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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_AmendmentFlag_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Amendment Flag</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Balance (in Shares)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Balance (in Shares)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Shares outstanding (in Shares)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Shares, Outstanding</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RelatedPartyMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Related Party</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RelatedPartyMember_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Related Party [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RelatedPartyMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Related Party [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Related and Nonrelated Parties [Axis]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RetainedEarningsAccumulatedDeficit_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accumulated deficit</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RetainedEarningsAccumulatedDeficit_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Retained Earnings (Accumulated Deficit)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubsequentEventsTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Subsequent Events</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubsequentEventsTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Subsequent Events [Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquityNoteDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Shareholders&#8217; Deficit</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquityNoteDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity [Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Cash, beginning of the period</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Cash, end of the period</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net change in cash</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Excluding Exchange Rate Effect, Including Discontinued Operation</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueDisclosuresAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value Measurements [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SegmentReportingDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Segment Information</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SegmentReportingDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Segment Reporting Disclosure [Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInDueToRelatedPartiesCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Due to related party</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInDueToRelatedPartiesCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase (Decrease) in Due to Related Parties, Current</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInPrepaidExpense_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Prepaid expenses</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInPrepaidExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase (Decrease) in Prepaid Expense</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentIncomeInterest_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Interest earned on cash held in Trust Account</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentIncomeInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Interest earned on cash held in Trust Account</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentIncomeInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Income, Interest</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueAdjustmentOfWarrants_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Change in fair value of warrant liabilities</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueAdjustmentOfWarrants_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Change in fair value of warrant liabilities</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueAdjustmentOfWarrants_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value Adjustment of Warrants</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_ScheduleOfClassAOrdinarySharesSubjectToPossibleRedemptionReflectedAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Class A Ordinary Shares Subject to Possible Redemption Reflected [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DepositsMoneyMarketDeposits_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Deposits, Money Market Deposits</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_CashWithdrawnFromTrustAccountInConnectionWithRedemption_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash withdrawn from Trust Account in connection with redemption</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_CashWithdrawnFromTrustAccountInConnectionWithRedemption_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Held in trust account (in Dollars)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_CashWithdrawnFromTrustAccountInConnectionWithRedemption_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash Withdrawn From Trust Account In Connection With Redemption</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_CashWithdrawnFromTrustAccountInConnectionWithRedemption_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Cash withdrawn from Trust Account in connection with redemption.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Adjustments to reconcile net loss to net cash used in operating activities:</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherShortTermBorrowings_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Company drew</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherShortTermBorrowings_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Short-Term Borrowings</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubsequentEventLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Subsequent Event [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubsequentEventMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Subsequent Event [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubsequentEventsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Subsequent Events [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubsequentEventTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Subsequent Event [Table]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubsequentEventTypeAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Subsequent Event Type [Axis]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EquityAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Shareholders&#8217; Deficit [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_InitialPublicOfferingTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Initial Public Offering</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_InitialPublicOfferingTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Initial Public Offering Text Block</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_InitialPublicOfferingTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">The entire disclosure of initial public offering.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WarrantsAndRightsNoteDisclosureAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Private Placement [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RelatedPartyTransactionsDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Related Party Transactions</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RelatedPartyTransactionsDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Related Party Transactions Disclosure [Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommitmentsAndContingenciesDisclosureAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Commitments and Contingencies [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivities_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net cash provided (used in) financing activities</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash Provided by (Used in) Financing Activity, Including Discontinued Operation</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash Flows from Financing Activities:</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueDisclosuresTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair Value Measurements</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueDisclosuresTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value Disclosures [Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SegmentReportingAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Segment Information [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivities_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net cash provided by investing activities</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash Provided by (Used in) Investing Activity, Including Discontinued Operation</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash Flows from Investing Activities:</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash Provided by (Used in) Investing Activity, Including Discontinued Operation [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivities_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net cash used in operating activities</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash Provided by (Used in) Operating Activity, Including Discontinued Operation</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_CashHeldInTrustAccountPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash Held in Trust Account</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_CashHeldInTrustAccountPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash Held In Trust Account Policy Text Block</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_CashHeldInTrustAccountPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Disclosure of accounting policy for cash held in trust account.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_ConvertiblePromissoryNotePolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Convertible Promissory Note</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_ConvertiblePromissoryNotePolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Convertible Promissory Note Policy Text Block</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_ConvertiblePromissoryNotePolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Disclosure of accounting policy convertible promissory note.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_EmergingGrowthCompanyStatusPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Emerging Growth Company Status</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_EmergingGrowthCompanyStatusPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Emerging Growth Company Status Policy Text Block</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_EmergingGrowthCompanyStatusPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Disclosure of accounting policy for emerging growth company status.