Document and Entity Information Entity Addresses [Table] Document and Entity Information Entity Addresses, Address Type [Axis] Address Type [Domain] Business Contact [Member] Business Contact Equity Components [Axis] Equity Component [Domain] Ordinary shares Ordinary shares Class of Stock [Axis] Class of Stock [Domain] Class of Stock ADR ADR Class A ordinary shares Class A ordinary shares Class B ordinary shares Class B ordinary shares Entity Addresses [Line Items] Document and Entity Information Document Type Document Registration Statement Document Annual Report Document Period End Date Document Transition Report Document Shell Company Report Entity File Number Entity Registrant Name Entity Incorporation, State or Country Code Entity Address, Address Line One Entity Address, City or Town Entity Address, Postal Zip Code Entity Address, Country Contact Personnel Name Country Region City Area Code Local Phone Number Title of 12(b) Security Trading Symbol Security Exchange Name Entity Common Stock, Shares Outstanding Entity Well-known Seasoned Issuer Entity Voluntary Filers Entity Current Reporting Status Entity Interactive Data Current Entity Filer Category Entity Emerging Growth Company ICFR Auditor Attestation Flag Document Financial Statement Error Correction [Flag] Document Accounting Standard Entity Shell Company Amendment Flag Entity Central Index Key Current Fiscal Year End Date Document Fiscal Year Focus Document Fiscal Period Focus Auditor Name Auditor Firm ID Auditor Location CONSOLIDATED BALANCE SHEETS Statement [Table] Statement Share-Based Compensation Employee Benefit Plans Assets [Abstract] ASSETS Assets, Current [Abstract] Current assets: Cash and Cash Equivalents, at Carrying Value Cash and cash equivalents Cash and cash equivalent Restricted Cash and Cash Equivalents, Current Restricted cash Short-term Investments Short-term investments (including nil and RMB40,000 of the investments measured at fair value as of December 31, 2024 and 2025) Short term investment Accounts Receivable, Net, Current Accounts receivable, net of allowance for credit losses of RMB126,936 and RMB177,770 as of December 31, 2024 and 2025, respectively Accounts receivable, net Inventory, Net Inventories Inventories, net Prepaid Supplies Advances to suppliers Advance to suppliers Derivative Asset, Current Derivative financial assets Prepaid Expense and Other Assets, Current Prepayments and other current assets Prepayment and other current assets Due from Related Parties, Current Amounts due from related parties Amounts due from subsidiaries and VIE Other Receivable, after Allowance for Credit Loss, Current, Related Party, Type [Extensible Enumeration] Assets, Current Total current assets Assets, Noncurrent [Abstract] Non-current assets: Debt Securities, Noncurrent Long-term debt investments (including RMB144,873 of the investments measured at fair value as of December 31, 2025) The total amount of investments that are intended to be held for an extended period of time (longer than one operating cycle) excluding long-term debt securities. Long Term Investments Excluding Investment in Debt Securities Long-term equity investments Total long-term investments Property, Plant and Equipment, Net Property and equipment, net Property and equipment, net Property and equipment, net Finite-Lived Intangible Assets, Net Intangible assets, net Amount of right of use asset from prepayments of operating leases on land acquired from local governments. Land Use Right, Net Land use right, net Operating Lease, Right-of-Use Asset Operating lease right-of-use assets Goodwill Goodwill Goodwill Other Assets, Noncurrent Other non-current assets Deferred Tax Assets, Net, Noncurrent Deferred tax assets Assets, Noncurrent Total non-current assets Assets TOTAL ASSETS Liabilities and Equity [Abstract] LIABILITIES LIABILITIES AND SHAREHOLDERS' EQUITY Liabilities, Current [Abstract] Current liabilities: Short-term Debt Short-term loan Short-term loans Accounts Payable, Current Accounts payable Accounts payable Notes Payable, Current Notes payable Accrued Income Taxes, Current Income tax payables Income tax payables Amount of the carrying values as of the balance sheet date of obligations incurred through that date and due within one year (or the operating cycle, if longer), including accrued expenses, advances from customer, deferred revenue and other costs not separately disclosed in the balance