初始化项目：添加后端代码、ThinkPHP框架、前端资源

public/assets/vue/index.53bc1c08.css

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+.alert[data-v-a02ca8b2]{margin-bottom:15px}.preview-code[data-v-a96949ff]{background-color:var(--color-neutral-2);width:170px;height:170px;padding:20px;margin:20px auto}.balance-card[data-v-bfe2841a]{background:#fff;border-radius:8px;margin:0 24px 16px;background-color:var(--color-neutral-1)}.balance-card .balance-item[data-v-bfe2841a]{text-align:left}.balance-card .balance-label[data-v-bfe2841a]{font-size:13px;color:var(--color-text-3);margin-bottom:4px;display:flex;align-items:center}.balance-card .balance-value[data-v-bfe2841a]{font-size:24px;font-weight:600;color:var(--color-text-1);display:flex;align-items:center;gap:24px;margin-top:16px}.withdraw-body[data-v-bfe2841a]{padding:8px 0 4px}.withdraw-field[data-v-bfe2841a]{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}.withdraw-field label[data-v-bfe2841a]{font-size:14px;color:var(--color-text-1);flex-shrink:0}.withdraw-field .withdraw-input-wrap[data-v-bfe2841a]{display:flex;align-items:center;gap:4px}.withdraw-field .withdraw-input[data-v-bfe2841a]{width:180px}.withdraw-field .withdraw-unit[data-v-bfe2841a]{font-size:14px;color:var(--color-text-1)}.withdraw-balance[data-v-bfe2841a]{font-size:13px;color:var(--color-text-2);margin-bottom:12px}.withdraw-balance a[data-v-bfe2841a]{margin-left:8px}.withdraw-tip[data-v-bfe2841a]{font-size:12px;color:var(--color-text-3);margin-bottom:24px}.withdraw-actions[data-v-bfe2841a]{display:flex;justify-content:flex-end;gap:12px}.withdraw-actions .arco-btn[data-v-bfe2841a]{min-width:80px}.form-submit-btn[data-v-3e15e084]{padding:16px 0;text-align:center;background-color:#fff}.item-box[data-v-8eb53dbd]{margin-bottom:20px}