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TemporaryEquityAccretionToRedemptionValue_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Accretion of Class A ordinary shares subject to possible redemption to redemption amount</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TemporaryEquityAccretionToRedemptionValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accretion of carrying value to redemption value</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TemporaryEquityAccretionToRedemptionValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Temporary Equity, Accretion to Redemption Value</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsForRepurchaseOfCommonStock_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Redemption of Class A ordinary shares</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsForRepurchaseOfCommonStock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Payments for Repurchase of Common Stock</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsToAcquireInvestments_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Investment of cash in Trust Account</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsToAcquireInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Payments to Acquire Investments</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromRelatedPartyDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Proceeds from promissory note to related parties</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromRelatedPartyDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Proceeds from promissory note &#8211; related party</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromRelatedPartyDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Proceeds from Related Party Debt</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementOfCashFlowsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statement of Cash Flows [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Organization and Business Operations</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountingPoliciesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Significant Accounting Policies [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Organization and Business Operations [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SignificantAccountingPoliciesTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Significant Accounting Policies</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SignificantAccountingPoliciesTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Significant Accounting Policies [Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ClassOfStockDisclosuresAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Initial Public Offering [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_PrivatePlacementTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Private Placement</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_PrivatePlacementTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Private Placement Text Block</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_PrivatePlacementTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">The entire disclosure of private placement.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RelatedPartyTransactionsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Related Party Transactions [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommitmentsAndContingenciesDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Commitments and Contingencies</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommitmentsAndContingenciesDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Commitments and Contingencies Disclosure [Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_AgreementExpirationTerm_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Agreement expiration term</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_AgreementExpirationTerm_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Agreement Expiration Term</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_AgreementExpirationTerm_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Agreement expiration term.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_BusinessCombinationMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Business Combination [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_BusinessCombinationMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_ConditionForFutureBusinessCombinationThresholdNetTangibleAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Condition for future business combination threshold net tangible assets</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_ConditionForFutureBusinessCombinationThresholdNetTangibleAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Condition For Future Business Combination Threshold Net Tangible Assets</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_ConditionForFutureBusinessCombinationThresholdNetTangibleAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">The threshold net tangible assets which the reporting entity must maintain in order to proceed with a business combination utilizing the proceeds of the offering.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_ExtensionAmendmentProposalMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Extension Amendment Proposal [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_HiTechBusinessCombinationMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">HiTech Business Combination [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_NonRedeemableClassAOrdinarySharesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Non- Redeemable Class A Ordinary Shares [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_NonRedeemableClassAOrdinarySharesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Non-Redeemable Class A Ordinary Shares</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_NonRedeemableClassAOrdinarySharesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Non Redeemable Class AOrdinary Shares Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashEquivalentsAtCarryingValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash equivalents</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashEquivalentsAtCarryingValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash Equivalents, at Carrying Value</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UnrecognizedTaxBenefits_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Unrecognized tax benefits</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UnrecognizedTaxBenefits_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Unrecognized Tax Benefits, Beginning Balance</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accrued for the payment of interest and penalties</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherDeferredCostsNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other offering costs</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherDeferredCostsNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Deferred Costs, Net</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsForProceedsFromInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Loan deposited</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsForProceedsFromInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Payments for (Proceeds from) Investments</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodSharesConversionOfUnits_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Converted shares</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodSharesConversionOfUnits_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stock Issued During Period, Shares, Conversion of Units</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubsidiarySaleOfStockAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Sale of Stock [Axis]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ClassOfWarrantOrRightOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Warrants outstanding (in Shares)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ClassOfWarrantOrRightOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Class of Warrant or Right, Outstanding</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IPOMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">IPO [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IPOMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">IPO [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OverAllotmentOptionMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Over-Allotment Option [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OverAllotmentOptionMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Over-Allotment Option [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SaleOfStockNameOfTransactionDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Sale of Stock [Domain]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SharesIssuedPricePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Purchase price</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SharesIssuedPricePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net offering proceeds (in Dollars per share)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SharesIssuedPricePerShare_lbl" xlink:role="http://www.xbrl.org/2009/role/netLabel">Per share price (in Dollars per share)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SharesIssuedPricePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Ordinary shares closing price (in Dollars per share)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockOptionExercisePriceIncrease_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Ordinary shares exceeds, price per share</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockOptionExercisePriceIncrease_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stock Option, Exercise Price, Increase</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WarrantExercisePriceDecrease_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Less than of redemptions of warrant</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WarrantExercisePriceDecrease_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Warrant, Exercise Price, Decrease</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WarrantMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Warrant [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WarrantMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Warrant [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WarrantsAndRightsOutstandingTerm_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Warrants expiry term</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WarrantsAndRightsOutstandingTerm_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Warrants and Rights Outstanding, Term</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_PrivatePlacementDetailsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Private Placement (Details) [Table]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_PrivatePlacementsWarrantMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Private Placement Warrants [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_PrivatePlacementsWarrantMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Private Placements Warrant Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_lbl" xlink:role="http://www.xbrl.org/2009/role/netLabel">Private placement warrants per share</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Price per warrant (in Dollars per share)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Exercise price</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Warrant purchase price per share (in Dollars per share)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ClassOfWarrantOrRightLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Private Placement [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Aggregate of private placement warrants</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Class of Warrant or Right, Number of Securities Called by Warrants or Rights</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromIssuanceOfPrivatePlacement_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Aggregate purchase price</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromIssuanceOfPrivatePlacement_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Gross proceeds</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromIssuanceOfPrivatePlacement_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Proceeds from Issuance of Private Placement</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_FounderShares1Member_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Founder Shares [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_FounderShares1Member_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Founder Shares1 Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_InitialBusinessCombination_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Initial business combination</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_InitialBusinessCombination_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Initial Business Combination</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_InitialBusinessCombination_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Initial Business Combination.