diff --git a/addons/game_designer/core_tab.gd b/addons/game_designer/core_tab.gd
index 890c981..5947847 100644
--- a/addons/game_designer/core_tab.gd
+++ b/addons/game_designer/core_tab.gd
@@ -18,6 +18,7 @@ var _cpu: SpinBox
 var _interval: SpinBox
 var _mana_max: SpinBox
 var _mana_regen: SpinBox
+var _mana_leech: SpinBox
 var _feat: OptionButton
 var _rows: SpinBox
 var _cols: SpinBox
@@ -43,6 +44,7 @@ func _ready() -> void:
 	_interval = _row("施法间隔(s)", UI.spin(0.05, 5, 0.05, 0.5))
 	_mana_max = _row("蓝上限(Mana Max)", UI.spin(0, 1000, 5, 100))
 	_mana_regen = _row("回蓝/秒(Mana Regen)", UI.spin(0, 100, 0.5, 5))
+	_mana_leech = _row("击杀回蓝(Mana Leech)", UI.spin(0, 100, 0.5, 0))
 	_feat = _row("特性", UI.opt(FEAT, 0))
 	_rows = _row("矩阵行(MATRIX)", UI.spin(1, 8, 1, 1))
 	_cols = _row("矩阵列(MATRIX)", UI.spin(1, 16, 1, 5))
@@ -87,6 +89,7 @@ func _on_select(idx: int) -> void:
 	_interval.value = float(d.get("cast_interval", 0.5))
 	_mana_max.value = float(d.get("mana_max", 100))
 	_mana_regen.value = float(d.get("mana_regen", 5))
+	_mana_leech.value = float(d.get("mana_leech", 0))
 	_feat.selected = int(d.get("feature_tags", 0))
 	_rows.value = float(d.get("grid_rows", 1))
 	_cols.value = float(d.get("grid_cols", 5))
@@ -106,6 +109,7 @@ func _on_apply() -> void:
 		"topology": _topo.selected, "cpu_limit": int(_cpu.value),
 		"cast_interval": _interval.value, "feature_tags": _feat.selected,
 		"mana_max": int(_mana_max.value), "mana_regen": _mana_regen.value,
+		"mana_leech": _mana_leech.value,
 		"grid_rows": int(_rows.value), "grid_cols": int(_cols.value), "edges": edges,
 	}
 	_cur = cid
@@ -118,7 +122,7 @@ func _on_new() -> void:
 	while _data.has(cid): cid = "new_core_%d" % i; i += 1
 	_data[cid] = {"display_name": cid, "slot_count": 5, "topology": 0,
 		"cpu_limit": 5, "cast_interval": 0.5, "feature_tags": 0,
-		"mana_max": 100, "mana_regen": 5, "edges": []}
+		"mana_max": 100, "mana_regen": 5, "mana_leech": 0, "edges": []}
 	_refresh()
 
