docs: update dify for education policy details and faq

[RiskeyL]

Summary

Updates the Dify for Education section of the Billing page (en/zh/ja) to match the reopened application flow and the current education offer policy, per the operations team's update request.

• Intro scopes the offer to current students, teachers, and staff, and states entitlements: all Professional plan features and quotas except AI credits (200 one-time credits, Sandbox-level, no monthly refill).
• Prerequisites align with the verification form's roles; an Info callout covers personal/alumni email ineligibility, proof requests, and domain-level restrictions under the Terms of Service.
• Steps reflect the current flow: automatic email-domain check, terms agreement, and checkout with the full year covered.
• FAQ adds entries for subscription expiry, graduation, and account email changes; the rejection entry now mentions domain-level restrictions.

Closes DC-194

[Copilot]

Pull request overview

Updates the Dify for Education portion of the Billing/Subscription Management page across en/zh/ja to reflect the reopened verification flow and the current education offer policy (eligibility, AI credits entitlement, verification steps, and expanded FAQ coverage).

Changes:

• Refines eligibility/prerequisites and adds an Info callout covering ineligible email types and domain-level restrictions.
• Updates the step-by-step verification + checkout flow to match the current product process.
• Expands the FAQ with subscription expiry, graduation, and account email change guidance.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 4 comments.

File	Description
en/cloud/use-dify/workspace/subscription-management.mdx	Updates Education policy wording, steps, and FAQ to match the current flow and entitlements.
zh/cloud/use-dify/workspace/subscription-management.mdx	Chinese translation update of Education policy/flow + FAQ; includes new callouts and entitlement wording.
ja/cloud/use-dify/workspace/subscription-management.mdx	Japanese translation update of Education policy/flow + FAQ; includes new callouts and entitlement wording.

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[Copilot]

Pull request overview

Copilot reviewed 3 out of 3 changed files in this pull request and generated 2 comments.

Suppressed comments (3)

Previously missed (1) — in code that hasn't changed since the last review.

ja/cloud/use-dify/workspace/subscription-management.mdx:28

• 「AI クレジットを除き」と書いた直後に「200 クレジット」と続くため、特典内容が矛盾して見える可能性があります。Sandbox 相当のクレジットが付与される旨として書き分けると誤解を避けられます。

教育ワークスペースには、AI クレジットを除き、Professional プランのすべての機能とリソースクォータが含まれます。組み込みモデルの利用枠は Sandbox プランと同じ一回限りの 200 クレジットで、毎月の補充はありません。使い切った後は、自分の [モデルプロバイダー](/ja/cloud/use-dify/workspace/model-providers) の API キーを設定すれば、引き続きモデルを利用できます。

zh/cloud/use-dify/workspace/subscription-management.mdx:3

• Frontmatter in the zh Cloud docs consistently quotes string values (e.g., zh/cloud/use-dify/workspace/team-members-management.mdx:2-4, zh/cloud/use-dify/workspace/model-providers.mdx:2-4). This page now uses unquoted values, which is inconsistent and may break formatting/lint expectations.

title: 计费
description: 管理工作空间订阅、计划变更以及 Dify 教育版优惠

ja/cloud/use-dify/workspace/subscription-management.mdx:3

• Frontmatter in the ja Cloud docs consistently quotes string values (e.g., ja/cloud/use-dify/workspace/team-members-management.mdx:2-4, ja/cloud/use-dify/workspace/model-providers.mdx:2-4). This page now uses unquoted values, which is inconsistent and may break formatting/lint expectations.

title: 請求
description: ワークスペースのサブスクリプション、プラン変更、Dify for Education 割引を管理

[Copilot]

Pull request overview

Copilot reviewed 3 out of 3 changed files in this pull request and generated no new comments.

Suppressed comments (4)

Previously missed (3) — in code that hasn't changed since the last review.

zh/cloud/use-dify/workspace/subscription-management.mdx:26

• This sentence uses “折扣” while the rest of the section uses “教育优惠”. Keeping one term consistently across the page reduces confusion.

This issue also appears on line 68 of the same file.

在读学生、在职教师及教育工作者可通过验证教育身份，免费使用年付 Professional 计划。每年需要重新验证以维持折扣。

en/cloud/use-dify/workspace/subscription-management.mdx:66

• The FAQ answer switches from “Monthly Professional plan” to “Monthly plan”, which is ambiguous (there may be multiple monthly plans). It’s clearer to keep the plan name consistent throughout the sentence.

    You likely selected the Monthly Professional plan. The education discount applies only to the **Yearly** plan, so the Monthly plan charges the full price.

ja/cloud/use-dify/workspace/subscription-management.mdx:68

• This sentence switches from “月額 Professional プラン” to the shorter “月額プラン”, which can be ambiguous. Keeping the full plan name makes the FAQ clearer and consistent within the answer.

    月額 Professional プランを選択した可能性があります。教育割引は年額プランのみに適用されるため、月額プランでは全額が請求されます。

zh/cloud/use-dify/workspace/subscription-management.mdx:70

• This FAQ uses “教育折扣” while other places in the section use “教育优惠”. Consider using a single term consistently.

    你可能选择了月付 Professional 计划。教育折扣仅适用于年付计划，所以月付计划会按全额收费。

    解决方法：取消当前订阅，等到计费周期结束后，订阅 **年付** Professional 计划（含教育折扣）。