:root{--bg: #eef1f4;--card: #ffffff;--text: #1f2937;--muted: #8b95a5;--line: #e8edf2;--purple: #ece7ff;--purple-text: #5b4db8;--green: #22c55e;--green-dark: #16a34a;--danger: #e11d48;--radius: 18px;--font: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;color:var(--text);background:var(--bg);font-family:var(--font);font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased}*{box-sizing:border-box}html,body,#root{margin:0;min-height:100%}body{min-height:100vh;background:var(--bg)}button,select,input{font:inherit}.app{max-width:1200px;margin:0 auto;padding:18px 18px 40px}.topbar{margin-bottom:14px;display:flex;align-items:center;justify-content:space-between;gap:12px}.topbar-actions{display:flex;align-items:center;gap:10px;flex-wrap:wrap;justify-content:flex-end}.credits-pill{display:inline-flex;align-items:center;padding:4px 10px;border-radius:999px;background:#ecfdf5;color:#047857;font-size:.85rem;font-weight:600}.user-email{max-width:160px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--muted);font-size:.85rem}.topbar-btn{color:var(--text)}.auth-chip{border:none;background:#111827;color:#fff;border-radius:999px;padding:6px 14px;cursor:pointer;font-size:.85rem;font-weight:600}.auth-chip:hover{background:#1f2937}.auth-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;z-index:50;background:#0f172a73;display:grid;place-items:center;padding:20px}.auth-modal{width:min(420px,100%);background:#fff;border-radius:18px;padding:20px 20px 18px;box-shadow:0 20px 50px #0f172a2e}.auth-head{display:flex;align-items:center;justify-content:space-between;gap:12px}.auth-head h2{margin:0;font-size:1.2rem}.auth-close{border:none;background:transparent;font-size:1.4rem;line-height:1;cursor:pointer;color:var(--muted)}.auth-lead{margin:8px 0 16px;color:var(--muted);font-size:.9rem;line-height:1.45}.auth-form{display:flex;flex-direction:column;gap:12px}.auth-form .field{display:flex;flex-direction:column;gap:6px;font-size:.88rem}.auth-form input{border:1px solid var(--line);border-radius:12px;padding:10px 12px;outline:none}.auth-form input:focus{border-color:#86efac;box-shadow:0 0 0 3px #22c55e26}.auth-error{margin:0;color:var(--danger);font-size:.88rem}.auth-submit{border:none;border-radius:12px;background:var(--green);color:#fff;font-weight:700;padding:12px 14px;cursor:pointer}.auth-submit:disabled{opacity:.7;cursor:wait}.auth-switch{margin:14px 0 0;text-align:center;color:var(--muted);font-size:.88rem}.auth-switch button{border:none;background:none;color:#047857;cursor:pointer;font-weight:600;padding:0}.brand{display:flex;align-items:center;gap:10px}.brand-mark{width:28px;height:28px;border-radius:8px;background:linear-gradient(135deg,#34d399,#22c55e)}.brand strong{font-size:1.05rem}.generator-grid{display:grid;grid-template-columns:minmax(300px,380px) minmax(0,1fr);gap:16px;align-items:stretch}.left-col{display:flex;flex-direction:column;gap:12px;min-width:0}.card{background:var(--card);border-radius:var(--radius);box-shadow:0 1px 2px #0f172a0a;overflow:hidden}.card-head{display:flex;justify-content:space-between;align-items:center;padding:12px 14px;font-size:.92rem;font-weight:600}.muted{color:var(--muted);font-weight:500;font-size:.85rem}.cam-stage{position:relative;aspect-ratio:16 / 10;background:#111827;margin:0 12px 12px;border-radius:14px;overflow:hidden}.local-video{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;object-fit:contain;transform:scaleX(-1)}.cam-overlay{position:absolute;top:0;right:0;bottom:0;left:0;display:grid;place-items:center;padding:16px;background:#111827}.cam-picker{gap:12px;align-content:center}.cam-picker .field{width:min(100%,260px);display:flex;flex-direction:column;gap:6px;color:#d1d5db;font-size:.82rem}.cam-picker select{border:0;border-radius:10px;padding:10px 12px;background:#fff;color:var(--text)}.picker-actions{display:flex;flex-direction:column;align-items:center;gap:8px}.cam-open-btn{display:inline-flex;align-items:center;gap:8px;border:0;border-radius:999px;background:#fff;color:var(--text);padding:12px 22px;font-weight:600;cursor:pointer;box-shadow:0 8px 24px #00000040}.cam-open-btn:disabled{opacity:.55;cursor:not-allowed}.icon-cam{width:18px;height:18px;border:2px solid