sheet that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Accrued Expenses and Other Current Liabilities. Accrued expenses and other current liabilities Accrued expenses and other current liabilities Derivative Liability, Current Derivative financial liabilities Other Liabilities, Current Amounts due to related parties Other current liabilities Other Liability, Current, Related Party [Extensible Enumeration] Operating Lease, Liability, Current Less: current operating lease liabilities Current operating lease liabilities Liabilities, Current Total current liabilities Liabilities, Noncurrent [Abstract] Non-current liabilities: Deferred Tax Liabilities, Net, Noncurrent Net deferred tax liabilities Deferred tax liabilities Operating Lease, Liability, Noncurrent Long-term operating lease liabilities Long-term operating lease liabilities Other Liabilities, Noncurrent Other non-current liabilities Liabilities, Noncurrent Total non-current liabilities Total non-current liabilities TOTAL LIABILITIES Liabilities. Total liabilities TOTAL LIABILITIES Redeemable Noncontrolling Interest, Equity, Carrying Amount Closing balance Opening balance Redeemable non-controlling interests Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract] Baozun Inc. shareholders' equity: SHAREHOLDERS' EQUITY Common Stock, Value, Issued Ordinary shares Additional Paid in Capital Additional paid-in capital Treasury Stock, Value Treasury shares (14,331,000 and 13,268,625 shares as of December 31, 2024 and 2025, respectively) Treasury shares(14,331,000 and 13,268,625 shares as of December 31, 2024 and 2025, respectively) Retained Earnings (Accumulated Deficit) Accumulated deficit Accumulative deficit Accumulated Other Comprehensive Income (Loss), Net of Tax Accumulated other comprehensive income Total shareholders' equity Stockholders' Equity Attributable to Parent Total Baozun Inc. shareholders' equity Stockholders' Equity Attributable to Noncontrolling Interest Non-controlling interests Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest Ending balance Beginning balance Total Shareholders' equity Liabilities and Equity TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY TOTAL LIABILITIES, REDEEMABLE NON-CONTROLLING INTERESTS AND SHAREHOLDERS' EQUITY The portion of short-term investments that is measured at fair value on a recurring basis as of the reporting date. Short Term Investments Measured At Fair Value Portion Short-term investments Allowance for Doubtful Accounts Receivable, Current Balance at end of the year Balance at beginning of the year Accounts receivable, allowance for doubtful accounts Debt Securities, Trading Long-term debt investments, portion measured at fair value Long-term debt investments Common Stock, Number of Shares, Par Value and Other Disclosures [Abstract] Ordinary shares: Common Stock, Par or Stated Value Per Share Par value (in dollars per share) Common Stock, Shares Authorized Shares authorized (in shares) Common Stock, Shares, Issued Ending balance (in shares) Beginning balance (in shares) Shares issued (in shares) Common Stock, Shares, Outstanding Shares outstanding (in shares) Treasury Stock, Shares Ending balance, treasury shares (in shares) Beginning balance, treasury shares (in shares) Treasury shares (in shares) CONSOLIDATED STATEMENTS OF OPERATIONS Product and Service [Axis] Product and Service [Domain] Product [Member] Product sales Service [Member] Service Revenues [Abstract] Net revenues Revenue from Contract with Customer, Excluding Assessed Tax Net revenues Costs and Expenses [Abstract] Operating expenses: Cost of Goods and Services Sold Cost of products Cost of products Amount of costs incurred to operate and staff fulfillment and customer service centers, including buying, receiving, inspecting, and warehousing inventories; picking, packaging and preparing customer orders for shipment; payment processing and related transaction costs. Fulfillment costs also include amounts paid to third parties that assist us in fulfillment and customer service operations. Fulfillment Fulfillment Selling and Marketing Expense Sales and marketing Amount of payroll and related expenses for employees involved in platform development, editorial content, and systems support, as well as costs and depreciation associated with the computing, storage and telecommunications infrastructure. Technology and Content Technology and content General and