Cap options budget-full sizing at min(balance, trade budget) with UI hint.

Co-authored-by: Cursor <cursoragent@cursor.com>

crypto_monitor_binance/app.py

@@ -411,7 +411,7 @@ _APP_STARTED_AT = time.time()
 _RECONCILE_FLAT_STREAK = {}
 KLINE_TIMEFRAME = os.getenv("KLINE_TIMEFRAME", "5m")
 FULL_MARGIN_BUFFER_RATIO = float(os.getenv("FULL_MARGIN_BUFFER_RATIO", "0.98"))
-TRANSFER_CCY = os.getenv("TRANSFER_CCY", "USDT")
+TRANSFER_CCY = (os.getenv("TRANSFER_CCY", "USDT") or "USDT").strip().upper() or "USDT"
 UPLOAD_FOLDER = resolve_path(os.getenv("UPLOAD_DIR", "static/images"))
 ORDER_CHART_ENABLED = os.getenv("ORDER_CHART_ENABLED", "true").lower() == "true"
 ORDER_CHART_TFS = [x.strip() for x in (os.getenv("ORDER_CHART_TFS", "4h,1h,15m,5m") or "").split(",") if x.strip()]
@@ -9870,7 +9870,7 @@ def manual_transfer():
         amount = float(request.form.get("amount", "0"))
     except Exception:
         flash("划转金额格式错误")
-        return redirect("/settings")
+        return redirect("/settings?settings_tab=transfer")
     from_account = (request.form.get("from_account") or AUTO_TRANSFER_FROM).strip()
     to_account = (request.form.get("to_account") or AUTO_TRANSFER_TO).strip()
     ok, msg, _ = execute_transfer_usdt(amount, from_account, to_account)
@@ -9885,7 +9885,7 @@ def manual_transfer():
         flash(f"手动划转成功:{amount}U {from_account}->{to_account}")
     else:
         flash(f"手动划转失败:{msg}")
-    return redirect("/settings")
+    return redirect("/settings?settings_tab=transfer")
 
 
 def _journal_ai_chart_builder(row):

crypto_monitor_gate/app.py

@@ -404,7 +404,7 @@ KLINE_TIMEFRAME = os.getenv("KLINE_TIMEFRAME", "5m")
 _APP_STARTED_AT = time.time()
 _RECONCILE_FLAT_STREAK = {}
 FULL_MARGIN_BUFFER_RATIO = float(os.getenv("FULL_MARGIN_BUFFER_RATIO", "0.98"))
-TRANSFER_CCY = os.getenv("TRANSFER_CCY", "USDT")
+TRANSFER_CCY = (os.getenv("TRANSFER_CCY", "USDT") or "USDT").strip().upper() or "USDT"
 UPLOAD_FOLDER = resolve_path(os.getenv("UPLOAD_DIR", "static/images"))
 ORDER_CHART_ENABLED = os.getenv("ORDER_CHART_ENABLED", "true").lower() == "true"
 ORDER_CHART_TFS = [x.strip() for x in (os.getenv("ORDER_CHART_TFS", "4h,1h,15m,5m") or "").split(",") if x.strip()]
@@ -9727,7 +9727,7 @@ def manual_transfer():
         amount = float(request.form.get("amount", "0"))
     except Exception:
         flash("划转金额格式错误")
-        return redirect("/settings")
+        return redirect("/settings?settings_tab=transfer")
     from_account = (request.form.get("from_account") or AUTO_TRANSFER_FROM).strip()
     to_account = (request.form.get("to_account") or AUTO_TRANSFER_TO).strip()
     ok, msg, _ = execute_transfer_usdt(amount, from_account, to_account)
@@ -9742,7 +9742,7 @@ def manual_transfer():
         flash(f"手动划转成功:{amount}U {from_account}->{to_account}")
     else:
         flash(f"手动划转失败:{msg}")
-    return redirect("/settings")
+    return redirect("/settings?settings_tab=transfer")
 
 
 def _journal_ai_chart_builder(row):

