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<!--
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OAuth2FlowDemo.vue
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OAuth2 / OIDC 授权码流程(手动推进,更贴近真实接入)
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-->
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<template>
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<div class="oauth2-demo">
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<div class="header">
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<div class="title">🔑 OAuth2:第三方登录(授权码流程)</div>
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<div class="subtitle">
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用最常见的 Authorization Code Flow(建议配合
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PKCE)。默认手动推进,不自动下一步。
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</div>
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</div>
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<div class="controls">
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<button class="btn primary" @click="start" :disabled="step !== 0">
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开始
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</button>
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<button class="btn" @click="prev" :disabled="step <= 1">上一步</button>
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<button
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class="btn primary"
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@click="next"
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:disabled="step === 0 || step >= maxStep"
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>
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下一步
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</button>
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<button class="btn" @click="reset">重置</button>
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<button class="btn" @click="copy(currentCmd)" :disabled="!currentCmd">
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{{ copied ? '已复制' : '复制命令' }}
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</button>
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</div>
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<div v-if="step > 0" class="progress">
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Step {{ step }} / {{ maxStep }} · {{ steps[step - 1]?.title }}
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</div>
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<div class="grid">
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<div class="card">
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<div class="card-title">角色</div>
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<div class="role">
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<div class="pill">Client(你的应用)</div>
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<div class="pill">Authorization Server(微信/Google 等)</div>
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<div class="pill">Resource Server(你的 API)</div>
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</div>
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<div class="desc">
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OAuth2
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的核心:<strong>你的应用不再保存用户在第三方的密码</strong>,而是拿到授权码/令牌后去换取用户信息。
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</div>
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</div>
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<div class="card">
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<div class="card-title">本步要做什么</div>
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<div class="desc">{{ steps[step - 1]?.desc || '点击开始' }}</div>
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<div v-if="steps[step - 1]?.warn" class="warn">
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<div class="warn-title">注意</div>
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<div class="warn-text">{{ steps[step - 1]?.warn }}</div>
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</div>
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</div>
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</div>
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<div class="card">
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<div class="card-title">请求/命令示例(可照抄)</div>
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<pre
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class="code"
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><code>{{ currentCmd || '(点击开始后显示)' }}</code></pre>
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<div class="hint">
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这是“示例请求”,不是你电脑上真实发出去的请求;你可以把参数替换成自己的
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client_id / redirect_uri。
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</div>
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</div>
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<div class="card">
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<div class="card-title">你真正需要记住的 4 件事</div>
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<ul class="list">
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<li>
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<strong>redirect_uri 必须白名单:</strong>避免被人把 code
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劫持到自己的站。
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</li>
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<li><strong>state 必须校验:</strong>防 CSRF(登录也会被 CSRF)。</li>
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<li><strong>code 只能用一次且很快过期:</strong>泄露影响有限。</li>
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<li>
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<strong>access token 要短 + refresh token 要保护:</strong>refresh
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token 更像“长期钥匙”。
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</li>
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</ul>
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</div>
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</div>
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</template>
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<script setup>
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import { computed, ref } from 'vue'
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const maxStep = 6
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const step = ref(0)
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const copied = ref(false)
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const params = {
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clientId: 'your_client_id',
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redirectUri: 'https://your.app/callback',
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scope: 'openid profile email',
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state: 'random_state_123',
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code: 'auth_code_xyz',
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codeVerifier: 'pkce_verifier_...',
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codeChallenge: 'pkce_challenge_...'