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_NumberOfTradingDays_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Number of trading days</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_NumberOfTradingDays_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Number Of Trading Days</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_NumberOfTradingDays_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Number of trading days.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_NumberOfTradingDaysCommencing_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Number of trading days commencing</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_NumberOfTradingDaysCommencing_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Number Of Trading Days Commencing</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_NumberOfTradingDaysCommencing_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Number of trading days commencing.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_OneSponsorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Sponsor One [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_OneSponsorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">One Sponsor [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_PrivatePlacementWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Private Placement Warrants [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_PrivatePlacementWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Private Placement Warrants Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_RelatedPartyTransactionsDetailsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Related Party Transactions (Details) [Table]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_SponsorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Sponsor [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_SponsorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Sponsor Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_SponsorTwoMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Sponsor Two [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_ThresholdNumberOfTradingDaysForDeterminingSharePriceFromDateOfBusinessCombination_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Threshold number of trading days for determining share price from date of business combination</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_ThresholdNumberOfTradingDaysForDeterminingSharePriceFromDateOfBusinessCombination_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Threshold Number Of Trading Days For Determining Share Price From Date Of Business Combination</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_ThresholdNumberOfTradingDaysForDeterminingSharePriceFromDateOfBusinessCombination_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Threshold number of trading days for determining share price from date of business combination.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_TwoThousandTwentyThreeNoteMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">2023 Note [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_TwoThousandTwentyThreeNoteMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Two Thousand Twenty Three Note [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_TwoThousandTwentyTwoNotesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">2022 Notes [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_TwoThousandTwentyTwoNotesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Two Thousand Twenty Two Notes Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_UnsecuredPromissoryNoteMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Unsecured Promissory Note [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_UnsecuredPromissoryNoteMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Unsecured Promissory Note Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_WorkingCapitalLoans_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Working capital loans</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_WorkingCapitalLoans_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Working Capital Loans</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_WorkingCapitalLoans_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Working Capital Loans.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_ChiefExecutiveOfficerMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Executive officers [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_ChiefExecutiveOfficerMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Chief Executive Officer [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_TitleOfIndividualAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Title and Position [Axis]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_TitleOfIndividualWithRelationshipToEntityDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Title and Position [Domain]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdministrativeFeesExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Administrative service fees</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdministrativeFeesExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Administrative Fees Expense</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessAcquisitionAcquireeDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination [Domain]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessAcquisitionAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination [Axis]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ClassOfWarrantOrRightAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Class of Warrant or Right [Axis]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ClassOfWarrantOrRightDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Class of Warrant or Right [Domain]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockConversionBasis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Conversion basis</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockConversionBasis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Stock, Conversion Basis</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesAuthorized_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Ordinary shares, shares authorized</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesAuthorized_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Ordinary shares, shares authorized (in Shares)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesAuthorized_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Stock, Shares Authorized</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Ordinary shares, shares issued</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Ordinary shares, shares issued (in Shares)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Stock, Shares, Issued</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockParOrStatedValuePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Ordinary shares, par value (in Dollars per share)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockParOrStatedValuePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Stock, Par or Stated Value Per Share</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ConversionOfStockSharesConverted1_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Shares converted (in Shares)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ConversionOfStockSharesConverted1_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Conversion of Stock, Shares Converted</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ConvertibleNotesPayableCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Convertible promissory note - related party</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ConvertibleNotesPayableCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Convertible promissory note &#8211; related party</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ConvertibleNotesPayableCurrent_lbl" xlink:role="http://www.xbrl.org/2009/role/netLabel">Borrowings under the working capital loans</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ConvertibleNotesPayableCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Convertible Notes Payable, Current</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ConvertiblePreferredStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Convertible Preferred SPA [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ConvertiblePreferredStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Convertible Preferred Stock [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument [Axis]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentNameDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument, Name [Domain]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentPeriodicPaymentPrincipal_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Drew an aggregate amount</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentPeriodicPaymentPrincipal_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument, Periodic Payment, Principal</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NoninterestBearingDepositLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Noninterest bearing deposit</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NoninterestBearingDepositLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Noninterest-Bearing Deposit Liabilities</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ClassOfStockLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Initial Public Offering [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ClassOfStockLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Shareholders&#8217; Deficit [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByEachWarrantOrRight_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Purchase of redeemable warrant (in Shares)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByEachWarrantOrRight_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Redeemable warrant issued (in Shares)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByEachWarrantOrRight_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Class of Warrant or Right, Number of Securities Called by Each Warrant or Right</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_NumberOfSharesIssuedPerUnit_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Ordinary share issued</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_NumberOfSharesIssuedPerUnit_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Number of Shares Issued Per Unit (in Shares)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_NumberOfSharesIssuedPerUnit_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Number Of Shares Issued Per Unit</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_NumberOfSharesIssuedPerUnit_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Number of Shares Issued Per Unit.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_OrganizationandBusinessOperationsDetailsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Organization and Business Operations (Details) [Table]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_PercentageOfConvertiblePreferredStock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Percentage of cumulative convertible preferred stock</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_PercentageOfConvertiblePreferredStock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Percentage of Convertible Preferred Stock</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_PercentageOfConvertiblePreferredStock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Percentage of convertible preferred stock.