 func _on_delete() -> void:
diff --git a/data/balance.json b/data/balance.json
index 66f52df..faea819 100644
--- a/data/balance.json
+++ b/data/balance.json
@@ -9,5 +9,7 @@
     "4": 450.0,
     "5": 1800.0
   },
-  "aether_thresholds": [[1, 0], [5, 3], [10, 8], [15, 14], [20, 20]]
+  "aether_thresholds": [[1, 0], [5, 3], [10, 8], [15, 14], [20, 20]],
+  "mana_heat": { "per_cast": 0.01, "decay_per_sec": 0.1, "max": 1.0 },
+  "infinite_spells": { "hp_per_shot": 1.0, "hp_cost_cap_ratio": 0.15 }
 }
diff --git a/data/cores.json b/data/cores.json
index 61b0f28..8296371 100644
--- a/data/cores.json
+++ b/data/cores.json
@@ -1,7 +1,8 @@
 {
-  "wand_basic":   { "display_name": "小木法杯", "slot_count": 5, "topology": 0, "cpu_limit": 5, "cast_interval": 0.5,  "feature_tags": 0, "mana_max": 100, "mana_regen": 5 },
-  "wand_fast":    { "display_name": "高速法杯", "slot_count": 3, "topology": 0, "cpu_limit": 3, "cast_interval": 0.25, "feature_tags": 0, "mana_max": 60,  "mana_regen": 4 },
-  "wand_memory":  { "display_name": "记忆法杖", "slot_count": 6, "topology": 0, "cpu_limit": 6, "cast_interval": 0.5,  "feature_tags": 1, "mana_max": 100, "mana_regen": 5 },
-  "matrix_board": { "display_name": "矩阵板",   "slot_count": 8, "topology": 1, "cpu_limit": 8, "cast_interval": 0.5,  "feature_tags": 0, "grid_rows": 2, "grid_cols": 4, "mana_max": 120, "mana_regen": 6 },
-  "circuit_fork": { "display_name": "分叉回路", "slot_count": 3, "topology": 2, "cpu_limit": 5, "cast_interval": 0.6,  "feature_tags": 0, "edges": [{"from": 0, "to": 1}, {"from": 0, "to": 2}], "mana_max": 100, "mana_regen": 5 }
+  "wand_basic":   { "display_name": "小木法杯", "slot_count": 5, "topology": 0, "cpu_limit": 5, "cast_interval": 0.5,  "feature_tags": 0, "mana_max": 100, "mana_regen": 8 },
+  "wand_fast":    { "display_name": "高速法杯", "slot_count": 3, "topology": 0, "cpu_limit": 3, "cast_interval": 0.25, "feature_tags": 0, "mana_max": 60,  "mana_regen": 6 },
+  "wand_memory":  { "display_name": "记忆法杖", "slot_count": 6, "topology": 0, "cpu_limit": 6, "cast_interval": 0.5,  "feature_tags": 1, "mana_max": 100, "mana_regen": 8 },
+  "matrix_board": { "display_name": "矩阵板",   "slot_count": 8, "topology": 1, "cpu_limit": 8, "cast_interval": 0.5,  "feature_tags": 0, "grid_rows": 2, "grid_cols": 4, "mana_max": 120, "mana_regen": 9 },
+  "circuit_fork": { "display_name": "分叉回路", "slot_count": 3, "topology": 2, "cpu_limit": 5, "cast_interval": 0.6,  "feature_tags": 0, "edges": [{"from": 0, "to": 1}, {"from": 0, "to": 2}], "mana_max": 100, "mana_regen": 8 },
+  "wand_eternal": { "display_name": "永恒法杖", "slot_count": 8, "topology": 0, "cpu_limit": 6, "cast_interval": 0.5, "feature_tags": 5, "mana_max": 40, "mana_regen": 4, "mana_leech": 2 }
 }
diff --git a/data/spells.json b/data/spells.json
index 0bfd217..74e24ee 100644
--- a/data/spells.json
+++ b/data/spells.json
@@ -1,5 +1,5 @@
 {
-  "action_spark_bolt":    { "type": 0, "display_name": "Spark Bolt",   "description": "发射一颗电光飞弹，造成 3 伤害。",   "element_tags": [], "meta": { "base_damage": 3.0, "speed": 350.0, "lifetime": 4.0, "radius": 6.0, "damage_type": 0, "mana_cost": 5, "shop_cost": 15 } },
+  "action_spark_bolt":    { "type": 0, "display_name": "Spark Bolt",   "description": "发射一颗电光飞弹，造成 3 伤害。",   "element_tags": [], "meta": { "base_damage": 3.0, "speed": 350.0, "lifetime": 4.0, "radius": 6.0, "damage_type": 0, "mana_cost": 3, "shop_cost": 15 } },
   "action_energy_orb":    { "type": 0, "display_name": "Energy Orb",   "description": "较慢但高伤害的能量球。",            "element_tags": [], "meta": { "base_damage": 8.0, "speed": 160.0, "lifetime": 5.0, "radius": 10.0, "damage_type": 0, "mana_cost": 20, "unlock_cost": 4, "shop_cost": 25 } },
   "action_fire_bolt":     { "type": 0, "display_name": "Fire Bolt",    "description": "火焰飞弹，命中施加燃烧。",          "element_tags": ["tag:fire"], "meta": { "base_damage": 4.0, "speed": 320.0, "lifetime": 4.0, "radius": 6.0, "damage_type": 0, "apply_status_id": 1, "mana_cost": 8, "shop_cost": 22 } },
   "action_poison_dart":   { "type": 0, "display_name": "Poison Dart",  "description": "毒镖，命中叠加中毒层数。",          "element_tags": ["tag:poison"], "meta": { "base_damage": 2.0, "speed": 400.0, "lifetime": 3.0, "radius": 5.0, "damage_type": 0, "apply_status_id": 3, "mana_cost": 6, "shop_cost": 20 } },
@@ -14,6 +14,8 @@
   "modifier_spread_mod":  { "type": 1, "display_name": "Spread",       "description": "后续法术多发一颗子弹。",            "element_tags": [], "meta": { "spread_add": 1, "mana_cost": 0, "shop_cost": 18 } },
   "modifier_double_cast": { "type": 1, "display_name": "Double Cast",  "description": "本次施法额外执行 1 个 ACTION。",     "element_tags": [], "meta": { "multicast": 1, "mana_cost": 2, "shop_cost": 25 } },
   "modifier_pierce_plus": { "type": 1, "display_name": "Pierce +2",    "description": "后续法术穿透 +2。",                "element_tags": [], "meta": { "pierce": 2, "mana_cost": 8, "shop_cost": 18 } },
+  "modifier_heavy_cost":  { "type": 1, "display_name": "Blood Sacrifice", "description": "鲜血献祭：伤害+50，但每次施法扣 10 HP。", "element_tags": [], "meta": { "damage_add": 50.0, "heavy_cost": 10, "mana_cost": 0, "shop_cost": 26 } },
+  "modifier_mana_leech":  { "type": 1, "display_name": "Mana Leech",      "description": "魔力虹吸：击杀回复 2 魔力（放入卡组即生效）。", "element_tags": [], "meta": { "mana_leech": 2, "mana_cost": 0, "shop_cost": 22 } },
   "trigger_on_hit":       { "type": 2, "display_name": "Trigger: On Hit","description": "命中时在命中点执行后续法术（子母弹）。", "element_tags": [], "meta": { "base_damage": 3.0, "speed": 250.0, "lifetime": 4.0, "radius": 6.0, "damage_type": 0, "mana_cost": 10, "shop_cost": 30 } },
   "logic_every_n_shots":  { "type": 3, "display_name": "Every 3 Shots","description": "每第 3 次施法才执行后续（需记忆法杖）。", "element_tags": [], "meta": { "logic_op": "every_n_shots", "n": 3, "reg": 0, "mana_cost": 0, "shop_cost": 24 } },
   "logic_if_hp_below":    { "type": 3, "display_name": "If HP < 50%",  "description": "仅当生命低于 50% 时执行后续。",     "element_tags": [], "meta": { "logic_op": "if_hp_below", "threshold": 0.5, "mana_cost": 0, "shop_cost": 22 } },
diff --git a/docs/design/game_design.md b/docs/design/game_design.md
index 06341c7..21806e1 100644
--- a/docs/design/game_design.md
+++ b/docs/design/game_design.md
@@ -132,7 +132,7 @@
 