crypto_monitor_okx/app.py

@@ -384,7 +384,7 @@ BREAKEVEN_EXCHANGE_MIN_INTERVAL_SEC = max(
 _BREAKEVEN_LAST_EX_SYNC: dict[int, float] = {}
 KLINE_TIMEFRAME = os.getenv("KLINE_TIMEFRAME", "5m")
 FULL_MARGIN_BUFFER_RATIO = float(os.getenv("FULL_MARGIN_BUFFER_RATIO", "0.98"))
-TRANSFER_CCY = os.getenv("TRANSFER_CCY", "USDT")
+TRANSFER_CCY = (os.getenv("TRANSFER_CCY", "USDT") or "USDT").strip().upper() or "USDT"
 OKX_POSITION_INST_TYPE = os.getenv("OKX_POSITION_INST_TYPE", "SWAP")
 EXCHANGE_POSITION_SYNC_FROM_BJ = (os.getenv("EXCHANGE_POSITION_SYNC_FROM_BJ") or "").strip()
 EXCHANGE_POSITION_HISTORY_LIMIT = max(50, min(1000, int(os.getenv("EXCHANGE_POSITION_HISTORY_LIMIT", "200"))))
@@ -9455,7 +9455,7 @@ def manual_transfer():
         amount = float(request.form.get("amount", "0"))
     except Exception:
         flash("划转金额格式错误")
-        return redirect("/settings")
+        return redirect("/settings?settings_tab=transfer")
     from_account = (request.form.get("from_account") or AUTO_TRANSFER_FROM).strip()
     to_account = (request.form.get("to_account") or AUTO_TRANSFER_TO).strip()
     ok, msg, _ = execute_transfer_usdt(amount, from_account, to_account)
@@ -9477,7 +9477,7 @@ def manual_transfer():
         flash(f"手动划转成功:{amount}U {from_account}->{to_account}")
     else:
         flash(f"手动划转失败:{msg}")
-    return redirect("/settings")
+    return redirect("/settings?settings_tab=transfer")
 
 
 def _journal_ai_chart_builder(row):

docs/快照备份.md

@@ -6,6 +6,7 @@
 
 | 标签 | 指向提交 | 说明 |
 |------|----------|------|
+| `snapshot/20260724` | `890659f` | 2026-07-24：执行手册v2(无对冲)、监控/策略页签显隐、内照明心期权档案同步、期权开平仓微信必发、实例导航显隐关键位/实盘下单等 |
 | `snapshot/20260723-2` | `9e0591c` | 2026-07-23：策略对比页（合约/单期权/期期7:3）、监控与看板隐藏浮盈偏好、对比页卡片内边距等 |
 | `snapshot/20260723-pre-amp-stats` | `40be3a5` | 2026-07-23：振幅统计开发前；含执行手册进教练、日亏损冻结、手机监控 UI、振幅统计开发方案等 |
 | `snapshot/20260721-2` | `a721642` | 2026-07-21 晚：日亏损次数冻结、交易执行手册入中控策略说明、期权/Gate 执行手册文档等 |
@@ -28,7 +29,7 @@
 git tag -l 'snapshot/*'
 
 # 检出快照（只读查看，勿在此分支直接开发）
-git checkout snapshot/20260723-2
+git checkout snapshot/20260724
 
 # 回到主线
 git checkout main

lib/common/static/instance_embed.js

@@ -235,9 +235,57 @@
     const parts = [];
     if (qs) parts.push(qs);
     parts.push("embed=1");
+    if (tab === "settings") {
+      try {
+        const st = new URLSearchParams(location.search).get("settings_tab");
+        if (st) parts.push("settings_tab=" + encodeURIComponent(st));
+      } catch (_) {}
+    }
     return url + "?" + parts.join("&");
   }
 
