24px;height:24px;border-radius:50%;background:var(--accent);color:#fff;font-size:calc(12 * 1rem / 16);font-weight:600;margin-bottom:6px}
.asset-step .step-title{font-size:calc(13 * 1rem / 16);font-weight:500;margin-bottom:4px}
.asset-step .step-desc{font-size:calc(11 * 1rem / 16);color:var(--text3)}

/* ── 空状态 ── */
.asset-empty{text-align:center;padding:40px;color:var(--text3);font-size:calc(13 * 1rem / 16)}
.asset-empty svg{width:40px;height:40px;stroke:var(--text3);fill:none;stroke-width:1.5;margin-bottom:8px;display:block;margin-left:auto;margin-right:auto}

/* ── 上传区 ── */
.upload-zone{border:2px dashed var(--border);border-radius:12px;padding:32px 20px;text-align:center;transition:all .2s;cursor:pointer}
.upload-zone:hover{border-color:var(--accent);background:var(--accent-bg)}
.upload-zone.dragover{border-color:var(--accent);background:color-mix(in srgb,var(--accent) 10%,transparent);transform:scale(1.01)}
.upload-zone-inner svg{width:40px;height:40px;stroke:var(--accent);fill:none;stroke-width:1.5;margin-bottom:8px}
.upload-zone-inner p{font-size:calc(14 * 1rem / 16);color:var(--text);margin:0 0 4px;font-weight:500}

/* ── 响应式 ── */
@media(max-width:640px){
  .asset-form-row{flex-direction:column;align-items:stretch}
  .asset-form-row .lbl{text-align:left;min-width:auto}
  .asset-steps{flex-direction:column}
}

/* ═══════════════════════════════════════════
   视频参考：从图片创作选成片（浮层在素材库之上）
   ═══════════════════════════════════════════ */

.img4vid-backdrop{position:fixed;inset:0;background:rgba(0,0,0,.5);z-index:920}
.img4vid-panel{position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);width:680px;max-width:calc(100vw - 32px);max-height:calc(100vh - 64px);background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:0 24px 64px rgba(0,0,0,.4);z-index:925;display:none;flex-direction:column;overflow:hidden}
.img4vid-header{display:flex;flex-wrap:wrap;align-items:flex-start;gap:8px;padding:14px 18px;border-bottom:1px solid var(--border)}
.img4vid-header h3{font-size:calc(15 * 1rem / 16);font-weight:600;margin:0;flex:1;min-width:0}
.img4vid-hint{flex:1 1 100%;margin:0;font-size:calc(12 * 1rem / 16);color:var(--text3);line-height:1.45}
.img4vid-header .ov-close{margin-left:auto}
.img4vid-body{flex:1;overflow-y:auto;padding:12px 16px;min-height:100px}

.img4vid-fl-slot{display:flex;flex-wrap:wrap;align-items:center;gap:14px;padding:0 0 12px;margin-bottom:4px;border-bottom:1px solid var(--border)}
.img4vid-fl-label{font-size:calc(13 * 1rem / 16);color:var(--text2);font-weight:600}
.img4vid-fl-opt{font-size:calc(13 * 1rem / 16);color:var(--text);cursor:pointer;display:inline-flex;align-items:center;gap:6px;user-select:none}

@media(max-width:640px){
  .img4vid-panel{width:calc(100vw - 16px);max-height:calc(100vh - 32px)}
}

/* ═══════════════════════════════════════════
   素材选择器 (Asset Picker) overlay
   ═══════════════════════════════════════════ */

.asset-picker-backdrop{position:fixed;inset:0;background:rgba(0,0,0,.5);z-index:900}
.asset-picker{position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);width:680px;max-width:calc(100vw - 32px);max-height:calc(100vh - 64px);background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:0 24px 64px rgba(0,0,0,.4);z-index:910;display:flex;flex-direction:column;overflow:hidden}