 ### 4.1 核心资源：魔力 (Mana)
 
-> **⚠️ 实现现状 (2026-07-20 审计 → MVP 已实现)**：Mana 精实 MVP 已落地——`PlayerStats` 蓝池（`mana`/`mana_max`/`mana_regen`）、`CoreDefinition.base_mana_max/regen`（cores.json）、每法术 `mana_cost`（numerical §2）、`SpellEvaluator` 逐节点扣蓝 + 蓝空停施、HUD 蓝条。**暂缺**：递增蓝耗、`infinite_spells` 扣血、全局+法杖取 Min、cast_delay。详见 `docs_dev/specs/2026-07-20-mana-system-mvp-design.md`。
+> **⚠️ 实现现状 (2026-07-20 审计 → MVP 已实现)**：Mana 精实 MVP 已落地——`PlayerStats` 蓝池（`mana`/`mana_max`/`mana_regen`）、`CoreDefinition.base_mana_max/regen`（cores.json）、每法术 `mana_cost`（numerical §2）、`SpellEvaluator` 逐节点扣蓝 + 蓝空停施、HUD 蓝条。**已补全**：递增蓝耗、`infinite_spells` 扣血、魔力虹吸（多来源）、HUD 打磨。**仍暂缺**：全局+法杖取 Min、cast_delay。详见 `docs_dev/specs/2026-07-20-mana-system-mvp-design.md`。
 
 为了防止无限“加特林核弹”，限制资源是 **魔力**。
 *   强力修正器（如伤害+100）会有巨大的 **Delay (施法后摇)** 和 **Mana Cost (蓝耗)**。
diff --git a/docs/design/numerical_design.md b/docs/design/numerical_design.md
index c022806..f477e69 100644
--- a/docs/design/numerical_design.md
+++ b/docs/design/numerical_design.md
@@ -173,6 +173,7 @@ Damage = ((Base + Add) × Mult) × (1 - Res) - Armor
     *   **最小帧限制**: 设定射击间隔至少为 1 帧 (0.016s)。
     *   **过热机制 (Overheat)**: 连续射击超过 5秒，法杖进入“过热”状态，强制冷却 2秒 或 增加散布。
     *   **递增蓝耗**: 连续快速射击时，每发子弹蓝耗增加 1%，停止射击后快速衰减。
+    > **⚠️ 实现现状 (2026-07-21 → 已实现)**：递增蓝耗已落地（`PlayerStats.mana_heat`，`balance.json.mana_heat` 可调，平衡页签）；未做「最小帧限制/过热强制冷却」（用递增蓝耗替代）。
 