+  function setSettingsSubTabInUrl(key) {
+    if (!key) return;
+    try {
+      const q = new URLSearchParams(location.search);
+      q.set("tab", "settings");
+      q.set("settings_tab", key);
+      q.set("embed", "1");
+      history.replaceState(null, "", "/embed?" + q.toString());
+    } catch (_) {}
+  }
+
+  function activateSettingsSubTab(key) {
+    if (!key) return;
+    setSettingsSubTabInUrl(key);
+    const pane = tabPanes.get("settings") || document;
+    const radio = pane.querySelector(
+      'input.env-tab-radio[data-settings-tab="' + key + '"]'
+    );
+    if (radio) radio.checked = true;
+  }
+
+  function formActionPath(form) {
+    try {
+      return new URL(form.action || "", location.href).pathname.replace(/\/$/, "") || "/";
+    } catch (_) {
+      return "";
+    }
+  }
+
+  function maybeKeepSettingsSubTabAfterForm(form) {
+    const path = formActionPath(form);
+    if (path === "/manual_transfer") {
+      setSettingsSubTabInUrl("transfer");
+      return "transfer";
+    }
+    if (path.indexOf("/api/options/transfer") >= 0 || path.indexOf("/api/options/cross-transfer") >= 0) {
+      setSettingsSubTabInUrl("options_transfer");
+      return "options_transfer";
+    }
+    return "";
+  }
+
   async function fetchTabHtml(tab) {
     const r = await fetch(embedPageUrl(tab), {
       credentials: "same-origin",
@@ -400,14 +448,15 @@
       }
     }
     const fd = new FormData(form);
+    const keepSub = maybeKeepSettingsSubTabAfterForm(form);
     return fetch(form.action, {
       method: form.method || "POST",
       body: fd,
       credentials: "same-origin",
       redirect: "manual",
     })
-      .then(() => reloadCurrentTab())
-      .catch(() => reloadCurrentTab());
+      .then(() => reloadCurrentTab().then(() => activateSettingsSubTab(keepSub)))
+      .catch(() => reloadCurrentTab().then(() => activateSettingsSubTab(keepSub)));
   }
 
   function patchApplyListWindow() {
@@ -466,14 +515,15 @@
         if (CUSTOM_SUBMIT_FORM_IDS.has(form.id)) return;
         ev.preventDefault();
         const fd = new FormData(form);
+        const keepSub = maybeKeepSettingsSubTabAfterForm(form);
         fetch(form.action, {
           method: form.method || "POST",
           body: fd,
           credentials: "same-origin",
           redirect: "manual",
         })
-          .then(() => reloadCurrentTab())
-          .catch(() => reloadCurrentTab());
+          .then(() => reloadCurrentTab().then(() => activateSettingsSubTab(keepSub)))
+          .catch(() => reloadCurrentTab().then(() => activateSettingsSubTab(keepSub)));
       },
       true
     );

lib/common/static/options_panel.js

@@ -280,8 +280,15 @@
     const mode = currentSizeMode();
     const sheetsEl = document.getElementById("opt-sheets-amount");
     const ethEl = document.getElementById("opt-eth-amount");
+    const hint = document.getElementById("opt-budget-full-hint");
+    const capEl = document.getElementById("opt-budget-full-cap");
     if (sheetsEl) sheetsEl.style.display = mode === "sheets" ? "" : "none";
     if (ethEl) ethEl.style.display = mode === "eth_amount" ? "" : "none";
+    if (hint) hint.style.display = mode === "budget_full" ? "" : "none";
+    if (capEl && root && root.dataset.tradeBudget) {
+      const n = Number(root.dataset.tradeBudget);
+      if (Number.isFinite(n) && n > 0) capEl.textContent = n.toFixed(2);
+    }
     document.querySelectorAll(".opt-size-mode-chip").forEach(function (chip) {
       const radio = chip.querySelector('input[name="opt-size-mode"]');
       chip.classList.toggle("is-selected", !!(radio && radio.checked));