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}
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const steps = [
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{
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title: '1) 跳转到授权页',
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desc: '你的应用把用户重定向到授权服务器,让用户登录并授权。',
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warn: 'redirect_uri 必须白名单;state 用于防 CSRF。'
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},
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{
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title: '2) 用户授权',
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desc: '用户在第三方确认“允许此应用读取基本信息”。(这一步发生在第三方页面)'
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},
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{
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title: '3) 带 code 回调',
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desc: '授权服务器把用户带回 redirect_uri,并附上一次性的授权码 code。'
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},
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{
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title: '4) 用 code 换 token',
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desc: '你的后端(或移动端 + PKCE)调用 token endpoint,把 code 换成 access token。'
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},
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{
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title: '5) 用 token 拉取用户信息',
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desc: '携带 access token 请求 userinfo(或你自己业务的资源服务)。'
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},
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{
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title: '6) 建立你自己的登录态',
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desc: 'OAuth2 只解决“第三方授权”,你的系统还要创建自己的 session/JWT(并做授权)。',
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warn: '不要把第三方 access token 当作你系统的权限 token;两者用途不同。'
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}
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]
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const currentCmd = computed(() => {
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if (step.value === 0) return ''
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if (step.value === 1) {
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return `GET https://auth.server/authorize?response_type=code&client_id=${params.clientId}&redirect_uri=${encodeURIComponent(
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params.redirectUri
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)}&scope=${encodeURIComponent(params.scope)}&state=${params.state}&code_challenge=${params.codeChallenge}&code_challenge_method=S256`
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}
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if (step.value === 2) {
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return `(用户在授权页点击“同意/授权”)`
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}
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if (step.value === 3) {
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return `302 ${params.redirectUri}?code=${params.code}&state=${params.state}`
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}
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if (step.value === 4) {
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return `POST https://auth.server/token
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Content-Type: application/x-www-form-urlencoded
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grant_type=authorization_code&
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code=${params.code}&
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redirect_uri=${encodeURIComponent(params.redirectUri)}&
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client_id=${params.clientId}&
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code_verifier=${params.codeVerifier}`
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}
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if (step.value === 5) {
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return `GET https://auth.server/userinfo
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Authorization: Bearer <access_token>`
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}
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return `你的后端:
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1) 读取 userinfo(拿到第三方 user_id)
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2) 在你系统里创建/绑定用户
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3) 返回你自己的 session cookie 或 JWT`
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})
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const start = () => {
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step.value = 1
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}
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const next = () => {
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step.value = Math.min(maxStep, step.value + 1)
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}
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const prev = () => {
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step.value = Math.max(1, step.value - 1)
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}
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const reset = () => {
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step.value = 0
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copied.value = false
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}
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const copy = async (text) => {
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try {
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await navigator.clipboard.writeText(text)
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copied.value = true
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setTimeout(() => {
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copied.value = false
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}, 800)
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} catch {
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copied.value = false
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}
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}
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</script>
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<style scoped>
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.oauth2-demo {
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border: 1px solid var(--vp-c-divider);
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background: var(--vp-c-bg-soft);
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border-radius: 8px;
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padding: 1.5rem;
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margin: 1rem 0;
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}
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.header {