 ### B. 显卡杀手 (GPU Killer)
 *   **问题**: 玩家构建出 `无限分裂` + `无限粒子`。
diff --git a/scenes/main/combat_s2.gd b/scenes/main/combat_s2.gd
index 9925794..a56f58d 100644
--- a/scenes/main/combat_s2.gd
+++ b/scenes/main/combat_s2.gd
@@ -27,6 +27,7 @@ var _lbl_dps:     Label = null
 var _lbl_charge:  Label = null
 var _lbl_statuses: Label = null
 var _mana_bar: ProgressBar = null
+var _mana_lbl: Label = null
 
 var _dps_poll_timer: float = 0.0
 
@@ -243,6 +244,12 @@ func _setup_hud() -> void:
 	mana_bg.bg_color = Color(0.12, 0.12, 0.22)
 	_mana_bar.add_theme_stylebox_override("background", mana_bg)
 	_hud_layer.add_child(_mana_bar)
+	_mana_lbl = Label.new()
+	_mana_lbl.position = Vector2(200, 86)
+	_mana_lbl.size = Vector2(170, 16)
+	_mana_lbl.horizontal_alignment = HORIZONTAL_ALIGNMENT_CENTER
+	_mana_lbl.add_theme_font_size_override("font_size", 11)
+	_hud_layer.add_child(_mana_lbl)
 
 	_lbl_status = make_label.call(Vector2(20, 620), 20)
 	_lbl_status.modulate = Color.YELLOW
@@ -341,6 +348,18 @@ func _refresh_hud() -> void:
 	if _mana_bar:
 		_mana_bar.max_value = PlayerStats.mana_max
 		_mana_bar.value = PlayerStats.mana
+		var frac: float = PlayerStats.mana / maxf(1.0, PlayerStats.mana_max)
+		var fill := _mana_bar.get_theme_stylebox("fill") as StyleBoxFlat
+		if fill:
+			if frac < 0.2:
+				var a: float = 0.6 + 0.4 * absf(sin(float(Time.get_ticks_msec()) / 150.0))
+				fill.bg_color = Color(0.8, 0.2, 0.2, a)
+			else:
+				fill.bg_color = Color(0.3, 0.55, 1.0)
+		var h: float = clampf(PlayerStats.mana_heat, 0.0, 0.7)
+		_mana_bar.modulate = Color(1.0, 1.0 - h, 1.0 - h)
+	if _mana_lbl:
+		_mana_lbl.text = tr("UI_MANA") % [int(PlayerStats.mana), int(PlayerStats.mana_max)]
 
 func _refresh_shop_ui() -> void:
 	for i in _shop_btns.size():
diff --git a/scripts/autoloads/player_stats.gd b/scripts/autoloads/player_stats.gd
index abf4275..80614fc 100644
--- a/scripts/autoloads/player_stats.gd
+++ b/scripts/autoloads/player_stats.gd
@@ -26,9 +26,15 @@ var resistance:    float = 0.0  # 0.0~1.0
 var mana:       float = 100.0
 var mana_max:   float = 100.0
 var mana_regen: float = 5.0    # 每秒回复
+var mana_heat:  float = 0.0    # 递增蓝耗热值（0=无，1=蓝耗翻倍）
+var mana_leech: float = 0.0    # 击杀回蓝量（换杖/换牌重算）
 
 func _ready() -> void:
 	EventBus.subscribe(EventID.PLAYER_DAMAGED, _on_player_damaged)
+	EventBus.subscribe(EventID.ENEMY_KILLED, _on_enemy_killed)
+
+func _on_enemy_killed(_payload: Dictionary) -> void:
+	gain_mana(mana_leech)
 
 ## 升级曲线：roundf(10 × 1.4^(level-1))，P6-N16
 ## Level 1→2: 10 XP; Level 5→6: ≈ 54 XP
@@ -91,6 +97,22 @@ func regen_mana(delta: float) -> void:
 		return
 	mana = min(mana_max, mana + mana_regen * delta)
 
+## 击杀回蓝（魔力虹吸）
+func gain_mana(n: float) -> void:
+	if n <= 0.0:
+		return
+	mana = min(mana_max, mana + n)
+	stats_changed.emit()
+
+## 主动 HP 代价（infinite_spells / heavy_cost）——直接扣血，不走难度减伤
+func spend_hp_cost(amount: float) -> void:
+	if amount <= 0.0:
+		return
+	hp = max(0.0, hp - amount)
+	stats_changed.emit()
+	if hp <= 0.0:
+		EventBus.emit(EventID.PLAYER_DIED, {})
+
 func _on_player_damaged(payload: Dictionary) -> void:
 	take_damage(float(payload.get("damage", 0.0)))
 