.ap-header{display:flex;flex-direction:column;gap:12px;padding:16px 20px 14px;border-bottom:1px solid var(--border);flex-shrink:0}
.ap-header-top{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;min-width:0}
.ap-header-top h3{font-size:calc(15 * 1rem / 16);font-weight:600;margin:0;line-height:1.35;flex:1;min-width:0;word-break:break-word}
.ap-header-top .ov-close{flex-shrink:0;margin:0}
.ap-toolbar{display:flex;flex-wrap:wrap;align-items:center;gap:8px 10px}
.ap-toolbar .ap-filter-type,.ap-toolbar .ap-filter-status{width:min(128px,38vw);min-width:92px;padding:6px 10px;font-size:calc(12 * 1rem / 16)}
.ap-toolbar-actions{display:flex;align-items:center;gap:8px;flex-shrink:0;margin-left:auto;flex-wrap:nowrap}
.ap-upload-btn{padding:6px 14px;font-size:calc(12 * 1rem / 16);white-space:nowrap}

.ap-fl-slot-bar{padding:0 20px 12px;border-bottom:1px solid var(--border);flex-shrink:0}
.ap-fl-slot-bar[hidden]{display:none!important}

.ap-body{flex:1;overflow-y:auto;padding:12px 16px}

.ap-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:12px}
.ap-item{position:relative;background:var(--bg3);border:1px solid var(--border);border-radius:10px;overflow:hidden;cursor:pointer;transition:all .2s;aspect-ratio:1}
.ap-item:hover{border-color:var(--accent);box-shadow:0 0 0 2px var(--accent-bg)}
.ap-item.selected{border-color:var(--accent);box-shadow:0 0 0 2px var(--accent)}
.ap-item-img{width:100%;height:100%;object-fit:cover}
.ap-item-icon{width:100%;height:100%;display:flex;align-items:center;justify-content:center;background:var(--bg4)}
.ap-item-icon svg{width:32px;height:32px;stroke:var(--text3);fill:none;stroke-width:1.5}
.ap-item-info{position:absolute;bottom:0;left:0;right:0;padding:6px 8px;background:linear-gradient(transparent,rgba(0,0,0,.7));color:#fff;font-size:calc(11 * 1rem / 16)}
.ap-item-name{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-weight:500}
.ap-item-meta{font-size:calc(10 * 1rem / 16);opacity:.7;margin-top:2px}
.ap-item-check{position:absolute;top:6px;right:6px;width:22px;height:22px;border-radius:50%;background:var(--accent);color:#fff;display:none;align-items:center;justify-content:center;font-size:calc(14 * 1rem / 16);font-weight:700}
.ap-item.selected .ap-item-check{display:flex}

.ap-empty{text-align:center;padding:48px 20px;color:var(--text3);font-size:calc(13 * 1rem / 16);line-height:1.5}
.ap-empty-sub{display:block;font-size:calc(12 * 1rem / 16);opacity:.75;margin-top:6px;color:var(--text2)}
.ap-empty-link{margin-top:14px;background:none;border:none;padding:0;font:inherit;color:var(--accent2);text-decoration:underline;cursor:pointer}
.ap-empty-link:hover{opacity:.85}

.ap-footer{display:flex;align-items:center;justify-content:space-between;padding:12px 20px;border-top:1px solid var(--border);gap:12px}
.ap-footer-info{font-size:calc(12 * 1rem / 16);color:var(--text3)}
.ap-footer-actions{display:flex;gap:8px}
.ap-pager{display:flex;align-items:center;gap:8px;font-size:calc(12 * 1rem / 16);color:var(--text2)}
.ap-pager button{padding:3px 10px;font-size:calc(12 * 1rem / 16)}

.ref-thumb-asset{border-color:var(--accent) !important}
.ref-add-asset{border-color:var(--accent);color:var(--accent2)}
.ref-add-asset:hover{background:var(--accent-bg)}
.ref-add-disabled,.ref-add.ref-add-disabled{opacity:.42;cursor:not-allowed;pointer-events:none}
.ref-add.ref-add-disabled:hover{background:transparent;border-color:var(--border);color:var(--text3)}
.ref-add-asset svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}

@media(max-width:640px){
  .asset-picker{width:calc(100vw - 16px);max-height:calc(100vh - 32px)}
  .ap-grid{grid-template-columns:repeat(auto-fill,minmax(100px,1fr));gap:8px}
  .ap-toolbar-actions{width:100%;margin-left:0;justify-content:flex-end}
}