@keyframes bpSpin{to{transform:rotate(360deg)}}:root{--bp-navy:#081126;--bp-navy-2:#111a39;--bp-ink:#111827;--bp-muted:#667085;--bp-line:#e4e8f2;--bp-panel:#ffffff;--bp-bg:#f5f8ff;--bp-blue:#3658ff;--bp-blue-2:#6f55ff;--bp-green:#47bd87;--bp-red:#ff4d5e;--bp-shadow:0 18px 50px rgba(15, 23, 42, 0.10)}body.bp-page{min-height:100vh;margin:0;overflow-x:hidden;background:#f7f9ff;color:var(--bp-ink);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}.bp-page *{box-sizing:border-box}.bp-page button,.bp-page input,.bp-page select{font:inherit}.bp-page button{cursor:pointer}.bp-page svg{width:18px;height:18px;stroke-width:1.9}.bp-app{display:grid;grid-template-columns:252px minmax(0,1fr);height:100vh;overflow:hidden;background:linear-gradient(180deg,#f9fbff 0,#f3f6fb 100%);transition:grid-template-columns .28s ease}.bp-sidebar{position:sticky;top:0;z-index:20;display:flex;flex-direction:column;gap:16px;height:100vh;padding:22px 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ease}.bp-sidebar-drawer span{font-weight:800}.bp-sidebar-scrim{position:fixed;inset:0;z-index:45;background:rgba(7,16,36,.36);backdrop-filter:blur(2px)}.bp-sidebar-scrim[hidden]{display:none}.bp-app.is-sidebar-collapsed{grid-template-columns:0 minmax(0,1fr)}.bp-app.is-sidebar-collapsed .bp-sidebar{visibility:hidden;transform:translateX(-100%)}.bp-app.is-sidebar-collapsed .bp-sidebar-drawer{opacity:1;pointer-events:auto;transform:translateX(0)}.bp-brand{display:flex;align-items:center;gap:14px;color:#fff;text-decoration:none}.bp-brand-mark{display:grid;grid-template-columns:repeat(2,18px);gap:4px;width:44px;height:44px}.bp-brand-mark i{border-radius:7px;background:linear-gradient(135deg,#ff765f,#ffbf57);transform:skewY(-28deg)}.bp-brand strong{display:block;font-size:1.16rem;line-height:1.05}.bp-brand small,.bp-guide-card small,.bp-project-card dt{color:#b8c2da}.bp-new-project{border-radius:10px;color:#fff}.bp-guide-card,.bp-main-nav 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strong{display:block;margin-bottom:14px}.bp-project-thumb{position:relative;height:92px;overflow:hidden;border-radius:10px;background:linear-gradient(135deg,rgba(12,21,44,.12),rgba(12,21,44,.45)),linear-gradient(165deg,#d8e1ee 0 45%,#6d7d90 46% 48%,#b8c5d4 49% 100%)}.bp-project-thumb span{position:absolute;bottom:20px;width:52px;height:42px;border:3px solid #eef5ff;background:#334155;box-shadow:inset 0 0 0 8px #d6a15d}.bp-project-thumb span:nth-child(1){left:28px;height:55px}.bp-project-thumb span:nth-child(2){left:78px;height:72px}.bp-project-thumb span:nth-child(3){left:128px;height:55px}.bp-project-thumb span:nth-child(4){left:18px;bottom:8px;width:160px;height:16px;background:#e5e7eb;box-shadow:none}.bp-project-card dl{display:grid;gap:9px;margin:14px 0 0}.bp-project-card div:not(.bp-card-head):not(.bp-project-thumb){display:flex;justify-content:space-between;gap:12px}.bp-project-card dd,.bp-project-card dt{margin:0;font-size:.86rem}.bp-project-card dd{color:#fff;font-weight:750;text-align:right}.bp-guide-card{justify-content:space-between;margin-top:0}.bp-guide-card strong{display:block;margin-bottom:4px}.bp-main{min-width:0;height:100vh;overflow:hidden}.bp-topbar{position:relative;z-index:15;display:flex;align-items:center;justify-content:space-between;gap:20px;height:64px;min-height:64px;padding:10px 20px;border-bottom:1px solid var(--bp-line);background:rgba(255,255,255,.92);backdrop-filter:blur(18px)}.bp-scene-controls,.bp-scene-tools,.bp-title-block,.bp-top-actions,.bp-view-tabs{display:flex;align-items:center;gap:12px}.bp-title-block{min-width:0}.bp-title-block h1{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}.bp-cube{display:grid;place-items:center;flex:0 0 auto;width:44px;height:44px;border-radius:12px;color:var(--bp-blue);background:#eef2ff}.bp-project-title,.bp-save-state{display:flex;align-items:center;gap:7px}.bp-project-title{min-width:0}.bp-project-title 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var(--bp-line);background:#fff}.bp-elements-panel{grid-column:1;grid-row:1/3;min-height:0;padding:14px 12px;overflow-y:auto}.bp-template-panel{margin:0 0 14px;padding:0 0 14px;border-bottom:1px solid var(--bp-line)}.bp-template-head{display:flex;align-items:center;justify-content:space-between;gap:6px;margin-bottom:12px}.bp-template-head h2{display:grid;gap:2px;flex:1 1 auto;min-width:0;margin:0;font-size:1rem;line-height:1.12}.bp-template-head-actions{flex:0 0 auto;display:flex;align-items:center;gap:6px}.bp-template-head span{color:var(--bp-blue);font-size:.68rem;font-weight:850;white-space:nowrap}.bp-template-toggle{display:inline-flex;align-items:center;gap:4px;min-height:28px;padding:0 8px;border:1px solid #d9e0fb;border-radius:7px;color:#2637d8;background:#f7f8ff;font-size:.72rem;font-weight:850}.bp-template-toggle 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rgba(245,158,11,.16)}.bp-element-grid button.is-disabled,.bp-element-grid button:disabled{cursor:not-allowed;border-color:#e8edf7;color:#98a2b3;background:#f8fafc;box-shadow:none;opacity:.68}.bp-element-grid button.is-disabled:hover,.bp-element-grid button:disabled:hover{border-color:#e8edf7;color:#98a2b3;background:#f8fafc}.bp-upload-box{display:grid;place-items:center;min-height:76px;padding:13px;border:1px solid #cbd3ff;border-radius:10px;color:#4b57ce;background:#f5f6ff;text-align:center}.bp-upload-box small,.bp-upload-box span,.bp-upload-box strong{display:block}.bp-upload-box small,.bp-upload-box span{color:#667085;font-size:.78rem}.bp-center-panel{position:relative;grid-column:2;grid-row:1;min-width:0;min-height:0;padding:10px}.bp-scene-wrap,.bp-view-tabs{border:1px solid var(--bp-line)}.bp-view-tabs{position:absolute;z-index:4;left:14px;top:12px;transform:none;padding:5px;border-radius:10px;background:rgba(255,255,255,.92);box-shadow:0 12px 28px rgba(15,23,42,.08)}.bp-view-tabs 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