diff --git a/scripts/autoloads/settings_manager.gd b/scripts/autoloads/settings_manager.gd
index a897ad8..6b1c587 100644
--- a/scripts/autoloads/settings_manager.gd
+++ b/scripts/autoloads/settings_manager.gd
@@ -34,6 +34,8 @@ func complete_ftue(chosen_difficulty: int) -> void:
 var _MULTS: Dictionary = {}    # key → [初学者, 标准, 挑战]
 var _BOSS_HP: Dictionary = {}  # 原型→基础血量
 var _AETHER_THRESHOLDS: Array = []   # [[到达波次, 碎片], ...] 升序
+var _MANA_HEAT: Dictionary = {"per_cast": 0.01, "decay_per_sec": 0.1, "max": 1.0}
+var _INFINITE: Dictionary = {"hp_per_shot": 1.0, "hp_cost_cap_ratio": 0.15}
 
 const BALANCE_JSON: String = "res://data/balance.json"
 
@@ -61,6 +63,12 @@ func aether_for_wave(wave: int) -> int:
 			result = maxi(result, int(entry[1]))   # 取 ≤wave 阶梯中的最大值，容忍无序表（设计师手填不必排序）
 	return result
 
+func mana_heat_per_cast() -> float:   return float(_MANA_HEAT.get("per_cast", 0.01))
+func mana_heat_decay() -> float:      return float(_MANA_HEAT.get("decay_per_sec", 0.1))
+func mana_heat_max() -> float:        return float(_MANA_HEAT.get("max", 1.0))
+func infinite_hp_per_shot() -> float: return float(_INFINITE.get("hp_per_shot", 1.0))
+func hp_cost_cap_ratio() -> float:    return float(_INFINITE.get("hp_cost_cap_ratio", 0.15))
+
 ## 数据驱动：加载 balance.json（难度乘子 + Boss 血量）
 func _load_balance() -> void:
 	if not FileAccess.file_exists(BALANCE_JSON):
@@ -77,6 +85,12 @@ func _load_balance() -> void:
 		_BOSS_HP = data["boss_hp"]
 	if data.has("aether_thresholds") and data["aether_thresholds"] is Array:
 		_AETHER_THRESHOLDS = data["aether_thresholds"]
+	if data.has("mana_heat") and data["mana_heat"] is Dictionary:
+		for k in data["mana_heat"]:
+			_MANA_HEAT[k] = data["mana_heat"][k]
+	if data.has("infinite_spells") and data["infinite_spells"] is Dictionary:
+		for k in data["infinite_spells"]:
+			_INFINITE[k] = data["infinite_spells"][k]
 
 func difficulty_name() -> String:
 	return ["DIFF_BEGINNER", "DIFF_STANDARD", "DIFF_CHALLENGE"][difficulty]
diff --git a/scripts/autoloads/wand_preset.gd b/scripts/autoloads/wand_preset.gd
index aeb12ba..29f8254 100644
--- a/scripts/autoloads/wand_preset.gd
+++ b/scripts/autoloads/wand_preset.gd
@@ -37,6 +37,7 @@ func _core_from_dict(cid: String, d: Dictionary) -> CoreDefinition:
 	c.edges         = d.get("edges", [])
 	c.base_mana_max   = float(d.get("mana_max", 100.0))
 	c.base_mana_regen = float(d.get("mana_regen", 5.0))
+	c.base_mana_leech = float(d.get("mana_leech", 0.0))
 	return c
 
 ## 默认装备（combat_test 等用）：wand_basic + 第一个 ACTION 法术
diff --git a/scripts/domain/combat/combat_manager.gd b/scripts/domain/combat/combat_manager.gd
index 4f5fced..09528b3 100644
--- a/scripts/domain/combat/combat_manager.gd
+++ b/scripts/domain/combat/combat_manager.gd
@@ -228,6 +228,8 @@ func close_shop_and_next_wave() -> void:
 	_transition_to_battle(next_wave)
 
 func _on_player_died(_payload: Dictionary) -> void:
+	if state == GameState.GAME_OVER:
+		return  # 防重入：同帧内多路死亡（子弹命中 + 卖血施法）不重复结算战绩/发以太
 	state = GameState.GAME_OVER
 	# 先采集本局战绩（reset 前），写入排行榜
 	var wave_reached: int = max(1, WaveManager.current_wave)
@@ -256,6 +258,11 @@ func _rebuild_wand() -> void:
 			continue
 		nodes.append(SpellRegistry.get_spell(sid))  # 纯数据驱动；未知 id → null（下游按位置跳过）
 	_equipped_compiled = SpellEvaluator.compile_wand(_equipped_core, nodes)
+	var leech: float = _equipped_core.base_mana_leech if _equipped_core else 0.0
+	for n in nodes:
+		if n != null:
+			leech += float(n.meta.get("mana_leech", 0.0))
+	PlayerStats.mana_leech = leech
 