Administrative Expense General and administrative General and administrative Other Operating Income (Expense), Net Other operating income, net Goodwill, Impairment Loss Impairment of goodwill Impairment losses Goodwill loss Impairment of goodwill Costs and Expenses Total operating expenses Operating Income (Loss) Adjusted Operating (Losses) Profits (Loss) Income from operations Loss from operations Nonoperating Income (Expense) [Abstract] Other income (expenses): Investment Income, Interest Interest income Interest Expense Interest expense Unrealized Gain (Loss) on Investments Unrealized investment loss (gain) Unrealized investment gain (loss) Unrealized investment (loss) gain Amount of gain (loss) on sale or disposal of an equity method investment. Equity Method Investment, Realized Gain (Loss) on Disposals Gain on disposal of investments Amount of gain (loss) on sale or disposal and/or acquisition of subsidiaries. Gain (Loss) On Disposition Or Acquisition Of Stock In Subsidiary Loss (gain) on acquisition or disposal of subsidiaries Gain (loss) on disposal/acquisition of subsidiaries Amount of loss incurred from impairment of investments. Impairment Loss Of Investments Impairment loss of investments Impairment loss of investments Foreign Currency Transaction Gain (Loss), before Tax Exchange loss (gain) Exchange loss Exchange loss Exchange (loss) gain Amount of expense (income) related to adjustment to fair value of financial instruments. Fair Value Adjustment of Financial Instruments Fair value change on financial instruments Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest Loss before income tax Loss before income tax and share of income (loss) in equity method investments Income Tax Expense (Benefit) Income tax expense Total provision for income taxes Income (Loss) from Equity Method Investments Share of loss (income) in equity method investment Share of loss in equity method investment Share of income (loss) in equity method investments Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Net income Net loss Net loss Net Income (Loss) Attributable to Nonredeemable Noncontrolling Interest Net (income) loss attributable to non-controlling interests Net Income (Loss) Attributable to Redeemable Noncontrolling Interest Net income attributable to redeemable non-controlling interests Net income attributable to redeemable non-controlling interest Net loss attributable to ordinary shareholders of Baozun Inc. No definition available. Basic And Diluted Earnings Per Share [Abstract] Net loss per share attributable to ordinary shareholders of Baozun Inc.: Net loss per share attributable to ordinary shareholders of Baozun Inc. Earnings Per Share, Basic Basic (in dollars per share) Basic Earnings Per Share, Diluted Diluted (in dollars per share) Diluted Earnings Per American Depositary Shares Basic And Diluted [Abstract] Net loss per American depositary shares ("ADS") attributable to ordinary shareholders of Baozun Inc.: Net loss per ADS (1 ADS represents 3 Class A ordinary shares) attributable to ordinary shareholders of Baozun Inc. The amount of net income (loss) for the period per each American Depositary Share ("ADS") outstanding during the reporting period. Earnings Per American Depositary Share Basic Basic (in dollars per share) Basic The amount of net income (loss) for the period available to American Depositary Share ("ADS") outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of shares for all dilutive potential shares outstanding during the reporting period. Earnings Per American Depositary Share Diluted Diluted (in dollars per share) Diluted Related Party [Axis] Related Party [Domain] Related Party Related Party CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract] Other comprehensive income (loss), net of tax of nil: Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Parent Foreign currency translation adjustment Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest Comprehensive loss Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income (loss) and other comprehensive income (loss), attributable to nonredeemable noncontrolling interests. Excludes changes in equity resulting from investments by owners and distributions to owners. Comprehensive Income Loss Net Of Tax Attributable To Non Redeemable Noncontrolling Interest Total comprehensive (income) loss attributable to non-controlling interests Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income (loss) and other comprehensive income (loss), attributable to redeemable noncontrolling interests. Excludes changes in equity resulting from investments by owners and distributions to owners. Comprehensive Income (Loss), Net of Tax, Attributable to Redeemable Noncontrolling Interest Total comprehensive income attributable to redeemable non-controlling interests Comprehensive Income (Loss), Net of Tax, Attributable to Parent Comprehensive Income (Loss), Net of Taxes, Attributable to Parent Total comprehensive loss attributable to ordinary shareholders of Baozun Inc. CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY Total Baozun shareholders' equity Total Baozun shareholders' equity Treasury shares Treasury shares Additional paid-in capital Additional paid-in capital Retained Earnings Accumulated losses Accumulated other comprehensive income Noncontrolling Interest Noncontrolling Interest Treasury Stock, Retired, Cost Method, Amount Cancellation of treasury shares Treasury Stock, Shares, Retired Cancellation of treasury shares (in shares) Number of shares retired (in shares) Treasury Stock, Value, Acquired, Cost Method Share repurchases Share repurchases, cash consideration Treasury Stock, Shares, Acquired Ordinary shares acquired (in shares) Share repurchases (in shares) Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition Share-based compensation Value of shares of stock issued attributable to exercise of stock options and vesting of restricted stock units. Stock Issued During Period, Value, Stock Options Exercised And Restricted Stock Units Vested Exercise of share options and vesting of RSUs Number of shares of stock issued attributable to exercise of stock options and vesting of restricted stock units. Stock Issued During Period, Shares, Stock Options Exercised And Restricted Stock Units Vested Exercise of share options and vesting of RSUs (in shares) Shares issued upon exercise of share options and vesting of RSUs (in shares) Amount of Tax effect relating to the investment from Cainiao Network. Tax Effect Relating To The Investment Tax effect relating to the investment from Cainiao Decrease (increase) equity attributable to transactions involving noncontrolling interest (for example, but not limited to, redeeming or purchasing the interests of noncontrolling shareholders, issuance of shares (interests) by the non-wholly owned subsidiary to the parent entity for other than cash, and a buyback of shares (interest) by the non-wholly owned subsidiary from the noncontrolling interests). Minority Interest Decrease (Increase) From Redemptions Acquisition of non-controlling interest Amount of increase (decrease) in equity resulting from changes in no-controlling interest. Increase (Decrease) In Non-controlling Interest Capital contributions from noncontrolling interests Amount of increase (decrease) to additional paid in capital (APIC) resulting from settlement of derivative liabilities by issuance of shares. Adjustments to Additional Paid In Capital, Settlement Of Derivative Liabilities With Cainiao with shares of a subsidiary Settlement of derivative liabilities with Cainiao with shares of a subsidiar Noncontrolling Interest, Increase from Business Combination Noncontrolling interests in Zhejiang location Acquisition of a subsidiary Noncontrolling Interest, Decrease from Deconsolidation Disposal of subsidiaries Noncontrolling Interest, Change in Redemption Value Adjustment to redeemable non-controlling interests Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders Dividend to non-controlling interest shareholders Increase in noncontrolling interest due to transfer from redeemable noncontrolling interests to noncontrolling interests. Noncontrolling Interest, Increase from Reclassification of Redeemable Non-Controlling Interests Transfer from redeemable non-controlling interests to non-controlling interests Adjustments to Additional Paid in Capital, Other Others CONSOLIDATED STATEMENTS OF CASH FLOWS Net Cash Provided by (Used in) Operating Activities [Abstract] Cash flows from operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Adjustments to reconcile net income to net cash provided by (used in) operating activities: Adjustments to reconcile net income to net cash provided by (used in) operating activities: Provision for Doubtful Accounts Provision for (reversal of) credit losses allowance Provision for allowance