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margin-bottom: 1rem;
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}
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.title {
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font-weight: 800;
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color: var(--vp-c-text-1);
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}
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.subtitle {
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margin-top: 0.25rem;
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color: var(--vp-c-text-2);
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font-size: 0.9rem;
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}
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.controls {
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display: flex;
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gap: 0.5rem;
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flex-wrap: wrap;
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margin-bottom: 0.75rem;
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}
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.btn {
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padding: 0.5rem 0.75rem;
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border-radius: 6px;
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border: 1px solid var(--vp-c-divider);
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background: var(--vp-c-bg);
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color: var(--vp-c-text-1);
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cursor: pointer;
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font-weight: 700;
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font-size: 0.875rem;
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}
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.btn.primary {
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background: var(--vp-c-brand);
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border-color: var(--vp-c-brand);
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color: var(--vp-c-bg);
|
2026-01-18 12:21:49 +08:00
|
|
|
|
}
|
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|
|
|
|
2026-01-19 11:25:10 +08:00
|
|
|
|
.btn:disabled {
|
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opacity: 0.5;
|
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cursor: not-allowed;
|
2026-01-18 12:21:49 +08:00
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}
|
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|
2026-01-19 11:25:10 +08:00
|
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.progress {
|
2026-01-18 12:21:49 +08:00
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color: var(--vp-c-text-2);
|
2026-01-19 11:25:10 +08:00
|
|
|
|
font-size: 0.9rem;
|
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|
|
margin-bottom: 0.75rem;
|
2026-01-18 12:21:49 +08:00
|
|
|
|
}
|
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|
2026-01-19 11:25:10 +08:00
|
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|
|
.grid {
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|
|
display: grid;
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|
|
grid-template-columns: 1fr 1fr;
|
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|
|
|
gap: 1rem;
|
2026-01-18 12:21:49 +08:00
|
|
|
|
margin-bottom: 1rem;
|
|
|
|
|
|
}
|
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|
|
|
|
|
2026-01-19 11:25:10 +08:00
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|
|
.card {
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|
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|
|
background: var(--vp-c-bg);
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|
|
border: 1px solid var(--vp-c-divider);
|
2026-01-18 12:21:49 +08:00
|
|
|
|
border-radius: 8px;
|
|
|
|
|
|
padding: 1rem;
|
|
|
|
|
|
}
|
|
|
|
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|
|
2026-01-19 11:25:10 +08:00
|
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|
|
.card-title {
|
|
|
|
|
|
font-weight: 800;
|
2026-01-18 12:21:49 +08:00
|
|
|
|
margin-bottom: 0.75rem;
|
2026-01-19 11:25:10 +08:00
|
|
|
|
color: var(--vp-c-text-1);
|
2026-01-18 12:21:49 +08:00
|
|
|
|
}
|
|
|
|
|
|
|
2026-01-19 11:25:10 +08:00
|
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|
|
.role {
|
2026-01-18 12:21:49 +08:00
|
|
|
|
display: flex;
|
|
|
|
|
|
gap: 0.5rem;
|
2026-01-19 11:25:10 +08:00
|
|
|
|
flex-wrap: wrap;
|
|
|
|
|
|
margin-bottom: 0.75rem;
|
2026-01-18 12:21:49 +08:00
|
|
|
|
}
|
|
|
|
|
|
|
2026-01-19 11:25:10 +08:00
|
|
|
|
.pill {
|
2026-01-18 12:21:49 +08:00
|
|
|
|
border: 1px solid var(--vp-c-divider);
|
2026-01-19 11:25:10 +08:00
|
|
|
|
background: var(--vp-c-bg-alt);
|
|
|
|
|
|
color: var(--vp-c-text-2);
|
|
|
|
|
|
border-radius: 999px;
|
|
|
|
|
|
padding: 0.2rem 0.6rem;
|
|
|
|
|
|
font-size: 0.85rem;
|
2026-01-18 12:21:49 +08:00
|
|
|
|
}
|
|
|
|
|
|
|
2026-01-19 11:25:10 +08:00
|
|
|
|
.desc {
|
|
|
|
|
|
color: var(--vp-c-text-2);
|
|
|
|
|
|
line-height: 1.75;
|
2026-01-18 12:21:49 +08:00
|
|
|
|
}
|
|
|
|
|
|
|
2026-01-19 11:25:10 +08:00
|
|
|
|
.warn {
|
|
|
|
|
|
margin-top: 0.75rem;
|
|
|
|
|
|
border: 1px solid rgba(var(--vp-c-brand-rgb), 0.18);
|
|
|
|
|
|
background: rgba(var(--vp-c-brand-rgb), 0.06);
|
2026-01-18 12:21:49 +08:00
|
|
|
|
border-radius: 8px;
|
2026-01-19 11:25:10 +08:00
|
|
|
|
padding: 0.75rem;
|
2026-01-18 12:21:49 +08:00
|
|
|
|
}
|
|
|
|
|
|
|
2026-01-19 11:25:10 +08:00
|
|
|
|
.warn-title {
|
|
|
|
|
|
font-weight: 800;
|
|
|
|
|
|
color: var(--vp-c-text-1);
|
2026-01-18 12:21:49 +08:00
|
|
|
|
margin-bottom: 0.25rem;
|
|
|
|
|
|
}
|
|
|
|
|
|
|
2026-01-19 11:25:10 +08:00
|
|
|
|
.warn-text {
|
2026-01-18 12:21:49 +08:00
|
|
|
|
color: var(--vp-c-text-2);
|
2026-01-19 11:25:10 +08:00
|
|
|
|
line-height: 1.7;
|
2026-01-18 12:21:49 +08:00
|
|
|
|
}
|
|
|
|
|
|
|
2026-01-19 11:25:10 +08:00
|
|
|
|
.code {
|
|
|
|
|
|
margin: 0;
|
|
|
|
|
|
padding: 0.75rem;
|
|
|
|
|
|
border-radius: 6px;
|
|
|
|
|
|
background: var(--vp-c-bg-alt);
|
2026-01-18 12:21:49 +08:00
|
|
|
|
border: 1px solid var(--vp-c-divider);
|
2026-01-19 11:25:10 +08:00
|
|
|
|
overflow-x: auto;
|
2026-01-18 12:21:49 +08:00
|
|
|
|
}
|
|
|
|
|
|
|
2026-01-19 11:25:10 +08:00
|
|
|
|
.hint {
|
|
|
|
|
|
margin-top: 0.75rem;
|
|
|
|
|
|
color: var(--vp-c-text-2);
|
2026-01-18 12:21:49 +08:00
|
|
|
|
font-size: 0.9rem;
|
2026-01-19 11:25:10 +08:00
|
|
|
|
line-height: 1.7;
|
2026-01-18 12:21:49 +08:00
|
|
|
|
}
|
|
|
|
|
|
|
2026-01-19 11:25:10 +08:00
|
|
|
|
.list {
|
|
|
|
|
|
margin: 0;
|
|
|
|
|
|
padding-left: 1.1rem;
|
2026-01-18 12:21:49 +08:00
|
|
|
|
color: var(--vp-c-text-2);
|
2026-01-19 11:25:10 +08:00
|
|
|
|
line-height: 1.75;
|
2026-01-18 12:21:49 +08:00
|
|
|
|
}
|
|
|
|
|
|
|
2026-01-19 11:25:10 +08:00
|
|
|
|
@media (max-width: 720px) {
|
|
|
|
|
|
.grid {
|
|
|
|
|
|
grid-template-columns: 1fr;
|
2026-01-18 12:21:49 +08:00
|
|
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|
|
</style>
|