 # ── 法杖存档（ProfileManager A/B 槽，ADR-A2）─────────────────
 func get_wand_save_data() -> Dictionary:
diff --git a/scripts/domain/player_manager.gd b/scripts/domain/player_manager.gd
index 4731359..b8b2339 100644
--- a/scripts/domain/player_manager.gd
+++ b/scripts/domain/player_manager.gd
@@ -29,6 +29,7 @@ func _ready() -> void:
 
 func _physics_process(delta: float) -> void:
 	PlayerStats.regen_mana(delta)
+	PlayerStats.mana_heat = maxf(0.0, PlayerStats.mana_heat - SettingsManager.mana_heat_decay() * delta)
 	_handle_movement(delta)
 	_handle_charge_state(delta)
 	_handle_auto_cast(delta)
@@ -90,6 +91,7 @@ func equip_wand(core: CoreDefinition, compiled: CompiledDeck) -> void:
 		PlayerStats.set_mana_pool(core.base_mana_max, core.base_mana_regen)
 	else:
 		PlayerStats.set_mana_pool(100.0, 5.0)
+	PlayerStats.mana_heat = 0.0
 
 func get_position() -> Vector2:
 	return _position
diff --git a/scripts/domain/spell_system/core_definition.gd b/scripts/domain/spell_system/core_definition.gd
index b360c19..1f58269 100644
--- a/scripts/domain/spell_system/core_definition.gd
+++ b/scripts/domain/spell_system/core_definition.gd
@@ -30,3 +30,4 @@ var topology:    int     = Topology.LINEAR
 ## 魔力池（MVP）——由 WandPreset 从 cores.json 读入
 @export var base_mana_max:   float = 100.0
 @export var base_mana_regen: float = 5.0    # 每秒回复
+@export var base_mana_leech: float = 0.0    # 击杀回蓝基础值（可叠加卡组内 meta.mana_leech）
diff --git a/scripts/domain/spell_system/spell_context.gd b/scripts/domain/spell_system/spell_context.gd
index 6bfe0f2..4fd599f 100644
--- a/scripts/domain/spell_system/spell_context.gd
+++ b/scripts/domain/spell_system/spell_context.gd
@@ -9,6 +9,8 @@ var stats:           CastStats        = null  # 本次施法的修改层
 ## 跨帧持久寄存器（长度固定 4，P6-N48）
 ## R1-R4：供 LOGIC_EVERY_N_SHOTS 等指令跨帧计数
 var registers:       PackedFloat32Array = PackedFloat32Array()
+var hp_cost_accum:   float = 0.0    # 本次施法累积 HP 代价（heavy_cost + infinite），施法末结算
+var mana_spent_this_cast: bool = false  # 本次施法是否真实扣过蓝（含 LOOP/CIRCUIT 子路径）→ 决定 heat 上升
 
 func _init() -> void:
 	stats = CastStats.new()
@@ -21,6 +23,8 @@ func reset() -> void:
 		stats.reset()
 	else:
 		stats = CastStats.new()
+	hp_cost_accum = 0.0
+	mana_spent_this_cast = false
 	# registers 小心：仅当 Core 没有 PERSISTENT_MEMORY Feature 时才清零
 	# 具体清空逻辑在 SpellContextPool.acquire_for_wand() 中处理
 