lib/env/env_schema.py

@@ -70,7 +70,10 @@ HOT_RELOAD_EXACT = frozenset({
     "MONITOR_POLL_SECONDS",
     "AUTO_TRANSFER_ENABLED",
     "AUTO_TRANSFER_AMOUNT",
+    "AUTO_TRANSFER_FROM",
+    "AUTO_TRANSFER_TO",
     "AUTO_TRANSFER_BJ_HOUR",
+    "TRANSFER_CCY",
     "FORCE_CLOSE_ENABLED",
     "FORCE_CLOSE_BJ_HOUR",
     "BTC_LEVERAGE",
@@ -126,6 +129,17 @@ SELECT_OPTIONS: dict[str, tuple[tuple[str, str], ...]] = {
         ("long_only", "仅做多"),
         ("short_only", "仅做空"),
     ),
+    "AUTO_TRANSFER_FROM": (
+        ("funding", "funding 资金账户"),
+        ("swap", "swap 交易账户"),
+        ("spot", "spot 现货"),
+    ),
+    "AUTO_TRANSFER_TO": (
+        ("swap", "swap 交易账户"),
+        ("funding", "funding 资金账户"),
+        ("spot", "spot 现货"),
+    ),
+    "TRANSFER_CCY": (("USDT", "USDT"),),
     "HEDGE_PLAN_OO_BIAS_SPLIT_BY": (
         ("budget", "预算金额"),
         ("sheets", "张数"),
@@ -136,6 +150,7 @@ _SELECT_ALIASES: dict[str, dict[str, str]] = {
     "OKX_TD_MODE": {"cross_margin": "cross", "isolated_margin": "isolated"},
     "BINANCE_MARGIN_MODE": {"cross_margin": "cross", "isolated_margin": "isolated"},
     "GATE_TD_MODE": {"cross_margin": "cross", "isolated_margin": "isolated"},
+    "TRANSFER_CCY": {"usdt": "USDT"},
 }
 
 
@@ -159,10 +174,13 @@ def normalize_select_value(key: str, value: Optional[str]) -> str:
     if low in aliases:
         return aliases[low]
     allowed = {v for v, _ in (SELECT_OPTIONS.get(key) or ())}
+    allowed_by_lower = {v.lower(): v for v in allowed}
     if low in allowed:
         return low
     if raw in allowed:
         return raw
+    if low in allowed_by_lower:
+        return allowed_by_lower[low]
     return raw
 
 

lib/env/env_ui_manifest.py

@@ -103,10 +103,10 @@ _SHARED_SECTIONS: list[dict[str, Any]] = [
         "fields": [
             ("AUTO_TRANSFER_ENABLED", "启用自动划转", ""),
             ("AUTO_TRANSFER_AMOUNT", "目标余额(U)", "交易账户目标 USDT"),
-            ("AUTO_TRANSFER_FROM", "划出账户", "funding 或 swap"),
-            ("AUTO_TRANSFER_TO", "划入账户", "swap 或 funding"),
+            ("AUTO_TRANSFER_FROM", "划出账户", "余额不足时从此账户划入交易账户"),
+            ("AUTO_TRANSFER_TO", "划入账户", "目标余额所在账户,一般为 swap"),
             ("AUTO_TRANSFER_BJ_HOUR", "执行整点(北京时间)", ""),
-            ("TRANSFER_CCY", "划转币种", "默认 USDT"),
+            ("TRANSFER_CCY", "划转币种", ""),
         ],
     },
     {
@@ -200,6 +200,9 @@ _RUNTIME_ENV_DEFAULTS: dict[str, str] = {
     "RISK_MANUAL_CLOSE_DAILY_LIMIT": "2",
     "RISK_DAILY_LOSS_LIMIT": "2",
     "RISK_MOOD_ISSUES_DAILY_FREEZE": "true",
+    "AUTO_TRANSFER_FROM": "funding",
+    "AUTO_TRANSFER_TO": "swap",
+    "TRANSFER_CCY": "USDT",
     "HEDGE_PLAN_SHOW_PERP_OPTIONS": "true",
     "HEDGE_PLAN_SHOW_OPTIONS_OPTIONS": "true",
     "OKX_OPTIONS_CHAIN_ASK_LIQ_FILTER_ENABLED": "true",
@@ -214,7 +217,9 @@ _RUNTIME_ENV_DEFAULTS: dict[str, str] = {
 