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_PercentageOfDiscountToIPOPrice_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Discount rate percentage</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_PercentageOfDiscountToIPOPrice_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Percentage of Discount to IPO Price</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_PercentageOfDiscountToIPOPrice_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Percentage of discount to IPO price.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_PercentageOfPublicShareholdingToBeRedeemedInCaseBusinessCombinationIsNotConsummated_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Public shares, percentage</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_PercentageOfPublicShareholdingToBeRedeemedInCaseBusinessCombinationIsNotConsummated_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Percentage Of Public Shareholding To Be Redeemed In Case Business Combination Is Not Consummated</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_PercentageOfPublicShareholdingToBeRedeemedInCaseBusinessCombinationIsNotConsummated_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Percentage of public shareholding to be redeemed in case business combination is not consummated.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_PreferredStockIssuedAndOutstandingPercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Preferred stock issued and outstanding percentage</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_PreferredStockIssuedAndOutstandingPercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Preferred Stock Issued and Outstanding Percentage</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_PreferredStockIssuedAndOutstandingPercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Preferred stock issued and outstanding percentage.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_PreferredStockRedeemablePercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Redeemable preferred stock percentage</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_PreferredStockRedeemablePercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Preferred Stock Redeemable Percentage</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_PreferredStockRedeemablePercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Percentage of redeemable preferred stock.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_PubCoCommonSharesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">PubCo Common Shares [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_PublicShareMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Public Share [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_PublicShareMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Public Share Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_PublicWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Public Warrants [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_PublicWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Public Warrants Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_RedeemableClassAOrdinarySharesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Redeemable Class A Ordinary Shares [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_RedeemableClassAOrdinarySharesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Redeemable Class A Ordinary Shares</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_RedeemableClassAOrdinarySharesMember_lbl" xlink:role="http://www.xbrl.org/2009/role/netLabel">Class A Ordinary Shares Subject to Possible Redemption [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_RedeemableClassAOrdinarySharesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Redeemable Class AOrdinary Shares Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_RedeemableWarrantMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Redeemable Warrant [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_RedeemableWarrantMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Redeemable Warrant Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_SponsorLoanPerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Sponsor loans per share</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_SponsorLoanPerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Sponsor Loan Per Share</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_SponsorLoanPerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Sponsor loan.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_TransactionCost_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Transaction costs</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_TransactionCost_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Transaction Cost</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_TransactionCost_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Transaction costs.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_TrustAccountPricePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Redemption price per share (in Dollars per share)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_TrustAccountPricePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Trust Account Price Per Share</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_TrustAccountPricePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">The price per share of trust account.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_TrustAccountsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Trust Account [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_TrustAccountsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Trust Accounts Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_TwoZeroTwoFiveExtensionAmendmentProposalMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">2025 Extension Amendment Proposal [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_TwoZeroTwoFiveExtensionAmendmentProposalMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Two Zero Two Five Extension Amendment Proposal Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_TwoZeroTwoFourExtensionAmendmentProposalMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">2024 Extension Amendment Proposal [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_TwoZeroTwoFourExtensionAmendmentProposalMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Two Zero Two Four Extension Amendment Proposal Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_UnitsIssuedDuringPeriodSharesNewIssues_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Units issued during period shares new issues (in Shares)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_UnitsIssuedDuringPeriodSharesNewIssues_lbl" xlink:role="http://www.xbrl.org/2009/role/netLabel">Number of units issued (in Shares)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_UnitsIssuedDuringPeriodSharesNewIssues_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Sale of stock (in Shares)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_UnitsIssuedDuringPeriodSharesNewIssues_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Units Issued During Period Shares New Issues</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_UnitsIssuedDuringPeriodSharesNewIssues_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Units issued during period shares new issues.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_WorkingCapitalDeficit_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Working capital deficit</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_WorkingCapitalDeficit_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Working Capital Deficit</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_WorkingCapitalDeficit_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Working capital deficit.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_MaximumMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Maximum [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_MaximumMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Maximum [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_MinimumMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Minimum [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_MinimumMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Minimum [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_RangeAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statistical Measurement [Axis]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_RangeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statistical Measurement [Domain]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Business combination derived equity value</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination, Consideration Transferred, Equity Interest</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashAndCashEquivalentsAtCarryingValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashAndCashEquivalentsAtCarryingValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash and Cash Equivalent</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CollaborativeArrangementsAndNoncollaborativeArrangementTransactionsLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Organization and Business Operations [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockHeldInTrust_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common stock trust account</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockHeldInTrust_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Stock, Held-in-Trust</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Deposits_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Deposited in trust account</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Deposits_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Deposit</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Deposits_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Deposits</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Significant Accounting Policies [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RelatedPartyDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Related and Nonrelated Parties [Domain]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Shares sold</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Sale of stock (in Shares)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Sale of Stock, Number of Shares Issued in Transaction</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TemporaryEquitySharesIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Subject to possible redemption</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TemporaryEquitySharesIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Temporary Equity, Shares Issued</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_ClassAOrdinarySharesSubjectToPossibleRedemptionMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Class A Ordinary Shares Subject to Possible Redemption [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_ClassAOrdinarySharesSubjectToPossibleRedemptionMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Class AOrdinary Shares Subject To Possible Redemption Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareBasicTwoClassMethodAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Less:</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareBasicTwoClassMethodAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Earnings Per Share, Basic, Two Class Method [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensationForfeited_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Aggregate of forfeiture shares (in Shares)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensationForfeited_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Shares Issued, Shares, Share-Based Payment Arrangement, Forfeited</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodValueNewIssues_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Ordinary shares</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodValueNewIssues_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Committed to purchase amount</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodValueNewIssues_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stock Issued During Period, Value, New Issues</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_CommitmentsandContingenciesDetailsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Commitments and Contingencies (Details) [Table]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_DeferredUnderwritingDiscount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Deferred underwriting discount rate</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_DeferredUnderwritingDiscount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Deferred Underwriting Discount</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_DeferredUnderwritingDiscount_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Deferred underwriting discount.