currentColor;border-radius:4px;position:relative}.icon-cam:after{content:"";position:absolute;right:-6px;top:3px;width:6px;height:8px;border:2px solid currentColor;border-left:0;border-radius:0 3px 3px 0}.cam-close{position:absolute;right:10px;bottom:10px;border:0;border-radius:999px;background:#ffffffeb;color:var(--text);padding:6px 12px;font-size:.8rem;cursor:pointer}.text-btn{border:0;background:transparent;color:#9ca3af;cursor:pointer}.settings-card,.ref-card{padding:14px}.row-between{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px}.label{font-size:.92rem;font-weight:600}.rate{color:var(--muted);font-size:.82rem}.mode-tabs{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-bottom:14px}.mode-tabs button{border:0;border-radius:999px;padding:10px 8px;background:#f3f4f6;color:#6b7280;cursor:pointer;font-weight:600;font-size:.9rem}.mode-tabs button.active{background:var(--purple);color:var(--purple-text)}.mode-tabs button:disabled{opacity:.55;cursor:not-allowed}.model-row{display:flex;align-items:center;gap:12px}.model-select{flex:1;border:1px solid var(--line);border-radius:12px;background:#fff;padding:10px 12px;color:var(--text)}.ref-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}.ref-cell-wrap{position:relative}.ref-cell-wrap .ref-cell{width:100%}.ref-remove{position:absolute;top:2px;left:2px;z-index:2;width:20px;height:20px;border:0;border-radius:50%;background:#0f172ab8;color:#fff;font-size:14px;line-height:1;cursor:pointer;padding:0}.ref-cell{position:relative;aspect-ratio:1;border:1px solid var(--line);border-radius:12px;overflow:hidden;padding:0;background:#f8fafc;cursor:pointer}.ref-cell img{width:100%;height:100%;object-fit:cover;display:block}.ref-cell.upload,.ref-cell.gallery{display:grid;place-items:center;color:var(--green-dark);font-size:.82rem;font-weight:600;gap:4px}.ref-cell .plus{font-size:1.6rem;line-height:1;color:var(--green);font-weight:500}.gallery-icon{width:18px;height:14px;border:2px solid var(--green);border-radius:3px;position:relative}.gallery-icon:before{content:"";position:absolute;left:2px;top:2px;width:6px;height:6px;border-radius:50%;background:var(--green)}.ref-cell.selected{outline:2px solid var(--green);outline-offset:0}.ref-cell .check{position:absolute;top:4px;right:4px;width:18px;height:18px;border-radius:50%;background:var(--green);box-shadow:0 0 0 2px #fff}.ref-cell .check:after{content:"";position:absolute;left:5px;top:3px;width:5px;height:9px;border:solid #fff;border-width:0 2px 2px 0;transform:rotate(45deg)}.output-card{display:flex;flex-direction:column;min-height:100%}.output-title{display:inline-flex;align-items:center;gap:8px}.wand{width:14px;height:14px;border-radius:2px;background:linear-gradient(135deg,#a78bfa,#22c55e)}.output-stage-wrap{position:relative;flex:1;min-height:420px;aspect-ratio:16 / 10;margin:0 12px 12px;border-radius:14px;overflow:hidden;background:#0b1220}.output-stage{position:absolute;top:0;right:0;bottom:0;left:0;background:#0b1220}.output-stage>*{width:100%!important;height:100%!important}.output-stage video,.output-stage canvas{width:100%;height:100%;object-fit:contain}.output-overlay{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;padding:20px;pointer-events:none;z-index:2;background:#0b1220}.output-overlay .start-btn{pointer-events:auto}.start-btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-width:min(420px,86%);min-height:56px;border:0;border-radius:999px;background:linear-gradient(180deg,#4ade80,#22c55e);color:#fff;font-size:1.15rem;font-weight:700;cursor:pointer;box-shadow:0 10px 28px #22c55e59}.start-btn:disabled{opacity:.45;cursor:not-allowed;box-shadow:none}.play{width:0;height:0;border-style:solid;border-width:7px 0 7px 12px;border-color:transparent transparent transparent #fff}.start-hint{margin:0;color:#ffffffc7;font-size:.88rem;text-align:center}.head-actions{display:flex;align-items:center;gap:10px}.stop-head-btn{border:0;border-radius:999px;background:#fee2e2;color:#be123c;padding:6px 12px;font-size:.82rem;font-weight:600;cursor:pointer}.stop-head-btn:disabled{opacity:.7;cursor:wait}.error{margin:12px 0 0;color:var(--danger);font-size:.9rem}@media(max-width:960px){.generator-grid{grid-template-columns:1fr}.output-stage-wrap{min-height:280px}}@media(max-width:640px){.app{padding:12px 12px 28px}.ref-grid{grid-template-columns:repeat(4,1fr)}}