 def _effective_env_value(key: str, file_values: dict[str, str], schema_default: str = "") -> str:
     if key in file_values:
-        return file_values[key]
+        file_val = str(file_values.get(key) or "").strip()
+        if file_val:
+            return file_val
     runtime = os.getenv(key)
     if runtime is not None and str(runtime).strip() != "":
         return str(runtime).strip()

lib/exchange/gate_transfer_lib.py

@@ -22,6 +22,7 @@ def execute_transfer_usdt(
 ) -> tuple[bool, str, Any]:
     if amount <= 0:
         return False, "划转金额必须大于0", None
+    ccy = (transfer_ccy or "USDT").strip().upper() or "USDT"
     ok_live, reason = ensure_live_ready()
     if not ok_live:
         return False, reason, None
@@ -31,7 +32,7 @@ def execute_transfer_usdt(
         except Exception:
             pass
     try:
-        resp = exchange.transfer(transfer_ccy, float(amount), from_account, to_account)
+        resp = exchange.transfer(ccy, float(amount), from_account, to_account)
         return True, "划转成功", resp
     except Exception as e:
         msg = str(e)

lib/instance/instance_embed_lib.py

@@ -84,6 +84,11 @@ def embed_shell_enabled() -> bool:
     return (os.getenv("HUB_EMBED_SHELL") or "1").strip().lower() in ("1", "true", "yes", "on")
 
 
+_SETTINGS_SUB_TABS = frozenset(
+    {"nav", "password", "transfer", "export", "options_swap", "options_transfer"}
+)
+
+
 def redirect_to_embed_shell_if_enabled(page: str):
     """直连 /trade 等整页路由时,重定向到 embed 壳(顶栏常驻,tab 软切换)."""
     if not embed_shell_enabled():
@@ -93,6 +98,12 @@ def redirect_to_embed_shell_if_enabled(page: str):
     if (request.path or "").rstrip("/") == "/embed":
         return None
     q = {k: v for k, v in request.args.items()}
+    # embed 的 tab=页面名;系统设置内页签用 settings_tab,避免 /settings?tab=transfer 被覆盖成 tab=settings
+    if (page or "").strip() == "settings":
+        sub = (q.get("settings_tab") or "").strip()
+        legacy = (q.get("tab") or "").strip()
+        if not sub and legacy in _SETTINGS_SUB_TABS:
+            q["settings_tab"] = legacy
     q["tab"] = page
     q["embed"] = "1"
     return redirect("/embed?" + urlencode(q))
@@ -115,6 +126,11 @@ def rewrite_embed_dest(path: str, hub_theme: str | None = None) -> str:
     tab = path_to_embed_tab(split.path)
     q = dict(parse_qsl(split.query, keep_blank_values=True))
     if tab:
+        if tab == "settings":
+            sub = (q.get("settings_tab") or "").strip()
+            legacy = (q.get("tab") or "").strip()
+            if not sub and legacy in _SETTINGS_SUB_TABS:
+                q["settings_tab"] = legacy
         q["tab"] = tab
         q["embed"] = "1"
         ht = (hub_theme or q.get("hub_theme") or "").strip().lower()

lib/instance/templates/embed_shell.html

@@ -120,6 +120,6 @@ window.__INSTANCE_DISPLAY__ = {{ display | tojson }};
 </script>
 <script src="/static/instance_settings_prefs.js?v=15"></script>
 <script src="/static/instance_live.js?v=6"></script>
-<script src="/static/instance_embed.js?v=27"></script>
+<script src="/static/instance_embed.js?v=28"></script>
 </body>
 </html>