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_DeferredUnderwritingFees_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Deferred underwriting fees</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_DeferredUnderwritingFees_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Deferred underwriting fee</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_DeferredUnderwritingFees_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Deferred Underwriting Fees</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_DeferredUnderwritingFees_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">The amount of deferred underwriting fees.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_UnderwritersOverallotmentOptionPeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Underwriters option period</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_UnderwritersOverallotmentOptionPeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Underwriters Overallotment Option Period</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_UnderwritersOverallotmentOptionPeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">The number of days the underwriters have the option to exercise their overallotment option from the IPO.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_UnderwritingAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Underwriting Agreement [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_UnderwritingAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Underwriting Agreement Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ArrangementsAndNonarrangementTransactionsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Collaborative Arrangement and Arrangement Other than Collaborative [Domain]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LossContingenciesLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Commitments and Contingencies [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsForUnderwritingExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Underwriting discount</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsForUnderwritingExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Underwriting fees</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsForUnderwritingExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Payments for Underwriting Expense</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RelatedPartyTransactionAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Related Party Transaction [Axis]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RelatedPartyTransactionDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Related Party Transaction [Domain]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SegmentReportingCodmProfitLossMeasureHowUsedDescription_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Segment reporting of CODM description</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SegmentReportingCodmProfitLossMeasureHowUsedDescription_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Segment Reporting, CODM, Profit (Loss) Measure, How Used, Description</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsHeldInTrust_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash held in Trust Account</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsHeldInTrust_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Asset, Held-in-Trust</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GeneralAndAdministrativeExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">General and administrative costs</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GeneralAndAdministrativeExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/label">General and Administrative Expense</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SegmentReportingCodmIndividualTitleAndPositionOrGroupOrCommitteeNameExtensibleEnumeration_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Segment Reporting, CODM, Individual Title and Position or Group Name [Extensible Enumeration]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SegmentReportingCodmIndividualTitleAndPositionOrGroupOrCommitteeNameExtensibleEnumeration_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Segment Reporting, CODM, Individual Title and Position or Group Name [Extensible Enumeration]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SegmentReportingInformationAdditionalInformationAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Net Income or Loss and Total Assets [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NumberOfReportableSegments_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Number of reportable segment</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NumberOfReportableSegments_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Number of Reportable Segments</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_NonRedeemableClassAOrdinarySharesAndBOrdinarySharesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Non-Redeemable Class A Ordinary Shares and B Ordinary Shares</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_NonRedeemableClassAOrdinarySharesAndBOrdinarySharesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Non Redeemable Class AOrdinary Shares And BOrdinary Shares Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Basic net loss per share (in Dollars per share)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Basic net loss per share</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Earnings Per Share, Basic</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareDiluted_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Diluted net loss per share (in Dollars per share)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareDiluted_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Diluted net loss per share</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareDiluted_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Earnings Per Share, Diluted</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeStatementAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Income Statement [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NonoperatingIncomeExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total other (expense) income, net</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NonoperatingIncomeExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Nonoperating Income (Expense)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NonoperatingIncomeExpenseAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other income (expense):</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NonoperatingIncomeExpenseAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Nonoperating Income (Expense) [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingIncomeLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Loss from operations</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingIncomeLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Income (Loss)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statement [Table]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Diluted weighted average shares outstanding (in shares)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Weighted Average Number of Shares Outstanding, Diluted</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Basic weighted average shares outstanding (in Shares)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Weighted average ordinary shares</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Weighted Average Number of Shares Outstanding, Basic</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesAndStockholdersEquityAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Liabilities and Equity [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_ReversalOfDeferredUnderwritingFee_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Reversal of deferred underwriting fee</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_ReversalOfDeferredUnderwritingFee_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Reversal of Deferred Underwriting Fee</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_ReversalOfDeferredUnderwritingFee_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">The amount of reversal of deferred underwriting fee.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementEquityComponentsAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity Components [Axis]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementOfStockholdersEquityAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statement of Stockholders' Equity [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquity_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total Shareholders&#8217; Deficit</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquity_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Balance</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquity_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Balance</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquity_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity, Attributable to Parent</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Ordinary Shares, value</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Stock, Value, Issued</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Liabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total Liabilities</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Liabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Liabilities</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TemporaryEquityCarryingAmountAttributableToParent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Class A ordinary shares subject to possible redemption, 46,529 and 64,302 shares at redemption value of approximately $14.20 and $13.37 per share as of June 30, 2026 and December 31, 2025, respectively</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TemporaryEquityCarryingAmountAttributableToParent_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Class A ordinary shares subject to possible redemption ending</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TemporaryEquityCarryingAmountAttributableToParent_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Class A ordinary shares subject to possible redemption beginning</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TemporaryEquityCarryingAmountAttributableToParent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Temporary Equity, Carrying Amount, Attributable to Parent</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WarrantsAndRightsOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Warrant