Step 1第 1 步
Pick the checkout entry先选结账入口
Use LA 500 for AI tools and US sites, HK CMI+NTT 500 for China-facing latency checks, or Tokyo 100 for Japan-related use.AI 工具和美国网站先看 LA 500；中国方向延迟敏感先看 HK CMI+NTT 500；日本相关服务再看 Tokyo 100。
Just My Socks buy guide: coupon, checkout and setupJust My Socks 购买指南：优惠码、结账和导入
The useful part is not “click buy and pay”. It is knowing what to check before payment and where to look after the order is created.真正有用的不是“点击购买然后付款”，而是付款前该看什么，以及订单创建后去哪里找节点信息。
Quick answer快速结论
For most users, begin with LA 500 for AI tools and US sites, HK CMI+NTT 500 for China-facing browsing, or Tokyo 100 for Japan-related services. The order summary shows the plan, billing cycle and coupon result together.大多数用户可按用途直接选择：AI 工具和美国网站选 LA 500，中国方向日常浏览选 HK CMI+NTT 500，日本相关服务选 Tokyo 100。订单摘要会集中显示套餐、账期和优惠结果。
Recommended next step下一步建议
Step 2第 2 步
Find the coupon field找到优惠码输入框
When the checkout flow shows a promo or coupon field, paste JMS9272283. Do not assume the code worked just because it was accepted by the form.结账流程出现 promo / coupon 输入框时粘贴 JMS9272283。不要只看“能输入”，要看金额是否真的变化。
Step 3第 3 步
Check the final total核对最终金额
Before payment, look for a discount line or changed total, the selected billing cycle, the plan name and the device or traffic limits.付款前看折扣行或最终总价、账期、套餐名、设备数和流量限制。
Step 4第 4 步
Save order access保存订单入口
After payment, keep the order email and client-area login. The service details and node import information are usually checked from the client area or service detail page.付款后保存订单邮件和用户中心登录信息。节点信息、服务详情通常在用户中心或服务详情页查看。
Checkout checklist before you pay付款前检查清单
- 1. Plan name: make sure the page still says the package you meant to buy. 套餐名：确认页面显示的还是你想买的那个套餐。
- 2. Coupon: paste 优惠码：粘贴 and check whether the total changes. 后确认总价是否变化。
- 3. Billing cycle: monthly and longer cycles can lead to different totals. 账期：月付和更长账期的总价不同，别点错。
- 4. Availability: if the merchant page says out of stock, go back and choose another entry instead of waiting on the error page. 库存：如果商家页面显示缺货，返回换入口，不要停在错误页。
LA 500
AI tools / US sitesAI 工具 / 美国网站
HK CMI+NTT 500
China route comparison中国方向线路对比
Tokyo 100
Japan route fallback日本方向备用
After payment: where to continue付款后下一步
Open the client area or service detail page, copy the subscription or node information provided by the merchant, then import it into your client. For client setup, continue with the Clash guide.进入用户中心或服务详情页，复制商家提供的订阅或节点信息，再导入你的客户端。客户端配置可以继续看 Clash 指南。