diff --git a/scripts/domain/spell_system/spell_evaluator.gd b/scripts/domain/spell_system/spell_evaluator.gd
index 5cc10c2..4ac3bb2 100644
--- a/scripts/domain/spell_system/spell_evaluator.gd
+++ b/scripts/domain/spell_system/spell_evaluator.gd
@@ -323,6 +323,10 @@ func execute_compiled(compiled: CompiledDeck, caster_id: int, spawn_pos: Vector2
 		return
 	var persistent: bool = compiled.feature_tags == CoreFeatureTag.PERSISTENT_MEMORY
 	var ctx: SpellContext = _acquire_ctx(caster_id, persistent)
+	ctx.hp_cost_accum = 0.0
+	ctx.mana_spent_this_cast = false
+	var infinite: bool = compiled.feature_tags == CoreFeatureTag.INFINITE_SPELLS
+	var heat_mult: float = 1.0 + PlayerStats.mana_heat
 	var deck: SpellDeck   = compiled.make_runtime_deck()
 	var ops_count:         int = 0
 	var max_ops:           int = MAX_OPS_PER_CPU * 5
@@ -331,8 +335,8 @@ func execute_compiled(compiled: CompiledDeck, caster_id: int, spawn_pos: Vector2
 		ops_count += 1
 		var node: SpellNode = deck.pop()
 		var mana_cost: float = float(node.meta.get("mana_cost", 0.0))
-		if mana_cost > 0.0 and not PlayerStats.spend_mana(mana_cost):
-			break  # 蓝不足 → 停止本次施法（此节点不执行、剩余跳过）
+		if not _charge_mana(mana_cost, ctx, infinite, heat_mult):
+			break  # 蓝不足且非 infinite → 停施
 		match node.type:
 			SpellNode.SpellType.ACTION:
 				_push_projectile(node, ctx, spawn_pos, -1)
@@ -341,7 +345,6 @@ func execute_compiled(compiled: CompiledDeck, caster_id: int, spawn_pos: Vector2
 					break
 			SpellNode.SpellType.MODIFIER:
 				_apply_modifier(node, ctx)
-				# multicast_count 已在 _apply_modifier 内更新
 				actions_remaining = 1 + ctx.stats.multicast_count
 			SpellNode.SpellType.TRIGGER:
 				_push_trigger(node, ctx, spawn_pos)
@@ -350,14 +353,17 @@ func execute_compiled(compiled: CompiledDeck, caster_id: int, spawn_pos: Vector2
 					break
 			SpellNode.SpellType.LOGIC:
 				if node.meta.has("fork_branch_ids"):
-					# CIRCUIT 分叉：各分支在施法点立即并行执行
 					for bid in node.meta["fork_branch_ids"]:
-						_run_branch_payload(int(bid), ctx, spawn_pos)
+						_run_branch_payload(int(bid), ctx, spawn_pos, infinite, heat_mult)
 				elif String(node.meta.get("logic_op", "")) == "loop":
-					ops_count = _run_logic_loop(node, ctx, spawn_pos, deck, ops_count, max_ops)
+					ops_count = _run_logic_loop(node, ctx, spawn_pos, deck, ops_count, max_ops, infinite, heat_mult)
 					break  # LOOP 已消耗剩余节点
 				elif _eval_logic(node, ctx, spawn_pos) == _LOGIC_SKIP_REST:
-					break  # 条件不成立 → 跳过后续法术
+					break
+	if ctx.hp_cost_accum > 0.0:
+		PlayerStats.spend_hp_cost(minf(ctx.hp_cost_accum, PlayerStats.hp_max * SettingsManager.hp_cost_cap_ratio()))
+	if ctx.mana_spent_this_cast:
+		PlayerStats.mana_heat = minf(SettingsManager.mana_heat_max(), PlayerStats.mana_heat + SettingsManager.mana_heat_per_cast())
 	if ops_count >= max_ops:
 		push_warning("SpellEvaluator: MAX_OPS reached (caster=%d)" % caster_id)
 	_release_ctx(ctx, persistent)
@@ -487,6 +493,19 @@ func _push_trigger(node: SpellNode, ctx: SpellContext, spawn_pos: Vector2, trigg
 		0, 0.0, cold
 	)
 
+## 统一扣蓝：base_cost>0 时按热值乘算扣蓝；infinite Core 蓝空转累加 HP 代价并继续
+## 返回 true=可执行该节点；false=蓝不足且非 infinite → 停施
+func _charge_mana(base_cost: float, ctx: SpellContext, infinite: bool, heat_mult: float) -> bool:
+	if base_cost <= 0.0:
+		return true
+	if PlayerStats.spend_mana(base_cost * heat_mult):
+		ctx.mana_spent_this_cast = true  # 真实扣蓝才记（infinite 卖血不算）→ heat 只对真实施法上升
+		return true
+	if infinite:
+		ctx.hp_cost_accum += SettingsManager.infinite_hp_per_shot()
+		return true
+	return false
+
 ## MODIFIER 分支
 func _apply_modifier(node: SpellNode, ctx: SpellContext) -> void:
 	var meta: Dictionary = node.meta
@@ -504,6 +523,8 @@ func _apply_modifier(node: SpellNode, ctx: SpellContext) -> void:
 		ctx.stats.multicast_count += int(meta["multicast"])
 	if meta.has("pierce"):
 		ctx.stats.pierce_add    += int(meta["pierce"])
+	if meta.has("heavy_cost"):
+		ctx.hp_cost_accum += float(meta["heavy_cost"])
 