liabilities</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WarrantsAndRightsOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Total liabilities</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WarrantsAndRightsOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Warrants and Rights Outstanding</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accounts payable and accrued expenses</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accounts Payable and Accrued Liabilities, Current</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdditionalPaidInCapital_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Additional paid-in capital</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdditionalPaidInCapital_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Additional Paid in Capital</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherNotesPayableCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Promissory notes &#8211; related parties</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherNotesPayableCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Outstanding balance</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherNotesPayableCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Notes Payable, Current</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Preference shares, $0.0001 par value; 1,000,000 shares authorized; none issued and outstanding as of June 30, 2026 and December 31, 2025</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockValue_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Aggregate purchase price</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Preferred Stock, Value, Issued</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PrepaidExpenseCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Prepaid expenses</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PrepaidExpenseCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Prepaid Expense, Current</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommitmentsAndContingencies_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Commitments and Contingencies (Note 6)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommitmentsAndContingencies_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Commitments and Contingencies</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Assets_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total Assets</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Assets_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Assets</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total current assets</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Assets, Current</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsCurrentAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Current assets:</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsCurrentAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Assets, Current [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsHeldInTrustNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash held in Trust Account</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsHeldInTrustNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Asset, Held-in-Trust, Noncurrent</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Ordinary Shares</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Stock [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdditionalPaidInCapitalMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Additional Paid-In Capital</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdditionalPaidInCapitalMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Additional Paid-in Capital [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquityAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Shareholders&#8217; Deficit</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquityAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity, Attributable to Parent [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash Flows from Operating Activities:</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperationsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Changes in operating assets and liabilities:</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperationsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash Provided by (Used in) Operating Activity, Continuing Operation [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubsequentEventTypeDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Subsequent Event Type [Domain]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accounts payable and accrued expenses</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase (Decrease) in Accounts Payable and Accrued Liabilities</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockConvertibleConversionPrice_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Preferred stock conversion price</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockConvertibleConversionPrice_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Preferred Stock, Convertible, Conversion Price</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockDividendRatePercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Original issue price percentage</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockDividendRatePercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Preferred Stock, Dividend Rate, Percentage</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PrivatePlacementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Private Placement [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PrivatePlacementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Private Placement [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromIssuanceInitialPublicOffering_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Gross proceeds</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromIssuanceInitialPublicOffering_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Proceeds from Issuance Initial Public Offering</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SaleOfStockPricePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Private placement warrants price per share (in Dollars per share)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SaleOfStockPricePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Ordinary shares closing price</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SaleOfStockPricePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Sale of Stock, Price Per Share</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SeriesAPreferredStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Series A Cumulative Convertible Preferred Stock [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SeriesAPreferredStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Series A Preferred Stock [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SharePrice_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Per share (in Dollars per share)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SharePrice_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share Price</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SponsorFees_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Sponsor fees</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SponsorFees_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Sponsor Fees</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodSharesIssuedForServices_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Share purchases (in Shares)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodSharesIssuedForServices_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stock Issued During Period, Shares, Issued for Services</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodSharesNewIssues_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Shares issued</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodSharesNewIssues_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Company purchased (in Shares)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodSharesNewIssues_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stock Issued During Period, Shares, New Issues</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Exercised shares (in Shares)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockRedeemedOrCalledDuringPeriodShares_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Redemption of ordinary shares (in Shares)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockRedeemedOrCalledDuringPeriodShares_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stock Redeemed or Called During Period, Shares</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockRedeemedOrCalledDuringPeriodValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Aggregate redemption</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockRedeemedOrCalledDuringPeriodValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stock Redeemed or Called During Period, Value</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TemporaryEquityAggregateAmountOfRedemptionRequirement_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Aggregate redemption amount</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TemporaryEquityAggregateAmountOfRedemptionRequirement_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Temporary Equity, Aggregate Amount of Redemption Requirement</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TimeDeposits_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Aggregate deposit</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TimeDeposits_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Time Deposits</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TypeOfArrangementAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Collaborative Arrangement and Arrangement Other than Collaborative [Axis]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_AfterTheCompletionOfTheInitialBusinessCombinationDays_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">After the initial business combination days</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_AfterTheCompletionOfTheInitialBusinessCombinationDays_lbl" xlink:role="http://www.xbrl.org/2003/role/label">After The Completion Of The Initial Business Combination Days</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_AfterTheCompletionOfTheInitialBusinessCombinationDays_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">The number of days after the completion of the initial business combination days.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_NumberOfConsecutiveTradingDaysForDeterminingSharePrice_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Number of consecutive trading days for determining share price</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_NumberOfConsecutiveTradingDaysForDeterminingSharePrice_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Number Of Consecutive Trading Days For Determining Share Price</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_NumberOfConsecutiveTradingDaysForDeterminingSharePrice_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Number of consecutive trading days for determining share price.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_NumberOfTradingDaysForDeterminingSharePrice_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Number of trading days for determining share price</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_NumberOfTradingDaysForDeterminingSharePrice_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Number Of Trading Days For Determining Share Price</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_NumberOfTradingDaysForDeterminingSharePrice_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Number of trading days for determining share price.