.bc-page{max-width:1200px;margin:0 auto;padding:12px 0 24px}.bc-intro{display:flex;align-items:center;justify-content:space-between;gap:24px;margin:8px 0 30px}.bc-eyebrow{font-size:11px;letter-spacing:.16em;font-weight:750;color:var(--accent-ink);margin:0 0 10px}.bc-intro h1{font-size:clamp(25px,3vw,36px);line-height:1.24;letter-spacing:-.045em;margin:0 0 12px}.bc-lead{margin:0;color:var(--text-2);font-size:15px;line-height:1.7;max-width:690px}.bc-free{white-space:nowrap;border:1px solid #38b58c55;background:#1a735615;color:var(--ok);padding:7px 12px;border-radius:99px;font-size:12px;font-weight:650}.bc-workspace{display:grid;grid-template-columns:minmax(0,1fr) 330px;gap:24px;align-items:start}.bc-preview-panel,.bc-settings{min-width:0;background:var(--surface);border:1px solid var(--line);border-radius:16px;overflow:hidden}.bc-panel-heading{padding:22px 24px 20px;display:flex;align-items:center;justify-content:space-between;gap:14px}.bc-panel-heading h2,.bc-settings h2{font-size:17px;line-height:1.4;letter-spacing:-.03em;margin:0}.bc-preview-note{font-size:11px;color:var(--muted);white-space:nowrap}.bc-stage{padding:24px 28px 28px;min-height:300px;display:flex;flex-direction:column;justify-content:space-between;gap:38px;background-color:#080d17;background-image:linear-gradient(135deg,#394f7533,transparent 55%),linear-gradient(45deg,#ffffff04 25%,transparent 25%),linear-gradient(-45deg,#ffffff04 25%,transparent 25%),linear-gradient(45deg,transparent 75%,#ffffff04 75%),linear-gradient(-45deg,transparent 75%,#ffffff04 75%);background-size:auto,24px 24px,24px 24px,24px 24px,24px 24px;background-position:0 0,0 0,0 12px,12px -12px,-12px 0}.bc-stage-caption{display:flex;justify-content:space-between;gap:10px;color:#677b9d;font-size:9px;letter-spacing:.12em}.bc-stage-caption span+span{letter-spacing:.02em}.bc-stage-bottom{color:#8391a8}.bc-frame-wrap{width:100%;position:relative;min-width:0}.bc-frame-wrap iframe{color-scheme:normal;border:0;display:block;transform-origin:top left;max-width:none;background:transparent}.bc-preview-footer{display:flex;align-items:center;justify-content:space-between;padding:18px 24px;gap:16px;border-bottom:1px solid var(--line-soft)}.bc-preview-footer p{font-size:12px;color:var(--muted);margin:0;line-height:1.7}.bc-open{display:flex;align-items:center;gap:5px;font-size:12px;color:var(--accent-ink);white-space:nowrap;min-height:44px}.bc-open:hover{color:var(--text)}.bc-data-note{padding:8px 24px}.bc-data-note summary{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:44px;list-style:none;cursor:pointer;font-size:13px;font-weight:650}.bc-data-note summary::-webkit-details-marker{display:none}.bc-data-note summary::after{content:"+";font-size:20px;line-height:1;color:var(--muted);font-weight:400}.bc-data-note[open] summary::after{content:"−"}.bc-data-note>div{padding:0 0 14px}.bc-data-note p{font-size:12px;line-height:1.8;color:var(--muted);margin:7px 0 0}.bc-settings{padding:24px}.bc-settings-head{display:flex;align-items:center;gap:10px;margin-bottom:22px}.bc-step{color:var(--accent-ink);font-size:11px;font-weight:750;line-height:26px;width:27px;text-align:center;border:1px solid var(--line);border-radius:7px;background:var(--accent-soft)}.bc-settings fieldset{border:0;padding:0;margin:0 0 22px;min-width:0}.bc-settings legend{font-size:12px;font-weight:650;margin-bottom:9px;color:var(--text-2)}.bc-options{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}.bc-options-three{grid-template-columns:repeat(3,minmax(0,1fr))}.bc-choice{position:relative;min-width:0;cursor:pointer}.bc-choice input{position:absolute;opacity:0;width:1px;height:1px;margin:0}.bc-choice>span{display:flex;flex-direction:column;justify-content:center;align-items:center;min-height:58px;padding:10px 6px;border:1px solid var(--line);background:var(--bg);border-radius:8px;text-align:center;gap:3px}.bc-choice b{font-size:12px;font-weight:650}.bc-choice small{font-size:10px;color:var(--muted)}.bc-choice input:checked+span{border-color:var(--accent);box-shadow:inset 0 0 0 1px var(--accent);background:var(--accent-soft)}.bc-choice