 ## ── 上下文获取（区分跨帧持久 / 池化）─────────────────────────
 func _acquire_ctx(caster_id: int, persistent: bool) -> SpellContext:
@@ -553,7 +574,7 @@ func _eval_logic(node: SpellNode, ctx: SpellContext, spawn_pos: Vector2) -> int:
 ## 简化实现：LOOP 体内不再处理嵌套 LOGIC（顺延后续迭代）；尊重 ops 预算
 ## 返回更新后的 ops_count
 func _run_logic_loop(node: SpellNode, ctx: SpellContext, spawn_pos: Vector2,
-		deck: SpellDeck, ops_count: int, max_ops: int) -> int:
+		deck: SpellDeck, ops_count: int, max_ops: int, infinite: bool, heat_mult: float) -> int:
 	var count: int = clampi(int(node.meta.get("count", 2)), 1, 16)
 	var body: Array = []
 	while deck.has_next():
@@ -564,8 +585,8 @@ func _run_logic_loop(node: SpellNode, ctx: SpellContext, spawn_pos: Vector2,
 			if ops_count >= max_ops:
 				return ops_count
 			var n_cost: float = float(n.meta.get("mana_cost", 0.0))
-			if n_cost > 0.0 and not PlayerStats.spend_mana(n_cost):
-				return ops_count  # 蓝不足 → 停止整个 LOOP
+			if not _charge_mana(n_cost, ctx, infinite, heat_mult):
+				return ops_count
 			match n.type:
 				SpellNode.SpellType.ACTION:
 					_push_projectile(n, ctx, spawn_pos, -1)
@@ -579,7 +600,7 @@ func _run_logic_loop(node: SpellNode, ctx: SpellContext, spawn_pos: Vector2,
 ## ── CIRCUIT 分支执行（LOGIC_FORK 触发）──────────────────────
 ## 在施法点立即执行某分支 SubPayload 的节点；分支内 MODIFIER 作用域隔离（不泄漏给兄弟分支/主链）
 ## 嵌套 LOGIC_FORK 递归展开（P6-N66）
-func _run_branch_payload(payload_id: int, ctx: SpellContext, spawn_pos: Vector2) -> void:
+func _run_branch_payload(payload_id: int, ctx: SpellContext, spawn_pos: Vector2, infinite: bool, heat_mult: float) -> void:
 	var nodes: Array = SubPayloadRegistry.get_nodes(payload_id)
 	if nodes.is_empty():
 		return
@@ -595,8 +616,8 @@ func _run_branch_payload(payload_id: int, ctx: SpellContext, spawn_pos: Vector2)
 	var b_crit: float = s.crit_chance
 	for node in nodes:
 		var node_cost: float = float(node.meta.get("mana_cost", 0.0))
-		if node_cost > 0.0 and not PlayerStats.spend_mana(node_cost):
-			break  # 蓝不足 → 停止本分支
+		if not _charge_mana(node_cost, ctx, infinite, heat_mult):
+			break
 		match node.type:
 			SpellNode.SpellType.ACTION:
 				_push_projectile(node, ctx, spawn_pos, -1)
@@ -607,7 +628,7 @@ func _run_branch_payload(payload_id: int, ctx: SpellContext, spawn_pos: Vector2)
 			SpellNode.SpellType.LOGIC:
 				if node.meta.has("fork_branch_ids"):
 					for bid in node.meta["fork_branch_ids"]:
-						_run_branch_payload(int(bid), ctx, spawn_pos)
+						_run_branch_payload(int(bid), ctx, spawn_pos, infinite, heat_mult)
 				elif _eval_logic(node, ctx, spawn_pos) == _LOGIC_SKIP_REST:
 					break
 	# 还原 stats
diff --git a/translations/en.po b/translations/en.po
index 96903a0..096bf06 100644
--- a/translations/en.po
+++ b/translations/en.po
@@ -212,3 +212,6 @@ msgstr "Unlocked"
 
 msgid "META_CLOSE"
 msgstr "Close"
+
+msgid "UI_MANA"
+msgstr "MP %d/%d"
diff --git a/translations/ja.po b/translations/ja.po
index 587531b..6e85c02 100644
--- a/translations/ja.po
+++ b/translations/ja.po
@@ -212,3 +212,6 @@ msgstr "解放済み"
 
 msgid "META_CLOSE"
 msgstr "閉じる"
+
+msgid "UI_MANA"
+msgstr "MP %d/%d"
diff --git a/translations/zh_CN.po b/translations/zh_CN.po
index 437044e..56d23ad 100644
--- a/translations/zh_CN.po
+++ b/translations/zh_CN.po
@@ -212,3 +212,6 @@ msgstr "已解锁"
 
 msgid "META_CLOSE"
 msgstr "关闭"
+
+msgid "UI_MANA"
+msgstr "蓝 %d/%d"
diff --git a/translations/zh_TW.po b/translations/zh_TW.po
index 4fc394a..68bc4ae 100644
--- a/translations/zh_TW.po
+++ b/translations/zh_TW.po
@@ -212,3 +212,6 @@ msgstr "已解鎖"
 
 msgid "META_CLOSE"
 msgstr "關閉"
+
+msgid "UI_MANA"
+msgstr "藍 %d/%d"