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_PercentageOfSharesOutstandingAfterConversionFromOneClassToAnother_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Percentage of shares outstanding conversion basis</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_PercentageOfSharesOutstandingAfterConversionFromOneClassToAnother_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Percentage Of Shares Outstanding After Conversion From One Class To Another</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_PercentageOfSharesOutstandingAfterConversionFromOneClassToAnother_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Percentage of shares outstanding after conversion from one class to another.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_ShareholdersDeficitDetailsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Shareholders&#8217; Deficit (Details) [Table]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentConvertibleStockPriceTrigger_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Exceeds price per share (in Dollars per share)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentConvertibleStockPriceTrigger_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument, Convertible, Stock Price Trigger</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentFaceAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Amount borrowed</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentFaceAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument, Face Amount</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentIssuedPrincipal_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Initial principal amount</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentIssuedPrincipal_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument, Issued, Principal</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentRepaidPrincipal_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Balance repaid</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentRepaidPrincipal_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument, Repaid, Principal</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Purchase of aggregate shares</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashFDICInsuredAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Federal deposit insurance corporation coverage (in Dollars)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashFDICInsuredAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash, FDIC Insured Amount</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_OfferingCostsAssociatedWithTheInitialPublicOfferingPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Offering Costs Associated with the Initial Public Offering</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_OfferingCostsAssociatedWithTheInitialPublicOfferingPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Offering Costs Associated With The Initial Public Offering Policy Text Block</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_OfferingCostsAssociatedWithTheInitialPublicOfferingPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">The disclosure of accounting policy offering costs associated with the initial public offering.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_OrdinarySharesSubjectToPossibleRedemptionPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Class A Ordinary Shares Subject to Possible Redemption</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_OrdinarySharesSubjectToPossibleRedemptionPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Ordinary Shares Subject To Possible Redemption Policy Text Block</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_OrdinarySharesSubjectToPossibleRedemptionPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">The disclosure of accounting policies for ordinary shares subject to possible redemption.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_ReconciliationOfNetLossIncomePerOrdinarySharePolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Reconciliation of Net Loss per Ordinary Share</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_ReconciliationOfNetLossIncomePerOrdinarySharePolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Reconciliation Of Net Loss Income Per Ordinary Share Policy Text Block</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_ReconciliationOfNetLossIncomePerOrdinarySharePolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Disclosure of accounting policy for reconciliation of net (loss) income per ordinary share.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_WarrantLiabilitiesPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Warrant Liabilities</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_WarrantLiabilitiesPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Warrant Liabilities Policy Text Block</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_WarrantLiabilitiesPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">The disclosure of accounting policies for warrant liabilities.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BasisOfAccountingPolicyPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Basis of Presentation</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BasisOfAccountingPolicyPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Basis of Accounting, Policy [Policy Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashAndCashEquivalentsPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash and Cash Equivalents</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashAndCashEquivalentsPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash and Cash Equivalents, Policy [Policy Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ConcentrationRiskCreditRisk_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Concentration of Credit Risk</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ConcentrationRiskCreditRisk_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Concentration Risk, Credit Risk, Policy [Policy Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_RedeemWarrantsPerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Redeem warrants per share</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_RedeemWarrantsPerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Redeem Warrants Per Share</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_RedeemWarrantsPerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Redeem warrants per share.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_RedemptionOfWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Redemption of Warrants [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_RedemptionOfWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Redemption Of Warrants Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_RedemptionPricePerWarrant_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Redemption price per warrant</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_RedemptionPricePerWarrant_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Redemption Price Per Warrant</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_RedemptionPricePerWarrant_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Redemption price per warrant.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_WarrantsPricePerShares_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Warrant price per shares</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_WarrantsPricePerShares_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Warrants Price Per Shares</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_WarrantsPricePerShares_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Shares of warrants price per shares.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_CompanyWithdrawnAmountOnThisDateInConnectionWithRedemption_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Trust account withdrawal date - redemption</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_CompanyWithdrawnAmountOnThisDateInConnectionWithRedemption_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Company Withdrawn Amount On This Date In Connection With Redemption</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_CompanyWithdrawnAmountOnThisDateInConnectionWithRedemption_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Represent the company withdrawn amount on this date in connection with redemption.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_NonRedeemableClassAAndBOrdinarySharesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Non-Redeemable Class A and B Ordinary Shares [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_NonRedeemableClassAAndBOrdinarySharesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Non-Redeemable Class A Ordinary Shares and Class B Ordinary Shares [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_NonRedeemableClassAAndBOrdinarySharesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Non Redeemable Class AAnd BOrdinary Shares Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_SignificantAccountingPoliciesDetailsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Significant Accounting Policies (Details) [Table]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_TransactionCosts_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Transaction costs (in Dollars)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_TransactionCosts_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Transaction Costs</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_TransactionCosts_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Represent the amount of transaction costs.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerSharePolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net Loss per Ordinary Share</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerSharePolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Earnings Per Share, Policy [Policy Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueOfFinancialInstrumentsPolicy_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair Value of Financial Instruments</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueOfFinancialInstrumentsPolicy_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value of Financial Instruments, Policy [Policy Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Income Taxes</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Income Tax, Policy [Policy Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Recent Accounting Pronouncements</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">New Accounting Pronouncements, Policy [Policy Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UseOfEstimates_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Use of Estimates</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UseOfEstimates_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Use of Estimates, Policy [Policy Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_UnanimousDirectorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Unanimous Director [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_TwentyTwentyFourNoteMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">2024 Note [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_TwentyTwentyFourNoteMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Twenty Twenty Four Note [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_StatementScenarioAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Scenario [Axis]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_ScenarioUnspecifiedDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Scenario [Domain]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_ScenarioForecastMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Forecast [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_MorganStanleyCoLLCMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Morgan Stanley &amp; Co. LLC [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_FairValueMeasurementsScheduleofFairValueHierarchyoftheValuationInputsDetailsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value