带姿势和几何锁定功能的复杂 JSON 提示，用于镜像自拍场景

```json
{
  "template_id": "mirror_room_cheeky_v_bikini_synth_v1_compact",
  "version": "1.3.0",
  "intent": "正面镜子自拍场景，身着粉色俏皮 V 形比基尼的合成女性；相同的房间、椅子、狗和拍摄角度；允许替换身份。",
  "subject_identity_policy": {
    "subject_type": "synthetic_adult_female",
    "identity_replacement_allowed": true,
    "scope": "face_and_body_identity_only",
    "constraints": [
      "请勿改变姿势、比例或比基尼覆盖范围。",
      "请勿移动椅子、狗、镜子或环境。"
    ]
  },
  "pose_lock": {
    "desc": "跪坐在靠垫上，背对镜子，躯干略微旋转，头部转向手机。",
    "body_orientation": {
      "pelvis_yaw": 180,
      "pelvis_pitch": -2,
      "spine_yaw": -12,
      "spine_pitch": 8
    },
    "head": {
      "yaw": 35,
      "pitch": -4
    },
    "legs": {
      "kneeling": true,
      "knee_sep": 0.8,
      "lower_leg_deg": 15
    },
    "arms": {
      "left": {
        "elbow": 95,
        "shoulder": 22,
        "pos": {
          "x": 0.63,
          "y": 0.34
        },
        "action": "holding_phone"
      },
      "right": {
        "elbow": 40,
        "shoulder": 15,
        "pos": {
          "x": 0.52,
          "y": 0.52
        },
        "action": "resting"
      }
    },
    "back": {
      "scapula": "visible",
      "curve": "mild",
      "shoulder_h": 0.63
    },
    "hips": {
      "hip_h": 0.45,
      "center_x": 0.51,
      "pelvis_tilt": 5
    },
    "rules": [
      "保持跪姿和正对背部视角。",
      "角度冻结在 ±2 度以内。",
      "保持手机到镜子的清晰几何关系。"
    ]
  },
  "camera_lock": {
    "method": "mirror_selfie",
    "focal_mm": 26,
    "dist_m": 1.2,
    "height_m": 1.05,
    "pitch": -3,
    "lens": "mild_barrel",
    "dof": {
      "aperture": 2.2,
      "blur": "subtle"
    },
    "framing": {
      "ratio": "4:3",
      "left": "mirror_edge",
      "right": "chair_edge",
      "top": "ceiling_strip",
      "bottom": "cushion_floor"
    },
    "rules": [
      "保持相机几乎正对。",
      "请勿移动相机位置或高度。"
    ]
  },
  "bikini_geometry_lock": {
    "type": "two_piece",
    "top": {
      "style": "bandeau",
      "tie": {
        "x": 0.5,
        "y": 0.56
      },
      "tension": "moderate"
    },
    "bottom": {
      "style": "cheeky_v",
      "waist_h": 0.47,
      "side_deg": 45,
      "coverage": 0.7,
      "center": {
        "x": 0.51,
        "y": 0.61
      }
    },
    "pattern": {
      "base": "#ff6aa0",
      "acc": "#ffffff",
      "type": "floral",
      "scale": 0.18
    },
    "fabric": {
      "mat": "nylon_spandex",
      "spec": 0.35,
      "stretch": "horizontal"
    },
    "rules": [
      "保持俏皮的 V 形剪裁。",
      "请勿改变粉色或花卉图案。"
    ]
  },
  "lighting_lock": {
    "model": "indoor_daylight_mix",
    "prima
```