input:checked+span b{color:var(--accent-ink)}.bc-choice input:focus-visible+span{outline:2px solid var(--accent);outline-offset:3px}.bc-connect{margin:25px -24px -24px;padding:24px;background:var(--surface-2);border-top:1px solid var(--line)}.bc-connect .bc-settings-head{margin-bottom:18px}.bc-url-label{display:block;font-size:11px;color:var(--muted);margin-bottom:7px}.bc-url{width:100%;min-width:0;min-height:44px;padding:10px;border:1px solid var(--line);background:var(--bg);border-radius:7px;font-size:11px;letter-spacing:0;color:var(--text-2)}.bc-copy{margin-top:9px;width:100%;min-height:46px;padding:12px 14px;display:flex;justify-content:center;align-items:center;gap:8px;background:var(--accent);color:#fff;border:0;border-radius:8px;font-size:13px;font-weight:650}.bc-copy:hover{filter:brightness(1.12)}.bc-copy-status{font-size:11px;color:var(--accent-ink);line-height:1.6;margin:8px 0;min-height:18px}.bc-resolution{display:flex;align-items:center;justify-content:space-between;gap:10px;padding-top:8px}.bc-resolution>span{font-size:11px;color:var(--muted)}.bc-resolution b{font-variant-numeric:tabular-nums;font-size:17px;font-weight:650;white-space:nowrap}.bc-resolution small{color:var(--muted);font-size:12px;font-weight:400}.bc-tip{font-size:11px;color:var(--muted);margin:8px 0 0;line-height:1.6}.bc-guide{margin-top:32px;padding:27px 28px 22px;border:1px solid var(--line);border-radius:14px;background:var(--surface)}.bc-guide h2{font-size:18px;letter-spacing:-.03em;margin:0 0 24px}.bc-guide ol{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:30px}.bc-guide li{display:flex;gap:12px;align-items:flex-start;min-width:0}.bc-guide li>span{display:grid;place-items:center;flex-shrink:0;width:28px;height:28px;background:var(--surface-2);border:1px solid var(--line);border-radius:50%;color:var(--accent-ink);font-size:12px;font-weight:650}.bc-guide h3{font-size:13px;margin:4px 0 8px}.bc-guide li p{font-size:12px;line-height:1.75;color:var(--muted);margin:0}.bc-help{font-size:11px;color:var(--muted);display:inline-flex;align-items:center;min-height:44px;margin-top:12px}.bc-help:hover{color:var(--accent-ink)}.bc-bottom{display:flex;justify-content:space-between;align-items:center;gap:16px;margin-top:18px;font-size:11px;color:var(--muted)}.bc-bottom p{margin:0}.bc-bottom a{min-height:44px;display:flex;align-items:center;white-space:nowrap}.bc-noscript{padding:14px;color:var(--warn);border:1px solid var(--line);border-radius:8px}@media(max-width:1050px){.bc-workspace{grid-template-columns:minmax(0,1fr) 300px;gap:16px}.bc-settings{padding:20px}.bc-connect{margin:24px -20px -20px;padding:22px 20px}.bc-panel-heading{align-items:flex-start;flex-direction:column;gap:5px}.bc-preview-footer{align-items:flex-start;flex-direction:column;gap:2px}.bc-stage{padding:24px 20px;min-height:260px}.bc-guide ol{gap:20px}}@media(max-width:760px){.bc-page{padding-top:6px}.bc-intro{align-items:flex-start;gap:14px;flex-direction:column;margin-bottom:24px}.bc-intro h1{font-size:28px}.bc-lead{font-size:14px}.bc-free{font-size:11px;padding:5px 10px}.bc-workspace{grid-template-columns:1fr;gap:16px}.bc-panel-heading{padding:18px 20px;flex-direction:row;align-items:center}.bc-panel-heading h2{font-size:15px}.bc-preview-note{font-size:10px}.bc-stage{min-height:180px;gap:22px;padding:18px 20px}.bc-preview-footer{padding:13px 20px;flex-direction:row;align-items:center}.bc-preview-footer p{font-size:11px}.bc-open{font-size:11px}.bc-data-note{padding:6px 20px}.bc-settings{padding:22px}.bc-connect{margin:24px -22px -22px;padding:22px}.bc-choice>span{min-height:60px}.bc-choice b{font-size:13px}.bc-choice small{font-size:11px}.bc-url{font-size:12px}.bc-guide{padding:22px;margin-top:22px}.bc-guide h2{font-size:17px;margin-bottom:22px}.bc-guide ol{grid-template-columns:1fr;gap:22px}.bc-guide li{gap:13px}.bc-guide h3{font-size:14px;margin-top:3px}.bc-guide li p{font-size:13px}.bc-bottom{align-items:flex-start;flex-direction:column;gap:0}}@media(prefers-reduced-motion:no-preference){.bc-choice>span{transition:border-color .15s,background .15s}.bc-copy{transition:filter .15s}}