Measurements - Schedule of Fair Value Hierarchy of the Valuation Inputs (Details) [Table]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_PrivatePlacementWarrantLiabilityMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Private Placement Warrant Liability [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_PrivatePlacementWarrantLiabilityMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Private Placement Warrant Liability Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_PublicWarrantLiabilityMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Public Warrant Liability [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_PublicWarrantLiabilityMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Public Warrant Liability Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_ScheduleOfFairValueHierarchyOfTheValuationInputsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule Of Fair Value Hierarchy Of The Valuation Inputs Abstract</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Fair Value Hierarchy of the Valuation Inputs [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueByFairValueHierarchyLevelAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value Hierarchy and NAV [Axis]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueInputsLevel2Member_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Level 2 [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueInputsLevel2Member_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value, Inputs, Level 2 [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueMeasurementsFairValueHierarchyDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value Hierarchy and NAV [Domain]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Liabilities</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Liabilities [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Basic and Diluted Net (Loss) Income</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TemporaryEquityTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Class A Ordinary Shares Subject to Possible Redemption Reflected</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TemporaryEquityTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Temporary Equity [Table Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Fair Value Hierarchy of the Valuation Inputs</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value, Liabilities Measured on Recurring Basis [Table Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ReconciliationOfOperatingProfitLossFromSegmentsToConsolidatedTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Net Income or Loss and Total Assets</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ReconciliationOfOperatingProfitLossFromSegmentsToConsolidatedTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Segment Reporting, Reconciliation of Profit (Loss) by Segment to Consolidated [Table Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TemporaryEquityAccretionToRedemptionValueAdjustment_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Redemptions</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TemporaryEquityAccretionToRedemptionValueAdjustment_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Temporary Equity, Accretion to Redemption Value, Adjustment</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TemporaryEquityByClassOfStockTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Temporary Equity, by Class of Stock [Table]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TemporaryEquityDisclosureAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Plus:</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TemporaryEquityDisclosureAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Temporary Equity Disclosure [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TemporaryEquityLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Class A Ordinary Shares Subject to Possible Redemption Reflected [Line Item]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_ScheduleOfBasicAndDilutedNetLossIncomeAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule Of Basic And Diluted Net Loss Income Abstract</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_SignificantAccountingPoliciesScheduleofBasicandDilutedNetLossIncomeDetailsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Significant Accounting Policies - Schedule of Basic and Diluted Net (Loss) Income (Details) [Table]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareBasicLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Basic and Diluted Net (Loss) Income [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Allocation of net loss</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Net Income (Loss) Available to Common Stockholders, Basic</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_ClassOfWarrantOrRightRedemptionOfWarrantsOrRightsStockPriceTrigger_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Redemptions of warrants, per share</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_ClassOfWarrantOrRightRedemptionOfWarrantsOrRightsStockPriceTrigger_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Class Of Warrant Or Right Redemption Of Warrants Or Rights Stock Price Trigger</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_ClassOfWarrantOrRightRedemptionOfWarrantsOrRightsStockPriceTrigger_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Price of the entity's common stock which would be required to be attained to trigger the redemption of warrants.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_InitialBusinessCombinationMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Initial Business Combination [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_InitialBusinessCombinationMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Initial Business Combination Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_InitialBusinessCombinationPricePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Initial business combination price per share</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_InitialBusinessCombinationPricePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Initial Business Combination Price Per Share</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_InitialBusinessCombinationPricePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Initial business combination price per share.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_InitialPublicOfferingDetailsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Initial Public Offering (Details) [Table]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_IssuePriceOrEffectiveIssuePrice_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Issue price or effective issue price</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_IssuePriceOrEffectiveIssuePrice_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Issue Price Or Effective Issue Price</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_IssuePriceOrEffectiveIssuePrice_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Issue price or effective issue price.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_MarketValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Market value</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_MarketValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Market Value</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_MarketValue_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Market value.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_MarketValuePercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Market value percentage</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_MarketValuePercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Market Value Percentage</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_MarketValuePercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Market value percentage.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_NewlyIssuedPercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Newly issued price percentage</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_NewlyIssuedPercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Newly Issued Percentage</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_NewlyIssuedPercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Newly issued Percentage</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_NewlyIssuedPrice_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Newly issued price</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_NewlyIssuedPrice_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Newly Issued Price</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_NewlyIssuedPrice_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Newly issued price.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_NewlyIssuedPricePercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Newly issued price percentage</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_NewlyIssuedPricePercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Newly Issued Price Percentage</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_NewlyIssuedPricePercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Newly issued price percentage.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_NumberOfTradingDaysForDeterminingTheVolumeWeightedAveragePriceOfShares_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Number of trading days</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_NumberOfTradingDaysForDeterminingTheVolumeWeightedAveragePriceOfShares_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Number Of Trading Days For Determining The Volume Weighted Average Price Of Shares</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_NumberOfTradingDaysForDeterminingTheVolumeWeightedAveragePriceOfShares_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Number of trading days for determining the volume weighted average price of shares.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_NumberOfWarrantsIssuedPerUnit_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Number of warrants issued per unit (in Shares)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_NumberOfWarrantsIssuedPerUnit_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Number Of Warrants Issued Per Unit</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_NumberOfWarrantsIssuedPerUnit_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Number of Warrants Issued Per Unit.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_PriorWrittenNoticeOfRedemptionTerm_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Prior written notice of redemption term</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_PriorWrittenNoticeOfRedemptionTerm_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Prior Written Notice Of Redemption Term</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_PriorWrittenNoticeOfRedemptionTerm_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Prior written notice of redemption term.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_PurchasePricePerUnit_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Purchase price unit</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cstwf_PurchasePricePerUnit_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Purchase Price Per Unit</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SeriesOfIndividuallyImmaterialBusinessAcquisitionsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Initial Business Combination [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SeriesOfIndividuallyImmaterialBusinessAcquisitionsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination, Series of Individually Immaterial Business Combinations [Member]</link:label>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ChiefFinancialOfficerMember" xlink:label="srt_ChiefFinancialOfficerMember" />
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