lib/instance/templates/settings_panel.html

@@ -6,9 +6,21 @@
     </div>
 
     {% if settings_tabs %}
-    <div class="env-config-body card settings-config-body">
+    {% set _sub = (request.args.get('settings_tab') or '').strip() %}
+    {% set _legacy_tab = (request.args.get('tab') or '').strip() %}
+    {% set ns = namespace(active_idx=0, active_key='') %}
+    {% for tab in settings_tabs %}
+        {% if _sub and tab.key == _sub %}
+            {% set ns.active_idx = loop.index0 %}
+            {% set ns.active_key = tab.key %}
+        {% elif (not _sub) and _legacy_tab and tab.key == _legacy_tab %}
+            {% set ns.active_idx = loop.index0 %}
+            {% set ns.active_key = tab.key %}
+        {% endif %}
+    {% endfor %}
+    <div class="env-config-body card settings-config-body" data-settings-active-tab="{{ ns.active_key }}">
         {% for tab in settings_tabs %}
-        <input type="radio" name="settings-section" id="settings-sec-{{ loop.index0 }}" class="env-tab-radio"{% if loop.first %} checked{% endif %}>
+        <input type="radio" name="settings-section" id="settings-sec-{{ loop.index0 }}" class="env-tab-radio" data-settings-tab="{{ tab.key }}"{% if loop.index0 == ns.active_idx %} checked{% endif %}>
         {% endfor %}
         <div class="env-config-tabs" role="tablist" aria-label="系统设置分类">
             {% for tab in settings_tabs %}
@@ -52,3 +64,14 @@
     {% include 'options_settings_panel.html' %}
     {% endif %}
 </div>
+<script>
+(function () {
+  try {
+    var q = new URLSearchParams(window.location.search || "");
+    var key = (q.get("settings_tab") || "").trim();
+    if (!key) return;
+    var radio = document.querySelector('input.env-tab-radio[data-settings-tab="' + key + '"]');
+    if (radio) radio.checked = true;
+  } catch (e) {}
+})();
+</script>

lib/options/options_pricing_lib.py

@@ -259,6 +259,11 @@ def eth_amount_from_sheets(sheets: int, ct_mult: float = 0.01) -> float:
     return round(int(sheets) * float(ct_mult), 8)
 
 
+def resolve_budget_full_usdc(trading_usdc: float, trade_budget_usdc: float) -> float:
+    """按可用余额打满:余额大于预算用预算,否则用余额."""
+    return min(float(trading_usdc), float(trade_budget_usdc))
+
+
 def calc_order_size(
     *,
     quote_per_unit: float,

lib/options/options_register.py

@@ -163,13 +163,18 @@ def _require_options_ex(cfg: dict[str, Any]):
 
 
 def _budget_full_usdc(cfg: dict[str, Any], ex: Any) -> tuple[float | None, str]:
-    """交易账户 USDC 可用余额(由 calc_order_size 再乘 budget_buffer 留余量)."""
+    """打满可用额度 = min(交易户可用 USDC, 单笔预算);calc_order_size 再乘 budget_buffer."""
     from lib.exchange.okx_options_lib import fetch_options_trading_usdc
+    from lib.options.options_pricing_lib import resolve_budget_full_usdc
 
     raw = fetch_options_trading_usdc(ex)
     if raw is None or float(raw) <= 0:
         return None, "交易账户 USDC 可用余额不足"
-    return float(raw), ""
+    trading = float(raw)
+    cap = _env_float("OKX_OPTIONS_TRADE_BUDGET_USDC", float(cfg.get("trade_budget") or 10.0))
+    if cap <= 0:
+        return None, "单笔预算无效(OKX_OPTIONS_TRADE_BUDGET_USDC)"
+    return resolve_budget_full_usdc(trading, float(cap)), ""
 
 
 def _open_premium_paid(cfg: dict[str, Any], inst_id: str) -> float | None:

lib/options/templates/options_panel.html

@@ -1,6 +1,7 @@
 <div class="options-page-wrap" style="grid-column:1/-1" id="options-root"
      data-default-underly="{{ options_default_underly | default('ETH') }}"
      data-budget-buffer="{{ options_budget_buffer | default(0.95) }}"
+     data-trade-budget="{{ options_trade_budget | default(10) }}"
      data-ask-liq-filter="{% if options_chain_ask_liq_filter is defined %}{{ '1' if options_chain_ask_liq_filter else '0' }}{% else %}1{% endif %}">
     {% if not options_enabled %}
     <div class="flash" style="margin-bottom:12px">期权 API 未启用:请在 <code>crypto_monitor_okx/.env</code> 设置 <code>OKX_OPTIONS_ENABLED=true</code> 及主账户 <code>OKX_OPTIONS_API_*</code>,然后 <code>pm2 restart crypto_okx --update-env</code>.</div>
@@ -18,7 +19,7 @@
                         <li>环境配置「链上仅显示有卖一」开启时,隐藏无真实卖一或深度不足 1 张的合约(估算价 <strong>~</strong> 亦不显示)。</li>
                         <li><strong>开仓只认真实卖一价且卖一深度≥1</strong>;无深度时面板显示参考标记价并禁用买入。</li>
                         <li>链展示近 <span id="opt-chain-dte">14</span> 日到期;<strong>T 型</strong>默认 ATM ±5 档,可展开全部。</li>
-                        <li>「按可用余额打满」可用额度 = min(交易 USDC × 预算缓冲 <strong id="opt-budget-buf">{{ '%.2f'|format(options_budget_buffer|default(0.95)|float) }}</strong>, 单笔预算);可在 env「预算缓冲比例」改。</li>
+                        <li>「按可用余额打满」可用额度 = min(交易户可用 USDC, 单笔预算 <strong id="opt-trade-budget">{{ '%.2f'|format(options_trade_budget|default(10)|float) }}</strong>),再 × 预算缓冲 <strong id="opt-budget-buf">{{ '%.2f'|format(options_budget_buffer|default(0.95)|float) }}</strong> 算张数(env 可改)。</li>
                         <li>平仓仅买一限价,详见说明文档。</li>
                     </ul>
                     <p><a href="/options/guide" target="_blank" rel="noopener">打开《期权开平仓与监控说明》</a></p>
@@ -133,6 +134,9 @@
                                     <input type="number" id="opt-eth-amount" min="0.01" step="0.01" placeholder="如 0.5" style="display:none"
                                            autocomplete="off" inputmode="decimal" data-lpignore="true" data-1p-ignore="true" data-form-type="other">
                                 </div>
+                                <p class="muted opt-budget-full-hint" id="opt-budget-full-hint" style="display:none;margin:6px 0 0;font-size:.82rem;line-height:1.4">
+                                    余额 &gt; 单笔预算(<span id="opt-budget-full-cap">{{ '%.2f'|format(options_trade_budget|default(10)|float) }}</span>U)时按预算;余额不足时按余额;再乘预算缓冲算张数。
+                                </p>
                                 <input type="text" id="opt-signal-note" name="opt_signal_note" class="opt-signal-note" placeholder="备注(关键位说明)"
                                        autocomplete="off" autocorrect="off" autocapitalize="off" spellcheck="false"
                                        data-lpignore="true" data-1p-ignore="true" data-form-type="other" readonly>
@@ -316,4 +320,4 @@
     </div>
 </div>
 <script src="/static/options_expiry_countdown.js?v=1"></script>
-<script src="/static/options_panel.js?v=49"></script>
+<script src="/static/options_panel.js?v=50"></script>

tests/test_options_budget_full.py

@@ -0,0 +1,16 @@
+"""按可用余额打满:min(余额, 单笔预算)."""
+from __future__ import annotations
+
+from lib.options.options_pricing_lib import resolve_budget_full_usdc
+
+
+def test_balance_above_budget_uses_budget():
+    assert resolve_budget_full_usdc(100.0, 10.0) == 10.0
+
+
+def test_balance_below_budget_uses_balance():
+    assert resolve_budget_full_usdc(5.0, 10.0) == 5.0
+
+
+def test_balance_equals_budget():
+    assert resolve_budget_full_usdc(10.0, 10.0) == 10.0